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A rear top beam multi-step filling hydraulic support

A technology of hydraulic supports and rear jacking beams, which is applied to mine roof supports, fillings, mining equipment, etc., can solve the problems of no filling closed space, low support stability, and inability to realize multi-step shifting, etc., to achieve Guaranteed setting time effect

Active Publication Date: 2016-03-23
CATERPILLAR ZHENGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the four-column paste-filled hydraulic support used for goaf filling has the following disadvantages or deficiencies: 1) Since the support cannot be moved in multiple steps, the solidification time of the rear filling cannot be guaranteed; 2) The stability of the support is not stable High; 3) No filling confined space is formed

Method used

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  • A rear top beam multi-step filling hydraulic support
  • A rear top beam multi-step filling hydraulic support

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Embodiment Construction

[0013] In order to deeply understand the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] See attached figure 1 And attached figure 2 , the rear roof beam 1 rear end of the rear roof beam multi-step filling hydraulic support provided by the present invention has an open box body, the telescopic beam 2 is inserted into the open box body, and the rear base 3 is connected with telescopic parts (this embodiment Among them, as a specific implementation of the telescopic part, the telescopic part is the rear pull jack 4), when the coal mining part of the support moves forward, the free end of the telescopic beam 2 and the free end of the rear pull jack 4 are fixed , the telescopic distance of the telescopic beam 2 and the back-pull jack 4 can be adjusted.

[0015] Based on the aforementioned technical solutions, the multi-step hydraulic support for the rear top beam provided...

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Abstract

The invention discloses a rear top beam multi-step distance filling hydraulic support and belongs to the technical field of underground coal mine comprehensive mechanical coal face supporting equipment. An opening type box body is arranged at the rear end of the rear top beam of the support, a telescopic beam is inserted into the opening type box body, and a telescopic component is connected on the rear base seat. When the coal portion of the support moves forward and the free end of the telescopic beam and the free end of the telescopic component are fixed, the telescopic distance of the telescopic beam and the telescopic component can be adjusted, and therefore multi-step distance support movement is achieved, and coagulation time of filling of the rear portion is guaranteed.

Description

technical field [0001] The invention relates to the technical field of supporting equipment for comprehensive mechanized coal mining working faces in underground coal mines, in particular to a multi-step filling hydraulic support for back top beams used for goaf filling. Background technique [0002] In the prior art, the four-column paste-filled hydraulic support used for goaf filling has the following disadvantages or deficiencies: 1) Since the support cannot be moved in multiple steps, the solidification time of the rear filling cannot be guaranteed; 2) The stability of the support is not stable High; 3) No filling confined space is formed. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a multi-step filling hydraulic support for the rear top beam that can realize multi-step shifting and has high stability. [0004] The back end of the rear top beam multi-step filling hydraulic support provided by the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/04E21D23/03E21D23/16E21F15/00
Inventor 郭振宇崔永亮魏连河贾洪现梁勇张学东张冬梅邵天旗胡玉珊王颖吴震梁鹤邵俊营付超张海建师亚杰
Owner CATERPILLAR ZHENGZHOU