CN2323193Y - Double-spring and -wall type frame self-tightening oil seal - Google Patents
Double-spring and -wall type frame self-tightening oil seal Download PDFInfo
- Publication number
- CN2323193Y CN2323193Y CN97222132U CN97222132U CN2323193Y CN 2323193 Y CN2323193 Y CN 2323193Y CN 97222132 U CN97222132 U CN 97222132U CN 97222132 U CN97222132 U CN 97222132U CN 2323193 Y CN2323193 Y CN 2323193Y
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- China
- Prior art keywords
- groove
- tightening
- self
- spring
- oil seal
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- 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 belongs to the technical field of a bearing seal. The utility model is used for machines, such as automobiles, tractors, motorcycle, etc., which use fuel oil as dynamic force. The utility model is mainly characterized in that both side surfaces of a framework oil seal are respectively provided with an annular groove, the inner ring surfaces of the grooves are inserted with self tightening springs which perform a tightening function, and a working surface of the oil seal is composed of two groove-shaped working walls. The utility model has the advantages of good sealing effect, long service life, etc.
Description
The utility model belongs to the bearing seal technical field, relates in particular to a kind of skeleton oil sealing.
At present, be the skeleton oil sealing that adopts in the machinery of power with the fuel oil no matter at automobile, tractor, motorcycle etc., its feature is on an one side has the inner ring surface of annular groove and is embedded with a self-tightening spring.Because the single side face of this oil sealing is embedded with fastening spring, and its working surface is the work wall of knife-edge, during with the contacted bearing high speed rotating of work wall, because of unbalance stress is prone to swag phenomenon, this knife-edge work wall very easily weares and teares, and the easy spill and leakage of the oil that is sealed is come out.Therefore, it is poor that it exists sealing effect, the defective that working life is short.
The purpose of this utility model just provides a kind of skeleton oil sealing that does not increase the good sealing effect long service life of oil sealing thickness.
The purpose of this utility model is achieved in that a kind of skeleton two-man act double-walled self-tightening oil seal, in its side annular groove 1 is arranged, be embedded with an annular self-tightening spring 2 on the inner ring surface 3 of this groove, in the another side of oil sealing second annular groove 5 arranged, on the inner ring surface 7 of this groove, also be embedded with second annular self-tightening spring 6; The working surface 9 of oil sealing is the Baltimore groove ring-type.
Its additional technical feature is: the inner ring surface 3,7 of two annular grooves 1,5 all is the groove shape, and its groove depth h is not less than the diameter phi of described spring.
The oil sealing working surface 9 that is the Baltimore groove ring-type is made up of the work wall 4 of two projectioies.
Skeleton two-man act double-walled self-tightening oil seal provided by the utility model is compared with prior art; Have following advantage: 1, all there is annular groove the bi-side of oil sealing, and its inner ring surface all is embedded with the self-tightening spring, so under the situation that does not increase oil sealing thickness, improved its sealing effect; 2, the oil sealing working surface is the work wall composition of two projectioies of groove shaped, and it has not only played important function to the sealing effect that improves rotating shaft and oil sealing working surface, but also has prolonged the working life of oil sealing; 3, the depth of groove of annular groove inner ring surface is installed back self-tightening spring difficult drop-off greater than the self-tightening spring diameter.
Below in conjunction with accompanying drawing structure of the present utility model is further described in detail:
Accompanying drawing is a skeleton two-man act double-walled self-tightening oil seal section of structure.
As shown in the figure, open respectively at annular groove 1,5 in the bi-side of the oil sealing that has skeleton 8, the inner ring surface 3,7 of these two annular grooves is the groove shape, be embedded with the annular self-tightening spring 2,6 that plays the role of fastening, when oil sealing is installed for spring 2,6 is not come off, the depth of groove h of its inner ring surface 3,7 imbeds wherein spring integral body more than or equal to the diameter phi of spring.The working surface 9 of oil sealing is that the work wall 4 of two projectioies is formed, and forms the groove ring-type.When bearing in the working surface of the work wall that the biconvex of oil sealing rises during high speed rotating, under the snap action of two pass self-tightening spring, it is stressed evenly, swag phenomenon do not occur, and the work wall that biconvex plays played the double seal effect again, the wearing-in period between it and bearing is doubled again, therefore it is compared with the oil sealing of knife-edge work wall, under the situation that does not increase oil sealing thickness, improved sealing effect, prolonged working life again.
Claims (3)
1, a kind of skeleton two-man act double-walled self-tightening oil seal, in its side annular groove (1) is arranged, be embedded with an annular self-tightening spring (2) on the inner ring surface of this groove (3), it is characterized by: second annular groove (5) arranged in the another side of oil sealing, on the inner ring surface (7) of this groove, also be embedded with second annular self-tightening spring (6); The working surface of oil sealing (9) is the Baltimore groove ring-type.
2, skeleton two-man act double-walled self-tightening oil seal as claimed in claim 1 is characterized in that the inner ring surface (3,7) of described two annular grooves (1,5) all is the groove shape, and its groove depth (h) is not less than the diameter (φ) of described spring.
3, skeleton two-man act double-walled self-tightening oil seal as claimed in claim 1 is characterized in that the described oil sealing working surface (9) that is the Baltimore groove ring-type is made up of the work wall (4) of two projectioies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97222132U CN2323193Y (en) | 1997-07-26 | 1997-07-26 | Double-spring and -wall type frame self-tightening oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97222132U CN2323193Y (en) | 1997-07-26 | 1997-07-26 | Double-spring and -wall type frame self-tightening oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2323193Y true CN2323193Y (en) | 1999-06-09 |
Family
ID=33937278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97222132U Expired - Fee Related CN2323193Y (en) | 1997-07-26 | 1997-07-26 | Double-spring and -wall type frame self-tightening oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2323193Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539202B (en) * | 2008-03-20 | 2012-06-13 | 青岛开世密封工业有限公司 | Combined double-sided oil seal |
-
1997
- 1997-07-26 CN CN97222132U patent/CN2323193Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539202B (en) * | 2008-03-20 | 2012-06-13 | 青岛开世密封工业有限公司 | Combined double-sided oil seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |