• 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:
    Linear drive ripper which is flat and which comprises in its interior a drive assembly (2) with a crankshaft (6) and a connecting rod-counterweight assembly (12) linked to the crankshaft (6) and configured to move linearly along the length of a receptacle (9) arranged in the rejºn (1). This drive assembly allows the ripper to move with high frequencies of vibration and keeping a very small ripper volume because it is totally flat and all the elements necessary for its movement are inside it. It also comprises a transmission assembly and a damping assembly. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2644886A1
    申请号:ES201630709
    申请日:2016-05-31
    公开日:2017-11-30
    发明作者:Juan Manuel ARGOTE
    申请人:Talleres Betono S A；Talleres Betono Sa；
    IPC主号:
    专利说明:

    OBJECT OF THE INVENTION
    The present invention is framed in the technical field of percussion tools. More specifically, it is a linear drive ripper with said drive arranged inside. In addition, the ripper is flat and the drive system it comprises generates a high frequency of vibration. BACKGROUND OF THE INVENTION
    In the state of the art, the use of energy caused by eccentric masses when rotating and allowing the displacement of a grating to drill a rock, ground or the like is widely used.
    In these cases, the vibration that must be produced on the ripper to produce the breakage of the rock is achieved by rotating two axes with off-center masses. When these masses coincide at their highest and lowest point, the movement of the ripper occurs. In addition, this movement occurs at high revolutions, thus achieving the necessary vibration for said rock breakage. During the rest of the eccentric mass race, the forces are compensated and it is not possible to harness their movement energy.
    Another disadvantage of this type of vibrating rippers with eccentric masses is that they protrude from the body of the ripper grille.
    Additionally, another problem associated with the state-of-the-art ripper is that the vibrations are transmitted to the carrier equipment to which the ripper is connected, since the eccentric vibrating masses create two equal force components, one up and one down. This can cause premature wear of any of the elements of the carrier machine and transmit unwanted vibrations to the operator of the carrier machine.
    Solutions that propose the use of hydraulic hammers are also known from the state of the art. In these solutions the ripper comprises at least one groove in which the hydraulic cylinder is disposed, which protrudes from both sides of the ripper.
    A disadvantage associated with this type of solutions is that they do not achieve a vibration frequency as high as that achieved with traditional ripper driven by the rotation of two eccentric masses. Another known disadvantage of this type of equipment is that, as the hydraulic hammers protrude from the sides of the ripper, the penetration of the same is difficult to be wider than the grate. DESCRIPTION OF THE INVENTION
    The present invention proposes a linear drive ripper that solves the previously raised technical problems associated with the state of the art ripper.
    A linear drive ripper is described which comprises a flat grid, within which is a drive assembly that causes a high frequency of unidirectional vibration. So the ripper is shaped like a flat grating.
    In the lower section of the ripper it comprises a wear boot or tip, attached to the grille. The tip is the element that comes into contact and drills the ground, the rock, etc. Said tip is interchangeable by means of a tensioning shaft system that holds it and keeps it in permanent contact with the grille.
    The ripper also comprises a coupler or housing that is a piece that allows the union with the carrier. The coupler is configured to receive bolts or shafts connecting to said carrier. Between the bolts and the coupler there are some damping elements. These damping elements prevent the vibrations of the ripper from passing to the carrier equipment to which it joins for operation.
    The specific configuration of the ripper that is proposed, by allowing a high frequency of vibration, allows to improve the behavior and efficiency of the ripper. An essential advantage of the present invention is that the resulting force component that pushes the ripper down (towards the ground, rock, etc. that is to be drilled) is much greater than the magnitude of the resulting force component in the opposite direction. This allows more energy to be used.
    The drive assembly comprises a crankshaft, and a connecting rod-counterweight assembly. In one embodiment, the connecting rod and the counterweight are two different parts linked to each other and in another embodiment it is a single piece. In any case, the counterweight, only
    or with the connecting rod (if it forms a single piece with it), it moves linearly along a receptacle inside the grille.
    All the elements of the drive assembly are arranged inside the grille, without protruding from either side of the grille. In addition, the linear movement of the biela counterweight assembly is carried out in the same direction in which the attack point is located, so that the force is transmitted completely in that direction, without dispersion and therefore without energy losses.
    Likewise, the ripper of the present invention may comprise a transmission assembly for connecting the crankshaft with an engine responsible for controlling its movement.
    In an exemplary embodiment, the ripper comprises a plurality of bearings, arranged in the recess in the area where the crankshaft is located and may comprise a lubrication system for said bearings. In cases where there is a lubrication system, it can comprise ducts that run inside the connecting rod-counterweight assembly through which the oil in the receptacle passes to the bearings when the counterweight assembly makes a downward movement in said receptacle.
    One of the advantages of the linear drive ripper of the present invention is that the drive assembly is disposed inside the grille and it moves in block. Therefore, there are no additional moving parts to the ripper since the moving parts of the drive assembly are completely housed inside said ripper.
    This supposes an advantage over rippers of the state of the art which comprise, for example, hammer spades at their end. With the present invention, clearances or misalignments between the movement of the ripper and the end that hits the rock (or the corresponding surface on which the ripper works) are avoided.
    Likewise, the described ripper is free of gears, forks, carrier bolts and balls to absorb vibration energy. Neither distribution block nor vibration boxes are necessary. In addition, the proposed ripper has a low noise level associated with it.
    The specific configuration of the ripper allows to reduce the weight of the ripper up to 25% compared to the ripper of the prior art. In addition, this configuration allows the ripper to be manufactured with a more ergonomic design, less bulky and less than conventional rippers. A penetration length of the grating of 25% more is achieved.
    Likewise, the grating is lower from the coupler so that the lever arm necessary for the excavator in which it is used may be smaller. This also decreases fuel consumption.
    The combination of these features allows the ripper to be easier, cheaper and faster to manufacture. DESCRIPTION OF THE DRAWINGS
    To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:
    Figure 1.- Shows a perspective view of the linear drive ripper.
    Figure 2A.-Shows a sectional view of the linear drive ripper in which the drive assembly disposed in the same grid can be seen in an embodiment where the connecting rod and the counterweight are two different parts.
    Figure 2B.-Shows a sectional view of the linear drive ripper in which the drive assembly disposed in the grating itself can be seen in an embodiment where the connecting rod-counterweight assembly is a single piece.
    Figure 3A.-Shows a front view of the linear drive ripper in which it is seen that the grid is completely flat.
    Figure 3B.-Shows a sectional view of the linear drive ripper shown in Figure 3A in which the fully integrated drive assembly can be seen inside the grille.
    Figure 4.- Shows a sectional view of the linear drive ripper, similar to that shown in Figure 3B in which the lubrication system can be seen.
    Figure 5.- Shows a sectional view of the linear drive ripper, by the plane of the bolts that connect the ripper to the coupler to appreciate the damping blocks. PREFERRED EMBODIMENT OF THE INVENTION
    An example of embodiment of the present invention is described below with the aid of Figures 1 to 5.
    The linear drive ripper (figure 1) comprises a reel (1) inside which is a drive assembly (2) that is responsible for generating the vibration movement of the reel itself (1) and a coupler (3). The grille and the coupler (3) are connected together by bolts (4) surrounded by damping elements (10).
    Figure 2A-2B shows a section of the linear drive ripper in which the components of the drive assembly (2) can be seen. Said components of the drive assembly (2) are a crankshaft (6) and a crank-counterweight assembly (12), linked to said crankshaft (6) and configured to move linearly along a receptacle (9) arranged in the grate (1). That is, the vibration generator is inscribed in the grid itself (1).
    An exemplary embodiment is shown in FIG. 2A in which the counterweight crankset (12) comprises a connecting rod (7) and a counterweight (8) which are two different elements, interconnected to transmit the movement from one to another. An example of embodiment is shown in Figure 2B in which the connecting rod-counterweight assembly (12) is a single piece.
    In addition, as can be seen, for example, in Figure 3A, another essential characteristic of the grid (1) is that it is completely flat. The drive assembly (2) is fully integrated inside the recess (1) without protruding from any of its faces. This makes it possible to greatly reduce the volume of the grate (1) and its weight and make it more ergonomic. This allows the ripper to penetrate more deeply.
    The ripper also includes an attack point (5) with which the stone drills the ground or the corresponding surface on which it is working. Said attack tip (5) is arranged at the distal end of the grate (1).
    Preferably, as shown for example in Figure 2B, the receptacle (9) is aligned with the attack tip (5) in such a way that the movement of the counterweight assembly (12) is made in a direction coinciding with the tip of attack (5). In this way, the movement of movement of the crank-counterweight assembly (12) that generates the vibration of the grille (1) is transmitted entirely to the attack tip (5). There is no loss of energy due to changes of direction in the application of force.
    Figure 3B shows the drive assembly (2) from another perspective, obtained by sectioning the ripper in a direction perpendicular to that chosen in Figures 2A-2B.
    An important advantage of the proposed configuration for the linear drive ripper of the present invention is that the energy losses associated with the rotational movement of the eccentric masses in the state of the art ripper are avoided. The movement of the connecting rod-counterweight assembly (12) is completely linear, up and down, along the receptacle (9).
    Another advantage associated with the present invention is that the total force with which the vibrations are generated is the weight of the crank-counterweight assembly (12) of the drive assembly. In the embodiment in which the connecting rod-counterweight assembly (12) comprises an independent connecting rod (7) and a counterweight (8), the weight is the sum of the mass of the counterweight (8) and of the mass of the connecting rod (7). This drive assembly (2) allows obtaining high vibration frequencies that cannot be obtained with other prior art solutions such as those used by hydraulic breakers.
    In a preferred embodiment of the invention of the linear drive ripper the drive assembly (2) is connected to a hydraulic motor that receives hydraulic power from the carrier.
    As previously described, higher vibration frequencies are achieved with the present invention than with other prior art solutions, so it is essential to place bearings (14) in the grid (1).
    The ripper preferably comprises two bearings (14), one on each side of the crankshaft (6) and placed on the sides of the grille (1) so that the breaking forces produced by the drive assembly (2) act directly on it and in the center of the attack tip (5). Also, in an exemplary embodiment, the ripper comprises a third bearing
    (14) arranged under the receptacle (9).
    An embodiment of the invention is shown in Figure 4 in which the connecting rod (7) additionally comprises conduits disposed therein that connect the receptacle (9) with the bearings (14). That is to say, the lubrication of the bearings (14) and the friction parts is carried out by means of the pressure exerted on the oil itself when the connecting rod-counterweight assembly (12) is lowered through the receptacle (9). This pressure is used to redirect the oil through some holes to all bearings (14).
    Therefore, the lubrication is carried out when the volume of the housing in which the lubricant is located decreases during the downward movement of the connecting rod-counterweight assembly (12). At this time the oil rises through a channel (11) practiced in the connecting rod-counterweight assembly (12). At the beginning of the channel (11) there is a non-return valve (13) and it is also divided into two diffusers (15) so that the liquid coincides in the highest areas to be lubricated and then descends by weight lubricating the rest. In this way the alternative longitudinal movement of the crank-counterweight assembly (12) of the ripper is used to guarantee the self-lubrication of the ripper components itself.
    In FIG. 5, another embodiment of the invention is shown in which the ripper also comprises a plurality of damping blocks (10). Said figure 5 represents the upper section of the ripper in which the coupler (3) for attachment of the ripper to the carrier equipment is appreciated.
    In this embodiment, the grate (1) comprises in its upper section two bolts (4) configured to make the connection between the grate (1) and the coupler (3). Around said bolts (4) there are damping blocks (10). These bolts (4) are preferably offset to increase the damping stroke. This damping system with damping blocks (10) and off-center bolts allows the damping to be long, in every way, even in the air.
    The coupler (3) preferably comprises two transverse tubes that form a lateral resistance cross and are crossed by two bolts (4), with the off-center ends, in which they adjust to the damping elements (10). Said coupler has an arrow greater than the grid (1) due to the eccentricity of the ends of the bolts (4)
    When a vertical effort is made downwards or upwards of the carrier, the bolts (4) rotate by their eccentricity. This means that these reactions are not linear but that a torsion is created by increasing the damping power of the damping elements (10). That is to say, the absorption of the vibrations is realized by means of the offset of the bolts (4) that are adjusted by means of the damping elements
    (10) and thus the reaction forces do not have a direct impact on the excavator unless they are absorbed by said damping elements (10).
    The coupler (3) is necessary to correctly absorb the vibrations and also to allow the ripper to be held from the carrier (excavator) by means of a standardized hat.
    权利要求:
    Claims (7)
    [1]

    1.-Ripper linear drive characterized by comprising:-a grille (1) that is flat and which comprises inside a drive assembly (2)wherein said drive assembly (2) in turn comprises:
    - a crankshaft (6);
    - a connecting rod-counterweight assembly (12) linked to the crankshaft (6) and configured to
    move linearly along a receptacle (9) disposed in the grate (1); -a coupler (3) connected to the recess (1) by an upper section thereof and configured to allow the ripper to be attached to a carrier machine; -a few bolts (4) of union between the coupler (3) and the grid (1); -a cushioning elements (10) arranged around the bolts (4) configured to absorb the vibrations of the grille (1) and prevent them from passing to the carrier machine to which the ripper is attached -a attached attack tip (5) to one end of the grate (1) in a lower section thereof.
    [2]
    2.-Linear drive ripper according to claim 1 characterized in that the connecting rod-counterweight assembly (12) is formed by a connecting rod (7) linked to the crankshaft (6) and by a counterweight (8) linked to the connecting rod (7) and configured to move linearly along the receptacle (9).
    [3]
    3.-Linear drive ripper according to claim 1 characterized in that the connecting rod-counterweight assembly (12) is a single piece.
    4-Ripper linear drive according to claim 1 characterized in that the receptacle
    (9) is aligned with said attack tip (5) such that the offset of the counterweight (8) is made in a direction coincident with the attack tip (5).
    [5]
    5.-Linear drive ripper according to claim 1 characterized in that it comprises a transmission assembly that links the crankshaft (6) with a motor that controls its movement and that receives hydraulic power from the carrier.
    [6]
    6.-Linear drive ripper according to claim 1 characterized in that it comprises a plurality of bearings (14) arranged in the grille (1) where at least two bearings
    (14) are each arranged on one side of the crankshaft (6).
    [7]
    7. A linear drive ripper according to claim 6, characterized in that it additionally comprises a third bearing (14) arranged under the receptacle (9).
    [8]
    8.-Linear drive ripper according to claim 6 characterized in that it comprises a lubrication system comprising a channel (11) practiced in the counterweight linker assembly (12), a non-return valve (13) disposed at one end of said channel (11 and
    10 diffusers (15) arranged at the other end of the channel (11) and connect the receptacle (9) with the bearings (14).
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    同族专利:
    公开号 | 公开日
    ES2644886B1|2018-09-13|
    WO2017207852A1|2017-12-07|
    WO2017207852A4|2018-02-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4229044A|1979-02-12|1980-10-21|Caterpillar Tractor Co.|Clevis-mounted impact ripper|
    EP0295563A2|1987-06-17|1988-12-21|Yamada Juki Co., Ltd.|Rotary impacting apparatus|
    WO2011092377A1|2010-01-29|2011-08-04|Sandvik Mining And Construction Oy|Method and arrangement for lubricating drill shank of rock drilling machine|
    ES1077883U|2012-10-03|2012-10-23|Javier Aracama Martinez De Lahidalga|Hydraulic percutor device for excavating machines |
    US4257648A|1979-04-09|1981-03-24|Bodine Albert G|Non-resonant cyclic drive system employing rectification of the cyclic output|
    AU550165B2|1982-03-01|1986-03-06|Allied Steel and Tractor Products Inc.|Synchronous vibratory impact hammer|
    KR101025030B1|2010-09-15|2011-03-25|박정열|Low noise type hydraulic breaker|
    KR101379831B1|2012-01-19|2014-04-02|주식회사 지비|Shock absorbers for a vibratory ripper|
    KR101268417B1|2012-07-20|2013-05-28|박철민|Vibration ripper for heavy equipment|
    KR101236510B1|2012-08-27|2013-02-21|주식회사 자브|Shock absorbing device of vibration ripper|
    法律状态:
    2018-09-13| FG2A| Definitive protection|Ref document number: 2644886 Country of ref document: ES Kind code of ref document: B1 Effective date: 20180913 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630709A|ES2644886B1|2016-05-31|2016-05-31|LINEAR DRIVE RIPPER|ES201630709A| ES2644886B1|2016-05-31|2016-05-31|LINEAR DRIVE RIPPER|
    PCT/ES2017/070379| WO2017207852A1|2016-05-31|2017-05-31|Linear drive ripper|
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