Novel diamond drill bit

Abstract

The invention discloses a novel diamond drill bit. The novel diamond drill bit comprises a rotary shaft and a drill bit connecting block, the top of the rotary shaft is fixedly connected with symmetrically distributed connecting rods, the tops of the connecting rods are fixedly connected with external connecting sleeves, the portions, corresponding to the position of the external connecting sleeves, of the bottom of the drill bit connecting block are fixedly connected with internal connecting sleeves, the outer surfaces of the internal connecting sleeves are mutually sleeved with the inner walls of the external connecting sleeves, and the tops of the inner walls of the internal connecting sleeves are fixedly connected with springs. By using a first positioning rod and a second positioningrod, a drill bit body can be fixed, after fixing is completed, and the situation that the drill bit body is bent due to high-strength drilling can be prevented; by arranging the springs, a certain buffering force can exist between the external connecting sleeves and the internal connecting sleeves, due to the buffering force, the situation that the drill bit body is damaged by hard and strong impact force can be prevented, and the novel diamond drill bit is good in drilling effect and low in damage rate.

Description

technical field [0001] The invention relates to the field of diamond technology, in particular to a novel diamond drill bit. Background technique [0002] The drill that makes the cutting edge is called a diamond drill. The drill bit is a one-piece drill bit. The whole drill bit has no moving parts and has a relatively simple structure. It has high strength, high wear resistance and impact resistance. It is one of the three new technologies of drilling in the world in the 1980s. Field use proves that when drilling in soft-medium hard formations, diamond bits have the advantages of fast speed, more footage, long life, stable work, fewer downhole accidents, and good wellbore quality. The diamond drill bit not only has a long service life, but also can be reused. The diamond drill bit returned to the factory for repair has the same effect as the factory diamond drill bit, which can save a lot of drilling costs. [0003] When the diamond drill bit is used, it is necessary to p...

AI Technical Summary

Problems solved by technology

[0003] When the diamond drill bit is used, it is necessary to perform high-strength drilling on the rock layer concrete, etc., and the high hardness rock layer and concrete may cause damage to the drill body fixed on the surface of the drill bit connecting block. Therefore, we propose a new type diamond bit

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