Hydraulic bracket with interconnected top and bottom

A hydraulic support and interconnected technology, applied in the direction of mine roof support, mining equipment, earthwork drilling, etc., can solve the problems of hydraulic support sliding or falling, unsatisfactory effect, low efficiency and other problems, so as to avoid sliding or falling, The effect of simplifying the support structure and stress state, and low cost
CN101519973AInactive Publication Date: 2009-09-02张学进
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
张学进
Publication Date
2009-09-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a hydraulic bracket with interconnected top and bottom and fully mechanized face supported by a roof, comprising top beams, bases, a shield beam, a swing rod, a jack, a hydraulic prop, a top beam pushing device, a base connecting device and the like. The hydraulic bracket is characterized in that a plurality of hydraulic props are vertically or obliquely arranged between the top beam and the base; the upper end of the shield beam is articulated with the rear part of the top beam; the lower end of the shield beam is articulated with the rear part of the base through the swing rod; guide frames and following frames are intermittently arranged on the working face; adjacent bracket top beams are connected together by the top beam pushing device and the bases are connected by the base connecting device; the top beam jack is horizontally arranged between the adjacent bracket top beam pushing devices; and the base is provided with a base jack. When the frame is being moved, the guide frames at two sides of the following frames are moved forwards to the right place and support the roof, and then continue to move forwards. The bracket has the advantages of simple structure, light weight, convenient and force-saving installation and transportation, convenient and quick operation, good integration, stability and good directivity and wide applicable range, and can be moved with loads.
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Description

Technical field

[0001] The invention relates to a hydraulic support for supporting the roof of a fully mechanized mining working face in a coal mine. Background technique

[0002] At present, the hydraulic support used in fully mechanized coal mining face in my country can be divided into three types according to the characteristics of its interaction with the surrounding rock of the coal mining face: supporting type, shielding type, and supporting shielding type. The support type hydraulic support is composed of top beam, column, base, pushing device, etc.; the cover type and support cover type hydraulic support is composed of top beam, cover beam, column, base, pushing device and front and rear connecting rods. The base and the shield beam form a four-bar linkage device.

[0003] The upright column of the supporting bracket is arranged upright between the top beam and the base. It has a simple structure, high support efficiency, and strong roof cutting ability; It is sui...

Claims

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