Multifunctional hydraulic support equipment

Abstract

The invention discloses multifunctional hydraulic support equipment used for a fully-mechanized top coal caving face underground coal mine. The equipment consists of two groups of hydraulic supports and a pushing jack, wherein the two groups of hydraulic supports are arranged forwards and backwards and are of same structures, and the pushing jack is connected with the two groups of hydraulic supports; each group of hydraulic supports comprises two bases, four vertical posts, two top beams and a link mechanism respectively hinged with the corresponding base and the top beam; each group of hydraulic supports further comprises an overturning and telescoping mechanism and a bottom beam adjusting and telescoping mechanism, wherein the overturning and telescoping mechanisms are arranged at one sides of the top beams and are used for adjusting the supporting distances of the top beams according to the width of the fully-mechanized top coal caving face, and the bottom beam adjusting and telescoping mechanisms are arranged at one sides of the bases and are used for adjusting the distances between the bases and other supports. The equipment provided by the invention is simple in structure and convenient to use, 'one support having three functions' can be realized, the research and development expenditure and research and development time can be saved, the production cost can be reduced, and the proper adjustment can be carried out according to the change of the distance between face supports or the width of a roadway, therefore the universal support on the face and the roadway can be realized.

Description

technical field [0001] The invention relates to the field of hydraulic supports for fully mechanized mining working faces in coal mines, in particular to the field of fully mechanized caving coal caving working faces which are suitable for steeply inclined fully mechanized mining caving faces or are impacted and deformed by mine pressure, and the parameters of roadways and working faces change irregularly. hydraulic support equipment. Background technique [0002] At present, in the prior art of hydraulic support at the end, when the working surface is intermittently pressed, the top drops or the coal wall is displaced, resulting in repeated good and bad changes, because the width of the support top beam is fixed, the support cannot be adjusted. Therefore, it often causes coal leakage from the empty roof, clamping and deformation of supports, difficulty in moving, and inability to adjust between supports, etc., which has a great impact on the safe and normal production of co...

AI Technical Summary

Problems solved by technology

[0002] At present, in the prior art of hydraulic support at the end, when the working surface is intermittently pressed, the top drops or the coal wall is displaced, resulting in repeated good and bad changes, because the width of the support top beam is fixed, the support cannot be adjusted. Therefore, it often causes coal leakage from the empty roof, clamping and deformation of supports, difficulty in moving, and inability to adjust between supports, etc., which has a great impact on the safe and normal production of coal mine working faces, resulting in reduced mechanization efficiency and excessive labor intensity of workers. , increased job risk factor, etc.

In addition, the existing terminal hydraulic support only has the characteristics of the terminal hydraulic support itself, and does not have the functions of the leading support hydraulic support and the end-tail hydraulic support, so it cannot play the role of "one support for multiple purposes".

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