Diamond impregnated wire line coring geological bit and manufacturing method thereof

Abstract

The invention discloses a crown and a steel junction surface of a hierarchical internal cone shaped vortex-type centering pilot diamond impregnated wire line coring geological bit with symmetrical pigeon-toed toes in and a manufacturing method of the bit. The bit comprises a working layer of the diamond bits, a bit steel body, middle isolation scraps and connecting layer materials. The bit has the following beneficial effects: assembly and configuration of the whole set of bit tools of the bit designed in the invention take pairing of each pair of bit tools as the pigeon-toe forming mode; thepairing formula of the bit tools is characterized by female/male layering, symmetry and balance; the bit tools are positioned, arranged and seated to form the internal cone shape; the situation of layered distribution and preset synchronous diminishing of the bit tools forms the preset function of using gentle methods and force; the crown is shaped like vortex-type cone-preserving pigeon-toe (thepreset pigeon-toe is transient equilibrium buffer and synchronous compensation in place of dynamic landing of the bit); the vortex-type pilot centering force is continuously obtained and the continuous vortex-type pilot centering force is the concept of the pigeon-toed toes in; the toes in are effective restraints for controlling advance; the toes in need to control the vertical effective latitude of the bore diameter when being applied in the drilling bit; and the mode of cushioning the toes in with pigeon-toes to control centering pilot is taken as the first key point.

Description

[0001] technical field [0002] The invention relates to the technical field of geological exploration, in particular to a "layered and graded inner cone type, symmetrical inner splayed toe-in, and swirl type centering and guiding" diamond-impregnated cable coring geological drill bit and a manufacturing method. Background technique [0003] Diamond core drill bits are widely used in geological exploration. The current diamond core drill bits have the following defects: [0004] 1. The flat lip surface of the traditional drill bit is not conducive to drilling centering and guiding. Continuous drilling may easily cause hole inclination, and there is no correction function for hole inclination. [0005] two. Due to the single formula, the cutter head of the traditional drill bit cannot adapt to the geological complexity requirements of different formations. When drilling into different rock formations, different drill bits need to be replaced, which increases the complexity o...

AI Technical Summary

Problems solved by technology

[0004] 1. The flat lip surface of the traditional drill bit is not conducive to drilling centering and guiding. Continuous drilling is likely to cause hole inclination, and there is no correction function for hole inclination

[0005] two. Due to the single formula, the cutter head of the traditional drill bit cannot adapt to the geological complexity requirements of different formations. When drilling into different rock formations, different drill bits need to be r...

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