CN203214594U - Double-row wheel hub bearing unit - Google Patents
Double-row wheel hub bearing unit Download PDFInfo
- Publication number
- CN203214594U CN203214594U CN 201320168206 CN201320168206U CN203214594U CN 203214594 U CN203214594 U CN 203214594U CN 201320168206 CN201320168206 CN 201320168206 CN 201320168206 U CN201320168206 U CN 201320168206U CN 203214594 U CN203214594 U CN 203214594U
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- inner ring
- bearing
- induction coil
- magnetic induction
- bearing unit
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Abstract
The utility model discloses a double-row wheel hub bearing unit. The double-row wheel hub bearing unit comprises a flange disc which is provided with a shaft neck in an axial direction in an extending manner, and a magnetic induction coil, wherein a shaft hole of the shaft neck is coaxially and internally provided with a splicing type inner bearing ring; the shaft hole is provided with two outer channels; the inner bearing ring is provided with two corresponding inner channels; rolling bodies, which are separated by a retainer, are arranged between the corresponding outer and inner channels; sealing assemblies are arranged in the gaps between the two ends of the inner bearing ring and the shaft hole; the magnetic induction coil is stuck to one sealing assembly. According to the double-row wheel hub bearing unit disclosed by the utility model, the magnetic induction coil is convenient to mount and maintain, and the reliability of a wheel rotary speed signal is high; the structure of a bearing assembly is simple, and therefore, the double-row wheel hub bearing unit is convenient to manufacture and assemble.
Description
Technical field
The utility model relates to a kind of automobile component, is specifically related to a kind of hub-bearing unit with Magnetic induction coil, can be used for detecting and transmitting the rotating speed of wheel.
Background technique
At present, continuous development along with automotive electronics science and technology, the device of using the vehicle wheel rotational speed signal as the needs of ABS antilock braking system (ABS) and so on is more and more, automobile hub bearing is the vitals that connects automotive body and wheel, still the main installation carrier of the sensing device relevant with vehicle wheel rotational speed simultaneously, generally comprise a flange plate, extended axially axle journal on the card of flange plate, axle journal is provided with bearing unit, bearing inner race at bearing unit arranges a Magnetic induction coil simultaneously, during use, bearing outer ring at bearing unit arranges corresponding sensor, and like this, flange plate can drive the Magnetic induction coil rotation by bearing inner race when wheel rotates, produce relative rotation thereby make between Magnetic induction coil and the sensor, sensor will correspondingly be exported the tach signal of a wheel.For example, on Chinese patent literature disclosed a kind of the double row tapered roller bearing unit of abs sensor " band ", notice of authorization number is CN2825386Y, it comprises flange plate, flange plate is provided with inner ring, and inner ring is provided with the outer ring outward, is provided with rolling element and seal ring between outer ring and the inner ring, inner ring is divided into narrow inner ring and wide inner ring, respectively be provided with a row rolling element on it, wide inner ring is provided with step, and the step external diameter is provided with gear ring, the outer ring is provided with through hole, and abs sensor is located in the through hole.Though this type of hub-bearing unit can be used for detecting and transmitting corresponding vehicle wheel rotational speed signal, but because its gear ring that is used for induction is arranged between the inside and outside circle of bearing unit, thereby there is a problem of installation and maintenance inconvenience, simultaneously, when high vehicle speeds, bearing unit can rise because of the friction temperature, like this, the induction that is arranged on bearing unit inside with gear ring and sensor when being subjected to bearing working easily temperatures involved and break down or reduce the accuracy of its signal.
The model utility content
The purpose of this utility model be for solve existing have detect and the automobile hub bearing existing Magnetic induction coil installation and maintenance inconvenience of transfer car wheel speed function and easy temperatures involved during because of bearing working reduce vehicle wheel rotational speed signal accuracy and reliability problems, a kind of biserial hub-bearing unit is provided, not only be convenient to the installation and maintenance of Magnetic induction coil, temperatures involved in the time of simultaneously can avoiding bearing working improves accuracy and the reliability of vehicle wheel rotational speed signal significantly.
