CN206309787U - A kind of hub-bearing unit - Google Patents
A kind of hub-bearing unit Download PDFInfo
- Publication number
- CN206309787U CN206309787U CN201621402721.6U CN201621402721U CN206309787U CN 206309787 U CN206309787 U CN 206309787U CN 201621402721 U CN201621402721 U CN 201621402721U CN 206309787 U CN206309787 U CN 206309787U
- Authority
- CN
- China
- Prior art keywords
- ring
- wheel hub
- sealing
- lip
- hub
- 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
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- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a kind of hub-bearing unit, include ring flange, ring flange outside is provided with wheel hub outer ring and the wheel hub inner ring being engaged, steel ball is equipped with by retainer between the wheel hub outer ring and wheel hub inner ring, the ring flange end is provided with sealing ring, the sealing ring includes L-shaped metal interior skeleton and flexible multi-lip seal structure, the flexible multi-lip seal structure root is embedded in metal interior skeleton and is fixedly connected with metal interior skeleton, the lip of the flexible multi-lip seal structure is pushed against in ring flange, the metal interior skeleton is pushed against in wheel hub outer ring back to flexible multi-lip seal structure one end, the metal interior skeleton corner is installed with rubber ring, the rubber ring is pushed against in wheel hub outer ring.Make sealing ring while having preferable sealing and thermal diffusivity, when bearing rotates at a high speed, with the ability for efficiently resisting outside mud, dust, also can effectively prevent lubricating grease leakage.
Description
Technical field
The utility model is related to auto parts machinery field, and in particular to a kind of hub-bearing unit.
Background technology
It is that one kind can receive the special large-scale and extra large size bearing seat of combined load, construction that bearing block draws, and it has structure
The features such as making compact, sensitive revolution, convenience for device maintenance；The automobile hub bearing that oneself knows is essentially all using in bearing
Outer collar and inside and outside ring flange Split type structure form, are then assembled, and bearing ball loads in retainer, inserts lubricating grease,
Assembled with rubber seal rubber sealing bearing internal external lasso both sides.
The Chinese patent of Publication No. CN202040224U discloses a kind of hub bearing list of tape spool bearing seat riveted edge gear hobbing
Unit, including bearing block, are provided with inner ring and outer ring inside bearing block, retainer is provided between inner ring and outer ring, and retainer is provided with
Steel ball, bearing block is provided with the adpting flange of integral type, and bearing block outer surface is provided with riveting side the two ends of step, inner ring and outer ring
Between be designed with sealing ring.It is integral with the bearing block set of wheel hub by adpting flange, wheel hub bearing unit is constituted, though
So cause that wheel hub is overall more firm.
The shortcoming of the patent is：The sealing ring that this hub-bearing unit is used is excessively simple, and automobile is when in use, grey
Dirt, muddy water are easily accessible the inside of bearing unit, and leakage fat rate is higher, so that moment of friction increases, inner ring grinds with outer ring
Damage excessive, cause that the life-span of product is shorter, automobile energy consumption is larger.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of effective reduction dust
The impurity such as grain, muddy water enter inside hub bearing, and then improve the automobile hub bearing of hub bearing sealing property.
To achieve the above object, the utility model provides following technical scheme：
A kind of hub-bearing unit, includes ring flange, and ring flange outside is provided with wheel hub outer ring and the wheel hub being engaged
Inner ring, steel ball is equipped between the wheel hub outer ring and wheel hub inner ring by retainer, and the ring flange end is provided with sealing ring,
The sealing ring includes L-shaped metal interior skeleton and flexible multi-lip seal structure, and the flexible multi-lip seal structure root is embedding
It is fixedly connected in metal interior skeleton and with metal interior skeleton, the lip of the flexible multi-lip seal structure is pushed against in flange
Disk, the metal interior skeleton is pushed against in wheel hub outer ring, the metal interior skeleton corner back to flexible multi-lip seal structure one end
Rubber ring is installed with, the rubber ring is pushed against in wheel hub outer ring.
By using above-mentioned technical proposal, flexible multi-lip seal structure and rubber ring can ensure that outside sealing ring two ends and wheel hub
Circle and ring flange are in interference fit, and when bearing is rotated at a high speed, bearing has the ability for efficiently resisting outside mud, dust,
Also can effectively reduce lubricating grease leakage, improve the requirements for life of hub-bearing unit, reach the effect work for effectively improving sealing
With.And metal interior skeleton has preferable thermal diffusivity, while ensure that sealing effectiveness, the heat for also making ball be produced when rotating
Amount can be delivered to outside bearing by metal interior skeleton, so that the bearing has preferable thermal diffusivity, improve the use longevity of bearing
Life.
It is of the present utility model to be further arranged to：The corner of the metal interior skeleton is set in circular arc, the rubber ring
The rectangular triangle in section and the contact surface of rubber ring and metal interior skeleton is in circular arc, the right-angle side of the rubber ring is pushed against
In wheel hub outer ring.
By using above-mentioned technical proposal, so as to increase the contact area between metal interior skeleton and rubber ring, so that
Make between metal interior skeleton and rubber ring connect it is even closer.And the contact area of rubber ring and wheel hub outer ring is increased, it is
Sealing ring has better seal effect to bearing.
It is of the present utility model to be further arranged to：The rubber ring opposing metallic inner frame side is provided with fixed lobe, institute
State metal interior skeleton and be provided with fixing groove with respect to rubber ring side, the fixed lobe is embedded in fixing groove and was in fixing groove
It is full of cooperation.
By using above-mentioned technical proposal, metal interior skeleton and rubber ring contact area are increased, while fixing groove is to solid
Determining projection has a spacing power, makes that metal interior skeleton and rubber ring are more stable to be combined together.
It is of the present utility model to be further arranged to：The wheel hub outer ring is provided with sealing bulge loop with respect to ring flange side, described
Sealing bulge loop both sides are provided with spigot surface, and the metal interior skeleton is pushed against in sealing bulge loop, and the rubber ring is pushed against in wheel hub outer ring.
By using above-mentioned technical proposal, metal interior skeleton when installing between wheel hub outer ring and ring flange, spigot surface
There is a guiding force to metal interior skeleton, so that metal interior skeleton can be snapped in more easily between wheel hub outer ring and ring flange.
It is of the present utility model to be further arranged to：The multi-lip seal structure include the first sealing lip, the second sealing lip and
3rd sealing lip, first sealing lip, the second sealing lip and the 3rd sealing lip are pushed against in ring flange outer wall, and described first is close
The first cavity is formed between envelope lip and the second sealing lip, the second cavity is formed between second sealing lip and the 3rd sealing lip.
By using above-mentioned technical proposal, the first cavity and the second cavity can play the effect for buffering twice, so that grey
Dirt or mud need to enter the first cavity and the second cavity can just be entered between wheel hub inner ring and wheel hub outer ring, so that the sealing
Circle has the ability for preferably resisting outside mud, dust.Also lubricating grease leakage can be effectively reduced, hub-bearing unit is improved
Requirements for life.
It is of the present utility model to be further arranged to：3rd sealing lip is provided with for by flexible multi-lip seal Structural lock
Tightly in the resilient latching member of ring flange.
By using above-mentioned technical proposal, flexible multi-lip seal is lock onto on ring flange by resilient latching member.Work as axle
When holding rotation at a high speed, the stability that flexible multi-lip seal is installed on ring flange is improved, so as to improve sealing ring to bearing
Sealing.
It is of the present utility model to be further arranged to：The gear inconsistent with wheel hub inner ring end face is provided with the ring flange
Ring.
By using above-mentioned technical proposal, baffle ring has a spacing power for axial direction to wheel hub inner ring, so that wheel hub inner ring
It is more stable on ring flange.
It is of the present utility model to be further arranged to：The annular notches for clamping baffle ring are provided with the ring flange,
The baffle ring is arranged in the annular notches and ring flange clamping.
By using above-mentioned technical proposal, annular notches have a spacing power to baffle ring, so as to improve ring flange and baffle ring
Stability during clamping.
It is of the present utility model to be further arranged to：The steel ball is provided with least two row, between the adjacent two row steel balls
Fill in glossy consistent lubricant.
By using above-mentioned technical proposal, make to form one layer thin between ball and wheel hub inner ring and ball and wheel hub outer ring
Thin oil film, to prevent metal and metal directly contact, so as to reduce Bearing inner friction and abrasion, prevents from burning viscous, extending shaft
Hold the life-span.
The utility model has advantages below：Employ metal interior skeleton and many lip rubber seal knots with rubber ring
Structure, makes sealing ring while having preferable sealing and thermal diffusivity, when bearing rotates at a high speed, with efficiently resisting outside mud
Slurry, the ability of dust, also can effectively prevent lubricating grease leakage, meet the requirements for life of hub-bearing unit, reach sealing
Effect.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the enlarged drawing at B in Fig. 1.
