JP6532156B2 - Crop harvester - Google Patents

Description

  The present invention relates to an apparatus for harvesting whole crop crops (hereinafter referred to as "crops"), and more particularly to a crop harvester capable of easily removing a crop sandwiched between a pair of rotating disks. It is.

  Conventionally, the following apparatus exists as a crop harvester which harvests crops such as corn, rice and wheat and shreds for feed.

  First, as shown in FIG. 9, in the first crop harvester (see Patent Document 1 below, etc.), the crop cut by the reaper 101 is cut and transported obliquely upward, and then it is made horizontally horizontal between the disc cutters 102. And shredded there. Then, the shredded crop is diffused by the diffusion section 103 and conveyed to the roll forming section 104 at the rear thereof to form a roll bale. In general, such a harvester is used as a dedicated harvester of feed rice, and has a merit that it can be harvested at low cost and efficiently by performing a design focused on a specific crop.

  Further, as shown in FIG. 10, the second crop harvester (the following Patent Document 2 and the like) comprises a drum cutter 105 which rotates inward around the vertical axis, and the drum cutter At 105, the crops are cut and collected in the central portion, where they are pulled from the stock source horizontally and vertically into the transport section 106 and shredded by the shredding section 107 having a rotary blade. Then, the crop shredded by the shredded portion 107 is guided to the shooter 108 by wind pressure and transferred to the rear bed or the roll forming portion 109 or the like. Such a harvester has an advantage that crops such as large-stalked crops such as corn and crops such as feed rice can be harvested versatilely.

JP, 2008-142049, A Design Registration No. 1470080

  By the way, in the central portion of the disk cutter 102 and the drum cutter 105 of such an apparatus, since the bundled crops are gathered, the crops may be clogged between the opposing cutters. In such a case, the cutter is reversed to remove the clogging, but if the cutter is reversed in this way, the following problems occur.

  That is, when the respective cutters are reversely rotated, the crop caught by the cutter may be transported in the reverse direction, and the crop may be pinched with the wall surface provided on the opposite side. Therefore, when reversing the cutter, there is a problem that it is necessary to reverse slowly while looking at the position where the crop is reversed.

  In addition, when reversing heavy ones such as the drum cutter 105, etc., "set the engine to idle and decelerate", "replace gear in the reverse direction", "increase engine rotational speed", "rotate the drum cutter", etc. A series of tasks had to be done individually to clear the jam. Then, after the clogging is removed, a series of operations such as “return the engine to idling and decelerate”, “change gears in the forward direction”, “increase engine speed”, etc. must be performed again, It had the problem that it took a lot of time and effort.

  Therefore, an object of the present invention is to provide a crop harvester capable of easily removing clogs even if the crops are caught and clogged between opposed rotating disks.

That is, in order to solve the above-mentioned subject, the present invention is a crop harvest which cuts a crop sandwiched between the rotating disks by rotating a plurality of rotating disks provided with a cutter in an outer peripheral portion inward in the forward direction. Outputs a signal for decelerating the rotational drive of the rotating disk when the reverse button for instructing the reverse rotation of the rotating disk and the reverse button are pressed, and forward rotation based on the output of the signal First decelerating means for decelerating drive, exchange control means for replacing a mission for reversely driving the rotating disc based on the fact that the normal rotation drive of the rotating disc is decelerated by the first decelerating means, and the exchange after transmission has been replaced by the control means, and a reversing drive means to reverse drive the rotary disk, the replacement control hand As was configured with a rotation detecting means, if it is determined that deceleration than a certain rotational speed by the rotation detecting means, it is obtained by the so that replacement mission.

According to this configuration, it is possible to perform a series of operations from the deceleration to the reverse rotation of the rotary disk only by pressing the reverse rotation button , and it is detected that the rotation speed has dropped or the rotation has stopped, and the reverse rotation is performed. -In order to replace the normal rotation, it is possible to smoothly replace the missions, easily remove the clogged crop, and improve the work efficiency.

  Further, in such an invention, a second decelerating means for decelerating the reverse drive of the rotating disc by the reverse drive means when the pressing of the reverse button is released, and the reverse drive of the rotating disc by the second decelerating means And exchange control means for replacing the mission for driving the rotating disk in the forward direction based on the deceleration of the rotating disk, and forward rotation driving for rotating the rotating disk in the forward direction after the mission is exchanged by the replacement control means And means are provided.

  According to this structure, by releasing the reverse rotation button, the rotary disk can be rotationally driven to the normal rotation side, and the reverse rotation is instantaneously stopped as compared with the case where the normal rotation button is additionally provided separately and the normal rotation is performed. Thus, the rotating disk can be rotated forward. This makes it possible to eliminate the re-clogging of the crop without losing the timing of the forward rotation.

  Further, a transport unit for transporting the crop harvested by the rotary disk is provided downstream of the rotary disk, and the transport unit is rotated forward and reverse simultaneously with normal rotation and reverse rotation of the rotary disk.

  According to this structure, since the crop which has entered the transport unit can be discharged, clogging in the transport unit can be removed at the same time.

According to the present invention, there is provided a crop harvester for cutting a crop sandwiched between rotating disks by rotating a plurality of rotating disks provided with cutters at their outer peripheral portions inwards with each other. A reverse rotation button for instructing reverse rotation and a first deceleration to output a signal for decelerating the rotational drive of the rotating disk when the reverse rotation button is pressed, and to decelerate the forward rotation drive based on the output of the signal Means and exchange control means for switching the mission for reversely driving the rotating disk based on the forward rotation drive of the rotating disk being decelerated by the first decelerating means, and the mission being exchanged by the exchange control means after, a reverse driving means for reversely driving the rotary disc, as the replacement control means comprises rotation detecting means Configured, if it is determined that deceleration than a certain rotational speed by the rotation detecting means, since the so that replacing the mission, only pressing the reverse rotation button, a series of up to reversal from the deceleration of the rotary disc In order to detect that the rotation speed has dropped or stopped and replace the reverse rotation and forward rotation, the mission is smoothly replaced, and clogging of the crop is easily done. Can be removed to improve work efficiency.

An overall schematic view of a crop harvester showing an embodiment of the present invention Plan view of the reaper in the same form The figure which shows the conveyance part and shredding part in the same form The figure which shows the roll forming part in the form The figure which shows the drive mechanism of the reaper part and conveyance part in the form The side schematic which shows the drive mechanism of the conveyance part in the form Functional block diagram showing reverse operation in the same form Diagram showing the operation flow in the same form Diagram showing a conventional example Diagram showing a conventional example

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The crop harvester 1 in this embodiment, as shown in FIG. 1, transports the cropping section 2 for harvesting the origin of crops such as corn, and the crop harvested by the cutting section 2 horizontally to the downstream side 3 and the shredding unit 4 for shredding the crop transported by the transportation unit 3 from the stock origin. Characteristically, the reaper 2 If the crop is clogged by the reaper 2, pressing the reverse button 71 (see FIG. 7) causes a series of operations such as idling of the engine, reverse of the drum, and recovery to be performed continuously. The Hereinafter, the configuration of the present embodiment will be described in detail.

  First, as shown in FIG. 1 and FIG. 2 etc., the reaper 2 is provided on the front side of the vehicle body, and is constituted by a pair of left and right drums 21. The drums 21 rotate inward to one another, and a plurality of blades 22 provided at the lower end of the outer periphery of the respective drums 21 cut the crop to draw the crop inward. An intermittent crop holding claw 23 is provided on the upper side of the outer peripheral portion of the blade 22 of the drum 21 so that the vicinity of the plant origin of the crop can be pinched and drawn inside. Thus, when the crop is drawn inward, the crop hits the bar 24 provided on the upper side (see FIG. 1) of the drum 21 and the crop is drawn inward from the stock origin in a horizontal state.

