CN202451839U - Axial length large-range elastic compensation mechanical sealing device - Google Patents
Axial length large-range elastic compensation mechanical sealing device Download PDFInfo
- Publication number
- CN202451839U CN202451839U CN2012200381669U CN201220038166U CN202451839U CN 202451839 U CN202451839 U CN 202451839U CN 2012200381669 U CN2012200381669 U CN 2012200381669U CN 201220038166 U CN201220038166 U CN 201220038166U CN 202451839 U CN202451839 U CN 202451839U
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- ring
- rings
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- axial length
- seats
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Abstract
The utility model relates to an axial length large-range elastic compensation mechanical sealing device, which comprises spring seats, transmission rings, cylindrical springs, metal corrugated pipes, movable ring seats, movable rings and stationary rings, wherein the front end and the rear end of a sealing shaft are respectively provided with the spring seats, the transmission rings, the movable ring seats, the movable rings and the stationary rings, the metal corrugated pipes are arranged between the transmission rings and the movable ring seats, the cylindrical springs are arranged between the spring seats and the movable ring seats, the spring seats are fixedly arranged on the sealing shaft and are fixedly connected with the movable rings in the axial direction, and first O-shaped sealing rings are respectively arranged between the spring seats and the transmission rings as well as between the spring seats and the sealing shaft. By utilizing the large-range length compensation and elasticity performance of a large-diameter cylindrical spring, the problem of the mechanical seal that only the axial movement in a small range is allowed is solved, the flexibility in axial movement can be realized, and the sealing performance is reliable; and the entire mechanical seal is simple and compact in structure and is convenient to use and install.
Description
Technical field
The utility model relates to a kind of mechanical seal structure, especially a kind of rotary dynamic seal structure that is applied to move axially conveying equipment for fluid substances.
Background technique
Mechanical seal is as the critical component of fluid machinery, and the conventional machinery sealing allows to move axially and is generally ± 0.5mm, maximum only ± 3mm about.
Because the applying working condition of fluid device, and equipment is because wearing and tearing, and producing larger axis is inevitable to moving.Therefore, exploitation is applicable to the reliability high mechanical-seal of axial elasticity compensation on a large scale, becomes the technical problem of being badly in need of solution.
Summary of the invention
The utility model is the technical problem that will solve the nose balance of fluid device rotary dynamic seal, and a kind of axial length elastic compensating mechanical seal device on a large scale is provided.
For realizing above-mentioned purpose; The technological scheme of the utility model is: a kind of axial length is the elastic compensating mechanical seal device on a large scale; Comprise spring seat, transmission ring, helical spring, metal bellows, rotating seat, rotating ring, stationary ring, be characterized in: required seal shaft front and back ends is equipped with spring seat, transmission ring and rotating seat, rotating ring, stationary ring respectively, is connected with metal bellows between transmission ring and the rotating seat; Be connected with helical spring between spring seat and the rotating seat; Spring seat is fixed on the seal shaft, and is connected with the transmission ring axial restraint, is placed with an O shape seal ring between spring seat and transmission ring and the seal shaft.
The rotating ring two ends are connected with stationary ring with rotating seat respectively, and integrally welded with rotating seat.Metal bellows and transmission ring are integrally welded.Be placed with second O-ring seals on the stationary ring cylindrical.Be fixedly connected with screw axial between spring seat and the transmission ring.Spring seat is connected on the seal shaft through the Cock screw locking.
The beneficial effect of the utility model:
The utility model utilizes the cylinder with large diameter spring performance of length compensation and elastic force on a large scale, and the auxiliary seal performance and the flexibility of metal bellows, realizes the elastic compensating of the axial length on a large scale of mechanical seal.Solved mechanical seal and only allowed the problem that moves axially of size more among a small circle, and moved axially flexibly, sealability is reliable; Whole mechanical seal structure compact, installation easy to use.
Description of drawings
Fig. 1 is the structure sectional view of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
As shown in Figure 1; The axial length of the utility model is the elastic compensating mechanical seal device on a large scale; Comprise screw 1, spring seat 2, the first, two O shape seal ring 3,10, transmission ring 4, helical spring 5, metal bellows 6, rotating seat 7, rotating ring 8, stationary ring 9, Cock screw 11 etc.
