JPS6335548Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a combine harvester in which various devices such as an engine and a traveling transmission case are disposed between a threshing device and a reaping section.

In this type of combine harvester, the threshing device and reaping section are located close to each other, making it difficult to perform maintenance work on the engine, traveling transmission case, etc., and it is necessary to secure a large space to improve work efficiency. It is. As a conventional technique, a technique is known in which a space for maintenance work is secured between the reaping section and the threshing device by pushing the reaping section forward.
However, even with this conventional technology, it is still difficult to inspect the sides of the threshing equipment, such as the engine and traveling mission case, because the threshing equipment is close to each other. Moving the equipment is also very important to facilitate maintenance operations. However, since this threshing equipment is heavy, it requires a great deal of effort and effort to move it manually.In particular, the threshing equipment is equipped with waste straw processing equipment such as straw cutters and waste straw binding devices. In cases where the threshing equipment was equipped with a threshing machine, the entire threshing equipment became very heavy, and the workload was even more significant.

In addition, as a means to reduce the work burden required for moving such a threshing device, it is possible to interpose a cylinder dedicated to moving the threshing device between the traveling machine and the threshing device, but in this case, the cylinder In addition, various fluid pressure devices are required, which has the drawback of not only complicating the structure but also significantly increasing costs.

In view of the above-mentioned circumstances, the present invention has been developed to simplify the structure by effectively utilizing the drive device that is originally equipped in this type of combine harvester to move the threshing device back and forth, which is necessary to secure space for maintenance work. The purpose is to make it easy to carry out while reducing the cost and cost.

The structural feature of the present invention devised to achieve this purpose is that in a combine harvester in which the front part of the traveling machine is connected to a reaping section that is driven up and down as the cylinder expands and contracts, the traveling machine and this A mechanism is provided between the threshing device and the threshing device, which is mounted so as to be slidable in the front and back directions, and a mechanism for fixing and releasing the two is provided, and one end of the cylinder for raising and lowering the reaping section is slidably movable. The structure is such that it can be fixedly connected to the threshing device, and its effects are as follows.

That is, when performing maintenance on the engine, traveling transmission case, etc. disposed between the threshing device and the reaping section, after releasing the fixed connection between the threshing device and the traveling machine body, one end of the threshing device is removed from the threshing device. By operating the cylinder for raising and lowering the reaping part which is or is fixedly connected to the device side, the threshing device is slid rearward using the driving force of the cylinder for raising and lowering the reaping part, and the threshing device and the reaping part are moved together. It is possible to secure enough space between the two in the front and back direction to facilitate maintenance work.

Therefore, in order to secure space for maintenance work, it is necessary to move the threshing device back and forth.
By effectively utilizing the cylinder for lifting and lowering the reaping section originally equipped with this type of combine harvester and the various fluid pressure devices associated therewith, it has been possible to simplify the structure and reduce costs.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a pair of left and right crawler traveling devices 1, 1, an engine E, and a traveling transmission case M are mounted on the upper part of a traveling machine body 2. A threshing device 4 equipped with a straw discharge cutter 3 is mounted on the upper part of the traveling machine body 2 so as to be slidable in the front-rear direction along a guide rail 2A provided on the traveling machine body 2.
A mechanical fixing mechanism 5 for fixing and connecting the two 4, 2 is provided between the two so as to be freely released, and a hydraulic cylinder 6 is provided at the front of the traveling machine body 2.
The combine harvester is constituted by connecting the reaping unit 7 which is driven and raised and lowered in accordance with the extension and retraction of the reaping unit.

In order to configure the fixing mechanism 5, the traveling machine body 2
A member 5A is fixed to the front part of the lower end front part of the threshing device 4 from the front-rear direction to prevent the threshing device 4 from moving forward and upward.
An L-shaped fixing member 5B that can contact the lower end rear portion of the threshing device 4 from above and behind is detachably attached to the traveling machine body 2 via a bolt 5c with a rotation operation part.
By removing B from the traveling body 2, the threshing device 4 can be freely moved backward.

One end of the cylinder 6 for raising and lowering the reaping section is pivotally connected to a mounting section 11 fixed to the front part of the threshing device 4, and the other end is connected to the reaping frame 8 of the reaping section 7 and the traveling body 2. The reaping frame 8 is pivotally connected to the bent link 9 interposed between the
A mechanical fixing mechanism 10 is provided between the reaping unit 7 and the traveling body 2 so that the reaping unit 7 can be fixedly connected to the traveling body 2 in a lowered state and can be released from the fixation.

The fixing mechanism 10 includes a pin 10A fixed to the reaping frame 8, and a hook 10B pivoted to the traveling machine body 2 so as to be able to engage and disengage from the pin 10A.
It is composed of.

When performing maintenance on the engine E, traveling transmission case M, etc. disposed between the threshing device 4 and the reaping section 7, the threshing device 4
At the same time as releasing the fixed connection between the and the traveling aircraft 2,
After the reaping section 7 is fixedly connected to the traveling machine body 2 in a lowered state, the threshing device 4 can be slid rearward by operating the reaping section elevating cylinder 6.

In the above-mentioned embodiment, the reaping section lifting cylinder 6 was permanently installed between the reaping section 7 and the threshing device 4, but as shown in FIG.
It may be implemented by configuring so that one end thereof can be reattached to the attachment portion 12 on the reaping frame 8 side and the attachment portion 11 on the threshing device 4 side in a fixed connected state by swinging back and forth around the horizontal axis P. good. In this case, the fixing mechanism 10 for the reaping section 7 is unnecessary.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the combine harvester according to the present invention, and FIGS. 1 and 2 are overall side views showing a state in which the threshing device is fixed in a predetermined position and a state in which the threshing device is moved backward, and FIG. FIG. 7 is an overall side view showing another embodiment. 2... Traveling machine body, 4... Threshing device, 5, 10...
...Fixing mechanism, 6...Cylinder, 7...Reaping section.

Claims (1)

[Claims for Utility Model Registration] 1. A combine harvester in which a reaping part 7 is connected to the front part of the traveling body 2 and is driven up and down as the cylinder 6 expands and contracts. A mechanism 5 for fixedly connecting these two, 4 to each other is provided between the threshing device 4 which is mounted so as to be slidable in the directions, and a mechanism 5 for fixing and releasing them is provided, and one end of the cylinder 6 for raising and lowering the reaping section is slidably connected to the threshing device 4. A combine harvester characterized in that it is configured to be fixedly connected to the movable threshing device 4 side. 2 The cylinder 6 for raising and lowering the reaping section is connected to the reaping section 7.
and the threshing device 4,
The combine harvester according to claim 1, which is a registered utility model, further comprising a mechanical fixing mechanism 10 that can fixedly connect the reaping section 7 to the traveling machine body 2 in a lowered state and is detachable from the fixing mechanism. 3. The cylinder 6 for raising and lowering the reaping section is configured so that one end thereof can be fixedly connected to the reaping section 7 side and the threshing device 4 side by swinging back and forth about the horizontal axis with respect to the traveling machine body 2. A combine harvester according to claim 1 of the utility model registration claim.