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A rock-fracturing drill bit and method for releasing rock stress

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

Active Publication Date: 2021-07-13
河北菲克森煤矿机械制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A rock-fracturing drill bit and method for releasing rock stress
  • A rock-fracturing drill bit and method for releasing rock stress
  • A rock-fracturing 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 proposes a rock fracturing drill bit, which includes a pipe body, a cutter body assembly is slidably arranged in the pipe body, a knife outlet hole is opened on the pipe body, and the cutter body assembly protrudes from the knife outlet hole Or enter, the speed regulating rod is slidably arranged in the pipe body, and one end is used to contact the cutter body assembly, the speed regulating valve is arranged on the side of the speed regulating rod away from the cutter body assembly, and one end of the plug is slidably arranged in the pipe body, the speed regulating valve, An oil chamber is arranged between the plug and the inner wall of the pipe, and the oil in the oil chamber squeezed by the plug acts on the speed regulating rod after passing through the speed regulating valve. Through the above technical solution, the problems of cumbersome operation and high risk factor 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 Patents(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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