CN201031809Y - Bellows mechanical seal member - Google Patents
Bellows mechanical seal member Download PDFInfo
- Publication number
- CN201031809Y CN201031809Y CNU2007201086556U CN200720108655U CN201031809Y CN 201031809 Y CN201031809 Y CN 201031809Y CN U2007201086556 U CNU2007201086556 U CN U2007201086556U CN 200720108655 U CN200720108655 U CN 200720108655U CN 201031809 Y CN201031809 Y CN 201031809Y
- Authority
- CN
- China
- Prior art keywords
- spring
- stationary ring
- rubber
- pump shaft
- pad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 abstract 3
- 239000000725 suspension Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model relates to the mechanical sealing member of a bellow in the mechanical sealing member field, which is designed to solve the compensation problem of the auxiliary sealing of the prior centrifugal pump. The sealing member includes a gasket, a spring, a stamping member, a rubber bellow, a rotating ring, a stationary ring, an L-shaped rubber pad, a stationary ring gland, a pump shaft and a pump body connected with the stationary ring gland. The sealing member is designed in that an L-shaped rubber pad that is arranged in the stationary ring gland, which is sleeved with the pump shaft, is equipped with the stationary ring inside. The rotating ring is arranged between the rubber bellow and the stationary ring. The rubber bellow used as a compensating seal and provided with a spring moves with the spring in the axial direction and the 'axle suspension' sealing part thereof which is arranged to coincide with the pump shaft is stationary relatively to the shaft. The sealing performance of the spring in the coincidence section is good. The spring is connected with the gasket at the other end, thereby overcoming the phenomenon of a sealing failure which is caused because the spring is not effectively compensated because of the axial movement influenced by the scaling and rusting of the pump shaft.
Description
Technical field
The utility model relates to the mechanical sealing element field, is applicable to the sealing of centrifugal pump.
Background technique
At present, bellows mechanical seal is widely used in the sealing that single stage centrifugal pump is carried various liquid, but bellows mechanical seal design fashion does not take into full account the compensation problem of centrifugal pump auxiliary seal.Especially the leakage that seals respectively between rotating ring and pump shaft and stationary ring and the seal end plate of rubber corrugated pipe, rubber L pad is still unresolved.And by spring transmission bellows mechanical seal often occur because of the pump shaft fouling, getting rusty influences axial displacement, spring can not get effective compensation, produces the phenomenon of seal failure, influences its working life.
Summary of the invention
The utility model will overcome above-mentioned deficiency, and purpose provides a kind of bellows mechanical seal, make it can solve the technical problem of seal failure.The purpose of this utility model is to adopt following technological scheme to realize.
A kind of bellows mechanical seal, sealing part comprise pad, spring, stamping part, rubber corrugated pipe, rotating ring, stationary ring, rubber L pad, seal end plate, pump shaft, the pump housing, and seal end plate connects with the pump housing.Its main points are in the seal end plate that is nested of pump shaft rubber L pad to be set, and in the rubber L pad stationary ring are set, and between stationary ring and the rubber corrugated pipe rotating ring are set.Rubber corrugated pipe is provided with spring as auxiliary seal in the rubber corrugated pipe, it is along with spring is done axial displacement, and " seize " hermetic unit wherein axle relatively is static." seize " hermetic unit coincide with pump shaft and is provided with, and the spring sealed functional of section coincide; The other end at spring connects pad.
By above-mentioned technological scheme, overcome because of the pump shaft fouling, getting rusty influences axial displacement, spring can not get effective compensation, produces the phenomenon of seal failure; Solved the technical problem of seal failure.
Description of drawings
Fig. 1 is the utility model structural representation.
Sequence number and title among the figure: 1, pad, 2, spring, 3, stamping part, 4, rubber corrugated pipe, 5, rotating ring, 6, stationary ring, 7, rubber L pad, 8, seal end plate, 9, pump shaft, 10 pump housings.
Embodiment
Mode of execution is installed as example with the utility model.The pad 1, spring 2, stamping part 3, rubber corrugated pipe 4, rotating ring 5, stationary ring 6, the rubber L pad 7 that assemble are inserted in pump shaft 9, and seal end plate 8 connects (bolt that is connected is not drawn) with the pump housing 10.Pad, spring, stamping part, rotating ring, stationary ring, rubber L pad rotate with the rotation of pump shaft 9, and rotating ring also plays the effect of compensation sealing in the rotation." seize " hermetic unit in the pump shaft is static relatively, and just rubber L cushion cover is gone into pump shaft has one section to be the section of coincideing, spring sealed functional for making this section, and the rubber corrugated pipe of this section is static with axle relatively, only does axial displacement.Bellows mechanical seal is improved working life like this.
Claims (1)
1. bellows mechanical seal, the sealing part comprises pad (1), spring (2), stamping part (3), rubber corrugated pipe (4), rotating ring (5), stationary ring (6), rubber L pad (7), seal end plate (8), pump shaft (9), the pump housing (10), seal end plate connects with the pump housing, it is characterized in that in the seal end plate (8) that pump shaft (9) is nested rubber L pad (7) being set, stationary ring (6) is set in the rubber L pad (7), rotating ring (5) is set between stationary ring and the rubber corrugated pipe (4), be provided with spring (2) in the rubber corrugated pipe (4), rubber corrugated pipe is done axial displacement with spring part is provided with pump shaft (9) is identical; The other end at spring connects pad (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201086556U CN201031809Y (en) | 2007-04-28 | 2007-04-28 | Bellows mechanical seal member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201086556U CN201031809Y (en) | 2007-04-28 | 2007-04-28 | Bellows mechanical seal member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031809Y true CN201031809Y (en) | 2008-03-05 |
Family
ID=39163701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201086556U Expired - Fee Related CN201031809Y (en) | 2007-04-28 | 2007-04-28 | Bellows mechanical seal member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031809Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518814A (en) * | 2011-12-30 | 2012-06-27 | 大连华阳光大密封有限公司 | A static bellows seal for narrow spaces |
| US8753079B2 (en) | 2009-03-16 | 2014-06-17 | Vulco S.A. | Mechanical seal |
-
2007
- 2007-04-28 CN CNU2007201086556U patent/CN201031809Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8753079B2 (en) | 2009-03-16 | 2014-06-17 | Vulco S.A. | Mechanical seal |
| US9206906B2 (en) | 2009-03-16 | 2015-12-08 | Vulco, S.A. | Adjustable mechanical seal |
| US9249885B2 (en) | 2009-03-16 | 2016-02-02 | Vulco, S. A. | Mechanical seal with improved seal assembly |
| US9593777B2 (en) | 2009-03-16 | 2017-03-14 | Vulco S.A. | Mechanical seal |
| CN102518814A (en) * | 2011-12-30 | 2012-06-27 | 大连华阳光大密封有限公司 | A static bellows seal for narrow spaces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 |