CN212744833U - Low-friction combined oil seal of single-cylinder shock absorber - Google Patents
Low-friction combined oil seal of single-cylinder shock absorber Download PDFInfo
- Publication number
- CN212744833U CN212744833U CN202021532336.XU CN202021532336U CN212744833U CN 212744833 U CN212744833 U CN 212744833U CN 202021532336 U CN202021532336 U CN 202021532336U CN 212744833 U CN212744833 U CN 212744833U
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- China
- Prior art keywords
- rubber body
- oil seal
- lip
- shock absorber
- spring
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 20
- 230000035939 shock Effects 0.000 title claims abstract description 20
- 230000001050 lubricating effect Effects 0.000 claims abstract description 10
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 50
- 230000033001 locomotion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a low-friction combined oil seal of a single-tube shock absorber, which relates to the technical field of shock absorber sealing and comprises an outer oil seal and an inner oil seal, wherein the inner oil seal is fixedly arranged at the inner side of the outer oil seal, the outer oil seal comprises an outer framework and an outer rubber body, the outer framework is fixedly arranged in the outer rubber body, one side of the outer rubber body is provided with a dust lip, a main lip and a spring protection lip from top to bottom, the inner side of the outer rubber body is fixedly provided with a spring I, the inner oil seal comprises an inner framework and an inner rubber body, the inner rubber body is fixedly arranged at the inner side of the outer rubber body, the inner framework is fixedly arranged in the inner rubber body, an expansion component is arranged between the inner side of the outer rubber body and the outer side of the inner rubber body, and the inner rubber body is provided with an auxiliary lip, by providing the lubricating layer on the main lip and the sub lip, the friction coefficient can be reduced to reduce the friction force.
Description
Technical Field
The utility model relates to a sealed technical field of shock absorber, in particular to single-cylinder shock absorber low friction combination oil blanket.
Background
The oil seal is a common name of a sealing element, namely the sealing of lubricating oil, is a mechanical element for sealing grease, separates a part needing to be lubricated in a transmission part from a force-exerting part, so that the lubricating oil is prevented from leaking, a combined oil seal is formed by combining a plurality of oil seals in an interference fit manner, and the combined oil seal is widely applied to the sealing of a shock absorber due to multiple sealing properties.
In the single-cylinder shock absorber, the interference fit between the outer oil seal and the inner oil seal of the combined oil seal is easily damaged by the movement of the shaft, so that the sealing performance of the combined oil seal is damaged, the service life of the combined oil seal is shortened, meanwhile, the combined oil seal can ensure that the radial force of the combined oil seal is large enough in structural design in order to maintain the sealing performance, but the friction force between the combined oil seal and the shaft can be increased by the large radial force, and the combined oil seal is easily damaged under long-term abrasion.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low friction combination oil blanket of single-cylinder shock absorber to solve between the outer oil blanket of the combination oil blanket that proposes among the above-mentioned background art and the interior oil blanket interference fit by the great problem of frictional force between motion destruction simultaneous combination oil blanket and the axle.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a single section of thick bamboo shock absorber low friction combination oil blanket, includes outer oil blanket and interior oil blanket, interior oil blanket fixed mounting be in outer oil blanket is inboard, outer oil blanket includes outer skeleton and the outer rubber body, outer skeleton fixed mounting be in the outer rubber body, be provided with dustproof lip, main lip and spring lip protector from top to bottom on one side of the outer rubber body, the inboard fixed mounting of outer rubber body has spring one, interior oil blanket includes the inner frame and the interior rubber body, interior rubber body fixed mounting be in the outer rubber body is inboard, interior skeleton fixed mounting be in the interior rubber body, outer rubber body inboard with be provided with the expansion subassembly between the interior rubber body outside, be provided with vice lip on the interior rubber body.
Preferably, a lubricating layer is adhered to both the auxiliary lip and the main lip.
Preferably, the lubricating layer is made of polytetrafluoroethylene.
Preferably, the expansion assembly comprises a disc spring and an annular pressing block, two first annular grooves are formed in the inner side of the outer rubber body, two second annular grooves are formed in the outer side of the inner rubber body, the inner sides of the disc spring and the annular pressing block are respectively located in the two first annular grooves, and the outer sides of the disc spring and the annular pressing block are respectively located in the two second annular grooves.
