Bending-resistant diamond compact drill bit with concave-convex lip surface

Abstract

The invention relates to the technical field of diamond compact drill bits, and discloses a bending-resistant diamond compact drill bit with a concave-convex lip surface. A heat dissipation assembly sleeves the outer part of a drill rod, and a groove is formed in the lower surface of the drill rod; a threaded rod is arranged in a placing groove, and the bottom end of the threaded rod is fixedly connected with a bolt head; and a guide groove communicating with the groove is further formed in the drill rod, and a guide rod body is arranged in the guide groove. According to the bending-resistantdiamond compact drill bit, the heat dissipation efficiency of the drill rod can be improved through the heat dissipation assembly, so that heat dissipation of the drill rod can be completed in a shorttime; the periphery of the drill rod can be reinforced through the heat dissipation assembly, so that the overall strength of the drill rod is higher, and the probability of bending of the drill rodis reduced; and the bolt head and the threaded rod are rotated, at the moment, under the action of the guide rod body and the guide groove, the drill rod and a drilling seat can be driven to move oppositely or reversely, the use length of the diamond compact drill bit is easy to adjust, and the application range is widened.

Description

technical field [0001] The invention relates to the technical field of diamond composite drill bits, in particular to a bending-resistant diamond composite drill bit with a concave-convex lip surface. Background technique [0002] PDC drill bits are polycrystalline diamond compact drill bits. Traditional diamond drill bits usually have 3-8 blades. This structure of diamond drill bits has made contributions to oil exploration and exploration projects. PDC drill bits usually use tungsten carbide or steel bodies. As the matrix, diamond is used as raw material and binder is added and sintered at high temperature. [0003] However, during the use of the existing diamond compact drill bits, on the one hand, the drill pipe is difficult to complete heat dissipation in a relatively short period of time, and the heat dissipation efficiency is not high enough; Therefore, those skilled in the art provide an anti-bending diamond compact drill bit with a concave-convex lip surface to sol...

AI Technical Summary

Problems solved by technology

[0003] However, during the use of the existing diamond compact drill bit, on the one hand, it is difficult to complete the heat dissipation of the drill pipe in a relatively short period of time, and the heat dissipation efficiency is not high enough;

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