CN220102062U - Mechanical seal structure and motor - Google Patents
Mechanical seal structure and motor Download PDFInfo
- Publication number
- CN220102062U CN220102062U CN202321726835.6U CN202321726835U CN220102062U CN 220102062 U CN220102062 U CN 220102062U CN 202321726835 U CN202321726835 U CN 202321726835U CN 220102062 U CN220102062 U CN 220102062U
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- China
- Prior art keywords
- shaft body
- movable
- mechanical seal
- ring
- movable ring
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- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model relates to a mechanical sealing structure and a motor, and belongs to the technical field of motor sealing. According to the utility model, the elastic force application part can apply force to the movable ring through the movable adjusting part after the mechanical sealing part is installed, so that the position of the movable ring on the shaft body is adjusted, the mechanical sealing part is kept at the working position through adjustment of the elastic force application part, and therefore, the error of the working position after the mechanical sealing part is installed can be eliminated, and the sealing performance of the mechanical sealing part is ensured.
Description
Technical Field
The utility model relates to a mechanical sealing structure and a motor, and belongs to the technical field of motor sealing.
Background
Currently, a mechanical seal is a shaft seal device of a rotary machine, such as an electric motor. Since the motor shaft penetrates inside and outside the motor so that a circumferential gap exists between the motor shaft and the motor, when the motor is in a working environment, a medium outside the motor leaks into the motor through the gap, and therefore, a shaft seal device for preventing leakage is necessary.
The traditional shaft seal device is directly installed in the position needing sealing on the shaft when in use, the position of the mechanical sealing element after being installed is relatively fixed, and the working position of the mechanical sealing element after being installed is error due to errors in the machining process of the machine barrel, so that the sealing performance of the mechanical sealing element can be influenced.
Therefore, in order to eliminate the error of the working position of the mechanical seal after installation, thereby ensuring the sealing performance of the mechanical seal, a new mechanical seal assembly with an optimized structure and a motor are required.
Disclosure of Invention
The utility model aims to provide a mechanical sealing structure and a motor, which can eliminate errors of working positions of mechanical sealing elements after installation, thereby ensuring sealing performance of the mechanical sealing elements.
The utility model provides a mechanical seal structure and a motor, which are characterized by comprising the following components:
a shaft body;
the mechanical sealing piece comprises a stationary ring fixedly sleeved on the shaft body and a movable ring slidingly sleeved on the shaft body;
the movable adjusting piece is movably sleeved on the shaft body and indirectly or directly abuts against one end, opposite to the stationary ring, of the movable ring; and
the elastic force application part is arranged on the shaft body and is positioned on one side of the movable adjusting part, which is opposite to the movable ring, and is used for applying force to the movable adjusting part so as to adjust the position of the movable ring on the shaft body, thereby keeping the mechanical sealing part at the working position.
In the mechanical seal structure provided by the utility model, the mechanical seal structure can also have the following characteristics:
wherein the mechanical seal further comprises:
the limiting piece is sleeved on the shaft body and positioned between the movable adjusting piece and the movable ring, and a limiting groove with an opening at the end facing the movable ring is formed in one end of the limiting piece; and
a return spring sleeved on the shaft body and positioned between the limiting piece and the movable ring, one end of the return spring extends into the limiting groove and is abutted with the bottom of the limiting groove, the other end of the return spring is indirectly or directly abutted with the movable ring,
the movable ring is abutted with the static ring under the action of the return spring,
the limiting piece is indirectly or directly abutted against the movable adjusting piece under the action of the reset spring.
In the mechanical seal structure provided by the utility model, the mechanical seal structure can also have the following characteristics:
the outer wall of the movable ring is provided with an outward-extending everting part, and one end of the return spring is abutted to the everting part.
In the mechanical seal structure provided by the utility model, the mechanical seal structure can also have the following characteristics:
the elastic force application part is a compression spring, one end of the compression spring is abutted against the surface of the shaft body, and the other end of the compression spring is abutted against the end face of the movable adjusting part.
In the mechanical seal structure provided by the utility model, the mechanical seal structure can also have the following characteristics:
the shaft body is provided with a step surface, and one end of the elastic force application member is abutted against the step surface.
In the mechanical seal structure provided by the utility model, the mechanical seal structure may further have the following characteristics:
the gasket is sleeved on the shaft body and is arranged between the movable adjusting piece and the limiting piece in a contact mode.
The present utility model provides an electric machine having such features, including a mechanical seal arrangement as described above.
