Self-propelled high-pressure water jet drill bit with front limiter for horizontal radial hole

Abstract

The utility model provides a self-propelled high-pressure water jet drill bit with a front limiter for a horizontal radial hole. The self-propelled high-pressure water jet drill bit comprises a rotating shaft, a spray head, a rock breaking jet hole, a limiting probe mounting hole, a limiting probe and a limiting probe mounting frame, and the other end of the limiting probe extends to the outside of the spray head through the limiting probe mounting hole formed in the axis of the spray head. The utility model provides a self-propelled high-pressure water jet drill bit with a front limiter for a horizontal radial hole, which is characterized in that the limiter is arranged at the front part of the drill bit and adopts a slender metal probe, namely a limiting probe; the limiting probe is made of high alloy steel which is smelted by steel, titanium, chromium and nickel and is resistant to abrasion and corrosion, good in toughness, good in hardness and high in strength, the length of the limiting probe stretching out of the spray head is designed, the service life of the drill bit and the spray head can be prolonged, and meanwhile the rock breaking efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of jet drill, more particularly to a kind of self-advancing high-pressure water jet drill with front limiter for horizontal radial hole. BACKGROUND

[0002] High-pressure water jet rock breaking technology is a way of cutting rock using high-pressure water jet. This technology converts the pressure of water into powerful cutting force for breaking rocks of various hardness. Compared with traditional rock breaking methods, it has the advantages of no vibration, no noise and no dust.

[0003] High-pressure water jet rock breaking equipment mainly consists of high-pressure water pump, nozzle and control system. The high-pressure water pump is used to pressurize water, then form high-speed jet through the nozzle, and the control system is used to control the operation of the equipment and adjust the parameters of water jet.

[0004] The existing high-pressure water jet rock breaking equipment mainly has the following problems: the distance between the nozzle and the rock breaking surface is not fixed. Usually, the distance between the nozzle and the rock breaking surface is relatively short, which causes the nozzle to be easily worn out and have a short service life. INVENTION CONTENTS

[0005] In view of the defects of the prior art, the utility model provides a kind of self-advancing high-pressure water jet drill with front limiter for horizontal radial hole, which can effectively solve the above problems.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a kind of self-advancing high-pressure water jet drill with front limiter for horizontal radial hole, comprising: rotating shaft (1), spray head (2), rock breaking jet hole (3), limit probe mounting hole (4), limit probe (5) and limit probe mounting rack (6);

[0008] The front end of the rotating shaft (1) is coaxially installed with the spray head (2); the front end face of the rotating shaft (1) is provided with the limit probe mounting rack (6), one end of the limit probe (5) is fixed with the limit probe mounting rack (6), the other end of the limit probe (5) extends to the outside of the spray head (2) through the limit probe mounting hole (4) opened at the axis of the spray head (2); the spray head (2) is provided with a plurality of rock breaking jet holes (3).

[0009] Preferably, the limit probe (5) is an elongated metal probe.

[0010] Preferably, the limit probe (5) is a high-alloy steel limit probe.

[0011] Preferably, the diameter of the limit probe mounting hole (4) is greater than the diameter of the limit probe (5).

[0012] Preferably, the limiting probe (5) has a diameter of 1mm.

[0013] Preferably, the limiting probe (5) extends from the nozzle (2) by 6mm.

[0014] Preferably, the nozzle (2) is a spherical nozzle.

[0015] Preferably, the nozzle (2) is provided with 7 rock-breaking jet holes (3), 2 of which are located close to the axial position and 5 of which are uniformly distributed around the spherical surface.

[0016] Preferably, the rock-breaking jet holes (3) each have a diameter of 1mm.

[0017] The self-advancing high-pressure water jet drill bit with a front limiting device for horizontal radial holes has the following advantages:

[0018] The self-advancing high-pressure water jet drill bit with a front limiting device for horizontal radial holes provided by the present application is provided with a limiting device at the front of the drill bit, and the limiting device is an elongated metal probe, i.e., a limiting probe. The limiting probe is made of high-alloy steel that is wear-resistant, corrosion-resistant, tough, hard and strong, and is made of steel, titanium, chromium and nickel. The length of the limiting probe extending from the nozzle is designed to prolong the service life of the drill bit and the nozzle and improve the rock-breaking efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 The overall structural view of the self-advancing high-pressure water jet drill bit with a front limiting device for horizontal radial holes provided by the present application is shown in the figure.

[0020] Fig. 2 The front view of the nozzle provided by the present application is shown in the figure.

[0021] Fig. 3 The sectional view of the self-advancing high-pressure water jet drill bit with a front limiting device for horizontal radial holes provided by the present application is shown in the figure.

[0022] In the figure, 1 represents a rotating shaft, 2 represents a nozzle, 3 represents a rock-breaking jet hole, 4 represents a limiting probe mounting hole, 5 represents a limiting probe, and 6 represents a limiting probe mounting frame. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0024] The utility model provides a kind of for horizontal radial hole's with front part stopper's self-advancing high-pressure water jet drill bit, provide new technology for grotto water damage control, the utility model equipment simple structure, easy to install, convenient to use, low in cost, limit probe is made of steel, titanium, chromium and nickel alloy smelting, wear resistance, corrosion resistance, toughness, good hardness, high strength, can be well controlled between drill bit and rock breaking surface Rock breaking distance, and long service life.

[0025] As Figs. 1-3 The utility model provides a kind of for horizontal radial hole's with front part stopper's self-advancing high-pressure water jet drill bit, include: rotating shaft 1, spray head 2, rock breaking jet hole 3, limit probe mounting hole 4, limit probe 5 and limit probe mounting frame 6;

[0026] The front end of the rotating shaft 1 coaxially installs the spray head 2;The front end surface of the rotating shaft 1 is provided with the limit probe mounting frame 6, one end of the limit probe 5 is fixed with the limit probe mounting frame 6, the other end of the limit probe 5 extends to the outside of the spray head 2 by the limit probe mounting hole 4 opened at the axis of the spray head 2;The spray head 2 is opened multiple rock breaking jet holes 3.

[0027] Specifically, limit probe 5, the material is steel, titanium, chromium and nickel smelting high alloy steel, this high alloy steel wear resistance, corrosion resistance, toughness, high hardness and strength;Rotating shaft 1 front end is provided with limit probe mounting frame 6, limit probe 5 is fixedly installed in limit probe mounting frame 6 by mechanical connection;The other end of limit probe 5 extends to rock breaking surface by limit probe mounting hole 4 at the axis of spray head 2.The diameter of limit probe mounting hole 4 is greater than the diameter of the limit probe 5, for example, the diameter of spray head 2 axis limit probe mounting hole 4 is 1.1mm.

[0028] As a preferred mode, limit probe 5 is slender metal probe, diameter 1mm, limit probe 5 length of 6mm is stretched out spray head 2.The length is the distance obtained by optimization, by optimizing the rock breaking distance between drill bit and rock breaking surface, can prolong the service life of drill bit while improving rock breaking efficiency.

[0029] Spray head 2 is spherical spray head, and spray head 2 is provided with 7 rock breaking injection holes 3, close to the axial position 2, and 5 are uniformly distributed in the spherical circumferential direction.Rock breaking injection hole 3 jet pressure is 60MPa, water jet impact rock surface angle is 30 °, and spray head rotation speed is 100-120L / min.

[0030] The utility model self-advancing high-pressure water jet drill bit, horizontal rock breaking pore diameter is 17.5mm.

[0031] The utility model discloses have the characteristics of fixed optimal rock breaking jet distance, high rock breaking efficiency, high jet speed and high jet pressure.

[0032] The utility model provides a kind of for horizontal radial hole's self-advancing high-pressure water jet drill bit with front limit stop, limit stop is set in drill bit front part, limit stop uses elongated metal probe, i.e.

[0033] The above-mentioned is only preferred implementation of the utility model, it should be pointed out, for the ordinary skilled person in the prior art, without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements should be considered the protection scope of the utility model.

Claims

1. A self-feeding high pressure water jet drill with front limiters for horizontal radial holes, characterized in that, Comprise: Rotary shaft (1), spray head (2), rock breaking jet hole (3), limit probe mounting hole (4), limit probe (5) and limit probe mounting rack (6); The front end of the rotary shaft (1) coaxially installs the spray head (2); the front end surface of the rotary shaft (1) is provided with the limit probe mounting rack (6), one end of the limit probe (5) is fixed with the limit probe mounting rack (6), the other end of the limit probe (5) extends to the outside of the spray head (2) through the limit probe mounting hole (4) opened at the shaft center of the spray head (2); the spray head (2) is provided with a plurality of rock breaking jet holes (3).

2. A self-feeding high pressure water jet drill bit with front limiters for horizontal radial boreholes according to claim 1, characterized in that, The limit probe (5) is an elongated metal probe.

3. A self-feeding high pressure water jet drill bit with front limiters for horizontal radial boreholes according to claim 1, characterized in that, The limit probe (5) is a high alloy steel limit probe.

4. A self-feeding high pressure water jet drill bit with front limiters for horizontal radial boreholes according to claim 1, characterized in that, The diameter of the limit probe mounting hole (4) is greater than the diameter of the limit probe (5).

5. A self-feeding high pressure water jet drill bit with front limiters for horizontal radial boreholes according to claim 1, characterized in that, The diameter of the limit probe (5) is 1mm.

6. A self-feeding high pressure water jet drill bit with front limiters for horizontal radial boreholes according to claim 1, characterized in that, The length of the limit probe (5) extending out of the spray head (2) is 6mm.

7. A self-feeding high pressure water jet drill bit with front limiters for horizontal radial boreholes according to claim 1, characterized in that, The spray head (2) is a spherical spray head.

8. A self-feeding high pressure water jet drill bit with front limiters for horizontal radial boreholes according to claim 1, characterized in that, The spray head (2) is provided with 7 rock breaking jet holes (3), 2 of which are close to the axial position, and 5 of which are uniformly distributed around the spherical surface.

9. A self-feeding high pressure water jet drill bit with front limiters for horizontal radial boreholes according to claim 1, characterized in that, The diameter of the rock breaking jet hole (3) is 1mm.

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