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Rock cracking drill bit and method for releasing rock stress

A rock and drill bit technology, applied in the field of drilling equipment, can solve the problems of high risk factor and cumbersome operation, and achieve the effects of strong reliability, enhanced service life and stable stability.

Active Publication Date: 2020-04-10
河北菲克森煤矿机械制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention proposes a rock cracking drill bit and a method for releasing rock stress, which solves the problems of cumbersome operation and high risk factor in the prior art

Method used

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  • Rock cracking drill bit and method for releasing rock stress
  • Rock cracking drill bit and method for releasing rock stress
  • Rock cracking drill bit and method for releasing rock stress

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Embodiment Construction

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] Such as Figure 1-Figure 5 As shown, a rock fracture drill bit, including

[0058] tube body 1,

[0059] The cutter body assembly 2 is slidably arranged in the tube body 1,

[0060] The knife outlet hole 3 is opened on the pipe body 1, and the knife body assembly 2 protrudes or enters from the knife outlet hole 3,

[0061] The speed regulating rod 4 is slidably arranged in the pipe body 1, and one end is used to contact the cutter body assembly 2,

[0062] The speed regul...

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Abstract

The invention belongs to the technical field of drilling equipment, and provides a rock cracking drill bit. The rock cracking drill bit comprises a pipe body, a cutter body assembly is slidably arranged in the pipe body, a cutter hole is formed in the pipe body, the cutter body assembly extends out or enters from the cutter hole, a speed regulating rod is slidably arranged in the pipe body, one end of the speed regulating rod is used for being in contact with the cutter body assembly, a speed regulating valve is arranged on one side, away from the cutter body assembly, of the speed regulatingrod, one end of a top head is slidably arranged in the pipe body, an oil cavity is formed between the speed regulating valve, the top head and the inner wall of the pipe body, and oil in the oil cavity extruded by the top head acts on the speed regulating rod after passing through the speed regulating valve. According to the rock cracking drill bit, the problems of tedious operation and high danger coefficient in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of drilling equipment, and relates to a rock fracturing drill bit and a method for releasing rock stress. Background technique [0002] In the process of exploring the coal mine, it is necessary to dig a tunnel to enter. After the tunnel is completed, there are still a lot of rocks above the tunnel. At this time, the rocks above have internal stress. If they are not released, there will be a danger of landslides. At present, most of the operation methods are to drill holes in the rock, and then place explosives in the holes to burst the rock to complete the stress release, but this method is cumbersome to operate, the layout is difficult, and there is danger. The industry has always hoped to design a simple and practical tool to achieve safe and efficient rock fracturing, but there has been no suitable equipment and methods. This technical problem seems to be basic in the field of coal mines, but no one has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/32E21B10/43E21B7/18E21B7/28
CPCE21B7/18E21B7/28E21B10/32E21B10/43
Inventor 张朋飞曹悦翟琨
Owner 河北菲克森煤矿机械制造有限公司
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