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Composite slope guarding hydraulic support and use thereof

A technology of hydraulic support and support, applied in mine roof support, mining equipment, earthwork drilling and other directions, can solve the problems of low reliability, low efficiency, complex structure, etc., and achieve high reliability, convenient use and simple structure. Effect

Inactive Publication Date: 2011-06-29
CHINA COAL BEIJING COAL MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, hydraulic supports suitable for fully mechanized coal mining faces with large mining heights have complex structures, inconvenient use, low efficiency and low reliability, and cannot meet the needs of ultra-thick coal seam mining.

Method used

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  • Composite slope guarding hydraulic support and use thereof
  • Composite slope guarding hydraulic support and use thereof
  • Composite slope guarding hydraulic support and use thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] Composite side protection hydraulic support of the present invention, its preferred embodiment is as follows figure 1 As shown, the top beam 1 is included, and the front portion of the top beam is provided with a side protection mechanism and a telescopic beam 4 independent of each other.

[0016] Wherein, the telescopic beam 4 is slidably connected with the top beam 1, and a telescopic jack 3 is arranged between the telescopic beam 4 and the top beam 1, which is used to drive the telescopic beam 4 to expand and contract along the top beam 1, so as to realize the roof protection function of the telescopic beam 4.

[0017] The side protection mechanism is hinged with the front end of the top beam 1, and the side protection mechanism is provided with a side protection jack, which is used to drive the side protection mechanism to rotate, so as to realize the side protection function of the side protection mechanism.

[0018] The specific support organization can include fi...

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Abstract

The invention discloses a composite slope protecting hydraulic support and the application thereof. The support comprises a top beam, the front part of which is provided with a slope protecting mechanism and a telescopic beam which are mutually independent and are respectively controlled by respective jacks, wherein the slope protecting mechanism comprises three grades of slope protection which form a composite slope protecting mechanism. The front part of the top beam is provided with a slidable first slope protecting drag seat and a telescopic slope protecting jack thereof which work together with the first slope protecting jack to control the motion of the first slope protection. The support has in-time top protecting function and slope protecting function, simple structure, convenientuse, high efficiency and reliability, and is especially suitable for the exploitation of thick coal seam.

Description

technical field [0001] The invention relates to an underground support device for coal mines, in particular to a composite support hydraulic support and its application. Background technique [0002] In coal mining, for the full-height mining of thick coal seams at one time, coal wall slabs in fully mechanized mining faces with large mining heights are unavoidable. Therefore, there is a need for a hydraulic support for coal mines that can effectively support the roof and prevent coal wall spalling under the condition of large mining height. [0003] In the prior art, hydraulic supports suitable for fully mechanized coal mining faces with large mining heights have complex structures, inconvenient use, low efficiency, and low reliability, and cannot meet the needs of ultra-thick coal seam mining. Contents of the invention [0004] The object of the present invention is to provide a composite side protection hydraulic support with simple structure, convenient use, high effic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/04
Inventor 包冬生刘国柱张守祥王建陈宇钱建钢仲丛和
Owner CHINA COAL BEIJING COAL MINING MACHINERY
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