Rock cracking drill bit

Abstract

The invention discloses a rock cracking drill bit which comprises a drill bit body. A first columnar blade is arranged on one side of the drill bit body, and a first spiral blade is arranged on one side of the first columnar blade; a first rhombic blade is arranged on one side of the first spiral blade, and a second columnar blade is arranged on one side of the first rhombic blade; a first check block is arranged on one side of the second columnar blade, a stock outlet is formed in one side of the first check block, and the other side of the stock outlet is provided with a second check block; a second rhombic blade is arranged on one side of the discharging opening, and a second spiral blade is arranged on one side of the second rhombic blade; and an installation hole is formed in one end of the drill bit body, and a drill tip blade is arranged at the other end of the drill bit body. The rock cracking drill bit is mainly used for smashing rocks, the first columnar blade is arranged on one side of the drill bit body and can select to be additionally provided or not provided with an alloy head according to the need, and operation is pretty flexible and convenient; and the first spiral blade is arranged on one side of the first columnar blade, and therefore the stirring effect can be improved.

Description

technical field [0001] The invention relates to a drill bit, in particular to a rock drill bit. Background technique [0002] The drill bit of the drilling rig is mainly composed of the working part and the shank. There are two helical grooves in the working part. In order to reduce the friction between the guide part and the hole wall during drilling, the rock drill gradually decreases in diameter from the drill tip to the shank and is in the shape of an inverted cone. The spiral groove can be processed by milling, grinding, hot rolling or hot extrusion, and the front end of the drill bit is sharpened to form a cutting part. In order to improve the cutting performance of the rock drill, the cutting part can be ground into various shapes according to the nature of the processed material. Nowadays, in the process of using drilling rigs for trenchless construction, more and more rock geology situations are encountered. In order to overcome this special geology, especially fo...

AI Technical Summary

Problems solved by technology

[0003] There are still some deficiencies in the current open rock drill bit. The structure of the general open rock drill bit is fixed, but the performance of the rock in different construction sites is quite different. Sometimes the rock is very hard and will damage the drill bit. It is necessary to choose rock drill bits with or without alloy heads. The operation is very flexible and convenient. It not only has a long service life, but also improves the working efficiency.

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