To achieve these goals, the utility model is by the following technical solutions: a kind of biserial hub-bearing unit, comprise the flange plate and the Magnetic induction coil that extend axially axle journal, in the axis hole of axle journal, be provided with spliced bearing inner race coaxially, axis hole is provided with two outer raceway grooves, then be provided with the interior raceway groove of two correspondences on the bearing inner race, be provided with the rolling element that is separated by retainer between the corresponding inside and outside raceway groove, gap at bearing inner race two ends and axis hole is respectively equipped with black box, and described Magnetic induction coil is bonded on one of them black box.
Raceway groove outside the utility model arranges by the axis hole at axle journal, make axle journal play the effect of bearing outer ring simultaneously, like this, axle journal, bearing inner race, retainer, rolling element namely constitutes a bearing unit, thereby simplify the structure, directly be bonded in Magnetic induction coil on the black box simultaneously, make Magnetic induction coil be positioned at the outside of bearing unit, correspondingly, its sensor also can be arranged on the outside of bearing unit, like this, the assembling of Magnetic induction coil can not have influence on bearing unit, thereby can simplify the installation and removal of Magnetic induction coil significantly, and make things convenient for its M R at ordinary times, particularly, can reduce the heat of bearing unit generation when work to the influence of Magnetic induction coil and sensor, be conducive to improve the reliability and stability of vehicle wheel rotational speed signal.
As preferably, the black box that is arranged at bearing inner race and axis hole gap comprises inner ring sleeve and the outer ring set of screens on axis hole that is set on the bearing inner race, the inner of outer ring set inwardly radially is bent to form the Sealing positioning ring, coat on the circumferential surface of ring set and the Sealing positioning ring outside rubber seal is set, outer end on the inner ring sleeve outwards is bent to form flanged surface, rubber seal is by matrix and somely constitute from the matrix sealing lip that forms that stretches out, and described sealing lip is resisted against on the inner side surface and flanged surface of inner ring sleeve.
Existing seal ring and bearing inner race, bearing outer ring forms the relation of applying respectively, thereby impurity such as dust can be by in seal ring and the bearing, slit, two places between the outer ring enters in the bearing unit, between the inner ring sleeve and bearing inner race in the black box of the present utility model, and all adopt interference fit between outer ring set and the axis hole, connect thereby form closely, rubber seal then is coated on outer shroud and puts, that is to say, the Sealing positioning ring of outer ring set is to be embedded in the matrix of rubber seal, thereby impurity such as dust has only and just can enter in the bearing unit by the unique slit between rubber seal and the inner ring sleeve, thereby be conducive to improve its sealing effect, prolong the working life of bearing unit.
As preferably, sealing lip comprises two against axial seal lip and the radial seal lip against the inner ring sleeve flanged surface of inner ring sleeve circumferential surface.
The axial seal lip can play the axial seal effect to inner ring sleeve, and the radial seal lip can play the effect of end face seal, double seal axial and end face can improve sealing effect significantly, particularly, by suitably adjusting the axial distance between the inside and outside ring set, the sealing effect of the radial seal lip after can recovering to wear and tear, thereby be conducive to prolong working life of black box.
As preferably, two axial seal lips extend to the V-shaped inclination of inner ring sleeve circumferential surface from matrix, and described radial seal lip tilts to extend to the axial direction away from axis hole from matrix.
Like this, two axial seal lips tilt to extend towards the axial two ends of inner ring sleeve respectively and are resisted against on the inner ring sleeve, when being subjected to outside extruding force, axial seal lip and the radial seal lip of axially going up outer end can be fitted on the inner ring sleeve more closely, invade in the bearing unit from the outside to avoid impurity such as dust, an axial seal lip axially going up the inner end can prevent that then the lubricant oil in the bearing unit from outwards flowing out, and from being conducive to strengthen its sealing effect.
As preferably, described Magnetic induction coil is bonded in the flanged surface outside near the inner ring sleeve of flange plate one end black box, and described flange plate radially is provided with the sensor mounting hole that holds sensor in the position of corresponding Magnetic induction coil.
