CN214742803U - Wheel bearing sealing structure - Google Patents
Wheel bearing sealing structure Download PDFInfo
- Publication number
- CN214742803U CN214742803U CN202023216440.0U CN202023216440U CN214742803U CN 214742803 U CN214742803 U CN 214742803U CN 202023216440 U CN202023216440 U CN 202023216440U CN 214742803 U CN214742803 U CN 214742803U
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- Prior art keywords
- end cover
- bearing
- hub
- sealing end
- wheel
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Abstract
The utility model discloses a wheel bearing sealing structure, which comprises a wheel hub sealing end cover and an oil seal clamped in the middle of the wheel hub sealing end cover; the hub sealing end cover is provided with a plurality of reserved mounting holes for mounting on the bearing outer ring, and the hub sealing end cover is tightly attached to the outer vertical surface of the hub. Thereby provide a high leakproofness space for the wheel hub bearing through at wheel hub bearing external mounting wheel hub end cover and oil blanket in this application, reduce the pollution of outside dust to bearing lubricating oil, the inner circle chooses for use the oil blanket can effectively reduce the frictional resistance with the shaft simultaneously, to inner bearing life's extension.
Description
Technical Field
The utility model relates to a bearing seal technical field especially relates to a wheel bearing seal structure.
Background
The utility model relates to a wheel bearing seal structure, this seal structure pass through oil blanket structure and axle sleeve within a definite time and produce closely to cooperate, can effectively reduce the rotation torque of wheel rotation time and axle sleeve to this seal structure can prevent the entering of the in-process dust of traveling, prolongs the life of inside bearing. The wheel hub generally comprises two groups of rolling bearings which can rotate freely, and when a sweeping mechanism of the sweeper works, the sealing structure of the rolling bearings cannot prevent fine dust from entering the bearings from the outside. In addition, after the damage of the bearing recovered from the test vehicle is confirmed, the main reason for causing the damage of the wheel bearing is found to be that the sealing structure of the bearing can not meet the use requirement of the sweeper, the inside of the bearing is blocked due to the entering of dust, the bearing can not be normally used, and structural elements in the bearing are not damaged. Therefore, the service life of the inner bearing of the wheel hub is prolonged by adding the wheel bearing sealing structure at the two ends of the wheel hub.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wheel bearing seal structure solves the conventional problem that arouses the bearing jamming easily at the cleaning mechanism during operation of street sweeper.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a wheel bearing sealing structure, which comprises a wheel hub sealing end cover and an oil seal clamped in the middle of the wheel hub sealing end cover; the hub sealing end cover is provided with a plurality of reserved mounting holes for mounting on the bearing outer ring, and the hub sealing end cover is tightly attached to the outer vertical surface of the hub.
Further, the hub sealing end cover is of a drumhead structure.
And furthermore, a circular groove for clamping the oil seal is formed in the middle of the hub sealing end cover.
Still further, the hub sealing end cover is manufactured through a plastic suction process.
And furthermore, an oil seal limiting lip is arranged on the extension of the oil seal.
Still further, the oil seal is made of a rubber material with heat resistance and chemical resistance.
Still further, the oil seal is one or more of nitrile rubber, ethylene propylene rubber and hydrogenated nitrile rubber.
Compared with the prior art, the utility model discloses a beneficial technological effect: thereby provide a high leakproofness space for the wheel hub bearing through at wheel hub bearing external mounting wheel hub end cover and oil blanket in this application, reduce the pollution of outside dust to bearing lubricating oil, the inner circle chooses for use the oil blanket can effectively reduce the frictional resistance with the shaft simultaneously, to inner bearing life's extension.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
Fig. 1 is a schematic main body view of the wheel bearing seal structure of the present invention;
FIG. 2 is a schematic view of a cross section of the wheel bearing seal structure of the present invention;
fig. 3 is a schematic structural view of the wheel bearing seal structure of the present invention.
Description of reference numerals:
1. sealing the end cover by the hub; 1a, reserving a mounting hole; 2. oil sealing; 2a and an oil seal limiting lip.
Detailed Description
As shown in fig. 1, the embodiment discloses a wheel bearing sealing structure, which includes a hub sealing end cover 1 and an oil seal 2 clamped in the middle of the hub sealing end cover 1; three reserved mounting holes 1a for mounting on a bearing outer ring are formed in the hub sealing end cover 1, and the hub sealing end cover 1 is tightly attached to the outer vertical surface of the hub; in the embodiment, the hub sealing end cover 1 is manufactured through a plastic suction process, a high-tightness space is provided for a hub bearing, meanwhile, the friction resistance between the inner ring and a wheel shaft can be effectively reduced by selecting an oil seal for the inner ring, and a key effect is achieved on prolonging the service life of an internal bearing.
Referring to fig. 2, in this embodiment, the hub sealing end cover 1 is a drum surface structure, a circular groove for clamping the oil seal 2 is formed in the middle of the hub sealing end cover 1, an oil seal limiting lip 2a is arranged on an extension of the oil seal 2, an inner ring of the oil seal 2 is of an oil seal structure matched with a shaft sleeve, and an outer ring of the oil seal 2 is required to be tightly matched with the hub sealing end cover body.
In this embodiment, hub end cap body 1 closely laminates through three mounting hole and the outer facade of wheel hub, and the middle part is oil blanket 2, and 2 direct joints of oil blanket are in the end cap body, and the oil blanket spacing lip 2a of oil blanket 2 contacts with axle sleeve face with predetermined axial magnitude of interference, when guaranteeing that the oil blanket normally rotates, reduces the wearing and tearing volume of 2 lips portions of oil blanket.
The oil seal 2 is made of rubber materials with heat resistance and chemical resistance, and in specific implementation, the oil seal 2 is made of one or more of nitrile rubber, ethylene propylene rubber and hydrogenated nitrile rubber, so that the service life of the inner bearing can be better protected.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the invention, and are not intended to limit the scope of the invention, and various modifications and improvements made to the technical solution of the invention by those skilled in the art without departing from the spirit of the invention should fall within the protection scope defined by the claims of the invention.
Claims (5)
1. A kind of wheel bearing seal structure, characterized by: the device comprises a hub sealing end cover (1) and an oil seal (2) clamped in the middle of the hub sealing end cover (1); a plurality of reserved mounting holes (1a) used for being mounted on a bearing outer ring are formed in the hub sealing end cover (1), and the hub sealing end cover (1) is tightly attached to the outer vertical surface of the hub.
2. The wheel bearing seal structure according to claim 1, wherein: the hub sealing end cover (1) is of a drumhead structure.
3. The wheel bearing seal structure according to claim 2, wherein: the middle part of the hub sealing end cover (1) is provided with a circular groove for clamping the oil seal (2).
4. The wheel bearing seal structure according to claim 1, wherein: and an oil seal limiting lip (2a) is arranged on the extension of the oil seal (2).
5. The wheel bearing seal structure according to claim 4, wherein: the oil seal (2) is made of rubber materials with heat resistance and chemical resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023216440.0U CN214742803U (en) | 2020-12-28 | 2020-12-28 | Wheel bearing sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023216440.0U CN214742803U (en) | 2020-12-28 | 2020-12-28 | Wheel bearing sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214742803U true CN214742803U (en) | 2021-11-16 |
Family
ID=78635125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023216440.0U Active CN214742803U (en) | 2020-12-28 | 2020-12-28 | Wheel bearing sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214742803U (en) |
-
2020
- 2020-12-28 CN CN202023216440.0U patent/CN214742803U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |