CN101379312A - Bearing device for wheel - Google Patents
Bearing device for wheel Download PDFInfo
- Publication number
- CN101379312A CN101379312A CNA200680046591XA CN200680046591A CN101379312A CN 101379312 A CN101379312 A CN 101379312A CN A200680046591X A CNA200680046591X A CN A200680046591XA CN 200680046591 A CN200680046591 A CN 200680046591A CN 101379312 A CN101379312 A CN 101379312A
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- outside
- outer ring
- tapered roller
- wheel
- retainer
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Abstract
A bearing device for a wheel, having improved assembling workability. This is achieved by facilitating assembly of a retainer and tapered rollers into an outer ring having a flange that is formed on the inner peripheral surface on the outboard side of the outer ring. Recesses (27, 28) are formed in a large end face (25) and a small end face (26) of a tapered roller (4a) on the outboard side. Projections (35, 36) to be inserted in the recesses (27, 28) are formed in the retainer (6a) on the outboard side. The diameter (A) of the circle circumscribing the tapered rollers (4a) before they are inserted into a hub ring is set smaller than the inner diameter (B) of the flange section (20). When the hub ring (1) is inserted into the outer ring (3), the tapered rollers (4a) move in the radial direction to cause the diameter (A) of the circumscribing circle to be greater than the inner diameter of the flange, and as a result, the tapered rollers (4a) can be received in a specified position.
Description
Technical field
The present invention relates to a kind of bearing apparatus for wheel.
Background technique
As bearing apparatus for wheel, the known hub unit form (patent documentation 1 and patent documentation 2) that has as illustrated in fig. 8, has wheel hub circle 101 and outer ring 103.This bearing apparatus for wheel have wheel hub circle 101, externally embedded type be fixed on inner ring 102 on this wheel hub circle 101, be configured in these wheel hub circles 101 and inner ring 102 around outer ring 103, be installed in tapered roller 104a, 104b between this outer ring 103 and wheel hub circle 101 and the inner ring 102, have retainer 106a, the 106b of the cavity (Port ケ Star ト) that keeps tapered roller 104a, 104b.
Usually, in this bearing apparatus for wheel, by following method assembling.At first, from state shown in Figure 9, tapered roller 104a and the retainer 106a with the outside is assembled on the outer ring 103 as illustrated in fig. 10.After this, 103 the outside fitting tight parts 112a in the outer ring.
Then, as illustrated in fig. 11, the internal side diameter assembling wheel hub circle 101 in the outer ring 103 that tapered roller 104a, retainer 106a and sealed member 112a are installed.After this, in on outer circumferential face, having on the inner ring 102 of raceway 113, installation is pre-formed the tapered roller 104b and the retainer 106b (following these assembly parts are called " roller assembly parts ") of the inboard of assembly parts, with its outer being embedded on the minor diameter part 110, sealed member 112 is installed again.After this, reinforce to the external diameter direction, as illustrated in fig. 8 inner ring 102 is clamped between the reinforcing portion 116 of the stepped part 115 of wheel hub circle 101 and wheel hub circle 101 by end 114 with the inboard of outer ring 103.
Patent documentation 1: Japanese kokai publication hei 7-44322 communique
Patent documentation 2: German DE20209017U1
In the arranged outside of outer ring 103 in the what is called tapered bearing of the 3rd generation of lip part 117, assemble the roller assembly parts as described above in advance in the inboard, it can be assembled on the outer ring.But, in the outside, assembled after the roller assembly parts 111a, just it can not be assembled on the outer ring 103.If assembled roller assembly parts 111a, as shown in Figure 8, because the circumcircle of tapered roller 104a footpath A is bigger than the internal diameter B of lip part 117, under this state, roller assembly parts 111a will interfere with lip part 117, can not assemble.
Therefore, as illustrated in fig. 12 in the past, at first be assemblied in retainer 106a on the outer ring 103 after, tapered roller 104a is installed on the retainer 106a from the internal side diameter of retainer 106a single or multiplely.In this method, it is bad to have an assembling operation, needs the problem of complicated assembling fixture (assembling device) simultaneously.
Summary of the invention
The objective of the invention is to solve the problems of the technologies described above, provide a kind of and can assemble the roller assembly parts in the outside simply, can improve the bearing apparatus for wheel of assembling operation for the outer ring that on the inner peripheral surface in the outside, is provided with lip part.
Bearing apparatus for wheel of the present invention, has the wheel hub circle, externally embedded type is fixed on the inner ring on the wheel hub circle, the outer ring, be installed in a plurality of tapered rollers in the outside between outer ring and the wheel hub circle, be installed in a plurality of tapered rollers of the inboard between outer ring and the inner ring, the outside and inboard retainer with the cavity that keeps tapered roller, arranged outside at the inner peripheral surface of outer ring has lip part, being characterized as of described bearing apparatus for wheel, between the tapered roller in the outside and retainer, allow relatively moving of radial direction, and the circumscribed circle diameter of the tapered roller in outside row can be got following size of the internal diameter size of lip part and the size bigger than the internal diameter size of lip part.
Thus, the assembling stage before the wheel hub circle inserts, because the circumscribed circle diameter of the tapered roller in outside row is the internal diameter size following (circumscribed circle diameter is identical or littler than it with the internal diameter size of wheel hub circle) of lip part, even lip part is set on the outer ring, also the roller assembly parts of making in advance can be installed to the outer ring from the outside.After this, in the time of in the interior week that the wheel hub circle is inserted into the outer ring, tapered roller moves on the external diameter direction, and the circumscribed circle diameter of tapered roller row becomes bigger than the internal diameter size of lip part.Each tapered roller is incorporated on the regular position thus, and the installation of the roller assembly parts in the outside finishes.At this, " circumscribed circle diameter " means under a plurality of tapered roller settings state in a circumferential direction, with the external diameter of a circle of outer periphery of the large end face of each tapered roller.
In this structure, in order to prevent coming off of roller, hope the end face of the tapered roller in the outside and with the face of the opposed retainer of this end face in, protuberance is set on any one, recess is set on another simultaneously, this protuberance is engaged, restriction tapered roller relatively moving on radial direction to internal side diameter with recess.Same mobile restriction also can be by making the outside tapered roller outer circumferential face with contact and carry out with the face (inner face of opposed cavity in a circumferential direction) of its opposed retainer, but in the present invention, because in the front and back that the roller assembly parts are installed on the outer ring, it is bigger poor to produce on the radial direction position of tapered roller, in order to carry out mobile restriction reliably to internal side diameter, just must increase the wall thickness of retainer, cause bearing size to strengthen.To this,, just can avoid this problem if be above-mentioned structure.
If the internal diameter size of the minimum diameter portion of the retainer in the outside is bigger slightly than the outside dimension of the outer circumferential face of wheel hub circle opposed with it, can make the retainer after the assembling possess the aligning effect, prevent the off-centre of retainer.
If the outside dimension of the maximum outside diameter portion of the retainer in the outside is slightly littler than the internal diameter size of the lip part of outer ring, can not interfere with lip part, retainer can be inserted in the outer ring reliably, and the retainer off-centre after can preventing to assemble.
The invention effect
According to the present invention,, also the roller assembly parts in the outside can be assembled on the outer ring even under the situation that lip part is set on the outer ring.And, tapered roller is being accommodated on the regular position on the external diameter direction movably by the wheel hub circle is inserted in the outer ring.Therefore, can improve assembling operation, improve producibility.And can not need complicated assembling device, reduce cost.
Description of drawings
Fig. 1 is the sectional drawing that the bearing apparatus for wheel of embodiments of the invention is shown.
Fig. 2 is the amplification profile that the relation of the tapered roller of aforementioned bearing apparatus for wheel and retainer is shown.
