JPH0363332B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a reaping section lateral rotation device for cleaning the reaping section of a combine harvester from clogs and dirt caused by straw waste, and for facilitating repair and inspection. It is.

(b) Conventional technology The reaping section of a combine harvester consists of cutting blades, moving devices, stock conveying devices, upper conveying devices, vertical conveying devices, etc., and these are arranged at complicated angles to each other. This is a part where various problems tend to occur, such as not being completely covered or sealed, dirt and straw debris accumulating in various parts due to the passage of the culm, and oil running out at the oil supply points of each part. Operators have traditionally had to clean, repair, and inspect this part, so they wanted to be able to easily remove it and repair it from the back.

In addition, there have been applications for simple methods for removing the reaping part, but none of these methods have been applied.
Since there was only one pivot point for lateral rotation, when the reaping section was rotated laterally, there were many accidents in which the reaping section and the shelling section, etc. that were close to each other came into contact with each other. Furthermore, if the lateral rotation is to be performed using a single pivot point, it is necessary to provide a wide gap between the shelling device and the reaping section, resulting in an increase in the overall length of the combine harvester.

(C) Problems to be Solved by the Invention The present invention solves these problems and provides two pivot points each consisting of a vertical shaft so that horizontal rotation can be easily made without contacting other parts. The reaping section can be pulled out forward with a button, and then rotated laterally from a position where there is no fear of engagement with other parts, and the reaping section can be rotated and removed laterally with a simple operation. This is what I did.

(d) Means for solving the problems The problems to be solved by the present invention are as described above.
Next, means for solving the problem will be explained.

In order to enable inspection and repair between the rear surface of the reaping section A of the combine harvester and the dehusking device B, the reaping section A can be laterally rotated with respect to the dehusking device B. horizontally installed, a first pivot support 3 is provided at the front of the chassis 16, a connecting rod 2 protrudes from the first pivot support 3, and the connecting rod 2
A second pivot support 5 is provided at the tip of the pivot support 5, and the reaping section A is supported on the second pivot support 5, and in the initial stage when the reaping section A is laterally rotated, the first pivot support is Branch 3
By rotating only or both the first rotation pivot support 3 and the second rotation pivot support 5, the reaping section A is moved forward, and then, at the position moved forward, the reaping section A is moved forward. 1st rotation pivot branch 3 or 2nd rotation pivot branch 5
Alternatively, the reaping section A is configured to rotate laterally around both of them.

(E) Embodiments The problems to be solved by the present invention and the means for solving them are as described above, and the structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

Fig. 1 is an overall side view of the combine harvester of the present invention, Fig. 2 is a plan view of the front part of the combine, with the reaping section placed in the normal position, and Fig. 3 is a state in which the reaping section has been moved forward. FIG. 4 is a plan view of the reaping section laterally rotated, FIG. 5 is an enlarged side view of the first pivot support 3 and the second pivot support 5, and FIG. 7 is a similarly enlarged plan view, and FIG. 7 is a similarly enlarged rear partial sectional view.

Referring to FIG. 1, the overall structure of the combine harvester will be explained.

A shelling device B, a toughness storage tank 13, etc. are arranged on the crawler type traveling device 1. Shelling device B
A reaping part A is movable up and down in front of the reaping part A using a hydraulic cylinder 14, and is movable up and down around a pivoting support 7 for vertical movement. The first part which is the main part of the present invention
The pivot support 3 and the second pivot support 5 are arranged on the opposite side of the seat 21.

This will be explained in more detail with reference to FIGS. 2, 3, and 4. Reaping part A has left and right grass dividing boards 10L, 1
The lodging culm is moved using 0R and the left and right moving devices 12L and 12R. Although the stock head transport device and the upper transport device are not shown, after being transported by these, the stock head portion is transferred to the feed chain 11 by the vertical transport device 9.

The driving force for the reaping section A is input to the input pulley 26 via a V-belt, the speed is changed by the reaping transmission case 8, and the driving force is transmitted to the vertical conveyance device 9 and the moving device by the shaft in the vertical movement pivot portion 7. ing.

In addition, a support frame 34 is provided for driving the cutting blade and stock head conveying device downward from the vertical pivot support 7.
is prominent. The support frame 34 is configured to be lifted by a hydraulic cylinder 14 for vertical movement. These vertically movable pivot parts 7 of the reaping section A are supported by a bearing support stand 20 on the right side and a bearing support stand 4 on the left side.

The left bearing support base 4 is fixedly mounted on the second pivot support 5. The bearing support stand 20 on the right side is fixed on the chassis, and the hook 2
8 and a locking lever 18, the projecting pin 27 of the vertically moving pivot support 7 is locked and fixed.

That is, after the vertically movable pivot portion 7 is fixed against the bearing support base 20, the hook 28 is locked, and the locking lever 18 is used to prevent it from coming off.

Further, a locking piece 29 protrudes from the connecting rod 2 that connects the second pivot support 5 and the first pivot support 3.
A hook 30 is hooked onto this locking piece 29 and fixed using the locking lever 19. This makes it possible to completely lock left and right movement. 21 is a seat, 24 is a step, 23 is an operating column, 22 is a left/right steering lever, and 25 is a speed change lever.

In addition, a chassis 16 is installed horizontally at the front of the shelling device B, and a first pivot support 3 is provided on the chassis 16. A connecting rod 2 is protruded from the first pivot support 3, and A second pivot support 5 is constructed at the tip of the rod 2. A reaping section A is supported on the second pivot support 5. Further, a horizontal rod 6 protrudes from the second pivot support 5, and a hydraulic cylinder 14 is pivotally supported at the tip of the horizontal rod 6.

With the structure described above, the hydraulic cylinder 14 also rotates when the reaping section A rotates in the lateral direction, so it is no longer necessary to remove the hydraulic cylinder from the support frame 34 each time it rotates.

However, since the hydraulic cylinder 14 is supported only from the side by the horizontal rod 6, when the hydraulic cylinder 14 expands and contracts, the support frame is heavier.
There is a risk that the horizontal rod will bend backwards and the reaping section will not rotate.

In order to eliminate this inconvenience, the hydraulic cylinder 14
The holder 32 is applied to the abutment plate 15 fixed to the shear seat 33, and this reinforces the strength that is lacking in the horizontal rod 6 and serves as the base point for expansion and contraction of the hydraulic cylinder, and uses this as a base to push the support frame 34 upward. It has been constructed as follows. Further, a guide bent portion 15a is provided at the tip so that the holder of the hydraulic cylinder 14 can be easily placed on the contact plate 15.

Further, among the two pivot parts 3 and 5, the first pivot part 3 is supported from the chassis 16,
In addition, it is strong because there is a reinforcing rod at the top, but since the second pivot support 5 is cantilevered only by the connecting rod 2, there is a risk of it being damaged when the bending torque is large due to the weight of the reaping section. . In order to prevent this, a lower support stand 17 is protruded from the chassis 16, and the base of the horizontal rod 6 is placed on this for reinforcement. A guide bending portion 17a is also formed here, and when the horizontal rod 6 is rotated and returned to its original position, the horizontal rod 6 rests on this lower support stand 17 to support bending due to the load of the combine harvester.

As shown in FIGS. 5, 6, and 7, 2
A pivot point is constructed. Shyashi 1
A support body 35 protrudes forward from the support body 6, and a vertical shaft 3b is protruded from the tip end of the support body 35. vertical axis 3b
The cylindrical body 3a of the rotational pivot support 3 is loosely fitted into the cylindrical body 3 through upper and lower bearings 3c, 3c. This cylinder 3
A connecting rod 2 protrudes from a, and a cylindrical body 5b of a rotating pivot portion 5 is fixed at the tip of the connecting rod 2. Cylindrical body 5
A vertical shaft 5c is loosely fitted to b, a base 5a of a bearing support 4 is fixed to the upper end of this vertical shaft 5c, and a horizontal rod 6 for supporting a hydraulic cylinder 6 is fixed to the lower part of the vertical shaft 5c. has been done.

Further, 31 is a reinforcing rod that is projected from the shear sea or shelling device side to the upper end of the vertical shaft 3b, and is reinforced to prevent the rotational pivot portion 5 from being destroyed by bending force.

(f) Effect of the invention The operation based on the above configuration will be explained.

In normal working or running conditions, as shown in FIG. 2, the reaping section A is fixed by locking levers 18 and 19 so that it cannot be moved from side to side with hooks.

If the cutting part is clogged with straw waste and you want to clean it, or if the culm is difficult to remove,
When it is necessary to repair, inspect, or lubricate each part, remove the locking levers 18 and 19 and first pull out the reaping part A forward to the state shown in FIG. 3.

At this time, if you rotate it to the side without pulling it forward, the feed chain 11 and vertical conveyance device 9 will come into contact with each other at the pivot point because the reaping section A and shelling device B are in close contact with each other to shorten the overall length. It will break. First, it is pulled forward to create a gap between the reaping section A and the shelling device B, and then it is rotated to the side as shown in Fig. 4.

First, pull out the reaping part A forward and remove the shelling device B.
In order to eliminate interference with the feed chain 11, both the first rotation pivot 3 and the bearing support 4 are rotated and pulled out forward. In this case, if the reaping part A is rotated only around the second rotation pivot 5, it will interfere with the shelling device B or the feed chain 11, so the rotation must be made around the first rotation pivot 3. With this, the reaping part A is pulled out by rotating only the first pivot support 3 or around the first pivot support 3 and the second pivot support 5. Next, after being pulled forward sufficiently, the reaping part A is moved around the second pivot part 5, the first pivot part 3, or both. It rotates to the side.

When returning to the original position, the horizontal rod 6 for supporting the hydraulic cylinder has a lower support base 17, a guide bent portion 17a on the contact plate 15, It is placed smoothly along 15a to compensate for the lack of strength of the horizontal rod.

(G) Effects of the Invention Since the present invention is configured as described above, it has the following effects.

First, in a configuration in which the reaping part A is rotated in the lateral direction with respect to the body of the combine, two rotation pivot parts each having a vertical axis are provided, the first rotation pivot part 3 and the second rotation pivot part 3.
Since the pivoting support 5 is used, when the reaping section is rotated and released, it is first brought forward, and the reaping section A and shelling device B are moved forward.
Since the space between the reaping part and the shelling device can be sufficiently opened, there is no risk of the parts coming into contact with each other, and horizontal rotation is possible. Therefore, there is no need to leave a gap between the shelling device and the reaping section from the beginning, and the overall length can be kept the same as before.

Second, by enabling lateral rotation in this way, it is possible to easily remove clogged culms and accumulations of straw waste, making repairs, inspections, maintenance, and lubrication easier. It became.

[Brief explanation of drawings]

Fig. 1 is an overall side view of the combine harvester of the present invention, Fig. 2 is a plan view of the front part of the combine, with the reaping section placed in the normal position, and Fig. 3 is a state in which the reaping section has been moved forward. 4 is a plan view of the reaping section laterally rotated, FIG. 5 is an enlarged side view of the lateral rotation pivot, FIG. 6 is an enlarged plan view, and FIG. It is also an enlarged rear partial sectional view. A...Reaping section, B...Shelling device, 3...First rotational pivot support, 5...Second rotational pivot support, 3b, 5b...
...Vertical axis, 11...Feed chain, 16...
Shayashi.

Claims (1)

[Claims] 1 In order to enable inspection and repair between the rear surface of the reaping section A of the combine harvester and the dehusking device B, a shear seam is installed at the front of the dehusking device B in a configuration in which the reaping section A can be rotated laterally with respect to the dehusking device B. 16 is installed horizontally, and a first pivot support 3 is provided at the front of the chassis 16,
A connecting rod 2 protrudes from the first pivoting support 3, a second pivoting support 5 is provided at the tip of the connecting rod 2, a reaping section A is supported on the second pivoting support 5, and the reaping section A In the initial stage of horizontally rotating the first pivot support 3
By rotating only or both the first rotation pivot support 3 and the second rotation pivot support 5, the reaping section A is moved forward, and then, at the position moved forward, the reaping section A is moved forward. 1st rotation pivot branch 3 or 2nd rotation pivot branch 5
A lateral rotation device for a combine harvester, characterized in that the reaping section A is configured to rotate laterally around either or both of the reaping sections.