CN215567287U - Anti-deformation dustproof automobile hub bearing - Google Patents
Anti-deformation dustproof automobile hub bearing Download PDFInfo
- Publication number
- CN215567287U CN215567287U CN202122172291.0U CN202122172291U CN215567287U CN 215567287 U CN215567287 U CN 215567287U CN 202122172291 U CN202122172291 U CN 202122172291U CN 215567287 U CN215567287 U CN 215567287U
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- CN
- China
- Prior art keywords
- liquid storage
- sleeve
- outer ring
- hub bearing
- liquid
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- 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
Links
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 238000003860 storage Methods 0.000 claims abstract description 34
- 238000001704 evaporation Methods 0.000 claims abstract description 28
- 230000008020 evaporation Effects 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 230000001502 supplementing effect Effects 0.000 claims abstract description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 23
- 239000010410 layer Substances 0.000 description 18
- 239000002356 single layer Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to the technical field of automobile bearings. The anti-deformation dustproof automobile hub bearing comprises an inner ring, an outer ring and a roller, wherein a rolling groove is formed between the inner ring and the outer ring, and the roller is arranged in the rolling groove through a retainer; a liquid storage tank with a trapezoidal cross section and arranged annularly is concavely arranged on the circumferential surface of the middle section of the outer ring, a matched sleeve is further sleeved outside the outer ring, a liquid storage bin is formed between the sleeve and the liquid storage tank, and evaporation liquid is filled in the liquid storage bin; a plurality of evaporation holes and a liquid supplementing port communicated with the interior of the liquid storage bin are formed in the side wall of the sleeve; and a waterproof breathable film is further arranged on the inner side wall of the sleeve. The utility model has larger heat dissipation surface, releases heat through evaporation of the evaporated liquid, effectively improves the running condition of the hub bearing under severe working conditions and prolongs the service life.
Description
Technical Field
The utility model relates to the technical field of automobile bearings, in particular to an anti-deformation dustproof automobile hub bearing.
Background
The hub bearing is applied to the end part of an automobile shaft, is used for providing support for the hub and providing accurate guide for the rotation of the hub, bears axial load and radial load, and is an important component part for the load and rotation of the automobile. Through development for many years, the automobile hub bearing forms various types such as an integrated type, a combined type, a single-layer type and a double-layer type, the single-layer type hub bearing has the advantages of being simple in structure, low in manufacturing cost and the like, and is suitable for being applied to light small-load vehicles, the single-layer type hub bearing generally comprises an inner ring and an outer ring, and a roller is arranged between the inner ring and the outer ring through a retainer. In order to keep the smooth rotation between the inner ring and the outer ring, it is usually necessary to seal the gap between the inner ring and the outer ring to prevent moisture, dust, etc. from entering the inside of the bearing and affecting the normal operation of the bearing. The sealing elements used on the common hub bearing can be metal sealing covers or rubber sealing covers, but the sealing elements have certain falling risks due to insufficient installation tightness in the long-term use process, so that the problem of sealing failure is caused. In addition, current wheel hub bearing can produce a large amount of heats at the high load operation in-process of vehicle, under the condition of high temperature, can lead to the bearing to warp, and then aggravation wearing and tearing, seriously influenced wheel hub bearing's life, even the thing still can threaten driving safety.
Disclosure of Invention
The utility model aims to provide an anti-deformation dustproof automobile hub bearing capable of quickly dissipating heat.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: an anti-deformation dustproof automobile hub bearing comprises an inner ring, an outer ring and a roller, wherein a rolling groove is formed between the inner ring and the outer ring, and the roller is arranged in the rolling groove through a retainer;
a liquid storage tank with a trapezoidal cross section and arranged annularly is concavely arranged on the circumferential surface of the middle section of the outer ring, a matched sleeve is further sleeved outside the outer ring, a liquid storage bin is formed between the sleeve and the liquid storage tank, and evaporation liquid is filled in the liquid storage bin;
a plurality of evaporation holes and a liquid supplementing port communicated with the interior of the liquid storage bin are formed in the side wall of the sleeve; and a waterproof breathable film is further arranged on the inner side wall of the sleeve.
Preferably, one end of the sleeve is provided with an annular bevel edge matched with the bevel edge of the liquid storage tank, and the bevel edge abuts against the bevel edge of the upper liquid storage tank; and a circle of annular flange is arranged on the inner edge of the other end of the sleeve, and the sleeve is fixedly connected with the outer ring through a bolt.
Preferably, a plurality of concave ring grooves are formed in the outer ring side wall corresponding to the bottom of the liquid storage tank.
Preferably, the waterproof breathable film comprises two layers of PP anti-sticking non-woven fabrics and one layer of PE high-molecular breathable film clamped between the PP anti-sticking non-woven fabrics.
Preferably, the evaporation hole is in a strip shape and extends along the length direction of the sleeve.
The beneficial effects of the utility model are concentrated and expressed as follows: the heat dissipation device has a larger heat dissipation surface, releases heat through evaporation of the evaporated liquid, effectively improves the running condition of the hub bearing under severe working conditions, and prolongs the service life. Specifically, when the bearing is used, certain friction is generated when the outer ring and the inner ring rotate relatively, the temperature in the bearing is transferred to the outer ring, and then the temperature is released through the outer ring. The liquid storage tank is arranged, and the section of the liquid storage tank is trapezoidal, so that the contact area of the liquid storage tank and the outside is large, and heat can be quickly transferred to the evaporation liquid. When the temperature is too high, the evaporating liquid is evaporated, the gasified evaporating liquid passes through the waterproof breathable film and is discharged from the evaporating hole, and the high temperature is released to the outside. Compared with the traditional mode of radiating by only depending on the outer ring of the bearing, the utility model has higher radiating efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a schematic structural view of the rubber seal ring.
Detailed Description
As shown in fig. 1-4, the anti-deformation dustproof automobile hub bearing is the same as a traditional hub bearing, and the anti-deformation dustproof automobile hub bearing also comprises an inner ring 1, an outer ring 2 and rollers 3, wherein a rolling groove 4 is formed between the inner ring 1 and the outer ring 2, and the rollers 3 are installed in the rolling groove 4 through a retainer 5.
However, compared with the conventional hub bearing, one of the differences of the present invention is that the gaps between the two ends of the inner ring 1 and the outer ring 2 are recessed to form an annular seal cavity 6, and the seal cavity 6 comprises an outer cavity located on the outer ring 2 and an inner cavity located on the inner ring 1. As shown in fig. 2, the upper section of the sealed cavity 6 in fig. 2 is an outer cavity, and the lower section is an inner cavity, which together form the sealed cavity 6. Two layers of rubber sealing rings 7 are arranged in the sealing cavity 6 side by side, and in the inner layer and the outer layer of the rubber sealing rings 7, the outer edge of one layer is provided with a folding edge 8, and the inner edge of the other layer is provided with a folding edge 8. As shown in the figure, the outer layer rubber seal ring 7 is located at the uppermost L-shaped portion, and the inner layer rubber seal ring 7 is located at the lowermost L-shaped portion, that is, the folded edge 8.
The side walls of the inner cavity and the outer cavity are provided with clamping grooves 9 at positions opposite to the folding edges 8, the folding edges 8 are provided with clamping edges 10 matched with the clamping grooves 9, and the clamping edges 10 are positioned in the clamping grooves 9; on the other hand, the folding edge 8 is paved on the wall of the sealed cavity, and the folding edge 8 is used as a stable foundation, so that the stability is also improved. The cross sections of the clamping ribs 10 and the clamping grooves 9 can be both in a drop shape as shown in fig. 2, and can also be in a shape with a converging end, such as a trapezoid, a triangle and the like.
In order to further ensure that the clamping edges 10 are clamped in the clamping grooves 9, a plurality of edge holes 11 communicated with the clamping grooves 9 are formed in the end faces of the inner ring 1 and the outer ring 2. A micro cavity 12 is arranged in the clamping edge 10 along the length direction of the clamping edge 10, the micro cavity 12 is filled with water-absorbing expansion resin, and micro holes for communicating the surface of the clamping edge 10 with the micro cavity 12 are formed in the clamping edge 10.
The rubber sealing ring 7 is provided with two layers to form double sealing, and the sealing effect is excellent. Meanwhile, as the clamping edge 10 can be clamped in the clamping groove 9, with long-time use, external water vapor penetrates through the side hole 11 and enters the clamping groove 9, and then enters the micro cavity 12 from the micro hole on the clamping edge 10, the water-absorbent expansion resin inside the clamping edge 10 absorbs the external water vapor and then expands in volume to prop the clamping edge 10 open, so that the tightness of the clamping edge in the clamping groove 9 can be ensured, the risk of dislocation under the influence of factors such as shaking and temperature change is reduced, and the sealing performance is ensured.
In order to further improve the sealing performance of the two layers of rubber sealing rings 7 to the sealing cavity, in the utility model, as shown in fig. 2 and 3, a plurality of annular sealing ribs 13 are arranged on the opposite surfaces of the two layers of rubber sealing rings 7, and the sealing ribs 13 on the two layers of rubber sealing rings 7 are staggered with each other to form an S-shaped sealing channel. The number of the sealing ribs 13 on each layer of the rubber sealing ring 7 is generally not less than three, but may be increased or decreased according to actual conditions.
The hub bearing has the advantages of better sealing performance and better heat dissipation performance compared with the traditional hub bearing. Referring to fig. 1 and 4, a liquid storage tank 14 with a trapezoidal cross section and arranged annularly is concavely arranged on the circumferential surface of the middle section of the outer ring 2, a sleeve 15 matched with the outer ring 2 is further sleeved outside the outer ring, a liquid storage bin 16 is formed between the sleeve 15 and the liquid storage tank 14, an evaporation liquid is filled in the liquid storage bin 16, the simplest common evaporation liquid can be selected as water, and of course, other liquids with larger specific heat capacity can be selected as the evaporation liquid.
The side wall of the sleeve 15 is provided with a plurality of evaporation holes 17 and a liquid supplementing port 18 communicated with the interior of the liquid storage bin 16. The vaporized evaporation liquid can be discharged through the evaporation holes 17, and the evaporation holes 17 may have various shapes, such as a circle, an ellipse, and the like, or as shown in the drawing, the evaporation holes 17 may have a strip shape and extend in the longitudinal direction of the sleeve 15. The inner side wall of the sleeve 15 is also provided with a layer of waterproof breathable film 19. The waterproof breathable film 19 is used for preventing liquid evaporating liquid from flowing out of the evaporation holes 17, and generally, the waterproof breathable film 19 comprises two layers of PP anti-sticking non-woven fabrics and one layer of PE high-molecular breathable film sandwiched between the PP anti-sticking non-woven fabrics.
Because bearing inner race 2, inner circle 1 relative rotation indispensable have certain friction, the inside temperature of bearing can be transmitted to outer lane 2, and the rethread outer lane 2 releases. The liquid storage tank 14 is arranged, and the section of the liquid storage tank 14 is trapezoidal, so that the contact area between the liquid storage tank and the outside is large, and heat can be quickly transferred to the evaporation liquid. When the temperature is too high, the evaporated liquid is evaporated, and the gasified evaporated liquid passes through the waterproof breathable film 19 and is discharged from the evaporation hole 17, so that the high temperature is released to the outside. Compared with the traditional mode of radiating by only depending on the bearing outer ring 2, the utility model has higher radiating efficiency.
Of course, in order to facilitate the mounting of the sleeve 15 and to ensure the stability of the mounting of the sleeve 15, it is also preferable according to the utility model if, as shown in fig. 1, one end of the sleeve 15 is provided with an annular sloping edge 20 cooperating with the sloping surface of the reservoir 14, said sloping edge 20 resting against the sloping surface of the upper reservoir 14. The inner edge of the other end of the sleeve 15 is provided with a ring-shaped flange 21, the sleeve 15 is fixedly connected with the outer ring 2 through a bolt 22, and the bolt 22 can be fixedly connected with the outer ring 2 from the side wall of the sleeve 15 or the end face where the flange 21 is located.
In addition, in order to further improve the capability of the outer ring 2 for guiding heat to the evaporating liquid, a plurality of concave ring grooves 23 are arranged on the side wall of the outer ring 2 corresponding to the bottom of the liquid storage tank 14. Through the arrangement of the annular groove 23, the contact area between the outer ring 2 and the evaporating liquid in the liquid storage bin 16 and the outer ring 2 can be further increased. Of course, the arrangement of the ring groove 23 should be based on the requirement of not affecting the structural strength of the outer ring 2, so the depth of the groove should be set to have more comprehensive consideration to the thickness of the outer ring 2, the heat dissipation requirement, and the like.
Claims (5)
1. An anti-deformation dustproof automobile hub bearing comprises an inner ring (1), an outer ring (2) and a roller (3), wherein a rolling groove (4) is formed between the inner ring (1) and the outer ring (2), and the roller (3) is installed in the rolling groove (4) through a retainer (5);
the method is characterized in that: a liquid storage tank (14) which is trapezoidal in cross section and is annularly arranged is concavely arranged on the circumferential surface of the middle section of the outer ring (2), a matched sleeve (15) is further sleeved outside the outer ring (2), a liquid storage bin (16) is formed between the sleeve (15) and the liquid storage tank (14), and evaporation liquid is filled in the liquid storage bin (16);
a plurality of evaporation holes (17) and a liquid supplementing port (18) communicated with the interior of the liquid storage bin (16) are formed in the side wall of the sleeve (15); the inner side wall of the sleeve (15) is also provided with a layer of waterproof breathable film (19).
2. The anti-deformation dustproof automobile hub bearing according to claim 1, characterized in that: one end of the sleeve (15) is provided with an annular bevel edge (20) matched with the bevel edge of the liquid storage tank (14), and the bevel edge (20) abuts against the bevel edge of the upper liquid storage tank (14); the inner edge of the other end of the sleeve (15) is provided with a ring-shaped flange (21), and the sleeve (15) is fixedly connected with the outer ring (2) through a bolt (22).
3. The anti-deformation dustproof automobile hub bearing according to claim 2, characterized in that: and a plurality of concave ring grooves (23) are arranged on the side wall of the outer ring (2) corresponding to the groove bottom of the liquid storage tank (14).
4. The anti-deformation dustproof automobile hub bearing according to claim 3, characterized in that: the waterproof breathable film (19) comprises two layers of PP anti-sticking non-woven fabrics and one layer of PE high-molecular breathable film clamped between the PP anti-sticking non-woven fabrics.
5. The anti-deformation dustproof automobile hub bearing according to claim 4, characterized in that: the evaporation holes (17) are strip-shaped and extend along the length direction of the sleeve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122172291.0U CN215567287U (en) | 2021-09-09 | 2021-09-09 | Anti-deformation dustproof automobile hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122172291.0U CN215567287U (en) | 2021-09-09 | 2021-09-09 | Anti-deformation dustproof automobile hub bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215567287U true CN215567287U (en) | 2022-01-18 |
Family
ID=79848898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122172291.0U Expired - Fee Related CN215567287U (en) | 2021-09-09 | 2021-09-09 | Anti-deformation dustproof automobile hub bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215567287U (en) |
-
2021
- 2021-09-09 CN CN202122172291.0U patent/CN215567287U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |