High-pressure water jet drill bit capable of punching and cutting by switching of water pressure

A high-pressure water jet and punching technology, which is applied to drill bits, liquid/gas jet drilling, drilling equipment, etc., can solve problems such as single operation mode, complex structure, and no repeated switching, and achieve the effect of simplifying the structure

Inactive Publication Date: 2006-05-24
TAIYUAN UNIV OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

At present, the operation mode of the hydraulic drill bit using high-pressure water jet technology is relatively simple, and it is mainly used for water jet drilling.
CN1451839A discloses a "hydraulic drill bit capable of remote control of drilling, slitting and deviation correction". As a switching powe

Method used

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  • High-pressure water jet drill bit capable of punching and cutting by switching of water pressure
  • High-pressure water jet drill bit capable of punching and cutting by switching of water pressure

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Embodiment Construction

[0012] Such as figure 1 , 2 As shown, a high-pressure water jet drill bit capable of hydraulically switching punching and slotting includes a housing 2 and a nozzle 6 connected to the top of the housing. A drill core 3, a return spring 4, and a pressure regulating valve 5 are sequentially installed in the inner cavity of the housing. The drill core 3 is a stepped shaft structure with three different diameters. The shaft section with a large diameter is slidingly fitted with the inner cavity of the casing 2, and a diversion channel 10 and a vertical diversion hole 11 are arranged along the axis. The inner hole of the pressure regulating valve 5 is slidingly fitted, the return spring 4 is set in the middle section of the step shaft, the housing 2 is provided with a horizontal diversion channel 9 and a vertical diversion channel 12, and the tail of the housing 2 is installed with a positioning guide hole 14 Indenter 1.

[0013] The diameter of the guide hole 14 of the position...

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Abstract

This invention discloses high pressured hydraulic jet drill for punching or slitting, which contains drill core, reset spring, pressure adjusting valve, positioning press head with flow guiding hole installed on tail part of shell, the inner cavity of drill core and shell is sliding fit and with flow guiding way. Said invention uses high pressured water as medium and power to switch work state to simplify drill structure with repeatedly switching function in hydraulic punching and slitting.

Description

Technical field: [0001] The invention belongs to the field of mining drilling, and relates to a hydraulic drill bit which adopts high-pressure water jet technology to implement large-aperture horizontal, vertical and turning drilling and slotting on various rock and mineral layers underground and on the ground. Background technique: [0002] In order to improve the permeability of the rock mass, the rock mass can be slit in the drill hole to break the rock mass to increase the number of cracks in the rock mass. High-pressure water jet technology is a new technology developed, which is characterized by the high concentration of energy through high-pressure water jet, and high-efficiency rock breaking and cutting on ore rock formations. At present, the hydraulic drill bit using high-pressure water jet technology has a relatively simple operation mode, and is mainly used for water jet drilling. CN1451839A discloses a "hydraulic drill bit capable of remote control of drilling, ...

Claims

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Application Information

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IPC IPC(8): E21B7/18E21B10/60
Inventor 冯增朝赵阳升康军常宗旭
Owner TAIYUAN UNIV OF TECH
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