CN113983173A - Combined oil seal structure - Google Patents
Combined oil seal structure Download PDFInfo
- Publication number
- CN113983173A CN113983173A CN202111282081.5A CN202111282081A CN113983173A CN 113983173 A CN113983173 A CN 113983173A CN 202111282081 A CN202111282081 A CN 202111282081A CN 113983173 A CN113983173 A CN 113983173A
- Authority
- CN
- China
- Prior art keywords
- rubber
- sealing
- oil seal
- protective
- seal structure
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention provides a combined oil seal structure, and relates to the technical field of oil seals, wherein a sealing mechanism is arranged in a rubber body; the sealing mechanism comprises a supporting framework, the inside of the rubber body is of a cavity structure, and the bottom of the supporting framework is adhered to the inner surface wall of one side of the rubber body. According to the invention, when the oil seal is used, firstly, the sealing rubber is pressed by the restoring force generated by the deformation of the rubber ring, the sealing rubber can continuously press the output shaft to realize sealing work, meanwhile, the protecting rubber can be continuously pressed by the restoring force generated by the deformation of the stretching spring, so that the annular framework presses the sealing rubber, the sealing rubber is deformed, the sealing rubber is subjected to the ground pressure applied to the output shaft again, the integral use is realized, the deformation is generated by pressing the sealing rubber twice, and the sealing effect of the oil seal structure is greatly increased.
Description
Technical Field
The invention relates to the technical field of oil seals, in particular to a combined oil seal structure.
Background
The oil seal is a mechanical element for sealing oil, which isolates a part needing lubrication in a transmission part from a force-applying part so as not to allow the lubricating oil to leak, a static seal and a dynamic seal (generally reciprocating motion) are called sealing parts, the representative form of the oil seal is a TC oil seal, the TC oil seal is a double-lip oil seal with a self-tightening spring completely coated by rubber, and the general oil seal is usually referred to as the TC framework oil seal.
However, when the traditional oil seal is used, the framework oil seal mostly enables the oil seal body to be attached to the rotating shaft through the spring ring, after long-time use, due to the fact that the elastic force of the spring is easy to reduce, abrasion is prone to occurring, pressing force between the oil seal body and the rotating shaft is easy to reduce, and then leakage is prone to occurring at the sealing position of the framework oil seal and the rotating shaft.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, when a traditional oil seal is used, a framework oil seal is mostly attached to a rotating shaft through a spring ring, and after the traditional oil seal is used for a long time, due to the reasons that the elastic force of the spring is easy to reduce, the spring is easy to wear and the like, the pressing force between the oil seal and the rotating shaft is easy to reduce, and further the leakage is generated at the sealing position of the framework oil seal and the rotating shaft.
In order to achieve the purpose, the invention adopts the following technical scheme: a combined oil seal structure comprises a rubber body, wherein a sealing mechanism is arranged inside the rubber body;
sealing mechanism is including supporting the skeleton, the inside of the rubber body is the cavity structure, the bottom adhesion of supporting the skeleton is at the interior table wall of one side of the rubber body, the inside bottom surface of the rubber body is stained with sealing rubber, the annular groove has been seted up to sealing rubber's surface, and the inside of annular groove is provided with the spring ring, one side that the inside bottom surface of the rubber body is close to sealing rubber is stained with protective rubber, protective rubber's bottom adhesion is at protective rubber's top, protective rubber's inside is the cavity structure, and protective rubber's inside bottom surface is stained with annular skeleton, protective rubber's bottom is fixed with a plurality of extension spring.
Preferably, the bottom ends of the extension springs are fixed on the inner bottom surface of the rubber body.
Preferably, two rubber rings are adhered between the inner walls of the protective rubber.
Preferably, a rubber ring is adhered between the inner walls of the rubber bodies.
Preferably, the protective rubber is of an L-shaped structure.
Preferably, a plurality of annular grains are arranged between the inner walls of the rubber rings.
Compared with the prior art, the invention has the advantages and positive effects that,
according to the invention, when the oil seal is used, firstly, the sealing rubber is pressed by the restoring force generated by the deformation of the rubber ring, the sealing rubber can continuously press the output shaft to realize sealing work, meanwhile, the protecting rubber can be continuously pressed by the restoring force generated by the deformation of the stretching spring, so that the annular framework presses the sealing rubber, the sealing rubber is deformed, the sealing rubber is subjected to the ground pressure applied to the output shaft again, the integral use is realized, the deformation is generated by pressing the sealing rubber twice, and the sealing effect of the oil seal structure is greatly increased.
Drawings
FIG. 1 is a schematic perspective view of a combined oil seal structure according to the present invention;
FIG. 2 is a schematic view of an elevational cross-sectional three-dimensional structure of a combined oil seal structure according to the present invention;
FIG. 3 is an enlarged view of the area A in FIG. 2.
Illustration of the drawings: 1. a rubber body; 2. a sealing mechanism; 201. a support framework; 202. sealing rubber; 203. a spring ring; 204. a rubber ring; 205. a rubber ring; 206. protective rubber; 207. an annular skeleton; 208. a tension spring.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
The specific arrangement and function of the sealing mechanism 2 will be described in detail below.
