JPS625982Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a combine harvester in which a reaping pre-processing section, which is narrower in width than the overall width of the left and right crawlers, is connected to the front part of a traveling machine equipped with left and right crawlers and is offset to one side of the machine. This invention relates to a crawler traveling device.

Generally, the basic reaping mode of the combine harvester with the above configuration is to travel with the side where the reaping pre-processing section is deviated as the uncut side, and the frequency of turning to the side where the reaping pre-processing section is deviated is on the opposite side. is higher than that to.

The crawler running device of the combine is equipped to prevent the machine from sinking in wet fields, but in extremely soft or viscous wet fields, mud can become clogged between the lugs protruding from the outer surface of the crawler. ,
The soil may be sheared and a so-called slip phenomenon may occur, making it impossible to obtain sufficient thrust.In particular, when the drive of one crawler is cut off and steering is performed using only the thrust of the other crawler, and long crawlers are used in the front and rear. When making a turn by moving sideways, the propulsion resistance during the turn is considerably greater than when moving straight, so as mentioned above, the reduction in thrust due to mud clogging will significantly reduce turning performance. It was hot. In addition, as a means of increasing the thrust of the crawler traveling device, it has been considered to form notches at an appropriate pitch on the side edges of the crawler, but as the crawler travels in wetlands, it is considered that the crawler may penetrate into the inner circumferential surface of the crawler through these notches. There is a phenomenon in which mud adheres and grows and becomes a large clod that rolls out of the crawler.If such a thrust increasing function is given to the crawler corresponding to the uncut side unnecessarily, the rolled clod can cause the uncut stem culm to fall. This causes another problem, such as being pushed over and becoming an obstacle during the next reaping process.

The present invention focuses on this point, and by rationally configuring the side edges of the crawler in an uneven shape, the above-mentioned troubles are avoided and good propulsive force, straight running performance, and turning performance are achieved. An object of the present invention is to provide a crawler traveling device obtained by the present invention.

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

As shown in FIG. 1, a threshing device 3 is mounted on a traveling machine 11 equipped with a crawler traveling device 1 and a control section 2, and at the same time, a threshing device 3 is mounted on the front of the machine, and the stems and culms planted in the field are raised up and their roots are removed. A reaping pre-processing section 5 for reaping and conveying the reaped stem culms to the feed chain 4 of the threshing device 3 at the rear of the machine is connected in a vertically movable manner, and this reaping pre-processing section 5 is connected to the entire left and right crawlers 1a, 1b. It is narrower than the width and is offset to one side of the machine on the opposite side from the control section 2, so that it is located on the offset side of the reaping pre-processing section 5, that is, the left side in the forward direction in Fig. 2. The combine harvester is configured so that the basic cutting mode is rotary cutting or reciprocating cutting with the area on the uncut side.

As shown in FIGS. 1 and 2, the crawler traveling device 1 includes a drive wheel body 7, a driven wheel body 8, and a plurality of guide wheels 9, which are mounted on a pair of left and right track frames 6. At the same time, the crawlers 1a, 1b having propulsion lugs 10 protruding from the contact surface side at an appropriate pitch in the longitudinal direction are wound around the sides of the left and right crawlers 1a, 1b on which the reaping pretreatment section 5 is deviated. The edges A and C are straight side edges with the same specifications on the left and right, and the other edges B and D are uneven side edges with notches 1c formed at appropriate pitches in the longitudinal direction of the crawler. When traveling on the ground, the uneven side edges B and C that penetrate into the ground and the propulsion lug 10 greatly improve the propulsive force, and the pre-cutting section 5 is always deflected to remove uncut stem culms. This improves the turning performance in round mowing, etc. where the machine is run along one side of the machine, and the uneven side edge B,
The structure is designed to prevent lumps of mud caused by D from falling onto the uncut land side.

In addition, the uneven side edges of the other side edges B and D of the left and right crawlers 1a and 1b are roughened with relatively large notches 1c, as shown in FIG. 3A, so that the sum of the notch areas is relatively small. For example, as shown in Fig. 3B, a relatively small notch 1c is formed with a small pitch to reduce the fall of lumps of mud to the side of the other side edge D.
It may also be configured to suppress the occurrence of troubles due to muddy soil during cutting work and the like.

In addition, as shown in Fig. 4, the left and right crawlers 1
The side edges A and C on the side where the reaping pre-treatment section 5 of a and 1b is deviated are attached to the crawler so as to prevent mud from entering into the inner circumferential surface of the crawler winding from the notch 1c when traveling on soft ground. Relatively large notches 1c are formed with coarse pitches in the length direction, and the side edges are uneven with a relatively small sum of the notch areas, and the other side edges B and D of both crawlers 1a and 1b are soft and In order to increase the amount of penetration into the ground and improve the propulsion force, a notch 1c is formed so that the sum of the notch areas is larger than that of the one side edge A and C. It may also be configured to significantly improve the overall propulsion force while reducing the fall of lumps of mud toward the uncut land side.

In summary, the present invention provides the above-described crawler traveling device for a combine harvester with left and right crawlers 1a,
The side edge A on the side where the reaping pre-processing part 5 of 1b is deviated,
C is configured with the same specifications on the left and right sides on the uneven side edges or straight side edges in which notches 1c are formed at an appropriate pitch in the longitudinal direction of the crawler so that the sum of the notch areas is relatively small, and both crawlers 1a, The other side edges B and D of 1b are configured as uneven side edges of the same specifications on the left and right sides with notches 1c formed so that the sum of the notch areas is larger than that of the one side edge A and C. Features.

That is, in the basic cutting mode of the left and right crawlers 1a and 1b, side edges A and C located on the uncut land side are formed with relatively small irregularities or straight lines, and the other side edges B and D are formed with larger irregularities. By forming the shape on the side edges of the left and right crawlers 1a, it is possible to improve the turning performance toward the uncut land side while suppressing troubles caused by clods on the uncut land side as described above.
By forming the parts 1b to the same specifications, the straightness is improved, and since the same parts can be used on both the left and right sides, it is advantageous in terms of manufacturing.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the crawler traveling device for a combine harvester according to the present invention, and FIG. 1 is an overall side view of the combine, FIG. 2 is a schematic plan view of the combine, and FIGS. FIG. 6 is a schematic plan view showing a modified structure of the crawler traveling device. 1a, 1b... Crawler, 1c... Notch, 5
... Reaping pre-processing section, 11 ... Traveling machine body, A, B,
C, D... Crawler side edge.

Claims (1)

[Claim for Utility Model Registration] At the front of the traveling machine 11 equipped with the left and right crawlers 1a, 1b, a pre-reaping treatment section 5 having a width smaller than the overall width of the left and right crawlers 1a, 1b is offset to one side of the machine. In the crawler traveling device of a combine harvester connected together, the side edges A and C of the left and right crawlers 1a and 1b on the side where the reaping pre-processing section 5 is deviated,
Cutout 1c so that the sum of the notch areas is relatively small
The left and right side edges are formed with the same specifications on the uneven side edges or linear side edges formed at an appropriate pitch in the crawler length direction, and the other side edges B and D of both crawlers 1a and 1b are formed on the one side edge A. , C. A crawler traveling device for a combine harvester, characterized in that the left and right sides are configured with uneven side edges having the same specifications, with cutouts 1c formed so that the sum of the notch areas is larger than the sum of the notch areas. The uneven side edge of each crawler 1a, 1b on the deflection side of the reaping pre-treatment section 5 is formed by forming a relatively large notch 1c with a coarse pitch. Crawler traveling device. The uneven side edge of each crawler 1a, 1b on the deflection side of the reaping pre-treatment section 5 is formed by forming relatively small notches 1c with small pitches. Crawler traveling device.