CN204623004U - Hub-bearing unit - Google Patents
Hub-bearing unit Download PDFInfo
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- CN204623004U CN204623004U CN201520228084.4U CN201520228084U CN204623004U CN 204623004 U CN204623004 U CN 204623004U CN 201520228084 U CN201520228084 U CN 201520228084U CN 204623004 U CN204623004 U CN 204623004U
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- hub
- axle journal
- wheel hub
- raceway
- long end
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Abstract
The utility model discloses a kind of hub-bearing unit, belong to vehicular spare parts field.Comprise wheel hub, outward flange dish, clutch can, long end axle journal, ball and venting plate, wheel hub and venting plate are structure as a whole, and clutch can and long end axle journal are structure as a whole, and the shank of long end axle journal and the inner circle of wheel hub pass through spline fitted; Long end axle journal is provided with a step, lasso fixed by step, lasso is provided with raceway in first, long end axle journal is provided with raceway in second, the inner circle of outward flange dish is provided with twice outer raceway corresponding with raceway position in raceway in first and second respectively, is provided with ball between interior raceway and outer raceway; Step is close in one end of described lasso, and the other end is close to wheel hub.Clutch can, long end axle journal are made one, venting plate and wheel hub and made one, and greatly reduce the parts count of hub-bearing unit, structure is compacter, alleviate hub-bearing unit overall weight, parts integrated level is high, strengthens the reliability of system, efficiently easier for installation.
Description
Technical field
the utility model relates to a kind of hub-bearing unit, is specifically a kind of hub-bearing unit of compact conformation, belongs to vehicular spare parts field.
Background technology
Hub-bearing unit, as the important parts of automobile, is mainly used to load-bearing and provides accurate guide for the rotation of hub bearing.Current car generally adopts constant-velocity universal joint coordinate with third generation hub-bearing unit, hub-bearing unit is connected with wheel, and constant-velocity universal joint adopts spline to coordinate with inside flange, and this structural elements is many, and assembling is complicated, and car turn radius is little.Along with further developing of science and technology, people require to improve further to the integrated level of car parts, compactedness.
On January 17th, 2010, Chinese utility model patent application CN101633292 discloses a kind of constant-velocity universal joint with hub-bearing unit, using adjacent wheel hub cylindrical and fixed end universal-joint cylindrical jointly as the inner ring of bearing unit, wheel hub cylindrical forms first lap raceway for wherein row's rolling body rolling, the cylindrical of fixed end universal-joint is formed the second circle raceway roll for another row's rolling body, its two rows raceway is not on same individuality, when coordinating with the raceway of flange plate outer ring, ball is installed comparatively complicated and difficult.
On February 18th, 2009, Chinese utility model patent CN 201195476 Y, disclose a kind of forth generation hub-bearing unit, clutch can is fixed on the end step of inner flange long end axle journal by it, and withstand inner ring simultaneously, the axle journal end face of long end axle journal is set as crimping, encases clutch can, and clutch can inside is provided with constant velocity driveshaft ball cage formula universal-joint.Inner ring and clutch can are provided separately by this kind of structure, and parts are more, complex structure, and are difficult to processing installation.
Utility model content
Technical problem to be solved in the utility model is to overcome prior art defect, provide that a kind of number of parts is few, the functional integration of part compared with high, axial dimension is little, the hub-bearing unit of compact conformation.
In order to solve the problems of the technologies described above, the hub-bearing unit that the utility model provides, comprise wheel hub, outward flange dish, clutch can, long end axle journal, ball and venting plate, described wheel hub and venting plate are structure as a whole; Described clutch can and long end axle journal are structure as a whole, and the described shank of long end axle journal and the inner circle of wheel hub pass through spline fitted; Described long end axle journal is provided with a step, lasso fixed by described step, lasso is provided with raceway in first, described long end axle journal is provided with raceway in second, the inner circle of described outward flange dish is provided with twice outer raceway corresponding with raceway position in raceway in first and second respectively, is provided with ball between described interior raceway and outer raceway; Step is close in one end of described lasso, and the other end is close to wheel hub.
The beneficial effects of the utility model are: clutch can, long end axle journal are made one, venting plate and wheel hub and made one, greatly reduce the number of parts of hub-bearing unit, structure is compacter, alleviate hub-bearing unit overall weight, parts integrated level is high, strengthens the reliability of system and efficiently easier for installation.
As improvement, the contact jaw of described lasso and wheel hub slightly exceeds long end axle journal, can cannot to while the play of long end axle journal direction at restriction wheel hub, ensures that lasso cannot left and right play, uses the structure of hub-bearing unit more reliable and more stable.
As improvement, described lasso is lower than wheel hub; Exterior seal ring is provided with, the outside of described exterior seal ring and the contacts side surfaces of wheel hub between the side of described outward flange dish and lasso; Inner seal ring is provided with between the opposite side of described outward flange dish and long end axle journal.Arranged lower than wheel hub by lasso, while the top of exterior seal ring, bottom contact with outward flange dish, lasso respectively and is close to, the side of wheel hub props up the outside of exterior seal ring, exterior seal ring is sealed more reliable and more stable.
As improvement, described venting plate is hollow structure, and its inside is provided with the solid disc that two panels is connected by pillar stiffener interval.Venting plate rotor inertia can be used little, perfect heat-dissipating, automobile centnifugal force in the process of moving can make circulating air, takes the heat in venting plate out of, thus improves its heat-sinking capability.
As improvement, the front end of described long end axle journal shank is provided with crimping, and crimping can limit the left and right play of wheel hub.
Accompanying drawing explanation
Fig. 1 is the utility model hub-bearing unit structural representation;
Fig. 2 is the structural representation of the assembly of the utility model wheel hub and venting plate;
In figure, row ball, 9-row ball, 10-outer retainer, 11-shank, 12-wheel hub, 13-venting plate outward in retainer, 8-in 1-clutch can, 2-inner seal ring, 3-outward flange dish, 4-long end axle journal, 5-lasso, 6-exterior seal ring, 7-.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, 2, the utility model hub-bearing unit comprises outward flange dish 3, clutch can 1, lasso 5, long end axle journal 4, wheel hub 12 and venting plate 13.Long end axle journal 4 and clutch can 1 make one, and long end axle journal 4 is provided with shank 11, and shank 11 is through the inner circle of wheel hub 12, and the male splines on shank 11 matches with the female splines in wheel hub 12 inner circle the assembling realized between the two; Shank 11 front end of long end axle journal 4 is provided with crimping, and crimping is stuck on wheel hub 12, limits its position, prevents the left and right play of wheel hub 12, and it decreases the quantity of part without the need to using screw.The utility model cancels the connection between the two of long end axle journal 4 and clutch can 1, decrease the impact that when vehicle acceleration is slowed down, hub bearing is subject to, alleviate the vibration of hub bearing, alleviate noise, greatly improve the life-span of hub bearing, and do like this and also reduce the volume of hub bearing and the constant-velocity universal joint of right-hand member, reduce its rotor inertia, also for the radius of semiaxis reduces to have left leeway, vehicle acceleration performance and braking quality increase; Meanwhile, be conducive to the parts count reducing hub-bearing unit, improve the integrated level of parts.
Long end axle journal 4 has a step, lasso 5 is fixedly connected with long end axle journal 4 with step interference fit, and be against on the step of long end axle journal 4 on the right side of lasso 5, left side is against on wheel hub 12.In the contact position of lasso 5 with wheel hub 12, lasso 5 is higher than wheel hub 12.Exceed long end shaft left side of neck 1mm on the left of lasso 5, ensure that wheel hub 12 cannot to the right while play (namely to long end axle journal 4 direction) like this, also limiting lasso 5 cannot left and right play, makes hub-bearing unit more reliable and more stable.Lasso 5 is provided with raceway in, long end axle journal cylindrical is provided with another raceway, two interior raceways are as the inner ring of hub bearing, the inner circle of outward flange dish 3 is provided with two outer raceways corresponding with above-mentioned interior raceway position, as the outer ring of hub bearing, outward flange dish 3 is fixed on track arm by bolt.Retainer 7, outer retainer 10 in installing respectively between two corresponding interior raceways, outer raceway, row ball 8 in installing in interior retainer 7, installs outer row ball 9 in outer retainer 10.
Exterior seal ring 6 is installed in the left side of outward flange dish 3, and inner seal ring 2 is installed on the right side of outward flange dish 3.The top of exterior seal ring 6 contacts with outward flange dish 3, and bottom contacts with lasso 5.Due to the contact position at lasso 5 and wheel hub 12, lasso 5 is higher than wheel hub 12, the now outside of exterior seal ring 6 and the contact aside of wheel hub 12, the side of wheel hub 12 limits exterior seal ring 6, by the effect of outward flange dish 3, lasso 5 and wheel hub 12 three, exterior seal ring 6 is used to seal more reliable and more stable.Inner seal ring 2 top contacts with outward flange dish 3, and bottom contacts with long end axle journal 4.Exterior seal ring 6 and inner seal ring 2 are adopted as mulit-lip seal ring, effectively can prevent dust muddy water from entering raceway, guarantee that hub-bearing unit normally uses.
One made by venting plate 13 and wheel hub 12, wheel hub 12 left surface is drilled with through hole, coordinates with the hole on wheel, be bolted fastening.Venting plate 13 is hollow structure, and inside is provided with the two panels solid disc connected by pillar stiffener, and venting plate 13 rotor inertia of this kind of structure is little, perfect heat-dissipating, automobile centnifugal force in the process of moving can make circulating air, takes the heat in venting plate 13 out of, thus improves heat-sinking capability and stability.Venting plate 13 adopts gray iron, and the thermal diffusivity of this material is good, and anti-vibration ability is strong, is the suitable material manufacturing venting plate.
When wheel hub 12 and venting plate 13 use traditional bolt to be connected, bolt be subject to shearing comparatively great Yi destroy, so will use more bolt, this just causes wheel hub 12 and venting plate 13 junction thickness comparatively large, otherwise the bulk strength inadequate life-span is shorter.In the utility model, wheel hub 12 and venting plate 13 are made one, eliminate bolt and connect, project organization is compacter, also its intensity is increased while alleviating overall weight, the vibration produced when effectively reducing braking, the chatter noise of having decayed when braking, improves the deceleration and stopping performance of vehicle; Number of parts is few, and integrated level is high, and structure is compacter, easy for installation.In addition, traditional connection mode bolt and through hole must have certain interval, and moment of torsion transmission has certain time delay, and the impact be subject to both during braking is comparatively large, and brake speed of response is comparatively slow, are unfavorable for improving the service life of hub bearing and the safety of vehicle.Be close to lasso 5 on the left of wheel hub 12, prevent the left and right play of lasso 5; Shank 11 left end of long end axle journal 4 is provided with crimping, and crimping coordinates with lasso 5 and limits wheel hub 12, prevents wheel hub about 12 play.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, can also make some improvement under the prerequisite not departing from the utility model principle, these improvement also should be considered as protection domain of the present utility model.
Claims (5)
1. a hub-bearing unit, comprises wheel hub, outward flange dish, clutch can, long end axle journal, ball and venting plate, it is characterized in that: described wheel hub and venting plate are structure as a whole; Described clutch can and long end axle journal are structure as a whole; The described shank of long end axle journal and the inner circle of wheel hub pass through spline fitted; Described long end axle journal is provided with a step, lasso fixed by described step, lasso is provided with raceway in first, described long end axle journal is provided with raceway in second, the inner circle of described outward flange dish is provided with twice outer raceway corresponding with raceway position in raceway in first and second respectively, is provided with ball between described interior raceway and outer raceway; Step is close in one end of described lasso, and the other end is close to wheel hub.
2. hub-bearing unit according to claim 1, is characterized in that: the contact jaw of described lasso and wheel hub slightly exceeds long end axle journal.
3. hub-bearing unit according to claim 1 and 2, is characterized in that: described lasso is lower than wheel hub; Exterior seal ring is provided with, the outside of described exterior seal ring and the contacts side surfaces of wheel hub between the side of described outward flange dish and lasso; Inner seal ring is provided with between the opposite side of described outward flange dish and long end axle journal.
4. hub-bearing unit according to claim 3, is characterized in that: described venting plate is hollow structure, and its inside is provided with the solid disc that two panels is connected by pillar stiffener interval.
5. hub-bearing unit according to claim 4, is characterized in that: the front end of described long end axle journal shank is provided with crimping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228084.4U CN204623004U (en) | 2015-04-16 | 2015-04-16 | Hub-bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228084.4U CN204623004U (en) | 2015-04-16 | 2015-04-16 | Hub-bearing unit |
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| Publication Number | Publication Date |
|---|---|
| CN204623004U true CN204623004U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520228084.4U Active CN204623004U (en) | 2015-04-16 | 2015-04-16 | Hub-bearing unit |
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| CN (1) | CN204623004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802593A (en) * | 2015-04-16 | 2015-07-29 | 南京航空航天大学 | Wheel hub bearing unit |
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2015
- 2015-04-16 CN CN201520228084.4U patent/CN204623004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802593A (en) * | 2015-04-16 | 2015-07-29 | 南京航空航天大学 | Wheel hub bearing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |