Bionic drill bit for mining

Abstract

The invention discloses a bionic drill bit for mining, which imitates a dung beetle surface structure, comprises a three-wing drill bit and is characterized in that more than one spherical crown body is arranged on the end face of the three-wing drill bit; more than one spherical crown groove is arranged on the periphery surface and the side face of the three-wing drill bit. Compared with the prior art, the bionic drill bit for mining has the visbreaking and resistance dimishing effects in the soft coal bed; the bionic drill bit not only can effectively reduce the drill bit wear, but also can easily quit when a drill hole collapses; the drill bit clamping phenomenon can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of mining, in particular to a mining bionic drill bit imitating the surface structure of dung beetles. Background technique [0002] Coal resources are the most important energy in our country. The safety and efficient production of coal mines have an important impact on ensuring the security of energy supply in our country and the development of our country's industry and economy. [0003] During the drilling process of the coal mine drill bit, the drill bit is mainly affected by the feed force and torque of the drill pipe to produce forward and circular motions, thereby being subjected to the static pressure, frictional resistance and impact force of the coal seam; the common three-wing drill is generally used in coal mine drilling in my country. The end face and the circumferential surface of the drill bit are smooth, which causes the drill bit to wear quickly and consume a lot of energy during the drillin...

AI Technical Summary

Problems solved by technology

[0003] During the drilling process of the coal mine drill bit, the drill bit is mainly affected by the feed force and torque of the drill pipe to produce forward and circular motions, thereby being subjected to the static pressure, frictional resistance and impact force of the coal seam; the common three-wing drill is generally used in coal mine drilling in my country. The end face and the circumferential surface of the drill bit are smooth, which causes the drill bit to wear quickly and consume a lot of energy during the drilling process, especially the problem that the drilling mechanism is difficult to withdraw when the soft coal ladle drill is stuck, which not only greatly reduces the production efficiency, but also Increased energy costs, more likely to cause gas explosions due to gas accumulation caused by excessive drilling time

[0004] However, a lot of research has been done by related enterprises, institutions and scientific research institutions at home and abroad, but it has not been well solved.

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