CN106394115B - A kind of sealing structure of automobile hub bearing and drive shaft - Google Patents
A kind of sealing structure of automobile hub bearing and drive shaft Download PDFInfo
- Publication number
- CN106394115B CN106394115B CN201611045501.7A CN201611045501A CN106394115B CN 106394115 B CN106394115 B CN 106394115B CN 201611045501 A CN201611045501 A CN 201611045501A CN 106394115 B CN106394115 B CN 106394115B
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- CN
- China
- Prior art keywords
- drive shaft
- sealing
- metal bone
- knuckle
- sealing ring
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
Abstract
The present invention relates to the sealing structures of a kind of automobile hub bearing and drive shaft, including drive shaft, knuckle and the hub bearing being successively sequentially connected, the hub bearing is arranged inside the knuckle, so as to surround an installation space between the hub bearing, the knuckle and the drive shaft, further includes: be equipped with knuckle side-sealing device and drive shaft side sealing device in the installation space.In the drive shaft turns, the drive shaft side sealing device is in sliding wear state with the drive shaft turns, the knuckle side-sealing device and the drive shaft.The present invention can solve existing hub bearing and drive shaft and generate gap variation in vehicle movement stress, easily makes the grease proofing and bad problem of dust-proof effect, improves the service life of automobile component.
Description
Technical field
The present invention relates to the sealing knots of technical field of automobile parts more particularly to a kind of automobile hub bearing and drive shaft
Structure.
Background technique
In the prior art, wheel hub installation on the driving shaft, is provided with axis between the inner wall and drive shaft at the wheel hub rear portion
It holds, the installation space for a sealing device of encircling a city between bearing, drive shaft and wheel hub, the installation space is standing to set sealing
Circle.But when due to vehicle movement, seal clearance can change, and easily reduce sealing effect, be easily accessible dust, influence vehicle
The normal rotation of wheel.As shown in Figure 1, existing dust-proof scheme is to be equipped with a mud guard 4, dress in bearing 2 and 5 junction of drive shaft
Pressing force is generated with rear drive shaft 5 and ring flange 1, fills up mud guard 4 by the gap between bearing 2 and drive shaft 5, to rise
To certain dustproof effect.This sealing structure due between bearing 2 and drive shaft 5 gap and mud guard 4 be parastate,
It will lead to gap in vehicle movement loading process to change, therefore mud guard 4 not can guarantee and remain and fill up gap, it is dust-proof
Effect is bad, meanwhile, the liquid substances such as dust and oil liquid can be penetrated by the gap between knuckle 3 and drive shaft 5 to inside zero
Part causes to corrode, and influences the service life of part.
Summary of the invention
The present invention provides the sealing structure of a kind of automobile hub bearing and drive shaft, solves existing hub bearing and drive shaft
Gap variation is generated in vehicle movement stress, is easily made the grease proofing and bad problem of dust-proof effect, is improved the use of automobile component
Service life increases vehicle safety.
In order to achieve the above object, the present invention the following technical schemes are provided:
A kind of sealing structure of automobile hub bearing and drive shaft, including be successively sequentially connected drive shaft, knuckle and
Hub bearing, the hub bearing is arranged inside the knuckle, so that the hub bearing, the knuckle and the drive
An installation space is surrounded between moving axis, further includes: be equipped with knuckle side-sealing device in the installation space and drive shaft side is close
Seal apparatus；
The knuckle side-sealing device includes: the first metal bone circle, the first sealing ring and spring ring；First metal
The side of bone circle and the first sealing ring integrated vulcanizing, the inside of the other side and the knuckle of the first metal bone circle
Interference fit, first sealing ring is buckled on the first position of the drive shaft by the spring ring, so that the drive
When moving axis rotates, first sealing ring and the drive shaft are in sliding wear sealing；
The drive shaft side sealing device includes: the second metal bone circle, the second sealing ring；The second metal bone circle it is interior
Side vulcanization has second sealing ring, and the second metal bone circle is buckled on the second position of the drive shaft, makes described the
Two sealing rings form sealing between the first metal bone circle and the second metal bone circle；
In the drive shaft turns, the drive shaft side sealing device is with the drive shaft turns, the knuckle side
Sealing device and the drive shaft are in sliding wear state.
Preferably, the section of the first metal bone circle is imitative stairstepping.
