CN210650254U

CN210650254U - Rotary sand valve

Info

Publication number: CN210650254U
Application number: CN201920547261.3U
Authority: CN
Inventors: 李春潜
Original assignee: Foshan Shiyuan Machinery Equipment Co Ltd
Current assignee: Foshan Shiyuan Machinery Equipment Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-06-02
Anticipated expiration: 2029-04-19

Abstract

The utility model relates to a water cutting equipment subassembly structure, especially rotation type sand valve. The sand valve comprises a shell, wherein a bearing is arranged in the shell, a rotating body is arranged in the bearing, a high-pressure pipe assembly which vertically penetrates through the rotating body is arranged in the middle of the rotating body, an annular concave part is arranged on the side wall of the rotating body, and a sand passing hole which vertically penetrates through the annular concave part is formed in the annular concave part; a lateral opening is formed in the position, corresponding to the annular concave part, of the shell, and a sand inlet transition pipe is connected into the lateral opening; the bottom of the rotating body is connected with a bottom cover, and a sand outlet nozzle is arranged on the bottom cover corresponding to the sand passing hole. The utility model discloses a circulation of grit from advancing sand mouth to going out the sand mouth is accomplished to the vacuum negative pressure of during operation and sand passing hole for advance sand transition pipe at the machine during operation and keep static, avoided the winding of advancing the sand pipeline, guaranteed to last stable confession sand, avoided because supply the unstable influence to the cutting quality of sand, also need not frequent shut down to recover by winding advance sand pipeline, improved machining efficiency.

Description

Rotary sand valve

Technical Field

The utility model relates to a water cutting equipment subassembly structure, especially rotation type sand valve.

Background

Water cutting equipment is also called water jet cutter, which is equipment for cutting objects by utilizing high-pressure water flow, and is widely applicable to various fields due to high cutting precision and wide material application. When the multifunctional water jet cutting head or the water jet robot is used for cutting a hard object, sand and high-pressure water are mixed and then the object is cut. The cutting head needs to rotate in some cutting processes, the high-pressure water pipe which follows the cutting head also rotates together, meanwhile, the sand conveying pipe also rotates, and when the rotation is larger than 360 x N (N is the number of times) degrees, the problem that the sand conveying pipe is wound can occur, so that the problems of unsmooth sand conveying and non-uniformity are caused, a cutting object is damaged, and cutting processing cannot continue to be carried out and needs to be stopped for recovery.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can avoid sending the sand pipe winding, guarantee the long-time steady operation of water sword, need not the rotation type sand valve of frequent shut down maintenance.

The sand valve comprises a shell arranged on a sand valve fixing plate on a rack, a bearing is arranged in the shell, a rotating body is arranged in the bearing, a high-pressure pipe assembly which vertically penetrates through the middle of the rotating body is arranged in the middle of the rotating body, an annular concave part is arranged on the side wall of the rotating body, and a sand passing hole which vertically penetrates through the annular concave part is formed in the annular concave part; a lateral opening is formed in the position, corresponding to the annular concave part, of the shell, and a sand inlet transition pipe is connected into the lateral opening; the bottom of the rotating body is connected with a bottom cover, and a sand outlet nozzle is arranged on the bottom cover corresponding to the sand passing hole.

Preferably, the housing includes an upper housing having a larger outer diameter at an upper portion and a lower housing having a smaller outer diameter at a lower portion, and the housing has a vertical mounting hole vertically penetrating therethrough, in which the bearing, the rotator, and the high pressure pipe assembly are mounted.

Preferably, the vertical mounting hole comprises an upper mounting hole and a lower mounting hole, the diameter of the upper mounting hole is larger than that of the lower mounting hole, and the bearing is mounted in the upper mounting hole.

Preferably, the top side wall of the rotating body is fixed with the inner ring of the bearing; the annular inner concave part is an inclined groove-shaped structure formed by the side wall which is concave inwards and obliquely below.

Preferably, the sand passing holes are located in the annular inner concave part and distributed in an equiangular and circumferential mode.

Preferably, the side walls of the rotating body above and below the annular concave part are respectively provided with a sealing ring.

Preferably, a high-pressure pipe hole through which the high-pressure pipe assembly vertically penetrates is formed in the central shaft of the rotating body, the top of the high-pressure pipe hole is of an inverted cone structure, the high-pressure pipe assembly comprises a high-pressure pipe and an inverted cone-shaped clamping sleeve located on the high-pressure pipe, and a compression nut which compresses the clamping sleeve in the inverted cone structure at the top of the high-pressure pipe hole is arranged above the clamping sleeve.

Preferably, a sand outlet nozzle mounting hole which is vertically communicated is formed in the bottom cover corresponding to the sand passing hole, and the sand outlet nozzle is fixed in the sand outlet nozzle mounting hole.

Preferably, the bottom cover is provided with a sealing nut at a position symmetrical to the sand outlet nozzle to fix the bottom cover on the rotating body.

The utility model discloses a circulation of grit from advancing sand mouth to going out between the sand mouth is accomplished through the sand hole of crossing on the vacuum negative pressure of equipment during operation and the rotator to the rotation of rotation type sand valve for though go out sand mouth and high-pressure tube and rotate together at the machine during operation, but advance sand transition pipe and still keep static, avoided advancing the winding of sand pipeline, guaranteed the stable sand that supplies that lasts, avoided because supply the unstable influence to cutting quality of sand, also need not frequent shut down to recover by winding advance sand pipeline, machining efficiency is improved.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

fig. 2 is a schematic perspective view of an embodiment of the present invention.

Detailed Description

As shown in fig. 1-2, the rotary sand valve of the present embodiment includes a housing 2 mounted on a sand valve fixing plate 1 on a frame, a bearing 3 is disposed in the housing 2, a rotating body 4 is disposed inside the bearing 3, a high pressure pipe assembly 5 vertically penetrating through the middle of the rotating body 4 is disposed in the middle of the rotating body 4, an annular concave portion 6 is disposed on a side wall of the rotating body 4, and a sand passing hole 7 vertically penetrating through the annular concave portion 6 is disposed at the annular concave portion 6; a lateral opening 8 is formed in the shell 2 corresponding to the annular concave part 7, and a sand inlet transition pipe 9 is connected into the lateral opening 8; the bottom of the rotating body 4 is connected with a bottom cover 10, and a sand outlet 11 is arranged on the bottom cover 10 corresponding to the sand through hole 7.

When the rotary sand valve works, high-pressure water flows through the high-pressure pipe assembly 5, when the rotary sand valve works, the water flow and sand go round to perform cutting operation at a nozzle of water jet cutter equipment, vacuum negative pressure is formed in a sand inlet pipeline at the moment, the sand continuously runs in the sand inlet pipeline by utilizing the vacuum negative pressure, the sand enters from the sand inlet transition pipe 9 and firstly reaches the annular concave part 6 after entering, and the sand downwards flows into the sand outlet nozzle 11 and flows out of the rotary sand valve from the sand outlet hole due to the sand passing hole 7 in the annular concave part 6 and the downward suction in the sand passing hole 7, so that the sand inlet transition pipe 9 is exploded, and the purpose of avoiding winding is realized.

The rotary sand valve can avoid pipeline winding by connecting wires, water pipes and sand pipes to the electric slip ring.

In the specific structure of the housing, in the present embodiment, the housing 2 includes an upper housing 12 having a larger outer diameter at an upper portion and a lower housing 13 having a smaller outer diameter at a lower portion, the housing has a vertical mounting hole 14 vertically penetrating therethrough, and the bearing 3, the rotator 4 and the high pressure pipe assembly 5 are mounted in the vertical mounting hole 14.

In this embodiment, the vertical mounting hole 14 includes an upper mounting hole 15 and a lower mounting hole 16, the upper mounting hole 15 has a larger diameter than the lower mounting hole 16, and the bearing 3 is mounted in the upper mounting hole 15.

In this embodiment, the top side wall of the rotating body 4 is fixed to the inner ring of the bearing 3; the annular inner concave part 6 is an oblique groove-shaped structure formed by the side wall which is concave inwards and obliquely downwards.

In this embodiment, the sand passing holes 7 are located in the annular concave portion 6 and are distributed circumferentially at equal angles. In this embodiment, the diameter of the sand through holes is phi 3.2mm, and the number of the sand through holes is 20 or more than 20.

In this embodiment, the rotating body 4 is provided with sealing rings 17 on the side walls above and below the annular concave portion 6. The sealing ring 17 is arranged on the rotating body, so that the vacuum suction force is not lost in the rotating process, and because of the vacuum suction force, no sand dust exists on the contact surface of the sealing ring 17, and the service life of the sealing ring can be greatly prolonged.

In this embodiment, a high-pressure pipe hole 18 through which the high-pressure pipe assembly vertically passes is formed in the central axis of the rotating body 4, the top of the high-pressure pipe hole 18 is in an inverted cone structure, the high-pressure pipe assembly 5 includes a high-pressure pipe 19 and an inverted cone-shaped clamping sleeve 20 located on the high-pressure pipe 19, and a compression nut 21 which compresses the clamping sleeve 20 in the inverted cone structure at the top of the high-pressure pipe hole is arranged above the clamping sleeve 20.

In this embodiment, a sand outlet nozzle mounting hole 22 is vertically through-penetrating the bottom cover 10 at a position corresponding to the sand passing hole 7, and the sand outlet nozzle 11 is fixed in the sand outlet nozzle mounting hole 22.

In this embodiment, a sealing nut 23 is disposed on the bottom cover 10 at a position symmetrical to the sand outlet 11 to fix the bottom cover 10 to the rotary body 4.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. Rotation type sand valve, its characterized in that: the sand valve fixing plate comprises a shell arranged on a sand valve fixing plate on a rack, a bearing is arranged in the shell, a rotating body is arranged in the bearing, a high-pressure pipe assembly which vertically penetrates through the middle of the rotating body is arranged on the middle of the rotating body, an annular concave part is arranged on the side wall of the rotating body, and a sand passing hole which vertically penetrates through the annular concave part is formed in the annular concave part; a lateral opening is formed in the position, corresponding to the annular concave part, of the shell, and a sand inlet transition pipe is connected into the lateral opening; the bottom of the rotating body is connected with a bottom cover, and a sand outlet nozzle is arranged on the bottom cover corresponding to the sand passing hole.

2. The rotary sand valve as recited in claim 1 wherein: the housing comprises an upper housing with a larger outer diameter at the upper part and a lower housing with a smaller outer diameter at the lower part, a vertical mounting hole which vertically penetrates through is arranged inside the housing, and the bearing, the rotating body and the high-pressure pipe assembly are all mounted in the vertical mounting hole.

3. The rotary sand valve as recited in claim 2 wherein: the vertical mounting holes comprise upper mounting holes and lower mounting holes, the diameter of each upper mounting hole is larger than that of each lower mounting hole, and the bearings are mounted in the upper mounting holes.

4. The rotary sand valve as recited in claim 3 wherein: the top side wall of the rotating body is fixed with the inner ring of the bearing; the annular inner concave part is an inclined groove-shaped structure formed by the side wall which is concave inwards and obliquely below.

5. The rotary sand valve as recited in claim 4 wherein: the sand passing holes are located in the annular inner concave part and are distributed in an equiangular circumference mode.

6. The rotary sand valve as recited in claim 5 wherein: and the side walls of the rotating body above and below the annular concave part are respectively provided with a sealing ring.

7. The rotary sand valve as recited in claim 6 wherein: the central shaft of the rotator is provided with a high-pressure pipe hole through which the high-pressure pipe assembly vertically passes, the top of the high-pressure pipe hole is of an inverted cone structure, the high-pressure pipe assembly comprises a high-pressure pipe and an inverted cone clamping sleeve positioned on the high-pressure pipe, and a compression nut which compresses the clamping sleeve in the inverted cone structure at the top of the high-pressure pipe hole is arranged above the clamping sleeve.

8. The rotary sand valve as recited in claim 7 wherein: and a vertically through sand outlet nozzle mounting hole is formed in the position, corresponding to the sand passing hole, on the bottom cover, and the sand outlet nozzle is fixed in the sand outlet nozzle mounting hole.

9. The rotary sand valve as recited in claim 8 wherein: the bottom cover is arranged at the symmetrical position of the sand outlet nozzle and is fixed on the rotating body through a sealing nut.