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A high air pressure drill bit

A drill bit and wind pressure technology, applied in drill bits, earth-moving drilling, drilling equipment, etc., can solve the problems of unstable rotational torque transmission, high stress wave loss, short life and other problems, achieve high torque transmission efficiency, amplify transmission of stress waves, etc. , the effect of long service life

Active Publication Date: 2019-04-12
长沙天和钻具机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The drill bit is composed of a drill body and alloy teeth. The drill bit transmits the shock wave from the impactor or the power head to the alloy teeth through the drill body. The alloy teeth then crush the rock for rock breaking. However, the existing drill bit Due to the unreasonable structure, the impact efficiency is low, and the length of the existing drill body is unreasonable, the ratio of the length of the crushing head, the length of the spline and the length of the stroke of the drill is unreasonable, so that the loss of the stress wave transmitted by the drill body is high, and the rotation torque is transmitted More unstable, low efficiency, short life

Method used

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  • A high air pressure drill bit

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing, the specific implementation manner of this patent is described in further detail.

[0012] Such as figure 1 As shown, a high air pressure drill bit, a drill body 1 and alloy teeth 2, the drill body 1 includes three parts: a crushing head 11, a spline 12 and a drill tail end 13, and the alloy teeth are arranged on the crushing head 11, the length of the crushing head 11 is L 1 , the length of the spline 12 is L 2 , the stroke length of the drill bit tail end 13 is L 3 , the length of the tail end of the drill bit is also called the stroke length of the drill bit, L 1 +L 2 +L 3 =230mm, the L 1 :L 2 :L 3 It is 1:1.7:1.

[0013] The diameter of the crushing head is D 1 , the diameter of the spline is D 2 , the diameter of the tail end of the drill bit is D 3 .

[0014] The length of the drill body 1 is L 1 +L 2 +L 3 =230mm is far less than the length of the existing drill body 299mm, and L 1 :L 2 :L 3 It is ...

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Abstract

The invention provides a high air pressure drill bit comprising a drill bit body and ally teeth. The drill bit body comprises a crushing head, a spline and a drill bit tail end. The alloy teeth are arranged on the crushing head with a length of L1. The length of the spline is L2. The length of the travel of the drill bit tail end is L3. The sum of L1, L2 and L3 is 230mm, L2 is greater than L1, and L2 is greater than L3. The loss of stress wave transmission of the drill bit body is reduced, so that the rotating torque transmission is more stable, the efficiency is higher and the service life is longer.

Description

technical field [0001] The invention relates to a high wind pressure drill bit. Background technique [0002] The drill bit is composed of a drill body and alloy teeth. The drill bit transmits the shock wave from the impactor or the power head to the alloy teeth through the drill body. The alloy teeth then crush the rock for rock breaking. However, the existing drill bit Due to the unreasonable structure, the impact efficiency is low, and the length of the existing drill body is unreasonable, the ratio of the length of the crushing head, the length of the spline and the length of the stroke of the drill is unreasonable, so that the loss of the stress wave transmitted by the drill body is high, and the rotation torque is transmitted More unstable, low efficiency and short life. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a high air pressure drill bit with reduced loss of stress wave tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/36
Inventor 王湘洲贺羽刘轲
Owner 长沙天和钻具机械有限公司
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