CN205877197U - Wheel hub bearing is with four lip combined seal ring - Google Patents
Wheel hub bearing is with four lip combined seal ring Download PDFInfo
- Publication number
- CN205877197U CN205877197U CN201620721783.7U CN201620721783U CN205877197U CN 205877197 U CN205877197 U CN 205877197U CN 201620721783 U CN201620721783 U CN 201620721783U CN 205877197 U CN205877197 U CN 205877197U
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- Prior art keywords
- lip
- seal
- sealing
- rubber
- sealing lip
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- Expired - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
Abstract
The utility model relates to a wheel hub bearing is with four lip combined seal ring, the sealing washer lid and the L shape rigidity skeleton that are the L shape including the main part, rigidity skeleton and the mutual lock form a rectangle chamber of sealing washer lid main part, it has dustproof retaining ring to extend in the sealing washer lid main part, the rectangle intracavity is equipped with the rubber seal, the rubber seal includes rubber matrix and rubber seal lip, the rubber seal lip includes first seal lip, the second seal lip, third seal lip and fourth seal lip, first seal lip cooperates with the radial inside wall contact seal of sealing washer lid main part, the oblique tilt up of third seal lip extends the axial inside wall contact seal cooperation of just covering the main part with the sealing washer, fourth seal lip and the sealed cooperation in the outer periphery clearance of dustproof retaining ring, the fourth seal lip becomes to lean out to one side the extension from the root to the lip, the second seal lip becomes oblique tilt up from the root to the lip and extends the sealed cooperation of axial medial surface conflict of just covering the main part with the sealing washer. Above -mentioned scheme has the advantage of sealed effectual, low moment of torsion.
Description
Technical field
This utility model relates to mechanically-sealing apparatus technical field, is specifically related to hub bearing four lip combined seal rings.
Background technology
Hub bearing usually with the sealing type bearings of sealing ring, automobile hub unit work under bad environment, is constantly accompanied
With huge shock loading, and operating under vibration operating mode, there is violent heat exchange, substantial amounts of wheel hub failure source in bearing internal external
In the dry of grease and seal failure, the impurity such as muddy water dust enters bearing and shortens the service life of bearing greatly.Warp
Analyzing, main cause is China's existing sealing ring design unreasonable structure, and the magnitude of interference chooses what irrational reason caused.
Summary of the invention
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of good sealing effect, low moment of torsion
Hub bearing with four lip combined seal rings.
For achieving the above object, this utility model provides following technical scheme: a kind of hub bearing is close with four lip combinations
Seal, including sealing ring cover and rigid backbone, rigid backbone cross sectional shape is L-shaped, seals ring cover and includes L-shaped master
Body, rigid backbone mutually fastens formation rectangular cavity with the main body sealing ring cover, seals the radial plate body diameter end axle of ring cover main body
To being extended with dust slinger in rectangular cavity, being provided with rubber seal in rectangular cavity, rubber seal includes investing rigid backbone
On rubber matrix and rubber seal lip, the first sealing lip that described rubber seal lip includes being sequentially arranged from the inside to the outside,
Two sealing lips, the 3rd sealing lip and the 4th sealing lip, described first sealing lip contacts with the radially inner side wall sealing ring cover main body
Sealing and coordinate, the 3rd sealing lip tilts to extend obliquely, and the 3rd sealing lip contacts close with the axially inner side wall sealing ring cover main body
Envelope coordinates, it is characterised in that: described 4th sealing lip coordinates with the outer circumference surface clearance seal of dust slinger, and the described 4th seals
Lip becomes oblique outer incline to extend from root to lip, and described second sealing lip becomes to tilt to extend obliquely to lip from root, and
Second sealing lip is conflicted to seal with the axially inner side face sealing ring cover main body and is coordinated.
By use technique scheme, be positioned at outermost 4th sealing lip and play dustproof effect, the 4th sealing lip and
Dust slinger cooperatively forms good dust-proof effect, matched in clearance between the 4th sealing lip and the dust slinger sealing ring cover, fall
Low rotating torque, under the structure of the second sealing lip, it is possible to reduce the moment of friction of sealing ring.
Preferably, the radial clearance amount between described 4th sealing lip and dust slinger is 0.10-0.25mm, and the 4th seals
Between lip and dust slinger, angle is 14 ° ~ 16 °, and described second sealing lip and the axial magnitude of interference sealed between ring cover are 0.25-
0.45mm, between the second sealing lip and sealing ring cover, angle is 54 ° ~ 56 °, described 3rd sealing lip and the axle sealed between ring cover
Being 0.30-0.50mm to the magnitude of interference, between the 3rd sealing lip and sealing ring cover, angle is 44 ° ~ 46 °.
Preferably, described first sealing lip becomes the oblique lopsidedness axially away from rectangular cavity to extend from root to lip,
First sealing lip and the radial interference amount sealed between ring cover are 0.25-0.40mm, press from both sides between the first sealing lip and sealing ring cover
Angle is 35 ° ~ 37 °.
Preferably, described rigid backbone radially extend plate body external diameter end have be axially distant from sealing ring cover one end tilt
The swash plate portion arranged, swash plate portion is connected with the axially extending plate body of rigid backbone and is formed the cavity of triangle, and described rubber is close
The rubber matrix of sealing has the filled rubber being filled in cavity, and the root of the 4th sealing lip is corresponding with filled rubber position.
Preferably, the gap value between described dust slinger axial end portion and the axial rectangular cavity medial wall of rigid backbone is
0.40-0.80mm。
Preferably, the outer circumference surface of the axially extending plate body end of described rigid backbone is linked with dust seal rubber
Body, dust seal rubber bodies exceeds the outer circumference surface of the axially extending plate body of described rigid backbone.
Preferably, described dust seal rubber bodies radial protrusion amount is 0.20-0.40mm；
Preferably, the outer circumference surface of the axially extending plate body end of described rigid backbone is provided with groove, dust seal rubber
Embed in groove bottom body.
Preferably, the axially extending plate body end of the attached described rigid backbone of described rubber matrix bag, and rubber matrix and institute
State dust seal rubber bodies to be integrally connected.
Below in conjunction with the accompanying drawings this utility model is further described.
Accompanying drawing explanation
Fig. 1 is this utility model specific embodiment hub bearing four lip combined seal ring structural representations；
Fig. 2 is that this utility model specific embodiment hub bearing uses state diagram with four lip combined seal rings.
Detailed description of the invention
See accompanying drawing 1, accompanying drawing 2, a kind of a kind of hub bearing disclosed in this utility model with four lip combined seal rings, including
Sealing ring cover 1 and rigid backbone 2, rigid backbone 2 cross sectional shape is L-shaped, seals ring cover 1 and includes L-shaped main body 11, just
Property skeleton 2 mutually fasten formation rectangular cavity with the main body sealing ring cover 1, the radial plate body diameter end sealing ring cover main body 11 is axial
Being extended with dust slinger 12 in rectangular cavity, be provided with rubber seal 3 in rectangular cavity, rubber seal 3 includes investing rigid bone
Rubber matrix 30 on frame 2 and rubber seal lip, described rubber seal lip includes the first sealing being sequentially arranged from the inside to the outside
Lip the 31, second sealing lip the 32, the 3rd sealing lip 33 and the 4th sealing lip 34, the first sealing lip 31 predominantly grease-proof leakage, the
Two sealing lip 32 major functions are waterproof, and the 3rd sealing lip 33 is for having dustproof and waterproof concurrently, and the 4th sealing lip 34 is the most dust-proof, institute
Stating the first sealing lip 31 and contact sealing cooperation with the radially inner side wall sealing ring cover main body 11, described first sealing lip 31 is from root
Become the oblique lopsidedness axially away from rectangular cavity to extend to lip, can reduce by oils and fats jack-up under the structure of the first sealing lip 31
Risk, have more preferable grease-proof reveal effect, described second sealing lip 32 from root to lip become obliquely tilt extend,
And second sealing lip 32 with seal ring cover main body 11 axially inner side face conflict seal coordinate, the 3rd sealing lip 33 tilts obliquely
Extending, the 3rd sealing lip 33 contact sealing cooperation with the axially inner side wall sealing ring cover main body 11, described 4th sealing lip 34 and
The outer circumference surface clearance seal of dust slinger 12 coordinates, and described 4th sealing lip 34 becomes oblique outer incline to prolong from root to lip
Stretch.Being positioned at outermost 4th sealing lip and play dustproof effect, the 4th sealing lip and dust slinger cooperatively form good dust-proof
Effect, matched in clearance between the 4th sealing lip and the dust slinger sealing ring cover, reduces rotating torque, the structure of the second sealing lip
Under, it is possible to reduce the moment of friction of sealing ring.
For ensureing to reduce under better seal effect premise the moment of friction of sealing ring, use following size design, described
Radial clearance amount A between 4th sealing lip 34 and dust slinger 12 is 0.10-0.25mm, the 4th sealing lip and dust slinger it
Between angle α be 14 ° ~ 16 °, preferably about 15 °, described second sealing lip and the axial magnitude of interference B sealed between ring cover are
0.25-0.45mm, between the second sealing lip and sealing ring cover, angle β is 54 ° ~ 56 °, preferably about 55 °, and the described 3rd seals
Lip and the axial magnitude of interference C sealed between ring cover are 0.30-0.50mm, and between the 3rd sealing lip and sealing ring cover, angle a is 44 °
~ 46 °, preferably about 45 °.Described first sealing lip and radial interference amount D sealed between ring cover are 0.25-0.40mm, the
Between one sealing lip and sealing ring cover, angle b is 35 ° ~ 37 °, preferably about 36 °.