Reference：1st, ring flange；2nd, wheel hub outer ring；3rd, wheel hub inner ring；4th, retainer；5th, steel ball；6th, interior raceway；7th, it is outer
Raceway；8th, raceway groove；9th, baffle ring；10th, annular notches；11st, bulge loop is sealed；12nd, spigot surface；13rd, sealing ring；14th, in metal
Skeleton；15th, flexible multi-lip seal structure；15.1st, the first sealing lip；15.2nd, the second sealing lip；15.3rd, the 3rd sealing lip；
15.4th, lip is connected；16th, rubber ring；17th, fixed lobe；18th, fixing groove；19th, the first cavity；20th, the second cavity；21st, annular is held
Receive groove；22nd, resilient latching member.
Specific embodiment
The utility model is described further referring to the drawings.
As shown in figure 1, a kind of hub-bearing unit, including ring flange 1, the wheel hub outer ring 2 that is arranged on ring flange 1 and wheel
Hub inner ring 3, the retainer 4 being arranged between wheel hub outer ring 2 and wheel hub inner ring 3 and the steel ball 5 being arranged on retainer 4.
As shown in figure 1, wherein, steel ball 5 is provided with interior raceway 6, outside wheel hub at least provided with two row on wheel hub inner ring 3
Circle 2 is provided with outer raceway 7, and interior raceway 6 and outer raceway 7 form the raceway groove 8 rolled for steel ball 5, and retainer 4 is arranged at rolling
In road groove 8.Glossy consistent lubricant is filled between adjacent two row steel ball 5.
As depicted in figs. 1 and 2, one end of ring flange 1 is provided with the baffle ring 9 inconsistent with the end face of wheel hub inner ring 3, together
When annular notches 10 for clamping baffle ring 9 are provided with ring flange 1, baffle ring 9 is embedded in annular notches 10 and ring flange 1
Clamping.Baffle ring 9 is clip.When mounted, first the diameter of baffle ring 9 is expanded, then after being socketed on ring flange 1, self-return
It is clamped in the effect on ring flange 1.
As shown in figure 3, wheel hub outer ring 2 is provided with sealing bulge loop 11 with respect to the side of ring flange 1, sealing bulge loop 11 both sides are provided with leads
To face 12.
As shown in figures 1 and 3, sealing ring 13 is provided with back to the one end of baffle ring 9 in ring flange 1, sealing ring 13 includes L-shaped
Metal interior skeleton 14 and flexible multi-lip seal structure 15.As shown in figure 3, the corner of metal interior skeleton 14 is set in circular arc.Gold
The corner for belonging to inner frame 14 is installed with rubber ring 16, in the rectangular triangle in section and rubber ring 16 and metal of rubber ring 16
The contact surface of skeleton 14 is in circular arc.The side of 16 opposing metallic inner frame of rubber ring 14 is provided with fixed lobe 17, metal interior skeleton
The 14 relative sides of rubber ring 16 are provided with fixing groove 18, and fixed lobe 17 is embedded in fixing groove 18 and matches somebody with somebody in interference with fixing groove 18
Close.The right-angle side of rubber ring 16 is pushed against in wheel hub outer ring 2, and metal interior skeleton 14 is pushed against in sealing bulge loop 11.
As shown in figure 3, the flexible root of multi-lip seal structure 15 be embedded in metal interior skeleton 14 and with metal interior skeleton 14
It is fixedly connected.Multi-lip seal structure includes the first sealing lip 15.1, the second sealing lip 15.2, the 3rd sealing lip 15.3 and connection lip
15.4.Connection lip 15.4 is embedded in metal interior skeleton 14, and connection lip 15.4 is in interference fit with metal interior skeleton 14, so that
Flexible multi-lip seal structure 15 is in be fixedly connected with metal interior skeleton 14.First sealing lip 15.1, the second sealing lip 15.2 and
Three sealing lips 15.3 are pushed against in the outer wall of ring flange 1, and are in interference fit with ring flange 1.First sealing lip 15.1 and second is close
The first cavity 19 is formed between envelope lip 15.2, the second cavity 20 is formed between the second sealing lip 15.2 and the 3rd sealing lip 15.3.
As shown in figure 3, offering annular receiving groove 21 on the 3rd sealing lip 15.3, it is provided with annular receiving groove 21 for inciting somebody to action
Flexible multi-lip seal structure 15 lock onto the resilient latching member 22 of ring flange 1.Resilient latching member 22 is turn, and elastic locking
Part 22 is socketed in annular receiving groove 21, reaches effect of the flexible multi-lip seal structure 15 in interference fit with ring flange 1.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (9)
1. a kind of hub-bearing unit, includes ring flange（1）, ring flange（1）Outside is provided with wheel hub outer ring（2）And be engaged
Wheel hub inner ring（3）, the wheel hub outer ring（2）With wheel hub inner ring（3）Between pass through retainer（4）It is equipped with steel ball（5）, it is described
Ring flange（1）End is provided with sealing ring（13）, it is characterized in that：The sealing ring（13）Including L-shaped metal interior skeleton（14）
With flexible multi-lip seal structure（15）, the flexible multi-lip seal structure（15）Root is embedded at metal interior skeleton（14）It is interior and with
Metal interior skeleton（14）It is fixedly connected, the flexible multi-lip seal structure（15）Lip push against in ring flange（1）, the metal
Inner frame（14）Back to flexible multi-lip seal structure（15）One end is pushed against in wheel hub outer ring（2）, the metal interior skeleton（14）Turn
Rubber ring is installed with angle（16）, the rubber ring（16）Push against in wheel hub outer ring（2）.
2. a kind of hub-bearing unit according to claim 1, it is characterized in that：The metal interior skeleton（14）Corner
Set in circular arc, the rubber ring（16）The rectangular triangle in section and rubber ring（16）With metal interior skeleton（14）Contact
Face is in circular arc, the rubber ring（16）Right-angle side push against in wheel hub outer ring（2）.
3. a kind of hub-bearing unit according to claim 2, it is characterized in that：The rubber ring（16）Opposing metallic in-seam
Frame（14）Side is provided with fixed lobe（17）, the metal interior skeleton（14）With respect to rubber ring（16）Side is provided with fixing groove
（18）, the fixed lobe（17）It is embedded at fixing groove（18）Interior and and fixing groove（18）In interference fit.
4. a kind of hub-bearing unit according to claim 3, it is characterized in that：The wheel hub outer ring（2）With respect to ring flange
（1）Side is provided with sealing bulge loop（11）, the sealing bulge loop（11）Both sides are provided with spigot surface（12）, the metal interior skeleton（14）
Push against in sealing bulge loop（11）, the rubber ring（16）Push against in wheel hub outer ring（2）.
5. a kind of hub-bearing unit according to claim 4, it is characterized in that：The multi-lip seal structure includes that first is close
Envelope lip（15.1）, the second sealing lip（15.2）With the 3rd sealing lip（15.3）, first sealing lip（15.1）, the second sealing lip
（15.2）With the 3rd sealing lip（15.3）Push against in ring flange（1）Outer wall, first sealing lip（15.1）With the second sealing
Lip（15.2）Between form the first cavity（19）, second sealing lip（15.2）With the 3rd sealing lip（15.3）Between form
Two cavitys（20）.
6. a kind of hub-bearing unit according to claim 5, it is characterized in that：3rd sealing lip（15.3）It is provided with
For by flexible multi-lip seal structure（15）It lock onto ring flange（1）Resilient latching member（22）.
7. a kind of hub-bearing unit according to claim 6, it is characterized in that：The ring flange（1）On be provided with and wheel
Hub inner ring（3）The inconsistent baffle ring of end face（9）.
8. a kind of hub-bearing unit according to claim 7, it is characterized in that：In the ring flange（1）On be provided with use
In clamping baffle ring（9）Annular notches（10）, the baffle ring（9）It is arranged at the annular notches（10）Interior and ring flange（1）Card
Connect.
9. a kind of hub-bearing unit according to claim 8, it is characterized in that：The steel ball（5）At least two row are provided with,
The adjacent two row steel ball（5）Between fill in glossy consistent lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402721.6U CN206309787U (en) | 2016-12-20 | 2016-12-20 | A kind of hub-bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402721.6U CN206309787U (en) | 2016-12-20 | 2016-12-20 | A kind of hub-bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206309787U true CN206309787U (en) | 2017-07-07 |
Family
ID=59251959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621402721.6U Expired - Fee Related CN206309787U (en) | 2016-12-20 | 2016-12-20 | A kind of hub-bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206309787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989997A (en) * | 2019-04-22 | 2019-07-09 | 西安航空职业技术学院 | A kind of flange bearing |
| CN116989065A (en) * | 2023-09-27 | 2023-11-03 | 万向钱潮股份公司 | Sealing assembly for bearing and hub bearing |
-
2016
- 2016-12-20 CN CN201621402721.6U patent/CN206309787U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989997A (en) * | 2019-04-22 | 2019-07-09 | 西安航空职业技术学院 | A kind of flange bearing |
| CN116989065A (en) * | 2023-09-27 | 2023-11-03 | 万向钱潮股份公司 | Sealing assembly for bearing and hub bearing |
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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 |
Granted publication date: 20170707 Termination date: 20191220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |