CN215634472U - Sealing structure for hub bearing - Google Patents
Sealing structure for hub bearing Download PDFInfo
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- CN215634472U CN215634472U CN202121757027.7U CN202121757027U CN215634472U CN 215634472 U CN215634472 U CN 215634472U CN 202121757027 U CN202121757027 U CN 202121757027U CN 215634472 U CN215634472 U CN 215634472U
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- lip
- shielding
- flange
- shielding part
- connecting portion
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Abstract
The utility model discloses a sealing structure for a hub bearing, which comprises a framework, wherein the framework comprises a shielding part and a connecting part, the shielding part is used for shielding the flange inner ring and the flange outer ring, the connecting part is used for being connected with the flange inner ring, a positioning groove and a positioning bulge are arranged between the connecting part and the shielding part, the connecting part and the shielding part are connected through the positioning bulge and the positioning groove to realize the positioning fit of the connecting part and the shielding part, a shielding edge is obliquely arranged on the shielding part, a shielding lip is arranged on the outer wall of the framework, one end of the shielding lip is fixedly connected with the connecting part, the other end of the shielding lip is arranged along the outer wall of the shielding part and the shielding edge, and a plurality of sealing lips are further extended on the shielding lip. The anti-seepage device is simple in structure, good in anti-seepage effect and capable of effectively improving the using effect of the whole structure.
Description
Technical Field
The utility model relates to the technical field of hub bearings.
Background
Wheel hub bearing, it includes the flange inner circle, the flange outer lane and the rolling member of setting between flange inner circle and flange outer lane, in order to prolong overall structure's life, need set up seal structure between flange inner circle and flange outer lane, avoid the grease between flange outer lane and the flange inner circle to reveal out, present seal structure mainly realizes the closure between the flange inner circle and the flange outer lane through the seal lip structure, but present seal lip structure is comparatively simple, prevent that the effect of seepage is relatively poor, and at the high-speed operation in-process of bearing, the easy clearance that forms of seal lip edge, thereby make the grease throw away, cause the leakage of lubricated grease, influence overall structure's result of use.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a sealing structure for a hub bearing, which has the advantages of simple structure and good anti-seepage effect, and effectively improves the using effect of the whole structure.
In order to achieve the purpose, the utility model provides a sealing structure for a hub bearing, which comprises a framework, wherein the framework comprises a shielding part and a connecting part, the shielding part is used for shielding the flange inner ring and the flange outer ring, the connecting part is used for being connected with the flange inner ring, a positioning groove and a positioning bulge are arranged between the connecting part and the shielding part, the connecting part and the shielding part are connected with the positioning groove through the positioning bulge to realize the positioning fit of the connecting part and the shielding part, a shielding edge is obliquely arranged on the shielding part, a shielding lip is arranged on the outer wall of the framework, one end of the shielding lip is fixedly connected with the connecting part, the other end of the shielding lip is arranged along the outer wall of the shielding part and the shielding edge, and a plurality of sealing lips extend from the shielding lip.
The beneficial effect who so sets up is: set up like this, because rotate between connecting portion and the occlusion part and be connected, make rotate the in-process at the bearing, connecting portion and occlusion part can appear floating, simultaneously through sheltering from the limit on the occlusion part, can be along with floating and contradict on flange inner circle or flange outer circle, thereby play the closure effect, cooperate simultaneously and keep off the lip structure, can be better seal, prevent leakage, keep off the lip simultaneously and can play the effect to connecting portion and occlusion part auxiliary connection, simultaneously can play the whole effectual location to the structure through the fender lip that sets up the location arch and the locating slot position, avoid appearing the not hard up condition of off tracking, and overall structure is simple, do benefit to the realization, the prevention of seepage is effectual, effectively improve overall structure's result of use.
As a further arrangement of the present invention, the seal lip includes a grease lip extending toward the inside of the bearing, a barrier lip for blocking foreign matter from the outside, and a separation lip disposed between the grease lip and the barrier lip.
