Omnibearing traveling type forepoling hydraulic support

A technology of hydraulic support and advanced support, which is applied in the direction of mine roof support, earth square drilling, mining equipment, etc., can solve problems such as roof damage, and achieve the effect of solving damage

Active Publication Date: 2017-04-26
TIANDI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In specific use, the last leading support in the roadway moves laterally to the middle of the roadway, then moves forward to the front of all leading supports, and then moves laterally to the side of the roadway, changing from the original last leading support to the first An advanced support, because it moves directly from the rearmost position to the front, there is no repeated support for the roadway roof during the movement process, which solves the problem of damage to the roof caused by the repeated support of the current advanced support

Method used

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  • Omnibearing traveling type forepoling hydraulic support
  • Omnibearing traveling type forepoling hydraulic support

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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 advance hydraulic support is mainly used for the advance 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), screw drum (7), power unit (8) and other components. 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 roof of the roadway, the lifting jack (5) moves, and the fixing frame (6) Rotating downwards, the helical drum (7) touches the bottom plate.

[0013] A pair of right-handed helical rollers (7) rotate clockwise synchronously under the action of the power unit (8), and the leading bracket moves parallel to the left; the helical rollers (7) r...

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PUM

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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 autonomously guided omni-directional walking advance hydraulic support, which is 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 two hydraulic supports at the front and the rear serve as fulcrums for each other, and the movement is carried out by means of cyclically shrinking jacks and stretching jacks. Generally, the length 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 20m. Because the advance hydraulic support moves, it is necessary to repeatedly shrink the column to leave the roof of the roadway-the extension column contacts th...

Claims

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Application Information

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Patent Type & Authority Applications(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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