Preferably, the section of first sealing ring is in triangular wedge, the first sealing ring cross-section small side and institute
The side for stating the first metal bone circle sulfides, the first sealing ring cross-section side contact with the drive shaft it is close
Envelope.
Preferably, it is equipped with U-type groove in the two sides of first sealing ring, the spring ring is set in the U-type groove, so that
First sealing ring links closely the drive shaft under the compression force of the spring ring.
Preferably, the bottom surface of first sealing ring is equipped with groove, lubricating oil is placed in the groove, so that the steering
Save side-sealing device and the drive shaft sliding wear.
Preferably, the section of the second metal bone circle is L shape, the inside of the second metal bone circle bottom surface and described the
The vulcanization of two sealing rings is integral.
Preferably, second sealing ring includes: the first lip and the second lip；First lip and second lip
Side is in bell shape, and first lip is arranged at an angle with the second metal bone circle bottom surface, second lip
Section be arc-shaped, the circular arc protrusion of second lip is towards first lip.
Preferably, the first position is in, at the drive shaft side sealing device in the knuckle side-sealing device
When the second position, first lip is crimped with the first metal bone circle high spot, second lip with it is described
The first metal tangent contact in bone circle horizontal inner side face.
Preferably, the first metal bone circle is less than the second metal bone circle.
Preferably, the material of first sealing ring and second sealing ring is nitrile rubber.
The present invention provides the sealing structure of a kind of automobile hub bearing and drive shaft, by respectively in drive shaft side and steering
It saves side and sealing device is set, solve existing hub bearing and drive shaft and generate gap variation in vehicle movement stress, easily make to prevent
Oil and the bad problem of dust-proof effect improve the service life of automobile component, increase vehicle safety.
Detailed description of the invention
In order to illustrate more clearly of specific embodiments of the present invention, attached drawing needed in the embodiment will be made below
Simply introduce.
Fig. 1: the hub bearing of the prior art and the sealed structural schematic diagram of drive shaft；
Fig. 2: being the sealed structural schematic diagram of a kind of hub bearing and drive shaft provided by the invention；
Fig. 3: being knuckle side-sealing device schematic cross-section provided in an embodiment of the present invention；
Fig. 4: being drive shaft side sealing device schematic cross-section provided in an embodiment of the present invention；
Fig. 5: being that knuckle side-sealing device provided in an embodiment of the present invention and drive shaft side sealing device cooperate schematic diagram.
Appended drawing reference
1 ring flange
2 hub bearings
3 knuckles
4 mud guards
5 drive shafts
6 knuckle side-sealing devices
61 first metal bone circles
611 first metal bone circle protrusions
612 first metal bone circle horizontal inner side faces
62 first sealing rings
621 U-type grooves
622 grooves
63 spring rings
7 drive shaft side sealing devices
71 second metal bone circles
72 second sealing rings
721 first lips
722 second lips
Specific embodiment
The scheme of embodiment in order to enable those skilled in the art to better understand the present invention with reference to the accompanying drawing and is implemented
Mode is described in further detail the embodiment of the present invention.
For the transmission connection of current automotive suspension wheel hub and drive shaft, vehicle fortune is sealed at bearing and drive shaft
When dynamic, the problem of easily making dust, oil liquid enter part, cause damage parts, the present invention provides a kind of automobile hub bearing and drives
The sealing structure of moving axis solves existing hub bearing and drives by the way that sealing device is arranged in drive shaft side and knuckle side respectively
Moving axis generates gap variation in vehicle movement stress, easily makes the grease proofing and bad problem of dust-proof effect, improves automobile component
Service life increases vehicle safety.
As shown in Fig. 2, being a kind of sealed structural schematic diagram of hub bearing and drive shaft provided by the invention.The structure packet
The drive shaft 5 being successively sequentially connected, knuckle 3 and hub bearing 2 are included, the hub bearing 2 is arranged in the knuckle 3
Portion, so as to surround an installation space between the hub bearing 2, the knuckle 3 and the drive shaft 5, further includes: the peace
It fills and is equipped with knuckle side-sealing device 6 and drive shaft side sealing device 7 in space.The knuckle side-sealing device 6 includes:
One metal bone circle 61, the first sealing ring 62 and spring ring 63；The side of the first metal bone circle 61 and first sealing ring
62 integrated vulcanizings, the other side of the first metal bone circle 61 and the inside of the knuckle 3 are interference fitted, first sealing
Circle 62 is buckled on the first position of the drive shaft 5 by the spring ring 63, described when so that the drive shaft 5 rotating
First sealing ring 62 is in sliding wear sealing with the drive shaft 5.The drive shaft side sealing device 7 includes: the second metal bone circle
71, the second sealing ring 72；The inside vulcanization of the second metal bone circle 71 has second sealing ring 72, the second metal bone
Circle 71 is buckled on the second position of the drive shaft 5, makes second sealing ring 72 in the first metal bone circle 61 and institute
It states and forms sealing between the second metal bone circle 71.In the drive shaft 5 rotation, the drive shaft side sealing device 7 is with described
Drive shaft 5 rotates, and the knuckle side-sealing device 6 is in sliding wear state with the drive shaft 5.
As shown in figure 3, the section of the first metal bone circle 6 is imitative stairstepping.The section of first sealing ring 62 is in
Triangular wedge, the small side in 62 section of the first sealing ring and the side of the first metal bone circle 61 sulfide, institute
State 62 section of the first sealing ring side contact sealing with the drive shaft 5.
Further, it is equipped with U-type groove 621 in the two sides of first sealing ring 62, sets the bullet in the U-type groove 621
Spring coil 63, the drive shaft 5 so that first sealing ring 62 links closely under the compression force of the spring ring 63.
Further, the bottom surface of first sealing ring 62 is equipped with groove 622, places lubricating oil in the groove 622, with
Make the knuckle side-sealing device 6 and 5 sliding wear of drive shaft.In practical applications, butter can be used in lubricating oil.
As shown in figure 4, the section of the second metal bone circle 71 is L shape, the inside of 71 bottom surface of the second metal bone circle
Vulcanize integrally with second sealing ring 72.
Further, second sealing ring 72 includes: the first lip 721 and the second lip 722；First lip 721
It is in bell shape with second lip 722, first lip 721 is in certain angle with 71 bottom surface of the second metal bone circle
The section of degree setting, second lip 722 is arc-shaped, and the circular arc protrusion of second lip 722 is towards first lip
Side 721.
As shown in figure 5, being in the first position, drive shaft side sealing dress in the knuckle side-sealing device 6
When setting 7 in the second position, crimped at first lip 721 and the first metal bone circle protrusion 611, described second
Lip 722 with the first metal bone circle horizontal inner side face 612 is tangent contacts.
In practical applications, since the first lip 721 and the second lip 722 are in the shape of a trumpet, keep the second sealing ring 72 left
The rigidity of right two sides is different, and the power ratio right side for being open used from left side is small, it is ensured that the height of inside generation when wheel hub moves
Body of calming the anger is smoothly discharged.Meanwhile 722 lip of the second lip is routed up outward, can further increase right side foreign into
The resistance entered, and can guarantee that internal gas is discharged.
Further, the first metal bone circle 61 is less than the second metal bone circle 71.It avoids in drive shaft turns, the
One metal bone circle 61 is interferenceed with the second metal bone circle 71.
In practical applications, the material of first sealing ring and second sealing ring is nitrile rubber.
As it can be seen that the present invention provides the sealing structure of a kind of automobile hub bearing and drive shaft, by respectively in drive shaft side
Sealing device is set with knuckle side, solves existing hub bearing and drive shaft and generates gap variation in vehicle movement stress,
Easily make the grease proofing and bad problem of dust-proof effect, improve the service life of automobile component, increases vehicle safety.
Structure, feature and effect of the invention, the above institute is described in detail according to diagrammatically shown embodiment above
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (8)
1. the sealing structure of a kind of automobile hub bearing and drive shaft, including drive shaft, knuckle and the wheel being successively sequentially connected
Hub axle is held, and the hub bearing is arranged inside the knuckle, so that the hub bearing, the knuckle and the driving
An installation space is surrounded between axis, which is characterized in that further include: knuckle side-sealing device and drive are equipped in the installation space
Moving axis side-sealing device；
The knuckle side-sealing device includes: the first metal bone circle, the first sealing ring and spring ring；The first metal bone circle
Side and the first sealing ring integrated vulcanizing, the inside interference of the other side of the first metal bone circle and the knuckle
Cooperation, first sealing ring is buckled on the first position of the drive shaft by the spring ring, so that the drive shaft
When rotation, first sealing ring and the drive shaft are in sliding wear sealing；
The drive shaft side sealing device includes: the second metal bone circle, the second sealing ring；The inside sulphur of the second metal bone circle
Change has second sealing ring, and the second metal bone circle is buckled on the second position of the drive shaft, makes described second close
Seal forms sealing between the first metal bone circle and the second metal bone circle；
In the drive shaft turns, the drive shaft side sealing device is with the drive shaft turns, the knuckle side seal
Device and the drive shaft are in sliding wear state；
Second sealing ring includes: the first lip and the second lip；First lip and second lip are in horn mouth
Shape, first lip are arranged at an angle with the second metal bone circle bottom surface, and the section of second lip is circle
Arcuation, the circular arc protrusion of second lip is towards first lip；
The knuckle side-sealing device is in the first position, the drive shaft side sealing device is in the second
When setting, first lip is crimped with the first metal bone circle high spot, second lip and the first metal bone circle
The tangent contact in horizontal inner side face.
2. sealing structure according to claim 1, which is characterized in that the section of the first metal bone circle is imitative ladder
Shape.
3. sealing structure according to claim 1, which is characterized in that the section of first sealing ring is in triangular wedge,
The side of the first sealing ring cross-section small side and the first metal bone circle sulfides, and first sealing ring is cut
The big side in face contacts sealing with the drive shaft.
4. sealing structure according to claim 3, which is characterized in that be equipped in the two sides of first sealing ring U-shaped
Slot sets the spring ring in the U-type groove, the institute so that first sealing ring links closely under the compression force of the spring ring
State drive shaft.
5. sealing structure according to claim 4, which is characterized in that the bottom surface of first sealing ring is equipped with groove, institute
It states and places lubricating oil in groove, so that the knuckle side-sealing device and the drive shaft sliding wear.
6. sealing structure according to claim 5, which is characterized in that the section of the second metal bone circle is L shape, described
The inside of second metal bone circle bottom surface and second sealing ring vulcanization are integral.
7. sealing structure according to any one of claims 1 to 6, which is characterized in that the first metal bone circle is less than institute
State the second metal bone circle.
8. sealing structure according to any one of claims 1 to 6, which is characterized in that first sealing ring and described
The material of two sealing rings is nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045501.7A CN106394115B (en) | 2016-11-24 | 2016-11-24 | A kind of sealing structure of automobile hub bearing and drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045501.7A CN106394115B (en) | 2016-11-24 | 2016-11-24 | A kind of sealing structure of automobile hub bearing and drive shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106394115A CN106394115A (en) | 2017-02-15 |
| CN106394115B true CN106394115B (en) | 2018-12-14 |
Family
ID=58082789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611045501.7A Active CN106394115B (en) | 2016-11-24 | 2016-11-24 | A kind of sealing structure of automobile hub bearing and drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106394115B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171435A (en) * | 2005-05-03 | 2008-04-30 | 谢夫勒两合公司 | Sealed radial rolling bearing, in particular wheel bearing for a motor vehicle |
| CN102639333A (en) * | 2009-09-25 | 2012-08-15 | Ntn株式会社 | Bearing device for a wheel |
| CN203202221U (en) * | 2013-03-29 | 2013-09-18 | 长城汽车股份有限公司 | Knuckle sealing device |
| CN103477103A (en) * | 2011-03-30 | 2013-12-25 | Ntn株式会社 | Bearing device for wheel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006200616A (en) * | 2005-01-20 | 2006-08-03 | Ntn Corp | Bearing sealing device and rolling bearing with cold resistant sealing device |
-
2016
- 2016-11-24 CN CN201611045501.7A patent/CN106394115B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171435A (en) * | 2005-05-03 | 2008-04-30 | 谢夫勒两合公司 | Sealed radial rolling bearing, in particular wheel bearing for a motor vehicle |
| CN102639333A (en) * | 2009-09-25 | 2012-08-15 | Ntn株式会社 | Bearing device for a wheel |
| CN103477103A (en) * | 2011-03-30 | 2013-12-25 | Ntn株式会社 | Bearing device for wheel |
| CN203202221U (en) * | 2013-03-29 | 2013-09-18 | 长城汽车股份有限公司 | Knuckle sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106394115A (en) | 2017-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |