• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    "WEED SEED DEVITALIZATION ARRANGEMENT" The weed seed devitalization arrangement for use with a harvester, attached to a harvester, towed behind or independently. The weed seed devitalization arrangement receives weed seeds embedded in a portion of air and material previously discharged from a harvester or other planting cutter or grass. The weed seed devitalization arrangement includes a rotor and stator arrangement including, but not necessarily excluding other elements, one or more substantially circular stationary sets of weed seed impact elements, the elements being arranged to impact the weed seeds being supplied into the substantially circular assembly; and one or more substantially circular rotating assemblies of weed seed impact elements, the rotating assembly being movable with respect to a substantially stationary circular assembly of weed seed impact elements, the rotating assembly movable with respect to a set substantially circular stationary of weed seed impact elements, the impact elements of the substantially rotating circular arrangement arranged to impact the weed seeds being directed through the substantially circular rotating assembly. Another element may be a rotating element driven at or near the central part of the rotor and stator arrangement to receive the air and material discharged from the harvester ingrained with the weed seeds and to provide a flow of air and ingrained material including the weed seeds for layout clusters
    公开号:BR112015019742B1
    申请号:R112015019742-6
    申请日:2014-02-19
    公开日:2021-02-23
    发明作者:Nicholas Kane Berry；Chris SAUNDERS
    申请人:University Of South Australia；Grains Research & Development Corporation；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [001] The present invention relates to harvesters and, in particular, to the use of provisions to devitalize weed seed embedded in a part of the air and material discharged from a harvester. FUNDAMENTALS
    [002] Weeds are a continuing threat to the yield of grain crops worldwide as they compete with crops for water, sunlight and nutrients. In many parts of the world, herbicides are used heavily to control weeds. Herbicides have facilitated agricultural systems based on minimal tillage (soil disturbance), resulting in reduced soil erosion, evaporation and improved plantation yield. However, heavy use of herbicides has led to the evolution of herbicide-resistant weeds, which now threatens global food production.
    [003] Researchers have found that one way to obtain herbicide-resistant weed control is to remove weed seeds from the field before the seeds take root in the soil. The removal of weed seeds stops the reproduction of plants, resistant or non-resistant, and, in this way, controls the evolution of herbicide-resistant weeds. During grain harvesting, there is an opportunity to collect weed seeds using a combine and thereby control herbicide-resistant weeds. Weed seeds above the cutting height of the harvester enter the harvester and are processed. Weed seeds are removed from the plant stem in the harvester's shear and fall into the harvester's cleaning sieve. The size and aerodynamic properties of a weed seed determine its destination in the combine. Seeds that are small enough to fit through the combine sieve that have a terminal speed similar to or greater than the grain fall through the combine sieve end in the grain tank. Seeds that are too large to fall through the sieve or have a terminal velocity lower than that of the grain must come out of the rear of the combine with the residual material (mainly material from planting waste). Commonly, this residual material is collected to remove weed seeds from the field by using the cart of residual planting material, or baler, or simply by placing the residual material in a row to be burned. However, all of these methods remove nutrient-rich waste from the field, which goes against the principle of retaining as much residual coverage as possible for conservation of agricultural methods. In addition, all of these methods require post-harvest operations, and these represent an additional cost and time commitment for the farmer.
    [004] An attractive alternative to remove or burn waste material for weed seed control is to devitalize weed seeds in the field and retain all waste and, thus, nutrients in the field. Physical damage caused to seeds through grinding has been known for a long time to devitalize seeds. The technology to process weed seeds with a simultaneous grinding with the grain harvest has been pursued and has resulted in some provisions of the prior art.
    [005] US patent 3448933 (Roy and Bailey 1969) describes a cylinder mill for processing weed seeds in clean grain sieves. However, this approach still allows weed seeds with low terminal velocity to come out with the residual material and to be spread over the harvester. In addition, newer harvesters do not sieve clean grain and therefore this invention is not applicable to modern harvesters. US patent 5059154 (Reyenga 1991) describes the use of a part of cylinders to grind the residual planting material at the combine sieve exit. The use of a breaking action to damage the seeds in a large stream of residual planting material is problematic since the surrounding material can dampen the seeds. Another mill was developed to be more efficient than the roll mill as described in another AU patent 2001038781 (Zani 2001). The mill described in that patent only had the capacity to process a small proportion of the total residual planting material in the harvester sieve. Thus, this invention is based on the removal of most of the residual planting material with a sieve before being processed. The sieve used to separate weed seeds from the residual planting material was not able to handle the increased planting material residual loads when modern harvesters increased their capacity and, therefore, development did not continue.
    [006] An alternative approach has been adopted for Harrington Seed Destructor (HSD), US patent 8152610 (Harrington 2012) for processing the entire stream of residual planting material. HSD uses a modified cage mill from the mining industry to spray residual planting material and any weed seeds contained as they are unloaded from the harvester. Due to the size, weight and energy requirement of the cage-type mill, the HSD is mounted at the rear with its own motor towed behind the combine. Residual planting material is transferred from the combine to the HSD via flexible connections.
    [007] The cost and complexity of HSD should limit its commercial viability. To reduce the cost and complexity of weed control at harvest time, it is desirable to have a weed seed devitalization device integrated with a combine capable of handling the large volume and rate of air and material discharge planting waste entwined with the weed seeds in the harvester sieve.
    [008] The HSD cage mill is not suitable for integration into a combine because: (1) the energy consumption of the cage mill is such that it requires a separate power source; (2) the large size of the mill is not readily integrated into the already large harvester; (3) the complication of a counter-rotating cage drive system adds size, weight and complex drive mechanisms; (4) the weight of the cage-type mill, the work structure and the drive system are added to the already heavy weight of a combine; (5) converting a wide rectangular feeder from the harvester sieve to the small circular feeder of the cage-type mill with the drive shaft traversing the inlet, introduces considerable spacing problems if integrated with a harvester. BRIEF DESCRIPTION OF THE INVENTION
    [009] In one aspect of the invention, a weed seed devitalization arrangement for receiving air and material entrenched with weed seeds, the arrangement includes, one or more substantially stationary circular assemblies of weed seed impact elements weed, the weed seed impact elements of the stationary assemblies having a desired impact surface arranged so as to impact the weed seeds passing through the substantially stationary circular assembly; and one or more of the substantially circular rotating assemblies of the weed seed impact elements, the movable rotating assembly about a common axis with respect to a substantially stationary circular assembly of the weed seed impact elements, wherein the The desired impact surface of an impact element of the stationary assembly is oriented in the opposite direction in which the rotor assembly rotates, so that either to impact and direct a weed seed to pass through the stationary assembly or to impact and direct a weed seed radially into the stationary assembly regardless of the width and length of the weed seed.
    [010] In a further aspect of the invention there is an additional element being a dispensing element at or near the center of the rotor and stator arrangement to receive air or material entangled with the weed seeds and to direct a flow of air and entangled material including weed seeds through the substantially circular assemblies, the flow having radial and tangential components with respect to the axis of rotation of the rotating circular assembly.
    [011] In a further aspect of the invention there are at least substantially stationary circular assemblies of weed seed impact elements, or at least two substantially circular rotating assemblies of weed seed impact elements.
    [012] In a further aspect of the invention, there is a harvester including a weed seed devitalization arrangement located on the harvester in order to receive some of the air and material discharged from the harvester.
