CN2821306Y - Adjustable external mounted corrugated pipe mechanical seal - Google Patents
Adjustable external mounted corrugated pipe mechanical seal Download PDFInfo
- Publication number
- CN2821306Y CN2821306Y CN 200520118516 CN200520118516U CN2821306Y CN 2821306 Y CN2821306 Y CN 2821306Y CN 200520118516 CN200520118516 CN 200520118516 CN 200520118516 U CN200520118516 U CN 200520118516U CN 2821306 Y CN2821306 Y CN 2821306Y
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- CN
- China
- Prior art keywords
- bellows
- pump
- mechanical seal
- pump shaft
- corrugated pipe
- 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
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a sealing device, more specifically a mechanical seal of an adjustable externally assembled corrugated pipe which is used for various gear pumps and multi-stage pumps and has better sealing effect. The utility model is sheathed on a pump shaft of a pump. The mechanical seal of an adjustable externally assembled corrugated pipe comprises a corrugated pipe which is annularly provided with a spring and is sheathed on the pump shaft, wherein the inner edge surface of the front end of the corrugated pipe is provided with an O-shaped ring of the sealing pump shaft to lead the mechanical seal of an adjustable externally assembled corrugated pipe to have the advantages of effective prevention of the phenomena of oil leakage and oil splashing, high voltage resistance, convenient installation and maintenance and the extension of the service life.
Description
Technical field
The utility model relates to a kind of seal arrangement, and a kind of better adjustable outer dress bellows mechanical seal of sealing effect that is used for various gear pumps, multistage pump particularly is provided.
Background technique
Gear pump or multistage pump in use have more existing oil leakage phenomenon, at present, domestic general employing rubber seal sealing, seal by graphite packing in addition, still, because gear pump or multistage pump in use rotate caused friction, be easy to make above-mentioned sealing material to damage, can find that thus above-mentioned seal arrangement exists working life short, easily reveal, shortcoming such as maintenance load is big; Thus, occurred a kind of device of mechanical seal on the market, but, made seal failure because its structural reason when pressure improves, is easy to produce the phenomenon of getting rid of oil, leakage of oil.
The model utility content
The utility model purpose be to provide a kind of sealing effect better, can effectively prevent leakage of oil, get rid of oily phenomenon, the bellows mechanical seal of high voltage bearing adjustable outer dress.
In order to achieve the above object, the utility model provides the bellows mechanical seal of a kind of adjustable outer dress, it is set on the pump shaft of pump, this adjustable outer dress bellows mechanical seal comprises bellows, be equipped with spring in this bellows, this bellows is set on the pump shaft, and wherein, the front end inner edge surface of described bellows is provided with the O type circle of sealing pump shaft.
The bellows mechanical seal of described adjustable outer dress includes setting sleeve, this setting sleeve is set on the pump shaft, and the outer edge surface of this setting sleeve is provided with open-work, is equipped with first locating stud in this open-work, offer porosely on the one end end face of this setting sleeve, be inserted with second locating stud in this hole;
The front-end face of this bellows is provided with positioning hole, this positioning hole and the second locating stud snap fit.
Be provided with the graphite rotating ring between described bellows and the pump, this graphite moving ring sleeve is located on the pump shaft, and this graphite rotating ring is embedded on the end face of bellows near an end of pump.
Described pump housing limit covers and also is arranged with carbide ring, and this carbide ring is arranged between graphite rotating ring and the pump.
Be provided with L type rubber cushion between described carbide ring and the pump, this L type rubber cushion is embedded in pump housing limit and covers, and this carbide ring is embedded in the L type rubber cushion.
Because the utility model has adopted the structure that is provided with O type circle and sets up graphite rotating ring and carbide ring before bellows, make this adjustable outer dress bellows mechanical seal have following beneficial effect:
1, prevents that effectively leakage of oil from getting rid of oily phenomenon;
2, high pressure resistant;
3, be easy for installation and maintenance;
4, long service life, no leakage of oil, the phenomenon of getting rid of oil.
Description of drawings
Fig. 1 is the utility model embodiment's an overall structure schematic representation.
Embodiment
For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, conjunction with figs. is described as follows now:
As shown in Figure 1, the bellows mechanical seal of a kind of adjustable outer dress, it is set on the pump shaft 2 of pump 1, this adjustable outer dress bellows mechanical seal comprises bellows 7, be provided with spring 8 in this bellows 7, to increase the specific pressure of rotating ring and stationary ring, bellows extends and dwindles with the size variation of pressure, played the effect of secondary pressurization, guaranteed can not leak in the friction mouth.This bellows 7 is set on the pump shaft 2, and wherein, the front end inner edge surface of described bellows 7 is provided with the O type circle 9 of sealing pump shaft.
The bellows mechanical seal of described adjustable outer dress includes setting sleeve 11, this setting sleeve 11 is set on the pump shaft 2, the outer edge surface of this setting sleeve 11 is provided with open-work 14, be equipped with first locating stud in this open-work 14, offer porosely 13 on the one end end face of this setting sleeve 11, be inserted with second locating stud 10 in this hole 13;
The front-end face of this bellows 7 is provided with positioning hole 12, this positioning hole 12 and second locating stud, 10 snap fit.
Be provided with graphite rotating ring 5 between described bellows 7 and the pump 1, this graphite rotating ring 5 is set on the pump shaft 2, and this graphite rotating ring 5 is embedded on the end face of bellows 7 near an end of pump, and pad is provided with sealing plain cushion 6 between graphite rotating ring 5 and bellows 7.
Also be arranged with carbide ring 4 on the described pump shaft 2, this carbide ring 4 is arranged between graphite rotating ring 5 and the pump 1.
And, being provided with L type rubber cushion 3 between described carbide ring 4 and the pump 1, this L type rubber cushion 3 is set on the pump shaft 2, and this L type rubber cushion 3 is embedded on the pump 1, and this carbide ring 4 is embedded in the L type rubber cushion 3 with the form of interference fit.
This adjustable outer dress bellows mechanical seal when mounted, at first L type rubber cushion 3 is set on the pump shaft 2, and L type rubber cushion 3 is embedded on the pump 1, then the form of carbide ring 4 with interference fit is embedded in the L type rubber cushion 3, sheathed then graphite rotating ring 5, bellows 7, and graphite rotating ring 5 is embedded in the bellows 7, last installing and locating cover 11, and the elasticity of regulating bellows 7 by first locating stud that wears in the open-work 14.
This adjustable outer dress bellows mechanical seal in use, 9 main seal actions of O type circle and the elasticity of regulating bellows, can effectively prevent to get rid of oil, oil leakage phenomenon, and has a high voltage bearing advantage, pump shaft 2 is in rotary course, carbide ring 4 remains static, and graphite rotating ring 5 rotates with bellows 7.
In sum, the utility model from application target, on the usefulness, viewpoint such as progressive and novelty sets forth, the practical improvement that it has, function enhancement and practical important document that novel Patent Law is emphasized have been accorded with, shown in the implementation and accompanying drawing that the utility model is above, be one of the utility model preferred embodiment, be not to limit to the utility model with this, be with, such as with approximate, identical person such as structure of the present utility model, device, feature, all should belong to of the present utility model founding within purpose and the claim.
Claims (5)
1, a kind of adjustable outer dress bellows mechanical seal, it is set on the pump shaft of pump, this adjustable outer dress bellows mechanical seal comprises bellows, be equipped with spring in this bellows, this bellows is set on the pump shaft, it is characterized in that: the front end inner edge surface of described bellows is provided with the O type circle of sealing pump shaft.
