CN201093071Y - Stepwise backbone combination oil seal - Google Patents
Stepwise backbone combination oil seal Download PDFInfo
- Publication number
- CN201093071Y CN201093071Y CNU2007200272088U CN200720027208U CN201093071Y CN 201093071 Y CN201093071 Y CN 201093071Y CN U2007200272088 U CNU2007200272088 U CN U2007200272088U CN 200720027208 U CN200720027208 U CN 200720027208U CN 201093071 Y CN201093071 Y CN 201093071Y
- Authority
- CN
- China
- Prior art keywords
- oil seal
- sealing body
- seal
- inner sealing
- cascade
- 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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Abstract
The utility model relates to an oil seal, which particularly relates to a stepped frame combination oil seal. The utility model overcomes the shortcomings that the in the existing combination oil seal, modular dimension and weight which are used are bigger since the physical dimension of an inner sealing body is bigger, operation, processing and maintenance are more difficult, and the weigth of the inner sealing body is not easy to control. The utility model comprises an inner sealing body, wherein the outer side of the inner sealing body is fixedly provided with a stepped frame, interference fit is formed between one end of the stepped frame and the inner sealing body, and the other end and the inner surface of a base hole form interference fit. The oil seal has the advantages of excellent sealing effect and simple structure, which greatly reduces the size of the inner sealing body, and the oil seal is led to be easy to be processed, and the rate of finished products of the inner sealing body is higher, and meanwhile, production cost is lowered.
Description
Technical field
The utility model relates to a kind of oil sealing, the combination oil seal of specifically a kind of cascade skeleton and interior seal.
Background technique
In the prior art, the oil sealing that uses in the vehicle bridge of automobile is generally the monomer Sealing, and its interference is installed in the axle seat hole, and with the sealing of realization vehicle bridge, but sealing effect is not very desirable; Along with development of technology, the combined type oil sealing of seal and external sealed body on automotive axle, adopting more, its sealing effect is better, but also there is certain shortcoming: can interference install in the present hole in order to guarantee the combined type oil sealing, the size of seal is bigger in the combined type oil sealing, especially when the space of vehicle bridge sealed member structure is big, the size of required interior seal is bigger, this has just caused the physical dimension and the weight of the mould that seal uses during fabrication bigger, is not easy to operation and the processing and the maintenance of mould; Because the size of interior seal is bigger, therefore in process of production, quality of product is wayward simultaneously.
Summary of the invention
The utility model is to overcome above-mentioned defective of the prior art, a kind of oil seal structure that can reduce interior seal size in the combined type oil sealing has been proposed, its good sealing effect, simple in structure, reduced the size of interior seal greatly, make it easy to processing, and the yield rate of interior seal is higher, can reduces manufacture cost simultaneously.
The utility model is to adopt following technological scheme to realize: a kind of cascade skeleton combination oil seal, comprise interior seal, wherein at the arranged outside cascade skeleton of interior seal, one end of cascade skeleton and interior seal form interference fit, and the other end forms interference fit with the internal surface in seat hole.
In the utility model, described interior seal adopts corrugated cylindrical structure, and its dust excluder lips is the lengthening dust excluder lips; Described cascade skeleton outer surface is encapsulate not.
The beneficial effects of the utility model are: (1) cascade skeleton has strengthened the rigidity of skeleton and not yielding; (2) the cascade skeleton adopts not encapsulate formula, has saved sizing material, has reduced the manufacture cost of oil sealing; (3) by adopting the external sealed body in the box-like oil sealing of cascade skeleton replacement traditional group, reduced the size of interior seal greatly, thereby reduced the interior seal physical dimension of employed mould during fabrication, make the weight saving of mould, be convenient to the processing and the maintenance of mould, the less Mould operation of volume makes things convenient for simultaneously, has reduced the processing cost of mould simultaneously; (4) because the physical dimension of interior seal is less, its quality of product is control easily in process of production, has improved yield rate greatly; (5) whole combination oil seal is in light weight, is convenient to good sealing effect is installed.
Description of drawings
Accompanying drawing 1 is a half sectional view of the present utility model;
Accompanying drawing 2 combined type oil sealings of the present utility model are provided with the structural representation in the present hole.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in FIG., the outer surface of cascade skeleton 1 does not coat sizing material, the outside of seal 5 in it is arranged on, and an end of cascade skeleton 1 and interior seal 5 form interference fit, and the other end forms interference fit with the internal surface in seat hole 6.Interior seal 5 adopts corrugated cylindrical structure, therefore is convenient to install.The dust excluder lips 3 of interior seal 5 is the lengthening dust excluder lips, so its dustproof effect is better, and the sealing lip 4 of interior seal 5 directly contacts with running shaft 8.In use, at first cascade skeleton 1 and interior seal 5 are assembled, behind the formation combination oil seal its interference is installed in present hole 6, can play seal action.
The utility model is mainly used on the bigger vehicle bridge sealed department bit architecture in space.
Claims (3)
1. a cascade skeleton combination oil seal comprises interior seal, it is characterized in that: fixedly install the cascade skeleton in the outside of interior seal, an end of cascade skeleton and interior seal form interference fit, and the other end forms interference fit with the internal surface in seat hole.
2. cascade skeleton combination oil seal according to claim 1 is characterized in that: seal adopts corrugated cylindrical structure in described.
3. cascade skeleton combination oil seal according to claim 1 is characterized in that: the dust excluder lips of seal is the lengthening dust excluder lips in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200272088U CN201093071Y (en) | 2007-08-27 | 2007-08-27 | Stepwise backbone combination oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200272088U CN201093071Y (en) | 2007-08-27 | 2007-08-27 | Stepwise backbone combination oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201093071Y true CN201093071Y (en) | 2008-07-30 |
Family
ID=39901038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200272088U Expired - Fee Related CN201093071Y (en) | 2007-08-27 | 2007-08-27 | Stepwise backbone combination oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201093071Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101802465B (en) * | 2007-09-14 | 2013-05-01 | 伊格尔工业股份有限公司 | Installation structure for lip type seal |
-
2007
- 2007-08-27 CN CNU2007200272088U patent/CN201093071Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101802465B (en) * | 2007-09-14 | 2013-05-01 | 伊格尔工业股份有限公司 | Installation structure for lip type seal |
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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: 20080730 Termination date: 20120827 |