JP2721066B2 - Drive structure of combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a raising device, a cutting device, and a transport device. The raising device is used to raise planted grain culm by the raising device, cut by the cutting device, and threshing feed by the transport device. The present invention relates to a drive mechanism for a combine provided with a pre-processing unit for supplying a chain.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned combine, for example, as disclosed in Japanese Utility Model Application Laid-Open No. 56-129232, the drive speed of a preprocessing unit and a threshing feed chain is changed in synchronization with the shift of a traveling device. By doing
Even if the speed and amount of the cereals entering the pre-processing unit and threshing feed chain become large or change due to the traveling speed change, the driving speed of the pre-processing unit and the threshing feed chain may cause the corn culm to enter. In some cases, the pre-processing unit and the threshing feed chain can be driven so that the speed does not exceed or fall short of the speed or the amount of intrusion.

[0003]

Conventionally, although the driving speed of the threshing feed chain changes, the driving speed of the handling drum is constant. Therefore, depending on the degree of change in the running speed and the setting of the feed chain driving speed, Due to the speed increase of the threshing feed chain caused by the speed increase, the speed of transporting the grain culm by the threshing feed chain becomes faster than the rotation speed of the handling cylinder, and threshing straw before the grain stalk is sufficiently threshed. In some cases, threshing grains adhere to the threshing and discharging straw, and threshing failure is carried out together with the threshing and discharging straw.
In addition, due to the deceleration drive of the threshing feed chain caused by the traveling deceleration, the grain culm transport speed by the threshing feed chain is slower than the handling cylinder rotation speed, and the handling action on the grain culm by the handling cylinder becomes excessive. Threshing dust, such as broken straw, was often generated. An object of the present invention is to make it possible to perform operations while ensuring that all of the grain stalk processing and threshing processing by the pre-processing unit and the threshing feed chain are performed irrespective of the traveling speed.

[0004]

According to the drive structure of a combine according to the present invention, in order to achieve the object, in the structure described at the beginning, an automatic operation is performed in conjunction with a shift operation of the traveling device to a speed increasing side. The driving speed of the pre-processing unit and the threshing feed chain changes to a speed increasing side, and the driving speed of the pre-processing unit and the threshing feed chain is automatically changed in conjunction with a shift operation of the traveling device to a deceleration side. A first drive mechanism for driving the pre-processing unit and the threshing feed chain in a state in which the speed changes to a deceleration side; Is changed to the speed increasing side, and the second drive mechanism for driving the handle cylinder in a state where the drive speed of the handle cylinder is automatically changed to the speed reduction side in conjunction with the speed change operation of the traveling device to the deceleration side. The handling mechanism for the second drive mechanism. When the speed is increased or decreased in conjunction with the traveling device, the speed change in which the drive speed of the handling cylinder increases or decreases in accordance with the increase or decrease in the unit speed change of the traveling device is increased for the first drive mechanism. When the threshing feed chain accelerates / decelerates in conjunction with the traveling device, the driving speed of the threshing feed chain is smaller than the speed variation in which the driving speed of the threshing feed chain increases / decreases with the increase / decrease of the unit speed change of the traveling device. Thus, the first drive mechanism and the second drive mechanism are configured.

[0005]

When the speed increasing operation of the traveling device is performed, the first drive mechanism drives the pre-processing unit and the threshing feed chain at an increased speed from before the speed change, and the second drive mechanism shifts the handle cylinder with the speed change operation. Drive faster than before. When the deceleration operation of the traveling device is performed, the first drive mechanism drives the preprocessing unit and the threshing feed chain at a reduced speed from before the speed change, with the speed change operation,
The second drive mechanism drives the handling cylinder at a reduced speed from before the shift. I
The change in the speed of the handling drum due to the running speed change is the threshing feed.
Since it is smaller than the speed change of the chain, the driving speed of the handling cylinder
Is changed within the allowable range, that is,
Rotation speed becomes too fast, causing grain damage and dust
It is too slow or too slow and it is easy to handle shortage
It is easy to avoid poor threshing
Set so that the driving speed of over de Chen varies relatively greatly
Can be determined.

[0006]

According to the present invention, even if the amount and speed of the cereal stalks entering the pre-processing section due to the running speed change, the pre-processing section, the threshing feed chain and the handling cylinder operate at the speed suitable for the cereal stalk processing. Driving, cutting and pulling the stalks in a good condition that hardly occurs and tearing, etc.
The harvested culm is transported in a state where poor threshing such as clogging and tearing, poor handling and overhandling, and excessive generation of threshing dust are not likely to occur. became. Moreover, planting
Traveling equipment is relatively significantly increased or decreased according to the density of cereal stems, etc.
Pre-processing unit and threshing feed chain
To increase or decrease
However, the handling cylinder should not exceed the appropriate range for threshing.
The speed can be increased / decreased in a relatively small range, and
Less damage to grain and poor threshing even when changing at different speed ranges
You can harvest efficiently with good quality.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 2, a raising device 1 and a cutting device 2 acting on a planted grain culm, and a conveying device 3 for conveying the cut culm from the cutting device 2 to the rear of the machine.
Is connected to the front part of the crawler-type traveling machine body 4 so as to swing up and down around the axis X, and is configured to be moved up and down by a lift cylinder C. A threshing device 7 configured to supply the harvested culm to a handling room (not shown) by a threshing feed chain 5 and threshing by a rotating handling cylinder 6, and a control section having a driving seat 8, In preparation for the traveling body 4,
A combine is configured.

In order to enable the driving of the pre-processing unit A and the threshing device 7 and to enable the machine to travel, an engine E is provided at a position below the driver's seat 8 of the traveling machine 4 and the engine E Is configured as shown in FIG. That is, the hydraulic continuously variable transmission 10 configured to transmit the rotational output of the engine E via the transmission belt 9 is attached to the traveling transmission 11 and the output of the continuously variable transmission 10 is controlled. By interlocking the shaft 10a with an input unit (not shown) of the traveling mission 11, the rotational output of the engine E is transmitted to the continuously variable transmission 10 for traveling.
The speed is changed steplessly by the left and right crawler traveling devices 12,
12 is transmitted as a driving force. That is, the speed change operation or the stop operation of the crawler traveling device 12 by the switching operation of the traveling continuously variable transmission 10 is used to perform the traveling speed change operation or the traveling stop operation of the body.
A transmission belt 13 wound around the output shaft 10a, a pre-processing unit drive shaft 15 inserted into the body frame 14 of the pre-processing unit A,
The transmission belt 16 wound around the preprocessing unit drive shaft 15 constitutes a first driving mechanism 17 for the preprocessing unit A and the threshing feed chain 5. That is, the transmission belt 13 transmits the rotating power of the output shaft 10 a to the pre-processing unit drive shaft 15, and the pre-processing unit drive shaft 15 causes the power to be transmitted to the device 1 and the reaper 2 through the transmission shaft 18. , Power is transmitted to the transfer device 3 via the transmission shaft 19,
The transmission belt 16 transmits the rotating power of the preprocessing unit drive shaft 15 to the drive sprocket 5 a of the threshing feed chain 5, so that the first drive mechanism 17 allows the traveling continuously variable transmission 10 to operate.
The driving device 1, the cutting device 2, the transporting device 3, and the threshing feed chain 5 of the pre-processing unit A are driven by using the rotation output of the pre-processing unit A as a driving force. First drive mechanism 1
7 transmits the rotational output of the continuously variable transmission 10 as a driving force so that the traveling speed V of the body changes to a higher speed side as shown in FIG. When the speed change operation of the traveling device 12 to the speed increasing side is performed, the driving speed MV of the preprocessing unit A and the driving speed FV of the threshing feed chain 5 are automatically linked to the speed changing operation.
Is changed to the speed increasing side, and the traveling device 12 by the traveling continuously variable transmission 10 is changed so that the traveling speed V of the aircraft changes to the low speed side.
When the speed change operation is performed to the deceleration side, the drive speeds MV and FV of the preprocessing unit A and the threshing feed chain 5 are automatically changed to the speed reduction side in conjunction with the speed change operation. That is, even if the speed or the amount of the cereal stalk entering the pre-processing unit A changes due to the traveling speed change, the raising device 1, the cutting device 2, the transport device 3, and the threshing feed chain 5
It is possible to operate at a speed that is not too high or low in the speed and quantity of the stalks into which the stalks enter.

A transmission belt 21 wound around an output shaft 20 of the engine E, a transmission device 22, and a belt-type threshing continuously variable transmission 23 constitute a second drive mechanism 24 for driving the handling drum 6. . That is, the transmission belt 21 is connected to the output shaft 20.
Is transmitted to the transmission 22, which transmits the rotational output to the threshing continuously variable transmission 23, and the threshing continuously variable transmission 23 transmits the rotational output to the rotation support shaft 6 a of the handling cylinder 6. Accordingly, the second drive mechanism 24 is configured to transmit the output of the engine E to the rotary support shaft 6a to drive the handling cylinder 6, and to change the drive speed of the handling cylinder 6 by the threshing continuously variable transmission 23. I have. A swing lever type speed change operation tool 2 configured to operate an operation unit (not shown) of the continuously variable transmission 10 via a link mechanism 25 including an operation wire or the like.
6 is linked to an operation unit (not shown) of the threshing continuously variable transmission 23 by a linkage mechanism 27 composed of an operation wire or the like, so as to be linked to a shift operation of the traveling device 12 by the traveling transmission 10. The driving speed of the drum 6 can be changed,
Irrespective of a change in the driving speed of the threshing feed chain 5 due to the traveling speed change, the operation can be performed while the threshing process is performed with high accuracy. That is, as shown in FIG. 3, when the speed of the traveling device 12 is increased by the traveling continuously variable transmission 10 so that the traveling speed V of the aircraft changes to a higher speed side, the linkage mechanism 27 is activated. The threshing continuously variable transmission 23 automatically switches to the speed increasing side in conjunction with the traveling speed change operation for the operation, and the driving speed KV of the handling cylinder 6 is increased.
Changes to the high-speed side. Then, the traveling continuously variable transmission 10 is moved so that the traveling speed V of the body changes to the low speed side.
When the speed change operation of the traveling device 12 is performed to the deceleration side by the operation, the threshing continuously variable transmission device 23 automatically switches to the speed reduction side in conjunction with the traveling speed change operation due to the operation of the linkage mechanism 27, and The drive speed KV of No. 6 changes to the deceleration side.

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

[Another Embodiment] FIG. 4 shows another embodiment of the drive structure.
Is attached to one end of a support frame 29 of a grain stem holding rail 28 for threshing grain stem transport, and a driving sprocket 5a of the threshing feed chain 5 is attached to the preprocessing unit drive shaft 15. That is, the support frame 29
Is connected to the body side plate of the threshing device 7 and is a member excellent in strength, so that the mounting of the pretreatment unit drive shaft 15 and the threshing feed chain 5 can be performed by the support frame 2.
9 is used as a supporting member so that it can be made strong.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Brief description of the drawings]

FIG. 1 Transmission system diagram

FIG. 2 is a side view of the entire combine.

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

FIG. 4 is a schematic view of another embodiment drive structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Raising device 2 Cutting device 3 Transport device 5 Threshing feed chain 6 Handling cylinder 12 Traveling device 17 First drive mechanism 24 Second drive mechanism A Preprocessing unit KV Handling cylinder drive speed dKV Speed change FV Threshing feed chain drive speed dFV speed Change

Claims (1)

(57) [Claims] 1. A raising device (1), a cutting device (2), and a transport device (3), wherein a planted grain culm is raised by the raising device (1) and cut and cut by the cutting device (2). A drive system for a combine having a pre-processing unit (A) for supplying a grain culm to a threshing feed chain (5) by the transport device (3), wherein the drive unit is linked to a speed change operation of a traveling device (12) to a speed increasing side. Then, the driving speed of the pre-processing unit (A) and the threshing feed chain (5) automatically changes to the speed increasing side, and the traveling device (1)
The pre-processing unit (A) and the pre-processing unit (A) are automatically brought into a state in which the drive speed of the pre-processing unit (A) and the threshing feed chain (5) changes to the deceleration side automatically in conjunction with the speed change operation to the deceleration side of 2). A first drive mechanism (17) for driving the threshing feed chain (5); the driving speed of the handle drum (6) is automatically adjusted in conjunction with a shift operation of the traveling device (12) to a speed increasing side; KV) changes to the speed increasing side, and the driving speed (KV) of the handle drum (6) automatically changes to the speed decreasing side in conjunction with the speed change operation of the traveling device (12) to the speed decreasing side. A second drive mechanism (24) for driving the handle cylinder (6), wherein the handle cylinder (6) is located forward for the second drive mechanism (24);
When the vehicle is accelerated or decelerated in conjunction with the traveling device (12),
As the unit speed change (dV) of the device (12) increases or decreases,
As a result, the drive speed (KV) of the handling cylinder (6) increases or decreases.
The speed change (dKV) is equal to the speed of the first drive mechanism (24).
For the threshing feed chain (5)
When accelerating and decelerating in conjunction with (12), the traveling device (1)
2) With the increase / decrease of the unit speed change (dV)
The drive speed (FV) of the threshing feed chain (5) is increased.
As smaller than the decreasing speed change (dFV),
The first drive mechanism (17) and the second drive mechanism (2
The drive structure of the combine that constitutes 4) .