Preferably, the section of the annular pressing block is in a T shape, and one end of the annular pressing block is located on the compressed side of the disc spring.
Preferably, the first spring is a compression spring ring, and the outer oil seal and the inner oil seal are in interference fit.
The utility model discloses a technological effect and advantage:
1. the utility model can extrude the inner oil seal to the outer oil seal by arranging the disk spring, increase the pressure between the outer oil seal and the inner oil seal, extrude the disk spring by the annular pressing block, overcome the restoring force of the disk spring, and meanwhile, the disk spring and the annular pressing block can be matched with the first annular groove and the second annular groove to play the role of connecting and fixing the inner oil seal and the outer oil seal, thereby keeping the interference fit between the inner oil seal and the outer oil seal;
2. this practicality can reduce coefficient of friction and reduce frictional force under the prerequisite that does not change radial force and does not change the leakproofness through set up the lubricant film on main lip and vice lip.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a single-side sectional view of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: 1. an outer oil seal; 2. an inner oil seal; 3. an outer skeleton; 4. an outer rubber body; 5. a dust lip; 6. a main lip; 7. protecting the spring lip; 8. a first spring; 9. an inner skeleton; 10. an inner rubber body; 11. an expansion assembly; 12. the minor lip; 13. a lubricating layer; 14. a disc spring; 15. an annular pressing block; 16. a first annular groove; 17. and a second annular groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a low-friction combined oil seal of a single-tube shock absorber as shown in figures 1-3, which comprises an outer oil seal 1 and an inner oil seal 2, wherein the inner oil seal 2 is fixedly arranged at the inner side of the outer oil seal 1, the outer oil seal 1 comprises an outer framework 3 and an outer rubber body 4, the outer framework 3 is fixedly arranged in the outer rubber body 4, one side of the outer rubber body 4 is provided with a dust lip 5, a main lip 6 and a spring protecting lip 7 from top to bottom, the inner side of the outer rubber body 4 is fixedly provided with a spring I8, the inner oil seal 2 comprises an inner framework 9 and an inner rubber body 10, the inner rubber body 10 is fixedly arranged at the inner side of the outer rubber body 4, the inner framework 9 is fixedly arranged in the inner rubber body 10, an expansion component 11 is arranged between the inner side of the outer rubber body 4 and the outer side of the inner rubber body 10, the inner rubber body 10 is provided with an auxiliary lip 12, the spring coil 8 is a, in the utility model discloses, outer skeleton 3 is used for supporting outer rubber body 4, keeps the certain rigidity of outer oil blanket 1, and in dustproof lip 5 was used for preventing that outside dust from entering into the shock absorber, main lip 6 and vice lip 12 were used for playing the sealed effect to fluid, spring 8 was used for keeping the tension of outer oil blanket 1, and expansion subassembly 11 is used for improving interior oil blanket 2 and outer oil blanket 1 between the complex steadiness.
As shown in fig. 2, the lubricating layer 13 is adhered to both the auxiliary lip 12 and the main lip 6, the lubricating layer 13 is made of polytetrafluoroethylene, the lubricating layer 13 is used for reducing the friction coefficient between the main lip 6 and the auxiliary lip 12 and the shaft, and the polytetrafluoroethylene is a material with a low friction coefficient and has heat resistance.
As shown in fig. 3, the expansion assembly 11 includes a disk spring 14 and an annular pressing block 15, two annular grooves one 16 are provided on the inner side of the outer rubber body 4, two annular grooves two 17 are provided on the outer side of the inner rubber body 10, the inner sides of the disk spring 14 and the annular pressing block 15 are respectively located in the two annular grooves one 16, the outer sides of the disk spring 14 and the annular pressing block 15 are respectively located in the two annular grooves two 17, the cross-sectional shape of the annular pressing block 15 is T-shaped, and one end of the annular pressing block 15 is located on one side of the compression of the disk spring 14, in the utility model, the disk spring 14 is plugged into the annular grooves one 16 and the annular grooves two 17 in the opened state, one side of the disk spring 14 is pressed by the annular pressing block 15, so that the disk spring 14 maintains a certain tension.
