An anti-regression bolt for rock and soil layer in mining

An anti-backward, rock and soil layer technology, applied in mining equipment, bolt installation, earthwork drilling, etc., can solve the problems of easy loosening of the bolt head, falling back and falling of the bolt, and falling back out of the rock layer, so as to prevent the back of the bolt. shedding effect

Active Publication Date: 2022-05-24
阳泉市广凯机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a rock-soil anti-regression bolt for mining, one of the purposes of which is to have the anchor head and the rock layer firmly bonded together, so as to solve the problem that the anchor head is easy to loosen in the rock layer. Another purpose is to solve the problem that the entire anchor, including the cement bonding layer around the anchor, falls off together and falls back into the rock layer, so as to prevent the anchor from falling off through the hook tube and the hollow tip. retrograde effect

Method used

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  • An anti-regression bolt for rock and soil layer in mining
  • An anti-regression bolt for rock and soil layer in mining
  • An anti-regression bolt for rock and soil layer in mining

Examples

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Effect test

Embodiment 1

[0026] like Figure 1-Figure 6 As shown, the present invention provides a rock-soil layer anti-regression bolt for mining, comprising an anchor head 1, a rod body 2 and a bolt joint 3, the bottom of the anchor head 1 is movably connected with the top of the rod body 2, and the bottom of the rod body 2 is connected to the The top of the anchor joint 3 is threaded, the anchor head 1 includes a front drill bit 11 and a connection head 12, the bottom of the front drill bit 11 is fixedly connected with the top of the connection head 12, the front drill bit 11 includes a drill shell 111 and a cover plate 112, and the connection head 12 It includes a drill plate 121 , a hollow pipe 122 , a push block 123 , a hose 124 and a rotating gear 125 .

[0027] In this embodiment, a hollow anchor head 1 is used, and the anchor head 1 is divided into a front drill bit 11 and a connecting head 12, so that when the anchor rod is drilled into the rock and soil layer, it is convenient to inject cem...

Embodiment 2

[0031] like Figure 3-4 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: the bottom of the rotating gear 125 is fixedly connected to the top of the hose 124, the right end of the hose 124 is fixedly connected to the left side of the push block 123, and the soft The tube 124 includes a hose shell b1, a hollow tube b2 and a hollow tip b3, and the right side of the hose shell b1 is provided with a through hole, and the two ends of the inner wall of the hose shell b1 are provided with a card slot, and the inner wall of the card slot and the One end of the hollow tube b2 is clamped, and the outer wall of the hollow tube b2 is uniformly provided with several hollow pointed ends b3.

[0032] In this embodiment, the material of the hose 124 is a soft material, and the right side of the hose 124 is fixedly connected with a push block 123, wherein when cement is injected into the anchor rod, the cement is squeezed and pushed inside the hollow ...

Embodiment 3

[0034] like Figure 3-6 As shown, on the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: preferably, the cover plate 112 includes a rotating part d1 and a baffle plate d2, and slideways c6 are provided on both sides of the inner wall of the drill housing 111 , and both sides of the inner wall of the drill shell 111 are provided with arc-shaped grooves, and the arc-shaped grooves are located at the bottom of the slideway c6, the inner wall of the drill shell 111 is fixedly connected with a support spring c1, and the top of the support spring c1 is fixedly connected with a rotating ball c2, The bottom of the rotating ball c2 is rotatably connected with the inner wall of the drill housing 111, the top of the rotating ball c2 is fixedly connected with a compression spring c4, the inner wall of the slideway c6 is slidably connected with a hook tube c5, and the bottom of the hook tube c5 is fixedly connected with a pressure plate c3.

[003...

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Abstract

The invention discloses a rock-soil layer anti-regression bolt for mining, which relates to the technical field of mining engineering and includes an anchor head, a rod body and a bolt joint. The inner wall of the hollow tube is movably connected with rotating gears, the bottom of the rotating shaft is rotatably connected with the top of the arc tooth block, and the outer wall of the hollow tube is uniformly provided with several hollow pointed ends. The present invention uses a hollow tip and a hollow tube, wherein when cement is injected into the anchor rod, the push block squeezes the hose, and the hollow tube is ejected by the pressure of the cement on the push block, and the outer wall of the hollow tube is provided with a hollow tip. The tip is conical, and the hollow tip is inserted into the rock and soil layer. The cement will flow into the hollow tip along the hollow tube to better bond and fix the anchor rod and the rock and soil layer. When the cement flows into the inside of the front drill bit, it will be squeezed The pressure plate and the hook cover move up along the slideway to push out the drill shell, and the hook tube is barb-shaped to prevent the safety problems of the mining workers or the rock and soil collapse caused by the retreat of the bolt.

Description

technical field [0001] The invention relates to a bolt, which relates to the technical field of mining engineering, in particular to a rock-soil layer anti-regression bolt for mining. Background technique [0002] The bolt is the most basic part of roadway support in contemporary coal mines. It reinforces the surrounding rock of the roadway so that the surrounding rock can support itself. Anchor rods are not only used in mines, but also in engineering technology to carry out main body reinforcement for slopes, tunnels, and dam bodies. Anchor rods are rod system structures for rock and soil reinforcement. The tensile capacity of soil is far lower than the disadvantage of compressive capacity. On the surface, it restricts the separation of the rock and soil from the original body, and on the macroscopic view, it increases the cohesion of the rock and soil. There are following problems at prior art: [0003] 1. In the prior art, the bolts used in the mining process still hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/00E21D20/00E21D20/02
CPCE21D21/0026E21D21/008E21D20/003E21D20/028
Inventor 韩楠
Owner 阳泉市广凯机械制造有限公司
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