CN202834077U - Oil seal combining three lips - Google Patents
Oil seal combining three lips Download PDFInfo
- Publication number
- CN202834077U CN202834077U CN2012204711189U CN201220471118U CN202834077U CN 202834077 U CN202834077 U CN 202834077U CN 2012204711189 U CN2012204711189 U CN 2012204711189U CN 201220471118 U CN201220471118 U CN 201220471118U CN 202834077 U CN202834077 U CN 202834077U
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- Prior art keywords
- oil seal
- sealing
- inner oil
- lip
- lips
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- Expired - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to a sealing element, in particular to an oil seal combining three lips. The oil seal comprises an outer oil seal and an inner oil seal, wherein the outer oil seal comprises an outer oil seal framework, an outer oil seal sealing lip and an outer oil seal spring, and the outer oil seal spring is arranged outside the outer oil seal sealing lip in a surrounding mode. The inner oil seal comprises an inner oil seal framework, inner oil seal sealing lips and inner oil seal springs, wherein the inner oil seal is in a double-lip structure, the number of the inner oil seal sealing lips is two, and one inner oil seal spring is arranged on the outer side of each inner oil seal sealing lip in the surrounding mode, the inner oil seal is arranged on the inner side of the outer oil seal framework, and the inner oil seal and the outer oil seal framework are in interference fit with each other. The oil seal combining the three lips can seal lubricating oil and cooling liquid simultaneously and separate the lubricating oil from the cooling liquid absolutely, and therefore double-medium sealing capacity of the oil seal is enhanced, the sealing performance of the oil seal is greatly improved, the service life of a transmission shaft of a water pump is prolonged, and the transmission shaft of the water pump is enabled to work normally in a working environment at a high rotating speed.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of three lip combination oil seals.
Background technique
The media of both sides at motorcycle water pump transmission shaft position is respectively lubricant oil and cooling liquid, and the combination oil seal of existing structure can't seal simultaneously to the media of both sides at water pump transmission shaft position at present.Therefore need to change the structure of the sealing lip of existing oil sealing, make oil sealing possess simultaneously the sealability of oil sealing and envelope cooling liquid, sealing when satisfying media of both sides guarantees that water pump transmission shaft works in the higher rotation speed working environment.
The model utility content
The purpose of this utility model is to have proposed a kind of three lip combination oil seals.
The utility model is to adopt following technological scheme to realize: a kind of three lip combination oil seals, comprise outer oil seal and inner oil seal, outer oil seal comprises the outer oil seal skeleton, outer oil seal sealing lip and outer oil seal spring, the outer most surrounding of outer oil seal sealing lip arranges the outer oil seal spring, inner oil seal comprises the inner oil seal skeleton, inner oil seal sealing lip and inner oil seal spring, wherein, described inner oil seal adopts the structure of double-lip, inner oil seal comprises two inner oil seal sealing lips, and the outside of two inner oil seal sealing lips is all around the inner oil seal spring is set, inner oil seal is arranged on the inboard of outer oil seal skeleton, is interference fit between inner oil seal and the outer oil seal skeleton.
In the utility model, the shape of the lip of two inner oil seal sealing lips can be identical, also can be not identical.
The beneficial effects of the utility model are: oil sealing of the present utility model adopts the combination of two special-shaped oil sealings, formation has the combination oil seal of multiple oil seal lip, inner oil seal adopts the double-lip grease seal structure with spring, the lubricant oil of sealing oil front cover side, prevent oil leak, the cooling liquid of outer oil seal hermetic oil seal opposite side, so this combination oil seal function while sealing lubricating oil and cooling liquid, fully with two kinds of liquid separately, the two medium abilities of sealing are strengthened, greatly improve the sealability of oil sealing, prolonged the working life of water pump transmission shaft, water pump transmission shaft is worked in the higher rotation speed working environment.
Description of drawings
Fig. 1 is the half sectional view of the utility model oil sealing.
Among the figure: 1 outer oil seal; 2 inner oil seals; 3 inner oil seal skeletons; 4 inner oil seal springs; 5 outer oil seal springs; 6 outer oil seal sealing lips; 7 inner oil seal sealing lips.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is oil sealing described in the utility model.This oil sealing comprises outer oil seal 1 and inner oil seal 2, outer oil seal 1 comprises outer oil seal skeleton, outer oil seal sealing lip 6 and outer oil seal spring 5, the outer most surrounding of outer oil seal sealing lip 6 arranges outer oil seal spring 5, outer oil seal spring 5 provides pretightening force for outer oil seal sealing lip 6, make outer oil seal sealing lip 6 play the effect of sealing cooling liquid, make cooling liquid not permeate lubricant oil one side.Inner oil seal 2 comprises inner oil seal skeleton 3, inner oil seal sealing lip 7 and inner oil seal spring 4, inner oil seal 2 adopts the structure of double-lip, inner oil seal 2 comprises two inner oil seal sealing lips 7, the lip shape of two inner oil seal sealing lips 7 is identical, and the outside of two inner oil seal sealing lips 7 is all around inner oil seal spring 4 is set, make two inner oil seal sealing lips 7 play the effect of sealing lubricating oil, make lubricant oil not be leaked to cooling liquid one side, the simultaneously double-lip of inner oil seal design can be played dual sealing functions, makes its sealing reliability stronger.Inner oil seal 2 is arranged on the inboard of outer oil seal skeleton, and is interference fit between inner oil seal 2 and the outer oil seal skeleton, thereby makes outer oil seal 1 and inner oil seal 2 make up in aggregates.This oil sealing can seal lubricant oil and the cooling liquid of its both sides simultaneously, has improved the sealability of oil sealing, and water pump transmission shaft can be worked in the higher rotation speed working environment.
Claims (2)
1. lip combination oil seal, comprise outer oil seal (1) and inner oil seal (2), outer oil seal (1) comprises the outer oil seal skeleton, outer oil seal sealing lip (6) and outer oil seal spring (5), the outer most surrounding of outer oil seal sealing lip (6) arranges outer oil seal spring (5), inner oil seal (2) comprises inner oil seal skeleton (3), inner oil seal sealing lip (7) and inner oil seal spring (4), it is characterized in that: described inner oil seal (2) adopts the structure of double-lip, inner oil seal (2) comprises two inner oil seal sealing lips (7), and the outside of two inner oil seal sealing lips (7) is all around inner oil seal spring (4) is set, inner oil seal (2) is arranged on the inboard of outer oil seal skeleton, is interference fit between inner oil seal (2) and the outer oil seal skeleton.
2. three lip combination oil seals according to claim 1, it is characterized in that: the shape of the lip of described two inner oil seal sealing lips (7) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204711189U CN202834077U (en) | 2012-09-14 | 2012-09-14 | Oil seal combining three lips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204711189U CN202834077U (en) | 2012-09-14 | 2012-09-14 | Oil seal combining three lips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834077U true CN202834077U (en) | 2013-03-27 |
Family
ID=47945786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204711189U Expired - Fee Related CN202834077U (en) | 2012-09-14 | 2012-09-14 | Oil seal combining three lips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834077U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481558A (en) * | 2015-08-27 | 2017-03-08 | 上海伊莱茨真空技术有限公司 | A kind of three lip oil sealing sealing systems for Roots vaccum pump |
| CN108150653A (en) * | 2017-12-25 | 2018-06-12 | 陈旭明 | A kind of five lip combination seals |
| CN112793203A (en) * | 2020-12-23 | 2021-05-14 | 重庆春阳密封制品有限公司 | One-step forming method of high-low pressure bidirectional high-strength oil seal |
-
2012
- 2012-09-14 CN CN2012204711189U patent/CN202834077U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481558A (en) * | 2015-08-27 | 2017-03-08 | 上海伊莱茨真空技术有限公司 | A kind of three lip oil sealing sealing systems for Roots vaccum pump |
| CN108150653A (en) * | 2017-12-25 | 2018-06-12 | 陈旭明 | A kind of five lip combination seals |
| CN112793203A (en) * | 2020-12-23 | 2021-05-14 | 重庆春阳密封制品有限公司 | One-step forming method of high-low pressure bidirectional high-strength oil seal |
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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: 20130327 Termination date: 20140914 |
|
| EXPY | Termination of patent right or utility model |