High-efficiency hard rock drill bit

A hard rock and drill bit technology, applied in the field of drilling construction equipment, can solve the problems of long construction period and low drilling efficiency, etc.

Pending Publication Date: 2020-10-13
CHINA COAL SPECIAL DRILLING ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although the progress of drilling technology is obvious to all, there are still disadvantages of low drilling efficiency and long construction period in the drilling construction of hard rock formations.

Method used

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  • High-efficiency hard rock drill bit
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  • High-efficiency hard rock drill bit

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture change...

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Abstract

The invention discloses a high-efficiency hard rock drill bit comprising a supporting plate, a supporting cylinder, a plurality of outer ring cutter bits and a plurality of inner ring cutter bits. Thesupporting plate is positioned in the supporting cylinder and fixed on the inner wall of the supporting cylinder; the plurality of outer ring cutter bits are fixed on the lower end cylinder edge of the supporting cylinder at intervals along the circumferential direction of the supporting cylinder; the plurality of inner ring cutter bits are fixed on the lower surface of the supporting plate; andthe plurality of outer ring cutter bits downwards exceed the plurality of inner ring cutter bits. According to the high-efficiency hard rock drill bit, as the outer ring cutter bits downwardly exceedthe inner ring cutter bits, a hole bottom rock stratum shape with a "concave" structure can be formed in the drilling process, and a groove is firstly cut at the outer edge of the drill bit, so that the whole structure of the inner rock surface and the outer rock surface of the drill bit is damaged, and the stroke free surface facilitates rock breaking of inner cutters, the rock breaking efficiency is improved, and the purposes of improving the drilling efficiency, reducing the construction cost and shortening the construction period are realized.

Description

technical field [0001] The invention relates to the field of drilling construction equipment, in particular to a high-efficiency hard rock drill bit. Background technique [0002] With the progress of science and technology in our country and the improvement of mechanization and intelligence, the construction technology of drilling method has been continuously developed, which can meet different construction fields and complex geological conditions. my country's drilling construction technology has been applied in many fields such as oil exploitation, coal mine construction, geological survey, pile foundation anchorage, etc., and has achieved remarkable economic and social benefits. [0003] At present, although the progress of drilling technology is obvious to all, there are still disadvantages of low drilling efficiency and long construction period in the drilling construction of hard rock formations. Contents of the invention [0004] The technical problem to be solved...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/43E21B10/08E21B10/50E21B10/54E21B10/60E21B10/18
CPCE21B10/43E21B10/08E21B10/50E21B10/54E21B10/602E21B10/18
Inventor 王宗金曹化春亓燕秋杨光刘伟军付新鹏冯金亮李新利
Owner CHINA COAL SPECIAL DRILLING ENG
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