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A segmented anchoring grouting bolt device capable of automatic clamping and its anchoring method

A grouting bolt and anchoring technology, which is applied to the installation of bolts, earthwork drilling, mining equipment, etc., to achieve the effects of strong controllability, saving support costs, and improving segmental anchoring force

Active Publication Date: 2017-07-28
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems existing in the existing bolt payment, the present invention proposes a segmented anchoring grouting bolt device and its anchoring method that can be automatically clamped

Method used

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  • A segmented anchoring grouting bolt device capable of automatic clamping and its anchoring method
  • A segmented anchoring grouting bolt device capable of automatic clamping and its anchoring method
  • A segmented anchoring grouting bolt device capable of automatic clamping and its anchoring method

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0023] figure 1 It is a schematic diagram of the overall structure of the anchor device of the present invention, including a grouting plug 1, a nut 2, a tray 3, a grouting anchor 4, a first connecting piece 5, a cylinder body 6, an annular groove 7, a clamping wing 8, and a support 9 , The second connecting piece 10, the piston 11, the piston rod 12, the wire ring 13, the movable connecting rod 14, and the resin anchor rod 15. The first connector 5 is connected in the middle, the inner diameter is equal to the diameter of the grouting anchor 4, and the two ends are engraved with internal threads that are respectively connected with the grouting anchor 4 and the cylinder body 6, and the rotation direction of the internal threads is opposite; The middle part of the second connecting piece 10 is a solid body, and the two ends are engraved with internal threads to conne...

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Abstract

The invention provides a segmental anchoring grouting bolt device capable of automatic clamping and its anchoring method. The device uses a grouting bolt, a first connecting piece, a cylinder body, a second connecting piece, and a resin bolt A rod body is sequentially connected by threads, a piston and a piston rod are arranged in the cylinder body, the piston and the piston rod are fixedly connected, the cylinder body is cut with an annular groove at the end connected with the second connecting piece, and the end of the cylinder body is provided with a There are multiple supports, one end of the movable connecting rod is connected with the end of the piston rod, the other end passes through the annular groove of the cylinder body and is hinged on the clamping wing, and the terminal of the clamping wing is hinged on the support. The present invention makes full use of the anchoring of the resin drug roll and the grouting anchoring, and at the same time, the anchoring force can be greatly enhanced by adding clip wings that can be deeply embedded in the wall of the anchor hole. The present invention is applicable to unstable roadways with broken soft rocks in mines, can greatly improve the anchoring capacity of the overall bolt, effectively improve the self-stabilization ability of the surrounding rock mass of the roadway, and has the advantages of good end anchoring effect, high anchoring efficiency, and convenient installation. .

Description

technical field [0001] The invention relates to a bolt device for stabilizing surrounding rocks, in particular to a segmented anchoring grouting bolt device capable of automatic clamping and an anchoring method thereof. Background technique [0002] Bolt is a rod-shaped structure that is anchored between coal or rock masses and used to maintain the stability of the surrounding rock of the shaft. Bolt support is a form of active support, which makes the anchored rock mass produce a compressive stress zone and strengthens the rock formation. It plays the role of reinforcement, greatly enhances the strength of the surrounding rock, and improves the overall mechanical properties of the surrounding rock formation. Because the bolt has many advantages such as high bearing capacity, low cost, fast roadway formation, low labor intensity, and obvious improvement of the working environment and safe production, it has become a main support method for coal mine enterprise shaft roadway ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/00E21D20/02
Inventor 余伟健杜少华王卫军朱永建
Owner HUNAN UNIV OF SCI & TECH
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