The beneficial effect who so sets up is: set up like this, with the seal lip set up like this, be multilayer structure, can carry out effective separation to outside impurity, effectively prevent the seepage of inside grease simultaneously, have good sealed effect, simple structure simultaneously, reasonable in design effectively improves overall structure's result of use.
As a further arrangement of the utility model, the shielding edge is arranged outside the blocking lip, a supporting flange extends towards the blocking lip, and the end part of the supporting flange is fixedly connected with the blocking lip.
The beneficial effect who so sets up is: set up like this, can further keep the stability of separation lip position, avoid taking place not hard up for outside impurity gets into, influences inner structure's use, and simple structure does benefit to the realization simultaneously, effectively improves overall structure's result of use.
As a further arrangement of the utility model, a blocking edge used for blocking and arranging between the flange inner ring and the flange outer ring is further formed on the connecting part, an anti-seepage lip is arranged on the blocking edge, and the anti-seepage lip extends towards the grease lip and is abutted against the grease lip.
The beneficial effect who so sets up is: the anti-seepage device is simple in structure and beneficial to implementation.
As a further arrangement of the utility model, the ends of the grease lip, the separation lip and the isolation lip are provided with arc-shaped air holes.
The beneficial effect who so sets up is: the arrangement is that the air flow channel is formed, so that external air flow can enter the bearing through the fit clearance and the arc hole when the bearing rotates at a high speed, and further air pressure balance is formed inside and outside the bearing. The problem of grease leakage caused by overlarge internal air pressure due to temperature rise formed during high-speed rotation of a product is prevented, and the sucking disc effect formed by sealing rubber can be prevented, so that dry friction is formed at the matching part of the sealing lip rubber and the inner flange when the bearing rotates to cause the rotation abnormal sound of the bearing product.
Drawings
FIG. 1 is an exploded view of a skeletal structure in an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.
Detailed Description
An embodiment of the sealing structure for a hub bearing of the present invention is shown in fig. 1 and 2: including the skeleton, the skeleton is including being used for keeping off the shelter from 2 of establishing between flange inner circle and flange outer lane and being used for the connecting portion 1 of being connected with the flange inner circle, be provided with constant head tank 11 and location arch 21 between connecting portion 1 and the shelter from 2, connecting portion 1 and shelter from 2 realize the location fit of connecting portion 1 and shelter from 2 through being connected of location arch 21 with constant head tank 11, it is provided with shelters from limit 22 still to incline to be provided with on the shelter from 2, be provided with on the skeleton outer wall and keep off lip 3, 3 one end of fender lip and 1 fixed connection of connecting portion, the other end is arranged the setting along shelter from 2 and shelters from limit 22 outer wall, it has a plurality of sealed lips still to extend on the lip 3 to keep off. The beneficial effect who so sets up is: set up like this, because connect portion 1 and shielding part 2 between rotate and be connected, make and rotate the in-process at the bearing, connecting portion 1 can appear floating with shielding part 2, simultaneously through shielding edge 22 on shielding part 2, can be along with floating to contradict on flange inner circle or flange outer circle, thereby play the sealing action, cooperate simultaneously and keep off lip 3 structure, can be better seal, prevent leakage, keep off lip 3 simultaneously and can play the effect to connecting portion 1 and 2 auxiliary connection of shielding part, keep off lip 3 through setting up location arch 21 and constant head tank 11 position can play the whole effectual location of structure simultaneously, avoid appearing the not hard up condition of off tracking, and overall structure is simple, do benefit to the realization, prevention of seepage is effectual, overall structure's result of use is effectively improved.
As a further arrangement of the present invention, the seal lip includes a grease lip 33 extending toward the inside of the bearing, a barrier lip 31 for blocking foreign matters from the outside, and a barrier lip 32, and the barrier lip 32 is disposed between the grease lip 33 and the barrier lip 31. The beneficial effect who so sets up is: set up like this, with the seal lip set up like this, be multilayer structure, can carry out effective separation to outside impurity, effectively prevent the seepage of inside grease simultaneously, have good sealed effect, simple structure simultaneously, reasonable in design effectively improves overall structure's result of use.
As a further arrangement of the present invention, the blocking edge 22 is disposed outside the blocking lip 31, the blocking edge 22 extends toward the blocking lip 31 to form a supporting flange 23, and an end of the supporting flange 23 is fixedly connected to the blocking lip 31. The beneficial effect who so sets up is: set up like this, can further keep the stability in separation lip 31 position, avoid taking place not hard up for outside impurity gets into, influences inner structure's use, and simple structure does benefit to the realization simultaneously, effectively improves overall structure's result of use.
As a further arrangement of the present invention, a blocking edge 12 for blocking between the flange inner ring and the flange outer ring is further formed on the connecting portion 1, an anti-seepage lip 13 is arranged on the blocking edge 12, and the anti-seepage lip 13 extends towards the grease lip 33 and is abutted against the grease lip 33. The beneficial effect who so sets up is: the arrangement further improves the shielding and seepage-proofing effect of the whole structure, the seepage-proofing lip 13 is arranged to abut against the grease lip 33, seepage of grease is effectively reduced, and meanwhile, the structure is simple and beneficial to implementation.
As a further arrangement of the utility model, the ends of the grease lip 33, the separation lip 31 and the isolation lip 32 are provided with arc-shaped air holes. The beneficial effect who so sets up is: the arrangement is that the air flow channel is formed, so that external air flow can enter the bearing through the fit clearance and the arc hole when the bearing rotates at a high speed, and further air pressure balance is formed inside and outside the bearing. The problem of grease leakage caused by overlarge internal air pressure due to temperature rise formed during high-speed rotation of a product is prevented, and the sucking disc effect formed by sealing rubber can be prevented, so that dry friction is formed at the matching part of the sealing lip rubber and the inner flange when the bearing rotates to cause the rotation abnormal sound of the bearing product.
The above example is only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (5)
1. A seal structure for a hub bearing, characterized by: including the skeleton, the skeleton is including being used for keeping off the shielding part of establishing between flange inner circle and flange outer lane and the connecting portion that are used for being connected with the flange inner circle, it is protruding to be provided with constant head tank and location between connecting portion and the shielding part, connecting portion and shielding part realize the location fit of connecting portion and shielding part through the protruding being connected with the constant head tank in location, it is provided with the flange to go back the slope in the shielding part, be provided with on the skeleton outer wall and keep off the lip, keep off lip one end and connecting portion fixed connection, the other end is arranged the setting along the shielding part and shelter from the limit outer wall, it has a plurality of sealing lips still to extend on the flange.
2. A seal structure for a hub bearing according to claim 1, wherein: the seal lip is including being used for to the grease lip that the inside direction of bearing extended, be used for sheltering from outside impurity's separation lip and isolation lip, the separation lip sets up between grease lip and separation lip.
3. A sealing structure for a hub bearing according to claim 2, wherein: the shielding edge is arranged on the outer side of the blocking lip, the shielding edge extends to the blocking lip to form a supporting flange, and the end part of the supporting flange is fixedly connected with the blocking lip.
4. A seal structure for a hub bearing according to claim 1, 2 or 3, wherein: still be formed with on the connecting portion and be used for keeping off the limit of blockking of establishing between flange inner circle and flange outer lane, it is provided with the prevention of seepage lip to block the edge, the prevention of seepage lip extends and contradicts on the grease lip to the grease lip.
5. A sealing structure for a hub bearing according to claim 2, wherein: the end parts of the grease lip, the separation lip and the isolation lip are provided with arc-shaped air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121757027.7U CN215634472U (en) | 2021-07-29 | 2021-07-29 | Sealing structure for hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121757027.7U CN215634472U (en) | 2021-07-29 | 2021-07-29 | Sealing structure for hub bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215634472U true CN215634472U (en) | 2022-01-25 |
Family
ID=79893512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121757027.7U Active CN215634472U (en) | 2021-07-29 | 2021-07-29 | Sealing structure for hub bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215634472U (en) |
-
2021
- 2021-07-29 CN CN202121757027.7U patent/CN215634472U/en active Active
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