Circular self-movement type tunnel advance support hydraulic holder

Abstract

The invention discloses a circular self-movement type tunnel advance support hydraulic holder which comprises an auxiliary suspended holder, an end head hydraulic holder, supporting beam assemblies and a flexible transmission device, wherein the auxiliary suspended holder and the end head hydraulic holder are oppositely arranged, the supporting beam assembly is leveled with the auxiliary suspendedholder and the end head hydraulic holder, and the flexible transmission device is used for moving the supporting beam assemblies. The flexible transmission device comprises flexible elements, an initiative wheel and a passive wheel, wherein the initiative wheel and the passive wheel are used for driving the flexible elements. The supporting beam assemblies comprise bases, supporting beams for supporting a top plate and stand columns, wherein the stand columns are arranged on the bases and are used for lifting the supporting beams, and the stand columns are hinged with the supporting beams. Lifting lugs are arranged on the supporting beams and are matched with the flexible elements. Grooves matched with the lifting lugs for transferring the supporting beam assemblies are formed in the initiative wheel and the passive wheel. The circular self-movement type tunnel advance support hydraulic holder is fast in moving speed and convenient to operate, repeat supporting is not carried out on the top plate, practical using requirements of the tunnel can be adapted, and safe and efficient production of coal miningworking faces can be achieved.

Description

technical field [0001] The invention relates to comprehensive mechanized coal mining roadway support equipment in coal mines, in particular to a circulating self-moving roadway advance support hydraulic support. Background technique [0002] The support along the channel of the modern mechanized coal mining face is very important, which directly affects the coal mining operation, ventilation and safety of the working face. The geological conditions of the roadway are complex, and the horizontal stress and vertical stress distribution of the rock formation are different. The mining vibration of the working face of the tunnel roadway will increase the stress of the roadway, the roof will sink or fall off, and the two sides of the roadway will also shrink inward, which directly affects the coal mining operation. and personnel safety, especially about 20 meters in front of the fully mechanized mining face, affected by the stress concentration in front of the fully mechanized min...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide an advanced support hydraulic support capable of cyclic self-moving, which solves the problem of repeated support of the roadway support bracket to the roadway roof in the prior art, slow moving speed, complicated operation, etc. problem, specifically through the following technical solutions:

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