Combined high-voltage discharge type drilling device and drilling method

Abstract

The invention relates to a combined high-voltage discharge type drilling device and a drilling method. The combined high-voltage discharge type drilling device comprises a drill rod, two chambers, a laser range finder, a drill bit, a high-voltage electrode and a grounding electrode; an inner cavity of the two chambers is separated into a left side chamber and a right side chamber; the right side chamber is internally provided with a pulse current generating device and a signal transmission device; the drill rod is connected to the upper end of the two chambers, a revolution turntable is installed at the top end of the drill rod, the pulse current generating device is connected with the grounding electrode and the high-voltage electrode through a telescopic device, and the laser range finder is installed on the outer wall of the telescopic device; a grounding rod is mounted on the telescopic device, one end of the grounding rod is connected with the grounding electrode through the telescopic device, and one end of the grounding rod is exposed outside the telescopic device; and a rotation turntable is arranged on the lower surface of the left side chamber, the rotation turntable is connected with a pressure plate group, and the drill bit is connected with the pressure plate group through a connecting plate. The combined high-voltage discharge type drilling device performs drilling by means of pulse discharge shock waves, plasma channels and mechanical grinding, the drilling speed is increased, and the wear of the drill bit is reduced.

Description

[0001] Technical field: [0002] The invention relates to the field of drilling engineering, in particular to a combined high-voltage discharge drilling device and a drilling method. [0003] Background technique: [0004] A good drilling method and drill bit are an important part of drilling. From traditional rock breaking with mechanical drilling tools to rock breaking with cavitation water jets and high-voltage pulse discharge rock breaking, many scientific researchers are constantly exploring new and effective drilling methods. During the drilling process, the traditional mechanical drilling tools have a series of shortcomings such as easy wear of the drilling tools and slow drilling speed. The advantage of high-voltage pulse discharge crushing is that the crushing speed is fast, but its energy consumption is high, and the pulse transmission efficiency of the transmission line is low. Therefore, the two drilling methods are combined to make the drilling speed fast and the...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a combined high-voltage discharge drilling device. This combined high-voltage discharge drilling device is used to solve the problems of low drilling speed and serious drill bit wear in traditional mechanical grinding. Another purpose of the present invention is to provide this combined high-voltage discharge drilling device. Drilling method of discharge drilling device

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