  When driving this reaper 2, it drives using a drive mechanism as shown in FIG.5 and FIG.6. In FIG. 5, reference numeral 8 is a rotating shaft serving as a drive source from the engine, and rotates the upper pulley 86 u via a belt clutch 81 shown in FIG. Then, when the upper pulley 86 u rotates in this manner, the rotational force is transmitted in the axial direction, and the sprocket 94 is rotated via the boxed transmission 91. The transmission 91 has a mechanism for rotating the sprocket 94 in the forward and reverse directions. The lever 94 is rotated in the A direction to rotate the sprocket 94 in the forward direction, and the lever 92 is rotated in the B direction to rotate the sprocket 94. Rotate in the reverse direction. Then, by rotating the sprocket 94 in the forward or reverse direction, the lower sprocket 94 on which the chain 95 is bridged is rotated, and the left and right drums 21 are rotated via the bevel gear 96 and the like.

  The transport unit 3 transports the crop cut by the harvesting unit 2 to the downstream shredding unit 4 in a state of being horizontal in the front-rear direction, and as shown in FIG. A conveyance roller portion 31 and a second conveyance roller portion 32 are provided.

  Among them, the first conveyance roller portion 31 is configured to be provided with a lower fixed roller 31 b and an upper variable roller 31 a, and the crop is sandwiched in the conveyance gap width between these fixed roller 31 b and the variable roller 31 a. It is made to convey by. Here, the variable roller 31a can be retracted in the vertical direction by the force of the first connecting member 33 and the spring 33a rotatably attached to the fixed roller 32b of the second conveyance roller portion 32. The supplied crop is sandwiched in a pressed state.

  Further, like the first conveyance roller portion 31, the second conveyance roller portion 32 is configured by providing the upper fixed roller 32b and the lower variable roller 32a, and between the fixed roller 32b and the variable roller 32a. By sandwiching the crop in the transport gap width, the crop pinched by the first transport roller portion 31 is transported in a horizontal state. The variable roller 32a can be retracted in the vertical direction by the force of a second connecting member 34 and a spring 34a rotatably attached to the fixed roller 31b of the first conveyance roller portion 31. The crop conveyed from the section 31 can be sandwiched in a state of being pressed.

  The fixed roller 31 b and the variable roller 31 a of the first conveyance roller unit 31, and the fixed roller 32 b and the variable roller of the second conveyance roller unit 32 are driven by a drive mechanism as shown in FIG. 5. Sprockets 310a, 310b, 320a, and 320b are attached to the other end sides of the rollers 31a, 31b, 32a, and 32b, respectively, and the drive mechanism is configured to be able to span the chain for rotation. Thus, when rotating each roller 31a, 31b, 32a, 32b, the chain is bridged between the drive sprocket 300 attached to the shaft on the opposite side of the transmission and the sprocket 310b, 320b of each fixed roller 31b, 32b. The fixed rollers 31b and 32b are driven by rotating the drive sprocket 300. The chain is also passed between the sprockets 310b and 320b of the fixed rollers 31b and 32b and the sprockets 310a and 320a of the variable rollers 31a and 32a adjacent to each other, thereby driving the variable rollers 31a and 32a.

  As shown in FIG. 3, the shredding unit 4 is configured to shred the crop transported in a horizontal state by the transport unit 3 at predetermined intervals. The shredding unit 4 is capable of sandwiching and shredding a crop between a plurality of rotary blades 43 provided on the outer peripheral portion of the cylinder 42 and a fixed blade 41 provided in the vicinity of the second conveyance roller unit 32. It has become. Further, the cylinder 42 is provided with a plurality of blades 44 for blowing up the shredded crop, and by rotating the cylinder 42, the shredded crop is blown up.

  The discharge unit 5 discharges the crop blown up by the cylinder 42 toward the rear of the vehicle body. The discharge unit 5 is configured to take in the crop from the inlet provided above the fixed blade 41 of the shredding unit 4 by blowing up by rotation of the blade 44 of the cylinder 42 and discharge the crop therefrom. . The crop discharged in this manner is discharged to a roll forming portion 6 (see FIG. 1) provided at the rear of the vehicle body. Here, the rear side of the vehicle body is configured by the roll forming portion 6, but the rear side of the vehicle body may be a loading platform, and the shredded crop may be loaded there.

  As shown in FIG. 4, the roll forming unit 6 rotates a discharged crop to form a cylindrical roll bale, and winds a net 68 around the outer periphery of the roll bale to release it to the field. The roll forming portion 6 is provided with a front chamber 62f and a rear chamber 62b provided so as to be openable and closable by a hinge attached to a rear upper end of the front chamber 62f. The front chamber 62f and the rear chamber 62b It enables it to form a roll bale in roll forming part 6 surrounded by. A plurality of chain gears 63 for rotating the chain 64 is attached to the left and right side walls constituting each of the chambers 62f and 62b, and an arc shape is formed inside the central direction of the chain 64 to be circulated. The guide plate 65 is attached. The guide plate 65 is separated into a front guide plate provided on the front chamber 62f side and a rear guide plate provided on the rear chamber 62b side, and when the front chamber 62f and the rear chamber 62b are closed. Then, a continuous C-shaped guide edge 65a is formed. The ends of the plurality of tight bars 66 are in contact with the guide edge 65 a of the guide plate 65 provided on the side wall in this manner, and the chains 64 are connected to the ends of the tight bar 66 and circulated. It has become. The tight bar 66 orbits in a C-shape along the guide edge 65a, and when the rear chamber 62b is opened, it orbits along the guide edges 65a of the front and rear guide plates. . Further, the roll forming unit 6 is provided with a net feeding portion 69 for winding the net 68 around a roll bale. When the net 68 is wound by the net feeding portion, the net 68 is fed from the net roll 67 by a motor by detecting that the roll bale has a predetermined size, and the roll forming portion 6 is provided with the net 68. Lead the tip portion and wind the net 68 in the same manner as forming the roll bale. Then, after winding the net 68 a predetermined number of times, the net 68 is cut, the rear chamber 62b is opened, and the roll bale is discharged to the field.

  In such a configuration, the crop harvester 1 is provided with a control unit 7 for reversing the drum 21 and the transport unit 3 when the reverse button 71 is pressed. A functional block diagram of the control unit 7 and the like will be described with reference to FIG.

  First, in a state where the reverse rotation button 71 is pressed, the first reduction means 72 outputs a signal for returning the engine to the idling state, and reduces the number of revolutions of the engine. Further, as shown in FIG. 6, in parallel with this, a signal for separating the pressing pulley 82 constituting the belt clutch 81 from the V-shaped belt 83 is output to the motor 84. When the pressing pulley 82 is separated from the V-shaped belt 83, the motor 84 is driven to rotate the plate 85 supporting the pressing pulley 82 to separate it from the V-shaped belt 83. Then, the V-shaped belt 83 is bent and the drive transmission to the upper pulley 86 u is interrupted. As a result, the driving force is not transmitted to the transmission 91, the sprocket 94, the chain 95, the bevel gear 96 and the like, and the rotational force of the drum 21 is gradually weakened. When the pressing pulley 82 is thus separated, the rotational force of the bevel gear 96, the chain 95, the sprocket 94, and the transmission 91 gradually becomes weak due to the inertia force of the drum 21. The conveying unit 3 rotating via the drive sprocket 300 and the chain that has been attached also does not rotate gradually. Then, after a predetermined time, the rotation of the drum 21 and the conveyance unit 3 is stopped or becomes less than a predetermined number of rotations.

  The rotation detecting means 73 detects that the number of rotations has become equal to or less than a predetermined value. The rotation detecting means 73 is provided on the variable roller 32 a side of the second conveyance roller unit 32 as shown in FIG. 6, and the plate 730 attached to the variable roller 32 a does not cross the sensor 731. It is determined that it has been stopped or decelerated, and this is output to the control unit 7. Here, the rotation detection means 73 is provided on the side of the second conveyance roller unit 32 of the conveyance unit 3. However, the sensor 731 may be provided on the side of the drum 21 or the mechanism element for driving this.

  When the control unit 7 receives a signal such as "stop", it outputs a signal for replacing the mission 91 to the replacement control means 74 and drives the lever 92 so as to replace the mission from "forward rotation" to "reverse rotation". Do. The drive of the lever 92 is performed by a motor 93. When replacing the lever 92, the rotary shaft of the transmission 91 is substantially stopped, so that the transmission 91 can be smoothly replaced. Then, when the switching of the lever 92 is completed, the control unit 7 outputs a signal for causing the reverse drive means 75 to reverse the drum 21 and the transport unit 3.

  The reverse rotation drive means 75 transmits the driving force from the drive shaft 8 to the drum 21 and the conveyance unit 3 side using the above-described belt clutch 81. When transmitting the driving force, the motor 84 outputs a signal for pressing the V-shaped belt 83, and the pressing pulley 82 presses the V-shaped belt 83. Then, the rotational drive of the pulley 86d rotating at low speed is transmitted to the upper pulley 86u, and from there, the rotational drive is transmitted to the drum 21 side via the transmission 91, the sprocket 94, the chain 95, the bevel gear 96 and the like. Become. This makes it possible to reverse the drum 21 at low speed rotation. At the same time, the drive mechanism such as the drive sprocket 300 attached to the opposite side of the transmission 91 also reversely rotates, so that the first transport roller portion 31 and the second transport roller portion 32 can be reversed at low speed. it can. Then, by reversing the drum 21 and the transport unit 3 in this manner, the crop stuck in the drum 21 and the transport unit 3 is removed.

  When the clogging of the crop can be removed, the reverse button 71 is released to release the pressed state. Then, in response to the release of the pressure, the control unit 7 outputs a signal to the second decelerating means 76 to stop or decelerate the reverse rotation of the drum 21 and the conveyance unit 3. In the case of causing the stop and the like, similarly, the pressing pulley 82 of the belt clutch 81 is separated, and the drive transmission of the V-shaped belt 83 is interrupted. Then, the rotation shaft of the transmission 91, the sprocket 94, the chain 95, and the bevel gear 96 are stopped and the reverse rotation of the drum 21 is stopped along with the interruption. At the same time, the transport unit 3 is stopped via a drive mechanism such as a drive sprocket 300 attached to the opposite side of the transmission 91.

  Then, when stop or deceleration of the rotation is detected by the rotation detection means 73, this is output to the control unit 7, and a signal for replacing the mission 91 from "reverse rotation" to "forward rotation" is output. Then, while the rotation is substantially stopped, the lever 92 is driven using the motor 93 to replace the mission 91. Then, the control unit 7 outputs a signal for causing the drum 21 and the transport unit 3 to rotate in the normal direction to the normal rotation drive unit 77. At the time of this normal rotation drive, first, the V-shaped belt 83 is pressed by the pressing pulley 82 of the belt clutch 81 to transmit the rotational force of the drive shaft 8 to the upper pulley 86 u. At this time, when pressing by the pressing pulley 82, the pressing pulley 82 is moved while being raised and stopped (inching) in small increments, thereby shortening the friction time between the V-shaped belt 83 and the pulley 86. Then, the transmission force from the drive shaft 8 is transmitted to the drum 21 and the transport unit 3 by this, and then the drum 21 and the transport unit 3 are rotated forward at high speed in a state where the engine rotational speed can be increased. Make it

  Next, the whole operation principle of the crop harvester 1 configured as described above will be described.

  First, when harvesting a crop, the field is run while rotating the drum 21 in the forward direction. Then, the crops present in the width of the left and right drums 21 are cut by the drums 21 and focused on the central portion of the inward rotating drums 21.

  The crops collected in this way hit the upper bar 24 and are taken from the stock origin into the transport unit 3 and are sandwiched by the first transport roller portion 31 and the second transport roller portion 32 and shredded in a horizontal state It will be transported to the section 4.

  When these crops are conveyed to the shredding unit 4, they are shredded from the stock origin by the fixed blade 41 provided in the shredding unit 4 and the rotary blade 43 rotating from the bottom. Then, the shredded crop is blown up by the blades 44 of the shredding unit 4 and discharged to the roll forming unit 6 through the discharge unit 5.

  When the shredded crop is transported to the roll forming unit 6, the crop is rotated by the orbiting tight bar 66, and the roll is gradually enlarged. Then, when the roll becomes a predetermined size, the roll is detected by a sensor (not shown), and the net 68 is drawn out, wound around the outer periphery, and discharged to the outside.

  On the other hand, when the crop is clogged on the inner central portion of the drum 21 of the reaper 2 during such a harvesting operation, the reverse button 71 is pressed (FIG. 7, step S1).

  When the reverse rotation button 71 is pressed, a signal for idling is output to the engine via the first decelerating means 72 constituting the control unit 7, and the engine is put into an idling state (step S2). Are separated from the V-shaped belt 83 (step S3). Then, the drive transmission from the engine is cut off, and the rotational drive of the drum 21 and the conveyance unit 3 is gradually decelerated. At this time, wear of the V-shaped belt 83 can be reduced because the pressure pulley 82 is separated in the idling state of the engine.

  Then, when the rotational drive of the drum 21 and the transport unit 3 is gradually decelerated and the rotation detection means 73 detects "stop" or "deceleration" (step S4), this is output to the control unit 7, and the control unit 7. A signal for replacing the mission 91 is output to the motor 93 side of the mission 91 from 7 (step S5). Then, the transmission 91 is switched from “forward rotation” to “reverse rotation” by the drive of the motor 93. After that, the control unit 7 outputs a signal for reversely rotating the drum 21 and the transport unit 3 to the reverse rotation drive unit 75.

  In response to the output of this signal, the reverse drive means 75 presses the pressing pulley 82 against the V-shaped belt 83 and transmits it to the upper pulley 86 u while rotating the engine at low speed (step S 6). Then, from there, the drum 21 and the transport unit 3 are reversed via the mission 91 and the like. Then, it is possible to slowly remove the crop stuck in the drum 21 and the transport unit 3 by the rotational drive by the low speed rotation.

  Then, when the clogging of the crop can be removed, the reverse button 71 is released (step S7). Then, the control unit 7 outputs a signal to the second decelerating means 76 to separate the pressing pulley 82 of the belt clutch 81 (step S8). Then, when the rotation detection means 73 detects stop or deceleration of the rotation (step S9), this is output to the control unit 7, and the mission 91 is changed from "reverse rotation" to "forward rotation" (step S10), A signal for causing the drum 21 and the like to rotate normally is output from the control unit 7 to the normal rotation drive means 77, and the pressing pulley 82 of the belt clutch 81 is pressed against the V-shaped belt 83 (step S11). Then, the rotational drive from the engine is transmitted, the drum 21 and the transport unit 3 are normally rotated, and the idling state is canceled and the crop can be harvested at high speed rotation (step S12).

As described above, according to the above-described embodiment, the crop harvester cuts the crop sandwiched between the drums 21 by rotating the plurality of drums 21 provided with the blades 22 in the outer peripheral portion in the forward direction. 1 outputs a signal for decelerating the rotational drive of the drum 21 when the reverse button 71 instructing reverse rotation of the drum 21 and the reverse button 71 are pressed, and based on the output of the signal Exchange control to replace the mission 91 for reversely driving the drum 21 based on the fact that the normal reduction drive of the drum 21 is decelerated by the first decelerating means 72 for decelerating the normal rotation drive and the first decelerating means 72 and it means 74, after the transmission 91 has been replaced by the replacement control unit 74, and a reverse rotation drive means 75 for reverse rotation is the drum 21, before As replacement control means 74, and configured to include a rotation detection means 73, if it is determined that deceleration than a certain rotational speed by the rotation detection means 73, since the so that replacing the mission 91, reverse By pressing the button 71, a series of operations from deceleration to reverse rotation of the drum 21 can be performed , and it is detected that the rotational speed has dropped or stopped to replace the reverse rotation and normal rotation. Therefore , the mission 91 can be smoothly replaced, and clogging of the crop can be easily removed to improve the work efficiency. It will be possible to easily remove clogged crops and improve work efficiency.

  The present invention is not limited to the above embodiment, and can be implemented in various aspects. For example, in the above embodiment, the drum is reversed to remove the clogged crop, but it is also applicable to a configuration to remove the clogged by the disc cutter 102 of the crop harvester shown in FIG. it can. That is, when the crop dropped from above is clogged between the disc cutters 102, the engine is made idle by pressing the reverse button, and the drive transmission from this engine is shut off to cut the disc cutters 102. Reduce the speed of rotation. Then, when it is detected that the rotational speed has dropped, the mission for reversing the disk cutter 102 is replaced, the drive transmission from the engine is connected again, the disk cutter 102 is reversed, and the clogging of the crop is removed. You may do so. Then, when the reverse rotation button is released, the drive transmission may be interrupted similarly to replace the mission, and the drive transmission may be connected again to rotate the disc cutter 102 in the "forward rotation" direction. .

  In the above embodiment, when the drum 21 is reversely rotated, the transport unit 3 is also reversely rotated. However, only the drum 21 may be reversely rotated.

  Furthermore, in the above embodiment, the drum 21 etc. is reversely rotated under the condition that the reverse rotation button 71 is pressed, but when the reverse rotation button 71 is pressed once, a series of these operations can be performed You may However, in this case, since the drum 21 always rotates in the reverse direction, when the drum 21 rotates about a half rotation to a quarter rotation, the “reverse rotation” is stopped and then the “forward rotation” is performed. Control may be performed.

  Further, in the above embodiment, the drive transmission is interrupted using the belt clutch 81, but the rotational speed due to rotational drive is reduced by controlling the engine rotational speed without using the belt clutch 81. In the case, the mission 91 may be replaced.

1 ... crop harvester 2 ... reaper 21 ... drum 22 ... blade 3 ... transport section 31 ... first transport roller section 32 ... second transport roller section 300 · · · · Drive sprockets 310a, 310b, 320a, 320b · · · Sprocket 4 · · · Shredding portion 5 · · · Discharge portion 6 · · · Roll forming portion · · · Control portion 71 · · · reverse button 72 · · · First decelerating means 73 ... rotation detecting means 74 ... replacement control means 75 ... reverse rotation driving means 76 ... second decelerating means 77 ... forward rotation driving means 8 ... driving shaft 81 · · · Belt clutch 82: Pressed pulley 83: V-shaped belt 84: Motor 85: Plate 86u, 86d: Pulley 91: Transmission 92: Lever 93: Lever 93: Motor 94 · · Sprocket 95 · · · Chain 96 ... bevel gear

Claims (3)

In a crop harvester that cuts a crop sandwiched between rotating disks by rotating a plurality of rotating disks provided with cutters in the outer peripheral portion inward in the forward direction,
A reverse button for instructing reverse rotation of the rotating disk;
A first decelerating means for outputting a signal for decelerating the rotational drive of the rotary disc when the reverse rotation button is pressed, and decelerating the forward drive based on the output of the signal;
Switching control means for changing a mission for reversely driving the rotary disk based on the fact that the normal rotation drive of the rotary disk is decelerated by the first decelerating means;
Reverse driving means for reversely driving the rotating disk after the mission is exchanged by the exchange control means ;
The crop harvester is characterized in that the replacement control means includes rotation detection means, and when it is determined by the rotation detection means that the vehicle is decelerating more than a fixed rotation state, the mission is replaced. Machine. In the crop harvester according to claim 1, further,
A second decelerating means for decelerating the reverse drive of the rotary disk by the reverse drive means when the reverse button is released from pressing;
Switching control means for changing a mission for driving the rotating disk in the forward direction based on the fact that the reverse drive of the rotating disk is decelerated by the second decelerating means;
Forward rotation driving means for rotating the rotating disk in the forward direction after the mission is replaced by the replacement control means;
Crop harvester characterized by having. On the downstream side of the rotating disc, there is provided a transport unit for transporting the crop harvested by the rotating disc,
The crop harvester according to claim 1 or 2, wherein the transport unit is rotated forward and reverse simultaneously with forward and reverse rotation of the rotating disk.

Images