CN201487211U - Bearing combination oil seal - Google Patents
Bearing combination oil seal Download PDFInfo
- Publication number
- CN201487211U CN201487211U CN2009200297953U CN200920029795U CN201487211U CN 201487211 U CN201487211 U CN 201487211U CN 2009200297953 U CN2009200297953 U CN 2009200297953U CN 200920029795 U CN200920029795 U CN 200920029795U CN 201487211 U CN201487211 U CN 201487211U
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- CN
- China
- Prior art keywords
- oil seal
- sealing
- lip
- seal
- skeleton
- 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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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model belongs to a sealing element, in particular to an oil seal used for bearing sealing, and the oil seal overcomes the defects of the existing bearing oil seal such as bad sealing effect and short service life. The utility model provides a bearing combination oil seal comprising an outer oil seal and an inner oil seal, and the outer oil seal comprises an outer oil seal sealing lip and an outer oil seal framework, wherein the inner oil seal comprises an inner seal outer lip, an inner seal inner lip and an inner oil seal framework; the inner seal inner lip faces the side of a rotating shaft and forms interference fit with the rotating shaft, and the inner oil seal framework is positioned between the outer oil seal sealing lip and the rotating shaft; the outer oil seal sealing lip and the inner oil seal framework form interference fit; and the inner seal outer lip and the inside of the outer oil seal framework are contacted and form interference fit. The oil seal has good sealing effect, simple assembly and prolonged service life.
Description
Technical field
The utility model belongs to a kind of Sealing, especially a kind of oil sealing that is used for bearing seal.
Background technique
At present, the monomer Sealing is generally adopted in the sealing of bearing, and the lip of monomer Sealing adopts rubber material as seal, by the interference fit between skeleton and running shaft and the body oil sealing is installed in the seat hole of machine.This Sealing Performance of Oil Seal is relatively poor, the phenomenon of oil impregnate and leakage of oil occurs through regular meeting, and working life is shorter.
Summary of the invention
The purpose of this utility model be to overcome existing bearing oil sealing sealing weak effect and working life short defective, a kind of bearing combination oil seal has been proposed, its good sealing effect, assembling is simple, and has prolonged the working life of oil sealing.
The utility model is to adopt following technological scheme to realize: a kind of bearing combination oil seal, comprise outer oil seal and inner oil seal, described outer oil seal comprises outer oil seal sealing lip and outer oil seal skeleton, wherein, sealing outer lip in described inner oil seal comprises, interior sealing epipharynx and inner oil seal skeleton, the sealing epipharynx is towards running shaft one side wherein, and and be interference fit between the running shaft, the inner oil seal skeleton is between outer oil seal sealing lip and running shaft, be interference fit between outer oil seal sealing lip and the inner oil seal skeleton, described in the interior side contacts of sealing outer lip and outer oil seal skeleton and be interference fit.By above-mentioned interference fit, realized the assembling of inner oil seal and outer oil seal.The destruction that interior sealing outer lip can prevent the external oil sealing sealing lip of impurity in the medium oil prevents oil seal failure, has improved its working life.
In the utility model, described outer oil seal skeleton outer ring and inner oil seal skeleton outer ring all adopt half encapsulate promptly to expose skeletal structure.Expose by skeleton, improved the radiating effect of oil sealing, thereby prolonged its working life.
The outer oil seal sealing lip directly contacts with the outer rim of inner oil seal skeleton, forms sealing strip, has reduced the processing request of running shaft; Seal epipharynx in the end that inner oil seal cooperates with running shaft is provided with, strengthened the sealing effect of oil sealing, can remedy the manufacturing deficiency of running shaft.The oil sealing of this structure has been realized two way sealed, and its inside can seal thin oil, and the outside can seal big butter.
The beneficial effects of the utility model are: this oil seal structure is simple, and is easy to assembly, reduced the processing request to running shaft, and good sealing effect, long service life can reach two way sealed by this oil sealing in addition, the rarer machine oil of promptly inner envelope, the thicker lubricant oil of outside envelope.
Description of drawings
Fig. 1 is the structural representation that partly cuts open of the present utility model.
Embodiment
As shown in Figure 1, this oil sealing comprises outer oil seal 2 and inner oil seal 5, and outer oil seal 2 comprises outer seal lip 1 and outer oil seal skeleton 3, and half rubber-wrapping structure is adopted in the outer ring of outer oil seal skeleton 3.Inner oil seal 5 comprises sealing lip and inner oil seal skeleton 6, sealing outer lip 4 and interior sealing epipharynx 7 in described sealing lip comprises, and the outer ring of inner oil seal skeleton 6 directly contacts with running shaft.Be interference fit between the inner ring of interior sealing outer lip 4 and outer oil seal skeleton 3, this lip can stop the destruction of the external oil sealing sealing lip 1 of the impurity in the medium oil, has prevented the inefficacy of oil sealing.Sealing epipharynx 7 can strengthen sealing effect in the end that inner oil seal 5 cooperates with running shaft was provided with, and remedied the manufacturing deficiency of running shaft.Inner oil seal skeleton 6 is arranged in outer oil seal sealing lip 1 and the inner oil seal skeleton 6, and promptly outer oil seal sealing lip 1 directly contacts with inner oil seal skeleton 6, forms sealing strip, has reduced the processing request to running shaft.
In the utility model, inner oil seal skeleton 6 and outer oil seal skeleton 3 all can be made by stainless steel, have strengthened frame strength, and inside and outside in addition oil tight skeleton all exposes, and has improved radiating effect, has prolonged the working life of oil sealing.
Claims (2)
1. bearing combination oil seal, comprise outer oil seal and inner oil seal, described outer oil seal comprises outer oil seal sealing lip and outer oil seal skeleton, it is characterized in that: sealing outer lip, interior sealing epipharynx and inner oil seal skeleton in described inner oil seal comprises, the sealing epipharynx is towards running shaft one side wherein, and and be interference fit between the running shaft, the inner oil seal skeleton is between outer oil seal sealing lip and running shaft, be interference fit between outer oil seal sealing lip and the inner oil seal skeleton, described in the interior side contacts of sealing outer lip and outer oil seal skeleton and be interference fit.
2. bearing combination oil seal according to claim 1 is characterized in that: half rubber-wrapping structure is all adopted in described outer oil seal skeleton outer ring and inner oil seal skeleton outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200297953U CN201487211U (en) | 2009-07-17 | 2009-07-17 | Bearing combination oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200297953U CN201487211U (en) | 2009-07-17 | 2009-07-17 | Bearing combination oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487211U true CN201487211U (en) | 2010-05-26 |
Family
ID=42426090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200297953U Expired - Fee Related CN201487211U (en) | 2009-07-17 | 2009-07-17 | Bearing combination oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487211U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062214A (en) * | 2010-11-25 | 2011-05-18 | 青岛开世密封工业有限公司 | Spring-free split oil seal resisting muddy water and installation method thereof |
| CN104455455A (en) * | 2014-12-06 | 2015-03-25 | 无锡高卓流体设备有限公司 | Bearing sealing piece |
| CN112923059A (en) * | 2021-02-02 | 2021-06-08 | 重庆创鸿机电有限公司 | Combined sealing structure and automobile steering knuckle bearing sealing structure |
-
2009
- 2009-07-17 CN CN2009200297953U patent/CN201487211U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062214A (en) * | 2010-11-25 | 2011-05-18 | 青岛开世密封工业有限公司 | Spring-free split oil seal resisting muddy water and installation method thereof |
| CN104455455A (en) * | 2014-12-06 | 2015-03-25 | 无锡高卓流体设备有限公司 | Bearing sealing piece |
| CN112923059A (en) * | 2021-02-02 | 2021-06-08 | 重庆创鸿机电有限公司 | Combined sealing structure and automobile steering knuckle bearing sealing structure |
| CN112923059B (en) * | 2021-02-02 | 2023-10-27 | 重庆创鸿机电有限公司 | Combined sealing structure and automobile steering knuckle bearing sealing structure |
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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: 20100526 Termination date: 20120717 |