CN203441365U - Water jet cutter - Google Patents

Abstract

The utility model discloses a water jet, which comprises a drill pipe head, a drill pipe, a water pipe fixing ring, a drill pipe tail, a tee, a nozzle, a retaining ring, an O-ring, a water knife seat and a tee. The top of the waterjet, the front end of the drill pipe head is connected with the drill pipe, the other end of the drill pipe is connected with the tail of the drill pipe, the water knife seat is installed in the drill pipe, and there is also an inner pipe inside the drill pipe, which is connected with the drill pipe. The rods are positioned by the water pipe fixing ring. The top of the inner pipe is connected with the tee. The tail of the drill pipe is located at the tail end of the water jet, and the other end of the tail of the drill pipe is provided with a spiral interface. Around the outer diameter of the water jet seat A socket is provided, and the nozzle is inserted into the socket and screwed with it through threads. The utility model has a simple structure, can realize the integration of drilling and cutting without changing the original drilling rig of the coal mine enterprise, can effectively shorten the construction time, reduce the work intensity of the operators, improve the gas control effect, increase the driving speed, and fully Use the original drilling rig to reduce costs.

Description

a water jet

technical field

The utility model relates to the field of coal mining machinery processing and manufacturing, in particular to a water knife.

Background technique

Coal and gas outburst (abbreviated as outburst) is one of the serious natural disasters in the process of coal mining. With the increase of mining depth, some low-gas mines or high-gas mines gradually become outburst mines, and the number of outbursts is increasing day by day, and the disasters caused are also becoming more and more serious. Due to the complex process of the outburst prevention measures, the tunneling speed of the coal roadway is slow, resulting in a serious imbalance in the mining ratio. At present, most coal seam roadways with serious outburst mines have a relatively slow driving speed. According to the statistics of the outburst operating sites, most of the outbursts occurred in the coal roadway excavation face, accounting for 66.2% of all outburst times. At the same time, the existing excavation anti-outburst measures have complex procedures and slow excavation speed, resulting in a serious imbalance in the excavation ratio.

Currently, high-pressure water jets or high-pressure abrasive jets are used to cut seams in coal seams, which can not only increase the exposed area of coal, increase air permeability, but also reduce gas pressure, promote the redistribution of ground stress, and increase coal (rock) seam gas. Discharge capacity, play the role of anti-burst. However, in practical applications, the high-pressure water jet slotting technology generally needs to be drilled by a drilling rig first, and then the slotting is performed by high-pressure water jet equipment. The conventional method requires two sets of independent equipment, and the drilling tool and slotting equipment need to be moved many times during the process, and the hole may be damaged and cannot be slotted when slotting after drilling. The above problems cause the construction auxiliary time to be too long, the progress is slow, and the efficiency is low, which has become an important factor affecting the speed of excavation.

Utility model content

The purpose of the utility model is to provide a water jet, which can effectively solve the problems in the background technology.

In order to solve the existing problems in the background technology, it includes drill pipe head 1, drill pipe 2, water pipe fixing ring 3, drill pipe tail 4, tee 5, nozzle 6, retaining ring 7, O-ring 8, water knife seat 9 and tee 10, the drill pipe head 1 is located at the top of the water jet 11, the front end of the drill pipe head 1 is connected with the drill pipe 2, the other end of the drill pipe 2 is connected with the drill pipe tail 4, and the water jet seat 9 is installed on the drill pipe Inside the rod 2, there is also an inner pipe inside the drill pipe 2, the inner pipe and the drill pipe 2 are positioned through the water pipe fixing ring 3, the top of the inner pipe is connected with the tee 5, and the drill pipe tail 4 is located and the other end of the drill pipe tail 4 is provided with a screw interface, the outer diameter of the water knife seat 9 is provided with a socket, the nozzle 6 is inserted in the socket and screwed with it through threads, the nozzle 6 There is a circle of notches near the bottom, and a retaining ring 7 and an O-ring 8 are arranged in the notch, and a channel connected with the nozzle 6 and the tee 10 is provided in the water knife seat 9, and the tee 10 is screwed on the In the water knife seat 9, a notch is provided near the rear end of the tee 10, and a retaining ring 7 and an O-ring 8 are arranged in the notch.

Due to the adoption of the above technical scheme, the utility model has the following beneficial effects: the structure is simple, and the integration of drilling and cutting can be realized on the basis of not changing the original drilling rig of the coal mining enterprise, which can effectively shorten the construction time and reduce the work intensity of the operators. Improve the effect of gas control, increase the speed of excavation, and make full use of the original drilling rigs to reduce costs.

Description of drawings

In order to illustrate the utility model more clearly, the embodiments will be briefly introduced below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a sectional view taken along line A-A of Fig. 1 .

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the technical solutions in the utility model embodiment will be clearly and completely described below in conjunction with the accompanying drawings in the utility model embodiment.

Referring to Fig. 1-2, this specific embodiment is realized by adopting the following technical scheme, which includes a drill pipe head 1, a drill pipe 2, a water pipe fixing ring 3, a drill pipe tail 4, a tee 5, a nozzle 6, a retaining ring 7, O-ring 8, water jet seat 9 and tee 10, the drill pipe head 1 is located at the top of the water jet 11, the front end of the drill pipe head 1 is connected with the drill pipe 2, and the other end of the drill pipe 2 is connected with the drill pipe tail 4 , the water knife seat 9 is installed in the drill pipe 2, and an inner pipe is also arranged in the drill pipe 2, and the inner pipe and the drill pipe 2 are positioned through the water pipe fixing ring 3, and the top of the inner pipe is connected with the tee 5, The drill pipe tail 4 is located at the tail end of the water jet 11, and the other end of the drill pipe tail 4 is provided with a helical joint, and the outer diameter of the water knife seat 9 is provided with a socket, and the nozzle 6 is inserted in the socket and connected with the screw thread. A notch is provided near the bottom of the nozzle 6, and a retaining ring 7 and an O-ring 8 are arranged in the notch, and a passage connecting the nozzle 6 and the tee 10 is provided in the water knife seat 9. The tee 10 is threadedly connected in the water knife seat 9, a notch is provided near the rear end of the tee 10, and a retaining ring 7 and an O-ring 8 are arranged in the notch.

Due to the adoption of the above technical solutions, this specific embodiment has the following beneficial effects: the structure is simple, and the integration of drilling and cutting can be realized without changing the original drilling rig of the coal mining enterprise, which can effectively shorten the construction time and reduce the work intensity of the operators , improve the effect of gas control, increase the speed of excavation, and make full use of the original drilling rigs to reduce costs.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.

Claims (1)

1. a water cutter, it is characterized in that it comprises drilling rod head (1), drilling rod (2), water pipe retainer ring (3), shank (4), threeway (5), nozzle (6), back-up ring (7), O type circle (8), water tool rest (9) and threeway (10), drilling rod head (1) is positioned at the top of water cutter (11), the front end of this drilling rod head (1) is connected with drilling rod (2), the other end of drilling rod (2) is connected with shank (4), water tool rest (9) is arranged in drilling rod (2), in drilling rod (2), be also provided with an inner tube, between inner tube and drilling rod (2), by water pipe retainer ring (3), locate, the top of this inner tube is connected with threeway (5), shank (4) is positioned at the tail end of water cutter (11), and be provided with spiral interface at the other end of shank (4), the external diameter of water tool rest (9) is provided with jack around, nozzle (6) is inserted in jack and spins with it by screw thread, near the bottom of this nozzle (6), be provided with a ring recess mouth, in notch, be provided with back-up ring (7) and O type circle (8), in described water tool rest (9), be provided with the passage being connected with threeway (10) with nozzle (6), threeway (10) is screwed in water tool rest (9) by screw thread, near the rear end of this threeway (10), be provided with a ring recess mouth, in notch, be provided with back-up ring (7) and O type circle (8).

Images