JPS5852867B2 - Crawler Sochi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crawler device equipped with a lug-equipped crawler body made of an elastic material.

In a crawler device having an elastic body structure, the crawler body is constructed as shown below, regardless of whether the rollers installed thereon are outer or inner wheels.

That is, on the ground surface side, propulsion ground lugs are provided at appropriate intervals in the direction of rotation of the crawler, and on the lug portions, core metal protrusions for preventing the rolling wheels from slipping sideways protrude toward the rolling wheels. A drive locking portion such as a protrusion or a through hole is provided.

In this configuration, when the lugs are in contact with the ground, a gap exists between the grounding lugs, and since the crawler main body portion in this gap is made of only an elastic body, there is no movement in this gap. When the wheels are in the active position, the crawler body portion bends.

(See Figure 4) When operating the aircraft under such conditions,
When the wheels roll on the lugs, shock vibrations are generated in the machine body, and this combined with the wheels falling into the gap causes the machine body to continuously vibrate greatly.

In particular, in a configuration in which all of the wheels roll on the lugs at the same time, there is a problem in that the vibrations occur at the same time and vibrate even more. Measures have been taken to position the front and rear wheels in the gap, but these do not significantly reduce shocks and vibrations.

In the present invention, in the crawler main body portion of the roller contact portion in the lug gap, a swelling portion sufficient to absorb the amount of deflection of the crawler main portion is bulged in advance toward the roller contact portion side. The present invention aims to provide a crawler device that can suppress machine body vibration with this configuration.

Next, embodiments of the present invention will be described in detail based on illustrative drawings. FIG. 1 shows a crawler traveling device 1, and a traveling frame 2.
The crawler body 6 made of an elastic body is wound endlessly around the front and rear driving wheels 3, driven wheels 4, and outer wheels 5 at the bottom of the frame, and is mainly used for mobile agricultural machinery such as combines. It is used.

The crawler main body 6 is provided with drive locking portions 7 extending through the thickness direction at an intermediate portion in the width direction and at appropriate intervals in the rotational direction of the crawler. A core bar 9 for protruding the core bar protrusions 8, 8 for preventing lateral slippage toward the side where the rolling wheels are present is buried at an appropriate pitch gap, and a grounding lug 10 is provided on the grounding side of the buried portion of the core bar 9.・・・
...is installed protrudingly.

In the crawler body 6 having this elastic body structure, in the present invention, at least the rolling wheel contact portion A of the crawler body 6 in the gap portion of the grounding lugs 10 .

A is a bulge toward the roller contact portion side, and the amount of bulge is the crawler body portion when the machine body distributed load from each roller 5 acts on the crawler body portion in the gap portion. The amount is set to be sufficient to absorb the amount of deflection.

According to this configuration, while the propulsion function is provided by the lugs 10, the impact caused by rolling on the lugs and the vibration caused by the falling of the wheel, which occur due to the existence of the gap, are extremely small. The bulging portions at the wheel contact portions are sequentially bent, so that the rolling wheels 5 substantially run on the same plane, in other words, each of the rolling wheels 5 when viewed from the side.
As a result, the lowest point of ... moves on the same line, and as a result, the occurrence of shock and vibration becomes extremely small.

By configuring as described above, not only can the occurrence of shock and vibration be extremely reduced, but also the arrangement of the rolling wheels 5 can be arbitrarily determined, and the core metal 9 can be placed in the lug portion. The result is that the strength of the crawler main body portion in the gap between the lugs, which is the joint portion of the core metals 9, 9, is increased.

In addition, although the outer ring structure is shown in the embodiment, it can be implemented in the same way even if it is an inner ring structure.

In summary, in the crawler device according to the present invention, at least the rolling wheel contacting portion of the crawler main body in the gap between the grounding lugs of the lug-equipped crawler main body made of an elastic body bulges toward the rolling wheel contacting portion side. It is characterized by

In other words, the deflection of the crawler main body in the lug gap caused by the gap between the grounding lugs can be absorbed by an extremely simple means of attaching a bulge to the crawler main body, so that the impact and vibration received by the aircraft can be absorbed in a practical manner. It was possible to minimize the size easily.

As a result, the arrangement of the wheels can be arbitrarily set, which is advantageous in terms of design, and the crawler main body portion between the lugs can be reinforced to a considerable extent.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the crawler device according to the present invention, and FIG. 1 is an overall side view, FIG. 2 is a longitudinal cross-sectional plan view of the beam Q-ra main body, and FIG. 3 is an explanatory diagram of a partially broken state of operation. , FIG. 4 is an explanatory diagram of a conventional structure corresponding to FIG. 3. 6... Crawler body with lug, 10...
Grounding lug, A...Rolling wheel contact part.

Claims (1)

[Claims] 1. At least the rolling wheel contact portions A, A of the crawler body 6 in the gap portion of the lug-equipped crawler main body 6 made of an elastic body are placed on the rolling wheel contact portion side. A crawler device characterized by a bulge.