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Tunnel ahead support stent

A technology of advanced support and roadway, which is applied to mine roof supports, mining equipment, earthwork drilling, etc., can solve problems such as poor adaptability, and achieve the effect of strong adaptability and improved support conditions.

Active Publication Date: 2009-08-19
SHANDONG TIANSHENG COAL MINE EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The task of the present invention is to solve the technical problem of poor adaptability to the unevenness of the roadway roof and floor in the prior art roadway advance support bracket, and provide a roadway advance support bracket

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] combine figure 1 , figure 2 and image 3 , a roadway advance support bracket, including a main frame body a and a sub-frame body b, the main frame body and the sub-frame body a, b each include a top beam 1 and a base 2, and a telescopic support is provided between the top beam 1 and the base 2 Column 3 and supporting four-bar linkage mechanism 4, the rear end of base 2 is provided with moving jack 5, and the moving jack 5 is connected with moving seat 15 by crosshead 16. The main and sub-frames a and b are side by side to form a group, and the main and sub-frames a and b are connected by the anti-fall jacks 6 and 7 through the connector 8, that is, between the bases of the above-mentioned main frame and the sub-frame Bottom anti-fall jacks 6 are provided, and top anti-fall jacks 7 are arranged between the top beams. Taking the main frame body a as an example, its top beam 1 is composed of front, middle and rear beams, that is, the front beam 101, the middle beam 102...

Embodiment 2

[0024] Except that no inner guard plate (outer guard plate) is set on the top beam of the above-mentioned main frame body and sub-frame body, and the base of the main frame body and sub-frame body does not adopt fixed seat body and movable seat plate, and correspondingly adjust the jack, Other technical contents are the same as those of the corresponding part of Embodiment 1.

Embodiment 3

[0026] Except that the top beam and the base of the main (auxiliary) frame body are composed of two sections of hinged joints, other technical contents are the same as those in the corresponding parts of Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses an advance support bracket of a machine lane, comprising a main support body and a minor support body which are combined into a group side by side, the main support body and a minor support body are connected with each other by a connector of an anti-fall jack; the support bodies in the main support body and the minor support body comprise top beams and bases, retractable supporting columns and supporting four bar linkage mechanisms are arranged between the top beams and the bases, support-moving jacks are arranged at the rear ends of the bases; the advance support bracket of the invention is characterized in that the top beams are composed of at least two sections of beam bodies, the two sections of beam bodies are hinged with each other in sequence, the bases also comprise at least two base bodies, two sections of the base bodies are also hinged with each other in sequence; each base body faces squarely one section of beam bodies therein. The advance support bracket of the invention can effectively overcome the technical disadvantage in the prior art that the suitability thereof is very weak to unevenness of the machine lane top plate and base plate as the top beams and bases both adopt an integral type rigid structure and has strong suitability to unevenness of the top plate and base plate of the machine lane.

Description

technical field [0001] The invention relates to a roadway advance support bracket, which can meet the requirements of the advance support distance (20-30m), support strength and other support specifications (pedestrian road, cable road, etc.) of the coal mining face, and is easy to use , fast, conducive to rapid advancement of the working face, easy installation, maintenance and removal. The support can be used for self-moving walking support in various mine roadways to protect the safety of underground workers and equipment in the roadway, and belongs to the field of mining machinery manufacturing and application. Background technique [0002] In mines with modern comprehensive mechanized mining, especially in coal mining, as the coal mining face advances, the roadways at both ends of the working face will be damaged, causing the roadways behind the coal mining face to collapse, and the roadways near the working face will also collapse. However, the roadways at both ends o...

Claims

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Application Information

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IPC IPC(8): E21D23/04E21D23/03
Inventor 牛敬业岳永强刘鹏飞张连宝
Owner SHANDONG TIANSHENG COAL MINE EQUIP CO LTD
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