By the sensor mounting hole that holds sensor radially is set on flange plate, be conducive to simplified structure, make things convenient for installation and the replacing of sensor, and the external diameter of flange plate is big, thereby corresponding sensor mounting hole has enough spaces with sensor installation.
As a kind of replacement scheme of above-mentioned preferred version, described Magnetic induction coil is bonded in the flanged surface outside near the inner ring sleeve of flange plate one end black box, and the axis hole of axle journal extends out at the flange plate place and is formed for the fixedly installation screw of end cover type sensor.
The end cover type sensor be conducive to adjust and Magnetic induction coil between distance, thereby be conducive to the stable collection of signal, improve reliability and the accuracy of tach signal.
As preferably, spliced bearing inner race is spliced to form vertically by left inner ring and right inner ring, the splicing surface of left side inner ring and right inner ring is positioned at the axial neutral position of bearing inner race, described left inner ring is respectively equipped with right inner ring outer side surface and is connected annular groove, described retainer connects the annular groove place at corresponding two and is provided with Joining clasp respectively, and Joining clasp is obliquely installed and is positioned in corresponding being connected in the annular groove towards the splicing surface of left inner ring and right inner ring.
Bearing inner race adopts splicing construction, can make things convenient for the assembling of bearing unit, and the splicing surface of left inner ring and right inner ring is positioned at the axial neutral position of bearing inner race, thereby left inner ring and right inner ring formation symplex structure, can make things convenient for its manufacturing, left inner ring and right inner ring card an overall structure can be formed and Joining clasp is set on the retainer, compact overall structure can be made again, and convenient for assembly.
Therefore, the utlity model has following beneficial effect: be convenient to the installation and maintenance of Magnetic induction coil, the temperatures involved in the time of can avoiding simultaneously bearing unit work improves accuracy and the reliability of vehicle wheel rotational speed signal significantly, bearing unit simple in structure is convenient to make and assembling.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is another kind of structural representation of the present utility model.
Fig. 3 is the structural representation of bearing unit.
Fig. 4 is the structural representation of black box
Among the figure: 1, flange plate 11, axle journal 12, axis hole 13, outer raceway groove 2, Magnetic induction coil 3, bearing unit 31, bearing inner race 311, left side inner ring 312, right inner ring 313, connect annular groove 314, interior raceway groove 33, rolling element 34, retainer 341, Joining clasp 4, black box 41, inner ring sleeve 411, flanged surface 42, outer ring set 421, Sealing positioning ring 43, rubber seal 431, matrix 432, axial seal lip 433 radial seal lips 5, sensor mounting hole 6, screw is installed
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1, a kind of biserial hub-bearing unit of the present utility model, comprise flange plate 1 and a Magnetic induction coil 2 of extending axially axle journal 11, in the axis hole 12 of axle journal, be provided with spliced bearing inner race 31 coaxially, spliced bearing inner race is spliced to form vertically by left inner ring 311 and right inner ring 312, left side inner ring and right inner ring adopt symplex structure, thereby make the splicing surface of left inner ring and right inner ring be positioned at the axial neutral position of bearing inner race, to make things convenient for the manufacturing of bearing inner race.Two outer raceway grooves 13 are set on the axis hole, correspondingly, corresponding interior raceway groove 314 is set respectively on the left inner ring of bearing inner race and right inner ring, simultaneously, between the inside and outside raceway groove of two row of correspondence, rolling element 33 is set respectively, two row rolling elements are by retainer 34 locations spaced, like this, axle journal, bearing inner race, retainer, rolling element namely constitute a bearing unit 3, that is to say, axle journal plays the effect of bearing outer ring simultaneously, thereby is conducive to simplify overall structure and installation.Bearing unit is two row ball bearing, thereby has advantages of high bearing capacity, and the axle (not shown) that connects wheel is located in the bearing inner race.
In addition, as shown in Figure 3, respectively arrange one with right inner ring outer side surface near the splicing surface place at left inner ring and be connected annular groove 313, retainer connects the annular groove position at corresponding two a Joining clasp 341 then is set respectively, two Joining clasps are obliquely installed and are positioned in corresponding being connected in the annular groove towards the splicing surface of left inner ring and right inner ring, thereby it is make left inner ring and right inner ring card form an overall structure, and convenient for assembly.
Enter bearing unit inside for fear of impurity such as dusts, we can arrange black box 4 respectively in the gap of bearing inner race two ends and axis hole, meanwhile, Magnetic induction coil can be bonded on the end face of one of them black box, thereby can simplify the installation and removal of Magnetic induction coil significantly, and the assembling of Magnetic induction coil can not have influence on bearing unit, thereby make things convenient for Magnetic induction coil M R at ordinary times, particularly, can reduce the heat of bearing unit generation when work to the influence of Magnetic induction coil and sensor, be conducive to improve the reliability and stability of vehicle wheel rotational speed signal.
As shown in Figure 4, black box comprises the inner ring sleeve 41 and the outer ring set 42 of screens accordingly on axis hole that are set on the bearing inner race, the inner of outer ring set inwardly radially is bent to form Sealing positioning ring 421, coat on the circumferential surface of ring set and the Sealing positioning ring outside rubber seal 43 is set, rubber seal is by matrix 431 and somely constitute from the matrix sealing lip that forms that stretches out, that is to say, the circumferential surface of outer ring set and Sealing positioning ring are to be embedded in the matrix of rubber seal, outer end on the inner ring sleeve outwards is bent to form flanged surface 411, and sealing lip comprises two against axial seal lip 432 and the radial seal lip 433 against the inner ring sleeve flanged surface of inner ring sleeve circumferential surface.Two axial seal lips extend to the V-shaped inclination of inner ring sleeve circumferential surface from matrix, and the radial seal lip tilts to extend to the axial direction away from axis hole from matrix.Like this, axial seal lip and radial seal lip can be used for avoiding impurity such as dust to invade in the bearing unit from the outside, and another axial seal lip can prevent that then the lubricant oil in the bearing unit from outwards flowing out, and from being conducive to strengthen its sealing effect.
Further, as shown in Figure 1, be bonded in Magnetic induction coil on the end face of black box and preferably should be bonded in the flanged surface outside near the outer ring set of flange plate one end, and the position of corresponding Magnetic induction coil radially arranges sensor mounting hole 5 on flange plate, being used for sensor installation, and correspondingly transmit the vehicle wheel rotational speed signal.Certainly, radially also available end cover type sensor is alternative for the sensor of She Zhiing, and correspondingly, as shown in Figure 2, we can extend out the axis hole of axle journal to form at the flange plate place one screw 6 is installed.Like this, by the circumferential surface at the end cover type sensor outside thread is set, can easily the end cover type sensor threads be connected and install in the screw, this end cover type sensor need arrange a through hole in the center certainly, in order to allow the axle that connects wheel pass from the end cover type sensor.By adjusting the degree of depth that is screwed into of end cover type sensor, can adjust the distance between itself and the Magnetic induction coil easily, thereby be conducive to the stable collection of signal, improve reliability and the accuracy of tach signal.
Magnetic induction coil in the present embodiment directly is bonded on the black box, make Magnetic induction coil be positioned at the outside of bearing unit, correspondingly, its sensor (not shown) also can be arranged on the outside of bearing unit, like this, the assembling of Magnetic induction coil can not have influence on bearing unit, thereby can simplify the installation and removal of Magnetic induction coil significantly, and make things convenient for its M R at ordinary times, particularly, can avoid the heat of bearing unit generation when work to the influence of Magnetic induction coil and sensor, be conducive to improve the reliability and stability of vehicle wheel rotational speed signal.In addition, therefore the formation integrative-structure because Magnetic induction coil and black box unite two into one is conducive to simplified structure, and convenient the manufacturing.The axle that is connected with wheel is located in the bearing inner race, and when wheel rotated, bearing inner race drove Magnetic induction coil by inner ring sleeve and rotates synchronously, and cutting magnetic line when Magnetic induction coil rotates makes sensor produce corresponding electrical signal and is transported to the control system of vehicle.
Claims (7)
1. biserial hub-bearing unit, comprise the flange plate (1) and the Magnetic induction coil (2) that extend axially axle journal (11), it is characterized in that, in the axis hole (12) of axle journal, be provided with spliced bearing inner race (31) coaxially, axis hole is provided with two outer raceway grooves (13), then be provided with the interior raceway groove (314) of two correspondences on the bearing inner race, in corresponding, be provided with the rolling element (33) that is separated by retainer (34) between the outer raceway groove, be respectively equipped with black box (4) in the gap of bearing inner race two ends and axis hole, described Magnetic induction coil is bonded on one of them black box.
2. a kind of biserial hub-bearing unit according to claim 1, it is characterized in that, the black box that is arranged at bearing inner race and axis hole gap comprises inner ring sleeve (41) and the outer ring set (42) of screens on axis hole that is set on the bearing inner race, the inner of outer ring set inwardly radially is bent to form Sealing positioning ring (421), coat on the circumferential surface of ring set and the Sealing positioning ring outside rubber seal (43) is set, outer end on the inner ring sleeve outwards is bent to form flanged surface (411), rubber seal is by matrix (431) and some sealing lip formations that stretches out and form from matrix, and described sealing lip is resisted against on the inner side surface and flanged surface of inner ring sleeve.
3. a kind of biserial hub-bearing unit according to claim 2 is characterized in that, sealing lip comprises two against axial seal lip (432) and the radial seal lip (433) against the inner ring sleeve flanged surface of inner ring sleeve circumferential surface.
4. a kind of biserial hub-bearing unit according to claim 3 is characterized in that, two axial seal lips extend to the V-shaped inclination of inner ring sleeve circumferential surface from matrix, and described radial seal lip tilts to extend to the axial direction away from axis hole from matrix.
5. according to claim 2 or 3 or 4 described a kind of biserial hub-bearing units, it is characterized in that, described Magnetic induction coil is bonded in the flanged surface outside near the inner ring sleeve of flange plate one end black box, and described flange plate radially is provided with the sensor mounting hole (5) that holds sensor in the position of corresponding Magnetic induction coil.
6. according to claim 2 or 3 or 4 described a kind of biserial hub-bearing units, it is characterized in that, described Magnetic induction coil is bonded in the flanged surface outside near the inner ring sleeve of flange plate one end black box, and the axis hole of axle journal extends out at the flange plate place and is formed for the fixedly installation screw (6) of end cover type sensor.
7. according to claim 1 or 2 or 3 or 4 described a kind of biserial hub-bearing units, it is characterized in that, spliced bearing inner race is spliced to form vertically by left inner ring (311) and right inner ring (312), the splicing surface of left side inner ring and right inner ring is positioned at the axial neutral position of bearing inner race, described left inner ring is respectively equipped with right inner ring outer side surface and is connected annular groove (313), described retainer connects the annular groove place at corresponding two and is provided with Joining clasp (341) respectively, and Joining clasp is obliquely installed and is positioned in corresponding being connected in the annular groove towards the splicing surface of left inner ring and right inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320168206 CN203214594U (en) | 2013-04-08 | 2013-04-08 | Double-row wheel hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320168206 CN203214594U (en) | 2013-04-08 | 2013-04-08 | Double-row wheel hub bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214594U true CN203214594U (en) | 2013-09-25 |
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ID=49204137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320168206 Expired - Fee Related CN203214594U (en) | 2013-04-08 | 2013-04-08 | Double-row wheel hub bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317834A (en) * | 2014-06-30 | 2016-02-10 | Skf公司 | Rolling bearing unit for exchangeable wheel bearing unit |
| CN106080030A (en) * | 2015-04-29 | 2016-11-09 | 斯凯孚公司 | The assembling process of bearing unit hub flange |
-
2013
- 2013-04-08 CN CN 201320168206 patent/CN203214594U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317834A (en) * | 2014-06-30 | 2016-02-10 | Skf公司 | Rolling bearing unit for exchangeable wheel bearing unit |
| CN105317834B (en) * | 2014-06-30 | 2019-05-10 | Skf公司 | Roller bearing unit for replaceable wheel bearing unit |
| CN106080030A (en) * | 2015-04-29 | 2016-11-09 | 斯凯孚公司 | The assembling process of bearing unit hub flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20200408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |