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Anchor rod and anchor cable protecting mechanism for roadway support hydraulic bracket

A technology for hydraulic support and roadway support, which is used in the direction of supporting the roof beam of the mine roof, mining equipment, earthwork drilling, etc., can solve the problems of anchor failure, anchor void failure, pallet failure, etc. , Improve the quality of support, the effect of convenient operation

Inactive Publication Date: 2018-12-28
ZHENGZHOU COAL MINING MACHINERY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing roadway support hydraulic support usually does not consider its adaptability to the original bolt and anchor cable support system of the roadway. When the anchor net is pressed, the local high stress causes the coal and rock in the contact area to break, leading to the failure of the supporting plate, bond failure and anchor void failure, etc., and then the anchor rod and anchor cable failure, anchorage failure and other problems

Method used

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  • Anchor rod and anchor cable protecting mechanism for roadway support hydraulic bracket

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Embodiment Construction

[0011] Such as figure 1 As shown, the anchor rod and anchor cable protection mechanism for roadway support hydraulic support according to the present invention includes a fixed beam 1 installed on the top beam of the hydraulic support. Usually, the lower surface of the fixed beam 1 is welded with a fixed pin 7. The top beam of the hydraulic support is provided with matching mounting holes, through which the fixed beam 1 and the hydraulic support can be connected conveniently and quickly. A sliding beam 3 driven by a hydraulic cylinder 2 is arranged above the fixed beam 1. Specifically, ear plates are welded on the upper surface of the fixed beam 1 and the lower surface of the sliding beam 3, and the piston rod of the hydraulic cylinder 2 passes through the pin shaft. It is hinged with the ear plate on the sliding beam 3, and the cylinder bottom of the hydraulic cylinder 2 is hinged with the ear plate on the fixed beam 1 through a pin; The above structure not only enables the ...

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Abstract

The invention discloses an anchor rod and anchor cable protecting mechanism for a roadway support hydraulic bracket. The anchor rod and anchor cable protecting mechanism comprises a fixing beam installed on a hydraulic bracket top beam. The fixing beam is provided with a sliding beam driven by a hydraulic cylinder, and the sliding beam is slidably connected with the fixing beam through a guide rail. The upper surface of the sliding beam is provided with at least two convex structures contacting with a roadway top plate. An avoidance groove matched with an anchor rod or an anchor cable is formed between the neighboring convex structures. The anchor rod and anchor cable protecting mechanism is simple in structure, convenient to operate, and capable of adequately preventing the top beam of the roadway support hydraulic bracket from directly contacting with the anchor rod or the anchor cable so as to generate a higher local stress, meeting a requirement of improving support quality, and meeting a demand of rapidly moving the bracket, and has very strong applicability.

Description

technical field [0001] The invention relates to the technical field of roadway support hydraulic supports, in particular to a bolt and cable protection mechanism for roadway support hydraulic supports. Background technique [0002] Fully mechanized coal mining and fully mechanized caving working face mining roadways are usually supported in advance by bolts, anchor cables and anchor nets, and the roof is comprehensively maintained by using the functions of bolt suspension, composite beams, wedging, and extrusion reinforcement. integrity. The use of the currently widely used roadway support hydraulic support not only improves the support quality, but also meets the needs of fast moving frames. However, the existing roadway support hydraulic support usually does not consider its adaptability to the original bolt and anchor cable support system of the roadway. When the anchor net is pressed, the local high stress causes the coal and rock in the contact area to be broken, lead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D17/02
Inventor 张定堂杨文明李鹏李帅郭怀亮刘长春赵琪边彦胜田可庆孙远方黄磊
Owner ZHENGZHOU COAL MINING MACHINERY GRP
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