    [013] In another aspect of the invention, there is a provision for devitalizing weed seed for processing weed seeds embedded in a portion of the air and material discharged, including a collection and distribution mechanism for receiving material including weed seeds and entraining material and weed seed in an air stream, one or more substantially circular sets of weed impact elements, the weed impact elements of the stationary assembly having an arranged impact surface desired arranged so as to impact the weed seed through the substantially stationary circular assembly; and one or more substantially circular rotating assemblies of weed seed impact elements, the rotating assembly being movable about a common axis with respect to a substantially stationary circular assembly of weed seed impact elements, wherein the surface of desired impact, of an impact element of the stationary set, is oriented in the opposite direction in which the rotor set rotates, so that either to impact and direct a weed seed to pass through the stationary set or to impact and direct a weed seed radially into the stationary assembly regardless of the width or length of the weed seed.
    [014] Throughout this specification, weed seeds are referred to as including both seeds of plants foreign to the plantation being harvested and seeds coming out of the harvester (grain loss) from the plantation being harvested. The seeds that leave the harvester from the harvest of the plantation become voluntary weeds for planting in the following season; thus, the term weed seeds is used for both.
    [015] Throughout this specification and in the claims that follow, unless the context requires otherwise, the term "comprises" and "includes" and its variations such as "comprising" and "including" will be understood to imply the inclusion of an integer or group of integers, but not excluding any other integer or group of integers.
    [016] Reference to any background or prior art in that specification is not, and should not be taken as a science or any form of suggestion, that such background or prior art forms part of common general knowledge.
    [017] Specific embodiments of the invention will now be described in some additional details with reference to and as illustrated in the attached figures. These embodiments are illustrative, and should not restrict the scope of the invention. Suggestions and descriptions of other embodiments may be included within the scope of the invention, but may not be illustrated in the accompanying figures or alternative features of the invention may be illustrated in the figures, but not described in the specification. BRIEF DESCRIPTION OF THE FIGURES
    [018] Figure 1 shows a cropped view of a combine;
    [019] Figure 2 shows spreaders of residual planting material from the prior art located in one of the air and material discharge outlets of a harvester;
    [020] Figure 3 shows an embodiment of the invention in a similar position as one of the spreaders of residual planting material shown in figure 2;
    [021] Figure 4 shows a side view of an impact element in a configuration that illustrates the factors that contribute to its effective height;
    [022] Figure 5 presents an external perspective view of a modality of a weed seed devitalization arrangement;
    [023] Figure 6A shows an exploded perspective view of the rotor of embodiment A of a weed seed devitalization arrangement;
    [024] Figure 6B shows an exploded perspective view of the rotor of another embodiment B of a weed seed devitalization arrangement;
    [025] Figure 6C shows an exploded perspective view of the rotor of another embodiment C of a weed seed devitalization arrangement;
    [026] Figure 7A shows an exploded perspective view of the stator of embodiment A of a weed seed devitalization arrangement;
    [027] Figure 7B shows an exploded perspective view of the stator of another embodiment B of a weed seed devitalization arrangement;
    [028] Figure 7C shows an exploded perspective view of the stator of another embodiment C of a weed seed devitalization arrangement;
    [029] Figure 8A shows a cross-sectional view of the stator and rotor of modality A of the weed seed devitalization arrangement;
    [030] Figure 8AA shows an amplified view of part of Figure 8A showing the stator and the rotor;
    [031] Figure 8B shows an upper cross-sectional view of the stator and rotor of another embodiment B of the weed seed devitalization arrangement;
    [032] Figure 8C shows an upper cross-sectional view of the stator and rotor of an embodiment C of the weed seed devitalization arrangement;
    [033] Figure 9A is a representation of the path of a weed seed through a plan view of embodiment A of the rotor and stator arrangement;
    [034] Figure 9B is a representation of the path of a weed seed through a plan view of another embodiment B of the rotor and stator arrangement;
    [035] Figure 9C is a representation of the path of a weed seed through a plan view of another embodiment C of the rotor and stator arrangement;
    [036] Figure 10 shows a perspective view of the rotor and stator arrangement of the assembled embodiment without a housing;
    [037] Figure 11 shows a perspective view of the combined rotor and stator assembly of embodiment C within a housing;
    [038] Figure 12 is a graph of percentage devitalization of Lolium Rigidum X speed of impact by impact;
    [039] Figure 13A is a graph of devitalization of Lolium Rigidum seed X speed of rotation of the weed seed impact elements in a rotating set for embodiment A; and
    [040] Figure 13B is a graph of devitalization of Lolium Rigidum seed x speed of rotation of the weed seed impact elements in a rotating set for embodiment B. DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION
    [041] This specification refers to a weed seed devitalization arrangement capable of fixing, being driven by and handling the material flow of large modern harvesters (eg, class 8 and 9) for harvesting grain crops , the harvester weighing around 16 tonnes, with engine power of the order of 350 kilowatts, with the thresher width of 12 meters. The harvester is capable of harvesting a wide range of grain crops with high yields. For example, a modern combine harvester can harvest more than 40 tons per hour of wheat, expelling 12 tons per hour of residual planting material in the air stream of 5 to 7 cubic meters per second, and expelling 20 tons per hour of straw. The harvester is used, for example, for the purpose of illustrating the characteristics of at least one harvester.
    [042] It is also possible that the weed seed devitalization arrangement is used to process the material containing weed seeds that has been stored and which is introduced into the arrangement within an air flow.
    [043] Weed seed devitalization is defined as the reduction in germination of processed seeds compared to unprocessed seeds. It is a measure of the effectiveness of a weed control method applied to weed seeds. A certain number of seeds from a batch of seeds are processed and then planted. The same number of unprocessed seeds from the same batch of seeds is planted. The appearance of germs from both processed and unprocessed seeds is counted. The devitalization of the weed seed is calculated as a percentage as illustrated in equation 1 provided below. If zero processed seeds germinate, then the weed seed devitalization was 100%, or if the same number of processed and unprocessed seeds appears, then the weed seed devitalization was 0%.
    [044] Equation (1) weed seed devitalization (%) = 100 - (number of sprouted processed seeds / number of sprouted unprocessed seeds) x 100
    [045] Figure 1 shows a cropped view of an ideal view of a harvester machine 10. The front end of the machine 11 and the rear end of the harvester 12 are illustrated, with grain inlet and straw 14 in the front adapted to harvest the grain at an appropriate rate. The internal layout inside the combine separates grain, straw and other materials. The straw is transported and unloaded from the rear of the harvester spread evenly across the width cut in front, or in a narrow row so that it can be bundled and used in the future. The other material has multiple components, that is, residual planting material, with pieces of broken straw of various sizes, weed seeds, inner and outer wheat cover (very light to soft) and dust. All of these components have different sizes, and when transported by air, different terminal speeds.
    [046] In one embodiment, a weed seed devitalization arrangement 16 is located at the rear of the machine 12 as a replacement for the planting waste material spreader 18 which is shown in figure 2 (prior art). Plantation waste spreaders are not used on all harvesters, but the illustrated location is suitable for a weed seed devitalization arrangement.
    [047] Figure 3 shows two weed seed devitalization arrangements 16a and 16b that work to receive weed seeds embedded in a portion of the air and material discharged from the combine 10 and illustrates that the prior art arrangement can be promptly replaced.
    [048] Figures 4 and 5 are described later in the specification.
    [049] In this specification, the term rotor is sometimes used to identify a substantially circular set of impact elements that rotate or are rotating, while the term stator is sometimes used to identify a substantially circular set of impact elements that are stationary with respect to the rotors.
    [050] In figures 6 to 9, three different embodiments of a weed seed devitalization arrangement 16 are shown as A, B and C, respectively. The details of the three embodiments of the weed seed devitalization arrangement 16 are best illustrated in figures 6A, 6B and 6C and 7A, 7B and 7C. Half of an embodiment of the weed seed devitalization arrangement 16 is illustrated in figures 6A, 6B and 6C, which show rotors (rotating assemblies) 20 and 22, each having a set of multiple impact elements 60, and one centrally located rotating element 24. Not illustrated in detail is that, in one embodiment, each of the rotors 20, and 22 and a centrally located rotating element 24 are connected to a single plate 62 which is rotatably driven by the rotary motion actuator 26 as shown in figure 3. One embodiment of the rotary actuator is a driven motor. Details of rotors 20 and 22 will be described in greater detail later in this specification. In one embodiment, the actuator is hydraulically driven.
    [051] Also described in figures 6A and 6B are external walls of a housing 30. The housing in this embodiment includes a wall 28 connected to a plate 32, which, in this embodiment is a plate located below the rotors 20 and 22, the centrally located rotating element 24 and single plate 62; that forms the lower wall of the weed seed devitalization arrangement 16.
    [052] In an additional embodiment not illustrated, each of the rotating impact elements and the centrally located rotating element 24 are independently rotatable.
    [053] Figures 7A, 7B and 7C show a second half of three modalities of the weed seed devitalization arrangement 16. The first concretization A has two substantially stationary circular assemblies 34 and 36 of the weed impact elements that are connected to a plate 38. The plate 38 forms part of the housing 30 when arranged on the open cavity formed wall 28 of the other half of the housing 30 as shown in figure 6. The second embodiment B has three substantially circular rotating assemblies of elements of weed seed impact. The third embodiment C has the same number of rotating and stationary impact element assemblies as the second embodiment, but the impact elements of the stationary assembly have different arrangements from the impact elements of embodiments A and B, as more clearly shown in the figures 8C and 9C.
    [054] The two halves are connected to form a rotor and stator arrangement, with which the added support walls 28, 32 and 38 create a housing 30 for the arrangement. The housing is used to guide the material and air to get out of the weed seed devitalization arrangement. However, it is possible that the arrangement with the appropriate support to perform the devitalization function of weed seeds for receiving weed seeds embedded in a part of the air and material discharged from a harvester without the housing, as illustrated in embodiment C in figure 10. The harvester can eject a portion of air and material directly into the rotor and stator arrangement. An arrangement included in the combine or in the rotor and stator arrangement may include a distributor arrangement designed to direct air and material including weed seed into the rotor and stator arrangement.
    [055] A rotor and stator arrangement includes, in one embodiment, a rotating element 24, a substantially circular stationary set of weed seed impact elements (20, 22 and 62), a substantially circular rotating set of impact weed elements (20, 22 and 62). weed seeds (24, 36). In first embodiment A there are two sets of stationary and two rotating weed seed impact elements. In the second embodiment B three sets of stationary and two rotating weed seed impact elements. An additional stationary set of impact elements in mode B increases the efficiency of embodiment B by using the residual velocity of the material that can be impacted by a rotating impact element to obtain an additional impact. In the third embodiment there are two sets of stationary and two rotating impact elements as in embodiment B, but the angle of the impact elements of the stationary assemblies is configured differently from the impact elements of the stationary assemblies of embodiments A and B.
    [056] The term substantially circular is used in this specification to illustrate that it would be possible to position the weed seed impact elements in another way than in a perfectly circular set and still make the stationary and rotating sets perform their tasks. tasks of impacting the weed seed.
    [057] The two halves of housing 30 are illustrated in a shape connected in figure 5, which also features a distribution element 40 for receiving and directing a portion of the air and entrained matter including the weed seed discharged from the harvester 10 Embodiments A, B and C fit within that same housing. An example of such a distribution element includes a tapered shape made of four panels 42a, 42b, 42c and 42d which are connected to a cylindrical extension formed on the upper surface of the plate 38. The top of a fin 24a of the rotating element 24 can be seen in central part of the rotor and stator arrangement inside the housing. However, the dispensing element can take a multitude of shapes to fit different harvester models and to capture different proportions of air and waste material discharged from the harvester. One embodiment includes the collection of all material discharged from the harvester (which is the residual material for planting and straw).
    [058] The rotating element 24 is just a way of directing the incoming material and weed seed embedded in the rotor and stator arrangement. An alternative is to rely on the flow or air generated by one or more substantially circular rotating assemblies of weed seed impact elements to pull material entrenched with the weed seed. In another alternative, the arrangement includes a dispenser that includes metallic material or other suitable material formatted to receive and direct an air flow, including ingrained weed material and seed, and direct it into and through the rotor arrangement and stator, where, the distributor essentially changes the direction of the air flow. In a particular embodiment, the dispenser is part of a dispensing mechanism (not shown) carrying an airflow including ingrained weed material and seeds, which when the targeting dispenser is located in or around the center of the substantially circular assemblies, directs airflow including material and ingrained weed seed into and through various assemblies, whether stationary or rotating, the flow having radial and tangential components with respect to the geometric axis of rotation of the rotating circular assembly . The physical shape of the dispenser can vary (call for adjusting the shape and configuration or being a substitutable element) for different weed seeds and material. Likewise, the way in which weed material and seeds are entrenched in an air flow can vary depending on the material, the weed seed and how it is stored or generated, but this is not a primary aspect of invention and is well within the expertise of the user or an engineer who deals with agricultural equipment.
    [059] The housing 30 as shown in figure 5 illustrates an outlet 44 formed by the walls 28 and the upper plate 38 and the lower plate 32 for air and material exhausted by the weed seed devitalization arrangement. The outlet 44 is arranged to be able to exhaust all the air and material received by the arrangement.
    [060] Details of the rotor and stator arrangement will now be provided. It will be appreciated that the description provided is only one of the three alternative embodiments of the invention. In these embodiments, the weed seed for which the project is optimized (at the moment as best illustrated by the inventors) for Lolium Rigidum seeds (annual ryegrass) in the residual wheat planting material stream.
    [061] The seeds of Lolium Rigidum weigh around 2.2 mg per seed; the seeds are elongated, around 5.8 mm long, 0.8 mm deep and 1.3 mm wide. The terminal velocity of Lolium Rigidum seeds is about 3.2 meters per second. The terminal velocity of the residual planting material ranges from 1 meter per second into the wheat cap at 5 meters per second for short straw with knots. The terminal speed of the wheat grain is typically about 8 meters per second. Residual planting material and Lolium Rigidum are ejected from the rear of the harvester together as they have a lower terminal speed than the grain, whereas the grain follows a different path and is collected separately by the harvester in a grain tank.
    [062] The flow of residual wheat planting material typical of a class 8 or 9 harvester is up to about 12 tonnes per hour. The proportion of weed seeds in this material flow is very small. The air flow from the combine cleaning fan is on the order of 5 to 7 cubic meters of air per second. Each rotor and stator arrangement pumps air flow in the order of 1.5 cubic meters per second. The remaining airflow from the harvester cleaning fan is able to flow unrestrictedly with the straw.
    [063] Figures 8A, 8B and 8C illustrate a view of the stators and rotors of three embodiments of the weed seed devitalization arrangement, useful to illustrate the constructed details of the rotor and stator arrangement of a weed seed devitalization arrangement. weed.
    [064] Although figures 8A, 8B and 8C provide a top perspective view of the side views provided in figures 6A, 6B and 6C and 7A, 7B and 7C illustrate that each of the sets of weed seed impact elements 60 are generally columnar and, in this embodiment, made of a steel tube or bar that is connected, typically by welding, to the upper and lower elements of the columns with the respective annular rotor plates.
    [065] The two (34, 36) in figure 7A and three (34, 35, 37) in figures 7B and 7C sets of stationary weed impact elements (stationary in a view with respect to housing 30, but also non-rotating like rotating assemblies and thus stationary with respect to rotating assemblies) include multiple weed seed impact elements 50, the nominal top of all elements 50 being welded to plate 38 and the nominal bottom of elements 50 associated with the substantially circular and radially internal assembly 34 being welded to a rolled steel annular ring 52 and with respect to the substantially circular radially external assembly (in this embodiment) 36 welded to a laminated steel ring 54, and with respect to the additional embodiment there is a substantially more radially circular outer assembly 37 welded to a rolled steel ring 55. In an alternative embodiment, each stationary assembly of the impact elements of s Weed components can be welded to independent support plates (38). In a further alternative embodiment, the stationary weed seed impact elements can be designed strong enough so as not to require support rings 52, 54 or 55.
    [066] In all embodiments A, B and C presented here, the shape of all weed seed impact elements 50 in the stationary set are rectangular in cross section, although there are a variety of shapes they can have, where a value criterion of the invention is that at least one face of the element (that face is not necessarily a face or flat surface, due to the location and orientation of the element, which should impact the weed seed) is formatted to promote weed seeds weed to be impacted almost at right angles to the face or surface when impacting the impact element, in this way, to maximize the normal component of its speed on impact. Maximizing the normal speed at impact ensures that the maximum amount of energy is printed on the seed, thus maximizing the likelihood of weed seed devitalization. The impact face or surface of an impact element can be oriented to cause an impacted weed seed to continue its outward direction or to be directed inward, possibly impacted by another impacting element, stationary or rotating , or even be redirected into the output stream by the driven rotating element.
    [067] To achieve the result, the face or surface can be curved in a particular way, it can be flat as shown. Additionally, the surface can be contoured or it can have a texture, for example, a textured and hardened surface treatment. The impact elements in a set of impact elements need not always have the same type of surface or orientation, as shown with respect to orientation, in figure 9C, for each of the sets of stationary impact elements. The disposition of any particular impact element is determined based on a number of factors including some, but not limited to rotation, effective height (to be described later in the specification) and others, which will be apparent to those skilled in the art having knowledge of the principles of the invention described here.
    [068] The driven rotating element is formatted to pull air and material and ingrained weed seed into the rotor and stator arrangement and direct air and material and ingrained weed seed to impact a weed seed impact element from a stationary assembly within 45 with respect to the orthogonal plane for a weed seed impact element surface. Describing an impact angle as equal to 45 with respect to the orthogonal plane is a limitation that tries to ensure that the impact is not just a soft blow to the weed seed.
    [069] The weed seed impact elements of a stationary set in one embodiment are solid, but alternative shapes, such as hollow, consisting of two parts (replaceable impact face) and preferably made of steel or other materials, for example example, plastic, carbon fiber, etc. it's possible.
    [070] The greater the chances of devitalizing the seed with an impact, the less energy will be required by the general layout, thus, the careful selection of material, surface shape and surface treatment in addition to the orientation of the impact elements of seed devitalization. of stationary weed.
    [071] Figures 9A, 9B and 9C illustrate a particle path calculated by the Computational Fluid Dynamics (CFD) model through each modality. The particle path is calculated from the calculated airflow field generated by the rotor and stator arrangement and the particle acceleration based on the aerodynamic properties of the Lolium Rigidum seeds. The impact path generated from the computational fluid dynamics model was used as the basis for the design for the three embodiments A, B and C. In the embodiments A, B and C presented here, the weed seed impact elements of a stationary set have a flat impact surface of columnar elements of rectangular cross section which are oriented to have an angle θ with respect to a line of radius 24r drawn from the 24x geometric axis of rotation of the driven rotation element 24 (illustrated in figure 8AA), and around which, in these embodiments, all the rotating impact elements revolve. In the embodiments A, B and C presented here, the angle θ is tilted in the reverse direction in which the motor assemblies rotate in order to increase the effective normal speed of the material including the weed seed, impacting a surface of the impact element. This arrangement maximizes the likelihood of achieving a direct impact of the weed seed (normal to the surface at the point of impact) rather than a light impact. The angle θ is shown in detail in figure 8AA and figures 9A, 9B and 9C illustrated in the respective spacing between the stationary and rotating sets of impact elements and the tip of the driven rotating element 24 for the circular set of impact elements of seed weed from a stationary set.
    [072] As discussed, the angle θ is chosen to achieve a high normal velocity impact component while maintaining a low velocity radial component (radial velocity) of the material. The radial speed after impact should be low enough so that the likelihood that the material will lose the next set of rotating impact elements is minimal. However, some radial velocity must be maintained so that the material has a low dwell time in the layout (that is, the material moves quickly through the layout). A high residence time causes a high mass fraction of residual planting material in the impact zone of the set of rotating and stationary impact bars, which results in wasted energy with the particles impacting other particles instead of the particles impacting the rotor and stator. Therefore, a longer residence time results in more material dampening impacts and reduced devitalization. In addition, a longer residence time results in reduced processing capacity for high mass flow of residual material coming out of a combine.
    [073] The angle θ is also chosen to compensate for any change in the path of the weed seed due to the radial component of movement obtained from aerodynamic forces from the air flow generated by the rotating element 24 and the existing air flow from the combine harvester. For particles with a lower terminal velocity, the radial component of movement is greater and, therefore, the particle path is curved more radially outward and, in each case, still has a tangential component of movement with respect to the geometric axis of rotation of the driven rotating element that is the same as the geometric axis of rotation of the rotating circular assembly. For weed seeds with a lower terminal velocity, the angle θ may need to be slightly increased to achieve the normal desired direct impact on the surface. The particle path illustrates that approximately one impact occurs for each row of rotating and stationary impact elements in embodiments A and B. Embodiment B has an additional impact due to the additional stationary set of weed seed impact elements. The additional static row in embodiment B uses particle kinetic energy from the last rotating row for breaking particles resulting in increased efficiency compared to embodiment A.
    [074] Embodiment C uses two different angles θ for the weed seed impact elements in the substantially stationary circular assemblies. A larger angle θ is used to impact the material, but ensure that it does not pass through the set of stationary impact elements at that point and return to another impact with the driven rotating element or rotating impact elements. A smaller angle θ is used to impact the material and allow the material to move to the next set of rotating impact elements. Weed seed impact elements with different θ angles are spaced circumferentially so that the material impacts each row of stationary and rotating impact element sets approximately twice.
    [075] In embodiment B, the weed seed impact elements of the stationary set have sharp edges and less side wall area that reduces the amount of material that has multiple impacts in each row of impact elements. In one embodiment, the weed seed impact elements of the rotating assembly are elongated and profiled (tear) in cross section (not shown). Embodiment B is closer to 1 impact in each row of impact elements; minimizing the amount of residual planting material in each zone; and minimizing the damping effect of residual planting material. This results in embodiment A having a greater drop in devitalization than embodiment B when the mass flow of planting waste is increased from 0.5 kg / s to 1.5 kg / s, as illustrated in figures 13A and 13B, respectively.
    [076] The increased radial velocity due to the radial acceleration of the air flow of the rotating element increases the likelihood that a weed seed will lose a set of impact elements. The combination of the number of impact elements in each set, their angle θ, and their length as illustrated in figures 9A, 9B and 9C determine the likelihood of an impact occurring and preventing weed seeds from losing static sets following the lines of air flow. The number of impact elements in each row is chosen so that according to the vectors of approximate average speed and radial acceleration of the particles due to aerodynamic forces, there is a minimal chance that the seeds of Lolium Rigidum will miss the set of elements of static impact. For weed seeds with a lower terminal velocity, the number of impact elements may need to be increased slightly to ensure that the probability of making static impact elements wrong is low.
