CN216012695U - Nozzle liquid flow test device - Google Patents
Nozzle liquid flow test device Download PDFInfo
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- CN216012695U CN216012695U CN202121850881.8U CN202121850881U CN216012695U CN 216012695 U CN216012695 U CN 216012695U CN 202121850881 U CN202121850881 U CN 202121850881U CN 216012695 U CN216012695 U CN 216012695U
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- locking cone
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Abstract
The utility model discloses a nozzle liquid flow test device which comprises a seal cavity, wherein the cross section of the seal cavity is U-shaped; the U-shaped opening end of the sealing cavity is connected with the locking cone to form a liquid accumulation cavity; a first sealing ring groove is formed in the side wall of the sealing cavity, and a second sealing ring groove is formed in the locking cone; a first sealing element is sleeved on the outer circular surface of the nozzle workpiece, which is in contact with the first sealing ring groove, and a second sealing element is sleeved on the outer circular surface of the nozzle workpiece, which is in contact with the second sealing ring groove; the cross section of one end of the locking cone, which is far away from the sealing cavity, is a conical surface, and external threads are formed on the conical surface; the end part of the locking cone is provided with a locking nut with a conical surface matched with the conical surface of the locking cone, and an internal thread is arranged in the locking nut; a plurality of cutting grooves are evenly arranged on the conical surface of the locking cone along the axial direction. The utility model utilizes the conical surface between the locking cone and the locking nut to generate radial component force to hold the nozzle workpiece tightly, thereby solving the problems of difficult manufacture, difficult assembly and poor economic benefit.
Description
Technical Field
The utility model belongs to the technical field of processing and manufacturing tools, and relates to a nozzle liquid flow test device.
Background
The nozzle workpiece is formed into a swirl nozzle with a tangential flow hole and a closed swirl groove structural element by an outer shell and an inner shell through brazing. The nozzle workpiece is made of bronze alloy, is soft and is easy to cause external collision, collision and scratch of the workpiece; when a liquid flow test is carried out on the tangential flow hole of the nozzle workpiece, water is fed from the tangential flow hole outside the workpiece, and a medium is sprayed in a spiral way through the spiral groove, so that the nozzle workpiece has a good cooling effect. In the liquid flow test, a liquid accumulation cavity is formed at the water inlet. According to the characteristics of the nozzle workpiece, the design of the liquid accumulation cavity is sealed by the outer circular surface of the workpiece, and the two sides of the water inlet are sealed. Because two sealing structures of the hydrops cavity are distributed on the outer circular surface of the nozzle workpiece, no force application point exists along the axial direction, and the workpiece is easy to loosen from the hydrops cavity after being pressed. How to generate certain clamping force to limit the workpiece from axially moving in the effusion cavity is a difficult point and a key of the tool design. Generally, the nozzle liquid flow test device generates axial tension force from the end face of a water outlet through detachable connection (flange connection or threaded connection), but the design necessarily causes the depth and the size of a liquid accumulation cavity, is difficult to process and manufacture, has poor economic benefit and is not beneficial to assembly test of workpieces.
Disclosure of Invention
The utility model aims to provide a nozzle liquid flow test device, which utilizes the conical surface matching between a locking cone and a locking nut to generate radial component force to hold a nozzle workpiece tightly, and solves the problems of difficult manufacture, difficult assembly and poor economic benefit.
The utility model is realized by the following technical scheme:
a nozzle liquid flow test device comprises a seal cavity body used for assembling a nozzle workpiece, wherein the cross section of the seal cavity body is U-shaped; the U-shaped opening end of the sealing cavity is connected with the locking cone to form a liquid accumulation cavity; a first sealing ring groove is formed in the side wall of the sealing cavity, a second sealing ring groove is formed in the locking cone, the end part of the nozzle workpiece sequentially penetrates through the second sealing ring groove and the first sealing ring groove, and the end part of the nozzle workpiece extends out of the sealing cavity; a first sealing element is sleeved on the outer circular surface of the nozzle workpiece, which is in contact with the first sealing ring groove, and a second sealing element is sleeved on the outer circular surface of the nozzle workpiece, which is in contact with the second sealing ring groove;
the cross section of one end of the locking cone, which is far away from the sealing cavity, is a conical surface, and external threads are formed on the conical surface; the end part of the locking cone is provided with a locking nut with a conical surface matched with the conical surface of the locking cone, and an internal thread matched with the external thread on the conical surface of the locking cone is arranged in the locking nut; a plurality of cutting grooves for generating uniform deformation are uniformly formed on the conical surface of the locking cone along the axial direction;
and a water inlet joint is also arranged above the sealed cavity and is connected with a water inlet pipe of the nozzle workpiece.
Furthermore, the taper of the conical surface of the locking cone is 8-10 degrees.
Furthermore, the taper of the conical surface of the locking nut is 8-10 degrees.
Furthermore, the sealing cavity and the locking cone form a liquid accumulation cavity through argon arc welding.
Further, the cutting groove comprises six cutting grooves which are parallel to each other.
Further, the first sealing element and the second sealing element are both O-shaped rings.
Compared with the prior art, the utility model has the following beneficial technical effects:
the utility model discloses a nozzle liquid flow test device, which utilizes the conical surface matching between a locking cone and a locking nut to generate component force to hold a nozzle workpiece tightly, and solves the problems of difficult manufacture, difficult assembly and poor economic benefit. The utility model forms the hydrops cavity by welding the seal cavity and the locking cone, and provides the hydrops space by sealing the first sealing element, the second sealing element and the outer circular surface of the nozzle workpiece. The locking cone is a locking cone with a conical surface and an external thread, and a plurality of cutting grooves are uniformly distributed by linear cutting after the conical surface is machined and formed, so that the locking cone can be uniformly deformed during locking. The locking nut is screwed through the threads, and component force is generated by the conical surface fit between the locking cone and the locking nut, so that the nozzle workpiece is tightly held, and the nozzle workpiece is limited to axially float during a liquid flow test. During assembly, a first sealing element and a second sealing element are firstly arranged in a liquid accumulation cavity, then a nozzle workpiece is inserted into the liquid accumulation cavity through a second sealing ring groove and a first sealing ring groove in sequence, and the end part of the nozzle workpiece extends out of the side wall of a sealing cavity; and then the workpiece is tightly held by a tangential component force generated when the locking nut and the locking cone are screwed. The device has the advantages of ingenious design, simple structure, convenient use and stronger practicability.
Drawings
FIG. 1 is a schematic structural view of a nozzle workpiece according to the present invention;
FIG. 2 is a schematic structural view of a nozzle flow test apparatus according to the present invention;
FIG. 3 is a schematic structural diagram of a locking cone of the present invention;
wherein, 1 is seal chamber, 2 is the locking awl, 3 is lock nut, 4 are water supply connector, 5 are first sealing member, 6 are the second sealing member, 7 are the grooving, 8 are the shell body, 9 are interior casing, 10 are the water inlet, 11 are the delivery port, 12 are the whirl groove.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 1, 2 and 3, a nozzle liquid flow test device comprises a seal cavity 1 for assembling a nozzle workpiece, wherein the cross section of the seal cavity 1 is U-shaped; the U-shaped opening end of the sealed cavity 1 is connected with the locking cone 2 to form a liquid accumulation cavity; a first sealing ring groove is formed in the side wall of the sealing cavity 1, a second sealing ring groove is formed in the locking cone 2, the end part of the nozzle workpiece sequentially penetrates through the second sealing ring groove and the first sealing ring groove, and the end part of the nozzle workpiece extends out of the sealing cavity 1; a first sealing element 5 is sleeved on the outer circular surface of the nozzle workpiece, which is in contact with the first sealing ring groove, and a second sealing element 6 is sleeved on the outer circular surface of the nozzle workpiece, which is in contact with the second sealing ring groove;
the cross section of one end of the locking cone 2, which is far away from the sealing cavity 1, is a conical surface, and external threads are arranged on the conical surface; the end part of the locking cone 2 is provided with a locking nut 3 with a conical surface matched with the conical surface of the locking cone 2, and an internal thread matched with the external thread on the conical surface of the locking cone 2 is arranged in the locking nut 3; a plurality of cutting grooves 7 for generating uniform deformation are uniformly formed on the conical surface of the locking cone 2 along the axial direction;
and a water inlet joint 4 is also arranged above the sealed cavity 1, and the water inlet joint 4 is connected with a water inlet pipe of the nozzle workpiece.
As shown in fig. 1, the nozzle workpiece is brazed to form a swirl nozzle having a tangential flow hole and a closed swirl groove structure from an outer casing 8 and an inner casing 9. When a liquid flow test is carried out on the tangential flow hole of the nozzle workpiece, water is fed from the tangential flow hole outside the workpiece, and a medium is sprayed in a rotational flow mode through the spiral groove 12, so that the cooling effect is good. During the liquid flow test, a liquid accumulation cavity is formed at the water inlet 10, and the medium flows out from the water outlet 11. According to the characteristics of the nozzle workpiece, the liquid accumulation cavity is designed to be sealed by the outer circular surface of the workpiece and sealed at two sides of the water inlet 10. Because two sealing structures of the hydrops cavity are distributed on the outer circular surface of the nozzle workpiece, no force application point exists along the axial direction, and the workpiece is easy to loosen from the hydrops cavity after being pressed. Therefore, the utility model provides a nozzle liquid flow test device, which utilizes the conical surface matching between a locking cone 2 and a locking nut 3 to generate component force to hold a nozzle workpiece tightly and limit the workpiece to axially move in a liquid accumulation cavity, thereby solving the problems of difficult manufacture, difficult assembly and poor economic benefit.
As shown in fig. 2, the taper of the tapered surface of the locking cone 2 is 8 to 10 °.
Further, the taper of the conical surface of the locking nut 3 is 8-10 degrees.
Furthermore, the sealing cavity 1 and the locking cone 2 form a liquid accumulation cavity through argon arc welding.
As shown in fig. 3, further, the number of the cutting grooves 7 includes six, the cutting grooves 7 are parallel to each other, and six cutting grooves 7 are formed on the tapered surface of the locking cone 2 by wire cutting in the axial direction.
Further, the first sealing element 5 and the second sealing element 6 are both O-rings.
According to the technical scheme, the utility model provides the nozzle liquid flow test device, the nozzle workpiece is tightly held by utilizing the radial component force generated by conical surface matching between the locking cone 2 and the locking nut 3, and the problems of difficulty in manufacturing, difficulty in assembling and poor economic benefit are solved. According to the utility model, the sealing cavity 1 and the locking cone 2 are welded to form a liquid accumulation cavity, and the first sealing element 5 and the second sealing element 6 are sealed with the outer circular surface of the nozzle workpiece to provide a liquid accumulation space. The locking cone 2 is a locking cone with a conical surface and an external thread, and cutting grooves 7 are uniformly distributed at a plurality of positions by linear cutting after the conical surface is machined and formed so as to be convenient for uniform deformation during locking. The locking nut 3 is screwed through threads, and component force is generated by the conical surface matching between the locking cone 2 and the locking nut 3, so that the nozzle workpiece is tightly held, and the nozzle workpiece is limited to axially float during a liquid flow test. During assembly, a first sealing element 5 and a second sealing element 6 are firstly arranged in a liquid accumulation cavity, then a nozzle workpiece is inserted into the liquid accumulation cavity through a second sealing ring groove and a first sealing ring groove in sequence, and the end part of the nozzle workpiece extends out of the side wall of a sealing cavity 1; and then the workpiece is tightly held by a tangential component force generated when the locking nut 3 and the locking cone 2 are screwed. The device has the advantages of ingenious design, simple structure, convenient use and stronger practicability.
The embodiments given above are preferable examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical characteristics of the technical scheme of the utility model by a person skilled in the art belong to the protection scope of the utility model.
Claims (6)
1. The nozzle liquid flow test device is characterized by comprising a seal cavity (1) for assembling a nozzle workpiece, wherein the cross section of the seal cavity (1) is U-shaped; the U-shaped opening end of the sealed cavity body (1) is connected with the locking cone (2) to form a liquid accumulation cavity; a first sealing ring groove is formed in the side wall of the sealing cavity (1), a second sealing ring groove is formed in the locking cone (2), the end part of the nozzle workpiece sequentially penetrates through the second sealing ring groove and the first sealing ring groove, and the end part of the nozzle workpiece extends out of the sealing cavity (1); a first sealing element (5) is sleeved on the outer circular surface of the nozzle workpiece, which is in contact with the first sealing ring groove, and a second sealing element (6) is sleeved on the outer circular surface of the nozzle workpiece, which is in contact with the second sealing ring groove;
the cross section of one end of the locking cone (2) far away from the sealing cavity (1) is a conical surface, and external threads are formed on the conical surface; the end part of the locking cone (2) is provided with a locking nut (3) with a conical surface matched with the conical surface of the locking cone (2), and an internal thread matched with the external thread on the conical surface of the locking cone (2) is arranged in the locking nut (3); a plurality of cutting grooves (7) for generating uniform deformation are uniformly formed on the conical surface of the locking cone (2) along the axial direction;
a water inlet joint (4) is also arranged above the sealed cavity (1), and the water inlet joint (4) is connected with a water inlet pipe of the nozzle workpiece.
2. The nozzle flow test device according to claim 1, wherein the taper of the tapered surface of the locking cone (2) is 8-10 °.
3. The nozzle flow test device according to claim 2, wherein the taper of the tapered surface of the locking nut (3) is 8-10 °.
4. The nozzle flow test device according to claim 1, wherein the seal cavity (1) and the locking cone (2) form a liquid accumulation cavity by argon arc welding.
5. A nozzle flow test device according to claim 1, wherein said cutting grooves (7) comprise six cutting grooves (7) which are circumferentially and uniformly distributed.
6. A nozzle flow test device according to claim 1, wherein the first seal (5) and the second seal (6) are both O-rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121850881.8U CN216012695U (en) | 2021-08-10 | 2021-08-10 | Nozzle liquid flow test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121850881.8U CN216012695U (en) | 2021-08-10 | 2021-08-10 | Nozzle liquid flow test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216012695U true CN216012695U (en) | 2022-03-11 |
Family
ID=80588369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121850881.8U Active CN216012695U (en) | 2021-08-10 | 2021-08-10 | Nozzle liquid flow test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216012695U (en) |
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2021
- 2021-08-10 CN CN202121850881.8U patent/CN216012695U/en active Active
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