For improving dust-proof effect further, described dust slinger axial end portion and the axial rectangular cavity medial wall of rigid backbone
Between gap value F be 0.40-0.80mm.
For improving sealing reliability when installing, on the outer circumference surface of the axially extending plate body end of described rigid backbone 2
Being linked with dust seal rubber bodies 35, dust seal rubber bodies 35 exceeds the cylindrical of the axially extending plate body of described rigid backbone 2
Side face.So when press-fiting, dust seal rubber bodies has the tensioner after elastic deformation and seals, it is ensured that sealing ring press-fits the most steady
Determine and seal reliable.Selecting described dust seal rubber bodies 35 radial protrusion amount E is 0.20-0.40mm.Wherein, described rigid bone
The outer circumference surface of the axially extending plate body end of frame 2 is provided with groove 21, embeds in groove 21 bottom dust seal rubber bodies 35.Make
Obtain dust seal rubber bodies reliable with rigid backbone adhesion-tight, and improve the rubber thickness of dust seal rubber bodies, improve bullet
Property deformability, improve sealing and firmly installing property.And described rubber matrix 35 wraps axially prolonging of attached described rigid backbone 2
Stretch plate body end, and rubber matrix 30 is integrally connected with described dust seal rubber bodies 35.Dust seal rubber bodies 35 and rubber
Matrix 30 realizes integrated connection, improves rubber adhesive ability, and the axial outer end of skeleton is realized wrapping attached protection by rubber.
It addition, described rigid backbone 2 radially extend plate body external diameter end have be axially distant from sealing ring cover one end tilt
The swash plate portion 22 arranged, swash plate portion 22 is connected and is formed the cavity 23 of triangle with the axially extending plate body of rigid backbone 2, described
The rubber matrix 30 of rubber seal 3 has a filled rubber 301 being filled in cavity 23, the root of the 4th sealing lip 34 with fill out
Fill rubber 301 position corresponding.Under this structure, improve rubber mass and the rubber bond area of rigid backbone corner, improve rubber
Sealing member and the combination reliability of rigid backbone, and improve the rubber mass being connected with the 4th sealing lip, it is ensured that the 4th sealing lip
Intensity, improve service life.
Claims (9)
1. hub bearing is with four lip combined seal rings, including sealing ring cover and rigid backbone, rigid backbone cross sectional shape
For L-shaped, sealing ring cover and include L-shaped main body, rigid backbone and the main body sealing ring cover mutually fasten formation rectangular cavity, close
The radial plate body diameter end of seal lid main body is axially extended with dust slinger in rectangular cavity, is provided with rubber seal in rectangular cavity
Part, rubber seal includes rubber matrix and the rubber seal lip investing in rigid backbone, described rubber seal lip include by
In to the first sealing lip being sequentially arranged outward, the second sealing lip, the 3rd sealing lip and the 4th sealing lip, described first sealing lip with
The radially inner side wall contact sealing ring cover main body seals cooperation, and the 3rd sealing lip tilts to extend obliquely, and the 3rd sealing lip is with close
The axially inner side wall contact of seal lid main body seals and coordinates, it is characterised in that: described 4th sealing lip and the cylindrical of dust slinger
Side face clearance seal coordinates, and described 4th sealing lip becomes oblique outer incline to extend from root to lip, and described second sealing lip is certainly
Root becomes to tilt to extend obliquely to lip, and the second sealing lip is joined with the axially inner side face conflict sealing sealing ring cover main body
Close.
The most according to claim 1, hub bearing is with four lip combined seal rings, it is characterised in that: described 4th sealing lip is with anti-
Radial clearance amount between dirt back-up ring is 0.10-0.25mm, and between the 4th sealing lip and dust slinger, angle is 14 ° ~ 16 °, institute
State the second sealing lip and the axial magnitude of interference sealed between ring cover is 0.25-0.45mm, between the second sealing lip and sealing ring cover
Angle is 54 ° ~ 56 °, and described 3rd sealing lip and the axial magnitude of interference sealed between ring cover are 0.30-0.50mm, and the 3rd seals
Between lip and sealing ring cover, angle is 44 ° ~ 46 °.
Hub bearing the most according to claim 1 or claim 2 is with four lip combined seal rings, it is characterised in that: described first sealing lip
The oblique lopsidedness axially away from rectangular cavity is become to extend from root to lip, the first sealing lip and the radial direction sealed between ring cover
The magnitude of interference is 0.25-0.40mm, and between the first sealing lip and sealing ring cover, angle is 35 ° ~ 37 °.
The most according to claim 1, hub bearing is with four lip combined seal rings, it is characterised in that: the radial direction of described rigid backbone
Extension board body diameter end has the swash plate portion that is obliquely installed, ring cover one end that seals that is axially distant from, the axle of swash plate portion and rigid backbone
Connecting and formed the cavity of triangle to extending plate body, the rubber matrix of described rubber seal has filling out of being filled in cavity
Filling rubber, the root of the 4th sealing lip is corresponding with filled rubber position.
The most according to claim 1, hub bearing is with four lip combined seal rings, it is characterised in that: described dust slinger axial end
Gap value between portion and the axial rectangular cavity medial wall of rigid backbone is 0.40-0.80mm.
The most according to claim 1, hub bearing is with four lip combined seal rings, it is characterised in that: described rigid backbone axial
Extending and be linked with dust seal rubber bodies on the outer circumference surface of plate body end, dust seal rubber bodies exceeds described rigid backbone
The outer circumference surface of axially extending plate body.
The most according to claim 6, hub bearing is with four lip combined seal rings, it is characterised in that: described dust seal rubber bodies
Radial protrusion amount is 0.20-0.40mm.
8. according to hub bearing described in claim 6 or 7 with four lip combined seal rings, it is characterised in that: described rigid backbone
The outer circumference surface of axially extending plate body end is provided with groove, embeds in groove bottom dust seal rubber bodies.
9. according to hub bearing described in claim 6 or 7 with four lip combined seal rings, it is characterised in that: described rubber matrix bag
The axially extending plate body end of attached described rigid backbone, and rubber matrix is integrally connected with described dust seal rubber bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721783.7U CN205877197U (en) | 2016-07-06 | 2016-07-06 | Wheel hub bearing is with four lip combined seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721783.7U CN205877197U (en) | 2016-07-06 | 2016-07-06 | Wheel hub bearing is with four lip combined seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205877197U true CN205877197U (en) | 2017-01-11 |
Family
ID=57696106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620721783.7U Expired - Fee Related CN205877197U (en) | 2016-07-06 | 2016-07-06 | Wheel hub bearing is with four lip combined seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205877197U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373563A (en) * | 2018-11-08 | 2019-02-22 | 珠海格力电器股份有限公司 | Drain pipe sealing assembly and air conditioner |
| CN109469728A (en) * | 2017-09-08 | 2019-03-15 | Nok株式会社 | Dust cover |
| CN110594299A (en) * | 2019-09-25 | 2019-12-20 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Integrated anti-falling high-sealing combined sealing ring |
| CN111664253A (en) * | 2019-03-08 | 2020-09-15 | 舍弗勒技术股份两合公司 | Sealing device and in-wheel motor driving system |
| CN111895095A (en) * | 2019-05-06 | 2020-11-06 | 舍弗勒技术股份两合公司 | Seal assembly |
| WO2021196719A1 (en) * | 2020-04-03 | 2021-10-07 | 深圳市大疆创新科技有限公司 | Connecting assembly, connecting device, and unmanned aerial vehicle |
| CN113864344A (en) * | 2021-09-13 | 2021-12-31 | 人本股份有限公司 | Hub inner seal assembly and method |
| WO2023035167A1 (en) * | 2021-09-09 | 2023-03-16 | 舍弗勒技术股份两合公司 | Sealing structure, inner wheel drive system and assembly method |
-
2016
- 2016-07-06 CN CN201620721783.7U patent/CN205877197U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469728A (en) * | 2017-09-08 | 2019-03-15 | Nok株式会社 | Dust cover |
| US11149784B2 (en) | 2017-09-08 | 2021-10-19 | Nok Corporation | Dust cover |
| CN109373563A (en) * | 2018-11-08 | 2019-02-22 | 珠海格力电器股份有限公司 | Drain pipe sealing assembly and air conditioner |
| CN111664253A (en) * | 2019-03-08 | 2020-09-15 | 舍弗勒技术股份两合公司 | Sealing device and in-wheel motor driving system |
| CN111664253B (en) * | 2019-03-08 | 2024-02-02 | 舍弗勒技术股份两合公司 | Sealing device and in-wheel motor driving system |
| CN111895095A (en) * | 2019-05-06 | 2020-11-06 | 舍弗勒技术股份两合公司 | Seal assembly |
| CN110594299A (en) * | 2019-09-25 | 2019-12-20 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Integrated anti-falling high-sealing combined sealing ring |
| WO2021196719A1 (en) * | 2020-04-03 | 2021-10-07 | 深圳市大疆创新科技有限公司 | Connecting assembly, connecting device, and unmanned aerial vehicle |
| WO2023035167A1 (en) * | 2021-09-09 | 2023-03-16 | 舍弗勒技术股份两合公司 | Sealing structure, inner wheel drive system and assembly method |
| CN113864344A (en) * | 2021-09-13 | 2021-12-31 | 人本股份有限公司 | Hub inner seal assembly and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170111 Termination date: 20170706 |