    [077] There are two weed seed impact elements from the rotors (rotating assemblies) 20 and 22 that are shown in both figures 6A and 6C. In such an embodiment, as described, both sets 20 and 22 of weed seed impact elements are connected to a single plate 62 more clearly shown in figures 6A and 6C. Thus, in this embodiment, both sets rotate at the same rate. However, the sets can be configured differently from what was presented and, therefore, capable of rotating at different rates. Figure 6B shows two rotating assemblies 22 and 23.
    [078] The individual weed seed impact elements 60 of a rotating assembly are shown in top and side view in perspective respectively in Figures 6 and 8AA, illustrating that each of the sets of weed seed impact elements it is generally columnar and in one embodiment, made of steel tube and / or bar that is typically connected by welding to the upper and lower elements.
    [079] In the case of the rotating element, the two sets of weed seeds 22 and 23 (best illustrated in figures 6A, 6B and 6C) include multiple weed seed impact elements 60, the nominal bottom of all elements 60 being welded to plate 62 and the nominal top of elements 60 associated with the radially innermost substantially circular assembly 22 is welded to an annular ring or rolled steel 64 and with respect to the substantially circular and radially outermost assembly (in this embodiment) 22 to an annular ring of rolled steel 66.
    [080] In all embodiments, the shape of all weed seed impact elements 60 in a rotating assembly is square in cross section, although there are a variety of shapes that they can have, where a value criterion of the invention is that at least one face (there may be one or more faces of that element that are impacted by the seed during the operation of the arrangement) of the element (that face, due to the location and orientation of the element, which should impact the weed seed) is formatted to ensure that weed seeds impact almost at right angles to the surface at the point of impact, thus maximizing the normal component of its speed at impact, thus maximizing the likelihood of devitalization of the weed seed. To achieve this result, the surface can be curved in a particular way or it can be flat as shown. Additionally, the surface can also be contoured or it can have a texture, for example, a textured and hardened surface treatment.
    [081] The weed seed impact elements of a rotating assembly in a first embodiment A are made of hollow steel and are lighter than a solid bar, thus reducing the bending impulse due to centrifugal acceleration in addition to presenting a smaller impulse of inertia to initiate the lower torque. The weed seed impact elements of a rotating assembly in the second embodiments B and C are solid steel, which increases the wear life of the impact elements.
    [082] The more likely the seed to devitalize with an impact, the less energy required by the layout as a whole, thus the careful selection of the general layout, which includes, but is not limited to the surface, surface shape and treatment of surface as well as orientation of the weed seed impact elements of a rotating assembly.
    [083] The single plate 62 is also connected to and used to rotate the driven rotary element 24, thus the weed seed impact element assemblies 20 and 22 of a rotary assembly, and the driven rotary element 24 all rotate at the same rate. However, the driven rotating element can be configured differently from that described in that embodiment so that it can rotate separately from each weed seed impact element set. Note also that the driven rotating element 24 is at or near the center of the housing 30.
    [084] The effective height H of all weed seed impact elements and associated assembly elements is determined by the overlapping regions of the rotating and stationary weed impact element assemblies as shown in Figure 4. The effective height of the rotor and stator arrangement and the effective impact area (area enclosed by the rotor and stator that is not occupied by the impact elements in figure 8) determine the volume of air in the impact area of the rotor and stator arrangement. The volume of air in the impact zone of the rotor and stator arrangement influences the mass fraction of the material in the impact zone for a particular rotor and stator design that has a determined residence time of the material and is processing a certain flow of mass of material. For example, according to the dwell time of a rotor and stator layout design in particular processing a given mass flow of material, increasing the effective height of a rotor and stator layout would increase the volume of zone air. impact and reduce the mass fraction of material in the impact zone. Consequently, increasing the effective height of the rotor and stator arrangement would reduce the likelihood of inefficient impacts between particles resulting in a likely increase in efficiency and an increase in mass flow capacity. The effective height of the impact elements is proportional to the air volume flow rate of the rotor and stator arrangement. Increasing the effective height of the layout increases the amount of air that is drawn through the layout. However, any increase in the effective height is at the expense of energy consumption to trigger the arrangement. The effective height is also limited by the mass of rotating impact elements and the second impulse of impact element area, that is, the material and whether it is solid or hollow, needs to be strong enough to withstand the bending impulse caused by centrifugal acceleration in the rotating set of impact elements.
    [085] In the three embodiments illustrated here, there is an extensive use of metal to form the various elements, basically so that the strength and wear characteristics of the arrangement are not a limiting factor in its operation. However, there is no reason why alternative materials should be used in future embodiments where the driven rotary element, and sets of both stationary and rotating weed seed impact elements from the respective sets are made of, such as, for example, plastic or other hard-wearing material. In particular, the use of plastic for the rotating elements will result in its moment of inertia being less compared to the steel versions used in the described embodiments which will reduce the torque required to start the rotor. As expected, heat is generated by the disposition during its use, basically caused by the friction involved in the impact of the material entrenched in a large volume of air flow through the housing 30.
    [086] In the first embodiment A, the driven rotating element 24 is formatted to redirect the air and material received by the distributor element 40 of the housing 30 from the harvester. The element 24 (figure 6A), in this embodiment includes three metal plates radially and equally spaced 24a, 24b and 24c (ribs) connected along a common geometric axis of rotation 24x (figure 6) to each other.
    [087] The nominal upper ends of the plates 24a, 24b and 24c are all formatted to capture and redirect air and materials in an outlet direction with respect to the 24x rotational axis of the driven rotating element 24. The height of the driven rotating element 24 is substantially similar to the height of the stationary and rotating assemblies of the weed seed impact elements, but can extend into the distributor element 40 of the housing 30 (figure 5). The driven rotating elements perfectly distribute the material homogeneously in the axial and circumferential direction. A homogeneous distribution ensures that the mass fraction of the residual planting material into the air in the impact zone of the first set of impact elements is homogeneous throughout the whole volume.
    [088] Therefore, the probability of the weed seed impacting through the rotor and stator arrangement is maximized as opposed to the dampened impact of weed seeds with residual planting material. The number of rotating elements, the speed of rotation, and the speed of entry of the residual planting material determine how far the material moves axially and downwardly before being forced radially (outward) with respect to the 24x inward geometric axis of rotation of the first set of impact elements. According to an effective height B, there is an ideal number of rotating elements. Having more rotating elements means that the material will be forced out very quickly and the material will be concentrated at the top of the layout. Fewer rotating elements mean that the material will fall very low (axially) before being forced out, meaning that there will be a concentration of material at the bottom of the arrangement. A concentration of material should increase the damping of residual planting material against impacts and therefore will reduce the devitalization of the weed seed. It would be possible due to an increased depth of the provision for the use of two rotating elements.
    [089] A useful consequence of approximate dimensioning of the plates 24a, 24b, 24c is that, when rotated, their nominally vertical peripheral edges are spaced a distance from the substantially circular, stationary, radially innermost set of seed impact elements weed normally vertical so that the material transported by elongated air that joins the spaced distance is cut or folded, thus being effectively shorter in length and more easily transported through the subsequent arrangement and exit 44 of a housing 30, thus reducing the possibility of blocking by material.
    [090] In the second and third embodiments B and C, the driven rotating element is triangular. Instead of guide material with the rotating elements driven as with embodiment A, the material can fall in the central part under the action of gravity and is distributed using six rotating elements driven and spaced equally. The material distribution method is different for embodiments B and C compared to embodiment A. However, both methods provide a more homogeneous axial distribution of the production residue over the effective height H of the rotor and stator arrangement. The rotating element actuated in modes B and C have a support ring (20), but can operate without that ring.
    [091] Figure 12 is a graph of percentage devitalization of Lolium Rigidum X spike speed (the speed of rotation of the tip of a plate 24a) for a different number of impacts. The data were obtained by submitting individual seeds to a specific number of impacts at specific speeds using a rotary impact test device. The processed seeds were germinated and compared with a control germination of unprocessed seeds to calculate the devitalization of the weed seed. In this representation, a main curve equation was fitted to predict the percentage of seed devitalization according to any combination of number of impacts and impact speed. This equation is a specific material characteristic of Lolium Rigidum seeds. The same method can be used to develop an equation for the material characteristic for other target weed seeds.
    [092] Figures 9A, 9B and 9C are images based on a study of Computational Fluid Dynamics (CFD) particles from the rotor and stator arrangement. The number of impact and impact speeds were predicted from the CFD model by the entry of particles with equivalent aerodynamic properties of the Lolium Rigidum seeds and analysis of the particular trajectories, however, only a few are illustrated to reduce the complexity of the illustration. Such a CFD model can be readily created by those skilled in the relevant technique in order to assist with the "what if" development of alternative rotor and stator arrangements and impact elements and associated support and rotation arrangements. A number of interactions in geometry have been modeled to find a configuration that minimizes particles that miss rotating and stationary impact elements.
    [093] Figure 10 shows a perspective view of the stator assembly and the rotor assembly fitted together according to embodiment C. The stator assembly has two plates 102 and 104 to which multiple impact elements 50 are attached, which are presented located on the two rotating sets of weed seed impact elements 60, and attached to a number of locations 106 on plate 32. Similar numerical references have been used for similar elements throughout the specification, despite their exact configuration may differ depending on the embodiment, and may differ in additional alternative embodiments not shown but which fall within the scope of the invention as defined herein.
    [094] Figure 11 shows a perspective view of the combined rotor and stator assembly of embodiment C within the housing. The housing includes an upper plate 112 and one or more side walls 114. The side wall provides an outlet opening for the air outlet, devitalized weed seed and material that has been processed by the devitalization arrangement. The housing in figure 11 assists in controlling the direction of the material and air flow leaving the rotor and stator arrangement. However, as shown in figure 10, the weed seed devitalization arrangement can perform its primary function of weed seed devitalization without the housing.
    [095] The opening in plate 112 is located above the driven rotating element 24 and provides an entrance for air, weed seeds and material, which is a part of the total discharge from a harvester in operation. It is possible to fit a dispensing element 40 (figure 5) where the outlet of the distributed element is combined with the opening 116 in order to assist in the supply of air and material discharged from the harvester into the weed seed devitalization arrangement .
    [096] The volume of air and material that can be distributed to the weed seed devitalization arrangement does not need to match the total output of the harvester, which can, for example, be 5 to 7 mA3 / s since the harvester is or can be arranged to separate air and weed-seed material from the harvested grain, say, for example, to create a volume per second of about 1.5 cubic meters per second per disposition ( 3 cubic meters per second for two arrangements) of air and material with ingrained weed seeds compared to the combine's total volume capacity of about 5 to 7 cubic meters per second.
    [097] The weed seed devitalization arrangement can be arranged together with the combine operation to substantially combine the volume of air and material supplied for the weed seed devitalization arrangement. In one embodiment, the effective height, the size of the opening 116, the speed of rotation of the rotating set of weed seed impact elements, and other factors as described here are used to determine the ability of an arrangement to materialize. weed seed devitalization.
    [098] In one example, planting material or other residual material including weed seeds can be separated from the air flow inside the harvester without affecting the harvester operation using, for example, a separating baffle 21 shown in the figures 2 and 3 and the threshing and separating unit shown in figure 1.
    [099] Figure 13A and figure 13B are graphs of devitalization of real and modeled Lolium Rigidum X speed of rotation of the sets of rotting grass seed impact elements for the two embodiments A and B, respectively. The model foresees the use of the predicted number of impacts and impact velocities of the seeds in the arrangement of rotor and stator and application of the material equation of the devitalized Lolium Rigidum seeds. The close correlation validates the accuracy of CFD modeling and the method used to predict the devitalization of weed seed that was used to optimize the layout of the rotor and stator. For embodiment A with 1.5 kg / s per disposition (10.8 tonnes per hour for 2 dispositions) of residual planting material, the presence of a larger mass fraction of residual planting material in the impact zone acted to make with more particles impacting each other (inefficient) instead of impacting the rotor / stator (efficient), which reduced the devitalization of Lolium Rigidum. Conversely, for embodiment B, both yields of residual planting material showed very similar devitalization, indicating that the mass fraction was not high enough to significantly impact between particles. The sharper rotor bar edge and the reduced sidewall area of embodiment B reduce repeated impacts compared to embodiment A, which reduces the residence time of material in embodiment B and thereby reduces the fraction of mass for a given yield of residual planting material.
    [0100] The weed seed devitalization arrangement is fitted (at the time of manufacture or later) to the rear part 12 (reference to figure 1) of the combine, and during operation, it draws energy from the harvesting engine.
    [0101] In a first embodiment, the weed seed devitalization arrangement as described here and according to the scope of a claimed weed seed devitalization arrangement, the arrangement is located away from a harvester unloading area . Thus, there is an additional element of a provision that includes a receiving and directing element to receive and direct a portion of the air and material discharged from the harvester to be supplied for the devitalization of weed seeds. In this embodiment, the weed devitalization arrangement is provided on a platform, which can be mounted anywhere on the harvester or towed by the harvester. The arrangement can be powered by its own energy source or can be powered from the harvester.
    [0102] In another embodiment, the weed seed devitalization arrangement as described here and in accordance with the scope of a claimed weed seed devitalization arrangement, the arrangement is completely separate from a harvester. In this embodiment, the weed seed de-vitalization arrangement is configured to receive material previously unloaded from the combine or other device to generate plant material removed from plantations and planting areas, such as grass and plantations. Weed material and seeds having previously been generated and exhausted from the combine, or cutting machine, such as after they have been discharged to the ground or into a collection facility after such a process. In that circumstance, there is an additional element of an arrangement including a mechanism used to receive the discharged material and to entrain the material in an air flow that is provided for the weed seed devitalization arrangement described and defined here. This embodiment can be used to process stacks of residual planting material left by the waste planting material trolleys after harvesting or can be arranged as an attachment to a stem cutter, lawn mower, etc., used to cut areas communities and the shoulder of roads and golf courses, which in this way can process the discarded lawn clippings and weed seeds and achieve the devitalization of weed seeds in addition to particle size reduction, such as, for example, pelletizing .
    权利要求:
    Claims (17)
    [0001]
    1. Provision of devitalization of weed seeds (16) for receiving air and material entrenched with weed seeds, the arrangement being CHARACTERIZED by the fact that it includes: one or more stationary circular assemblies (20, 22, 23) of weed seed impact elements (50), the weed seed impact elements (50) of the stationary assembly (20, 22, 23) having a desired impact surface arranged to impact the weed seeds weed passing inside the stationary circular assembly (20, 22, 23), and each impact element being oriented to allow air, material and weed seeds to pass radially between the adjacent impact elements; and one or more rotating circular assemblies (34, 36, 37) of weed seed impact elements (60) and each impact element (60) being oriented to allow air, material and weed seeds to pass between the elements adjacent impact units, the rotating assembly (34, 36, 37) being movable about a common axis with respect to a stationary circular assembly (20, 22, 23) of weed seed impact elements, where the surface of desired impact of an impact element (50) of the stationary assembly (20, 22, 23), is oriented in the opposite direction in which the rotor assembly rotates, so as to both impact and direct a weed seed to pass radially through the stationary assembly (20, 22, 23) or to impact and direct a weed seed radially into the stationary assembly (20, 22, 23) regardless of the width and length of the weed seed and in which air, herb material and seeds weeds pass radially through each set of impact elements.
    [0002]
    2. Weed seed devitalization arrangement (16) according to claim 1, CHARACTERIZED by the fact that it additionally includes: a distributor element (40) on or near the axis of rotation of the rotating circular assembly to receive air and material entrenched with the weed seeds and to direct an air flow and material entrenched including weed seeds through the circular assemblies, the flow having radial and tangential components with respect to the geometric axis of rotation of the rotating circular assembly.
    [0003]
    3. Weed seed devitalization arrangement (16), according to claim 1, CHARACTERIZED by the fact that it additionally includes: a driven rotating element (24) that rotates about a common axis in relation to the rotating assembly (34 , 36, 37) to receive air and material entrenched with the weed seed to create a flow of air and entrenched material including weed seeds, the flow having radial and tangential components with respect to the axis of rotation of the driven rotating element.
    [0004]
    4. Weed seed devitalization arrangement (16), according to claim 1 or 3, CHARACTERIZED by the fact that there are: two or more stationary circular assemblies (20, 22, 23) of impact elements from seeds of weed; or two or more rotating circular assemblies (34, 36, 37) of weed seed impact elements.
    [0005]
    5. Weed seed devitalization arrangement (16) according to claim 1, CHARACTERIZED by the fact that each stationary weed seed impact element has a flat desired impact surface.
    [0006]
    6. Weed seed devitalization arrangement (16), according to claim 1 or 3, CHARACTERIZED by the fact that the spacing between the weed seed impact elements in each stationary circular set (20, 22, 23) is determined by one or more of the following characteristics: a. the rate of air and material flow through the stationary (20, 22, 23) and rotary (34, 36, 37) circular assemblies of the arrangement; B. the expected range of length, width and weight of ingrained weed seeds; ç. the expected speed range of ingrained weed seeds; d. the shape and orientation of each impact element with respect to the direction of air flow in the vicinity of the element; and. the likelihood that a weed seed will be impacted by the impact element; f. the rate of rotation of one or more of the rotating assemblies (34, 36, 37).
    [0007]
    7. Weed seed devitalization arrangement (16), according to claim 1, CHARACTERIZED by the fact that there is a spacing of weed seed impact elements in each rotating circular set (34, 36, 37) which is determined by one or more of the following characteristics: a. the rotation rate of the respective set; B. the rate of air and material flow through the stationary (20, 22, 23) and rotary (34, 36, 37) circular sets of the arrangement; ç. the expected range of the size and weight of the ingrained weed seeds; d. the expected speed range of ingrained weed seeds; and. the shape and orientation of each impact element with respect to the direction of air flow in the vicinity of the element; f. the likelihood that a weed seed will be impacted by the impact element.
    [0008]
    8. Weed seed devitalization arrangement (16) according to claim 1, CHARACTERIZED by the fact that the desired impact surface orientation of a weed seed impact element in each stationary circular assembly (20 , 22, 23) be additionally determined by one or more of the following characteristics: a. the rate of air and material flow through the stationary (20, 22, 23) and rotary (34, 36, 37) circular sets of the arrangement; B. the expected size and weight range of ingrained weed seeds; ç. the expected speed range of ingrained weed seeds; d. the shape and orientation of each impact element with respect to the direction of air flow in the vicinity of the element; and. the likelihood that a weed seed will be impacted by the impact element; f. the rate of rotation of one or more of the rotating assemblies (34, 36, 37).
    [0009]
    9. Weed seed devitalization arrangement (16), according to claim 1, CHARACTERIZED by the fact that there is an orientation of weed seed impact elements in each rotating circular assembly (34, 36, 37) which is determined by one or more of the following characteristics: a. the rotation rate of the respective set; B. the rate of air and material flow through the stationary (20, 22, 23) and rotary (34, 36, 37) circular sets of the arrangement; ç. the expected range of the size and weight of ingrained weed seeds; d. the expected range of entrained weed seed speeds; and. the shape and orientation of each impact element with respect to the direction of air flow in the vicinity of the element; f. the likelihood that a weed seed will be impacted by the impact element.
    [0010]
    10. Weed seed devitalization arrangement (16) according to claim 3, CHARACTERIZED by the fact that the driven rotating element (24) is shaped to play air and material and weed seed embedded within the arrangement of stationary circular (20, 22, 23) and rotating (34, 36, 37) assemblies and direct air and material and ingrained weed seed to impact the desired impact surface of a weed seed impact element stationary within 45 ° from the orthogonal plane to the desired impact surface.
    [0011]
    11. Weed seed devitalization arrangement (16) according to claim 1, CHARACTERIZED by the fact that a desired impact surface for two or more weed seed impact elements from a stationary set (20, 22, 23) is one or more from the group of: flat, curved, textured or combinations thereof.
    [0012]
    12. Weed seed devitalization arrangement (16) according to claim 1, CHARACTERIZED by the fact that a weed seed impact element of a circular set is elongated and is one of the rectangular group, square, in profile in cross section.
    [0013]
    13. Weed seed devitalization arrangement (16), according to claim 3, CHARACTERIZED by the fact that there is a space between an external periphery of the driven rotating element (24) and the stationary circular assembly (20, 22, 23) adjacent to weed seed impact elements, so that material longer than the space is sheared and / or folded to become shorter when it extends through the space while the rotating element is driven (24) is rotating.
    [0014]
    14. Weed seed devitalization arrangement (16), according to claim 3, CHARACTERIZED by the fact that the driven rotation element and the rotating circular set of weed seed impact elements are arranged in such a way that rotate at the same rate around a common axis with respect to the rotating assembly (34, 36, 37).
    [0015]
    15. Combine harvester (10) FEATURED by the fact that it includes a weed seed devitalization arrangement (16), as defined in claim 1, located in the harvester (10) in order to receive a part of the air and material discharged at from the air and material discharge area of the harvest (10).
    [0016]
    16. Combine harvester (10) CHARACTERIZED by the fact that it includes a weed seed devitalization arrangement (16), as defined in claim 1, located remotely in relation to the harvester discharge area (10), including additionally: an element to receive and supply a part of the air and material discharged from the harvester (10) for the disposal of devitalization of remote weed seeds.
    [0017]
    17. Method of designing a weed seed devitalization arrangement (16) that receives air and material entwined with weed seeds, the method of designing the arrangement CHARACTERIZED by the fact that it includes the steps of: a) determining the orientation and spacing one or more circular sets of weed seed impact elements, the weed seed impact elements of the stationary assembly (20, 22, 23) having a desired impact surface arranged to impact the seeds of weed passing through the stationary circular set (20, 22, 23) and each impact element being oriented to allow air, material and weed seeds to pass radially between adjacent impact elements; and b) determine the orientation and spacing of one or more rotating circular assemblies (34, 36, 37) of weed seed impact elements, the rotating assembly (34, 36, 37) moves at a rotational speed range around a common axis with respect to a stationary circular assembly (20, 22, 23) of weed seed impact elements and each impact element being oriented to allow air, material and weed seed to pass radially between the adjacent impact elements; and c) determine the orientation of a desired impact surface of an impact element of the stationary assembly (20, 22, 23), being oriented in the opposite direction in which the rotor assembly rotates, in order to impact and direct a grass seed. weeds passing through the stationary set (20, 22, 23) or impacting and directing a weed seed radially inside the stationary set (20, 22, 23) regardless of the width and length of the weed seed.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112015019742B1|2021-02-23|"weed seed devitalization arrangement, harvester and method of designing a weed seed devitalization arrangement
    EP3590319B1|2021-02-17|Weed seed destruction
    US20210127586A1|2021-05-06|Weed Seed Destruction with Rotor and Stator Where the Discharge is Axially Spaced from the Inlet
    US20180249641A1|2018-09-06|Apparatus and method for processing a crop residue
    AU2021100875A4|2021-04-22|Combine harvester with weed seed destruction system
    CA3102729C|2021-12-07|Weed seed destruction device which is movable to allow access to the combine harvester
    同族专利:
    公开号 | 公开日
    US9723790B2|2017-08-08|
    UY35335A|2014-07-31|
    AU2018247235A1|2018-11-01|
    EP2958676B1|2018-05-23|
    AU2014218502B2|2018-07-12|
    ES2781095T3|2020-08-28|
    AU2018247235B2|2020-07-02|
    EP2958676A4|2016-12-07|
    CA2901416A1|2014-08-28|
    ES2678843T3|2018-08-17|
    AU2014218502A1|2015-09-03|
    EP2958676A1|2015-12-30|
    AR094713A1|2015-08-19|
    WO2014127408A1|2014-08-28|
    EP3384754A1|2018-10-10|
    AU2020244587A1|2020-11-05|
    BR112015019742A2|2017-07-18|
    EP3384754B1|2020-02-19|
    US20150373913A1|2015-12-31|
    CA2901416C|2020-12-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    NL6606502A|1965-05-29|1966-11-30|
    US3448933A|1966-10-14|1969-06-10|Melvin C Roy|Apparatus for use with a combine to destroy the germination of weed seeds|
    AT325396B|1973-07-05|1975-10-27|Patent Anst Baustoffe|DISINTEGRATOR|
    DE3540493C1|1985-11-15|1987-04-23|Engelbrecht & Lemmerbrock|Combine harvester with screening out of weeds|
    US5059154A|1990-10-19|1991-10-22|The Board Of Trustees Of The University Of Arkansas|Grain cleaner and destructor of foreign matter in harvesting crops|
    DE4431802A1|1994-09-07|1996-03-14|Claas Ohg|Add-on chopper with wide distributor discharge for material to be shredded, in particular straw / chaff mixture for / on a combine harvester|
    US5597127A|1995-08-04|1997-01-28|Brown David K|Ultrafines coal pulverizer|
    DE19535175A1|1995-09-25|1996-03-21|Jakobi Wilhelm Dipl Ing Fh|Straw chopper using drum with knives|
    CH690709A5|1995-09-25|2000-12-29|Buehler Ag|Process for Impact grinding and impact crusher.|
    DE19753486B4|1997-12-02|2006-02-16|Deere & Company, Moline|chopping|
    DE19910208A1|1999-03-09|2000-09-21|Rolf Hesch|Device for treating or processing substances or mixtures of substances|
    AU771302B2|2000-04-20|2004-03-18|Harvestaire Pty Ltd|Harvest residue destruction system|
    DE10203502A1|2002-01-23|2003-10-30|Boris Isaak|Mill, for grinding solid materials, has a rotor and a stator with rods in a quadratic cross section giving cubic beating edges which effectively grind the feed of particles/fragments until fully worn|
    FI117094B|2003-01-15|2006-06-15|Fractivator Oy|Procedure for the decomposition of organic waste|
    US7887862B2|2007-10-10|2011-02-15|Industrias Centli S.A. De C.V.|Method and apparatus for separating, purifying, promoting interaction and improving combustion|
    CA2715006A1|2008-02-13|2009-08-20|Grains Research And Development Corporation|Weed and volunteer crop seed destruction|
    US8864561B2|2009-08-26|2014-10-21|Deere & Company|Harvested crop residue chopper and distribution arrangement for a combine with an impeller blower whose shape conforms to the contour of the straw chopper|
    DE102009042002A1|2009-09-21|2011-03-24|Claas Selbstfahrende Erntemaschinen Gmbh|Method and distribution of a good flow in a field and chopping and distribution device|
    US8789785B2|2010-08-23|2014-07-29|Lambano Trading Limited|Device for micronization of solid materials and its use|AU2017228663B2|2015-07-14|2018-08-30|Tritana Intellectual Property Ltd.|Weed seed destruction|
    US10492369B2|2015-07-14|2019-12-03|Dean Mayerle|Weed seed destruction|
    WO2017008161A1|2015-07-14|2017-01-19|Dean Mayerle|Weed seed destruction|
    BR112020004799A2|2017-09-11|2020-09-24|Dean Mayerle|destruction of weed seeds|
    BE1023485B1|2016-02-23|2017-04-06|Cnh Industrial Belgium Nv|CHAIN SPREADER WITH SEED BUGS|
    BE1024448B1|2016-07-08|2018-02-27|Cnh Industrial Belgium Nv|EYE STRESTANT SPREADER|
    CN110198628A|2016-09-23|2019-09-03|种子终结者控股有限公司|A kind of multistage hammer-mill and the slag treatment system comprising it|
    US10314232B2|2017-06-21|2019-06-11|Cnh Industrial America Llc|System and method for destroying seeds in crop residue prior to discharge from agricultural harvester|
    WO2019178651A1|2018-03-22|2019-09-26|Seed Terminator Holdings PTY LTD|An impact mill and a residue processing system incorporating same|
    AU2019353541A1|2018-10-04|2021-04-22|Tritana Intellectual Property Ltd.|Weed seed destruction|
    US11240961B2|2018-10-26|2022-02-08|Deere & Company|Controlling a harvesting machine based on a geo-spatial representation indicating where the harvesting machine is likely to reach capacity|
    US11178818B2|2018-10-26|2021-11-23|Deere & Company|Harvesting machine control system with fill level processing based on yield data|
    US10986778B2|2018-10-31|2021-04-27|Deere & Company|Weed seed devitalizer control|
    US11206763B2|2018-10-31|2021-12-28|Deere & Company|Weed seed based harvester working member control|
    AU2020218376A1|2019-02-05|2021-08-26|Seed Terminator Holdings PTY LTD|Impact processing system and a machine and a method of improving nut or fruit orchard hygiene|
    EP3937611A1|2019-03-14|2022-01-19|Tritana Intellectual Property Ltd.|Weed seed destruction|
    US11079725B2|2019-04-10|2021-08-03|Deere & Company|Machine control using real-time model|
    US11234366B2|2019-04-10|2022-02-01|Deere & Company|Image selection for machine control|
    WO2021155444A1|2020-02-05|2021-08-12|Seed Terminator Holdings PTY LTD|An impact material processing device|
    WO2021179059A1|2020-03-12|2021-09-16|Mayerle, Dean|Weed seed destruction|
    法律状态:
    2018-11-13| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-12-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-09-29| B07A| Technical examination (opinion): publication of technical examination (opinion)|
    2021-01-26| B09A| Decision: intention to grant|
    2021-02-23| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/02/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    AU2013900553A|AU2013900553A0|2013-02-19|Weed seed devitalization arrangement|
    AU2013900553|2013-02-19|
    PCT/AU2014/000140|WO2014127408A1|2013-02-19|2014-02-19|Weed seed devitalization arrangement|
    [返回顶部]