JPS6147483B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for connecting a reaping section for reaping stem culms and transporting them to the threshing device to the front part of a traveling machine body equipped with a threshing device, so that the reaping section can be operated up and down, and that the reaping section The present invention relates to a combine harvester in which a lifting fulcrum part is supported by a swinging arm that can swing back and forth with respect to a traveling machine body and can be fixed in a backward swinging position.

The above-mentioned combine harvester moves the reaping section forward by allowing the reaping section to be moved back and forth with respect to the traveling machine body while the lifting fulcrum section of the reaping section is swung back and forth with a swinging arm. When the device is moved, the various devices installed between the threshing device and the reaping section are exposed, making it easier to inspect and adjust the devices.Furthermore, after inspecting and adjusting the devices, the reaping section can be moved again. When assembling the reaping part to the traveling machine body, as the reaping part is moved to the side of the traveling machine body, the lifting fulcrum part of the reaping part is automatically moved to an appropriate position with respect to the traveling machine body, thereby speeding up the assembly work. However, the following problem occurred.

That is, with use, play may occur in the pivot portion of the swinging arm, and when this situation occurs, there is a problem that it becomes difficult to fix the swinging arm in the backward swinging position. Ta. In other words, in order to fix the swinging arm, it is necessary to return it to the proper setting position with respect to the support frame provided on the traveling aircraft, but the swinging arm deviates from side to side and returns to the setting proper position. This makes it difficult to fix the swinging arm to the support frame using fixing tools such as bolts.

The present invention has been made with the above-mentioned circumstances in mind, and is provided with a combine harvester having the above-mentioned structure. It is characterized by incorporating a matching guide mechanism.

In other words, since the engagement guide mechanism can be used to accurately return the swinging arm to a predetermined lateral position, even if play occurs in the pivot portion of the swinging arm, it can be avoided. However, the fixing work can always be carried out well. Eventually, the above-mentioned problems were solved and a combine harvester that can be used satisfactorily for a long period of time was obtained.

Embodiments of the present invention will be described in detail below with reference to illustrative drawings.

FIG. 1 shows a side view of the front part of the combine, and the front part of the traveling body is equipped with a crawler traveling device 1, a threshing device 2, etc., and a device 3 for pulling out multiple stalk culms planted in a field. , a reaping unit 8 consisting of a reaping device 4 that cuts the base of the raised stalk culms, an auxiliary conveyance device 5 that merges the harvested stalk culms, a rear conveyance device 7 that conveys the merged stalk culms to the threshing feed chain 6, etc. are connected. Equipped.

As shown in FIG. 3A, the reaping section 8 is attached to an elevating frame 11 which also serves as a transmission case and is pivotably supported vertically and swingably on a bracket 10 fixed to the upper part of a support frame 9 provided on the traveling machine body. The other end of the hydraulic cylinder 12, which is supported and has one end attached to the traveling body, is connected to a bi-folding link mechanism 13 interposed between the elevating frame 11 and the traveling body. The reaping section 8 is configured to be driven up and down with respect to the traveling machine body by the expansion and contraction operation of the hydraulic cylinder 12. Therefore, the reaping section 8 is operated downward to near the ground during reaping work in the field, and is operated upward when traveling on the headland within the field.

The reaping section 8 is separated from the traveling machine body and can be moved back and forth as described below.

That is, the elevating fulcrum part of the reaping part 8, that is, the bracket 10 is pivotally supported by the traveling machine body around the horizontal axis X and can swing back and forth, and in a backward swinging attitude relative to the support frame 9. It is connected to the free end of the swinging arm 14 which can be connected and fixed by
By swinging the arm 14 back and forth, the arm 14 is swing-guided between an appropriate position relative to the traveling aircraft and a position displaced forward from this position.

Further, the end of the link mechanism 13 on the side of the elevating frame is pivotally supported to the elevating frame 11 so as to be swingable around the horizontal axis Y, and is releasably bolted to the elevating frame 11 in a posture along the elevating frame 11. It is pivotally connected to a swinging link 15 that can swing forward and backward, and by swinging this swinging link 15 backward, flexibility in the front and rear direction can be provided between the elevating frame 11 and the link mechanism 13. It is composed of

By extending the hydraulic cylinder 12 in a state in which the swing arm 14 and the support frame 9 are disconnected, the reaping section 8 can be moved forward while its front end touches the ground ( (See FIG. 3B), and furthermore, the swing link 15
By releasing the fixation and manually pulling and moving the reaping section forward, the reaping section can be moved further forward. (See Figure 3 C)
In addition, in order to assemble the reaping section 8 to the traveling machine body again, first push the reaping section 8 backward, and then press the swing link 1.
5 is switched to a position along the elevating frame 11 and fixed in this position, and in this state, when the hydraulic cylinder 12 is operated for shortening, the bracket 10 can be moved to an appropriate position with respect to the traveling body. In addition, 16 in the figure is an auxiliary wheel detachably attached to the reaping part 8,
It is provided to support the reaping section 8 on the ground during the above-mentioned back and forth movement operation.

Therefore, by moving the reaping section 8 forward as described above, the engine 1 disposed between the reaping section 8 and the threshing device 2 as shown in FIG.
7 and the input shaft 18 of the threshing device 2, and a belt transmission mechanism that links the engine 17 and the input shaft 20 of the traveling transmission case 19, etc. are exposed. , these inspections and adjustments can be carried out without being interfered with by the reaping section 8.

21 in FIG. 2 is the mission case 1.
A belt for transmitting the output from 9 to an input pulley 22 provided at the base of the lifting frame 11,
As described above, when the reaping section 8 is moved forward, it is automatically relaxed.

FIG. 4 shows an engagement guide mechanism that receives and guides the free end of the swing arm 14 to a predetermined lateral position when the swing arm 14 swings backward. Extended tongue pieces 14a, 14a
are received and guided by inclined guide surfaces T, T formed at the left and right corners of the support frame 9.

FIG. 5 shows an example of a structure for fixing the swinging arm 14 to the support frame 9, which is configured to lock and fix the swinging arm 14 using a hook-shaped bolt 23. .

[Brief explanation of the drawing]

The drawings illustrate embodiments of the combine harvester according to the present invention, with FIG. 1 being a side view of the front part of the combine, and FIG.
The figure is a schematic side view of the elevating frame attachment part, FIG.
FIG. 5 is a side view showing the fixing structure of the swing arm. 2... Threshing device, 8... Reaping section, 10... Lifting fulcrum section, 14... Swinging arm.

Claims (1)

[Claims] 1. A reaping section 8 is provided at the front of the traveling machine body equipped with the threshing device 2, which reaps the stem culm and conveys it to the threshing device 2.
is coupled to enable vertical and vertical swinging operation, and the vertical fulcrum part 10 of the reaping section 8 is connected to a swinging arm 14 that can be operated to swing back and forth with respect to the traveling machine body and can be fixed in a backward swinging posture. What is claimed is a supported combine harvester, which incorporates an engagement guide mechanism for receiving and guiding the free end of the swing arm 14 to a predetermined lateral position when the swing arm 14 swings backward.