JPH05236820A - Driving structure for combine - Google Patents

Abstract

PURPOSE:To carry out operation while raising planted grain clums, reaping, transporting reaped grain clums and threshing regardless of change of traveling speed. CONSTITUTION:When a traveling device 12 is handled to change speed, a first driving mechanism 17 automatically converts driving velocities of a raising device 1 of a pretreating part A, a reaping device 2, a transporting device 3 and a threshing feed chain 5 to the same accelerating side or decelerating side as the speed change side of the traveling device 12. Or a second driving mechanism 24 automatically converts a driving velocity of a threshing cylinder 6 to the same accelerating side or decelerating side as the speed change side of the traveling device 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a raising device, a mowing device and a conveying device, and causes planting culms to be caused by the raising device and to be cut by the reaping device, and the slaughtered grains to be threshed by the conveying device. The present invention relates to a drive structure for a combine, which includes a pretreatment unit for supplying the chain.

[0002]

2. Description of the Related Art Conventionally, in the above combine, as shown, for example, in Japanese Utility Model Laid-Open No. 56-129232, the driving speeds of the pretreatment section and the threshing feed chain are changed in synchronization with the shift of the traveling device. By doing
Even if the speed or amount of the grain culm entering the pretreatment section or the threshing feed chain increases or changes due to the traveling speed change, the driving speed of the pretreatment section and the threshing feed chain causes the grain culm to enter. In some cases, it was possible to drive the pretreatment section and the threshing feed chain so as to have a proper speed corresponding to the magnitude and change of the speed and the amount of intrusion.

[0003]

Conventionally, although the drive speed of the threshing feed chain changes, the drive speed of the handling cylinder is constant. Therefore, depending on the degree of change of the traveling speed and the setting of the feed chain drive speed, Due to the speed-up drive of the threshing feed chain due to the increase in traveling speed, the transport speed of the grain culms by the threshing feed chain is faster than the rotation speed of the handling cylinder, and the threshing discharge straw is not fully crushed by the grain culms. There is a case where the threshing grains adhere to the threshing discharge straws and the threshing defects are carried out together with the threshing discharge straws.
Also, due to the deceleration drive of the threshing feed chain caused by the traveling deceleration, the transport speed of the grain culms by the threshing feed chain becomes slow relative to the rotation speed of the handling barrel, and the handling action of the handling barrel on the grain culms becomes excessive. There was a case that a lot of thrashing dust such as broken straw was generated. An object of the present invention is to enable work while ensuring that both the grain culm treatment by the pretreatment unit and the threshing feed chain and the threshing treatment are performed satisfactorily regardless of the traveling speed change.

[0004]

In order to achieve the object, the combine drive structure according to the present invention is the same as the one described at the beginning, and is automatically linked to the speed increasing operation of the traveling device. The driving speeds of the pretreatment section and the threshing feed chain change to the speed increasing side, and the driving speeds of the pretreatment section and the threshing feed chain are automatically linked to the speed change operation of the traveling device. Is provided with a first drive mechanism for driving the pretreatment section and the threshing feed chain in a state of changing to a deceleration side, and the driving speed of the handling cylinder is automatically linked to a speed change operation of the traveling device. Changes to the speed-increasing side, and a second drive mechanism for automatically driving the handling cylinder in a state in which the driving speed of the handling cylinder changes to the deceleration side in cooperation with the speed change operation of the traveling device to the deceleration side. It is characterized by being provided. If you set it so that the change in speed of the handling cylinder due to travel speed change is smaller than the change in speed of the threshing feed chain,
It is advantageous as follows.

[0005]

When the speed-increasing shift operation of the traveling device is performed, the first drive mechanism drives the pretreatment section and the threshing feed chain at a speed higher than that before the shift, and the second drive mechanism moves the handling cylinder. Drives faster than before shifting. When the deceleration gear shift operation of the traveling device is performed, the first drive mechanism drives the pretreatment unit and the threshing feed chain at a speed lower than before the gear shift, and the second drive mechanism decelerates the handle cylinder as before the gear shift. Drive. If the change in speed of the handling cylinder due to travel speed change is made smaller than the change in speed of the threshing feed chain, the drive speed of the handling cylinder will change within an allowable range while the drive speed of the threshing feed chain will be relatively large. It can be set to change.

[0006]

EFFECTS OF THE INVENTION Even when the amount and speed of the grain culm entering the pretreatment unit changes while the vehicle is traveling, the pretreatment unit, the threshing feed chain and the handling cylinder are operated at a speed adapted to the grain culm treatment. Drive and cause the grain culm to be pushed down and torn in a good condition where it is difficult to tear off and mow, and further
To enable efficient work with good harvesting efficiency while transporting cut grain culms in a condition that does not cause defective transport such as clogging or tearing, insufficient handling or excessive handling, and excessive threshing dust. became.

[0007]

EXAMPLE As shown in FIG. 2, a raising device 1 and a reaping device 2 which act on planted grain culms, and a conveying device 3 for conveying the slaughtered grain culms from the reaping device 2 to the rear of the machine body.
A pretreatment unit A including the above is connected to the front portion of the crawler-type traveling machine body 4 so as to swing up and down around the axis X, and is configured to be lifted and lowered by the lift cinder C. A threshing device 7 configured to supply a slaughtered culm to a handling room (not shown) by a threshing feed chain 5 and perform a threshing process by a rotating handling barrel 6, and a control unit having a driver's seat 8, In preparation for the traveling body 4,
The combine is configured.

In order to enable driving of the pretreatment section A and the threshing device 7 and to enable traveling of the machine body, an engine E is provided at a position below the driving seat 8 of the traveling machine body 4, and from this engine E. The transmission structure of is constructed as shown in FIG. That is, a hydraulic traveling continuously variable transmission 10 configured to transmit the rotational output of the engine E via the transmission belt 9 is attached to the traveling mission 11, and the output of the traveling continuously variable transmission 10 is provided. By interlocking the shaft 10a with an input portion (not shown) of the traveling mission 11, the rotational output of the engine E is transmitted to the continuously variable transmission 10 for traveling.
To change gears steplessly by the left and right crawler traveling devices 12,
It is configured to be transmitted to 12 as a driving force. That is, the speed change operation and the stop operation of the crawler traveling device 12 by the switching operation of the traveling continuously variable transmission 10 are performed to perform the traveling speed changing operation and the traveling stopping operation of the machine body.
A transmission belt 13 wound around the output shaft 10a, a pretreatment section drive shaft 15 inserted into the machine body frame 14 of the pretreatment section A,
The transmission belt 16 wound around the pretreatment section drive shaft 15 constitutes a first drive mechanism 17 for the pretreatment section A and the threshing feed chain 5. That is, the transmission belt 13 transmits the rotational force of the output shaft 10 a to the pretreatment unit drive shaft 15, and the pretreatment unit drive shaft 15 transmits the rotational force to the raising device 1 and the cutting device 2 via the transmission shaft 18. , Transmission of rotational force to the transfer device 3 via the transmission shaft 19,
The transmission belt 16 transmits the rotational force of the pretreatment unit drive shaft 15 to the drive sprocket 5a of the threshing feed chain 5, so that the first drive mechanism 17 causes the traveling continuously variable transmission 10 to travel.
The driving force of the rotation output of 1 is used as a driving force to drive the raising device 1, the mowing device 2 and the conveying device 3 of the pretreatment unit A, and the threshing feed chain 5. First drive mechanism 1
7 transmits the rotational output of the traveling continuously variable transmission 10 as a driving force, so that the traveling continuously variable transmission 10 is changed so that the traveling speed V of the machine body changes to the high speed side as shown in FIG. When the speed change operation of the traveling device 12 is performed by the drive speed, the drive speed MV of the preprocessing unit A and the drive speed FV of the threshing feed chain 5 are automatically linked with the speed change operation.
To the speed increasing side so that the traveling speed V of the machine body changes to the lower speed side.
When the shift operation to the deceleration side is performed, the drive speeds MV and FV of the preprocessing unit A and the threshing feed chain 5 are automatically changed to the deceleration side in association with the shift operation. That is, even if the speed or amount of the grain culm entering the pretreatment unit A changes due to the traveling speed change, the raising device 1, the mowing device 2, the transport device 3, and the threshing feed chain 5
It is possible to operate at a speed without excess or deficiency in the speed and quantity of grain culms that enter.

A transmission belt 21, a transmission device 22, and a belt-type threshing continuously variable transmission 23 wound around an output shaft 20 of the engine E constitute a second drive mechanism 24 for driving the handling cylinder 6. .. That is, the transmission belt 21 has the output shaft 20.
The transmission power of the rotation power to the transmission device 22, the transmission device 22 transmits the rotation output to the threshing continuously variable transmission 23, and the threshing continuously variable transmission 23 transmits the rotation output to the rotation support shaft 6a of the handling cylinder 6. Thus, the second drive mechanism 24 transmits the output of the engine E to the rotary support shaft 6a to drive the handling cylinder 6, and the threshing continuously variable transmission 23 changes the driving speed of the handling cylinder 6. I am doing it. A rocking lever-type gear shift operation tool 2 configured to operate an operating portion (not shown) of the traveling continuously variable transmission 10 via a linkage mechanism 25 including an operation wire or the like.
6, an operating portion (not shown) of the threshing continuously variable transmission 23 is linked by a linkage mechanism 27 composed of an operation wire or the like, so that the gear shifting operation of the traveling device 12 by the traveling transmission 10 is linked. The drive speed of the handle cylinder 6 can be changed,
The threshing process can be performed while the threshing process is performed accurately regardless of the change in the driving speed of the threshing feed chain 5 due to the traveling speed change. That is, as shown in FIG. 3, when the shifting operation of the traveling continuously variable transmission 10 to the speed increasing side of the traveling device 12 is performed so that the traveling speed V of the machine body changes to the high speed side, the linkage mechanism 27 of the linkage mechanism 27 is changed. Due to the action, the threshing continuously variable transmission 23 is automatically switched to the speed increasing side in association with the traveling speed change operation, and the driving speed KV of the handling cylinder 6 is increased.
Changes to the high speed side. Then, the continuously variable transmission 10 for traveling is used so that the traveling speed V of the airframe changes to the low speed side.
When the speed changing operation of the traveling device 12 is performed by the operation of the traveling mechanism 12, the threshing continuously variable transmission 23 is automatically switched to the deceleration side in cooperation with the traveling speed changing operation due to the action of the linkage mechanism 27. The drive speed KV of 6 changes to the deceleration side.

The relationship between the speed change operation tool 26 and the traveling speed change device 10 and the relationship between the speed change operation tool 26 and the threshing continuously variable transmission 23 are the drive speed FV of the threshing feed chain 5 and the drive speed of the handling cylinder 6. The linkage mechanisms 25 and 27 are configured so that the KV changes according to the relationship shown in FIG. 3, and the drive speed KV of the handle cylinder 6 changes within an allowable range determined by aspects such as handling action. However, the range in which the driving speeds MV and FV of the pretreatment unit A and the threshing feed chain 5 change can be increased. That is, in FIG. 3, dV is a unit speed change amount of the traveling speed V as a unit speed change amount of the traveling device 12. The dFV is a speed change amount at which the drive speed FV of the threshing feed chain 5 changes to the increase side or the decrease side as the traveling speed V changes to the increase side or the decrease side by the unit speed change amount dV. The dKV changes as the traveling speed V increases or decreases by the unit speed change amount dV.
Is the amount of change in speed at which the drive speed KV changes to the increasing side or the decreasing side. Then, the speed variation dKV of the handling cylinder 6 and the speed variation dFV of the threshing feed chain 5
The relationship between and is set such that the speed change amount dKV <the speed change amount dFV.

[Other Embodiments] FIG. 4 shows another embodiment of the drive structure, in which one end of the pretreatment unit drive shaft 15 is connected to one end of a support frame 29 of a grain culm holding rail 28 for transporting threshed grain culms. At the same time as mounting, the drive sprocket 5 a of the threshing feed chain 5 is mounted on the pretreatment unit drive shaft 15. That is, since the support frame 29 is connected to the body side plate of the threshing device 7 and is made of a member having excellent strength, the pretreatment section drive shaft 15 and the threshing feed chain 5 are attached to the support frame 29 by a supporting member. It can be used to make it stronger.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

[Fig. 1] Transmission system diagram

[Fig. 2] Side view of the whole combine

FIG. 3 is an explanatory diagram showing a change relationship between a traveling speed, a preprocessing speed, and a handling cylinder speed.

FIG. 4 is a schematic view of another driving structure.

[Explanation of symbols]

 1 Raising device 2 Mowing device 3 Conveying device 5 Threshing feed chain 6 Throwing barrel 12 Traveling device 17 First driving mechanism 24 Second driving mechanism A Pre-treatment section KV Threshing barrel driving speed dKV Speed variation FV Threshing feed chain driving speed dFV speed Change

Claims (2)

[Claims] 1. A raising device (1), a reaping device (2) and a conveying device (3), wherein a planting culm is caused by the raising device (1) and is cut and reaped by the reaping device (2). A drive structure of a combine, comprising a pretreatment unit (A) for supplying a grain culm to a threshing feed chain (5) by the transport device (3), which is linked to a speed change operation of a traveling device (12). Then, the drive speeds of the pretreatment section (A) and the threshing feed chain (5) are automatically changed to the speed increasing side, and the traveling device (1
In association with the speed change operation to the deceleration side in 2), the pretreatment section (A) and the threshing feed chain (5) are automatically changed to a state in which the driving speeds of the pretreatment section (A) and the threshing feed chain (5) are changed to the deceleration side. A first driving mechanism (17) for driving the threshing feed chain (5) is provided, and the driving speed of the handling cylinder (6) is automatically linked to the speed-changing operation of the traveling device (12) ( KV) changes to the speed-increasing side, and the drive speed (KV) of the handling cylinder (6) automatically changes to the decelerating side in association with the speed-changing operation of the traveling device (12). A drive structure for a combine, comprising a second drive mechanism (24) for driving the handling cylinder (6). 2. The speed change amount (dKV) in which the drive speed (KV) of the handling cylinder (6) increases or decreases in accordance with the increase or decrease in the unit speed change amount (dV) of the traveling device (12), The driving speed (FV) of the threshing feed chain (5) is smaller than the speed change (dFV) that increases or decreases with the increase or decrease of the unit speed change (dV) of the traveling device (12). Drive structure of the combine described.