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A recoverable hydraulic anchor cable constant resistance device

A hydraulic and anchor cable technology, which is applied in the installation of anchor rods, mining equipment, earthwork drilling and mining, etc., can solve problems such as large deformation, and achieve the effects of ensuring the effect, low support cost, and convenient recycling

Inactive Publication Date: 2017-07-21
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a constant anchor cable resistance device that can realize constant anchor cable support force, reliable working state, and convenient recovery, so as to solve the support problem of roadways with large deformation and high risk of roof fall

Method used

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  • A recoverable hydraulic anchor cable constant resistance device
  • A recoverable hydraulic anchor cable constant resistance device
  • A recoverable hydraulic anchor cable constant resistance device

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, the retrievable hydraulic anchor cable constant resistance device is composed of a hydraulic constant resistance device 1, an anchor withdrawal sleeve 5 and a threaded claw 10. During installation, the hydraulic constant resistance device 1 is directly installed on the anchor cable lock 8 Between the tensioning machine and the pallet 7, the threaded claws 10 are embedded in the lock sleeve of the anchor cable lock 8 to realize the fastening of the anchor cable 4. When recovering, the anchor withdrawal sleeve 5 extends into the hydraulic constant resistance device 1 The interior is connected with the threaded claw 10, and the threaded claw 10 is driven to move by pulling the anchor sleeve 5 to realize the removal of the threaded claw 10, and then reali...

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Abstract

A retrievable hydraulic constant resistance device for anchor cables, which is composed of a hydraulic constant resistance device, an anchor withdrawal sleeve and a threaded claw, and adopts the principle of constant pressure relief of the hydraulic constant resistance device to realize the support force during the working process of the anchor cable Constant, the hydraulic constant resistance device is installed between the anchor cable lock and the pallet, and the threaded claw is embedded in the lock sleeve of the anchor cable lock to realize the anchor cable fastening. When recovering, the anchor retreat casing extends into the hydraulic constant resistance The inside of the device is connected with the threaded jaws, the bottom of the threaded jaws is external thread, the top of the anchor withdrawal sleeve is internal thread, and the bottom of the anchor withdrawal sleeve can be provided with a supporting structure, and the threaded jaw is driven by tensioning the anchor withdrawal sleeve Move to realize the removal of the threaded jaws, and then realize the recovery of the anchor cable constant resistance device, so as to reuse and reduce the support cost.

Description

technical field [0001] The invention belongs to the technical field of large deformation roadway (tunnel) support, and in particular relates to an anchor cable constant resistance device capable of realizing constant anchor cable support force, reliable working state and convenient recovery. Background technique [0002] The anchor cable has the characteristics of high bearing capacity, large anchoring depth, and convenient installation. With the increasing difficulty of roadway support, due to the mismatch between the violent deformation of the surrounding rock and the extension performance of the conventional anchor cable, and the effect of impact load, the anchor cable Cable breakage and anchorage failure occur from time to time, resulting in hidden dangers of roof fall in the roadway. In response to such problems, many new types of anchor cables have been developed, such as constant resistance anchor cables, seismic anchor cables, yield anchor cables, etc., and have achi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D20/00
Inventor 贾后省付孟雄乔安震罗亚飞李文彬
Owner HENAN POLYTECHNIC UNIV
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