Fig. 3 is the Z-Z line sectional drawing of earlier figures 2.
Fig. 4 is the amplification profile of the tapered roller of aforementioned bearing apparatus for wheel.
Fig. 5 shows the retainer of aforementioned bearing apparatus for wheel, (a) is unfolded drawing, (b) for wanting portion's amplification profile.
Fig. 6 be illustrate aforementioned bearing apparatus for wheel assembled state want portion's amplification profile.
Fig. 7 be illustrate aforementioned bearing apparatus for wheel assembled state want portion's amplification profile.
Fig. 8 is the sectional drawing of bearing apparatus for wheel in the past.
Fig. 9 is the sectional drawing that the outer ring of bearing apparatus for wheel in the past is shown.
Figure 10 be bearing apparatus for wheel in the past is shown assembling midway want portion's sectional drawing.
Figure 11 be bearing apparatus for wheel in the past is shown assembling midway want portion's amplification profile.
Figure 12 is the explanatory drawing of problem points that the assembling procedure of bearing apparatus for wheel in the past is shown.
Symbol description
1 wheel hub circle, 2 inner rings, 2a minor diameter part, 2b tapering, 3 outer rings, 5 cavitys, 6a, 6b retainer, 7 interior edge faces, 8 wheel hub circle bodies, 8b tapering, footpath portion among the 8c, the 8d minor diameter part, 9 flange part, 10 bolt members, 11, raceway in 13,12 splined holes, 14 step surfaces, 15 reinforcing portion, 16,17 outer raceways, 18 outer ring bodies, 19 flange part, 20 lip parts, 21,23 flange surfaces, 22 lip parts, 24a, the 24b sealed member, 25 large end faces, 26 small end faces, 27,28 recesses, 30 big footpath ring portions, 31 path ring portions, 32 post portions, 33,34 axial ends, 35,36 protuberances, 40,41 roller assembly parts
Embodiment
Below, according to Fig. 1～Fig. 7 embodiments of the invention are described.
Bearing apparatus for wheel as illustrated in fig. 1, have wheel hub circle 1, externally embedded type is fixed on the inner ring 2 on this wheel hub circle 1, the outer ring 3 on every side that is configured in these wheel hub circles 1 and inner ring 2, the tapered roller 4a that is installed in the outside between this outer ring 3 and the wheel hub circle 1, the tapered roller 4b that is installed in the inboard between outer ring 3 and the inner ring 2, the outside with the cavity 5 that keeps tapered roller 4a, 4b and inboard retainer 6a, 6b.
Wheel hub circle 1 has the wheel hub circle body 8 cylindraceous that possesses minor diameter part 8d in the inboard, and the flange part 9 that is arranged on the outside of this wheel hub circle body 8.Wheel hub circle 1 is installed in and omits on the illustrated wheel by connecting the bolt member 10 in the through hole on being arranged at this flange part 9.In addition, on the outer circumferential face of wheel hub circle body 8, be formed with the interior raceway 11 of the tapered roller 4a rolling that makes the outside.Than the wheel hub circle body 8 of flange part 9 insides have with the opposed part 8a of the 1st sealed member 24a described later, form in tapering 8b, the middle footpath 8c of portion and the aforementioned minor diameter part 8d of raceway 11.At the central part of wheel hub circle 1, be provided with and be used for the splined hole 12 that the outer ring sleeve part with constant velocity joint is connected with spline.Be arranged on the wheel hub circle 1 interior raceway 11 by outside-in gradually the conical surface of contracted diameter constitute.
The 1st outer raceway 16 by outside-in gradually the conical surface of diameter reduction constitute, opposed with the interior raceway 11 of wheel hub circle 1, tapered roller 4a is in these between raceway 11 and the outer raceway 16.The 2nd outer raceway 17 by from the inboard laterally gradually the conical surface of diameter reduction constitute, opposed with the interior raceway 13 of inner ring 2, tapered roller 4b is in these between raceway 13 and the outer raceway 17.
By the 1st sealed member 24a sealing, seal by the 2nd sealed member 24b between the end of the inboard of outer ring 3 and the inner ring 2 between the wheel hub circle body 8 of the end in the outside of outer ring 3 and wheel hub circle 1.
As Fig. 2～shown in Figure 4, on the large end face 25 and small end face 26 of the tapered roller 4a in the outside, being respectively arranged with the roller centre is the recess 27,28 of central circular.In addition, also large end face 25 and small end face 26 are provided with recess 27,28 to Nei Ce tapered roller 4b.
In the inner face of cavity 5 with the large end face 25 and 26 opposed (axial vane surfaces) 33,34 of small end face of tapered roller on, be provided with the protuberance 35,36 in the recess 27,28 that is inserted into tapered roller 4a, 4b.As shown in Figure 3, has cavity clearance C between the outer circumferential face of opposed (circumferencial direction face) 37 and tapered roller 4a, 4b on the circumferencial direction in the inner face of cavity 50, each tapered roller 4a, 4b can be to the external diameter side shiftings, outer circumferential face up to each tapered roller 4a, 4b contacts with the circumferencial direction face 37 of retainer 6a, 6b, and cavity clearance C is till 0.Each tapered roller 4a, 4b engage on radial direction with the periphery wall of recess 27,28 and are limited to the protuberance 35,36 that moves through of internal side diameter.At this moment, the outer circumferential face of tapered roller 4a, 4b does not contact with the circumferencial direction face 37 of cavity 5, leaves cavity clearance C.
In this bearing apparatus for wheel, as Fig. 1 and shown in Figure 6, the internal diameter size C of the minimum diameter portion of the retainer 6a in the outside (path ring portion 31) ratio is big slightly with the outside dimension E of the outer circumferential face of this opposed wheel hub circle of minimum diameter portion.In the inboard, the outside dimension of wheel hub circle 1 is littler than the minimum diameter size C of retainer 6a simultaneously.In addition, the outside dimension F of the maximum outside diameter portion of the retainer 6a in the outside is slightly littler than the internal diameter size B of the lip part 20 of outer ring 3.Moreover the internal diameter size C of the minimum diameter portion (path ring portion 31) of inboard retainer 6b is bigger slightly than the outside dimension G of the minor diameter part 2a of inner ring 2, and the internal diameter size H of the big footpath ring portion 30 of retainer 6b is bigger slightly than the outside dimension I of the lip part 22 of inner ring 2.Because this structure can improve assembling performance, can prevent the off-centre of retainer 6a, 6b simultaneously, revolution smoothly is provided chronically.
Below, the assembling method of the bearing apparatus for wheel of previous constructions is described.At first, each tapered roller 4a, 4b are installed on retainer 6a, the 6b, the roller assembly parts 40 in the assembling outside and inboard roller assembly parts 41 are installed in each roller assembly parts 40,41 on the outer ring 3 respectively.At this moment, the roller assembly parts 40 in the outside are inserted by the opening portion from the outside, and inboard roller assembly parts 41 are inserted by the opening portion from the inboard.
In the inboard, because the opening portion of outer ring 3 be big footpath, and the 2nd outer raceway 17 is the conical surface of contracted diameter gradually laterally from the inboard, so can insert roller assembly parts 41 simply.
On the other hand, in the outside,,, make the circumscribed circle diameter A of tapered roller row 4a littler than the internal diameter size B of the lip part 20 of outer ring 3 so when the assembling of roller assembly parts 40, as shown in Figure 6, use suitable anchor clamps because outer ring 3 has lip part 20.Under this state, when the direction of arrow to Fig. 6 pushes roller assembly parts 40, roller assembly parts 40 are not interfered with the lip part 20 of outer ring 3, be assembled in the internal side diameter of outer ring 3 swimmingly.
Then, the internal side diameter in the outer ring 3 of having assembled roller assembly parts 40,41 inserts wheel hub circle 1 from the outside.At this moment, in the inboard,, minor diameter part 8d can be inserted into simply the internal side diameter of inboard retainer 6b because that the internal diameter size of the path ring portion 31 of retainer 6b is set at is bigger than the outside dimension of the minor diameter part 8d of wheel hub circle 1.
When being inserted into wheel hub circle 1 in the outer ring 3, the tapered roller 4a in the outside is pushed to the external diameter direction by the interior raceway 11 of wheel hub circle 1, with the row hole enlargement of tapered roller 4a, makes its circumscribed circle diameter A bigger than the internal diameter size B of lip part 20.As shown in Figure 7, contact with the 1st outer raceway 16 of outer ring 3 by tapered roller 4a, the tapered roller 4a that is between the interior raceway 11 of the 1st outer raceway 16 and wheel hub circle 1 is incorporated on the regular position.
After this, the internal side diameter of the roller assembly parts 41 that inner ring 2 insertions are inboard makes inner ring 2 embed the minor diameter part 8d of wheel hub circles 1.At this moment, tapered roller 4b contacts with the 2nd outer raceway 17 of outer ring 3 and the interior raceway 13 of inner ring 2, and tapered roller 4b is incorporated on the regular position.Under this state, insert Sealing 24b after, reinforce to the external diameter direction by end and to form reinforcing portion 15 inboard of wheel hub circle body 8, finish the assembling of bearing apparatus for wheel.In the running of bearing, the large end face 25 of the tapered roller 4b of the large end face 25 of the tapered roller 4a in the outside and inboard contacts with opposed flange surface 21,23 respectively, is born by lip part 20,22 from the thrust of tapered roller 4a, 4b.
In addition, adopt following program samely, at first will insert the outside diameter of inner rings 2, after this, it is embedded the minor diameter part 8d of wheel hub circle 1 by the roller assembly parts 41 that tapered roller 4b and retainer 6b constitute as the assembling method of inboard.
Bearing apparatus for wheel according to above embodiment, owing between the tapered roller 4a in the outside and retainer 6a, allow relatively moving of radial direction, and the circumscribed circle diameter A of the tapered roller in outside row gets following size of the internal diameter size B of lip part 20 and the size bigger than the internal diameter size B of lip part 20, even be provided with on the outside of outer ring 3 under the situation of lip part 20, also the roller assembly parts 41 in the outside can be assembled on the outer ring 3, and can after wheel hub circle 1 is inserted outer ring 3, tapered roller 4a moved to be accommodated on the regular position on the external diameter direction.Therefore assembling operation can be improved, producibility can be improved.And can not need complicated assembling device, reduce cost.
More than embodiments of the invention are illustrated, but the present invention is not defined to previous embodiment, can carry out various distortion.For example in the aforementioned embodiment, the circumscribed circle diameter before the insertion wheel hub circle of the tapered roller 4a in the outside is littler than the internal diameter size of the flange 20 of outer ring 3, but also can make circumscribed circle diameter identical with the internal diameter size of the lip part 20 of outer ring 3.In a word, as long as roller assembly parts 40,41 can be installed on the outer ring 3, wheel hub circle 1 is inserted in the outer ring 3 that roller assembly parts 40,41 have been installed gets final product.
In addition, the large end face 25 and the recess on the small end face 26 27,28 that are arranged on tapered roller 4a are circle in the aforementioned embodiment, but as long as tapered roller 4a can move on diametric(al), the shape of recess 27,28 can be arbitrarily, as can be ellipse or the rectangle that on diametric(al), extends, moreover, also can adopt square or trapezoidal different shape.In addition, also can on the large end face 25 of tapered roller 4a and small end face 26, protuberance 35,36 be set on the contrary, on the axial vane surface 33,34 of retainer 6a, 6b, form recess 27,28 with above.
In addition, in the above description, on the tapered roller 4b of inboard, also form recess 27,28, keep simultaneously the retainer 6b of this tapered roller 4b to be provided with the protuberance 35,36 chimeric, but also can in the roller assembly parts 41 of inboard, omit this protuberance and recess with recess 27,28.
Claims (4)
1, a kind of bearing apparatus for wheel, have wheel hub circle, externally embedded type and be fixed on inner ring, the outer ring on the wheel hub circle, a plurality of tapered rollers that are installed in the outside between outer ring and the wheel hub circle, a plurality of tapered rollers that are installed in the inboard between outer ring and the inner ring, the outside and inboard retainer with the cavity that keeps tapered roller, arranged outside at the inner peripheral surface of outer ring has lip part, being characterized as of described bearing apparatus for wheel
Between the tapered roller in the outside and retainer, allow relatively moving of radial direction, and the circumscribed circle diameter of the tapered roller in outside row can be got following size of the internal diameter size of lip part and the size bigger than the internal diameter size of lip part.
2, according to the described bearing apparatus for wheel of claim 1, it is characterized by,
The end face of the tapered roller in the outside and with the face of the opposed retainer of this end face in, protuberance is set on any one, simultaneously recess is set on another, this protuberance is engaged on radial direction with recess, restriction tapered roller relatively moving to internal side diameter.
3, according to claim 1 or 2 described bearing apparatus for wheel, it is characterized by,
The internal diameter size of the minimum diameter portion of the retainer in the outside is bigger slightly than the outside dimension of the outer circumferential face of wheel hub circle opposed with it.
4, according to each described bearing apparatus for wheel in the claim 1～3, it is characterized by,
The outside dimension of the maximum outside diameter portion of the retainer in the outside is slightly littler than the internal diameter size of the lip part of outer ring.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005363755 | 2005-12-16 | ||
| JP363755/2005 | 2005-12-16 | ||
| JP299232/2006 | 2006-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101379312A true CN101379312A (en) | 2009-03-04 |
Family
ID=40421995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200680046591XA Pending CN101379312A (en) | 2005-12-16 | 2006-12-13 | Bearing device for wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101379312A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727133A (en) * | 2012-10-15 | 2014-04-16 | 洛阳伊崧精密轴承技术开发有限公司 | Whole-stamping retainer structure for tapered roller bearings |
| CN106895078A (en) * | 2015-12-17 | 2017-06-27 | 恩特恩-斯恩尔轴承公司 | For the lubrication rolling bearing of root of blade |
| CN107269709A (en) * | 2013-05-07 | 2017-10-20 | 葆德电气公司 | The spherical roller bearing retainer of surface and the inward flange radially outward rotated is contacted with cylindrical guide |
| CN109642616A (en) * | 2016-08-03 | 2019-04-16 | 舍弗勒技术股份两合公司 | Method and apparatus for assembling angular contact roller bearing |
-
2006
- 2006-12-13 CN CNA200680046591XA patent/CN101379312A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727133A (en) * | 2012-10-15 | 2014-04-16 | 洛阳伊崧精密轴承技术开发有限公司 | Whole-stamping retainer structure for tapered roller bearings |
| CN107269709A (en) * | 2013-05-07 | 2017-10-20 | 葆德电气公司 | The spherical roller bearing retainer of surface and the inward flange radially outward rotated is contacted with cylindrical guide |
| CN106895078A (en) * | 2015-12-17 | 2017-06-27 | 恩特恩-斯恩尔轴承公司 | For the lubrication rolling bearing of root of blade |
| CN106895078B (en) * | 2015-12-17 | 2020-07-03 | 恩特恩-斯恩尔轴承公司 | Lubricated rolling bearing for blade root |
| CN109642616A (en) * | 2016-08-03 | 2019-04-16 | 舍弗勒技术股份两合公司 | Method and apparatus for assembling angular contact roller bearing |
| CN109642616B (en) * | 2016-08-03 | 2020-07-28 | 舍弗勒技术股份两合公司 | Method and device for assembling an angular contact roller bearing |
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