• 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:
    Counter-knife device (10) and method for setting a counter-knife, the counter-knife device provided for a chopping unit (1) of an agricultural machine being an elongated counter-knife (11) for cooperation with a chopping drum (3) of the chopping unit, a base (5) for stationary arrangement in the Chopping unit, a shearbar carrier (15) for securing the shearbar, the shearbar carrier being movably mounted on the base in order to enable the shearbar to be adjusted radially towards and away from the chopping drum, an adjustment device (30) with at least one adjustment unit (31 ), which has an adjusting lever (32) which is movably supported on the base and connected to the counter-blade carrier so that the radial adjustment of the counter-blade carrier can be driven with an adjusting movement of the adjusting lever, and has a clamping device (40) with at least one clamping unit it (41), which clamping means which are set up to produce a clamping connection between the actuating lever and the base by means of an actuating force in order to inhibit the actuating movement of the actuating lever, and release means which are set up to release the clamping connection between the actuating lever and the base by means of an actuating force to enable the adjusting movement of the adjusting lever.
    公开号:BE1023253B1
    申请号:E2015/5733
    申请日:2015-11-10
    公开日:2017-01-11
    发明作者:Gregor Wehner；Stefan Birkhofer
    申请人:Claas Saulgau Gmbh；
    IPC主号:
    专利说明:

    Counter cutting device and method for setting a Geaen cutting edge
    The invention relates to a counter cutting device for a Häckselaggregat an agricultural machine and a method for adjusting a counter-blade of a Häckselaggregats with respect to a chopper drum.
    Agricultural machines such as in particular forage harvesters may have a chopping unit, which is provided with a knife drum on which circumferentially fixed and thus rotating cutting blade with a stationary elongated and especially strip-shaped counter cutting edge. Crop material (such as corn plants) receiving an engagement region formed by a rotating cutterhead and counterblade is chopped by the interaction of the cutting blades attached to the rotating cutterhead with the counter cutter. The knife drum is therefore commonly referred to as a chopper drum. In order to be able to position the counterknife in the chopping unit, the counterknife is usually integrated in a counter-cutting device.
    Such a counter cutter is e.g. known from DE 196 52 656 A1 and has a base for stationary arrangement in the chopper, a counter-blade holder for receiving the counter-blade and an adjusting device. The counter-cutting carrier is pivotally mounted on the base to allow a radial chopper drum towards and away from this adjusting the counter-blade received on the counter-cutter carrier. The adjusting device has for each longitudinal end of the counter-blade or the counter-blade carrier on an adjustment, which includes a lever which is mounted adjustable movable on the base and connected to the counter-cutting carrier, so that with an adjusting movement of the adjusting lever, the radial displacement of the counter-blade carrier is drivable.
    One way of adjusting the position of a counter-cutting means along a plane displacing the counter-blade is described for example in DE 35 35 902 C2.
    In order to protect the counter-blade in the chopping process against vibration excitation, clamping is usually provided in the adjustment system for each longitudinal end of the counter-blade. If the counter-blade is to be radially adjusted in its position with respect to the chopper drum, this must be done by overcoming a clamping force or friction force of the clamping.
    However, a problem with such a clamping is that any fluctuations in the coefficient of friction at the nip, e.g. can cause different adjustment of the counter blade. This can lead to a distortion of the adjustment system. In addition, in this solution, the fact that the clamping force should be as high as possible to reduce the vibrations in the adjustment, contrary to the fact that the clamping force in turn may not be too large, otherwise the counter-blade can not be adjusted. In conclusion, with this conventional solution, a secure holding and clamping of the counter-blade in the chopping process and a sensitive adjustment of the counter-blade during the setting process are opposed.
    The invention is therefore based on the object to provide a counter cutting device for a Häckselaggregat an agricultural machine, which allows a secure holding and bracing the counter blade in the Häckselprozess and still a sensitive adjustment of the counter blade during the adjustment. The invention is also based on the object of providing a method for setting a counter-blade of a chopper unit with respect to a chopper drum thereof.
    The o.g. Problems are solved with a counter cutting device according to claim 1 and with a method according to claim 8, respectively. Further developments of the invention are defined in the respective dependent claims.
    According to the invention, there is provided a counter cutting device for a chopping unit of an agricultural machine. The counter-cutting device has an elongated and in particular strip-shaped counter-blade for cooperating with circumferentially arranged on a chopper drum chopping unit cutting blades, a base for stationary arrangement in the chopping unit, a counter-blade holder for attaching the counter-blade, an adjustment and a clamping device.
    The counter-cutting carrier is movably mounted on the base to allow a radial towards the cutterhead and away from this adjusting the counter-blade mounted on the counter-cutter carrier. The adjusting device comprises at least one adjusting unit, which has an adjusting lever, which is mounted adjustable movable on the base and connected to the counter-cutting carrier, so that with an adjusting movement of the adjusting lever, the radial displacement of the counter-blade carrier can be driven.
    The clamping device comprises at least one clamping unit, which clamping means, which are adapted to establish a clamping connection between the actuating lever and the base by means of a force to inhibit the actuating movement of the actuating lever, and release means, which are arranged by means of a force the clamping connection between the Lever and the base to release to release the actuating movement of the control lever.
    Characterized in that according to the invention, the clamping means are provided, the counter-blade carrier and thus the counter-blade in the chopping process can be securely held and clamped. Due to the fact that according to the invention
    Release means are provided, the counter-blade carrier and thus the counter-blade during the adjustment under dissolved clamp connection and thus be sensitively adjusted.
    According to one embodiment of the counter-cutting device according to the invention, the clamping means and the release means for providing their respective actuating force for producing the clamping connection or releasing the clamping connection in each case at least one hydraulic cylinder and / or at least one spring and / or at least one piezoelectric element.
    In other words, according to the invention, a clamping force and a releasing force are respectively generated by at least one of a hydraulic pressure, a spring force, and a piezoelectric element deformation caused by electric current. These types of generation of the clamping force and the release force can be particularly easily and advantageously integrated into an agricultural work machine, since these usually already has a hydraulic system and an electrical system and feathers have the required robustness for field use.
    Preferably, the at least one spring is designed as a plate spring device.
    According to a further embodiment of the counter-cutting device according to the invention, the counter-cutting carrier is displaceably mounted on the base along a plane in order to allow the radial adjustment of the counter-cutting edge.
    According to yet another embodiment of the counter-cutting device according to the invention, the counter-cutting carrier is pivotally mounted on the base to allow the radial displacement of the counter-blade.
    According to one embodiment of the counter cutting device according to the invention, the at least one clamping unit also has a pull rod, coupling means and stop means. The pull rod is mounted longitudinally movably on the base via a linear bearing. The clamping means are operatively connected to the pull rod to drive the pull rod by means of its actuating force in a first direction of movement in the linear bearing. The release means are in operative connection with the pull rod in order to drive the pull rod by means of its actuating force in a second direction of movement in the linear bearing opposite to the first direction of movement.
    The coupling means are adapted to couple the pull rod when moving in the first direction of movement with the adjusting lever to drive the adjusting lever in the first direction of movement. The stop means are provided so that the adjusting lever when moving in the first direction of movement of the stop means can be brought to the pressure system, so that the clamping connection between the adjusting lever and the base is made.
    This embodiment of the invention realizes in a robust and simple way the possibility of clamping the adjustment system of the counterknife in the chopping process and the possibility of loosening the clamp for a sensitive adjustment of the counterknife.
    According to a further embodiment of the counter-cutting device according to the invention, the pull rod has a first drive surface facing the second movement direction and a second drive surface facing the first movement direction. The linear bearing defines a chamber in which the two drive surfaces of the pull rod are arranged such that the first drive surface faces a first end surface of the chamber and the second drive surface faces a second end surface of the chamber opposite the first end surface.
    The clamping means are arranged between the first drive surface and the first end surface, so that the actuating force of the clamping means of the first drive surface can be acted upon. The release means are arranged between the second drive surface and the second end surface, so that the actuating force of the release means of the second drive surface can be acted upon.
    By arranging the clamping means and the release means in a common chamber of the linear bearing, the clamping unit can be made particularly compact and the clamping means and the release means are also protected against environmental influences such as dirt.
    According to yet another embodiment of the counter-cutting device according to the invention, the first and the second drive surface of the pull rod are arranged on a first longitudinal end portion of the pull rod. In this case, a second longitudinal end portion of the pull rod opposite the first longitudinal end portion can be coupled via the coupling means when the pull rod is moved with the adjusting lever in the first direction of movement. The stop means have an outer surface of the linear bearing facing the second direction of movement.
    This embodiment of the invention offers a particularly simple implementation possibility for the coupling means and the stop means.
    According to the invention there is also provided a chopping unit comprising a rotatably mounted chopper drum having cutting blades circumferentially disposed thereon, and a counter cutting device according to one, several or all previously described embodiments of the invention in any conceivable combination.
    According to the invention, there is also provided a method for adjusting a counterknife of a chopping unit with respect to a chopper drum thereof, in particular for setting a counterknife of a chopping unit by means of a counter cutting device according to one, several or all previously described embodiments of the invention in any conceivable combination.
    The method according to the invention has at least the steps of: releasing a clamping of a control lever connected to the counter-blade for adjusting it; Adjusting a position of the bedknife with respect to the chopper drum by performing an actuating movement of the control lever; and restore the clamping of the control lever. The fact that the clamping is released before adjusting the position of the counter-cutting, the adjustment of the counter-blade can be performed easily, sensitively and without tension. The fact that the clamping is restored after the adjustment of the position of the counter blade, can be counteracted in the chopping process vibrations in the adjustment system.
    According to one embodiment of the method according to the invention, the adjustment of the position of the counter-cutting edge is carried out by means of displacement along a plane and / or by pivoting about a pivot axis of the counter-blade.
    In the following the invention will be described with reference to preferred embodiments and with reference to the accompanying figures.
    1 shows a perspective partial view of a chopping unit according to an embodiment of the invention.
    FIG. 2 shows in front view a sectional view of a part of the chopping unit of FIG. 1.
    Hereinafter, a chopping unit 1 according to an embodiment of the invention will be described with reference to FIGS. The chopping unit 1 is in an agricultural machine (not fully shown) as integrated in particular a forage harvester.
    The chopper unit 1 has a drum housing 2, a chopper drum 3 (shown schematically in FIG. 1 with dashed lines), which is rotatably mounted about an axis of rotation A1 in the drum housing 2 and at the periphery a plurality of cutting blades 4 (in Fig. 1 schematically with dashed lines shown) are mounted, and a counter-cutting device 10 with a strip-shaped elongate counter-blade 11 for cooperation with the cutting blades 4.
    The counter-cutting device 10 also has a strip-shaped elongate counter-blade 11 and a base element 20. The base element 20 and the drum housing 2 form respective parts of a base 5 of the chopper unit 1 and are arranged stationarily in the chopper unit 1 or the working machine.
    The counter-cutting support 15 is adapted for fastening receiving the counter-blade 11 and movably mounted on the base 5 and in particular on the base member 20 to allow a radial chopping drum 3 toward and away from this, the counter-blade 11 mounted on the counter-cutting support 15.
    More precisely, the counter-blade 11 has two opposite longitudinal ends 11.1, 11.2 and is bolted to the counter-cutting support 15 by means of two screws 12 at its two longitudinal ends 11.1, 11.2 with the counter-cutting support 15. Between the longitudinal ends more screwings can be provided, preferably at least one more in the middle. The counter-blade carrier 15 is mounted on the base 5 and in particular on the base element 20 via an arrangement of pivot bearings 21, 22 in such a manner that the counter-blade carrier 15 is pivotable about a pivot axis A2 in order to allow radial displacement of the counter-blade 11. The pivot axis A2 of the counter-blade carrier 15 extends parallel to the axis of rotation A1 of the cutterhead. 3
    The counter-cutting device 10 also has an adjusting device 30 for driving the radial adjustment of the counter-blade 11. More precisely, the adjusting device 30 has on both sides of each of the two longitudinal ends 11.1, 11.2 of the counter-blade 11 an adjusting unit 31, wherein the two adjusting units 31 are identical to one another.
    Each of the two adjusting units 31 has an adjusting lever 32, which is movably mounted on the base 5 and in particular on the drum housing 2 and which is connected to the counter-blade carrier 15, so that with an adjusting movement of the adjusting lever 32, the radial displacement of the counter-blade carrier 15 can be driven.
    More precisely, the adjusting lever 32 of each adjusting unit 31 is screwed to a first longitudinal end 32.1 of which two screws 33 are screwed to a respective one of two opposite longitudinal ends 15.1, 15.2 of the counter-cutting carrier 15.
    An opposite to the first longitudinal end 32.1 opposite second longitudinal end 32.2 of the adjusting lever 32 of each adjustment unit 31 is connected via a threaded nut mounted thereon with a rotatably mounted on the drum housing 2 threaded rod 34 of the adjusting unit 31 in threaded engagement. The threaded rod 34 is connected on the output side at a longitudinal end thereof with an angle gear 35 of the adjusting unit 31. On the input side, the angle gear 35 with an electric motor 36 of the adjusting unit 31 is drive-connected.
    By operating the electric motor 36 thus the threaded rod 34 is drehan-drivable, whereby the adjusting lever 32 is displaced by the threaded engagement of its threaded nut at its second longitudinal end 32.2 along the threaded rod 34, whereby the adjusting movement of the actuating lever 32 is realized. Since the first longitudinal end 32.1 of the adjusting lever 32 of each of the two adjusting units 31 is connected to the counter-cutting carrier 15, the counter-cutting carrier 15 and thus the counter-blade 11 is pivoted about the pivot axis A2 by the adjusting movement of the adjusting lever 32. As a result, the radial adjustment of the counter-blade 11 to the cutterhead 3 is realized and away from it.
    In order to protect the counter-blade 11 in the chopping process against vibration excitation, the counter-cutting device 10 also has a clamping device 40, which allows a secure holding and clamping the counter-blade 11 in the chopping process and still a sensitive adjustment of the counter-blade 11 in a setting operation.
    More precisely, the clamping device 40 has on both sides of the two longitudinal ends 11.1, 11.2 of the counter-blade 11 or for each of the two adjusting units 31 of the adjusting device 30 a clamping unit 41, the two clamping units 41 being identical to one another.
    Each of the two clamping units 41 has clamping means 45 which are adapted to produce a clamping connection between the respective adjusting lever 32 and the base 5 (here in particular the drum housing 2) by means of a setting force, in order to inhibit the adjusting movement of the adjusting lever 32, and release means 50, which are arranged to release by means of a force the clamping connection between the adjusting lever 32 and the base 5 (in particular the drum housing 2) to release the adjusting movement of the actuating lever 32, as shown in Fig. 2.
    In the present embodiment of the invention, the release means 50 for providing a force for releasing the clamp connection one
    Hydraulic cylinder 51 and have the clamping means 45 for providing a force for establishing the clamping connection, a spring 46. The spring 46 is preferably formed as a plate spring package.
    In detail, in each of the two clamping units 41, the hydraulic cylinder 51 has a cylinder housing 52 which, via a flange provided thereon, is secured to the drum housing 2 (at the base 5), as here e.g. by welding or else e.g. is fastened by means of screw connection. In the cylinder housing 52, a closed chamber 53 is formed. In the chamber 53, a hydraulic piston 54 is inserted linearly movable. A provided on the hydraulic piston 54 piston rod 55 extends through a first end face 53.1 of the chamber 53 defining end face of the cylinder housing 52 fluid-tight and linearly movable therethrough. Thus, the cylinder housing 52 forms at this end face for the piston rod 55, a linear bearing 56, via which the piston rod 55 is mounted longitudinally movable on the base 5 and here in particular on the drum housing 2.
    The spring 46 of the clamping means 45 is operatively connected to the piston rod 55 in order to drive the piston rod 55 by means of its spring force (actuating force) in a first direction of movement (in FIG. 2 to the right) in the linear bearing 56. On the other hand, the hydraulic cylinder 51 of the release means 50 is operatively connected to the piston rod 55 to drive the piston rod 55 in the linear bearing 56 by means of its actuating force generated by hydraulic pressure in a second direction of movement opposite to the first direction of movement (to the left in FIG.
    In detail, the piston rod 55 has a first drive surface 54.1 and a second drive surface 54.2 which are formed on mutually opposite sides of the piston 54 arranged on a first longitudinal end section of the piston rod 55. In this case, the first drive surface 54.1 in the second direction of movement (in Fig. 2 to the left) turned and also the first
    End face 53.1 of the chamber 53 faces. The second drive surface 54.2 faces in the first direction of movement (to the right in FIG. 2) and also faces the second end surface 53.2 of the chamber 53 opposite the first end surface 53.1. The second end surface 53.2 of the chamber 53 is formed in the present embodiment of a part of an outer surface of the drum housing 2.
    The spring 46 of the clamping means 45 is arranged between the first drive surface 54.1 of the piston rod 55 provided on the piston 54 and the first end surface 53.1 of the chamber 53 of the cylinder housing 52, so that the spring force (actuating force) of the spring 46 is continuously applied to the first drive surface 54.1.
    Between the piston 54 provided on the second drive surface 54.2 of the piston rod 55 and the second end face 53.2 of the chamber 53 of the cylinder housing 52 is a fluid passage 52.1 through a wall of the cylinder housing 52 therethrough. Via the fluid passage 52.1, hydraulic pressure from a hydraulic pressure source, not shown, can be selectively supplied to the part of the chamber 53 located between the second drive surface 54.2 and the second end surface 53.2, so that the actuating force based on the hydraulic pressure of the release means 50 and the hydraulic cylinder 51 of the second drive surface 54.2 can be acted upon.
    Each of the two clamping units 41 also has coupling means which are arranged to couple the piston rod 55 with the respective adjusting lever 32 when moving in the first direction of movement (to the right in FIG. 2) to drive the adjusting lever 32 in the first direction of movement, and stop means on, at which the adjusting lever 32 can be brought to the pressure installation during movement in the first direction of movement, so that the clamping connection between the adjusting lever 32 and the base 5 (here in particular the drum housing 2) is produced.
    In detail, the piston rod 55 of the hydraulic piston 51 is guided through a passage recess 32.3 in the adjusting lever 32 and stands with a the first longitudinal end portion opposite second longitudinal end portion 55.2 of this on a side facing away from the drum housing 2 of the actuating lever 32 from passage recess 32.3 out. At the second longitudinal end portion 55.2 of the piston rod 55, a thread is provided, on which a threaded nut 57 is screwed. Between the threaded nut 57 and the drum housing 2 side facing away from the actuating lever 32, two washers 58, 59 are arranged to increase the area.
    If the piston rod 55 is now moved in the first direction of movement (in Fig. 2 to the right), the threaded nut 57 is pulled by the piston rod 55 on the two washers 58, 59 to the pressure system and thereby come the two washers 58, 59 turn on the Drum housing 2 opposite side of the actuating lever 32 to the printing system. Characterized the piston rod 55 is coupled to the respective adjusting lever 32, wherein the piston rod 55 acts as a tie rod.
    The stop means have at the position of the linear bearing 56 in the second direction of movement (in Fig. 2 to the left) facing outer surface or end face of the cylinder housing 52. Thus, as it were, an outer surface of the linear bearing 56 forms part of the stop means.
    The stop means also have two further as already mentioned washers 58, 59, which for increasing the area between the outer surface or end face of the cylinder housing 52 facing the second direction of movement and a drum housing 2 facing side of the respective actuating lever 32 arranged on the rod acting as a pull rod 55 are included.
    If the clamping connection between the adjusting lever 32 and - the stop means and the cylinder housing 52 - the drum housing 2 of the base 5 is to be made, for. In the chopping operation to inhibit the adjusting movement of the adjusting lever 32, the hydraulic cylinder 51, no hydraulic pressure is supplied via the fluid passage 52.1, but the fluid passage 52.1 pressure-free, for. switched to a return tank of the hydraulic pressure source. Thus, only the spring force (actuating force) of the spring 46 of the clamping means 45 acts on the provided on the piston 54 first drive surface 54.1 of the piston rod 55, so that the piston rod 55 in the first direction of movement (in Fig. 2 to the right) is displaced. As a result pulls the piston rod 55 acting as a pull rod, the adjusting lever 32 against the stop means, whereby the adjusting lever 32 is connected via the cylinder housing 52 by clamping with the drum housing 2 of the base 5.
    When the clamping connection between the adjusting lever 32 and the drum housing 2 of the base 5 is to be released, e.g. for an adjustment of the position of the counter-blade 11 relative to the chopper drum 3 to release the adjusting movement of the adjusting lever 32, hydraulic pressure is supplied to the hydraulic cylinder 51 via the fluid passage 52.1. Thus, in addition to the spring force (actuating force) of the spring 46 of the clamping means 45, which acts continuously on the first drive surface 54.1 of the piston rod 55, the hydraulic pressure acts on the second drive surface 54.2 of the piston rod 55 provided on the piston 54. Thus, the hydraulic pressure-based actuating force of the hydraulic cylinder becomes 51 of the release means 50 generated.
    The size of the hydraulic pressure and / or the size of the second drive surface 54.2 are dimensioned so that the hydraulic pressure-based actuating force of the hydraulic cylinder 51 of the release means 50 is greater than the spring force (actuating force) of the spring 46 of the clamping means 45, whereby the piston rod 55 in the second Movement direction (in Fig. 2 to the left) is shifted. As a result, the piston rod 55 no longer pulls the adjusting lever 32 against the stop means, as a result of which the clamping connection of the adjusting lever 32 realized via the cylinder housing 52 with the drum housing 2 of the base 5 is released. Now, the adjusting lever 32 driven by the associated adjusting unit 31 perform a desired adjusting movement, wherein the piston rod 55 within the limits of the. as a slot running through recess 32.3 of the control lever 32 moves.
    Preferably, according to the invention, the two adjusting units 31 are operated synchronously with one another and the two clamping units 41 are also operated synchronously with one another. If necessary (for example, if an oblique adjustment of the counter-blade 11 is desired), however, an asynchronous operation of the adjusting units 31 and the clamping units 41 is also possible according to the invention.
    Under the disengagement of the clamping force according to the invention, in all embodiments and in the above description, both the complete release of the clamping force and a partial release, i. to understand reducing the clamping force.
    Upon complete release of the clamping force, the clamping means no longer generate frictional force between the friction partners so that they are very easily movable relative to each other.
    When partially releasing the clamping force, this is merely reduced and there remains a residual frictional force or a residual clamping force between the friction partners, under the voltage, the adjusting movement of the control lever is facilitated. The residual clamping force is preferably set so that the counter blade can be easily adjusted on the one hand and the mobility of the counter blade on the other hand is somewhat inhibited by the resistance of the residual clamping force, so that vibrations of the counter blade are damped, which can be caused by contacts with vorbeidrehenden cutting blades , The residual clamping force is preferably set to a quarter to about half of the maximum clamping force.
    Under the tension of the residual clamping force, the adjusting lever can be adjusted more sensitively or more accurately.
    The residual friction force or residual clamping force can be generated by an additional spring assembly or by a corresponding hydraulic pressure.
    From the above description, it is also possible to derive a method according to the invention for setting a counter cutting edge of a chopper unit with respect to a chopper drum 3, in particular for adjusting the counterknife 11 of the chopper unit 1 by means of the countercutting device 10.
    The method according to the invention has at least the steps: releasing a clamping of a control lever 32 connected to the counter-blade 11 for adjusting it; Adjusting a position of the counterknife 11 with respect to the chopper drum 3 by performing an adjusting movement of the adjusting lever 32; and restoring the clamping of the adjusting lever 32. Preferably, the adjustment of the position of the counter-blade 11 is performed by means of a pivot axis A2 ver-pivoting the counter-blade 11.
    LIST OF REFERENCES 1 chopping unit 2 drum housing 3 chopper drum 4 cutting blade 5 base 10 counter cutting device 11 counter cutting edge 11.1.11.2 longitudinal end 12 screw 15 counter cutting carrier 15.1.15.2 longitudinal end 20 base element 21,22 pivot bearing 30 adjusting device 31 adjusting unit 32 adjusting lever 32.1.32.2 longitudinal end 32.3 passage recess 33 screw 34 threaded rod 35 Angular gear 36 Electric motor 40 Clamping device 41 Clamping unit 45 Clamping means 46 Spring 50 Release means 51 Hydraulic cylinder 52 Cylinder housing 52.1 Fluid passage 53 Chamber 53.1.53.2 End surface 54 Hydraulic piston 54.1.54.2 Drive surface 55 Piston rod (drawbar) 55.2 Longitudinal end section 56 Linear bearing 57 Threaded nut 58 Washer 59 Washer A1 Rotation axis A2 Swivel axis
    权利要求:
    Claims (9)
    [1]
    claims
    1. Counter cutting device (10) for a chopper unit (1) of an agricultural working machine, comprising: an elongate counter-blade (11) for cooperating with circumferentially on a chopper drum (3) of the chopping unit (1) arranged cutting blades (4), a base (5) for stationary arrangement in the chopper unit (1), a counter-cutting carrier (15) for fixing receiving the counter-blade (11), wherein the counter-blade carrier (15) is movably mounted on the base (5) to a radial to the chopper drum (3) and back this displacement adjustment of the counter-blade (15) fixed counter-blade (11) to allow an adjusting device (30) with at least one adjustment unit (31) having an adjusting lever (32), the adjustable movable mounted on the base (5) and with the counter-blade carrier (15) is connected, so that with an adjusting movement of the adjusting lever (32), the radial displacement of the counter-blade carrier (15) antreibba r is a clamping device (40) with at least one clamping unit (41), which clamping means (45) which are adapted to establish a clamping connection between the adjusting lever (32) and the base (5) by means of a force to the adjusting movement of the adjusting lever (32) and release means (50) adapted to release, by means of a force, the clamping connection between the control lever (32) and the base (5) or to reduce the clamping force in order to control the actuating movement of the control lever (32) to release or facilitate, characterized in that the at least one clamping unit (41) comprises: a pull rod (55), which is mounted longitudinally movably on the base (5) via a linear bearing (56), wherein the clamping means (45) with the tie rod (55) are operatively connected to drive the pull rod (55) by means of their actuating force in a first direction of movement in the linear bearing (56), wherein the release means (50) with the tie rod (55) are in operative connection, u m to drive the pull rod (55) by means of its force in a direction opposite to the first direction of movement second direction of movement in the linear bearing (56) dome means which are set, the pull rod (55) when moving in the first direction of movement with the adjusting lever (32) coupling to drive the adjusting lever (32) in the first direction of movement, and stop means, on which the adjusting lever (32) when moving in the first direction of movement can be brought to the pressure system, so that the clamping connection between the adjusting lever (32) and the base (5 ) will be produced.
    [2]
    2. Counter cutting device (10) according to claim 1, wherein the clamping means (45) and the release means (50) for providing their respective actuating force for producing the clamping connection or releasing the clamping connection in each case at least one hydraulic cylinder (51) and / or at least one spring ( 46) and / or have at least one piezoelectric element.
    [3]
    3. Counter cutting device (10) according to claim 2, wherein the at least one spring (46) is designed as a plate spring package.
    [4]
    4. counter cutting device according to one of claims 1 to 3, wherein the counter-cutting support is mounted displaceably along a plane at the base to allow the radial displacement of the counter-blade.
    [5]
    5. counter cutting device (10) according to any one of claims 1 to 3, wherein the counter-blade carrier (15) is pivotally mounted on the base (5) to allow the radial displacement of the counter-blade (11).
    [6]
    6. counter cutting device (10) according to claim 1, wherein the pull rod (55) has a in the second direction of movement facing first drive surface (54.1) and facing in the first direction of movement second drive surface (54.2), wherein the linear bearing (56) has a chamber (54). 53), in which the two drive surfaces (54.1, 54.2) of the drawbar (55) are arranged so that the first drive surface (54.1) faces a first end surface (53.1) of the chamber (53) and the second drive surface (54.2) one of the first end face (53.1) facing the second end face (53.2) of the chamber (53) faces, and wherein the clamping means (45) between the first drive surface (54.1) and the first end face (53.1) are arranged so that the force of the Clamping means (45) of the first drive surface (54.1) can be acted upon, and the release means (50) between the second drive surface (54.2) and the second end face (53.2) are arranged, so that the Stell by the release means (50) of the second drive surface (54.2) can be acted upon.
    [7]
    7. counter cutting device (10) according to claim 6, wherein the first and the second drive surface (54.1, 54.2) of the tie rod (55) at a first longitudinal end portion of the tie rod (55) are arranged, wherein a first longitudinal end portion opposite the second longitudinal end portion (55.2) the pull rod (55) via the coupling means in the first direction of movement moving the pull rod (55) with the adjusting lever (32) can be coupled, and wherein the stop means have an in the second direction of movement facing outer surface of the linear bearing (56).
    [8]
    8. A method for setting a counter-blade (11) of a chopper unit (1) with respect to a chopper drum (3), comprising: releasing a clamping of one with the counter-blade (11) for adjusting this associated control lever (32), adjusting a position of the counter-blade ( 11) with respect to the chopper drum (3) by performing an adjusting movement of the adjusting lever (32), and restoring the clamping of the adjusting lever (32).
    [9]
    9. The method according to claim 8, wherein the adjustment of the position of the counter-blade (11) by means of displacement along a plane and / or by means of a pivot axis (A2) pivoting of the counter-blade (11) is performed.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE19753740C1|1999-07-15|Device for processing a material web
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    DE2926538C2|1982-08-05|Adjustable holder for a shear bar that interacts with a cutterhead of a forage harvester
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    同族专利:
    公开号 | 公开日
    BE1023253A1|2017-01-11|
    DE102014116491A1|2016-05-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0217461A1|1985-10-04|1987-04-08|FORD NEW HOLLAND, INC. |Quick adjust shearbar mechanism|
    DE3535902A1|1985-10-08|1987-04-09|Mengele & Soehne Masch Karl|CHOPPER OR THE LIKE CRUSHING MACHINE|
    EP0402634A1|1989-06-10|1990-12-19|Claas Saulgau Gmbh|Support and adjusting device for the shear bar of forage harvester|
    DE19652656A1|1996-12-18|1998-06-25|Claas Ohg|Adjustment device for chopper unit|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014116491.1A|DE102014116491A1|2014-11-12|2014-11-12|Counter cutting device and method for adjusting a counter-blade|
    DE102014116491.1|2014-11-12|
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