CN103498867A - Ball bearing device for wheel hub - Google Patents
Ball bearing device for wheel hub Download PDFInfo
- Publication number
- CN103498867A CN103498867A CN201310388137.4A CN201310388137A CN103498867A CN 103498867 A CN103498867 A CN 103498867A CN 201310388137 A CN201310388137 A CN 201310388137A CN 103498867 A CN103498867 A CN 103498867A
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- Prior art keywords
- wheel hub
- joint
- extension
- interior
- ball bearing
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Abstract
The invention discloses a ball bearing device for a wheel hub, and is used for the wheel hub of a vehicle wheel, an outer ring for fixing to a vehicle body is arranged on the outer side of the middle part of the wheel hub, a locating ring is fixedly arranged on the wheel hub, the locating ring is located on the front side of the outer ring, a plurality of first balls are arranged between the locating ring and the outer ring, a plurality of second balls are arranged between the wheel hub and the outer ring and on the rear side, an annular first sealing part is arranged between the locating ring and the outer ring to seal the first balls, an annular second sealing part is arranged between the wheel hub and the outer ring and on the rear side to seal the second balls; the ball bearing device for the wheel hub has a simple structure, and can effectively seal to prevent external foreign bodies from entering into a bearing, the influence of a high speed centrifugal force can be avoided, and the torque loss is reduced.
Description
Technical field
The present invention relates to the sealing technique of wheel hub, the wheel hub ball bearing unit that relate in particular to a kind of effectively leakproof, increases the service life.
Background technique
Along with vehicle use frequent, as the sealing of wheel, be one of wheel key of whether bearing enough pressure and rotational speed, therefore, sealed member such as bearing is also more and more important, bearing commonly used, adopt the ball bearing by inner casing, shell and ball usually, once water immerses bearing inside, the lubricant oil sealed in bearing will be affected, cause grease to be degenerated, and form rust in bearing, therefore cause that bearing life shortens.
Therefore, in ball bearing, exist to adopt the type of sealing configuration, this sealing configuration can prevent such as the foreign matter of water invade in the inside of bearing and the lubricant oil that prevents from sealing in the inside of bearing for example grease flow to the bearing outside.
Sealing configuration as a kind of ball bearing of prior art, be fixed to inner ring and be located at the place, front side of the rotary component that clutch mechanism is set with the sealed member that outer ring forms sliding contact, be fixed to outer ring and be located at opposition side along the rear side place of axial direction with the sealed member of inner ring formation sliding contact, by front and back sealing rings, stop foreign to enter bearing.
Yet in the rainy day with have on the poor road in puddle, a large amount of slime waters is splashed on wheel and wheel hub, and, when slime water enters the inside of wheel hub, slime water arrives the front and back side of bearing.And, when slime water is invaded in the rear side place, the gap between outer ring and inner ring at bearing, if the interference of sealing does not exist or interferes little, slime water is invaded in the inside of bearing by the gap between inner ring and seal lip, so that lubricant oil for example grease degenerate, will shorten thus the life-span of bearing.
On the other hand, Sealing is rotated relatively, and due to the impact of centrifugal force in the High Rotation Speed scope, the interference of Sealing is lost sometimes, forms loss of machine of torque.
For this reason, artificer of the present invention, by concentrating on studies and designing, comprehensively is engaged in for a long time experience and the achievement of related industry for many years, and research and design goes out a kind of wheel hub ball bearing unit, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of wheel hub ball bearing unit, it is simple in structure, can effectively be sealed, and prevents that foreign from entering in bearing, and has avoided the impact of high speed centrifugation power, has reduced loss of machine of torque, has practicability.
For achieving the above object, the invention discloses a kind of wheel hub ball bearing unit, wheel hub for wheel, the outside, middle part of described wheel hub is provided with the outer shroud that is fixed to vehicle body, be installed with a positioning ring on described wheel hub, described positioning ring is positioned at the front side of described outer shroud, described positioning ring and and described outer shroud between be provided with a plurality of the first balls, rear side between described wheel hub and described outer shroud is provided with a plurality of the second balls, it is characterized in that:
The first sealed member of one annular be arranged at described positioning ring and and described outer shroud between so that the sealing of the first ball to be provided; The second sealed member of one annular is arranged at rear side between described wheel hub and described outer shroud so that the sealing of the second ball to be provided.
Wherein: this first sealed member comprise be connected in described outer shroud first on joint and be connected in first time joint on described positioning ring, on described first, a side of joint has extended radially inwardly extension part on first, opposite side axially is outward extended with extension on first, on described first, extension part is provided with the outside of the described first time connection part of covering section joint on first on first, its first lower extension that extended radially outwardly, covering section radially inwardly is provided with the first epipharynx and the first outer lip that is resisted against described first time joint on described first.
Wherein: on first, covering section axially outwards is provided with successively the first extension lip that is resisted against described the first lower extension and extends for the first time lip.
Wherein: the outside of described the first lower extension is provided with the first outer covering section.
Wherein: this second sealed member comprises the second interior joint that is connected in described outer shroud and the second outer joint that is connected in described wheel hub, the described second interior joint has extended radially inwardly the second interior extension part, the described second interior extension part has further extended radially inwardly second and has been embedded in section, the described second interior extension part and second section of being embedded in are provided with the second interior covering section, the described second interior extension part and second be embedded between section, form step-like so that firm being fixed thereon of the second interior covering section; The described second interior covering section radially inwardly is provided with the second epipharynx and the second outer lip that is resisted against described the second extension section.
Wherein: a side shaft of described the second outer joint is to second extension part that extended internally, the opposite side second outer extension that axially extended internally, the described second outer extension extends the outside of described outer shroud, and the outside of described the second outer extension is provided with the second outer covering section.
Wherein: the second interior covering section axially outwards is provided with successively and is resisted against second of described the second outer joint and extends lip and extend for the second time lip.
Wherein: a side outer rim of described wheel hub is provided with boss bolt, opposite side is connected with the constant speed connector, be provided with a live axle in described constant speed connector, described live axle has the connection outer shroud of rotatable a plurality of ball and rotatable fixing described ball outward, one end of described live axle is provided with the joint stretched in described wheel hub, in described joint, has internal thread;
One fixing bolt inserts into the inner section from a side of described wheel hub, has the outside thread matched with the internal thread of described joint on described fixing bolt.
By said structure, wheel hub of the present invention has been realized following technique effect with ball bearing unit:
1, good sealing effect, avoid mutual interference;
2, the contact position of seal ring is shallow, avoids the impact on moment of torsion;
3, foreign matter is difficult for entering, and has guaranteed the life-span.
The present invention will be further described in detail by the following specific embodiments, and will be more apparent and obvious to understand further combined with the description of the drawings.
The accompanying drawing explanation
Fig. 1 has shown the application schematic diagram of wheel hub of the present invention with ball bearing unit.
Fig. 2 has shown the enlarged diagram of the present invention's the first sealed member.
Fig. 3 has shown the enlarged diagram of the present invention's the second sealed member.
Reference character:
101: wheel hub; 102: the constant speed connector; 103: live axle; 104: ring in connecting; 105: joint; 106: fixing bolt; 107: boss bolt; 108: outer shroud; 109: positioning ring; 110: the first balls; 111: the second balls; 112: the first sealed members; 113: the second sealed members; Joint on 11: the first; 12: the first times joints; Extension part on 13: the first; 14: the first lower extension; Extension on 15: the first; Covering section on 16: the first; 17: the first epipharynxs; 18: the first outer lips; Extend lip at 19: the first; 20: extend for the first time lip; 21: the first times covering sections; 22: the second interior joints; 23: the second interior extension parts; Be embedded in section at 24: the second; 25: the second interior covering sections; 26: the second epipharynxs; 27: the second outer lips; Extend lip at 28: the second; 29: extend for the second time lip; 30: the second outer joints; 31: the second extension sections; 32: the second outer extensions; 33: the second outer covering sections.
Embodiment
Referring to Fig. 1, shown wheel hub ball bearing unit of the present invention.
Described wheel hub is the wheel hub 101 for wheel with ball bearing unit, one side outer rim of described wheel hub 101 is provided with boss bolt 107, opposite side is connected with constant speed connector 102, be provided with a live axle 103 in described constant speed connector 102, the outer connection outer shroud 104 with rotatable a plurality of ball and rotatable fixing described ball of described live axle 103, one end of described live axle 103 is provided with the joint 105 stretched in described wheel hub 101, in described joint 105, has internal thread.
One fixing bolt 106 inserts into the inner section from a side of described wheel hub 101, has the outside thread matched with the internal thread of described joint 105 on described fixing bolt 106.
The outside, middle part of described wheel hub 101 is provided with the outer shroud 108 that is fixed to vehicle body, be installed with a positioning ring 109 on described wheel hub 101, described positioning ring 109 is positioned at the front side of described outer shroud 108, described positioning ring 109 and and described outer shroud 108 between be provided with a plurality of the first balls 110, the rear side between described wheel hub 101 and described outer shroud 108 is provided with a plurality of the second balls 111.
The first sealed member 112 of one annular be arranged at described positioning ring 109 and and described outer shroud 108 between so that the sealing of the first ball 110 to be provided; The second sealed member 113 of one annular is arranged at rear side between described wheel hub 101 and described outer shroud 108 so that the sealing of the second ball 110 to be provided.
Referring to Fig. 2, shown a preferred embodiment of the first sealed member 112, this first sealed member 112 comprise be connected in described outer shroud 108 first on joint 11 and be connected in first time joint 12 on described positioning ring 109, preferably, on described first on joint 11 and second joint 12 be made of metal, on described first, a side of joint 11 has extended radially inwardly extension part 13 on first, opposite side axially is outward extended with extension 15 on first, on described first, extension part 13 is provided with covering section 16 on first, preferably, on described first, covering section 16 can be made by phenolic resin, described first time joint 12 is positioned at the outside of joint 11 on first, its first lower extension 14 that extended radially outwardly.
On described first, covering section 16 radially inwardly is provided with the first epipharynx 17 and the first outer lip 18 that is resisted against described first time joint 12, described the first epipharynx 17 axially slightly inwardly stretches out, described the first outer lip 18 is axially slightly protruding, thus, be formed with sealing together between extension part and first time joint on first, avoid lubricating grease to ooze out from the first ball outside, and the setting of the first epipharynx and the first outer lip, can cooperatively interact and be sealed, further improve sealing effect.
Optionally, on first, covering section 16 axially outwards is provided with successively the first extension lip 19 that is resisted against described the first lower extension 14 and extends for the first time lip 20, described first extend lip 19 and extend for the first time lip 20 axially slightly protruding to form another road sealing between extension part on first and the first lower extension, this another road sealing has not only guaranteed the safety of lubricating grease, has also avoided the intrusion of foreign.
Optionally, be provided with the first outer covering section 21 in the outside of described the first lower extension 14, preferably, the described first outer covering section 21 can be made by phenolic resin,
As can be seen here, this first sealed member can provide effective sealing between outer shroud 108 and positioning ring 109, and the two seals in its structure has enough guaranteed that lubricating grease can not ooze out and the intrusion of foreign, has guaranteed the first ball safety in the process of moving.
Referring to Fig. 3, shown a preferred embodiment of the second sealed member 113, this second sealed member 113 comprises the second interior joint 22 that is connected in described outer shroud 108 and the second outer joint 30 that is connected in described wheel hub 101, preferably, the described second interior joint 22 and the second outer joint 30 are made of metal, the described second interior joint 22 has extended radially inwardly the second interior extension part 23, the described second interior extension part 23 has further extended radially inwardly second and has been embedded in section 24, the described second interior extension part 23 and second is embedded in section 24 and is provided with the second interior covering section 25, preferably, the described second interior covering section 25 is made by phenolic resin, the described second interior extension part 23 and second be embedded between section 24 form step-like so that firm being fixed thereon of the second interior covering section.
One side shaft of the described second outer joint 30 is to second extension part 23 that extended internally, the opposite side second outer extension 32 that axially extended internally, the described second outer extension 32 extends the outside of described outer shroud 108, stop the intrusion of foreign matter, the outside of the described second outer extension 32 is provided with the second outer covering section 33, preferably, the described second outer covering section 33 can be made by phenolic resin.
The described second interior covering section 25 radially inwardly is provided with the second epipharynx 26 and the second outer lip 27 that is resisted against described the second extension section 31, described the second epipharynx 26 axially slightly inwardly stretches out, described the second outer lip 27 is axially slightly protruding, thus, be formed with sealing together between the second interior extension part and the second extension section, avoid lubricating grease to ooze out from the second ball outside, and the setting of the second epipharynx and the second outer lip, can cooperatively interact and be sealed, further improve sealing effect.
Optionally, the second interior covering section 25 axially outwards is provided with successively and is resisted against second of the described second outer joint 30 and extends lip 28 and extend for the second time lip 29, described second extend lip 28 and extend for the second time lip 29 axially slightly protruding to form another road sealing between the second interior extension part and the second outer joint, this another road sealing has not only guaranteed the safety of lubricating grease, has also avoided the intrusion of foreign.
As can be seen here, this second sealed member can provide effective sealing between outer shroud 108 and wheel hub 101, and the two seals in its structure has enough guaranteed that lubricating grease can not ooze out and the intrusion of foreign, has guaranteed the second ball safety in the process of moving.
Known by foregoing description, wheel hub of the present invention has following advantage with ball bearing unit:
1, good sealing effect, avoid mutual interference;
2, the contact position of seal ring is shallow, avoids the impact on moment of torsion;
3, foreign matter is difficult for entering, and has guaranteed the life-span.
It is evident that, above description and record are only for example rather than in order to limit disclosure of the present invention, application or use.Although described in an embodiment and be described in the drawings embodiment, but the optimal mode that the present invention does not limit by the accompanying drawing example and the conduct of describing is in an embodiment thought at present to be to implement the specific examples of instruction of the present invention, scope of the present invention will comprise any embodiment of the specification that falls into front and appended claim.
Claims (8)
1. a wheel hub ball bearing unit, wheel hub for wheel, the outside, middle part of described wheel hub is provided with the outer shroud that is fixed to vehicle body, be installed with a positioning ring on described wheel hub, described positioning ring is positioned at the front side of described outer shroud, described positioning ring and and described outer shroud between be provided with a plurality of the first balls, the rear side between described wheel hub and described outer shroud is provided with a plurality of the second balls, it is characterized in that:
The first sealed member of one annular be arranged at described positioning ring and and described outer shroud between so that the sealing of the first ball to be provided; The second sealed member of one annular is arranged at rear side between described wheel hub and described outer shroud so that the sealing of the second ball to be provided.
2. wheel hub ball bearing unit as claimed in claim 1, it is characterized in that: this first sealed member comprise be connected in described outer shroud first on joint and be connected in first time joint on described positioning ring, on described first, a side of joint has extended radially inwardly extension part on first, opposite side axially is outward extended with extension on first, on described first, extension part is provided with the outside of the described first time connection part of covering section joint on first on first, its first lower extension that extended radially outwardly, on described first, covering section radially inwardly is provided with the first epipharynx and the first outer lip that is resisted against described first time joint.
3. wheel hub ball bearing unit as claimed in claim 2 is characterized in that: on first, covering section axially outwards is provided with successively and is resisted against first of described the first lower extension and extends lip and extend for the first time lip.
4. wheel hub ball bearing unit as claimed in claim 3 is characterized in that: the outside of described the first lower extension is provided with the first outer covering section.
5. wheel hub ball bearing unit as claimed in claim 1, it is characterized in that: this second sealed member comprises the second interior joint that is connected in described outer shroud and the second outer joint that is connected in described wheel hub, the described second interior joint has extended radially inwardly the second interior extension part, the described second interior extension part has further extended radially inwardly second and has been embedded in section, the described second interior extension part and second section of being embedded in are provided with the second interior covering section, the described second interior extension part and second be embedded between section form step-like so that firm being fixed thereon of the second interior covering section, the described second interior covering section radially inwardly is provided with the second epipharynx and the second outer lip that is resisted against described the second extension section.
6. wheel hub ball bearing unit as claimed in claim 5, it is characterized in that: a side shaft of described the second outer joint is to second extension part that extended internally, the opposite side second outer extension that axially extended internally, the described second outer extension extends the outside of described outer shroud, and the outside of described the second outer extension is provided with the second outer covering section.
7. wheel hub ball bearing unit as claimed in claim 5 is characterized in that: the second interior covering section axially outwards is provided with successively and is resisted against second of described the second outer joint and extends lip and extend for the second time lip.
8. as arbitrary described wheel hub ball bearing unit in claim 1-7, it is characterized in that:
One side outer rim of described wheel hub is provided with boss bolt, opposite side is connected with the constant speed connector, be provided with a live axle in described constant speed connector, described live axle has the connection outer shroud of rotatable a plurality of ball and rotatable fixing described ball outward, one end of described live axle is provided with the joint stretched in described wheel hub, in described joint, has internal thread;
One fixing bolt inserts into the inner section from a side of described wheel hub, has the outside thread matched with the internal thread of described joint on described fixing bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388137.4A CN103498867A (en) | 2013-09-01 | 2013-09-01 | Ball bearing device for wheel hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388137.4A CN103498867A (en) | 2013-09-01 | 2013-09-01 | Ball bearing device for wheel hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103498867A true CN103498867A (en) | 2014-01-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388137.4A Pending CN103498867A (en) | 2013-09-01 | 2013-09-01 | Ball bearing device for wheel hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103498867A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074569A (en) * | 2001-09-05 | 2003-03-12 | Ntn Corp | Bearing device for wheel |
| US20070090604A1 (en) * | 2005-10-17 | 2007-04-26 | Uchiyama Manufacturing Corp. | Sealing device |
| JP2010047058A (en) * | 2008-08-19 | 2010-03-04 | Ntn Corp | Wheel bearing device and axle module |
| CN101687435A (en) * | 2007-05-29 | 2010-03-31 | Ntn株式会社 | Bearing device for wheel |
| CN201827246U (en) * | 2010-10-28 | 2011-05-11 | 常州光洋轴承有限公司 | Sealing unit of hub bearing |
| CN203067557U (en) * | 2013-01-27 | 2013-07-17 | 山东汇丰汽车配件有限公司 | Four-lip combined type sealing structure and wheel hub bearing unit |
-
2013
- 2013-09-01 CN CN201310388137.4A patent/CN103498867A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074569A (en) * | 2001-09-05 | 2003-03-12 | Ntn Corp | Bearing device for wheel |
| US20070090604A1 (en) * | 2005-10-17 | 2007-04-26 | Uchiyama Manufacturing Corp. | Sealing device |
| CN101687435A (en) * | 2007-05-29 | 2010-03-31 | Ntn株式会社 | Bearing device for wheel |
| JP2010047058A (en) * | 2008-08-19 | 2010-03-04 | Ntn Corp | Wheel bearing device and axle module |
| CN201827246U (en) * | 2010-10-28 | 2011-05-11 | 常州光洋轴承有限公司 | Sealing unit of hub bearing |
| CN203067557U (en) * | 2013-01-27 | 2013-07-17 | 山东汇丰汽车配件有限公司 | Four-lip combined type sealing structure and wheel hub bearing unit |
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Application publication date: 20140108 |