CN205278373U - Multiple seal skeleton oil blanket - Google Patents
Multiple seal skeleton oil blanket Download PDFInfo
- Publication number
- CN205278373U CN205278373U CN201521048856.2U CN201521048856U CN205278373U CN 205278373 U CN205278373 U CN 205278373U CN 201521048856 U CN201521048856 U CN 201521048856U CN 205278373 U CN205278373 U CN 205278373U
- Authority
- CN
- China
- Prior art keywords
- lip
- waist
- skeleton
- excluder lips
- dust excluder
- 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 multiple seal skeleton oil blanket, including the skeleton, one side of skeleton is connected with waist and lip, and the lip is installed and is enclosed the spring, and the opposite side of skeleton is connected with dust lip, and the cross section that constitutes two sides of lip is the curve of indent, is connected with the compensation waist of crooked shape between dust lip and the skeleton, should compensate waist smooth transition everywhere, and the thickness that just should compensate the waist is 35~34 of dust lip thickness. It has the characteristics that can too much not reduce sealed effect after the lip weares and teares and adapt to many dusts environment.
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, the side of skeleton is connected to waist and lip, lip is provided with and encloses spring, waist thickness everywhere is roughly equal, the opposite side of skeleton is connected to dust excluder lips, dust excluder lips thickness everywhere is roughly equal, and its end and axle gentle touchdown, enter for blocks dust, 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, will to lip, waist and dust excluder lips carry out pulling drawing, for waist and lip, owing to the thickness of waist is roughly equal, the followability causing waist is not as, both it is susceptible to deformation mistake circle and causes seal failure, 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, for dust excluder lips, owing to dust excluder lips thickness everywhere is roughly equal, the followability of dust excluder lips is not as, when axle pulls dust excluder lips, can cause that circle is lost in dust excluder lips deformation, and and axle between form bigger gap, this directly contributes dust and enters between lip and axle by gap and lip is caused heavy wear, makes the decline of the sealing effectiveness of outside framework oil seal and has a strong impact on the service life of outside framework oil seal. the outside framework oil seal that can well adapt to dust environment and 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 multi-sealed outside framework oil seal, and it will not too much reduce sealing effectiveness and adapt to the feature of many dust environment after having lip abrasion.
In order to solve above-mentioned technical problem, this utility model solves the scheme of technical problem: multi-sealed outside framework oil seal, including skeleton, the side of this skeleton is connected to waist and lip, this lip is provided with and encloses spring, the opposite side of skeleton is connected to dust excluder lips, constitute the curve that cross section is indent of two sides of described lip, the compensation waist of curved shape it is connected between described dust excluder lips and described skeleton, this compensation waist seamlessly transits everywhere, and the thickness of this compensation waist is described dust excluder lips thickness 3/5��3/4.
After adopting such scheme, for lip, owing to constituting the curve that cross section is indent of two sides of lip, lip is much smaller with the contact area of axle with after the identical height of lip abrasion of the contact area rate tradition outside framework oil seal of axle after wearing and tearing, this makes the footprint pressure between lip and axle too much to reduce, ensure that sealing effectiveness preferably, extend the working life of outside framework oil seal; For dust excluder lips, owing to being connected to the compensation waist of curved shape between dust excluder lips and skeleton, this compensation waist seamlessly transits everywhere, and the thickness of this compensation waist is described dust excluder lips thickness 3/5��3/4, thus the elastic force 1. compensating waist is substantially reduced, and be significantly less than that dust excluder lips deformation loses axle suffered by bowlder pull power; 2. the curved shape compensating waist is that each of dust excluder lips provides bigger nargin and possibility to radial displacement; 3. compensate waist to seamlessly transit everywhere, being also not easily tied even if producing high-frequency buckling, reducing the damage to dust excluder lips. So the followability that this utility model makes dust excluder lips is significantly improved, improves dust seal effect and the service life of dust excluder lips preferably, improve the comprehensive quality of outside framework oil seal preferably.
Corrosive gas and liquid that chemical industry is also likely produced by dust excluder lips have certain barrier effect.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the multi-sealed outside framework oil seal of this utility model is described in further detail.
Fig. 1 is the structural principle schematic diagram of the multi-sealed outside framework oil seal of this utility model.
Detailed description of the invention:
In Fig. 1, multi-sealed outside framework oil seal, including skeleton 3, the side of skeleton 3 is connected to waist 4 and lip 6, and lip 6 is provided with and encloses spring 5, and the opposite side of skeleton 3 is connected to dust excluder lips 1, constitute the curve that cross section is indent of two sides 7 of lip 6, being connected to the compensation waist 2 of curved shape between dust excluder lips 1 and skeleton 3, this compensation waist 2 seamlessly transits everywhere, and the thickness of this compensation waist 2 is described dust excluder lips 1 thickness 3/5��3/4. For lip 6, owing to constituting the curve that cross section is indent of two sides 7 of lip 6, lip is much smaller with the contact area of axle with after the identical height of lip abrasion of the contact area rate tradition outside framework oil seal of axle after wearing and tearing, this makes the footprint pressure between lip and axle too much to reduce, ensure that sealing effectiveness preferably, extend the working life of outside framework oil seal; For dust excluder lips 1, owing to being connected to the compensation waist 2 of curved shape between dust excluder lips 1 and skeleton 3, this compensation waist 2 seamlessly transits everywhere, and the thickness of this compensation waist 2 is described dust excluder lips 1 thickness 3/5��3/4, thus the elastic force 1. compensating waist 2 is substantially reduced, and it is significantly less than the power of pullling of dust excluder lips 1 deformation mistake axle suffered by bowlder; 2. the curved shape compensating waist 2 is that each of dust excluder lips 1 provides bigger nargin and possibility to radial displacement; 3. compensate waist 2 to seamlessly transit everywhere, being also not easily tied even if producing high-frequency buckling, reducing the damage to dust excluder lips 1. So the followability that this utility model makes dust excluder lips 1 is significantly improved, improves dust seal effect and the service life of dust excluder lips 1 preferably, improve the comprehensive quality of outside framework oil seal preferably.
Claims (1)
1. multi-sealed outside framework oil seal, including skeleton (3), the side of this skeleton (3) is connected to waist (4) and lip (6), this lip (6) is provided with and encloses spring (5), the opposite side of skeleton (3) is connected to dust excluder lips (1), it is characterized in that: constitute the curve that cross section is indent of two sides (7) of described lip (6), the compensation waist (2) of curved shape it is connected between described dust excluder lips (1) and described skeleton (3), this compensation waist (2) seamlessly transits everywhere, and the thickness of this compensation waist (2) is described dust excluder lips (1) thickness 3/5��3/4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521048856.2U CN205278373U (en) | 2015-12-14 | 2015-12-14 | Multiple seal skeleton oil blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521048856.2U CN205278373U (en) | 2015-12-14 | 2015-12-14 | Multiple seal skeleton oil blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205278373U true CN205278373U (en) | 2016-06-01 |
Family
ID=56062951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521048856.2U Expired - Fee Related CN205278373U (en) | 2015-12-14 | 2015-12-14 | Multiple seal skeleton oil blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205278373U (en) |
-
2015
- 2015-12-14 CN CN201521048856.2U patent/CN205278373U/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 |