Under-pressure support movement assisting device which can cyclically roll and be used and method

Abstract

The invention discloses an under-pressure support movement assisting device which can cyclically roll and be used and a method. The assisting device comprises a front top beam protecting plate of a top beam of a forepoling hydraulic support (1) and a rear top beam protecting plate at rear end. The front top beam protecting plate comprises a plate-type pressure-bearing baffle (4) and a strip-type containing funnel (5) and further comprises a lubricating brush (8), wherein the lubricating brush (8) consists of a fixed rod (801), a supporting rod (802), an oil tank (803) and a cylindrical brush (804). The under-pressure support movement assisting device is simple in structure, low in cost, simple and convenient to operate, reliable and practical.

Description

technical field [0001] The invention relates to the field of advanced support for coal mine roadways, in particular to an auxiliary device and method for moving a frame under pressure which can be cyclically rolled and used. Background technique [0002] my country's "Coal Mine Safety Regulations" clearly stipulates that the range of advance support along the trench in the coal mining face should not be less than 20m. In traditional mining areas, single hydraulic props are generally used for advance support along the trough of fully mechanized mining face. The pattern matches, and this support method has disadvantages such as low support strength, high labor intensity for workers, and slow support speed. In order to solve these problems, the Taiyuan Branch of the General Institute of Coal Science and Technology, Zhengzhou Coal Mining Machinery Group Co., Ltd. and other equipment manufacturers have developed different types of advanced support hydraulic supports. These adva...

AI Technical Summary

Problems solved by technology

This connection makes the speed of the upper track and the lower track consistent, reducing the friction between the upper track and the roof, but there are problems with the track design; the upper track and the roof have rolling friction, but the track and the top beam of the bracket have sliding friction. It will seriously affect the service life of the bracket, and it will bring defects such as large track rotation resistance and extremely unstable rotation. If the front and rear drive wheels are large enough, the track will not touch the top beam of the bracket, so there will be no sliding friction. Under pressure, the pressure on the two driving wheel bearings will be the force of the entire top plate on the bracket, which is unbearable

At the same time, the industrial application feasibility of this stent needs to be investigated, at least so far, its industrial promotion has not been seen, so it does not belong to the discussion category of the present invention on the improvement of traditional advanced stents

[0005] CN201310413286 A self-moving advanced support bracket with a crawler top beam, the situation is similar to the above, the crawler belt and the bracket top beam are sliding friction, which will seriously affect the service life of the bracket, and will cause large crawler rotation resistance, rotation Extremely unstable and other defects

At the same time, the feasibility of the industrial application of this kind of stent needs to be studied, at least so far, its industrial promotion has not been seen, so it does not belong to the discussion of the improvement of traditional advanced stents

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