Forepoling with large inclination working surface and four transverse connecting rods

Abstract

The invention discloses a forepoling with a large inclination working surface and four transverse connecting rods, comprising a top beam and a base, wherein four upright columns are arranged between the top beam and the base, the support height of two upright columns at the left side of the top beam is bigger than that of the other two upright columns at the right side, and a transverse four-connecting rod mechanism is arranged between the underside of the top beam and the base; the transverse four-connecting rod mechanism comprises an oblique beam, the upper end of the oblique beam is articulated to the top beam, and the lower end is connected with the base through four connecting rods; the upper end of each connecting rod is articulated to the oblique beam, and the lower end is articulated to the base; a reversedloader is arranged on the base below the transverse four-connecting rod mechanism; a protective wall is articulated to the right side of the top beam, and a man passing space is formed below the protective wall. The transverse four-connecting rod mechanism can overcome the lateral pressure from a top plate and ensure a larger operation space below the bracket, and can be used for the large inclination working surface of an inclined top plate overheading.

Description

technical field [0001] The invention relates to a hydraulic support for supporting a special-shaped roadway in a large-inclination working face of a coal mine, in particular to a transverse four-link leading support for a large-inclining working face. Background technique [0002] In the underground coal mining face in the prior art, the underground support for the trough mainly adopts the form of artificial single pillars. As the coal mining face advances, the underground workers continue to withdraw and support the single pillars, so reciprocating, the efficiency Low, poor security. [0003] For the parallel groove of the horizontal roof, there are also advanced brackets for support, but for the parallel groove of the inclined roof, it is difficult to use the advanced bracket for support because the advanced bracket is difficult to bear the lateral pressure of the roof. Contents of the invention [0004] The purpose of the present invention is to provide a transverse fo...

AI Technical Summary

Problems solved by technology

[0002] In the underground coal mining face in the prior art, the underground support for the trough mainly adopts the form of artificial single pillars. As the coal mining face advances, the underground workers continue to withdraw and support the single pillars, so reciprocating, the efficiency low, poor security

[0003] For the parallel groove of the horizontal roof, there are also advanced brackets for support, but for the parallel groove of the inclined roof, it is difficult to use the advanced bracket for support because the advanced bracket is difficult to withstand the side pressure of the roof

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