JPS6237935B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combine harvester in which a reaping section for reaping stem culms and conveying the same to the threshing device is connected to the front part of a traveling machine equipped with a threshing device so as to be operable to raise and lower the culm, In order to make it easier to inspect and adjust the various devices disposed between the threshing device and the reaping section by making it possible to move the reaping section to a position displaced forward from the traveling machine body, the reaping section is moved after inspection and adjustment. The purpose is to enable quick and easy reassembly of the parts to the fuselage.

In the combine harvester described above, various devices such as a belt transmission mechanism that interlocks the engine and the traveling transmission case and a belt transmission mechanism that interlocks the engine and the threshing device are disposed between the threshing device and the reaping section.
When inspecting and adjusting these devices, the reaping section must be removed from the traveling machine body to expose the devices, but this poses the following problem.

In other words, when the reaping section that has been removed from the traveling machine body is reassembled to the traveling machine body after inspection and adjustment,
It is difficult and time-consuming for unskilled workers to move the reaping section, which is in a free state relative to the traveling machine body, to the traveling machine body while aligning its lifting fulcrum to the connection position to the traveling machine body. It has become difficult to perform assembly work quickly.

The present invention has been made with the above-mentioned circumstances in mind, and the technical feature thereof is that a reaping section that swings up and down by the operation of a fluid pressure cylinder is installed at the front of a traveling machine body equipped with a threshing device. In the combine harvester, a swinging arm is configured such that the lower end thereof is pivoted to a support frame provided on the traveling body so as to be swingable back and forth, and is configured to be fixed to the support frame at a rearward displaced position; A bending link mechanism is provided between the traveling machine body and the reaping section, and a vertical swing fulcrum of the reaping section is supported by an upper end of the swinging arm, and the bending link mechanism and the traveling machine body are connected to each other. The above-mentioned fluid pressure cylinder is installed between them, and its effects are as follows.

That is, when inspecting or adjusting the belt transmission mechanism between the reaping section and the traveling machine body with the above configuration, the swing arm is released from the support frame and the bending link mechanism is extended by the action of the fluid pressure cylinder. At the same time, the swinging arm is moved forward to pull out the vertical swinging fulcrum of the reaping section from the traveling body, thereby greatly exposing various devices such as the belt transmission mechanism. When assembling the reaping section to the traveling machine body side, when the reaping section is pushed into the traveling machine body side, the reaping section is guided by the swing arm and guided to a predetermined connection position. Therefore, with the above configuration, the reaping section can be moved easily using the existing fluid pressure cylinder driving force, and the reaping section can be simply moved to the traveling machine without the operator having to perform any special positioning operations. The vertical movement of the reaping section can be automatically moved to the desired connecting position by simply moving the mowing section. In the end, the above-mentioned problems have been solved, and a combine harvester has been obtained which allows even an unskilled person to quickly and easily assemble the reaping section after inspecting and adjusting the various devices.

Embodiments of the present invention will be described in detail below with reference to the 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 up multiple stalk culms planted in a field. , a reaping unit 8 consisting of a reaping device 1 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 pivotably supported vertically on a bracket 10 which is bolted to a support frame 9 provided on the traveling machine body so that the connection can be released. The other end of a hydraulic cylinder 12, which is supported by a dual-purpose lifting frame 11 and has one end attached to the traveling machine body, is connected to a bi-folding link mechanism 13 interposed between the lifting frame 11 and the traveling machine body. connected.

The reaping section 8 is configured to be driven up and down and swung relative to the traveling machine 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 a field, and is operated upward when traveling on established land in a field or on a road.

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 and lowering fulcrum of the reaping section 8, that is, the bracket 10 is pivoted to the traveling machine body around the horizontal axis X, and is a swinging arm 14 that can swing back and forth.
The arm 14 is connected to the free end of the bracket 10, and by swinging the arm 14 back and forth, the bracket 10 is
A mechanism is configured that guides the vehicle between a position where it is connected to the traveling body 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 on 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

When the bracket 10 is disconnected from the support frame 9, the hydraulic cylinder 12 is extended, so that the cutting section 8 can be moved forward while its front end touches the ground. It's summery. (See Figure 3 B) Also,
If the swing link 15 is released,
By manually pulling and moving the reaping section forward, the reaping section can be moved further forward. (See Figure 3 C) Also, in order to assemble the reaping section 8 to the traveling machine body again, first push the reaping section 8 backward, switch the swing link 15 to a position along the lifting frame 11, and change the position to this position. If the hydraulic cylinder 12 is operated to shorten the bracket 10 in this state, the bracket 10 can be moved to the position where it is connected to the support frame 9. Reference numeral 16 in FIG. 1 is an auxiliary wheel detachably attached to the reaping section 8, and is provided to support the reaping section 8 on the ground during the above-mentioned back and forth movement.

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. Also, 2 in Figure 2
1 is an input pulley 2 provided at the base of the lifting frame 11 for receiving the output from the transmission case 19;
2, and is designed to automatically relax when the reaping section 8 is moved forward as described above.

FIG. 4 shows an application example of the present invention, in which a locking piece that automatically locks the pin 23 fixed to the swinging arm 14 as the swinging arm 14 swings back is shown in FIG. 24 is provided so as to be swingable to switch to the unlocked state, which is convenient when assembling the reaping section 8.

Incidentally, although reference numerals are written in the claims section for convenience of comparison with the drawings, it is clear from the description that the present invention is not limited to the structure of the attached drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the combine harvester according to the present invention, and FIG. 1 is a side view of the front part of the combine, FIG. 2 is a schematic side view of the lifting frame attachment part, and FIG.
B and C are side views showing the forward and backward movement of the elevating frame, and FIG. 4 is a side view of an applied example. 2... Threshing device, 8... Reaping section, 10... Lifting fulcrum section, 14... Swinging arm, 9... Support frame, 1
2...Fluid pressure cylinder, 13...Bend-bending link mechanism.

Claims (1)

[Claims] 1 A reaping section 8 that swings up and down by the operation of a fluid pressure cylinder 12 is installed at the front of the traveling machine body on which the threshing device 2 is mounted.
In the combine harvester, the swinging arm is configured such that its lower end is pivoted to a support frame 9 provided on the traveling body so as to be swingable back and forth, and configured to be fixed to the support frame 9 at a position changed rearward. 14, and a bending link mechanism 13 installed between the traveling machine body and the reaping section 8, and a vertical swing fulcrum of the reaping section 8 is supported by the upper end of the swinging arm 14, and the bending link mechanism 13 is installed between the traveling machine body and the reaping section 8. A combine harvester characterized in that the fluid pressure cylinder 12 is installed between a link mechanism 13 and the traveling machine body.