Therefore, compared with the prior art, the utility model has the following advantages:
according to the sealing structure and the motor, the motor comprises a mechanical sealing structure, the mechanical sealing structure comprises a shaft body, a mechanical sealing part, a movable adjusting part and an elastic force application part, the mechanical sealing part comprises a stationary ring fixedly sleeved on the shaft body and a movable ring slidingly sleeved on the shaft body, the movable adjusting part is movably sleeved on the shaft body and indirectly or directly abuts against one end of the movable ring, which is opposite to the stationary ring, of the stationary ring, the elastic force application part is arranged on the shaft body and is positioned on one side of the movable adjusting part, which is opposite to the movable ring, and is used for applying force to the movable adjusting part so as to adjust the position of the movable ring on the shaft body, so that the mechanical sealing part can be adjusted to the position of the shaft body through the movable adjusting part, and the error of the working position of the mechanical sealing part can be eliminated, and the sealing performance of the mechanical sealing part can be ensured.
Drawings
FIG. 1 is a schematic perspective view of a mechanical seal structure according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a mechanical seal in a front view in accordance with an embodiment of the present utility model;
fig. 3 is a schematic cross-sectional view of a mechanical seal in an embodiment of the utility model.
The index marks in the drawings are as follows:
a mechanical seal 100; a shaft body 10; a step surface 11; a mechanical seal 20; a movable adjustment member 30; an elastic force application member 40; a stationary ring 21; a movable ring 22; an everting portion 221; a stopper 23; a limit groove 231; a return spring 24; a spacer 50.
Detailed Description
In order to make the technical means, creation characteristics, achievement of the purposes and effects of the present utility model easy to understand, the mechanical seal structure and the motor of the present utility model are specifically described below with reference to the embodiments and the accompanying drawings.
The embodiment provides a mechanical seal structure and a motor, which can eliminate errors of working positions of mechanical seals after installation, so that sealing performance of the mechanical seals is guaranteed.
FIG. 1 is a schematic perspective view of a mechanical seal structure according to an embodiment of the present utility model; fig. 2 is a schematic front view of a mechanical seal structure according to an embodiment of the present utility model.
As shown in fig. 1 to 2, the motor of the present embodiment includes a mechanical seal structure 100, and the mechanical seal structure 100 includes a shaft body 10, a mechanical seal member 20, a movable adjustment member 30, and an elastic force application member 40. The mechanical seal 20 includes a stationary ring 21 fixedly fitted over the shaft body 10 and a movable ring 22 slidably fitted over the shaft body 10. The movable adjusting member 30 is movably sleeved on the shaft body 10 and indirectly or directly abuts against one end of the movable ring 22, which is opposite to the stationary ring 21. The elastic force application member 40 is disposed on the shaft body 10 and located on a side of the movable adjustment member 30 facing away from the movable ring 22, and is used for applying force to the movable adjustment member 30 to adjust the position of the movable ring 22 on the shaft body 10, so as to maintain the mechanical seal 20 in the working position.
It can be appreciated that the elastic force application member 40 can apply force to the moving ring 22 through the movable adjustment member 30 after the mechanical seal 20 is installed, so as to adjust the position of the moving ring 22 on the shaft body 10, thereby maintaining the mechanical seal 20 in the working position through the adjustment of the elastic force application member 40, eliminating errors of the working position after the mechanical seal 20 is installed, and further ensuring the sealing performance of the mechanical seal 20.
In this embodiment, the movable adjustment member 30 is a bearing.
Fig. 3 is a schematic cross-sectional view of a mechanical seal in an embodiment of the utility model.
As shown in fig. 3, the mechanical seal 20 further includes a stopper 23 and a return spring 24. The limiting piece 23 is sleeved on the shaft body 10 and is positioned between the movable adjusting piece 30 and the movable ring 22. The stopper 23 is provided with a stopper groove 231 opened toward one end of the movable ring 22. The return spring 24 is sleeved on the shaft body 10 and is positioned between the limiting piece 23 and the movable ring 22, one end of the return spring extends into the limiting groove 231 and is abutted against the groove bottom of the limiting groove 231, and the other end of the return spring is indirectly or directly abutted against the movable ring 22. The movable ring 22 is abutted against the stationary ring 21 by the return spring 24. The limiting member 23 is indirectly or directly abutted against the movable adjusting member 30 under the action of the return spring 24.
It will be appreciated that the restoring force of the restoring spring 24 is applied to the moving ring 22, so as to realize the restoring action of the moving ring 22, and in addition, one end of the restoring spring 24 extends into the limiting groove 231, and the limiting piece 23 can circumferentially limit the restoring spring 24, so that the restoring spring 24 is stably maintained in the working position.
In this embodiment, the limiting member 23 has a circular housing structure, and an inner cavity of the housing forms the limiting groove 231.
As shown in fig. 3, an outward-extending everting portion 221 is provided at the outer wall of the movable ring 22, and one end of the return spring 24 abuts against the everting portion 221.
As will be appreciated, the force of the return spring 24 is applied to the moving ring 22 via the everting portion 221, thereby returning the moving ring 22.
In the present embodiment, the everting portion 221 is annular.
As shown in fig. 2, the elastic force application member 40 is a compression spring, one end of which abuts against the surface of the shaft body 10, and the other end abuts against the end surface of the movable adjustment member 30.
It will be appreciated that the compression spring is always in a compressed state and the compression spring is always exerting a force on the movable adjustment member 30, whereby the mechanical seal 20 is maintained in the working position by the compression spring adjustment.
As shown in fig. 2, the shaft body 10 is provided with a stepped surface 11, and one end of the elastic urging member 40 abuts against the stepped surface 11.
As can be appreciated, the blocking of one end of the elastic force application member 40 by the stepped surface 11 enables the elastic force application member 40 to apply force to the movable adjustment member 30.
As shown in fig. 3, the mechanical seal structure 100 further includes a gasket 50, which is sleeved on the shaft body 10 and is disposed between the movable adjusting member 30 and the limiting member 23 in a contact manner.
Effects and effects of the examples
According to the sealing structure and the motor related to the embodiment, the motor comprises a mechanical sealing structure, the mechanical sealing structure comprises a shaft body, a mechanical sealing part, a movable adjusting part and an elastic force application part, the mechanical sealing part comprises a stationary ring fixedly sleeved on the shaft body and a movable ring slidingly sleeved on the shaft body, the movable adjusting part is movably sleeved on the shaft body and indirectly or directly abuts against one end of the movable ring, which is opposite to the stationary ring, of the stationary ring, the elastic force application part is arranged on the shaft body and is positioned on one side of the movable adjusting part, which is opposite to the movable ring, and is used for applying force to the movable adjusting part so as to adjust the position of the movable ring on the shaft body, so that the mechanical sealing part can be applied with force through the movable adjusting part after the mechanical sealing part is installed, the mechanical sealing part can be kept at the working position through the adjustment of the elastic force application part, and errors of the working position of the mechanical sealing part can be eliminated, and the sealing performance of the mechanical sealing part can be ensured.
The above embodiments are only preferred embodiments of the technical solution, and do not limit the scope of protection of the technical solution accordingly, so: all equivalent changes according to the structure, shape and principle of the present technical scheme should be covered in the protection scope of the present technical scheme.
Claims (7)
1. A mechanical seal structure, comprising:
a shaft body (10);
the mechanical sealing piece (20) comprises a stationary ring (21) fixedly sleeved on the shaft body (10) and a movable ring (22) slidingly sleeved on the shaft body (10);
the movable adjusting piece (30) is movably sleeved on the shaft body (10) and indirectly or directly abuts against one end, opposite to the stationary ring (21), of the movable ring (22); and
and the elastic force application member (40) is arranged on the shaft body (10) and is positioned on one side of the movable adjustment member (30) facing away from the movable ring (22) and is used for applying force to the movable adjustment member (30) so as to adjust the position of the movable ring (22) on the shaft body (10), thereby keeping the mechanical seal (20) in the working position.
2. The mechanical seal of claim 1, wherein:
wherein the mechanical seal (20) further comprises:
the limiting piece (23) is sleeved on the shaft body (10) and is positioned between the movable adjusting piece (30) and the movable ring (22), and a limiting groove (231) with an opening at the end is formed in one end, facing the movable ring (22), of the limiting piece (23); and
a return spring (24) sleeved on the shaft body (10) and positioned between the limiting piece (23) and the movable ring (22), one end of the return spring extends into the limiting groove (231) and is abutted with the groove bottom of the limiting groove (231), the other end of the return spring is indirectly or directly abutted with the movable ring (22),
the movable ring (22) is abutted with the stationary ring (21) under the action of the return spring (24),
the limiting piece (23) is indirectly or directly abutted against the movable adjusting piece (30) under the action of the return spring (24).
3. The mechanical seal of claim 2, wherein:
the outer wall of the movable ring (22) is provided with an outward-extending everting part (221), and one end of the return spring (24) is abutted with the everting part (221).
4. A mechanical seal according to any one of claims 1 to 3, wherein:
the elastic force application member (40) is a compression spring, one end of the compression spring is abutted against the surface of the shaft body (10), and the other end of the compression spring is abutted against the end face of the movable adjustment member (30).
5. The mechanical seal of claim 4, wherein:
the shaft body (10) is provided with a step surface (11), and one end of the elastic force application member (40) is abutted against the step surface (11).
6. A mechanical seal according to any one of claims 2 to 3, further comprising:
the gasket (50) is sleeved on the shaft body (10) and is arranged between the movable adjusting piece (30) and the limiting piece (23) in a contact mode.
7. An electric machine comprising a mechanical seal according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321726835.6U CN220102062U (en) | 2023-07-03 | 2023-07-03 | Mechanical seal structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321726835.6U CN220102062U (en) | 2023-07-03 | 2023-07-03 | Mechanical seal structure and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220102062U true CN220102062U (en) | 2023-11-28 |
Family
ID=88847231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321726835.6U Active CN220102062U (en) | 2023-07-03 | 2023-07-03 | Mechanical seal structure and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220102062U (en) |
-
2023
- 2023-07-03 CN CN202321726835.6U patent/CN220102062U/en active Active
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