CN201348041Y - Wheel hub bearing dust-proof sealing device - Google Patents
Wheel hub bearing dust-proof sealing device Download PDFInfo
- Publication number
- CN201348041Y CN201348041Y CNU2008201814524U CN200820181452U CN201348041Y CN 201348041 Y CN201348041 Y CN 201348041Y CN U2008201814524 U CNU2008201814524 U CN U2008201814524U CN 200820181452 U CN200820181452 U CN 200820181452U CN 201348041 Y CN201348041 Y CN 201348041Y
- Authority
- CN
- China
- Prior art keywords
- hub bearing
- transmission shaft
- wheel hub
- knuckle
- sealing device
- Prior art date
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000000428 dust Substances 0.000 claims description 19
- 238000007514 turning Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Images
Abstract
The utility model relates to a wheel hub bearing dust-proof sealing device which comprises a transmission shaft, a steering knuckle and a wheel hub bearing; a labyrinth-shaped sealing gap is formed on bosses of the transmission shaft and the steering knuckle; and the labyrinth-shaped sealing gap consists of a plurality of corners. The corners are in 90 degrees. A vent sump is added below the steering knuckle. The roles of dust-proofing and sealing are played to the wheel hub bearing by processing a plurality of bosses on the transmission shaft and the steering knuckle to form the labyrinth-shaped sealing gap and adding the vent sump below the steering knuckle; and meanwhile, the wheel hub bearing dust-proof sealing device does not need any extra part, has the advantages of simple and reliable manufacturing process, no need of maintenance and low cost, and can effectively discharge harmful sewage entering the installation surface of the wheel hub bearing.
Description
Technical field
The utility model relates to a kind of hub bearing dust sealing device, especially automobile hub bearing dust sealing device.
Background technique
Vehicle is in traveling process, and hub bearing more or less can be subjected to the erosion of environmental contaminants, and at present, in known technology, the akin patented technology of automobile hub bearing dust sealing device has: CN200720038398.3 and CN200620010001.5.
CN200720038398.3 patent name wherein: hub bearing dust guard, its technical characteristics mainly is to comprise knuckle and transmission shaft, be respectively equipped with knuckle back-up ring, transmission shaft back-up ring on knuckle and the transmission shaft, between described knuckle back-up ring and transmission shaft back-up ring, be provided with the seal ring that sulfuration is connected with knuckle back-up ring elasticity on the transmission shaft back-up ring.
But its shortcoming is: need on knuckle and transmission shaft, increase by four component, and its mechanism's complexity, precision control difficulty is bigger, needs the long-term maintenance seal ring of changing, and the pollution that enters the hub bearing attachment face is with the long-term pollution bearing etc.
Another CN200620010001.5 title: the seal arrangement of automobile hub bearing, its technical characteristics mainly be it by transmission shaft, the wheel hub that links to each other with transmission shaft, be sleeved on the hub bearing on the wheel hub and the knuckle that is coupled on the hub bearing is formed, the hub bearing hole that an O-ring seal and knuckle are set on transmission shaft is Spielpassung, and the diameter of O-ring seal is greater than the diameter in hub bearing hole on the knuckle.
Its shortcoming is: need on transmission shaft, increase by the seal ring that goes in ring, and seal ring and transmission shaft step interference fit, its magnitude of interference is difficult to control, and requires height higher to accuracy of manufacturing, and the pollution that enters the hub bearing attachment face is with the long-term pollution bearing etc.
The model utility content
The utility model has designed a kind of hub bearing dust sealing device, and it has realized under situation about not changing the hub bearing sealing effect, and the optimization by structure effectively reduces effects such as manufacture cost.
In order to solve the technical problem of above-mentioned existence, the utility model has adopted following scheme:
A kind of hub bearing dust sealing device comprises transmission shaft, knuckle and hub bearing, is processed to form labyrinth shape sealing air gap on the boss of described transmission shaft and described knuckle, and described labyrinth shape sealing air gap is formed by a plurality of turnings.Described turning is 90 degree.Below described knuckle, increase and let out dirty groove.Below described knuckle, increase and let out dirty groove bottom and horizontal plane forms an angle of inclination.
This hub bearing dust sealing device compared with prior art, have following beneficial effect: the utility model makes to cooperate by the some boss of processing on transmission shaft and knuckle and forms labyrinth shape sealing air gap, and dirty groove is let out in increase below knuckle, reaches the dust sealing effect to hub bearing; Need not simultaneously increases any component, and manufacturing process is simple and reliable, and Maintenance free is with low cost, and can effectively discharge the harmful pollution that enters the hub bearing attachment face.
Description of drawings
Fig. 1: the structural representation of a kind of hub bearing dust sealing of the utility model device;
Fig. 2: the labyrinth shape blanket gas gap structure enlarged view of a kind of hub bearing dust sealing of the utility model device;
Fig. 3: a kind of hub bearing dust sealing of the utility model device let out dirty groove position view;
Fig. 4: the dustproof and waterproof work schematic representation of a kind of hub bearing dust sealing of the utility model device.
Description of reference numerals:
The 1-transmission shaft; The 2-knuckle; The 3-hub bearing; 4-labyrinth shape air gap; The 5-turning; The 6-turning; The 7-turning; 8-lets out dirty groove; The 9-solid impurity; The 10-liquid impurities.
Embodiment
Below in conjunction with Fig. 1 to Fig. 4, the utility model is described further:
A kind of hub bearing dust sealing device comprises transmission shaft 1, knuckle 2 and hub bearing 3, is processed to form labyrinth shape sealing air gap 4 on the boss of described transmission shaft 1 and described knuckle 2, and described labyrinth shape sealing air gap 4 is formed by a plurality of turnings 5,6,7.Described turning 5,6,7 is 90 degree.Below described knuckle, increase and let out dirty groove 8.Below described knuckle 2, increase and let out dirty groove 8 bottoms and horizontal plane forms an angle of inclination.
Vehicle is in traveling process, hub bearing more or less can be subjected to the erosion of environmental contaminants, in order to reduce this pollution speed and degree, on transmission shaft and knuckle, boss is set, to slow down the invasion of pollutant, crooked labyrinth shape air gap 4 forms above turning 5,6,7, three places, can directly stop straight-line splash directly to enter the hub bearing space of planes, air gap is more little, allows the particulate matter diameter that enters just more little.
Shown in Fig. 4 four, solid impurity that major diameter is splashed such as sand rebound at the transmission shaft that first 5 places, turning directly are rotated, less sandstone also need be broken through second turning 6 and the 3rd turning 7 after entering first turning, these sandstone are after entering labyrinth shape air gap 4, constantly under the knocking of the transmission shaft 1 that rotates, all may be returned at each 5,6,7 place, turning, even enter into the hub bearing attachment face, under action of gravity, also can be focused on the knuckle below and be let out dirty groove 8 places, can not caused too big pollution hub bearing 3.
Same labyrinth shape air gap 4 also has a dispersion for direct projection is water stain, the effect of water conservancy diversion, what enter labyrinth shape air gap 4 is water stainly promptly scattered on the knuckle 2 by transmission shaft 1 rotation centripetal force effect, knuckle labyrinth opening is outside, having the water stain of certain speed so just can be reflected out when entering labyrinth shape air gap 4, what a little entered is water stain along letting out in the dirty groove 8 below the inflow under the effect of knuckle 2 at gravity, let out dirty groove 8 and designed certain flare angle, can well the water stain discharge that enter hub bearing 3 attachment faces on a small quantity will be reached in the labyrinth shape air gap 4, and enter water stain also can to attached to each the neck parts surface dust clear up, labyrinth shape air gap 4 and hub bearing 3 attachment faces are kept clean.
Claims (4)
1, a kind of hub bearing dust sealing device, comprise transmission shaft (1), knuckle (2) and hub bearing (3), it is characterized in that: be processed to form labyrinth shape sealing air gap (4) on the boss of described transmission shaft (1) and described knuckle (2), described labyrinth shape sealing air gap (4) is formed by a plurality of turnings (5,6,7).
2, a kind of hub bearing dust sealing device according to claim 1 is characterized in that: described turning (5,6,7) are 90 degree.
3, a kind of hub bearing dust sealing device according to claim 1 is characterized in that: increase below described knuckle and let out dirty groove (8).
4, a kind of hub bearing dust sealing device according to claim 1 is characterized in that: let out dirty groove (8) bottom in the increase of the below of described knuckle (2) and form an angle of inclination with horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201814524U CN201348041Y (en) | 2008-12-22 | 2008-12-22 | Wheel hub bearing dust-proof sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201814524U CN201348041Y (en) | 2008-12-22 | 2008-12-22 | Wheel hub bearing dust-proof sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348041Y true CN201348041Y (en) | 2009-11-18 |
Family
ID=41367509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201814524U Expired - Fee Related CN201348041Y (en) | 2008-12-22 | 2008-12-22 | Wheel hub bearing dust-proof sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348041Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953731A (en) * | 2014-04-26 | 2014-07-30 | 中国第一汽车股份有限公司 | End-face labyrinth static sealing structure |
| CN104500752A (en) * | 2014-12-22 | 2015-04-08 | 重庆长安汽车股份有限公司 | Dust prevention component of automobile hub bearing |
| CN106402340A (en) * | 2016-09-30 | 2017-02-15 | 广西柳工机械股份有限公司 | Drive axle wheel reductor hub seal structure |
| CN107882994A (en) * | 2017-12-14 | 2018-04-06 | 徐州科源液压股份有限公司 | Vehicle bridge wheel side dust-proof sealing structure |
| CN110872856A (en) * | 2018-08-31 | 2020-03-10 | 纳博特斯克有限公司 | Drive device, work machine, and flange |
-
2008
- 2008-12-22 CN CNU2008201814524U patent/CN201348041Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953731A (en) * | 2014-04-26 | 2014-07-30 | 中国第一汽车股份有限公司 | End-face labyrinth static sealing structure |
| CN103953731B (en) * | 2014-04-26 | 2016-03-16 | 中国第一汽车股份有限公司 | End face labyrinth static seal structure |
| CN104500752A (en) * | 2014-12-22 | 2015-04-08 | 重庆长安汽车股份有限公司 | Dust prevention component of automobile hub bearing |
| CN106402340A (en) * | 2016-09-30 | 2017-02-15 | 广西柳工机械股份有限公司 | Drive axle wheel reductor hub seal structure |
| CN107882994A (en) * | 2017-12-14 | 2018-04-06 | 徐州科源液压股份有限公司 | Vehicle bridge wheel side dust-proof sealing structure |
| CN110872856A (en) * | 2018-08-31 | 2020-03-10 | 纳博特斯克有限公司 | Drive device, work machine, and flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20131222 |