CN204403383U - A kind of novel low friction rubber oil sealing - Google Patents
A kind of novel low friction rubber oil sealing Download PDFInfo
- Publication number
- CN204403383U CN204403383U CN201520021314.XU CN201520021314U CN204403383U CN 204403383 U CN204403383 U CN 204403383U CN 201520021314 U CN201520021314 U CN 201520021314U CN 204403383 U CN204403383 U CN 204403383U
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- spirality convex
- convex closure
- sealing
- low friction
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Abstract
A kind of novel low friction rubber oil sealing, belongs to rubber seal field.To solve the problem that existing spring-loaded oil seal in use exists leakage of oil.The internal conical surface of the sealing lip of low friction rubber oil sealing is sealing surface, and the internal conical surface of sealing lip is provided with many group spirality convex closures near outer end place, be provided with static seal boss in the spiral chute wherein formed between any two adjacent group spirality convex closures.The utility model is used in the production of automobile absorber oil sealing.
Description
Technical field
The utility model relates to a kind of low friction rubber oil sealing, belongs to rubber seal field.
Background technique
Domestic existing spring-loaded oil seal, because of the existence of sealing lip and running shaft interference, along with the High Rotation Speed of axle, the friction aggravation between lip and axle, and rubber is the poor conductor of heat, so the steep temperature rise of lip, ageing of rubber is fast, and working life reduces.Person, along with the High Rotation Speed of axle, the wearing and tearing aggravation between axle and lip, lip constantly makes up fricative gap, because spring is in extended state for a long time, so stress decay is fast by spring tension, when spring-return power can not make up fricative gap, oil sealing will leakage of oil.
Summary of the invention
The purpose of this utility model is to provide a kind of novel low friction rubber oil sealing, to solve the problem that existing spring-loaded oil seal in use exists leakage of oil.
The utility model solves the technological scheme that its technical problem adopts:
A kind of novel low friction rubber oil sealing, the internal conical surface of the sealing lip of described low friction rubber oil sealing is sealing surface, the internal conical surface of described sealing lip is provided with many group spirality convex closures near outer end place, be provided with static seal boss in the spiral chute wherein formed between any two adjacent group spirality convex closures.
The beneficial effects of the utility model are:
1. low friction rubber oil sealing of the present utility model, its sealing surface is softer, thus less to the wearing and tearing of axle, and axle can not carry out Surface hardened layer heat treatment, can reduce the requirement to axle surface quality.
2., because sealing area (internal conical surface of sealing lip is provided with to organize spirality convex closure near outer end place more) friction is violent, make lubricant oil at sealing area because friction high temperature causes the carbon distribution of generation minimum, and then sealing effect is best, longest-lived.
3. the eccentricity value of an axisymmetric degree that low friction rubber oil sealing pair matches with it and cylinder bore allows larger, so to the eccentricity value in axle and hole require lower.
4. a low friction rubber oil sealing pair allows larger inclination with its match degree of symmetry of sympodium and centrad of cylinder bore, so than primitive axis beat more wide in range.
5. allow axle to have larger deviation of beating, so the wearing and tearing of this class formation oil sealing are lower, the life-span is longer.
6. the utility model arranges the object organizing spirality convex closure more is can play balance pressure, reduce abrasion, produce pump suction effect, guarantee to form sealing film between axle and sealing lip, reach good sealing effect.
7. the utility model arranges the effect of static seal boss is to stop oil, and can prevent oil from flowing out.
To sum up, low friction rubber oil sealing of the present utility model have that structure is simple, with low cost, life-span and the superior feature of wear resistance.
Accompanying drawing explanation
Fig. 1 is the main sectional view of a kind of novel low friction rubber oil sealing of the present utility model;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is the left view of a kind of novel low friction rubber oil sealing of the present utility model;
Fig. 4 is the B-B place amplification view of Fig. 3.
Embodiment
As shown in Figure 1 to 4, a kind of novel low friction rubber oil sealing, described low friction rubber oil sealing is made up of oil tight skeleton 2 and the rubber body 1 that is coated on oil tight skeleton 2 surface, the internal conical surface of the sealing lip 6 of described low friction rubber oil sealing is sealing surface, the internal conical surface of described sealing lip 6 is provided with many group spirality convex closures 4 near outer end place, be provided with static seal boss 5 in the spiral chute wherein formed between any two adjacent group spirality convex closures 4.
Described rubber body 1 provides enough elasticity and sealing.
Described oil tight skeleton 2 pairs of oil seal bodies 1 play a supportive role.
Be further, as shown in FIG. 1 to 3, the group number of described spirality convex closure 4 is four groups, the one group of spirality convex closure 4 being positioned at outermost end in four groups of spirality convex closures 4 is set to first group of spirality convex closure 4-1, the one group of spirality convex closure 4 being positioned at innermost end in four groups of spirality convex closures 4 is set to the 4th group of spirality convex closure 4-4, the one group spirality convex closure 4 adjacent with first group of spirality convex closure 4-1 is set to second group of spirality convex closure 4-2, the one group spirality convex closure 4 adjacent with the 4th group of spirality convex closure 4-4 is set to the 3rd group of spirality convex closure 4-3, described static seal boss 5 is arranged in the spiral chute that formed between the 4th group of spirality convex closure 4-4 and the 3rd group spirality convex closure 4-3.
The effect of setting like this is: in spiral fluted passage, effectively can stop leakage of oil, prevents oil from leaking.
Further, as shown in Figure 1 and Figure 2, the described quantity often organizing spirality convex closure 4 is b, then b=(1 ~ 10) individual; Spacing often between group between adjacent two spirality convex closures is a, then a=(0.2 ~ 3) mm; The height of each spirality convex closure is c, then c=(0.01 ~ 0.5) mm.Balance pressure can be played, reduce abrasion, produce pump suction effect, guarantee to form sealing film between axle and sealing lip, reach good sealing effect.
Further, as shown in Figure 1 and Figure 2, the thickness of described sealing lip 6 is d, then d=(0.1 ~ 2.5) mm.
Further, as shown in Figure 1 and Figure 2, described sealing surface 3 is provided with fillet with each spirality convex closure intersection, and described fillet is f, then f=(0.1 ~ 1) mm.
Further, as shown in Figure 4, the width of described static seal boss 5 is i, then i=(0.01 ~ 1) mm; Static seal boss 5 is highly g, then g=(0.01 ~ 1) mm; One side of static seal boss 5 is inclined-plane, and the angle between the end face of static seal boss 5 and described inclined-plane is α, then α=5 ° ~ 30 °.
Claims (6)
1. a novel low friction rubber oil sealing, the internal conical surface of the sealing lip (6) of described low friction rubber oil sealing is sealing surface (7), it is characterized in that: the internal conical surface of described sealing lip (6) is provided with many groups spirality convex closure (4) near outer end place, be provided with static seal boss (5) in the spiral chute wherein formed between any two adjacent group spirality convex closures (4).
2. the novel low friction rubber oil sealing of one according to claim 1, it is characterized in that: the group number of described spirality convex closure (4) is four groups, the one group of spirality convex closure (4) being positioned at outermost end in four groups of spirality convex closures (4) is set to first group of spirality convex closure (4-1), the one group of spirality convex closure (4) being positioned at innermost end in four groups of spirality convex closures (4) is set to the 4th group of spirality convex closure (4-4), the one group spirality convex closure (4) adjacent with first group of spirality convex closure (4-1) is set to second group of spirality convex closure (4-2), the one group spirality convex closure (4) adjacent with the 4th group of spirality convex closure (4-4) is set to the 3rd group of spirality convex closure (4-3), described static seal boss (5) is arranged in the spiral chute that formed between the 4th group of spirality convex closure (4-4) and the 3rd group of spirality convex closure (4-3).
3. the novel low friction rubber oil sealing of one according to claim 1 and 2, is characterized in that: the quantity of described often group spirality convex closure (4) is b, then b=(1 ~ 10) individual; Spacing often in group between adjacent two spirality convex closures is a, then a=(0.2 ~ 3) mm; The height of each spirality convex closure is c, then c=(0.01 ~ 0.5) mm.
4. the novel low friction rubber oil sealing of one according to claim 1, is characterized in that: the thickness of described sealing lip (6) is d, then d=(0.1 ~ 2.5) mm.
5. the novel low friction rubber oil sealing of one according to claim 3, is characterized in that: described sealing surface (3) and each spirality convex closure intersection are provided with fillet, and described fillet is f, then f=(0.1 ~ 1) mm.
6. a kind of novel low friction rubber oil sealing according to claim 1, is characterized in that: the width of described static seal boss (5) is i, then i=(0.01 ~ 1) mm; Static seal boss (5) is highly g, then g=(0.01 ~ 1) mm; One side of static seal boss (5) is inclined-plane, and the angle between the end face of static seal boss (5) and described inclined-plane is α, then α=5 ° ~ 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520021314.XU CN204403383U (en) | 2015-01-13 | 2015-01-13 | A kind of novel low friction rubber oil sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520021314.XU CN204403383U (en) | 2015-01-13 | 2015-01-13 | A kind of novel low friction rubber oil sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403383U true CN204403383U (en) | 2015-06-17 |
Family
ID=53427243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520021314.XU Expired - Fee Related CN204403383U (en) | 2015-01-13 | 2015-01-13 | A kind of novel low friction rubber oil sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403383U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106391717A (en) * | 2016-11-30 | 2017-02-15 | 北京市城南橡塑技术研究所 | Rubber protection water seal for rolling mill supporting roll |
| CN106763789A (en) * | 2017-01-13 | 2017-05-31 | 东莞市瑞拓五金橡塑有限公司 | rubber sealed loop |
| CN108474479A (en) * | 2016-01-13 | 2018-08-31 | Nok株式会社 | Sealing device |
| CN111133237A (en) * | 2018-02-27 | 2020-05-08 | Nok株式会社 | Sealing structure |
-
2015
- 2015-01-13 CN CN201520021314.XU patent/CN204403383U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474479A (en) * | 2016-01-13 | 2018-08-31 | Nok株式会社 | Sealing device |
| CN106391717A (en) * | 2016-11-30 | 2017-02-15 | 北京市城南橡塑技术研究所 | Rubber protection water seal for rolling mill supporting roll |
| CN106763789A (en) * | 2017-01-13 | 2017-05-31 | 东莞市瑞拓五金橡塑有限公司 | rubber sealed loop |
| CN111133237A (en) * | 2018-02-27 | 2020-05-08 | Nok株式会社 | Sealing structure |
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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: 20150617 Termination date: 20200113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |