CN221328707U - Motor end cover sealing structure - Google Patents
Motor end cover sealing structure Download PDFInfo
- Publication number
- CN221328707U CN221328707U CN202322790601.4U CN202322790601U CN221328707U CN 221328707 U CN221328707 U CN 221328707U CN 202322790601 U CN202322790601 U CN 202322790601U CN 221328707 U CN221328707 U CN 221328707U
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- China
- Prior art keywords
- hole
- gland
- annular
- end cover
- sealing structure
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 31
- 210000004907 gland Anatomy 0.000 claims abstract description 29
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a motor end cover sealing structure, which comprises a cover body with a first through hole in the middle, wherein a gland is arranged on the outer end surface of the cover body, a second through hole communicated with the first through hole is arranged in the middle of the gland, a first annular cavity is formed in the inner wall of the gland, a rubber sleeve and a compression sleeve are respectively arranged from inside to outside of the first through hole, the inner diameter of the compression sleeve is sequentially increased towards the inner direction of the cover body, the outer diameter of the rubber sleeve is sequentially increased towards the inner direction of the cover body, a first annular extension part is formed at the end part of the compression sleeve, the first annular extension part is positioned in the first annular cavity, an adjusting screw is twisted outside the gland, and at least part of the adjusting screw is enabled to be in contact with the first annular extension part by twisting; the sealing structure solves the problems that the sealing structure in the prior art is easy to move out of the through hole in the middle of the end cover along with the rotation of the rotating shaft, and meanwhile, the sealing ring is difficult to insert due to smaller gap between the end cover and the rotating shaft when being replaced and installed.
Description
Technical Field
The utility model relates to the field of motors, in particular to a motor end cover sealing structure.
Background
The main shaft of motor passes the motor end cover and extends outside the organism, often is provided with the seal cover in the middle part through-hole of end cover, and the main shaft passes the seal cover to increase the sealing performance between lid and the main shaft, avoid foreign matter such as dust to get into. The Chinese patent with the patent number of CN201320577424.5 provides a labyrinth seal structure of a high-speed motor shaft, which comprises a labyrinth seal ring, a motor front end cover, a motor bearing and a motor rotor shaft, wherein the labyrinth seal ring is positioned on the motor front end cover, and the motor rotor shaft is connected with the motor front end cover through the motor bearing and penetrates through the labyrinth seal ring. Such as the above-mentioned prior art sealing structure, the sealing ring outside the end cap is easy to move out from the through hole in the middle of the end cap along with the rotation of the rotating shaft during operation, and at the same time, the sealing ring is difficult to insert due to the small gap between the end cap and the rotating shaft during replacement and installation.
Disclosure of utility model
The utility model aims to provide a sealing structure of an end cover of a motor, which solves the problems that a sealing ring outside the end cover is easy to move out of a through hole in the middle part of the end cover along with rotation of a rotating shaft during operation in the prior art, and meanwhile, the sealing ring is difficult to insert due to smaller gap between the end cover and the rotating shaft during replacement and installation.
In order to achieve the above object, the utility model provides a motor end cover sealing structure, which comprises a cover body with a first through hole in the middle, wherein a gland is arranged on the outer side end face of the cover body, a second through hole communicated with the first through hole is arranged in the middle of the gland, a first annular cavity is formed in the inner wall of the gland, a rubber sleeve and a compression sleeve are respectively arranged from inside to outside, the inner diameter of the compression sleeve is sequentially increased towards the inner direction of the cover body, the outer diameter of the rubber sleeve is sequentially increased towards the inner direction of the cover body, a first annular extension part is formed at the end part of the compression sleeve and is positioned in the first annular cavity, an adjusting screw is twisted on the outer part of the gland, and the adjusting screw is twisted to enable the adjusting screw to be at least partially abutted against the first annular extension part.
Preferably, a second annular cavity is formed in the inner wall of the second through hole in an inward recessed mode, a second annular extension portion is formed at the end portion of the rubber sleeve, and the second annular extension portion is clamped in the second annular cavity.
Preferably, the gland is fastened on the end face of the cover body through a locking screw.
Preferably, the number of the locking screws is not less than 3, and a plurality of groups of the locking screws are distributed at equal angles along the circumferential direction of the first through hole.
Preferably, the number of the adjusting screws is not less than 3, and the plurality of groups of the adjusting screws are distributed at equal angles along the circumferential direction of the first through hole.
Preferably, an annular groove is formed in the inner wall of the gland, and a sealing ring is arranged in the annular groove.
The beneficial effects are that: the utility model provides a motor end cover sealing structure, which comprises a cover body with a first through hole in the middle, wherein a gland is arranged on the outer side end surface of the cover body, a second through hole communicated with the first through hole is arranged in the middle of the gland, a first annular cavity is formed in the inner wall of the gland, a rubber sleeve and a compression sleeve are respectively arranged from inside to outside of the first through hole, the inner diameter of the compression sleeve is sequentially increased towards the inner direction of the cover body, the outer diameter of the rubber sleeve is sequentially increased towards the inner direction of the cover body, a first annular extension part is formed at the end part of the compression sleeve, the first annular extension part is positioned in the first annular cavity, and an adjusting screw is twisted outside the gland, so that the adjusting screw can be at least partially abutted against the first annular extension part; during installation, the rubber sleeve is inserted into the first through hole, the pressing sleeve is sleeved outside the rubber sleeve, the pressing cover is installed, the outer section of the rubber sleeve is of an inclined surface structure, the inner section of the pressing sleeve is of an inclined surface structure, the pressing sleeve pushes the first annular extension part and the pressing sleeve to displace through rotating the adjusting screw, and the pressing sleeve can be extruded along with the insertion of the pressing sleeve and is attached to the rotating shaft of the first through hole; the motor end cover sealing structure provided by the utility model not only ensures the sealing performance between the cover body and the rotating shaft, but also is convenient for the installation and the disassembly of the rubber sleeve, and meanwhile, the rubber sleeve is not shifted out in the motor operation process.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a block diagram of a motor end cap seal structure provided by the present utility model;
FIG. 2 is a first cross-sectional view of a motor end cap seal structure provided by the present utility model;
FIG. 3 is an enlarged view of portion A of FIG. 2;
Fig. 4 is a second cross-sectional view of the motor end cap seal structure provided by the present utility model.
Description of the reference numerals
1-A cover body; 2-capping; 3-locking the screw; 4-rubber sleeve; 5-a second annular extension; 6, compacting the sleeve; 7-a first annular extension; 8-adjusting screws; 9-sealing rings.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
As shown in fig. 1-4: the utility model provides a motor end cover sealing structure, which comprises a cover body 1 with a first through hole in the middle, wherein a gland 2 is arranged on the outer side end surface of the cover body 1, a second through hole communicated with the first through hole is arranged in the middle of the gland 2, a first annular cavity is formed in the inner wall of the gland 2, a rubber sleeve 4 and a compression sleeve 6 are respectively arranged from inside to outside of the first through hole, the inner diameter of the compression sleeve 6 is sequentially increased towards the inner direction of the cover body 1, the outer diameter of the rubber sleeve 4 is sequentially increased towards the inner direction of the cover body 1, a first annular extension 7 is formed at the end part of the compression sleeve 6, the first annular extension 7 is positioned in the first annular cavity, an adjusting screw 8 is twisted outside the gland 2, and the adjusting screw 8 is twisted to enable the adjusting screw 8 to be at least partially abutted against the first annular extension 7. During installation, the rubber sleeve is inserted into the first through hole, the pressing sleeve is sleeved outside the rubber sleeve, the pressing cover is installed, the outer section of the rubber sleeve is of an inclined surface structure, the inner section of the pressing sleeve is of an inclined surface structure, the pressing sleeve pushes the first annular extension part and the pressing sleeve to displace through rotating the adjusting screw, and the pressing sleeve can be extruded along with the insertion of the pressing sleeve and is attached to the rotating shaft of the first through hole; the motor end cover sealing structure provided by the utility model not only ensures the sealing performance between the cover body and the rotating shaft, but also is convenient for the installation and the disassembly of the rubber sleeve, and meanwhile, the rubber sleeve is not shifted out in the motor operation process.
In a preferred embodiment of the present utility model, in order to further fix the rubber sleeve, a second annular cavity is formed by recessing the inner wall of the second through hole, and a second annular extension 5 is formed at the end of the rubber sleeve 4, and the second annular extension 5 is engaged in the second annular cavity.
In a preferred embodiment of the present utility model, in order to facilitate the fixing and removal of the gland 2, the gland 2 is fastened to the end surface of the cover 1 by a locking screw 3.
In a preferred embodiment of the present utility model, in order to improve stability of gland fixation, the number of the locking screws 3 is not less than 3, and a plurality of groups of the locking screws 3 are equiangularly distributed along a circumferential direction of the first through hole.
In a preferred embodiment of the present utility model, in order to effectively fix the compression sleeve, the number of the adjusting screws 8 is not less than 3, and a plurality of groups of the adjusting screws 8 are equiangularly distributed along the circumferential direction of the first through hole.
In a preferred embodiment of the present utility model, in order to improve the sealing property between the gland and the surface of the cover, an annular groove is formed on the inner wall of the gland 2, and a sealing ring 9 is disposed in the annular groove.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (6)
1. The utility model provides a motor end cover seal structure, its characterized in that, motor end cover seal structure includes lid (1) that the middle part has first through-hole, the outside terminal surface of lid (1) is provided with gland (2), gland (2) middle part have with the second through-hole of first through-hole intercommunication, the inner wall of gland (2) is formed with first annular chamber, first through-hole is provided with rubber sleeve (4) and compression sleeve (6) from inside to outside respectively, the internal diameter of compression sleeve (6) increases in proper order towards lid (1) inside direction, the external diameter of rubber sleeve (4) increases in proper order towards lid (1) inside direction, the tip of compression sleeve (6) is formed with first annular extension (7), first annular extension (7) are located first annular intracavity, the outside of gland (2) is twisted and is had adjusting screw (8), twists reverse adjusting screw (8) can make it at least part and first annular extension (7) are inconsistent.
2. The motor end cover sealing structure according to claim 1, wherein a second annular cavity is formed by recessing the inner wall of the second through hole inwards, a second annular extension part (5) is formed at the end part of the rubber sleeve (4), and the second annular extension part (5) is clamped in the second annular cavity.
3. The motor end cover sealing structure according to claim 1, wherein the gland (2) is fastened to the end surface of the cover body (1) by a locking screw (3).
4. The motor end cover sealing structure according to claim 3, wherein the number of the locking screws (3) is not less than 3, and a plurality of groups of the locking screws (3) are equiangularly distributed along the circumferential direction of the first through hole.
5. A motor end cap sealing structure according to claim 3, wherein the number of the adjusting screws (8) is not less than 3, and a plurality of groups of the adjusting screws (8) are equiangularly distributed along the circumferential direction of the first through hole.
6. The motor end cover sealing structure according to claim 1, wherein an annular groove is formed in the inner wall of the gland (2), and a sealing ring (9) is arranged in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322790601.4U CN221328707U (en) | 2023-10-17 | 2023-10-17 | Motor end cover sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322790601.4U CN221328707U (en) | 2023-10-17 | 2023-10-17 | Motor end cover sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221328707U true CN221328707U (en) | 2024-07-12 |
Family
ID=91809152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322790601.4U Active CN221328707U (en) | 2023-10-17 | 2023-10-17 | Motor end cover sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221328707U (en) |
-
2023
- 2023-10-17 CN CN202322790601.4U patent/CN221328707U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |