CN103032473A - Combined sealing ring with high sealability and low torque - Google Patents
Combined sealing ring with high sealability and low torque Download PDFInfo
- Publication number
- CN103032473A CN103032473A CN2012105826396A CN201210582639A CN103032473A CN 103032473 A CN103032473 A CN 103032473A CN 2012105826396 A CN2012105826396 A CN 2012105826396A CN 201210582639 A CN201210582639 A CN 201210582639A CN 103032473 A CN103032473 A CN 103032473A
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- lip
- dust cover
- rubber
- side lip
- inwall
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Abstract
The invention relates to a combined sealing ring with high sealibility and a low rotary torque. The combined sealing ring consists of an inner framework, a rubber body and a dust cover, wherein the inner framework and the dust cover form a sealing cavity; the sealing rubber body is placed in the sealing cavity; the sealing rubber body comprises a rubber main body with the shape matched with the shape of the inner framework, and a main lip, an auxiliary lip and a double side lip structure that extend from the rubber main body; the auxiliary lip is in interference fit with an inner wall of the dust cover; the double side lip structure comprises a first side lip and a second side lip; and the first side lip and the second side lip are in interference fit with the inner wall of the dust cover. According to the combined sealing ring, as the double side lip structure is adopted based on the existing combined sealing ring, the radial magnitude of interference of the main lip is reduced, and friction between the sealing lips and the dust cover, and the rotary torque are reduced. According to inelastic FEM (Finite Element Method) analysis, the waist shapes of the side lips are scientifically designed, the rubber lips are automatically and elastically recovered and compensated after being abraded, and the sealibility is not reduced.
Description
Technical field
The present invention relates to a kind of low parts of turning round the bearing unit of high leak tightness that are applied to, be specifically related to the combined type packing ring of a kind of high sealing, low rotation torque.
Background technique
The development of automobile is more and more higher to the requirement that reduces energy consumption and anti-muddy water, and wheel hub uses ball and conical bearing unit as important rotation component, and the low rotation torque of self can directly reduce the energy consumption of automobile.Under the very large condition of vehicle Environmental Conditions difference (desert, rainforest, severe cold, heat etc.), it requires the seal ring of bearing not only to satisfy low moment of torsion but also will keep very high sealability.
The defectives such as existing seal ring exists the friction torque between sealing lip and the dust cover larger more, and sealing effect is poor.
Summary of the invention
Defective in view of the prior art existence, the objective of the invention is to provide a kind of combined type packing ring of new structure, this combined labyrinth and carbon gland coil structures adopts bilateral bead structure, reduce the radial interference amount of main lip, reach the friction that reduces between sealing lip and the dust cover, reach the purpose that reduces rotation torque.
To achieve these goals, technological scheme of the present invention is:
High leak tightness is hanged down torque combined seal ring, formed by inner frame, rubber body and dust cover, inner frame and dust cover form sealed cavity, place the caulking gum body in the sealing cavity, it is characterized in that: described caulking gum body comprises the body of rubber that matches with the inner frame shape, the main lip that extends out on the body of rubber, auxiliary lip and bilateral bead structure; Described auxiliary lip interference fit is on the inwall of dust cover; Described bilateral bead structure comprises first side lip and Second Edge lip, and first side lip and the equal interference fit of Second Edge lip are on the inwall of dust cover.
Further preferred, described first side lip and body of rubber are " L " shape of inclination, and its end interference fit is on the inwall of dust cover.
Further preferred, described first side lip and Second Edge lip are " U " shape fork structure that tilts, and the angle of inclination of two limit lips is slightly different, the length of first side lip is longer than the length of Second Edge lip, such structure has effectively guaranteed in the situation of first side lip seal performance failure, the Second Edge lip plays the effect of double seal protection, can prevent effectively also simultaneously that the first side lip is because of wearing and tearing, in the situation of its sealability total failure, the Second Edge lip plays the effect of salable protection, further improves working life.
Further preferred, described main lip and auxiliary lip are arch structure, are convenient to the rubber elasticity return.
Further preferred, the matching relationship of described main lip and dust cover is divided into two kinds of situations, and a kind of situation is that main lip interference fit is on the inwall of dust cover; Another kind of situation is the inwall that main lip does not contact dust cover.The form of these two kinds of main lips is to decide according to the situation of the interior pressure of main lip and extraneous Environmental Conditions, adopts main lip interference fit in the structural type of dust cover inwall when pressing high, extraneous dust or muddy water serious in the main lip.
The present invention adopts bilateral bead structure on existing combined type packing ring basis, reduce the radial interference amount of main lip, reaches the friction that reduces between sealing lip and the dust cover, reaches the purpose that reduces rotation torque.By non-resilient FEM finite element analysis, scientifically design the lumbar shape of limit lip, make rubber lip automatic elastic retrieving compensation after wearing and tearing, reach the purpose that sealability does not reduce.
Description of drawings
Fig. 1 is existing combined type packing ring structural representation;
Fig. 2 is the low torque combined seal ring structural representation one of high leak tightness;
Fig. 3 is the low torque combined seal ring structural representation two of high leak tightness;
Among the figure: 1, inner frame, 2, dust cover, 3, the caulking gum body, 3a, body of rubber, 3b, main lip, 3c, auxiliary lip, 3d, first side lip, 3e Second Edge lip, 4, the limit lip of prior art.
Embodiment
Further specify technological scheme of the present invention below in conjunction with accompanying drawing:
With existing combined type packing ring as shown in Figure 1, the present invention adopts bilateral bead structure on existing combined type packing ring basis, to reduce the radial interference amount of main lip, reach the friction that reduces between sealing lip and the dust cover, reach the purpose that reduces rotation torque.
High leak tightness is hanged down torque combined seal ring, shown in Fig. 2,3, the present invention is comprised of inner frame 1, rubber body 3 and dust cover 2, inner frame 1 forms sealed cavity with dust cover 2, place caulking gum body 3 in the sealing cavity, it is characterized in that: described caulking gum body 3 comprises the body of rubber 3a that matches with the inner frame shape, the main lip 3b that extends out on the body of rubber 3a, auxiliary lip 3c and bilateral bead structure; Described auxiliary lip 3c interference fit is on the inwall of dust cover 2; Described bilateral bead structure comprises first side lip 3d and Second Edge lip 3e, and first side lip 3d and the equal interference fit of Second Edge lip 3e are on the inwall of dust cover 2.
Further preferred, described first side lip 3d and body of rubber 3a are " L " shape of inclination, and its end interference fit is on the inwall of dust cover 2.
Further preferred, described first side lip 3d and Second Edge lip 3e are " U " shape fork structure that tilts, and first side lip 3d is slightly different from the angle of inclination of Second Edge lip 3e, such structure has effectively guaranteed in the situation of first side lip 3d sealability inefficacy, Second Edge lip 3e plays the effect of double seal protection, can prevent effectively also simultaneously that first side lip 3d is because of wearing and tearing, in the situation of its sealability total failure, Second Edge lip 3e plays the effect of salable protection, further improves working life.
Further preferred, described main lip 3b and auxiliary lip 3c are arch structure, are convenient to the rubber elasticity return.
Further preferred, the matching relationship of described main lip 3b and dust cover 2 is divided into two kinds of situations, and a kind of situation is that main lip 3b interference fit is on the inwall of dust cover 2; Another kind of situation is the inwall that main lip 3b does not contact dust cover 2, the form of these two kinds of main lips is to decide according to the situation of the interior pressure of main lip and extraneous Environmental Conditions, adopts main lip interference fit in the structural type of dust cover inwall when pressing high, extraneous dust or muddy water serious in the main lip.
Claims (5)
1. high leak tightness is hanged down torque combined seal ring, formed by inner frame, rubber body and dust cover, inner frame and dust cover form sealed cavity, place the caulking gum body in the sealing cavity, it is characterized in that: described caulking gum body comprises the body of rubber that matches with the inner frame shape, the main lip that extends out on the body of rubber, auxiliary lip and bilateral bead structure; Described auxiliary lip interference fit is on the inwall of dust cover; Described bilateral bead structure comprises first side lip and Second Edge lip, and first side lip and the equal interference fit of Second Edge lip are on the inwall of dust cover.
2. high leak tightness according to claim 1 is hanged down torque combined seal ring, and it is characterized in that: described first side lip and body of rubber are " L " shape of inclination, and its end interference fit is on the inwall of dust cover.
3. high leak tightness according to claim 1 is hanged down torque combined seal ring, it is characterized in that: described first side lip and Second Edge lip are " U " shape fork structure that tilts, and the angle of inclination of two limit lips is different, and the length of first side lip is longer than the length of Second Edge lip.
4. high leak tightness according to claim 1 is hanged down torque combined seal ring, and it is characterized in that: described main lip and auxiliary lip are arch structure, are convenient to the rubber elasticity return.
5. high leak tightness according to claim 1 is hanged down torque combined seal ring, and it is characterized in that: the matching relationship of described main lip and dust cover is divided into two kinds of situations, and a kind of situation is that main lip interference fit is on the inwall of dust cover; Another kind of situation is the inwall that main lip does not contact dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105826396A CN103032473A (en) | 2012-12-28 | 2012-12-28 | Combined sealing ring with high sealability and low torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105826396A CN103032473A (en) | 2012-12-28 | 2012-12-28 | Combined sealing ring with high sealability and low torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103032473A true CN103032473A (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105826396A Pending CN103032473A (en) | 2012-12-28 | 2012-12-28 | Combined sealing ring with high sealability and low torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103032473A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173842A (en) * | 2018-11-13 | 2020-05-19 | 中西金属工业株式会社 | Seal for rotation |
| CN112606519A (en) * | 2020-12-08 | 2021-04-06 | 安徽信盟装备股份有限公司 | Laminating machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009024807A (en) * | 2007-07-20 | 2009-02-05 | Jtekt Corp | Sealing device |
| CN101868660A (en) * | 2007-11-20 | 2010-10-20 | 株式会社捷太格特 | Sealing device, rolling bearing, and rolling bearing for wheel |
| CN202023837U (en) * | 2011-04-20 | 2011-11-02 | 杭州沃众汽车轴承有限公司 | Tapered roller bearing unit integrated with flange |
| CN203146600U (en) * | 2012-12-28 | 2013-08-21 | 瓦房店轴承集团有限责任公司 | High-sealing low-torque combined type sealing ring |
-
2012
- 2012-12-28 CN CN2012105826396A patent/CN103032473A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009024807A (en) * | 2007-07-20 | 2009-02-05 | Jtekt Corp | Sealing device |
| CN101868660A (en) * | 2007-11-20 | 2010-10-20 | 株式会社捷太格特 | Sealing device, rolling bearing, and rolling bearing for wheel |
| CN202023837U (en) * | 2011-04-20 | 2011-11-02 | 杭州沃众汽车轴承有限公司 | Tapered roller bearing unit integrated with flange |
| CN203146600U (en) * | 2012-12-28 | 2013-08-21 | 瓦房店轴承集团有限责任公司 | High-sealing low-torque combined type sealing ring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173842A (en) * | 2018-11-13 | 2020-05-19 | 中西金属工业株式会社 | Seal for rotation |
| CN112606519A (en) * | 2020-12-08 | 2021-04-06 | 安徽信盟装备股份有限公司 | Laminating machine |
| CN112606519B (en) * | 2020-12-08 | 2023-08-04 | 安徽信盟装备股份有限公司 | Laminating machine |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |