JPH0363333B2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention is useful for cleaning clogs in the reaping section of a combine harvester, lubricating, and inspecting, maintaining, and repairing various parts.
This relates to a configuration in which only the reaping section can be rotated in the lateral direction with respect to the traveling section and the shelling device B.

(b) Prior Art Conventionally, configurations in which the reaping section is removed or pulled forward for the same purpose have been known. However, the task of removing the reaping section cannot be done by one person and requires an assistant, and simply pulling the reaping section forward does not allow sufficient access to the back of the reaping section for inspection and repair work. There was a problem.

Also, by rotating the reaping part around the lateral pivot point,
Techniques for opening were also known, but they had problems such as when rotating, they engaged with the feed chain of the shelling section, which was arranged overlappingly near the reaping section, and the feed chain was pinched and destroyed.

(C) Problems to be Solved by the Invention The present invention provides two pivot points in order to solve the problems of this lateral rotation device, and first, the first pivot point and the second pivot point are connected to each other. By pivoting substantially forward about the center, the engagement with the front part of the shelling device is released, and then by rotating laterally about the second rotation pivot, the engagement with the shelling device is released. The opening state is widened in between, and it can be operated by one operator. However, if the order of this rotation is incorrect, the shelled portion will be caught, so a regulating plate for regulating this rotation order is provided near the pivot point.

(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 supports the reaping section A. 3 only, or the first pivot support 3 and the second pivot support 5
By rotating both pivots, the reaping section A is moved forward, and then at the forwardly moved position,
Furthermore, the reaping part A is configured to be rotated laterally around the first rotation pivot part 3 or the second rotation pivot part 5, or both, and a rotation order regulating stopper is provided near the second rotation pivot part 5. 39.

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

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. The plan view of Figure 4 is then,
FIG. 5 is an enlarged side view of the lateral rotation pivot, FIG. 6 is an enlarged plan view, and FIG. 7 is an enlarged rear partial sectional view. .

Referring to FIG. 1, the overall structure of the combine harvester will be explained. A shelling device B and a paddy storage tank 13 are arranged on a crawler-type traveling device 1 forming a traveling section. In front of the shelling device B, a reaping section A is movable up and down by a hydraulic cylinder 14, and is movable up and down around a vertical pivot support 7. The first pivot support 3 and the second pivot support 5 of the combine harvester of the present invention 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 division boards 10L, 1
A lodging shell culm is caused by 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 right bearing support stand 20 is fixedly installed on the chassis 16, and is configured to lock and fix the protruding pin 27 of the vertically movable pivot part 7 by a locking device constituted by a hook 28 and a locking lever 18. are doing. That is, after the vertical movement pivot portion 7 is fixed against the bearing support base 20, the hook 28 is
The locking lever 18 is used to lock it and 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. 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 this configuration, when the reaping section moves forward and rotates in the lateral direction, the hydraulic cylinder 14 also moves, so each time the reaping section rotates, the hydraulic cylinder 14 moves.
4 from the support frame 34 is no longer necessary.

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 solve this problem, hydraulic cylinder 1
The holder 32 of No. 4 is applied to the abutment plate 15 fixed to the sheath 33, which reinforces the strength of the horizontal rod 6, and uses this as a base point for expansion and contraction of the hydraulic cylinder 14. Based on this, the support frame 34 is moved upward. It is designed to be pushed. 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.

In addition, the first pivot support 3 and the second pivot support 5 2
Of the three pivot supports, the first pivot support 3 is supported by the chassis and has a reinforcing rod at the top, so it is strong, but the second pivot support 5 is only supported by the connecting rod 2. Since it is held and supported, there is a risk of breakage when the bending torque is large due to the weight of the cutting section.

In order to prevent this, a lower support stand 17 is projected by the sheath 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 returns to its original position, this lower support base 17
The horizontal rod 6 rests on it and supports the bending caused by 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 first pivot support 3 is loosely fitted through upper and lower bearings 3c, 3c. A connecting rod 2 protrudes from the cylinder 3a, and a cylinder 5b of the second pivot support 5 is fixedly provided at the end of the connecting rod 2. A vertical shaft 5c is loosely fitted into the cylinder 5b, a base 5a of a bearing support 4 is fixed to the upper end of the vertical shaft 5c, and a horizontal rod 6 for supporting the hydraulic cylinder 14 is fixed to the lower part of the vertical shaft 5c. has been done.

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

In a combine harvester in which only the reaping part A can be laterally rotated and is provided with such a first rotational pivot part 3 and a first rotational pivot part 5, the reaping part A can be moved laterally from the state during normal reaping work. When releasing the rotation in the direction,
First, rotate the rotation order regulating stopper 39 so as not to make a mistake in the order of rotating forward in a manner close to parallel movement and then rotating to open sideways.
It is provided at the base 5a of the bearing support stand 4. That is, a rotation order regulating stopper 39 is provided near the second lateral rotation pivot support 5 to prevent lateral rotation from occurring until after the forward rotation has been completed. It is something.

To explain in more detail, FIG. 8 shows the first pivot support 3 and the second pivot support 5.
FIG. 9 is a plan view showing lateral rotation, FIG. 9 is a plan view showing forward movement, and FIG. 10 is a rear view.

The bearing support stand 4 and the base portion 5a are the sides that rotate with respect to the cylinder body 5b together with the vertical shaft 5c. This base 5a
A rotation order regulating stopper 39 is provided to protrude further downward, and when the reaping section is completely stored, the rotation order regulating stopper 39 comes into contact with the front surface of the connecting rod 2, as shown in the base 5a of FIG. There is.

Therefore, when drawing the reaping section forward from this state, the structure is such that it cannot be pulled out only by rotating around the second pivot support 5. It is necessary to draw out the drawer with rotation around the first pivot support 3. There is no rotation about the second pivot support 5, and only rotation about the first pivot support 3 allows the drawer to be drawn out.

Even if an attempt is made to rotate forward only about the second rotation pivot support 5, the rotation cannot be made. Therefore, as shown in FIG.
Rotate the connecting rod 2 and horizontal rod 6 at the second rotation pivot branch 5.
It rotates forward as if folding.

In other words, unless it rotates forward around the first rotation pivot support 3, it cannot move forward.

Due to this rotation of the base portion 5a toward 5a', the rotation order regulating stopper 39 is separated from the connecting rod 2 and forms an angle m°. Therefore, as shown in FIG. 8, the base 5a' can be rotated laterally by this angle m° around the second pivot support 5 to the position 5a''. Even if you are storing the items in this order, they will not fit unless they are stored in this order.

(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 rotated to the left or right using hooks.

When the cutting part is clogged with straw waste and you want to clean it, or when the clog in 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 the reaping section A forward to the state shown in FIG. 3.

At this time, if the reaping part A tries to pull it forward only by rotating around the second pivot support 5 without rotating around the first rotation support 3, This is because the reaping section A interferes with the feed chain 11 and the like. Furthermore, even if the rotation is not performed around the second rotation pivot 5, as long as the rotation is centered around the first rotation pivot 3, no interference with the feed chain 11, etc. will occur. . Therefore, the rotation order regulating stopper 39 restricts the operation of pulling out the reaping section A forward only by rotation about the second rotation pivot portion 5.

If the reaping part A is pulled forward without rotating around the first pivot support 3, the reaping part A and shelling device B are in close contact with each other to shorten the overall length, so the rotation pivot The feed chain 11 and vertical conveyance device 9 come into contact with each other at the branch and break. First, pull it forward to rotate around the first rotation pivot 3 to open a gap between the reaping part A and the shelling device B, and then rotate it to the side as shown in Figure 4. be.

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 and compensates 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, by providing two points, the first pivot support 3 and the second pivot support 5, the reaping portion A can be rotated forward about the first pivot support 3. Then, it was possible to release the polymerized state of the shelled part B, and then it was able to rotate largely by rotating laterally around the second rotation pivot support 5. Furthermore, even if it is not possible to rotate horizontally as it is, it is now possible to do so by rotating in sequence.

Second, since there are two pivot points, these two
If the order of rotation in the direction is wrong, the reaping section will rotate around the second rotation support 5 instead of around the first rotation support 3. The tip of the feed chain could get caught between A and shelling device B, causing damage, but by providing a rotation order regulating stopper, this problem no longer occurs.

Thirdly, by providing the rotation order regulating stopper 39 in the vicinity of the second rotation pivot portion 5, the structure of the rotation order regulating stopper 39 is simplified and accuracy is increased.

[Brief explanation of drawings]

Figure 1 is an overall side view of the combine harvester, Figure 2 is a plan view of the front of the combine, with the reaping part in its normal position, and Figure 3 shows the reaping part rotated forward. A plan view, FIG. 4 is a plan view with the reaping section laterally rotated, FIG. 5 is an enlarged side view of the lateral rotation pivot, and FIG. 6 is an enlarged plan view,
Fig. 7 is an enlarged partial cross-sectional view of the rear side, Fig. 8 is a plan view of the pivot parts 3 and 5, showing lateral rotation, and Fig. 9 is a diagram showing forward rotation. drawing,
FIG. 10 is also a rear view. A...Reaping part, B...Shelling part, P...Traveling part,
3...First rotation branch, 5...Second rotation branch,
39... Rotation order regulation stopper.

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
Or horizontal rotation of the reaping section of a combine, characterized in that the reaping section A is configured to rotate laterally around both of them, and a rotation order regulating stopper 39 is provided in the vicinity of the second rotation pivot support 5. Device.