KR200417306Y1 - Rolling region blowout protected type Steel core of crawler - Google Patents

Abstract

The present invention relates to a Crawler that is used as a transportation means of an endless drive car for construction, civil engineering, agriculture, etc. More specifically, even if the compression load is concentrated on the rolling part during the driving of the Crawler, A stress preventing part is distributed evenly on both sides to prevent rupture and peeling of the rolling part and to significantly improve the quality and durability of the chromium. will be.

The present invention is made by devising a technique for evenly dispersing the stress caused by the compressive load on both sides by forming a stress dispersal recessed inwardly at the junction of both wing parts of the core and the guide protrusion.

Description

Rolling region blowout protected type Steel core of crawler}

Figure 1 is a plan view showing the ground plane side of the CRA applied to the present invention

2 is a perspective view of the core to which the present invention is applied

3 is a cross-sectional view taken along line A-A of FIG. 2 of the present invention.

Figure 4 is a longitudinal cross-sectional view of a claw cored with another embodiment of the present invention

5 is a longitudinal cross-sectional view of a claw embedded with a conventional core;

[Explanation of symbols on the main parts of the drawings]

1: crow 5: heart

5b: wing portion 7: rolling portion

10: stress distribution unit 20: bearing surface

The present invention relates to a Crawler that is used as a transportation means of an endless drive car for construction, civil engineering, agriculture, etc. More specifically, even if the compression load is concentrated on the rolling part during the driving of the Crawler, A stress preventing part is distributed evenly on both sides to prevent rupture and peeling of the rolling part and to significantly improve the quality and durability of the rolling part. will be.

In general, rubber claws are widely used due to the advantages of protecting the running road surface, not only very low noise, but also reducing the impact from the road surface while driving, and enabling work on soft ground such as wetlands.

Lug 2 which is grounded to the ground is formed on the outer surface of the rubber claw as shown in Figure 5, the inside can sufficiently withstand the load of the endless driving car and the running load of the engine as well as long-term use Steel cords (3), fabric canvas (4), etc. are embedded to maintain the stiffness and tensile strength not broken even in the Edo, and inside the steel cord (3) to maintain the shape of the claw and drive power of the engine Core (5) to serve to deliver the buried integrally.

Then, both ends in the longitudinal direction are integrally joined to form an endless phase, which is mounted on various endless driving vehicles, and then rotates by the driving force of the driving sprocket, thereby moving the endless driving vehicle.

Here, the roller 6 is mounted to the outside of the guide protrusion 5a formed in the core 5 to prevent the claw from being separated from the driving sprocket, the roller and the idler when the claw is driven.

However, in the conventional Crawler 1, the load and the traveling load of the infinitely driven vehicle are concentrated in the rolling part 7 of the Crawler 1 which is grounded with the roller 6 through the roller 6. As the rolling portion 7 is pushed outward by the concentrated load, the rolling portion 7 is separated from the wing portion 5b of the core 5, thereby causing a tear such as tearing or cracking of the rolling portion 7. ) Was causing the problem of peeling.

In particular, the stress generated by the compressive load concentrated on the rolling part 7 is not evenly distributed to both sides, and one direction is blocked by the guide protrusions 5a of the core 5 so as to be biased outward so that the rolling part ( The rupture of 7) was more and more weighted.

In addition, since the core is exposed to the outside due to the tearing and peeling of the rolling unit 7, severe noise is generated during driving, and stable driving performance cannot be guaranteed.

Moreover, the above-mentioned problems have emerged as a problem of lowering the overall quality of Craw as well as the durability of the product.

The present invention is intended to actively solve the problems that the rolling part rupture, peeling off due to the stress generated in the rolling part in one direction during the driving of the claw.

The present invention for achieving the intended purpose is to dissipate stress inwardly recessed in the joint portion of the wing portion and the guide projection of the core to prevent the rolling portion from rupturing or peeling despite the compressive load concentrated on the rolling portion of the claw This is achieved by forming a part to evenly distribute the stress caused by the compressive load to both sides.

The configuration of the preferred embodiment for effectively achieving the object of the present invention will be described.

1 to 3, the overall configuration of the present invention is formed sprocket grooves 1b at regular intervals in the center of the endless chromo body 1a made of a rubber material and the sprocket grooves A plurality of cores 5 are integrally embedded in the spaces between the ends 1b, and a steel cord 3 and a fabric canvas 4 are installed on the outside of the core 5 to maintain the tension. In la (1),

The core 5 basically achieves the purpose of maintaining the shape of the claw 1 and transmitting the driving force, in addition to the compression load of the infinitely driven vehicle to the rolling portion 7 which is grounded with the roller 6 during the claw driving process. Even though this is concentrated, the dominant feature of the present invention is that the stress due to the compressive load is evenly distributed to both sides, and thus the rolling unit 7 does not rupture or peel off.

Cores 5 of the present invention to the configuration for this purpose, as shown in Figs. 2 to 3, respectively, in contact with the rolling portions 7b and the guide projections 5a of the two sides in close contact with the rolling portion 7 The stress distribution portion 10 recessed inwardly is formed.

The stress distribution unit 10 is to prevent the deformation stress caused by the compressive load is blocked by the guide protrusion (5a) to be biased to the outside, by depressed to the inside of the rolling portion (7) rolling portion ( The stress generated in 7) is evenly distributed through the stress distribution unit 10 located inside as well as outside.

That is, the stress distribution unit 10 provides a space in which the stress generated in the rolling unit 7 may be dispersed inward without being biased outward.

Therefore, the stress due to the compressive load is uniformly dispersed without being biased in one direction, thereby preventing the rolling part 7 from being torn or cracked, thereby significantly improving the durability of the product.

Furthermore, the stress dispersing portion 10 is filled with rubber forming the chromobody body 1a, thereby expanding the adhesion area between the wing portion 5b and the chromabody body 1a of the core 5 to maintain a more solid binding force. It becomes possible.

On the other hand, Figure 4 relates to another embodiment of the core 5 of the present invention, in addition to preventing the tearing of the rolling portion 7 through the stress distribution unit 10 to the wing portion 5b of the core 5 The support surface 20 is formed to more effectively prevent the tearing of the rolling portion 7.

In this configuration, the blades 5b of the conventional core 5 are formed to be inclined as a whole, while the blades 5b connected to the stress dissipation 10 are horizontal to the roller 6 and the rolling part 7. Supporting surface 20 is formed.

Accordingly, the wing portion 5b supports the roller 6 more stably, and the rolling portion 7 is formed to have a uniform thickness, thereby more effectively preventing the tearing and peeling of the rolling portion 7. .

As a result, the present invention can achieve the desired purpose by securing a space through the stress distribution unit 10 in which the strain stress concentrated and generated in the rolling part 7 can be evenly distributed to both sides.

According to the present invention, since the stress dispersion portion is formed in the junction of the wing and the guide protrusion of the core, even if the compression load is concentrated on the rolling portion of the claw, the stress due to the compression load can be dispersed through the stress dispersion portion without biasing in one direction. Will be.

Therefore, the deformation stress due to the compressive load is evenly distributed to both sides of the rolling part, and the bonding area between the wing and the chroma body of the core extends to prevent the rolling part from rupturing or peeling, thereby significantly improving the quality and durability of the product. To provide.

In addition, by effectively preventing the tearing and peeling phenomenon of the rolling portion is not exposed to the core to suppress the generation of noise during driving, providing excellent stability and runability.

Claims (2)

The stress dispersing portion 10 is formed to be recessed inwardly in contact with the wing portion 5b of the core 5 and the guide protrusion 5a of the core 5 in close contact with the rolling portion 7 of the claw 1. The rupture prevention core of the rolling part of the claw which I do. The method of claim 1, The blade portion 5b of the core 5 that extends from the stress distribution portion 10 is further formed with a roller 6 and a supporting surface 20 parallel to the rolling portion 7. Rupture-resistant core in the rolling part.

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