JPS6236697Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a guide device for preventing crawlers from coming off in the running section of a mobile agricultural machine.

In other words, in the running section of a mobile agricultural machine in which a crawler guide for preventing the crawler from coming off is installed between both protrusions on the center side in the width direction on the inner circumferential surface of the crawler on the ground contact side where each roller comes into contact, ,
Because the crawler guide is long, it cannot be installed without lifting it with jacks to loosen the crawler.Also, since the mounting position of the rolling wheels differs depending on the model, the crawler guide for each model is different. The problem was that it had to be manufactured and could not be shared.

The present invention has been improved in view of this point, and provides a crawler guide that can be easily installed and set, can be made into a common part that can be applied to each model, and can be implemented suitably. .

Next, the embodiment shown in the drawings will be described.

Fig. 1 shows a side view of the running section of the combine harvester, in which a drive sprocket 4 and an idler wheel 5 are respectively mounted on the front and rear, and on the ground contact side between them, each roller 1 consisting of two bowl-shaped wheels 1a and 1b is mounted. are each mounted on a side track frame 3 via a support shaft 6, and drive a rubber crawler A having a lug 7 on the outer circumferential surface and both protrusions 2, 2 on the center side in the width direction of the inner circumferential surface. Sprocket 4 and idler wheel 5
The crawler A is hung so that both wheel bodies 1a and 1b of each roller 1 come into contact with the outer inner peripheral surfaces of both projections 2 and 2, and the structure is similar to the conventional structure.

B shows the entire crawler guide, in which a threaded rod 9 extending from the tip body 8 is screwed into a threaded portion 11 in the cylinder 10, and a lock nut 12 is screwed into the screw rod 9, so that the screw rod 9 extending from the tip body 8 is screwed into the cylinder body. The entire length up to 10 extends between both protrusions 2 and 2 on crawler A and is formed to serve as a crawler guide, but the threaded rod 9
The crawler guide B is installed and constructed so that the entire crawler guide B can be adjusted in expansion and contraction by screwing them together.

Further, a vertical mounting plate 1 is provided on the upper surface of the cylinder 10.
3 is integrally fixed, and one end of the bracket C is fixed to the side surface of the track frame 3, and the other end of the bracket C is extended to above the widthwise center of the crawler A, and the other end of the bracket C is fixed. The mounting plate 13 is fixedly installed via bolts and nuts 14.

Therefore, when installing the crawler guide B, the screw rod 9 can be screwed into the cylinder body 10 to shorten the overall length as shown in Fig. 2, and then it can be easily installed on the bracket C. Then, by rotating and extending the screw rod 9 with the tip body 8 and tightening the lock nut 12 when the desired total length is reached, the crawler guide B is extended to the desired length as shown in Fig. 4. Similarly, the length of the crawler guide B can be adjusted by expanding and contracting it.

Also, if the spacing between adjacent wheels 1 and 1 is different due to different models, the track hoop 3
The crawler guide B attached to the side can be adjusted to an appropriate length by expanding and contracting as described above.

In this way, the present invention improves the running of a mobile agricultural machine in which a crawler guide for preventing the crawler from coming off is installed between both protrusions on the center side in the width direction on the inner circumferential surface of the crawler on the ground contact side where each rolling wheel contacts. The crawler guide, which is attached to the track frame side that supports each wheel at the section through a bracket, is installed in a telescopically adjustable manner, so when installing the crawler guide, the overall length can be shortened, saving the time and effort required in the past. It can be installed easily and reliably without the need for a It has the advantage of being able to be carried out suitably.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of a running section of a combine harvester, FIG. 2 is a side sectional view of a portion thereof, and FIG. 3 is a vertical sectional view of a portion of FIG. 1. , FIG. 4 shows an explanatory diagram of the operation of FIG. 2. 1... Rolling wheel, A... Crawler, 2... Protrusion, B
... Crawler guide, 3 ... Track frame,
C...Bracket.

Claims (1)

[Scope of utility model registration request] In the running section of a mobile agricultural machine, each roller is installed with a crawler guide for preventing the crawler from coming off between both protrusions on the center side in the width direction on the inner circumferential surface of the crawler on the ground contact side where each roller comes into contact. A guide device for preventing a crawler from coming off, comprising a crawler guide which is attached to a supported truck frame via a bracket and is extendably and retractably adjustable.