Be connected with screw 1 axial restraint between the required seal shaft front end mounting spring seat 2 and transmission ring 4, spring seat 2 and transmission ring 4.11 lockings of spring seat 2 usefulness Cock screws are connected on the seal shaft, and rotating seat 7, rotating ring 8 and stationary ring 9 are installed in the seal shaft rear end, and rotating ring 8 two ends are connected with stationary ring 9 with rotating seat 7 respectively, and integrally welded with rotating seat 7.
Be connected with metal bellows 6 between transmission ring 4 and the rotating seat 7, be connected with helical spring 5 between spring seat 2 and the rotating seat 7, be placed with an O shape seal ring 3 between spring seat 2 and transmission ring 4 and the seal shaft.Metal bellows 6 is integrally welded with transmission ring 4.Be placed with second O-ring seals 10 on stationary ring 9 cylindricals.
The structural feature of the utility model:
(1) utilizes large diameter cylinder type spring 5 performance of length compensation and elastic force on a large scale, and the auxiliary seal performance and the flexibility of metal bellows 6, realize the elastic compensating of the axial length on a large scale of mechanical seal.
(2) utilize the demountable structure of spring seat 2, realize the assembling of helical spring 5.Realize the spring precompression of mechanical seal, compact structure, easy for installation.
(3) this mechanical seal move axially compensating length, can be according to concrete usage requirement, the design parameter through adjustment helical spring 5 and metal bellows 6 obtains.
Claims (6)
1. axial length elastic compensating mechanical seal device on a large scale; Comprise spring seat (2), transmission ring (4), helical spring (5), metal bellows (6), rotating seat (7), rotating ring (8), stationary ring (9); It is characterized in that: required seal shaft front and back ends is equipped with spring seat (2), transmission ring (4) and rotating seat (7), rotating ring (8), stationary ring (9) respectively; Be connected with metal bellows (6) between transmission ring (4) and the rotating seat (7); Be connected with helical spring (5) between spring seat (2) and the rotating seat (7); Spring seat (2) is fixed on the seal shaft, and is connected with transmission ring (4) axial restraint, is placed with an O shape seal ring (3) between spring seat (2) and transmission ring (4) and the seal shaft.
2. axial length according to claim 1 is the elastic compensating mechanical seal device on a large scale, it is characterized in that: said rotating ring (8) two ends are connected with stationary ring (9) with rotating seat (7) respectively, and integrally welded with rotating seat (7).
3. axial length according to claim 1 is the elastic compensating mechanical seal device on a large scale, it is characterized in that: said metal bellows (6) is integrally welded with transmission ring (4).
4. axial length according to claim 1 is the elastic compensating mechanical seal device on a large scale, it is characterized in that: be placed with second O-ring seals (10) on said stationary ring (9) cylindrical.
5. axial length according to claim 1 is the elastic compensating mechanical seal device on a large scale, it is characterized in that: be connected with screw (1) axial restraint between said spring seat (2) and the transmission ring (4).
6. axial length according to claim 1 is the elastic compensating mechanical seal device on a large scale, it is characterized in that: said spring seat (2) is connected on the seal shaft through Cock screw (11) locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200381669U CN202451839U (en) | 2012-02-07 | 2012-02-07 | Axial length large-range elastic compensation mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200381669U CN202451839U (en) | 2012-02-07 | 2012-02-07 | Axial length large-range elastic compensation mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451839U true CN202451839U (en) | 2012-09-26 |
Family
ID=46867705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200381669U Expired - Fee Related CN202451839U (en) | 2012-02-07 | 2012-02-07 | Axial length large-range elastic compensation mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244688A (en) * | 2012-02-07 | 2013-08-14 | 上海天示机械零部件制造有限公司 | Mechanical sealing device for wide-range axial length elastic compensation |
-
2012
- 2012-02-07 CN CN2012200381669U patent/CN202451839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244688A (en) * | 2012-02-07 | 2013-08-14 | 上海天示机械零部件制造有限公司 | Mechanical sealing device for wide-range axial length elastic compensation |
| CN103244688B (en) * | 2012-02-07 | 2016-08-03 | 温州市天成密封件制造有限公司 | Wide-range axial length elastic compensation mechanically-sealing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150207 |
|
| EXPY | Termination of patent right or utility model |