CN220416021U - Protective cover type rubber bearing sealing assembly - Google Patents
Protective cover type rubber bearing sealing assembly Download PDFInfo
- Publication number
- CN220416021U CN220416021U CN202322058079.0U CN202322058079U CN220416021U CN 220416021 U CN220416021 U CN 220416021U CN 202322058079 U CN202322058079 U CN 202322058079U CN 220416021 U CN220416021 U CN 220416021U
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- CN
- China
- Prior art keywords
- protective cover
- lip body
- bearing
- inner lip
- type rubber
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- 230000001681 protective effect Effects 0.000 title claims abstract description 47
- 238000007789 sealing Methods 0.000 title claims abstract description 32
- 229920001971 elastomer Polymers 0.000 title claims abstract description 24
- 238000005452 bending Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000009545 invasion Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920006247 high-performance elastomer Polymers 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Abstract
The utility model discloses a protective cover type rubber bearing sealing assembly, and belongs to the technical field of bearing sealing and dust prevention. The protective cover is characterized in that an elastic clamping structure is arranged on the periphery of the protective cover; the inner side of the protective cover is provided with an inner lip body with a V-shaped cross section, the upper end of the inner lip body is fixed on the protective cover, and the lower end of the inner lip body is inserted between the protective cover and the bearing inner ring; the middle corner of the inner lip body is sleeved with a spring ring. The protection casing can be through the elasticity joint structure elasticity clamping setting that the periphery set up in the annular groove of bearing outer lane, and the interior lip body of installation fixed convenient and firm "V" shape forms tortuous sealed blocking with the cooperation of "L" shape internal baffle hem, makes this seal assembly friction torque slightly big, but dustproof performance is superior, and waterproof nature is good.
Description
Technical Field
The utility model belongs to the technical field of bearing sealing and dust prevention, and particularly relates to a protective cover type rubber bearing sealing assembly.
Background
The sealing structure of the bearing is a structure body with a protection function, which is used for preventing the leakage of lubricating oil in the bearing and the invasion of external dust, water or other impurity dirt into the bearing, so that the bearing can be ensured to run in a good working environment, and the service life of the bearing is effectively prolonged.
The prior bearing sealing structure generally comprises the following two forms: one is a single-layer sealing structure, the single-layer sealing ring is directly contacted with other dirt such as the outside atmosphere, dust, water and the like, the dirt is easy to invade the inside of the bearing, and the actual protection effect is poor; the other is a double-lip or multi-lip sealing structure, the outer layer of the structure is a dustproof cover without glue, and the inner layer is a rubber sealing ring. In the form, although the outer-layer dust cover is used for blocking external pollutants, gaps are reserved between the outer-layer dust cover and the bearing outer ring, and dust mixed with air can easily enter a cavity between the dust cover and the inner layer through the gaps between the dust cover and the bearing outer ring. Particularly, when agricultural machinery works in farmlands, dirt deposited in the cavity easily invades the cavity inside the bearing after the bearing works for a long time, and the service life of the bearing is directly influenced.
In view of the above, the applicant has developed a protective cover type rubber bearing sealing assembly which can effectively improve the sealing effect, is convenient to install, and has an exquisite structure and is suitable and practical.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a protective cover type rubber bearing sealing assembly.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the protective cover is provided with an elastic clamping structure at the periphery; the inner side of the protective cover is provided with an inner lip body with a V-shaped cross section, the upper end of the inner lip body is fixed on the protective cover, and the lower end of the inner lip body is inserted between the protective cover and the bearing inner ring; the middle corner of the inner lip body is sleeved with a spring ring.
Preferably, the inner periphery of the protective cover is provided with an L-shaped inner baffle edge, the inner baffle edge is bent towards the inner side of the bearing, and the lower end of the inner lip body is positioned below the inner baffle edge.
Preferably, the lower end of the inner lip body is contacted with the inner baffle flange; the V-shaped tip of the inner lip body and the lower end of the inner lip body are respectively contacted with the bearing inner ring.
Preferably, the cross section of the elastic clamping structure is V-shaped, and the bending angle of the elastic clamping structure is 60-100 degrees; an annular groove is formed in the inner wall of the bearing outer ring, and the elastic clamping structure can be embedded into the annular groove.
Preferably, the inner lip body is made of rubber; the thickness of the upper end support arm of the inner lip body is larger than that of the lower end support arm.
Preferably, the protective cover is an annular sealing cover body with a built-in metal plate body and an outer rubber layer.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the protective cover type rubber bearing sealing assembly, the protective cover can be elastically clamped and arranged in the annular groove of the bearing outer ring through the elastic clamping structure arranged on the periphery, and the protective cover type rubber bearing sealing assembly is convenient and firm to install and fix; an inner lip body is arranged on the inner side of the protective cover, the cross section of the inner lip body is in a V shape, the upper end of the inner lip body is fixed on the protective cover, the lower end of the inner lip body is inserted between the protective cover and the bearing inner ring, the lower end of the inner lip body is in contact with the inner baffle flange, and the V-shaped tip of the inner lip body and the lower end of the inner lip body are respectively in contact with the bearing inner ring, so that contact sealing is formed. The V-shaped inner lip body and the L-shaped inner baffle flange are matched to form a tortuous sealing barrier, so that the friction torque of the sealing component is slightly larger, but the dustproof performance is excellent, and the waterproof performance is good.
2. The spring ring is sleeved at the corner of the middle part of the inner lip body, so that the middle part of the inner lip body is necked down, the phenomenon of aging and spring losing can not occur even if the inner lip is used in a severe environment for a long time, the sealing effect on the bearing is improved, and the damage to the bearing caused by external dirt entering the bearing is effectively prevented. The novel bearing is particularly suitable for being applied to agricultural machinery equipment, dust invasion of farmland operation can be effectively resisted, and the service life of the bearing is prolonged.
Drawings
FIG. 1 is a schematic view of a usage state structure of the present utility model;
fig. 2 is a schematic cross-sectional view of the present utility model.
In the figure: 1. a bearing outer ring; 2. an elastic clamping structure; 3. a protective cover; 4. an inner lip body; 5. a spring ring; 6. an inner baffle flanging; 7. a bearing inner ring; 8. an annular groove.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The protective cover type rubber bearing sealing assembly shown in fig. 1 and 2 comprises a protective cover 3, wherein an elastic clamping structure 2 is arranged on the periphery of the protective cover 3; the cross section of the elastic clamping structure 2 is V-shaped, and the bending angle of the elastic clamping structure 2 is 60-100 degrees, preferably 90 degrees. An annular groove 8 is formed in the inner wall of the bearing outer ring 1, and the elastic clamping structure 2 can be embedded into the annular groove 8.
An inner lip body 4 with a V-shaped cross section is arranged on the inner side of the protective cover 3, the upper end of the inner lip body 4 is fixed on the protective cover 3, and the lower end of the inner lip body 4 is inserted between the protective cover 3 and the bearing inner ring 7.
The inner periphery of the protective cover 3 is provided with an L-shaped inner baffle edge 6, the inner baffle edge 6 is bent towards the inner side of the bearing, and the lower end of the inner lip body 4 is positioned below the inner baffle edge 6. The lower end of the inner lip body 4 is contacted with the inner baffle flange 6.
The spring ring 5 is sleeved at the middle corner of the inner lip body 4, so that the middle of the inner lip body 4 is necked down, the phenomenon of aging and spring loss can not occur even if the inner lip is used in a severe environment for a long time, the sealing effect on the bearing is improved, and external dirt is effectively prevented from entering the bearing to damage the bearing. The novel bearing is particularly suitable for being applied to agricultural machinery equipment, dust invasion of farmland operation can be effectively resisted, and the service life of the bearing is prolonged.
The thickness of the upper end support arm of the inner lip body 4 is larger than that of the lower end support arm, the upper end support arm plays a powerful connection and support role, and the lower end support arm can be positioned between the protective cover 3 and the bearing inner ring 7 to play a role in contact sealing.
The inner lip body 4 is made of rubber; the protective cover 3 is an annular sealing cover body with a built-in metal plate body and an outer rubber layer. The rubber material and the rubber layer are all heat-resistant acid-alkali-resistant high-performance rubber materials with certain self-lubricating performance. In this embodiment, the shield 3 and the inner lip 4 are durable and are not easily deformed by aging.
According to the protective cover 3 disclosed by the utility model, the elastic clamping structure 2 arranged on the periphery can be elastically clamped and embedded in the annular groove 8 of the bearing outer ring 1, so that the protective cover is convenient and firm to install and fix; an inner lip body 4 is arranged on the inner side of the protective cover 3, the cross section of the inner lip body 4 is in a V shape, the upper end of the inner lip body 4 is fixed on the protective cover 3, the lower end of the inner lip body 4 is inserted between the protective cover 3 and the bearing inner ring 7, the lower end of the inner lip body 4 is in contact with the inner baffle edge 6, and the tip of the V shape of the inner lip body 4 and the lower end of the inner lip body 4 are respectively in contact with the bearing inner ring 7, so that contact sealing is formed. The V-shaped inner lip body 4 and the L-shaped inner baffle flange 6 are matched to form a tortuous sealing barrier, so that the friction torque of the sealing component is slightly large, but the dustproof performance is excellent, and the waterproof performance is good.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A protective cover type rubber bearing sealing assembly comprises a protective cover (3), and is characterized in that an elastic clamping structure (2) is arranged on the periphery of the protective cover (3); an inner lip body (4) with a V-shaped cross section is arranged on the inner side of the protective cover (3), the upper end of the inner lip body (4) is fixed on the protective cover (3), and the lower end of the inner lip body (4) is inserted between the protective cover (3) and the bearing inner ring (7); a spring ring (5) is sleeved at the corner of the middle part of the inner lip body (4).
2. A protective cover type rubber bearing sealing assembly according to claim 1, wherein an 'L' -shaped inner baffle edge (6) is arranged on the inner periphery of the protective cover (3), the inner baffle edge (6) is bent towards the inner side of the bearing, and the lower end of the inner lip body (4) is positioned below the inner baffle edge (6).
3. A boot-type rubber bearing seal assembly according to claim 2, characterized in that the lower end of the inner lip body (4) is in contact with the inner flange (6); the V-shaped tip of the inner lip body (4) and the lower end of the inner lip body (4) are respectively contacted with the bearing inner ring (7).
4. The protective cover type rubber bearing sealing assembly according to claim 1, wherein the cross section of the elastic clamping structure (2) is in a V shape, and the bending angle of the elastic clamping structure (2) is 60-100 degrees; an annular groove (8) is formed in the inner wall of the bearing outer ring (1), and the elastic clamping structure (2) can be embedded into the annular groove (8).
5. A boot-type rubber bearing seal assembly according to claim 1, characterized in that the inner lip body (4) is made of rubber; the thickness of the upper end support arm of the inner lip body (4) is larger than that of the lower end support arm.
6. A boot-type rubber bearing seal assembly according to claim 1, characterized in that the boot (3) is an annular seal cover with built-in metal plate body and outer rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322058079.0U CN220416021U (en) | 2023-08-02 | 2023-08-02 | Protective cover type rubber bearing sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322058079.0U CN220416021U (en) | 2023-08-02 | 2023-08-02 | Protective cover type rubber bearing sealing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220416021U true CN220416021U (en) | 2024-01-30 |
Family
ID=89658007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322058079.0U Active CN220416021U (en) | 2023-08-02 | 2023-08-02 | Protective cover type rubber bearing sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220416021U (en) |
-
2023
- 2023-08-02 CN CN202322058079.0U patent/CN220416021U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |