KR101627400B1 - Crawler belt guide unit track vehicle - Google Patents

Abstract

The present invention provides a crawler belt guiding device for a caterpillar vehicle capable of reducing frictional force with a link chain and preventing foreign matter from entering the crawler belt, thereby preventing the crawler belt from being peeled off the link chain from the idler.
To achieve this object, according to the present invention, there is provided an endless tracked vehicle having a guide plate for preventing detachment of a link chain in a lower frame, comprising: a guide plate detachably attached to a lower frame and having a roller hole drilled; And a roller holder for mounting the roller on the guide plate so as to reduce frictional force with the link chain.
The roller holder includes a roller portion protruding outwardly of the guide plate so as to enclose the inside of the guide plate so as to prevent foreign matter from entering the roller holder.
The guide plate is characterized in that a lining is provided on opposite sides and a lower end of the link chain so as to reduce abrasion due to friction.

Description

[0001] The present invention relates to a crawler belt guide unit for an endless track vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler belt guide device for an endless track vehicle, and more particularly, to a crawler belt guide device for an endless track vehicle for preventing a crawler belt from being peeled off from an idler.

Generally, caterpillar vehicles are used for agricultural, civil engineering, snowmobile, etc., because they have a large ground area and excellent friction force with the ground, so that they can run freely on roads and mud floors with high irregularities, and they are used in military tanks and armored vehicles .

The infinite track consists of an idler in the front and a sprocket wheel in the rear. When the crawler belt is wrapped integrally with the idler and the sprocket wheel, the crawler belt moves forward or backward through contact with the idler.

The crawler belt is constructed such that the link with the shoe plate constitutes the link chain by continuous pin joining. In the case of sudden change of direction during running, large foreign matter such as stones between the link chain and rollers, The link chain is released from the idler and is peeled off.

As a result, as shown in FIG. 1, a guide plate is installed on the lower frame so as to be in close contact with the link chain of the crawler belt. However, as time elapses, the contact surface wears off due to friction and clearance occurs between the link chain and the guide plate There is a problem that the link chain is detached again from the idler and the crawler belt is peeled off.

On the other hand, an apparatus for preventing separation of a track chain of an endless track type heavy vehicle equipment is disclosed in the Registration Utility Model Publication No. 0118311 (registered on Feb. 25, 1998).

In order to support the drive sprocket wheel and the idler so as to be rotatable and to support the track chain on both front sides of the lower side frame in such a manner that the lower side frames are opposed to each other, Wherein a guide piece whose both ends are bent outward is installed on both side portions of an idler exposed above the lower side frame, respectively, in an upper portion of the lower side frame, A protective steel plate whose front end is bent inward is coupled to the front side so as to cover both side portions of the idler exposed frontward of the lower side frame, wherein the protective steel plate is coupled to the lower side frame in a state where a plurality of fasteners are formed at predetermined intervals, On the upper surface of the protective steel sheet, A flange portion is formed and the same number of fastening holes as the protective steel plate is formed and the tip ends thereof are superimposed on the inwardly bent auxiliary steel plates so as to be aligned with the tip portions of the inwardly curved protective steel plates and are fastened to the fastening holes and fastening holes And is tightly coupled by a load.

However, the track chain detachment prevention device of the endless track type heavy equipment is difficult to install and disassemble as a heavy object, and it is difficult to remove foreign objects such as mud.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a crawler belt of a caterpillar vehicle capable of preventing a crawler belt from being peeled off by releasing a link chain from an idler by reducing frictional force with a link chain, Thereby providing a guide device.

In order to achieve the above object, according to the present invention, there is provided an endless tracked vehicle having a guide plate for preventing detachment of a link chain in a lower frame, wherein the fastening hole is perforated and detachably attached to the lower frame by fastening means, In order to prevent the detachment of the link chain from the idler, a part of the roller is protruded through the roller hole so as to prevent the link chain from being pushed outward, and protruded outside the guide plate A roller holder for holding the remaining roller parts inside and holding the rollers on the guide plate so that the front and rear surfaces of the rollers are inclined so as to prevent the rollers from being caught by the roots or the trees when the endless track vehicle is advanced or retracted, When the chain comes off the roller and contacts the guide plate, it reduces wear due to friction. And a lining formed on the inner surface of the guide plate facing the link chain.

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According to the present invention, there is an effect that the link chain is supported by the roller and is protected by the roller holder, thereby preventing the crawler belt from peeling off due to disengagement of the link chain.

In particular, since the guide plate can be prevented from being worn by the link chain by the roller, there is an effect that the guide plate can be used semi-permanently.

1 is a view showing a guide plate installation example of a conventional trackless track vehicle,
2 is a perspective view of a crawler belt guide device of an endless tracked vehicle according to an embodiment of the present invention,
Fig. 3 is a perspective view of the embodiment shown in Fig. 2,
4 is a front view of the embodiment shown in Fig.

Hereinafter, a preferred embodiment of a crawler belt guide device for an endless tracked vehicle according to an embodiment of the present invention will be described with reference to the accompanying drawings.

2 to 4, the crawler belt guide of an endless tracked vehicle according to an embodiment of the present invention is provided with a guide plate 20 for preventing the link chain 10 from being separated from the lower frame 1 The endless track vehicle is provided with a guide plate (20) detachably attached to the lower frame (1) and having a roller hole (21) formed therein and a roller chain (21) A roller holder 40 for mounting the roller 30 on the guide plate 20 is provided so as to reduce the frictional force with the roller 10.

In the above technical arrangement, the crawler belt 2 constitutes the link chain 10 by the continuous pin connection of the link on which the shoe plate 2a is mounted.

The guide plate 20 is provided with a fastening hole 22 on the upper side and is detachably attached to the lower frame 1 of the caterpillar by a fastener such as a bolt.

The guide plate 20 is formed with a roller hole 21 so that the roller 30 can be partially protruded toward the link chain 10 side.

The roller 30 is partly protruded from the guide plate 20 so as to prevent the guide plate 20 from abutting against the link chain 10 to be abraded and is fixed to the guide plate 20 by the roller holder 40 .

Further, the roller 30 is subjected to a surface treatment according to the side surface shape of the link chain 10 so as to widen the ground contact area with the link chain 10.

The roller holder 40 is protruded rearward of the guide plate 20 so that the roller 30 is mounted such that the roller 30 partially protrudes forward through the roller hole 21.

The guide plate 20 is detachably attached to the lower frame 1 by fastening means and is provided with a roller 30 on the surface corresponding to the link chain 10 through the rollers 21, A portion is protruded.

Therefore, when the caterpillar 10 is suddenly changed in direction while the vehicle is running or when a large foreign object such as a stone is stuck between the link chain 10 and the lower roller or when the tension of the link chain 10 is insufficient, At this time, the link chain 10 is supported by the rollers 30 attached to the guide plate 20, so that the link chain 10 is disengaged from the idler and the crawler belt 2 is prevented from being peeled off .

Further, when the roller 30 is rotated while being in contact with the link chain 10, the frictional force can be reduced.

Next, the roller holder 40 encloses a portion of the roller 30 protruding outside the guide plate 20 so as to prevent foreign matter from entering the inside.

More specifically, the roller holder 40 has an upper plate and a lower plate protruding from the outside of the guide plate 20, and a roller 30 is mounted between the upper plate and the lower plate.

Further, the front and rear surfaces of the roller holder 40 are prevented from being caught on a stone or a tree root when the caterpillar vehicle is moved forward or backward, or between the crawler belt 2 and the crawler belt 2, So as to have a slope.

Next, the guide plate 20 is provided with a lining 50 on the opposite side and the lower end of the link chain 10 so as to reduce abrasion due to friction.

That is, when the caterpillar belt 2 travels on a road with severe unevenness, the crawler belt 2 is moved up and down so that the link chain 10 is separated from the roller 30 of the guide plate 20. In this case, It is possible to prevent the inner surface of the guide plate 20 from being worn by supporting the link chain 10 by the lining 50 protruding from the inner and lower ends of the guide plate 20. [

Here, the lining 50 is made of a material resistant to wear and is attached to the guide plate 20 by welding or the like.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And the like.

1: Lower frame
2: Crawler belt
2a: shoe plate
10: Link Chain
20: guide plate
21: Roller hole
30: Rollers
40: Roller holder
50: lining

Claims (3)

An endless track vehicle provided with a guide plate for preventing disengagement of a link chain from a lower frame,
A guide plate having a fastening hole drilled and detachably attached to the lower frame by a fastening hole and having a roller hole drilled therein,
The roller chain is prevented from being pushed outwardly by protruding a part of the roller through the roller hole so as to prevent the link chain from being separated from the idler and the remaining roller projected outside the guide plate A roller holder for housing the roller on the guide plate so that front and rear surfaces of the roller are inclined so as to prevent the roller from being caught by a stone or a tree root when the endless track vehicle is advanced or retracted,
And a lining protruding from an inner surface of the guide plate facing the link chain so as to reduce wear due to friction when the link chain is separated from the roller and contacted with the guide plate. Crawler belt guide device. delete delete

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