Wear-resisting plate and guide sliding shoe for coal mining machine

Abstract

The invention provides a wear-resisting plate and a guide sliding shoe for a coal mining machine. The wear-resisting plate comprises a wear-resisting plate body and a rolling body, wherein the rollingbody is arranged on the wear-resisting plate body, and the rolling body can roll on the wear-resisting plate body. According to the wear-resisting plate of the technical scheme, the rolling body canroll on the wear-resisting plate body, so that when a pin row of the coal mining machine moves on the wear-resisting plate, the friction form between the pin row and the wear-resisting plate is changed into a rolling friction form from a sliding friction form in the prior art; the rolling body is additionally arranged on the wear-resisting plate in the prior art, and the rolling body makes rollingcontact with the pin row, so that the problem that the wear-resisting plate and the guide sliding shoe are worn in the prior art because the force of friction between the wear-resisting plate and thepin row is large due to sliding friction between the wear-resisting plate and the pin row is solved; and therefore, the service life of the wear-resisting plate is prolonged, additionally, the guidesliding shoe can be stably and reliably operated, and the pin row of the coal mining machine can be normally engaged with a walking wheel.

Description

technical field [0001] The invention relates to the technical field of design of a guide shoe, in particular to a wear-resistant plate and a guide shoe for a coal mining machine. Background technique [0002] At present, the guide shoe is one of the important parts of the shearer. Its main function is to ensure the normal meshing of the road wheels and the pin row and to guide the pin row. When the shearer is working, it bears part of the shearer's own weight and coal load. In the related art, there is sliding friction between the guide shoe and the pin row. In order to ensure the correct meshing relationship between the road wheel and the pin row, the wear resistance of the guide shoe has extremely high requirements. The guide shoe usually increases the wear resistance of the guide shoe by overlaying a wear-resistant layer or welding a wear-resistant plate on the wall of the guide cavity. However, when the shearer is working, there is always sliding friction between the g...

AI Technical Summary

Problems solved by technology

However, when the shearer is working, there is always sliding friction between the guide shoe and the pin row, resulting in a large sliding friction force. Even if wear-resistant materials are used on the friction surface, the friction surface will gradually wear out as the frequency of use increases. Damage, affecting the stability and reliability of the guide shoe, and then affecting the normal engagement of the road wheel and the pin row

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