JPH063746Y2 - Crawler traveling device for agricultural machinery - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides a plurality of guide wheels that come into contact with the inner surface of the grounding belt portion of the rubber crawler belt in parallel in the front-rear direction.
The present invention relates to an agricultural machine crawler traveling device in which an elastic body is attached to the outer peripheral portion of each of the guide wheels.

[Conventional technology]

In the above-described traveling device in the related art, the elastic bodies are all solid.

[Problems to be solved by the invention]

The above-mentioned conventional structure is designed to eliminate the metal impact between the cored bar embedded in the crawler belt and the metal rim of the grounding wheel, reduce noise and vibration, and enable high speed running. Since the elastic body of the ground contact wheel is solid, the cushioning property is insufficient and the ride comfort in the aircraft control section is not satisfactory, and there is room for improvement.

As a method for solving the above problem, it is conceivable to use air elasticity by making all the elastic bodies of the grounding wheels hollow, but such hollow elastic bodies, especially those at the front and rear ends, when turning the aircraft, Alternatively, there is a problem that it is easily deformed by a lateral thrust force on a ridge and the like and does not have sufficient durability, and the belt guiding performance is deteriorated.

An object of the present invention is to provide a crawler traveling device for agricultural machines, which has improved driving comfort and has excellent durability and turning performance.

[Means for solving problems]

A characteristic configuration of the present invention is that, in the crawler traveling device for agricultural machinery, the elastic bodies of the frontmost wheel body and the rearmost wheel body of each of the guide wheel bodies are formed to be solid.
The other elastic body of the remaining ring body is formed in a hollow shape, and its action and effect are as follows.

[Action]

Since the elastic bodies of the foremost and rearmost rolling wheels that receive the largest thrust force when the aircraft is turning or over ridges are formed in a solid shape having strength against thrust force, its durability and Since the turning body is not deteriorated in turning performance and the elastic bodies of the other wheels are formed in a hollow shape having excellent cushioning performance, the aeroelasticity makes the riding comfort in the driving control section much better.

[Effect of device]

Therefore, the agricultural machine crawler traveling device according to the present invention was able to improve the driving comfort in the driving control section of the machine without deteriorating its turning performance and durability.

〔Example〕

Fig. 1 shows the crawler traveling device attached to the combine (1)
Is shown. This crawler traveling device (1) comprises a drive sprocket (2) at the front end, a tension wheel (4e) at the rear end, and four ground wheels (4a), (4) arranged side by side between them. 4b), (4
c) and (4d), the crawler belt (5) is wound around the crawler belt (5), and the driving teeth of the sprocket (2) are inserted into the engagement holes (6) formed in the crawler belt (5) at a predetermined pitch. Are occluded, and are driven to rotate by being guided by the respective wheels (4a), (4b), (4c), (4d), (4e).

Further, in the crawler belt (5), a core metal (7) is embedded between the engaging holes (6), and the inner peripheral surface of the belt (5) is
A pair of left and right core metal projections (8), (8) are provided so as to project from the core metal (7). The grounding wheel bodies (4a), (4b), (4c), (4d) and the tension wheel body (4e) are engaged with the inner surfaces of the core metal projections (8), (8), and the crawler belt ( 5) It is an inner wheel type that guides, and an elastic body made of rubber material on the outer periphery of its rim (9).
(E) is attached. Also, the ground wheel (4a), (4b), (4c),
Each of (4d) is rotatably supported by a support shaft (11) that is projectingly fixed from the track frame (10), and a tension wheel (4e).
Is freely supported by a movable frame (12) which is slidable back and forth with respect to the track frame (10).

And, among the respective wheels (4a), (4b), (4c), (4d), (4e),
The elastic bodies (E) of the wheel body (4a) located on the forefront side and the wheel body (4e) located on the rearmost side are formed in a solid shape as shown in FIG. The respective elastic bodies (E) of the individual ring bodies (4b), (4c), (4d) are formed in a hollow shape as shown in FIG.

Three ring bodies (4b), (4c), (4 having the hollow elastic body (E)
The positions of the support shafts (11) in (d) are set slightly downward from the position of the support shaft (11) of the foremost side wheel body (4a) having the solid elastic body (E). The hollow elastic body (E) is distorted by the weight of the airframe (not shown) and the rear side of the airframe is sunk, so that the horizontal state of the airframe can be maintained.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a crawler traveling device for agricultural machinery according to the present invention. Fig. 1 is a side view, Fig. 2 is a cross-sectional view of a foremost wheel, and Fig. 3 is a cross-section of an intermediate wheel. It is a figure. (4a), (4b), (4c), (4d), (4e) …… Wheel, (5) …… Rubber crawler belt, (E) …… Elastic body.

Claims (1)

[Scope of utility model registration request] 1. A plurality of guide wheels (4a), (4b), (4c), (4d), which abut on the inner surface of the grounding belt portion of the rubber crawler belt (5).
(4e) are arranged side by side in front and back, and each of the guide wheels (4a),
(4b), (4c), (4d), (4e) is an agricultural machine crawler traveling device having an elastic body (E) attached to the outer peripheral portion thereof, each of the guide wheels (4
Among a), (4b), (4c), (4d), and (4e), the elastic body (E) of the frontmost wheel body (4a) and the rearmost wheel body (4e) is solid. And the remaining elastic bodies (E) of the other ring bodies (4b), (4c) and (4d) are formed in a hollow shape.