2, adjustable outer dress as claimed in claim 1 bellows mechanical seal, it is characterized in that: the bellows mechanical seal of described adjustable outer dress includes setting sleeve, this setting sleeve is set on the pump shaft, the outer edge surface of this setting sleeve is provided with open-work, be equipped with first locating stud in this open-work, offer porosely on the one end end face of this setting sleeve, be inserted with second locating stud in this hole;
The front-end face of this bellows is provided with positioning hole, this positioning hole and the second locating stud snap fit.
3, adjustable outer dress as claimed in claim 1 bellows mechanical seal, it is characterized in that: be provided with the graphite rotating ring between described bellows and the pump, this graphite moving ring sleeve is located on the pump shaft, and this graphite rotating ring is embedded on the end face of bellows near an end of pump.
4, adjustable outer dress as claimed in claim 1 bellows mechanical seal, it is characterized in that: described pump housing limit covers and also is arranged with carbide ring, and this carbide ring is arranged between graphite rotating ring and the pump.
5, adjustable outer dress as claimed in claim 1 bellows mechanical seal, it is characterized in that: be provided with L type rubber cushion between described carbide ring and the pump, this L type rubber cushion is set on the pump housing, and this L type rubber cushion is embedded on the pump, and this carbide ring is embedded in the L type rubber cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520118516 CN2821306Y (en) | 2005-09-07 | 2005-09-07 | Adjustable external mounted corrugated pipe mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520118516 CN2821306Y (en) | 2005-09-07 | 2005-09-07 | Adjustable external mounted corrugated pipe mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821306Y true CN2821306Y (en) | 2006-09-27 |
Family
ID=37017860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520118516 Expired - Fee Related CN2821306Y (en) | 2005-09-07 | 2005-09-07 | Adjustable external mounted corrugated pipe mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821306Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506176A (en) * | 2011-09-26 | 2012-06-20 | 黑龙江建龙钢铁有限公司 | Mechanical sealing device for water pump |
| CN103867725A (en) * | 2014-03-18 | 2014-06-18 | 刘明 | Elasticity flexible variable sealing assembly |
| CN109139918A (en) * | 2018-09-28 | 2019-01-04 | 安徽安密机械密封有限公司 | A kind of sealing of Double End spring mechanical and its installation method |
| CN109340377A (en) * | 2018-09-28 | 2019-02-15 | 安徽安密机械密封有限公司 | A kind of elastomer spring mechanical seal and its processing technology |
| CN109751238A (en) * | 2019-02-22 | 2019-05-14 | 郑州沃华机械有限公司 | A kind of smelt gear pump and its sealing structure |
| CN112763120A (en) * | 2020-12-31 | 2021-05-07 | 合肥通用机械研究院有限公司 | Mechanical seal elasticity online adjustment testing arrangement |
-
2005
- 2005-09-07 CN CN 200520118516 patent/CN2821306Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506176A (en) * | 2011-09-26 | 2012-06-20 | 黑龙江建龙钢铁有限公司 | Mechanical sealing device for water pump |
| CN103867725A (en) * | 2014-03-18 | 2014-06-18 | 刘明 | Elasticity flexible variable sealing assembly |
| CN103867725B (en) * | 2014-03-18 | 2016-03-09 | 山东太极龙塑胶科技有限公司 | Elastic force soft type variable black box |
| CN109139918A (en) * | 2018-09-28 | 2019-01-04 | 安徽安密机械密封有限公司 | A kind of sealing of Double End spring mechanical and its installation method |
| CN109340377A (en) * | 2018-09-28 | 2019-02-15 | 安徽安密机械密封有限公司 | A kind of elastomer spring mechanical seal and its processing technology |
| CN109751238A (en) * | 2019-02-22 | 2019-05-14 | 郑州沃华机械有限公司 | A kind of smelt gear pump and its sealing structure |
| CN109751238B (en) * | 2019-02-22 | 2024-03-08 | 郑州沃华机械有限公司 | Melt gear pump and sealing structure thereof |
| CN112763120A (en) * | 2020-12-31 | 2021-05-07 | 合肥通用机械研究院有限公司 | Mechanical seal elasticity online adjustment testing arrangement |
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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: 20060927 |