CN205278374U - Can adapt to decentered skeleton oil blanket of pivot - Google Patents
Can adapt to decentered skeleton oil blanket of pivot Download PDFInfo
- Publication number
- CN205278374U CN205278374U CN201521048858.1U CN201521048858U CN205278374U CN 205278374 U CN205278374 U CN 205278374U CN 201521048858 U CN201521048858 U CN 201521048858U CN 205278374 U CN205278374 U CN 205278374U
- Authority
- CN
- China
- Prior art keywords
- waist
- lip
- thickness
- groove
- skeleton
- 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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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to a sealing element especially relates to the improvement of skeleton oil blanket. The utility model discloses can adapt to decentered skeleton oil blanket of pivot, including skeleton, waist and lip, the one end of waist with frame connection, the other end of waist with the lip is connected, the lip is installed and is enclosed the spring, the waist is equipped with the annular recess of circle along circumference, and the cross section of this recess is the arc, and the thickness of this recess bottom rubber body does 35~34 of waist thickness. It still can keep better sealed effect when the rotation axis is eccentric.
Description
Technical field
This utility model relates to potted component, particularly relates to the improvement of outside framework oil seal.
Background technology
Outside framework oil seal is because of its simple in construction, effect is notable, safeguard and change convenient and be widely used in machinery, chemical industry, etc. all trades and professions, existing outside framework oil seal includes skeleton, waist and lip, one end of waist is connected with skeleton, the other end of waist is connected with lip, lip is provided with and encloses spring, waist thickness everywhere is roughly equal, this outside framework oil seal can play good sealing function under normal circumstances, but when axle occurs that eccentric phenomena is beated for various reasons, lip and waist will be pulled and draw, owing to the thickness of waist is roughly equal, the followability causing waist is not as, both seal failure it had been susceptible to, the bending that frequency is higher can be produced again in the junction of waist and skeleton, cause that lumbar fatigue damages outside framework oil seal, the outside framework oil seal adapting to rotating shaft eccentric at present is still rare.
Utility model content
For prior art above shortcomings, the purpose of this utility model is to provide for a kind of outside framework oil seal adapting to rotating shaft bias, and it remains to when rotating shaft eccentric keep good sealing effectiveness.
In order to solve above-mentioned technical problem, this utility model solves the scheme of technical problem: adapt to the outside framework oil seal that rotating shaft is eccentric, including skeleton, waist and lip, one end of described waist is connected with described skeleton, the other end of described waist is connected with described lip, and described lip is provided with and encloses spring, and described waist is circumferentially arranged with the groove of annular, the cross section of this groove is arc, and the thickness of this bottom portion of groove rubber bodies is described waist thickness 3/5��3/4.
After adopting such scheme, owing to waist is circumferentially arranged with the groove of annular, the cross section of this groove is arc, and the thickness of this bottom portion of groove rubber bodies is the 3/5��3/4 of waist thickness, when rotating shaft eccentric beats the lip pullling outside framework oil seal, the elastic force of waist groove is substantially reduced, the followability of the followability making waist and the lip linked together with waist is obviously improved, improve the sealing effectiveness of outside framework oil seal preferably, and the cross section of groove is arc, namely seamlessly transit, even if producing high-frequency buckling to be also not easily tied, reduce the damage to outside framework oil seal, improve the service life of outside framework oil seal preferably.
The thickness of waist rubber bodies refers to the meansigma methods of waist rubber bodies thickness.
Skeleton is provided with dust ring, dust ring and waist and lays respectively at the both sides of skeleton.
Accompanying drawing illustrates:
Outside framework oil seal this utility model being adapted to rotating shaft eccentric below in conjunction with the drawings and specific embodiments is described in further detail.
Fig. 1 is the front view that this utility model adapts to the structural principle schematic diagram of the eccentric outside framework oil seal of rotating shaft.
Detailed description of the invention:
In Fig. 1, adapt to the outside framework oil seal that rotating shaft is eccentric, including skeleton 1, waist 3 and lip 5, one end of described waist 3 is connected with described skeleton 1, the other end of described waist 3 is connected with described lip 5, and described lip 5 is provided with and encloses spring 4, and described waist 3 is circumferentially arranged with the groove 2 of annular, the cross section of this groove 2 is arc, and bottom this groove 2, the thickness of rubber bodies is the 3/5��3/4 of described waist 3 thickness. owing to waist 3 is circumferentially arranged with the groove 2 of annular, the cross section of this groove 2 is arc, and the thickness of rubber bodies is the 3/5��3/4 of waist 3 thickness bottom this groove 2, when rotating shaft eccentric beats the lip 5 pullling outside framework oil seal, the waist 3 elastic force at groove 2 place is substantially reduced, the followability of the followability making waist 3 and the lip 5 linked together with waist 3 is obviously improved, improve the sealing effectiveness of outside framework oil seal preferably, and the cross section of groove 2 is arc, namely seamlessly transit, even if producing high-frequency buckling to be also not easily tied, reduce the damage to outside framework oil seal, improve the service life of outside framework oil seal preferably.
Claims (1)
1. adapt to the outside framework oil seal that rotating shaft is eccentric, including skeleton (1), waist (3) and lip (5), one end of described waist (3) is connected with described skeleton (1), the other end of described waist (3) is connected with described lip (5), described lip (5) is provided with and encloses spring (4), it is characterized in that: described waist (3) is circumferentially arranged with the groove (2) of annular, the cross section of this groove (2) is arc, and thickness is described waist (3) thickness the 3/5��3/4 of this groove (2) bottom rubber bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521048858.1U CN205278374U (en) | 2015-12-14 | 2015-12-14 | Can adapt to decentered skeleton oil blanket of pivot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521048858.1U CN205278374U (en) | 2015-12-14 | 2015-12-14 | Can adapt to decentered skeleton oil blanket of pivot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205278374U true CN205278374U (en) | 2016-06-01 |
Family
ID=56062952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521048858.1U Expired - Fee Related CN205278374U (en) | 2015-12-14 | 2015-12-14 | Can adapt to decentered skeleton oil blanket of pivot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205278374U (en) |
-
2015
- 2015-12-14 CN CN201521048858.1U patent/CN205278374U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20161214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |