• 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:
    An arrangement for the height control of a pre-pressure bar (38) of a harvesting header (20) comprises a control unit (48) and an actuator (42) controlled by the control unit (48) for adjusting the height of the pre-pressure bar (38). The control unit (48) controls the actuator (42) depending on the forward speed and / or on an output value of a sensor (50) which detects the pressure caused by the plants flowing against the pre-pressure bar (38).
    公开号:BE1021977B1
    申请号:E2014/0537
    申请日:2014-07-15
    公开日:2016-02-01
    发明作者:Martin Hüning；Gerrit Steege；Clemens Weitenberg；Hockenbeck Leo Schulze；Jan-Dirk Schild；Daniel Gevers
    申请人:Maschinenfabrik Kemper Gmbh & Co. Kg；
    IPC主号:
    专利说明:

    Arrangement for height control of a pre-print of a header
    The invention relates to an arrangement for controlling the height of a Vordruckbügels a header.
    State of the art
    Forage harvesters are used to harvest agricultural crops, which are usually used as feed for animals or for biogas production. The plants are cut off by means of a so-called Mähvorsatzes, brought together and handed over to the feeder channel of the forage harvester. The intake duct feeds the plants to a chopper drum, which chops them into small pieces, whereupon they are overloaded by a post-accelerator and an ejection chute onto a transporting vehicle traveling alongside.
    The mowing attachments include mowing and collection devices, which are usually designed as rotating drums or chain conveyors and serve for cutting and removal of the plants. Above the mowing and drawing-in devices, pre-press clips are attached, which serve to push the plants standing in the field forward and downwards so that they are picked up by the mowing and drawing-in devices (see DE 100 26 500 A1). The pre-pressure bars cause the plants to be cut standing in an approximately vertical position and not lay flat on the header.
    The height of the pre-pressure bar must be adapted to the height of the crop in a field. If the pre-press bar is placed too high, plants can run underneath it and get into positions where they can be badly cut off. If it is too low, the plants lay over it and, after being separated from their roots by the mowing and gathering device, fall backwards from the header and are lost to the harvesting process. The height adjustment of the Vordruckbügels done in the art manually at the beginning of Emtevorgangs. If it turns out later that it is not optimal, the operator of the forage harvester must descend from his workplace and correct the setting or continue working with the non-optimal height adjustment.
    DE 10 2006 027 343 A1 describes a mowing attachment with a pre-press bar, which can be adjusted remotely in the lateral direction together with a divider tip arranged thereunder.
    Furthermore, DE 24 11 153 A1 describes a height control for the reel of a combine harvester, which detects the height of Erntegutbestandes by photoelectric sensors and the reel höhenverstellt.
    task
    Starting from the prior art, the problem underlying the invention is seen to provide an arrangement for height control of the form-pressure bow of a harvesting attachment for a harvester, which does not have the disadvantages mentioned or to a lesser extent. solution
    This problem is solved according to the invention by the teaching of claim 1, wherein in the further claims features are listed, which further develop the solution in an advantageous manner.
    An arrangement for controlling the height of a Vordruckbügels a header includes a control unit and controlled by the control unit actuator for height adjustment of the form-pressing. In the harvesting operation, the control unit controls the actuator as a function of the forward speed and / or of an output value of a sensor which detects the pressure caused by the plants flowing against the pre-pressure bar.
    In this way, the height of the pre-pressure bar is automatically controlled by the control unit so that the operator of the harvesting machine is relieved of the task of adjusting the height of the pre-pressure bar. The control unit controls the pre-press bar depending on the forward speed and / or takes into account the pressure exerted by the inflowing plants on the form-press bar. If the pressure is greater than a predetermined, expected value, this indicates that many plants are supported on the form pressure bar, so it is then raise. Analogously, a pressure that is less than a predetermined expected value indicates that the plants go under the pressure bar and then lower it. At higher forward speeds, the pre-press bar should be set higher than at lower forward speeds, as at the higher speed, the plants will bend further back in the event of impact with the pre-press bar and therefore have to be supported at a higher height.
    The control unit preferably carries out a basic adjustment of the actuator, in particular before the start of an emptying process and / or during the harvest, which is based on an operator specification and / or an optical detection of the stock density and / or plant stalk thickness and / or the plant height. It is thus made a basic setting, which spends the form-press bracket in a convenient height. During the harvesting operation, the control unit adjusts the actuator from the default setting depending on the propulsion speed and / or the sensor value, i. it lowers or raises the form-fitting clip when the sensor reading or speed indicates that height adjustment is appropriate.
    embodiment
    In the drawings, an embodiment of the invention described in more detail below is shown. It shows:
    Figure 1 is a schematic side view of a forage harvester with a harvesting attachment, on which a height-adjustable in accordance with the invention Vordruckbügel is attached, and
    Fig. 2 is a flow chart according to which the control device works for the automatic adjustment of the height of the form-pressing bracket.
    A self-propelled forage harvester 10 shown in Figure 1 builds on a frame 12 carried by powered front wheels 14 and steerable rear wheels 16. The operation of the forage harvester 10 takes place from a driver's cab 18, from which a harvesting attachment 20 suitable for harvesting stalk-like plants can be viewed. By means of the harvesting attachment 20, which in the illustrated embodiment is a row-independent maize header with mowing and collection drums rotating around the vertical axis (cf EP 0 760 200 A1) or with chain conveyors (see DE 10 2005 004 004 A1), picked up from the ground Good, z. As corn, sunflowers or the like, is fed by upper pre-press rollers 30 and lower pre-press rollers 32 a chopper drum 22, which chops it into small pieces and gives it a Nachbeschleunigungseinrichtung 24. The crop leaves the harvester 10 to a trailer traveling by way of an adjustable in its position discharge 26. Between the chopper drum 22 and the conveyor 24 extends a conditioning with two conditioning rollers 28, 28 ', through which the material to be conveyed the conveyor 24 tangentially is supplied. In the following direction statements - unless otherwise mentioned - as the front, back, left and right to the forward direction V of the harvester 10, which runs in the figure 1 from right to left.
    Between the Erntegutaufnahmevorrichtung 20 and the chopper drum 22, the material is transported through a feed conveyor with lower conveyor rollers 32 and upper conveyor rollers 30 which are mounted within a feed housing 36. The conveyor rollers 30, 32 are also referred to as pre-press rollers, since the upper conveyor rollers 30 are biased by spring force against the lower conveyor rollers 32 so that the Emtegut between the conveyor rollers 30, 32 is pre-compressed and can be cut better. The chopping blades distributed around the circumference of the chopper drum 22 cooperate with a counterknife to chop the material.
    Above the header attachment 20, a plurality of side-by-side pre-press bars 38 are attached, which extend over the working width of the header 20 and serve to support the plants in an approximately vertical orientation for cutting off (see DE 100 26 500 A1). The pressure plate 38 is connected via a holder 40 with an actuator 42 in the form of a hydraulic cylinder, which is controlled by a valve assembly 44. The actuator 42 is arranged to adjust the height of the pre-pressure bracket 38 above the ground. The valve assembly 44 is supplied by a present on board the forage harvester 10 pump 46 with hydraulic fluid, but also mounted on the header 20 and could be driven by the mechanical drive train from the forage harvester 10 ago.
    A controller 48 is electrically connected to the valve assembly 44 and a sensor 50 which is inserted into the holder 40 and detects the horizontal, transmitted from the oncoming plants on the form pressure bracket 38 forces. The control device 48 is also connected to an operator input device 52 mounted in the cabin 18 at the operator workstation and optionally to an optical detection device 54 in the form of a camera or a laser scanner.
    The control device 48 operates according to the flowchart shown in FIG. After the start in step 100, a basic adjustment of the height of the form-pressing bracket 38 is made in step 102 (before the beginning of the harvest). This default setting may be such that the operator inputs, via the operator input device 52, a desired height of the pre-press bar 38, e.g. in cm or in steps. It would also be conceivable for the operator to increase the density of the crop (eg by selecting a level from "low", "medium" or "high") and / or straw (eg by selecting a level from "low", "medium"). or "high") and the height of the plant population (eg by selecting a level of "low", "medium" or "high" or entering a value in cm) and the controller 48 derives the setting of the actuator 42 therefrom. The density of the plant population and / or the plant stalk thickness and / or the height of the crop can be derived alternatively to an operator input from signals of the optical detection device 54, which works with a camera and an image processing system or a laser scanner (see DE 101 30 665 A1) ,
    In step 104, the control device 48 causes the actuator 42 via the valve assembly 44 to spend the form-press bracket 38 in the height determined in step 102. In this case, reference can be made to feedback signals from a sensor (not shown) for detecting the current position of the actuator 42 or the form-pressing bracket 38 or the holder 40 relative to the frame of the header 20.
    This is followed by step 106, in which the forward speed of the forage harvester 20 and the value of the sensor 50 are detected. In step 108, it is queried whether the pressure detected by sensor 50 is greater than a first pressure threshold value and / or the forward speed (transmitted via a vehicle bus to control device 48) is greater than a first speed threshold value. If so, step 110 follows, in which the controller causes the actuator 42 to lift the form-stop bracket 38. Otherwise, step 112 follows, in which it is queried whether the pressure detected by the sensor 50 is less than a second pressure threshold value and / or the forward speed is less than a second speed threshold value. If this is the case, the step 114 follows, in which the control device causes the actuator 42 to lower the form-press bracket 38. Otherwise, step 106 follows again.
    In this way, the form-press bracket 38 is first moved to a basic position, which leads, as expected, to useful work results. Should the pressure on the formbar be greater or less than expected (i.e., as dictated by the first and second pressure thresholds), the formbar is raised or lowered to improve operation. Likewise, the pre-press bar is lowered at lower speeds and raised at higher speeds.
    The basic setting, unlike that shown in FIG. 2, can also take place during the harvesting operation, i. steps 110, 112 and 114 return to step 102 again. Also, the thresholds of steps 108 and 112 may be fixed or modifiable by the operator via the operator interface. Of course, the automatic described can also be switched off, so that the operator can then specify the height of the form-pressing bracket 52 via the operator input device.
    权利要求:
    Claims (3)
    [1]
    claims
    An arrangement for height control of a Vordruckbügels (38) of a header (20), comprising a control unit (48) and one of the control unit (48) controlled actuator (42) for height adjustment of the Vordruckbügels (38), wherein the control unit (48) configured is to control the actuator (42) depending on the forward speed and / or of a Ausgangswärt a sensor (50) which is adapted to detect the pressure caused by the against the form-fitting bracket (38) inflowing plants.
    [2]
    2. Arrangement according to claim 1, wherein the control unit (48) is configured to perform a basic adjustment of the actuator (42) prior to the beginning of a harvesting process and / or during harvesting, based on an operator input and / or an optical detection of the stocking density and / or Plant stalk strength and / or the plant height based and adjust the actuator (42) starting from the basic setting depending on the propulsion speed and / or the sensor value during the harvesting operation.
    [3]
    3. Self-propelled forage harvester (10) with a header (20) and an arrangement according to claim 1 or 2.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE102013214561A1|2015-01-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2900841A1|1979-01-11|1980-07-17|Alois Assfalg|Automatic winch level adjustment system on combine harvester - has IR transmitters and receivers at two levels providing signals from crop height|
    EP1510123A1|2003-08-26|2005-03-02|CLAAS Selbstfahrende Erntemaschinen GmbH|Method and device for controlling a height-adjustable cutting device|
    US20110154793A1|2009-12-30|2011-06-30|Curtis Ernst|Forage chopper header for harvesting both standing and down crop material|
    DE2411153A1|1974-03-08|1975-09-25|Fahr Ag Maschf|Crop properties measuring probe for combine harvester - consists of one or more feelers testing height, thickness, humidity and ripeness|
    DE19531918B4|1995-08-30|2005-02-24|Maschinenfabrik Kemper Gmbh & Co. Kg|Machine for row-independent mowing and shredding of corn u. Like. Stem-like crop|
    DE10026500A1|2000-05-27|2001-11-29|Kemper Gmbh Maschf|Harvester|
    DE10130665A1|2001-06-28|2003-01-23|Deere & Co|Device for measuring the amount of plants in a field|
    DE102005004004A1|2005-01-27|2006-08-17|Maschinenfabrik Bernard Krone Gmbh|Self-propelled agricultural harvester|
    DE102006027343A1|2006-06-13|2007-12-20|Maschinenfabrik Kemper Gmbh & Co. Kg|Harvesting machine for cropping plants with stalks has a frame, a device for drawing in and reaping and a separator tip for adapting to different spaces between rows of crops|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013214561.6A|DE102013214561A1|2013-07-25|2013-07-25|Arrangement for controlling the height of a form-pressing bracket of a header|
    DE132145616|2013-07-25|
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