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An all-round walking advanced hydraulic support

A hydraulic support and walking type technology, which is applied in the direction of mine roof support, earth square drilling, mining equipment, etc., can solve the problems of small displacement space, no direct lateral displacement, and difficult steering

Active Publication Date: 2018-09-21
TIANDI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are problems, the displacement space is small under the tight arrangement of advanced hydraulic supports, the self-moving walking part solution has no function of direct lateral displacement, and it is difficult to turn; the moving type needs loading and unloading process, and the operation is complicated

Method used

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Embodiment Construction

[0011] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] Such as figure 1 As shown in the figure, an all-round walking advanced hydraulic support is mainly used for the advanced support of the return air tunnel of the working face, including the hydraulic support top beam 1, column 2, stable support 3, base 4, lifting jack 5, fixed Frame 6, spiral drum 7, power unit 8. The spiral drum 7 is arranged on both sides of the base 4. When the advanced hydraulic support needs to move, the column 2 shrinks, the top beam 1 leaves the roadway roof, the lifting jack 5 moves, the fixed frame 6 rotates downward, and the spiral drum 7 touches the bottom plate.

[0013] The spiral drum 7 rotates synchronously clockwise under the action of the power unit 8, and the leading hydraulic support moves parallel to the left; the spiral drum 7 rotates counterclockwise under the action of the power unit 8, and the leading hydra...

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Abstract

Disclosed is a self-guide omnibearing traveling type forepoling hydraulic support. A spiral drum serves as a forepoling hydraulic support traveling portion. By controlling the rotation direction and the rotation speed of a screw pair, the forepoling hydraulic support can autonomously conduct the motions of advancing, retreating, rotation, lateral movement and the like and has an omnibearing traveling function, especially, lateral linear displacement realizes direct displacement of the forepoling support under the close arrangement condition, and traveling of the forepoling support is achieved. In particular use, the last forepoling support in a roadway is moved to the middle of the roadway laterally, then moved forwards to the front of all the forepoling supports, and moved to the side of the roadway laterally, thereby becoming the first forepoling support instead of the last forepoling support. As the last forepoling support is directly moved to the foremost position from the backmost position, a roadway roof is not supported repeatedly in the moving process, and the problem that at present, the roof is damaged due to repeated supporting of forepoling supports is solved.

Description

technical field [0001] The invention relates to an all-round walking type advance hydraulic support used for the advance support of roadways in coal mine working faces. Background technique [0002] The advanced hydraulic support is used for the advanced support of the roadway in the working face of the coal mine. At present, the advanced hydraulic support mainly adopts the moving jack to move. Its moving method is that the front and rear hydraulic supports serve as fulcrums for each other, and the movement is carried out by means of cyclically shrinking jacks and stretching jacks. Generally, the distance of each movement is about 600-800mm. The "Coal Mine Safety Regulations" stipulates that the length of the advance support of the working face roadway is not less than 20mm. Because the advance hydraulic support moves, it is necessary to repeatedly shrink the column to leave the roadway roof-the extension column contacts the roadway roof, and the advance hydraulic support m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/16E21D23/20
CPCE21D23/16E21D23/20
Inventor 徐亚军王国法张德生任怀伟程骏刘成峰文治国李丁一
Owner TIANDI SCI & TECH CO LTD
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