As shown in fig. 1-3, the sealing mechanism 2 includes a supporting frame 201, the inside of the rubber body 1 is a cavity structure, the bottom of the supporting frame 201 is adhered to the inner surface wall of one side of the rubber body 1, the sealing rubber 202 is adhered to the inner bottom surface of the rubber body 1, the outer surface of the sealing rubber 202 is provided with an annular groove, and a spring ring 203 is arranged inside the annular groove, the protective rubber 206 is adhered to one side of the inner bottom surface of the rubber body 1 close to the sealing rubber 202, the bottom of the protective rubber 206 is adhered to the top of the protective rubber 206, the inside of the protective rubber 206 is a cavity structure, the annular frame 207 is adhered to the inner bottom surface of the protective rubber 206, the bottom of the protective rubber 206 is fixed with a plurality of tension springs 208, the bottom ends of the plurality of tension springs 208 are all fixed to the inner bottom surface of the rubber body 1, two rubber rings 204 are adhered between the inner walls of the protective rubber 206, a rubber ring 205 is arranged between the inner walls of the rubber body 1, the protective rubber 206 is of an L-shaped structure, and the rubber ring 205 is provided with a plurality of annular grains between the inner walls.
The whole sealing mechanism 2 has the effects that when the oil seal is used, firstly, the oil seal body is sleeved on an output shaft, when the oil seal body is sleeved, the output shaft can apply pressure to the sealing rubber 202, the sealing rubber 202 deforms under stress, further the sealing rubber 202 deforms, the sealing rubber 202 is applied with pressure through restoring force generated by the deformation of the rubber ring 204, the sealing rubber 202 can continuously apply pressure to the output shaft to realize sealing work, meanwhile, the stretching spring 208 can continuously apply pressure to the protective rubber 206 through restoring force generated by the deformation of the stretching spring 208, further, the annular framework 207 can be driven to apply pressure, the annular framework 207 moves downwards, when the annular framework 207 moves, the sealing rubber 202 is applied with pressure, the sealing rubber 202 deforms, the sealing rubber 202 is stressed once again to apply pressure to the output shaft, the whole sealing mechanism is used, and the sealing rubber 202 deforms under the action of applying pressure twice, thereby make oil blanket structure sealed effect greatly increased, through using rubber circle 204, rubber circle 204 can be when sealing rubber 202 contact output shaft, the synchronous contact output shaft, realize the many times sealing work to the output shaft, thereby increase oil sealing device's sealed effect once more, through using rubber ring 205, rubber ring 205 is trapezium structure, make the oil blanket at the during operation, through rubber ring 205 and output shaft contact, can avoid outside dust to enter into sealing rubber 202 inside to cause the damage to sealing rubber 202.
The working principle is as follows: at the oil blanket during operation, at first, exert pressure to sealing rubber 202 through the restoring force that rubber circle 204 self deformation produced, sealing rubber 202 can continuously exert pressure to the output shaft, realize sealing operation, at sealing rubber 202 during operation, can make rubber circle 204 can be when sealing rubber 202 contacts the output shaft, synchronous contact output shaft, realize the many times sealing operation to the output shaft, later through rubber ring 205 and output shaft contact, can avoid outside dust to enter into sealing rubber 202 inside and cause the damage to sealing rubber 202, at last through the restoring force that self deformation produced of extension spring 208, can continuously exert pressure to protection rubber 206, and then can drive annular skeleton 207 and exert pressure, exert pressure to sealing rubber 202, make sealing rubber 202 take place deformation, realize that sealing rubber 202 receives the ground force of exerting pressure to the output shaft once more.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (6)
1. The utility model provides a modular oil blanket structure, includes the rubber body, its characterized in that: a sealing mechanism is arranged inside the rubber body;
sealing mechanism is including supporting the skeleton, the inside of the rubber body is the cavity structure, the bottom adhesion of supporting the skeleton is at the interior table wall of one side of the rubber body, the inside bottom surface of the rubber body is stained with sealing rubber, the annular groove has been seted up to sealing rubber's surface, and the inside of annular groove is provided with the spring ring, one side that the inside bottom surface of the rubber body is close to sealing rubber is stained with protective rubber, protective rubber's bottom adhesion is at protective rubber's top, protective rubber's inside is the cavity structure, and protective rubber's inside bottom surface is stained with annular skeleton, protective rubber's bottom is fixed with a plurality of extension spring.
2. The combined oil seal structure according to claim 1, wherein: a plurality of the bottom ends of the extension springs are fixed on the bottom surface of the rubber body.
3. The combined oil seal structure according to claim 1, wherein: two rubber rings are adhered between the inner walls of the protective rubber.
4. The combined oil seal structure according to claim 1, wherein: and a rubber ring is adhered between the inner walls of the rubber bodies.
5. The combined oil seal structure according to claim 1, wherein: the protective rubber is of an L-shaped structure.
6. The combined oil seal structure according to claim 4, wherein: the rubber ring is provided with a plurality of annular grains between the inner walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282081.5A CN113983173A (en) | 2021-11-01 | 2021-11-01 | Combined oil seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282081.5A CN113983173A (en) | 2021-11-01 | 2021-11-01 | Combined oil seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113983173A true CN113983173A (en) | 2022-01-28 |
Family
ID=79745262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111282081.5A Pending CN113983173A (en) | 2021-11-01 | 2021-11-01 | Combined oil seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113983173A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4448426A (en) * | 1981-07-06 | 1984-05-15 | Chicago Rawhide Manufacturing Company | Unitized oil seals |
| KR20090094506A (en) * | 2008-03-03 | 2009-09-08 | 현대자동차주식회사 | Oil Seal |
| CN102537360A (en) * | 2012-01-20 | 2012-07-04 | 重庆杜克高压密封件有限公司 | Assembled half-exposed framework high-pressure seal ring |
| CN207762246U (en) * | 2017-12-04 | 2018-08-24 | 山东东都新材料科技有限公司 | A kind of dust-protection type oil sealing |
| CN210118455U (en) * | 2019-06-06 | 2020-02-28 | 烟台润蚨祥油封有限公司 | Combined oil seal structure |
| CN212744833U (en) * | 2020-07-29 | 2021-03-19 | 青岛润蚨祥密封技术有限公司 | Low-friction combined oil seal of single-cylinder shock absorber |
| CN213039817U (en) * | 2020-09-11 | 2021-04-23 | 浙江欧福密封件有限公司 | High-pressure oil seal |
| CN214331480U (en) * | 2021-02-05 | 2021-10-01 | 无锡市普发精密机械有限公司 | Framework oil seal structure |
-
2021
- 2021-11-01 CN CN202111282081.5A patent/CN113983173A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4448426A (en) * | 1981-07-06 | 1984-05-15 | Chicago Rawhide Manufacturing Company | Unitized oil seals |
| US4448426B1 (en) * | 1981-07-06 | 1997-09-23 | Skf Usa Inc | Unitized oil seals |
| KR20090094506A (en) * | 2008-03-03 | 2009-09-08 | 현대자동차주식회사 | Oil Seal |
| CN102537360A (en) * | 2012-01-20 | 2012-07-04 | 重庆杜克高压密封件有限公司 | Assembled half-exposed framework high-pressure seal ring |
| CN207762246U (en) * | 2017-12-04 | 2018-08-24 | 山东东都新材料科技有限公司 | A kind of dust-protection type oil sealing |
| CN210118455U (en) * | 2019-06-06 | 2020-02-28 | 烟台润蚨祥油封有限公司 | Combined oil seal structure |
| CN212744833U (en) * | 2020-07-29 | 2021-03-19 | 青岛润蚨祥密封技术有限公司 | Low-friction combined oil seal of single-cylinder shock absorber |
| CN213039817U (en) * | 2020-09-11 | 2021-04-23 | 浙江欧福密封件有限公司 | High-pressure oil seal |
| CN214331480U (en) * | 2021-02-05 | 2021-10-01 | 无锡市普发精密机械有限公司 | Framework oil seal structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES426922A1 (en) | Dynamic seal for double-acting piston | |
| CN210218296U (en) | Hydraulic cylinder sealing structure | |
| CN204201078U (en) | A kind of y-type seal ring | |
| CN201801346U (en) | Novel hydraulic jack | |
| CN113983173A (en) | Combined oil seal structure | |
| CN105545715A (en) | Marsh gas compressor good in leakproofness | |
| CN213540904U (en) | Combined sealing structure for hydraulic cylinder | |
| CN202418015U (en) | Balanced cartridge mechanical sealing device for vertical pump | |
| CN202484456U (en) | Sealing structure with movable joint displacing relatively | |
| CN2483560Y (en) | Pressure-compensation type radical sealing device | |
| CN201884362U (en) | No-leakage and constant performance wear compensation type hydraulic cylinder | |
| CN216768194U (en) | Oil seal for high-pressure-resistant shock absorber | |
| CN112664506B (en) | Hydraulic oil cylinder | |
| CN205278381U (en) | Rotation type multi -spring seal structure | |
| CN210566257U (en) | Novel shaft seal | |
| CN209026202U (en) | A kind of seal combination with arc baffle ring | |
| CN204664419U (en) | Air-pressure type sealing device | |
| CN208885853U (en) | A kind of novel elastic colloid equilibrium device | |
| CN101776147B (en) | Dynamic seal structure with automatic compensation function | |
| CN2451817Y (en) | Self-tightening endodynamic seal ring | |
| CN220286106U (en) | Top bending piston rod of bending roller cylinder | |
| CN217129974U (en) | Sealing dustproof structure for hydraulic cylinder | |
| CN213088753U (en) | Novel rotary oil seal with dust lip | |
| CN207880078U (en) | A kind of combination oil seal | |
| CN2451818Y (en) | Self-tightening ectodynamic sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |