Segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and anchoring method thereof

A grouting bolt and anchoring technology, which is used in the installation of bolts, earthwork drilling, mining equipment, etc., achieves the effects of strong controllability, saving support costs, and improving segmented anchoring force.

Active Publication Date: 2016-01-20
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 in

Method used

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  • Segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and anchoring method thereof
  • Segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and anchoring method thereof
  • Segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and anchoring method thereof

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Example Embodiment

[0022] The present invention will be further described in detail below in conjunction with the drawings:

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

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Abstract

The invention provides a segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and an anchoring method thereof. According to the device, a grouting anchor rod, a first connecting piece, a cylinder, a second connecting piece and a resin anchor rod are sequentially connected into a rod body through threads; a piston and a piston rod are arranged in the cylinder and are fixedly connected; the end, connected with the second connecting piece, of the cylinder is provided with an annular groove, a plurality of supports are arranged at the end of the cylinder, one end of a movable connection rod is connected with the end of the piston rod, the other end of the movable connection rod penetrates through the annular groove of the cylinder and is hinged to a clamping wing, and the end of the clamping wing is hinged to the supports. According to the device and the method, resin cartridge anchoring and grouting anchoring are fully used, and the clamping wing is added and deeply embedded into the anchor hole wall, so that anchoring force is greatly enhanced. The device and method are suitable for unstable roadways with various mine soft rock crushing, can greatly improve anchoring capacity of a whole anchor rod, effectively improve self-stability of a roadway surrounding rock body, and have the advantages of being good in end anchoring effect, high in anchoring efficiency, convenient to install and the like.

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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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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