CN103244688A - Mechanical sealing device for wide-range axial length elastic compensation - Google Patents
Mechanical sealing device for wide-range axial length elastic compensation Download PDFInfo
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- CN103244688A CN103244688A CN2012100261750A CN201210026175A CN103244688A CN 103244688 A CN103244688 A CN 103244688A CN 2012100261750 A CN2012100261750 A CN 2012100261750A CN 201210026175 A CN201210026175 A CN 201210026175A CN 103244688 A CN103244688 A CN 103244688A
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Abstract
The invention relates to a mechanical sealing device for wide-range axial length elastic compensation. The mechanical sealing device for the wide-range axial length elastic compensation comprises a spring seat, a transmission ring, a cylindrical spring, a metal bellow, a moving ring seat, a moving ring and a static ring, wherein the front end and the rear end of a needed sealing shaft are respectively provided with the spring seat and the transmission ring and the moving ring seat, the moving ring and the static ring; the metal bellow is connected between the transmission ring and the moving ring seat; the cylindrical spring is connected between the spring seat and the moving spring seat; the spring seat which is fixed on the sealing shaft is fixedly connected with a transmission ring shaft; and a first O-shaped sealing ring is placed between the spring seat and the transmission ring and the sealing shaft. The mechanical sealing device for the wide-range axial length elastic compensation has the advantages of achieving the wide-range axial length elastic compensation of mechanical seal due to wide-range length compensation and elastic performance of the large diameter cylindrical spring and auxiliary sealing performance and flexibility of the metal bellow, solving the problem that only small-sized axial movement can be performed in the mechanical seal and being flexible in axial movement, reliable in sealing performance, simple and contact in integral mechanical sealing structure and convenient to use and install.
Description
Technical field
The present invention 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 movement.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 present invention 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 achieving the above object, technological scheme of the present invention 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: before the required seal shaft, the rear end is equipped with spring seat respectively, transmission ring and rotating seat, rotating ring, stationary ring, be 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 be connected with the transmission ring axial restraint, be 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.Fixedly connected with screw axial between spring seat and the transmission ring.Spring seat is connected on the seal shaft by the Cock screw locking.
Beneficial effect of the present invention:
The present invention utilizes the cylinder with large diameter spring performance of length compensation and elastic force on a large scale, and 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 is simply compact, installation easy to use.
Description of drawings
Fig. 1 is structure sectional view of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, axial length of the present invention 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 required seal shaft front end mounting spring seat 2 and the 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.
Structural feature of the present invention:
(1) utilizes large diameter cylinder type spring 5 performance of length compensation and elastic force on a large scale, and 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 obtain by the design parameter of adjusting helical spring 5 and metal bellows 6 according to concrete usage requirement.
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: before the required seal shaft, the rear end is equipped with spring seat (2) respectively, transmission ring (4) and rotating seat (7), rotating ring (8), stationary ring (9), 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 be connected with transmission ring (4) axial restraint, be 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 elastic compensating mechanical seal device on a large scale, it is characterized in that: described 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 elastic compensating mechanical seal device on a large scale, it is characterized in that: described metal bellows (6) is integrally welded with transmission ring (4).
4. axial length according to claim 1 elastic compensating mechanical seal device on a large scale is characterized in that: be placed with second O-ring seals (10) on described stationary ring (9) cylindrical.
5. axial length according to claim 1 elastic compensating mechanical seal device on a large scale is characterized in that: be connected with screw (1) axial restraint between described spring seat (2) and the transmission ring (4).
6. axial length according to claim 1 elastic compensating mechanical seal device on a large scale, it is characterized in that: described spring seat (2) is connected on the seal shaft by Cock screw (11) locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210026175.0A CN103244688B (en) | 2012-02-07 | 2012-02-07 | Wide-range axial length elastic compensation mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210026175.0A CN103244688B (en) | 2012-02-07 | 2012-02-07 | Wide-range axial length elastic compensation mechanically-sealing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244688A true CN103244688A (en) | 2013-08-14 |
| CN103244688B CN103244688B (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210026175.0A Active CN103244688B (en) | 2012-02-07 | 2012-02-07 | Wide-range axial length elastic compensation mechanically-sealing apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN103244688B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840833A (en) * | 2016-05-13 | 2016-08-10 | 宁波精科机械密封件制造有限公司 | Short mechanical seal |
| CN110206884A (en) * | 2019-06-06 | 2019-09-06 | 密友集团有限公司 | The mechanically-sealing apparatus being axially movable |
| CN114053953A (en) * | 2021-11-29 | 2022-02-18 | 青岛伊克斯达智能装备有限公司 | External rotation type waste rubber-plastic thermal cracking equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1141049A (en) * | 1966-05-23 | 1969-01-22 | Burmah Oil Trading Ltd | Improvements in or relating to seals of the bellows type |
| CN2244648Y (en) * | 1996-02-14 | 1997-01-08 | 崔忠信 | Adjustable mechanical sealing device |
| CN2823610Y (en) * | 2005-07-12 | 2006-10-04 | 魏沛明 | Sealer for peripheral pump |
| CN201242009Y (en) * | 2008-07-14 | 2009-05-20 | 张家港市化工机械有限公司 | Oil way seal device in vacuum drying machine |
| CN201787068U (en) * | 2010-08-04 | 2011-04-06 | 安徽亚兰密封件有限公司 | Torsion-free mechanical sealing device |
| CN202451839U (en) * | 2012-02-07 | 2012-09-26 | 上海天示机械零部件制造有限公司 | Axial length large-range elastic compensation mechanical sealing device |
-
2012
- 2012-02-07 CN CN201210026175.0A patent/CN103244688B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1141049A (en) * | 1966-05-23 | 1969-01-22 | Burmah Oil Trading Ltd | Improvements in or relating to seals of the bellows type |
| CN2244648Y (en) * | 1996-02-14 | 1997-01-08 | 崔忠信 | Adjustable mechanical sealing device |
| CN2823610Y (en) * | 2005-07-12 | 2006-10-04 | 魏沛明 | Sealer for peripheral pump |
| CN201242009Y (en) * | 2008-07-14 | 2009-05-20 | 张家港市化工机械有限公司 | Oil way seal device in vacuum drying machine |
| CN201787068U (en) * | 2010-08-04 | 2011-04-06 | 安徽亚兰密封件有限公司 | Torsion-free mechanical sealing device |
| CN202451839U (en) * | 2012-02-07 | 2012-09-26 | 上海天示机械零部件制造有限公司 | Axial length large-range elastic compensation mechanical sealing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840833A (en) * | 2016-05-13 | 2016-08-10 | 宁波精科机械密封件制造有限公司 | Short mechanical seal |
| CN110206884A (en) * | 2019-06-06 | 2019-09-06 | 密友集团有限公司 | The mechanically-sealing apparatus being axially movable |
| CN114053953A (en) * | 2021-11-29 | 2022-02-18 | 青岛伊克斯达智能装备有限公司 | External rotation type waste rubber-plastic thermal cracking equipment |
| CN114053953B (en) * | 2021-11-29 | 2023-08-08 | 青岛伊克斯达智能装备有限公司 | External rotation type waste rubber and plastic thermal cracking equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103244688B (en) | 2016-08-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160601 Address after: Kang Hong Road 325016 Zhejiang province Wenzhou city Ouhai District Industrial Park No. 29 Xi Nan Qu Applicant after: Wenzhou Trisum Seal Manufacturing Co.,Ltd. Address before: 201611 Shanghai city Songjiang District South Road No. 238 Building 5 layer 7 Applicant before: Shanghai Tianshi Machinery Components and Parts Manufacturing Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |