JPH0210900Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a reaping pre-processing section that can be raised and lowered at the front of a vehicle body equipped with a crawler traveling device, and
The present invention relates to a combine harvester in which the reaping pre-processing section is configured to be able to be separated forwardly with respect to a vehicle body.

Generally, in the case of a combine harvester in which a reaping pre-processing section is connected to the front part of the vehicle body, the reaping pre-processing section is usually located over almost the entire front part of the vehicle body. The structure and drive system of the reaping pre-processing section are complex, and the reaping pre-processing section is attached to the vehicle body as close as possible to the vehicle body in order to improve the turning performance of the machine by shortening the longitudinal direction of the combine. However, for example, when inspecting or repairing the drive connection between the engine mounted on the car body and the pre-harvesting section, or when inspecting or repairing the front part of the threshing section, the pre-harvesting section provides a visual inspection system. In addition, in the case of repairs, the pre-reaping treatment section limited the work space in which workers could insert tools and instruments. A combine harvester with the above-mentioned structure was designed so that the part could be separated from the vehicle body.

Also, considering the case where the pre-reaping treatment section is separated from the combine harvester with the above configuration, it is found that the pre-reaping treatment section is placed on the ground surface, so the lower surface is generally not flat before reaping. The processing unit may not be placed in a stable position on the ground and may fall over, and the pre-reaping processing unit usually has a relatively complex structure and precisely set device such as a cutting blade on the bottom. Because of this, when the pre-harvest treatment section is placed on the ground surface,
These devices were often soiled with mud and soil, and were sometimes damaged by the weight of the pre-harvesting section itself.

Additionally, in harvesting operations using a combine harvester with the configuration described above, the outside of the crawler traveling device on either side is always close to the planted grain culm on the uncut field side, resulting in slight disturbances in steering operation and Even if the culms are not only in a collapsed position, but even if they are in a slightly reclined position, these planted grain culms can get caught in the front end of the crawler traveling device, which poses a problem that reduces the efficiency of harvesting work. It was hot.

The present invention has been developed in view of the above-mentioned circumstances, and allows the pre-reaping treatment section to be installed without staining or damaging the equipment on the underside of the reaping pre-treatment section when the reaping pre-treatment section is placed on the ground surface. Rational modification of the pre-harvesting processing unit to ensure stable placement on the ground surface and to prevent grain culms on the uncut side from getting caught in the front end of the crawler traveling device during harvesting operations. The purpose is to make it possible to do things by.

The features of the present invention are that the lower part of the frame of the reaping pre-processing section has a posture that receives and prevents the intrusion of planted grain culms to the front of the crawler traveling device, and that the pre-processing section separated from the vehicle body is stably supported on the ground. A member is provided that allows the mounting position to be changed in the stand position for the purpose, and its effects are as follows.

In other words, when the reaping pretreatment section is placed on the ground surface, the members stably support the reaping pretreatment section at a slight distance from the ground surface, so there is no soiling or damage to the equipment on the underside of the reaping pretreatment section. Furthermore, the pre-reaping processing section no longer falls over. During harvesting, the member prevents the planted grain culm from entering the front of the crawler traveling device, which reduces the crawler traveling device's involvement in the planted grain culm, and facilitates the subsequent harvesting of this grain culm. Now I can do it.

In other words, by focusing on the fact that both of the above-mentioned members act at the lower part of the pre-harvesting treatment section and do not need to act at the same time, the two functions can be rationally performed with a simple structure by combining the members. I was able to do it.

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

As shown in FIG. 1, the front part of the vehicle body 5, which is equipped with a driving part 1, a threshing part 2, and a control part 3, and which runs on a crawler traveling device 4, is equipped with a weeding tool 6, a pulling device 7, and a clipper type. A reaping device 8 and a conveying device 10 that supplies the harvested grain culm to the feed chain 9 of the threshing section.
The reaping pretreatment section A, which is constructed by the above, is connected by a hydraulic cylinder 11 so as to be able to swing up and down, thereby forming a combine harvester.

In FIGS. 1 to 5, the reaping pre-processing section A is the vehicle body 5.
In order to connect the reaping pre-processing section A to the vehicle body 5, the rear end of the frame 12, which also serves as a transmission case of the reaping pre-processing section A, is attached to the front part of the vehicle body 5. Pair of left and right pillars 1
3 and 13 so as to be able to swing around the horizontal axis P, and in this mounting structure, by removing the bolt 14, the bracket 15 swings open and can be removed. Further, an end of a link member 17 having a U-shaped cross section is swingably attached to the tip of the cylinder rod 11a of the hydraulic cylinder 11 via a pin 16, and the other end of the link member 17 is connected to the frame 12. Bracket 1 attached to the top of
8 via a pin 19 so as to be swingable. A locking bracket 20 having a locking recess 20a cut out therein is bolted to the intermediate portion of the frame 12, and normally this locking recess 20
A pin 16 of the cylinder rod 11a is engaged with the cylinder rod 11a, and a pin 21 is inserted between the link member 17 and the engagement bracket 20 to maintain this engagement.

In a side view, a trapezoidal mounting member 22 whose lower edge is bent inward into the body is attached to the right and left ends of the pre-reaping treatment section A at the lower end of the frame 12 by bolts 23, 23. The rear part of the crawler traveling device 22 is fixed so as to be close to the left side of the left crawler traveling device 4.

FIG. 2 shows the state of the frame 12 on the left side in the figure when the reaping pre-processing section A has moved it away from the front. Attach the bolt 2 to 22a.
3 and 23 are replaced, the lower edge of the mounting member 22 is fixed in a slightly protruding state below the reaping pretreatment section A, the hydraulic cylinder 11 is driven downward until the lower edge of the mounting member 22 touches the ground surface, and the This is done by removing the pin 21 and then removing the bolt 14 to swing the bracket 15 open and move the vehicle body 5 backward.
This separation is performed so that the cylinder rod 11 of the hydraulic cylinder 11 can be quickly reconnected.
The tip of the cylinder rod 11a is connected to the frame 12 via a link member 17, and as shown in FIGS. 2 and 5, the pin 1 at the tip of the cylinder rod 11a
6 is accurately locked in the locking bracket 20, the tapered tongue piece 24 protruding from the locking bracket 20 contacts the inner surface of the link member 17 and passes through the link member 17, thereby locking the locking bracket 20 in place. The pin 16 is guided into the stopper recess 20a without shifting laterally.

[Brief explanation of the drawing]

The drawings show an embodiment of the combine harvester according to the present invention, FIG. 1 is a side view of the front part of the combine, FIG. 2 is a side view showing the mounting structure of the frame and the vehicle body, and FIG. 3 is a cross-section taken along the line - in FIG. 2. 4 is a cross-sectional view taken along the line -- in FIG. 2, and FIG. 5 is a cross-sectional view taken along the line -- in FIG. 4...Crawler traveling device, 5...Vehicle body, 12...
...Frame, 22... Member, A... Reaping pre-processing section.

Claims (1)

[Scope of utility model registration request] A combine harvester in which a reaping pre-processing section A is provided in the front part of a vehicle body 5 equipped with a crawler traveling device 4 so as to be movable up and down, and the reaping pre-processing section A is configured to be able to be separated forwardly with respect to the vehicle body 5, A crawler traveling device 4 is installed at the bottom of the frame 12 of the reaping pretreatment section A.
A member 22 whose mounting position can be changed is provided in a position for receiving and preventing the intrusion of planted grain culms into the front of the vehicle body 5 and a stand position for stably supporting the pretreatment part A separated from the vehicle body 5. A combine harvester.