Series-connection hydraulic support for tunnel floor dinting

Abstract

The invention discloses a series-connection hydraulic support for tunnel floor dinting, and relates to comprehensive mining, supporting and protecting equipment for coal mine, which is used for the supporting of a nose of a tunnel floor dinting transport plane, the maintenance of a top plate at a supporting position, and the adjustment of the operating attitude of the top plate. The series-connection hydraulic support comprises a supporting frame and an anchor frame connected in series to the bottom of the supporting frame through a push-pull jack, wherein the supporting frame is integrally connected with the nose of the transport plane through a pin shaft; the inclination angle of the transport plane can be well adapted by a rotatable top beam of the supporting frame; hydraulic pressure stand columns of the supporting frame can drive the top beam to rise and fall up and down, so that the change of a height difference between the transport plane and a tunnel bottom plate can be adapted; the supporting and the protecting of a working surface top plate at the nose can be well completed by the anchor frame; a raising mechanism and a bottom adjusting mechanism which are mounted on each of two sides of a stabilizing mechanism of the anchor frame, can adjust the operating attitude of the anchor frame and the operating attitude of the adjacent support, and can improve the equipment stability of the nose; the effect of the top supporting is improved by the rotatable top beam of the anchor frame; the supporting frame as the fulcrum of the anchor frame, and the anchor frame as the fulcrum of the supporting frame move forward, so that the difficult problem of moving the nose of a hang-in-air transport plane is solved settled.

Description

technical field [0001] The invention relates to a coal mine fully mechanized mining support equipment, in particular to a serial hydraulic support which can be adapted to bottom-lifting roadways. Background technique [0002] Underground stope support of coal mines is the focus of safe production in fully mechanized mining working faces. Underground geological conditions are complex and changeable. It is necessary to develop hydraulic supports with different characteristics to adapt to different coal mining conditions. When the coal seam is thin, the height of the roadway space is greater than the thickness of the coal seam, and the bottom of the roadway at the head of the working face is lifted, causing the floor of the roadway at the head of the working face to be lower than the floor of the working face, and there is a height difference between the floor of the roadway and the floor of the working face, especially in inclined coal seams , the height difference is larger, ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the difficulty in maintenance of the roof and the toppling and sliding of the support on the working face caused by the height difference between the floor of the roadway and the bottom plate of the working face caused by the lifting of the bottom of the roadway, the head of the conveyor is suspended in the air and the space behind it is too narrow to arrange normal supports, the present invention Provides a serial hydraulic support for bottoming tunnels. The front support frame of the serial hydraulic support provides reliable support for the suspended scraper conveyor nose, and the rear anchor frame can well support the nose The roof of the bottom roadway can be lifted, and the attitude of the anchor frame and the adjacent working face support can be adjusted through the lifting mechanism and the bottom adjustment mechanism on the support. The support frame and the anchor frame are mutually fulcrums and move forward with the advancement of the coal mining face. It also solves the problem of moving the suspended machine head

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