CN202901291U - Threaded lip-structure oil seal - Google Patents
Threaded lip-structure oil seal Download PDFInfo
- Publication number
- CN202901291U CN202901291U CN2012206600000U CN201220660000U CN202901291U CN 202901291 U CN202901291 U CN 202901291U CN 2012206600000 U CN2012206600000 U CN 2012206600000U CN 201220660000 U CN201220660000 U CN 201220660000U CN 202901291 U CN202901291 U CN 202901291U
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- lip
- threaded
- rubber body
- screw thread
- oil
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Abstract
The utility model discloses a threaded lip-structure oil seal, which is composed of an annular rubber body and a skeleton, wherein the skeleton is put in the rubber body through vulcanization; the outer side wall of the annular rubber body is matched with the inner wall of a cavity in a sealing mode, and the inner side wall of the annular rubber body adopts a threaded lip structure with more than two teeth; and threaded lips are in interference fit with a working shaft, and the rotating structure of the threaded lips is opposite to the rotating direction of the working shaft. The traditional oil-seal lip structure is changed into a threaded multiple-lip structure, and a sealed contact part is added, so that the threaded lip-structure oil seal has the characteristics of high pressure resistance and high rotation speed resistance. The threaded lip structure can play an oil-return role and ensures the stability of the whole seal system. The oil seal does not have a spring structure, so that the production is safer and more convenient, and the production efficiency is effectively increased.
Description
Technical field
The utility model relates to a kind of lip structure oil sealing, especially a kind of screw thread lip structure oil sealing.
Background technique
The structure major part of oil sealing consists of (as shown in Figure 1) by spring, skeleton, three kinds of parts of rubber at present, spring is assembled to the oil sealing sealing lip, production process control is comparatively complicated, and behind the assembling spring, the internal diameter size of product is wayward, and the fluctuation of size is larger, causes the stability of sealability to be affected, use though can satisfy general sealing system, but still exist some hidden danger need to improve breakthrough; Also there is at present the structure of some oil sealings to save the structure (as shown in Figure 2) of the spring of packing into, but the sealability of using and acting under the service condition of the same race, effect can not show a candle to the oil sealing of assembling spring structure.
Summary of the invention
In order to solve above technical problem, it is a kind of without band spring structure lip that the purpose of this utility model is to provide, be converted to screw thread rotation structure lip by single lip structure, in the assurance sealability and in working life, have more high pressure resistant, anti-high-revolving function, filled up the blank of the inaccessible requirement of non-spring structure oil sealing, current two kinds of most widely used oil sealings have been combined into the new structure oil sealing that a kind of sealability is better, use is with better function.
The utility model, place the skeleton among the rubber body to form by the ring-shaped rubber body with by sulfuration, outer side wall and the cavity inner wall of described ring-shaped rubber body are sealed and matched, and the madial wall of described ring-shaped rubber body is screw thread lip structure, and screw thread lip and working shaft interference are fitted.
The utility model, described screw thread lip are the above screw thread lips of 2 teeth.
The utility model, the rotational structure of described screw thread lip is opposite with the sense of rotation of working shaft.
The utility model has following features: the first, two kinds of parts are passed through the vulcanization die sulfidization molding, but the structure without spring had both been saved production technology, product size stability be can guarantee again, so that the size fluctuation scope is less, risk and hidden danger that product exists reduced; Second, oil seal lip is designed to the thread type structure, change plural spiral seal lip into by a seal lip, the design quantity of seal lip is determined by the product total height, and the Hand of spiral of seal lip design must be opposite with the sense of rotation of axle, because worm structure itself has the backflow effect, in the situation of micro-seepage, can be effectively the oily drainage of seepage be back in the sealing system.
The utility model, its beneficial effect is: this screw thread lip structure oil sealing has many lip seals, seal lip size fluctuation scope is little, has backflow functionality, and guarantee stable sealability under energy high pressure, the high-revolving condition, simplify simultaneously production process, reduce production hidden danger, bring higher benefit.
Description of drawings
The existing schematic representation with the spring structure oil sealing of Fig. 1.The schematic representation of the existing non-spring structure oil sealing of Fig. 2.Fig. 3 structural representation of the present utility model.Fig. 4 the utility model assembly state diagram.
Among the figure, 1, skeleton 2, rubber body 3, spring 4, screw thread lip 5, oil sealing outer side wall 6, cavity 7, screw thread lip mouth oil seal 8, machine oil 9, working shaft.
Embodiment
With reference to Fig. 3, a kind of screw thread lip structure oil sealing, place the skeleton 1 among the rubber body to form by ring-shaped rubber body 2 with by sulfuration, the oil sealing outer side wall 5 of described ring-shaped rubber body 2 cooperates with cavity 6 inner wall sealings, the madial wall of described ring-shaped rubber body 2 is above screw thread lip 4 structures of 2 teeth, screw thread lip and working shaft 9 interference are fitted, and the rotational structure of described screw thread lip 4 is opposite with the sense of rotation of working shaft 9.
The utility model is made of two large main body framework 1 and ring-shaped rubber body 2, identical with the structure of traditional oil sealing, but without the band spring structure, carry out the sulfuration adhesion moulding by vulcanization die, and seal lip is designed to worm structure after the moulding, tooth peak radius, tooth distance and depth of threat in this worm structure are the key structures of this oil sealing.And the fitting surface of oil sealing outer side wall 5 and die cavity 6 can be plane structure, also can be Wave-shaped structural.
With reference to Fig. 4, this screw thread lip structure oil sealing is by after assembling, and die cavity 6 fitting surfaces, oil sealing outer side wall 5, working shaft 9, machine oil 8 are combined to form sealing system.Die cavity 6 fitting surfaces and oil sealing outer side wall 5 interference fit, screw thread lip 4 is fitted with working shaft 9 interference, during work, screw thread lip 4 rotational structures are opposite with the design of working shaft 9 sense of rotation, reach the backflow action effect, and many lips structure can seal more high pressure, more high-revolving operating conditions, guarantees that whole sealing system is stable to carry out.
Claims (3)
1. screw thread lip structure oil sealing, place the skeleton (1) among the rubber body to form by ring-shaped rubber body (2) with by sulfuration, the outer side wall (5) of described ring-shaped rubber body (2) cooperates with cavity (6) inner wall sealing, it is characterized in that: the madial wall of described ring-shaped rubber body (2) is screw thread lip (4) structure, and screw thread lip and working shaft (9) interference is fitted.
2. screw thread lip structure oil sealing according to claim 1 is characterized in that: described screw thread lip (4) is the above screw thread lips of 2 teeth.
3. screw thread lip structure oil sealing according to claim 1 and 2, it is characterized in that: the rotational structure of described screw thread lip (4) is opposite with the sense of rotation of working shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206600000U CN202901291U (en) | 2012-12-04 | 2012-12-04 | Threaded lip-structure oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206600000U CN202901291U (en) | 2012-12-04 | 2012-12-04 | Threaded lip-structure oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901291U true CN202901291U (en) | 2013-04-24 |
Family
ID=48121962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206600000U Expired - Lifetime CN202901291U (en) | 2012-12-04 | 2012-12-04 | Threaded lip-structure oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979912A (en) * | 2012-12-04 | 2013-03-20 | 揭阳市天诚密封件有限公司 | Threaded lip structural oil seal |
-
2012
- 2012-12-04 CN CN2012206600000U patent/CN202901291U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979912A (en) * | 2012-12-04 | 2013-03-20 | 揭阳市天诚密封件有限公司 | Threaded lip structural oil seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: To the north of Guangdong city of Jieyang province Jieyang 522000 industrial transfer Industrial Park Road, Chaoyang West Songtao Street Patentee after: GUANGDONG TIANCHENG SEALS CO.,LTD. Address before: East Rong Dong Industrial Zone 522000 Guangdong Fenglin District of Rongcheng city in Jieyang Province Patentee before: JIEYANG TIANCHENG SEAL COMPONENTS Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |