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Multifunctional drilling rod

A multi-functional, drill pipe technology, applied in the direction of drill pipe, drill bit, drill pipe, etc., can solve problems such as low efficiency, excessive drilling gas, dust hazards, etc., and achieve the effect of solving low efficiency

Inactive Publication Date: 2016-12-07
CHENGDU CHENHONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low efficiency caused by frequent switching of drill pipes with different functions in the existing drill pipe construction process and gas overrun and dust hazards during drilling, the present invention provides a multifunctional drill pipe

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, a multi-functional drill rod is provided with a drilling head 1, a connecting rod 2, and a dust suction rod 3. One end of the connecting rod 2 is connected to the drilling and cutting head 1, and the other end is connected to the dust suction rod 3.

[0023] Such as figure 2 As shown, the drilling and cutting head 1 is provided with a drill bit 1.1, a drill shank main body 1.2, a drill bit water cavity 1.3, a drill bit connecting female head 1.4 and a high-pressure jet hole 1.5; Both ends; the drill bit water cavity 1.3 is arranged at the axial center position of the drill bit body 1.2; the high-pressure jet hole 1.5 is set on the drill bit body 1.2 and runs through the drill bit body 1.2. Preferably, the jet hole 1.5 is in the shape of an inner bell mouth, To enhance the water pressure of the sprayed water ...

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PUM

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Abstract

The invention discloses a multifunctional drilling rod. The multifunctional drilling rod is provided with a drilling-cutting head, a connecting rod and a dust collection rod; one end of the connecting rod is connected with the drilling-cutting head and the other end of the connecting rod is connected with the dust collection rod. The multifunctional drilling rod disclosed by the invention is provided with a high-pressure jetting hole, a water cavity, a dust collection hole and an air inlet / outlet cavity; the multifunctional drilling rod can realize switching of drilling and cutting functions and can also be used for collecting dust and gas in a drilling process; the problems that the efficiency is low when drilling rods with different functions are frequently switched in a drilling rod construction process, and the gas exceeds the limit and dust damages are caused in the drilling process are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of coal mining, and relates to equipment in the construction process of the pre-extraction gas channel before the official coal mining, in particular to the drilling and cutting of the pre-extraction gas channel and the effective collection of gas and dust ejected from the borehole during the construction process . Background technique [0002] Coal mine gas and dust accidents are one of the major underground disasters. If a gas and dust accident occurs, it will not only seriously damage the production environment, but also cause casualties, causing huge losses to the people, enterprises, and the country. Therefore, the elimination of gas overrun Gas and dust are the preconditions for preventing gas and dust accidents, and are also one of the important guarantees for safe production in mines. However, due to geological deposition, a large amount of gas and other toxic and harmful gases have accumulated in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/18E21B21/12E21B21/07E21B10/42E21F7/00
Inventor 严欣雨
Owner CHENGDU CHENHONG TECH