This practical theory of operation: use this in practice, will this practicality install at epaxial needs sealed department, outside main lip 6 and the 12 isolation fluid of vice lip and shock absorber this moment, in dustproof lip 5 was used for preventing external dust from getting into the shock absorber, the axle when the motion, with the inboard production friction of interior rubber body 10 and outer rubber body 4, the coefficient of friction between lubricating layer 13 reduction main lip 6 and vice lip 12 and the axle, belleville spring 14 makes interior rubber body 10 press to outer rubber body 4.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a single-cylinder shock absorber low friction combination oil blanket, includes outer oil blanket (1) and interior oil blanket (2), interior oil blanket (2) fixed mounting be in outer oil blanket (1) inboard, its characterized in that: outer oil blanket (1) is including outer skeleton (3) and the outer rubber body (4), outer skeleton (3) fixed mounting be in outer rubber body (4), be provided with dustproof lip (5), main lip (6) and spring protect lip (7) from top to bottom on one side of the outer rubber body (4), outer rubber body (4) inboard fixed mounting has spring (8), interior oil blanket (2) are including inner frame (9) and interior rubber body (10), interior rubber body (10) fixed mounting be in outer rubber body (4) inboard, inner frame (9) fixed mounting be in interior rubber body (10), outer rubber body (4) inboard with be provided with expansion subassembly (11) between the interior rubber body (10) outside, be provided with vice lip (12) on the interior rubber body (10).
2. The low-friction combination oil seal of the mono-tube shock absorber as claimed in claim 1, wherein: and lubricating layers (13) are adhered to the auxiliary lip (12) and the main lip (6).
3. The low-friction combination oil seal of the mono-tube shock absorber as claimed in claim 2, wherein: the lubricating layer (13) is made of polytetrafluoroethylene.
4. The low-friction combination oil seal of the mono-tube shock absorber as claimed in claim 1, wherein: expansion element (11) include belleville spring (14) and annular briquetting (15), two ring channels (16) have been seted up to outer rubber body (4) inboard, two ring channels (17) have been seted up in interior rubber body (10) outside, belleville spring (14) with the inboard of annular briquetting (15) is located two respectively in ring channel (16), belleville spring (14) with the outside of annular briquetting (15) is located two respectively in ring channel (17).
5. The low-friction combination oil seal of the mono-tube shock absorber as claimed in claim 4, wherein: the section of the annular pressing block (15) is T-shaped, and one end of the annular pressing block (15) is located on the compressed side of the disc spring (14).
6. The low-friction combination oil seal of the mono-tube shock absorber as claimed in claim 1, wherein: the first spring (8) is a compression spring ring, and the outer oil seal (1) and the inner oil seal (2) are in interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021532336.XU CN212744833U (en) | 2020-07-29 | 2020-07-29 | Low-friction combined oil seal of single-cylinder shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021532336.XU CN212744833U (en) | 2020-07-29 | 2020-07-29 | Low-friction combined oil seal of single-cylinder shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212744833U true CN212744833U (en) | 2021-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021532336.XU Active CN212744833U (en) | 2020-07-29 | 2020-07-29 | Low-friction combined oil seal of single-cylinder shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212744833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983173A (en) * | 2021-11-01 | 2022-01-28 | 盐城乔胜机动车配件有限公司 | Combined oil seal structure |
| CN114526306A (en) * | 2022-02-21 | 2022-05-24 | 山东克耐特油封有限公司 | Self-lubricating rubber and preparation process thereof |
-
2020
- 2020-07-29 CN CN202021532336.XU patent/CN212744833U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983173A (en) * | 2021-11-01 | 2022-01-28 | 盐城乔胜机动车配件有限公司 | Combined oil seal structure |
| CN114526306A (en) * | 2022-02-21 | 2022-05-24 | 山东克耐特油封有限公司 | Self-lubricating rubber and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 266000 No. 81, Shaohai Road, Hetao street, Chengyang District, Qingdao City, Shandong Province Patentee after: Qingdao Runfuxiang Sealing Technology Co.,Ltd. Address before: 266000 export processing zone supporting industrial zone, Hongdao Economic Zone, Qingdao City, Shandong Province Patentee before: Qingdao Runxiang Sealing Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |