CN101402302B - Bearing device for drive wheel - Google Patents
Bearing device for drive wheel Download PDFInfo
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- CN101402302B CN101402302B CN 200810169576 CN200810169576A CN101402302B CN 101402302 B CN101402302 B CN 101402302B CN 200810169576 CN200810169576 CN 200810169576 CN 200810169576 A CN200810169576 A CN 200810169576A CN 101402302 B CN101402302 B CN 101402302B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0078—Hubs characterised by the fixation of bearings
- B60B27/0084—Hubs characterised by the fixation of bearings caulking to fix inner race
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Abstract
The invention relates to a bearing device for driving wheel. An end of a hub wheel 30 is plastically deformed towards outside diameter, a riveting portion 37 along radius direction is formed, and the hub wheel 30 and an inner wheel 40 arranged on periphery of the hub wheel are integrated. An outside shaft coupling component 72 of a constant velocity universal coupling 70 is pressed in bore of the hub wheel 30, and serrations 81 on bore of the hub wheel 30 is matched with a serration shaft 82 of the outside shaft coupling component 72. The length of the serrations 81 on bore of the hub wheel 30 along axial direction is in a standard range, and radius reducing of the serrations 81 associated with riveting is reduced.
Description
The application is to be on March 25th, 2002 applying date, and application number is 02800886.3, and denomination of invention is dividing an application of " driving bearing apparatus for wheel " (dividing an application and submitting day to being on February 12nd, 2007, and application number is 200710080108.6).
Technical field
But the present invention relates to the driving wheel (trailing wheel of FR (F/F back-wheel drive) car with respect to vehicle body free rotary ground supporting automobile etc., the front-wheel of FF car (F/F f-w-d), whole wheels of 4WD (four wheel drive) car) bearing arrangement.
Background technology
Driving bearing apparatus for wheel for automobile has proposed various forms of schemes according to its purposes.For example, its structure of bearing arrangement that driving wheel shown in Figure 12 is used is, when a wheel hub wheel 3 is turned to a bearing with multirow bearing section unit, but the outside coupling member 7a transmitting torque ground of constant-speed universal joint 7 was coupled on the interior week of taking turns hub wheel 3.
Bearing 1 has multiple row outer shroud 1a and interior ring 2a, 2b, and is assembled into the multiple row rotor 5 between outer shroud 1a and interior ring 2a, the 2b.In the bearing arrangement of example shown in the figure, the 2b in the multiple row one of in the ring is formed directly on the periphery of wheel hub wheel 3, and ring 2a is formed on the periphery of the interior wheel 4 on the end that is coupled to wheel hub wheel 3 in another.Axle head at outside coupling member 7a is screwed with nut 9, and by fastening this nut 9, interior 4 the back side 4a of taking turns contacts with the shoulder of outside coupling member 7a, internally takes turns 4 location, simultaneously, gives the prestrain of bearing inside with prescribed level.
But, in recent years, from axial dimension densification and the weight-saving viewpoint that makes bearing arrangement, propose not add nut, will take turns hub wheel 3 and interiorly take turns 4 integratedly by rivet, and bearing inside is given the scheme of prestrain.According to this scheme, interior take turns 4 be coupled to the wheel hub wheel 3 periphery on after, as shown in figure 13, to make its outside diameter plastic deformation from an interior end riveted joint taking turns the 4 wheel hub wheels 3 of giving prominence to, caulking part 3a is cooperated with interior 4 the back side 4a of taking turns, internally take turns 4 location, and give prestrain.Like this bearing arrangement (with reference to Figure 14) of assembling be a kind of can disassembly and assembly bearing 1 under the state of the bearing space of specified value and the what is called of constant-speed universal joint 7 structure of controlling oneself in retentive control, the fastening torque of nut 9 needn't reach the degree of the prestrain that gives bearing 1, need only the degree of packing into to easy fit ground greatly in the auxiliary section of wheel hub wheel 3 and outside coupling member 7a just enough, very convenient.
But, usually, in the drive wheel of automobile, for guaranteeing the stability of Vehicle Driving Cycle, must make the center of steering yoke bolt and the plunging joint center O of constant-speed universal joint 7 ' consistent.But, in the above in the situation of the end of described riveted joint wheel hub wheel 3, produce deviation in the position of the axial direction of the end face of caulking part 3a inevitably, like this, when the end contact of the shoulder 7a1 that makes outside coupling member 7a and caulking part 3a, plunging joint center O ' position produce deviation, be difficult to make steering yoke bolt center and plunging joint center O ' is consistent.
In addition, when forming flange shape caulking part 3a, utilize the Plastic Flow that is accompanied by riveted joint, as shown in figure 15, the end of the caulking part 3a side of formed serration 8a forms undergauge (representing with solid line) to the internal side diameter protuberance on the interior week of wheel hub wheel 3.When producing this undergauge, when the serrated shaft 8b (with reference to Figure 14) of outside coupling member 7a being pressed into the interior week of wheel hub wheel 3, need to be pressed into very large power, workability is worsened, and then, in the worst case, sometimes be pressed into itself and just can not realize.
As its countermeasure, as shown in figure 16, wheel hub wheel before broaching processing is in 3 interior weeks, make after the internal diameter φ d2 that estimates the undergauge position forms than the large expectation cut-off of the internal diameter φ d1 at other position, to internal diameter be the minor diameter of φ d1 and major diameter section that internal diameter is φ d2 both broach and be processed to form serration 8a (dotting), then, the end 3b with wheel hub wheel 3 rivets at outside diameter.
But, in this countermeasure, owing to be accompanied by the cut-off of riveted joint because different riveted joint conditions can produce large deviation, thus must carry out strict control to the φ d2 of major diameter section at least, improve manufacturing cost.
As other countermeasure, as shown in figure 17, in around the wheel hub wheel 3, meeting after the expectation riveted joint is produced excision a big chunk of the position X ' of undergauge, this part is made the barrel surface that does not apply broaching processing, serration 8a shortens in the effective length of axial direction, exists the fully problem of the transmitting torque between constant-speed universal joint 7 but in this case.
In addition, in the prior art, in the caulking part 3a of wheel hub wheel 3, known have the face that will dock with outside plunging joint 7a by pressure-sizing processing and turning processing to make smooth method (No. 11-5404, Unexamined Patent), even but want caulking part 3a is made tabular surface, because the flatness of end face is limited, add crookedly etc., sometimes produce small gap at the interface with the shoulder 7a1 of outside coupling member 7a.In turning driving, produce large moment load at bearing, when adding this moment load, bearing produces elastic deformation, meanwhile, the self-holding structure that the fastening force of nut 9 may be weakened has further been widened the gap of interface, and the problems such as dust and rainwater occur to enter from this gap.When dust and rainwater etc. are invaded the auxiliary section of wheel hub wheels 3 and serrated shaft 8b, can get rusty, not only accelerate the wearing and tearing of auxiliary section, and the auxiliary section fix, have to when disassembling increase the number of working processes, be not very desirable.
In addition, utilize in addition back-up ring that the serrated shaft 8b of outside coupling member 7a is connected removably with wheel hub wheel 3, and utilize containment member will take turns between hub wheel 3 and the serrated shaft 8b gap sealed structure (No. 2000-142009, JP) along radial direction, but because the gap of above-mentioned interface, compare increase with nut fastening structure as shown in figure 14 a lot, so firmly containment member must be installed, when increasing cost, can not prevent the decline of whole device rigidity, be not very desirable therefore.
Summary of the invention
The present invention its objective is in view of these problems:
1. prevent reliably the inconsistent of steering yoke bolt center and constant-speed universal joint center.
2. do not damage serration to the effective length of axial direction, prevent from being accompanied by the harmful effect that the undergauge of the serration etc. of riveted joint causes reducing cost.
3. prevent from getting rusty with place, serrated shaft auxiliary section at wheel hub wheel 3, the transaction capabilities when avoiding dismantling descends.
For achieving the above object, in the present invention, be equipped with: interior week has the external member of multiple row outer shroud; Have in the multiple row with the outer shroud subtend of external member and encircle, the first inner member, and form in the multiple row in the ring at least one of them the second inner member, can make the first inner member carry out the caulking part place of radial direction of plastic deformation at outside diameter with the first inner member and the second inner member articulate INT COMP discretely not; And be installed at multiple row rotor between external member and the INT COMP; And with the outside coupling member of constant-speed universal joint be coupled to with can carrying out transmission of torque interior week of the first inner member upper, make caulking part and outside coupling member in the driving bearing apparatus for wheel that axial direction contacts, in caulking part, it is made tabular surface with the part that outside coupling member contacts, the position deviation of this tabular surface at axial direction is limited in below the standard value.
At caulking part, make tabular surface by handle and outside coupling member contact portion, caulking part carries out face with outside coupling member centre via tabular surface and contacts, so, the footprint pressure of these contact portions can be reduced, the inordinate wear of contact portion can be suppressed.By tabular surface position deviation in axial direction is limited in the standard value, can stipulate correctly that constant-speed universal joint is in the position of axial direction, so, can be suppressed at Min. to the offset at the center of steering yoke bolt and plunging joint center, perhaps can make both in full accord, improve the stability of Vehicle Driving Cycle.
Tabular surface forms after the plastic deformation of caulking part.At this moment, when forming tabular surface with plastic working, the mobile caulking part that the blank that produces along with pressure occurs sometimes swells to internal side diameter, is difficult to outside plunging joint is inserted the interior week of the first inner member, so, preferably adopt machine up (turning and grinding) to form tabular surface." machine up " is the job operation that the excision blank forms, and can avoid reliably drawback recited above like this.
Above-mentioned standard value preferably is set as ± 0.2mm.If standard value is positioned at outside the scope of this numerical value, produce offset between steering yoke bolt center and the plunging joint center and can increase to the degree that can not ignore, can damage the riding stability of vehicle.
And then, if tabular surface with respect to the deviation limits of the squareness in axle center within standard value, can prevent the whirling of tabular surface, improve the leak tightness of contact part office.The standard value of this squareness preferably is set as 0.15mm.
When the tabular surface of caulking part is excessive with the difference of hardness of the surface portion of the member of the outside plunging joint that contacts with it, might produces skimming wear and reduce leak tightness in contact portion.Thereby, preferably set for their hardness substantially the same.
Between the formation of outside coupling member and the first inner member, carry out the transmission of torque section of transmission of torque.In the coupling member of the outside, if form comprise at least transmission of torque section, except with the zone of the contact part of tabular surface by heat-treating the hardened layer of generation, on the one hand, can improve the rigidity of transmission of torque section, can and the first inner member between carry out the failure-free transmission of torque.On the other hand, can make the part and the common unhardened tabular surface that contact with tabular surface form identical hardness.
Consist of the driving bearing apparatus for wheel of application of the present invention, be equipped with: the external member that has the multiple row outer shroud in interior week; Have in the multiple row with the outer shroud subtend of external member and encircle, the first inner member, and the second inner member of one of them at least in the ring in the formation multiple row, at the member that the end of the first inner member can not be engaged the first member and second component discretely at the flange shape caulking part of outside diameter riveted joint; Be installed at the multiple row movable body between external member and the INT COMP; Wherein, middle via carrying out the torque-transmitting mechanisms of transmission of torque by a plurality of tooth section of in axial direction extending is engaged with each other, the outside coupling member of constant-speed universal joint was pressed in the interior week of the first inner member.
In this wheel bearing arrangement, when riveting the end of the first inner member, sometimes because aforesaid Plastic Flow causes the transmission of torque tooth section of the first inner member to be out of shape to internal side diameter at caulking part.This phenomenon mainly shows in the mode that transmission of torque is stretched out with the side of the undergauge of tooth section (particularly its minor diameter) and this tooth section.In the prior art, can not be controlled at this crushed element the size of regulation, can only intactly shelve, thereby usually in transmission of torque distolateral and another distolateral profile of tooth generation deviation that makes with the axial direction of tooth section.
In contrast, in the present invention, the transmission of torque of the first inner member profile of tooth with tooth section is controlled in the standard range in the whole length of its axial direction.That is, no matter have or not above-mentioned distortion, the transmission of torque tooth section of the shape after all intactly keeping riveting after above-mentioned distortion, carries out positive processing to its profile of tooth, makes it to return in the standard range in the prior art.Can be suppressed at whereby near the caulking part transmission of torque with the deflection (outstanding width) of tooth section, so, after riveted joint, when outside coupling member being pressed in the first inboard coupling member in week, can avoid pressing-in force to enlarge markedly.
From this point of view, " standard range " of profile of tooth maximum pressure of allowing when being pressed into outside coupling member in the first inner member determines.In other words, determine the width of standard range according to the maximum pressure value that allows, the profile of tooth of transmission of torque with tooth section is controlled in this standard range.For example, on manufacturing line, the maximum pressure that allows can be larger situation under, set the width of standard range wider, otherwise, set the width of standard range narrower.
When the authorized pressure considered on general manufacturing line, the dimension limit of the outer bus diameter of the roller of the tooth section that the standard range of profile of tooth is preferably used transmission of torque is set as 60 μ m.
Here, the outer bus diameter (O.P.D) of roller also is referred to as ball pitch diameters (B.P.D) and the outer spot diameter (O.B.D) of steel ball, as shown in Figure 5, be defined as when being clamped in respectively roller (ball) 62 between two relative teeth groove 81c, between the roller 62 apart from M (seeing the regulation among the JI S B1062).
Concrete profile of tooth control for example can be carried out in the following manner.That is, after the turning of interior Zhou Jinhang to the first inner member, with the riveted joint of its end, at least near caulking part to for the second time turning of interior Zhou Jinhang of the first inner member, then, the processing of in this, broaching on week.
Perhaps, after the processing of being broached in the inside in interior week of the first inner member of the turning first time, rivet its end, then process to carrying out turning second time near major general's caulking part.
In above-mentioned any control step, use in the tooth section in the transmission of torque of the first inner member, near caulking part (particularly minor diameter), form the secondary turning face at least.In this secondary turning face, near the large diameter that forms major general's caulking part than other position.
In above-mentioned driving bearing apparatus for wheel, form negative gap between the interior ring that rotates by rotor and this rotor and the outer shroud, give bearing portion with prestrain, can improve bearing rigidity and bearing life.
In addition, by near the interior Zhou Zuowei guide part the caulking part of the first inner member, gap turn narrow in being somebody's turn to do between the periphery all and the with it outside coupling member of subtend, can suppress the distortion of the end of the first inner member that the load by the angle of contact direction causes, the life-span of improving bearing arrangement.
According to driving bearing apparatus for wheel of the present invention, consisted of by following part: the external member that forms the multiple row outer shroud in interior week; On periphery, form respectively ring and wheel mounting flange in the multiple row with the outer shroud subtend of this external member.Have and make the end to the INT COMP of the caulking part of outside diameter plastic deformation; Be installed at said external member and INT COMP each the ring between the multiple row rotor; With state that the caulking part of aforementioned INT COMP docks under dock, have in the middle of via torque-transmitting mechanisms can be to bar section transmitting torque, be embedded into the constant-speed universal joint of the outside coupling member of aforementioned INT COMP; Wherein, with being bearing on the vehicle body that wheel can rotate freely, in described driving bearing apparatus for wheel, it is characterized by, antirust processing is carried out in the auxiliary section of aforementioned INT COMP and outside plunging joint.Even dust and rainwater etc. are invaded the auxiliary section of INT COMP and outside coupling member whereby, can suppress it and get rusty, the workability in the time of also improving dismounting.
As aforementioned antirust processing, for example, if add antirust composition in the auxiliary section of INT COMP and outside coupling member, utilize its rust inhibition to be suppressed on the surface of auxiliary section and get rusty.In this case, if be filled with antirust composition in the gap of auxiliary section, the gap of auxiliary section can be stopped up, meanwhile, can prevent again the intrusion of dust and rainwater etc., improve its rust-proof effect.
As antirust composition, by the lining cement of use elastic system and the foaming agent of elastic system, utilize simple operation just can obtain the failure-free rust-proof effect.
As the said external member, can adopt respectively on interior week formation multiple row outer shroud in aggregates, form member by the vehicle body mounting flange in periphery.
Can adopt by ring and the wheel hub wheel of minor diameter end difference in the wheel mounting flange that has respectively periphery, the outside as aforementioned INT COMP; Be pressed into the member of the minor diameter end difference interior wheel formation interior, ring in periphery has the outside of wheel hub wheel.In this case, the end by making aforementioned minor diameter end difference can make wheel hub wheel and interior the wheel combine to outside diameter generation plastic deformation.
If utilize stationary member that the bar section of aforementioned INT COMP and outside coupling member in axial direction is fixed removably, so just can dismantle simply, assembling operation, further improve workability.
When INT COMP is installed the lid of its open-ended section of sealing, by covering at this aperture is set, can suppress the intrusions from peristome to the auxiliary section such as dust and rainwater.When lid is installed, utilize described aperture that the auxiliary section is communicated with outside atmosphere, with prevent the auxiliary section in press liter and prevent from covering the workability of installation exercise.And then, be mixed in the antirust composition of auxiliary section, remainder is discharged from described aperture.
Description of drawings
Fig. 1 is section-drawing and the main portion amplification profile of the bearing arrangement used of driving wheel according to the present invention.
Fig. 2 is formed in the amplification profile (radial direction) of the serration of wheel hub wheel on interior week of above-mentioned driving bearing apparatus for wheel.
Fig. 3 is the amplification profile of the main portion in the presentation graphs 1.
Fig. 4 is the amplification profile of the main portion in the presentation graphs 1.
Fig. 5 is the amplification profile (radial direction) of serration, is the outer bus diameter figure of explanation roller.
Fig. 6 is the section-drawing of INT COMP.
Fig. 7 is the section-drawing of INT COMP.
Fig. 8 is the section-drawing of INT COMP.
Fig. 9 represents to drive the other form of implementation section-drawing of bearing apparatus for wheel.
Figure 10 is that expression is according to driving bearing apparatus for wheel longitudinal diagram of the present invention.
Figure 11 is the another one embodiment longitudinal diagram of the bearing arrangement used of expression driving wheel according to the present invention.
Figure 12 is the driving bearing apparatus for wheel section-drawing of prior art.
Figure 13 is the amplification profile that carries out the driving bearing apparatus for wheel of interior location of taking turns and prestrain by riveted joint.
Figure 14 is the driving bearing apparatus for wheel of interior location of taking turns and prestrain is carried out in expression by riveted joint overall structure section-drawing.
Figure 15 is interior quick release structure is carried out in expression by riveted joint amplification profile.
Figure 16 is that the expression prior art is to the wheel hub wheel section-drawing of the example of the countermeasure of undergauge phenomenon.
Figure 17 is the driving bearing apparatus for wheel section-drawing of other countermeasure of expression prior art.
Figure 18 is the amplification profile of the driving bearing apparatus for wheel of expression prior art.
The specific embodiment
The below illustrates form of implementation of the present invention according to Fig. 1～Figure 11.In addition, in the following description, under the assembled state of vehicle, will be referred to as near a side in the outside of vehicle the outside, will be referred to as the inboard near the center side of vehicle.In Fig. 1, Fig. 3, Fig. 4, Fig. 6～Figure 11, the left side is the outside, and the right side is inboard.
Fig. 1 drives the bearing arrangement that wheel is used, and its structure is that the multiple row rotor 50 of packing between the INT COMP 20 that is fixed to the external member 10 on the vehicle body and is driven in rotation supports INT COMP 20 free to rotately.Multiple row rotor 50 utilizes the retainer 60 that is made of synthetic resin equally spaced to keep in the circumferential direction of the circle, and is installed between multiple row outer shroud 11 and the interior ring 21,22, rotates at each ring.Here, the example that cited is as rotor 50 when using ball, but also can use taper roller.
On the other hand, on the periphery of inboard of wheel hub wheel 30, have small diameter cylinder section 32, interiorly take turns 30 and be pressed in this small diameter cylinder section 32.In interior ring 21,22, inboard ring 21 is formed on interior the wheel on 40 the periphery, and the ring 22 in the outside directly is formed on the periphery of wheel hub wheel 30.On the axle center part of wheel hub wheel 30, in axial direction connect the mounting hole that ground forms outside coupling member 72 usefulness that the described constant-speed universal joint 70 in back is installed.
By making from interior end of taking turns 40 outstanding wheel hub wheels 30 to outside diameter plastic deformation, can utilizing the caulking part 37 of the radial direction of plastic deformation to be coupled to interior the wheel on 40 the inner side end 41 (back side), will take turns hub wheel 30 and interiorly take turns 40 and do not combine discretely.Utilize this caulking part 37 to take turns 40 and in axial direction locate with respect to wheel hub wheel 30 interior, and rotor 50 is given in the prestrain of giving regulation.This plastic deformation for example can be undertaken by swinging riveted joint processing.At this moment, the reduction in the gap that the distortion by the interior wheel 40 that will cause because of riveted joint processing etc. causes is taken into account, and bearing space is controlled at specified value in advance.The bearing space that obtains like this, even with described constant-speed universal joint 70 disassembly and assembly in back the time, the bearing space in the time of also can keeping at the beginning is constant.
Bearing space is set for negative.Whereby, the moment load during with respect to turning driving, prestrain can not disappear yet, and obtains high bearing rigidity.In addition, for vibration of the flange surface 31a of the wheel hub wheel 30 of thinking to brake the one of the main reasons of trembling etc., this negative clearance also is actv., can further improve processing safety and hand feel performance.
The first half more than the line of centers of Fig. 1 has omitted the shade line of expression section, but represents the cementation zone that formed by heat treatment with shade line.Wheel hub wheel 30 use iron-holder are that the carbon steel of 0.45～1.10 % by weight is processed to form by forging, the part that wherein represents with shade line, namely near the beginning base end part of wheel mounting flange 31 until the interior ring 22 in the outside, as with interior circular bead surface 39 of taking turns 40 interface, as with the whole zone of interior outer peripheral face of taking turns 40 auxiliary section (small diameter cylinder section) in, form cementation zone about Hv510～900 by heat treatment.
Because the caulking part 37 of the medial end of wheel hub wheel 30 needs can be with the ductility of its riveted joint, so be to divide as the not quench section of not carrying out Quenching Treatment to remain.Specifically, by making hardness in the scope of Hv200～300, can make it to keep to rivet the ductility of processing.
Process for quenching can be selected electro-high-frequency hardening, carburizing and quenching, and the known technology such as laser hardening, laser transformation hardening, but in the situation that above-mentioned quenching pattern is heat-treated, electro-high-frequency hardening is proper.As the electro-high-frequency hardening of surperficial cure process, effectively produce the characteristic of high-frequency heating, freely selected hardened layer is given its abrasion test, is improved its strength at repeated alternation.Particularly, the selection of case depth is freely, can control so that can not produce the impact that is caused by heat to the part outside the hardened layer, the performance of maintenance mother metal, thereby, be useful during residual not quench section as in the above-mentioned caulking part 37 in the mother metal.Particularly, unshowned in the drawings interior the wheel on 40 the whole surface carried out same Quenching Treatment.In addition, can utilize and soak the glass-hardened fire and reach interior cure process of taking turns 40 core always.
On this wheel bearing arrangement, one side is installed takes the joint angle one side that the rotary actuation of driving engine (not shown) is passed to the fixed type constant velocity universal coupling 70 that wheel is used.Constant-speed universal joint 70 will pass to outside coupling member 72 via inboard coupling member 74 and transmission of torque steel ball 75 in the middle of the torque of the tween drive shaft 77 of the part that consists of axle drive shaft.The outside coupling member 72 be equipped with when closing one end (outside), with the cup-shaped peristome 72a of its other end (inboard) opening and the 72b of bar section of axle shape, on the interior perimembranous of peristome 72a, in axial direction form a plurality of channel groove 71.Form a plurality of ball raceway grooves by this channel groove 71 with a plurality of channel groove 73 that are arranged on inboard coupling member 74 peripheral parts, by at each ball raceway groove configuration transmission of torque ball 75, consist of constant-speed universal joint 70.On the bisecting plane that each transmission of torque ball 75 is kept between two axles by bearing holdere 76.
The 72b of bar section of outside coupling member 72 is pressed in the above-mentioned mounting hole in wheel 30 interior weeks of hub wheel.Wheel hub wheel 30 and outside coupling member 72, but mutually carry out the combination of transmitting torque by tooth section engagement, the centre each other of in axial direction extending via the torque-transmitting mechanisms 80 that carries out transmission of torque.Torque-transmitting mechanisms 80 for example is made of the serration axial region 82 of the tooth section that uses with the serration 81 of tooth section with as the transmission of torque on the periphery of the 72b of bar section of coupling member 72 outside being formed on as the transmission of torque on the interior week that is formed on wheel hub wheel 30.The shape of the side 81b of the tooth of serration 81 and serration axial region 82 is arbitrarily, except curved surface shown in Figure 2 (for example involute curve), also can be plane (also comprising the conical surface).Omit among the figure, on serration 81 and serrated shaft 82, utilize respectively the heat treatment formation cementation zonees such as electro-high-frequency hardening.In addition, torque-transmitting mechanisms 80 also can be made of spline and castellated shaft.
After in the interior week that outside coupling member 72 is pressed into wheel hub wheel 30, fastening by the axle head that nut 61 is screwed into the 72b of bar section, constant-speed universal joint 70 is fixed on the wheel hub wheel 30.In this case, owing to having carried out prestrain control by caulking part 37, so the fastening force of nut 61 can reach and can prevent that constant-speed universal joint 70 is just enough with the degree of separating of wheel hub wheel 30.Thereby, and need the existing product of large fastening torque to compare in order to ensure the prestrain that is assembled into, can reduce significantly the fastening torque of nut 61.Be accompanied by the fastening of nut 61, the end face of the inboard of caulking part 37 contacts with the 72d of shoulder section of outside coupling member 72.In addition, except utilize nut 61 fastening, also can utilize stationary members such as pressing plate and circlip 90 etc. with outside coupling member 72 detachables be fixed on the wheel hub wheel 30 (with reference to Figure 10 and Figure 11).
In the bearing arrangement of the multiple row thrust ball bearing that uses example as shown in FIG., act on the load of direction of the angle of contact (representing with long and short dash line among Figure 10 and Figure 11) of rotor 50, born by the caulking part 37 of wheel hub wheel 30.Prevent small diameter cylinder section 32 and the interior distortion of taking turns 40 interior ring 21 of the inboard of the wheel hub wheel 30 that caused by this load, forming the with it guide part 38 of the gap turn narrow between the periphery of the 72b of bar section of the outside coupling member 72 of subtend of general near the interior week the caulking part 37 of wheel hub wheel 30.This guide part 38 is formed in the zone on the extended line of the angle of contact that comprises inboard rotor 50.
By forming guide part 38, the distortion to the internal side diameter of small diameter cylinder section 32 that the periphery restriction that utilizes the 72b of bar section is caused by the load of angle of contact direction.Therefore, by preventing from taking turns breaking of hub wheel 30, reduce wheel hub wheel 30 and take turns 40 friction with interior, and the distortion of the interior ring 21 of wheel 40 improves and rotates the life-span in suppressing, and suppresses temperature rising etc., the life-span that can improve bearing arrangement.For obtaining above-mentioned effect, represent enlargedly such as Fig. 1, preferably, with guide part 38 with it the guiding clearance a between the periphery of the outside coupling member 72 of subtend (72b of bar section) be set in below the 0.44mm.This guiding clearance a can be after the riveted joint of the end of wheel hub wheel 30 for example, and guide part 38 is carried out the turning second time, forms by revising size.
Such as enlargedly expression among Fig. 3, the end face in the inboard of caulking part 37 forms the tabular surface 38a with the direction of axis quadrature.In the prior art, when the shape of caulking part 3a riveted joint remains untouched placement, caulking part 3a contacts with the 7a1 of the shoulder section line of outside coupling member 7a, and effect has excessive surface pressure on both, might produce inordinate wear at caulking part 3a and the 7a1 of shoulder section.Relative therewith, if handle is made tabular surface 38a with the contact portion of the 72d of shoulder section of caulking part 37 as mentioned above, by caulking part 37 is contacted via tabular surface 38a with shoulder 72d, can reduce the pressure of contact surface, can suppress the inordinate wear of contact portion.
Tabular surface 38a for example also can be by forming caulking part pressurization, the flowing of the blank that in pressure process, causes by the pressure by pressurization, and the base end part of caulking part 37 stretches out to internal side diameter, might hinder the insertion operation of outside coupling member 72.Thereby preferably, tabular surface 38a carries out the processing (machine up) such as turning and grinding to form by the end face to caulking part 37.
Wherein, even as mentioned above, in the situation that caulking part 37 forms tabular surface 38a, when there is deviation in the position at the axial direction of tabular surface 38a, the relation that is in contact with one another for caulking part 37 and outside coupling member 72, constant-speed universal joint 70 can produce deviation with the to axial position of wheel hub wheel 30, is difficult to make the plunging joint center O consistent with the center of steering yoke bolt.Under the center and the inconsistent situation of plunging joint center O of steering yoke bolt, can damage the stability of Vehicle Driving Cycle.In addition, in the time can not guaranteeing the squareness of tabular surface 38a, can invade dust from the butted part of the end face of tabular surface 38a and the 72d of shoulder section, can get rusty in transmission of torque section, when maintenance, be difficult to coupling member 72 trailing wheel hub wheels 30 in the outside are unloaded.
For addressing this problem, in the present invention, tabular surface 38a position deviation in axial direction is limited in more than the standard value.Whereby, in the heart offset in plunging joint center O and the steering yoke bolt can be suppressed to bottom line, perhaps make both in full accord, so, when improving the stability of Vehicle Driving Cycle, can also avoid with the reduction of the contact portion leak tightness of tabular surface 38a.
Standard value is by the thickness L of caulking part shown in Figure 3 37 at axial direction
2, be that tabular surface 38a and interior dimensional discrepancy of taking turns the axial direction between 40 the inner side end 41 determine, in the present invention, its setting value is ± 0.2mm.Tabular surface 38a forms with the precision before the standard value by machine up, for example can be with the inner side end 12a of the outside end face 31a (flange surface) of wheel mounting flange 31 and vehicle body mounting flange 12 reference plane as described processing.Because the former forms in order to ensure the setting accuracy of brake disc, the latter forms in order to ensure the setting accuracy of steering swivel, so be suitable for as reference plane, if carry out machine up according to these reference planes, can obtain at an easy rate the thickness L within above-mentioned standard value
2
So-called squareness is in the time should making up with tabular surface 38a for the axle center at right angle, with one of them as benchmark, with respect to this datum line or reference plane, the geometric plane at another planar section or straight line portion and right angle or the size that departs from of straight line.In the present invention, the squareness in tabular surface 38a and axle center is set within the 0.15mm, whereby, can improves the leak tightness of caulking part 37 and the contact portion of the 72d of shoulder section.
In addition, also can indirectly carry out the control of the squareness between tabular surface 38a and the axle center by the outside end face 31a of control wheel mounting flange 31 and the parallelism of tabular surface 38a.
In addition, in the product of prior art shown in Figure 12, shown in shade line among Figure 18, on the periphery of outside coupling member 7, form and the protruding serration axial region 8b that consists of torque-transmitting mechanisms, the expression hardened layer S ' that withdrawing slot part 7a3 and the 7a1 of shoulder section are continuous.Wherein, in order to ensure and the intensity of wheel when carrying out transmission of torque between the hub wheel 3 serration axial region 8b is hardened.In addition, the 7a1 of shoulder section carries out the quench hardening processing with the surface of internal wheel 4 to be hardened explicitly.That is, carry out quench hardening when processing at internal wheel 4, if the 7a1 of shoulder section fails to quench, then in the difference of hardness of wheel 4 and the 7a1 of shoulder section strengthen, can cause skimming wear, sealing property is descended, for fear of this problem, the 7a1 of shoulder section is also hardened.
In contrast, in the present invention, because as described above, the caulking part 37 that contacts with 29 72d of shoulder section does not quench, so, if the same with prior art when the 72d of shoulder section forms cementation zone, both difference of hardness are strengthened, can cause unsuitable problem recited above.Thereby, in the present invention, as shown in Figure 4, the 72d of shoulder section is not carried out surface heat and process, this part is not quenched, have roughly the same hardness to guarantee it and caulking part 37.That is, as shown in Figure 4, the cementation zone S of outside plunging joint 72 is limited to the zone from serration axial region 82 to withdrawing slot part 72f, at least the end face of the 72d of shoulder section and the contact portion of caulking part 37 is not produced heat affecting, saves hardened layer S.The cementation zone S of this outside coupling member 72 is the same with the laser quenching hardened layer of wheel hub wheel 30, preferably carries out with electro-high-frequency hardening.
Like this, in the situation that the 72d of shoulder section and whole caulking part 37 are not quenched, can worry that caulking part 37 is not enough with the rigidity of the 72a of shoulder section, still, in the present invention, as mentioned above, owing to give prestrain by being riveted on bearing inside, so, compare with the product of prior art shown in Figure 12, the surface pressure that acts on these contact portions significantly reduces, thereby, there is not the problem of rigidity deficiency.
As has been described previously, when forming caulking part 37 in the end of riveted joint wheel hub wheel 30, be accompanied by Plastic Flow, near serration 81 situation that (medial end) is out of shape to internal side diameter caulking part 37 occurs sometimes.This distortion be a kind of to the side-prominent phenomenon of the serration axial region 82 of the object of serration 81 engagement, usually, in serration, undergauge by minor diameter 81a and the 81c of major diameter section or produce (in the present invention, this phenomenon being referred to as " undergauge phenomenon ") to the internal side diameter expansion of the side 81b (all with reference to Fig. 2) of tooth.
For corresponding with this phenomenon, in the present invention, as shown in Figure 2, will be formed at the profile of tooth (referring to the profile of the tooth section on the cross section of radial direction) of the serration 31 of wheel hub wheel on 30 interior weeks, be controlled at the governing criterion range L in the whole length of the axial direction of serration 81
1In.That is, in the prior art, no matter the degree of undergauge phenomenon how, is intactly shelved the shape of the serration 81 after the riveted joint, in contrast, in the present invention, make this profile of tooth on the whole length of its axial direction, all be in standard range L
1In, on one's own initiative it is processed, so that the not residual range L that is above standard
1The part that is projected into serration axial region 82 sides.Whereby, can suppress because the distortion to serrated shaft 82 sides (giving prominence to) that the undergauge phenomenon of serration 81 causes, so after riveted joint, when being pressed in the interior week of taking turns hub wheel 30, can prevent the generation of the excessive situation that maybe can not be pressed into of pressing-in force to outside coupling member 72.
Profile of tooth standard range L
1Determine according to the maximum pressing-in force that allows in the interior week that outside coupling member 72 is pressed into wheel hub wheel 30.That is, determine standard range L according to the maximum pressure value that allows at manufacturing line
1Width, the profile of tooth of serration 81 is in such governing criterion scope.For example, on manufacturing line, when the maximum pressing-in force that allows is larger, set the width of standard range wider, otherwise, set the width of standard range narrower.Consider that the maximum on the general manufacturing line allows pressing-in force, the standard range L of profile of tooth
1Preferably, on the whole length of the axial direction of serrated shaft 81 with its roller outside the dimension limit of bus diameter fix on 60 μ m.
Here, the outer bus diameter (O.P.D) of so-called roller refers to, as shown in Figure 5, between the roller 62 in the time of between respectively roller 62 (or steel ball) being clamped in respect to the 81c of two major diameter sections (teeth groove) of serration 81 apart from M.Use the above-mentioned dimension limit of defined as standard range L for this apart from M
1, be in this dimension limit in the whole length of its axial direction by the profile of tooth of controlling serration 81, can alleviate the pressing-in force of outside coupling member 72.
Can carry out with three kinds of modes shown in following particularly for the control of profile of tooth.
1. first example (with reference to Fig. 6)
At first, after a turning of the interior Zhou Jinhang that will take turns hub wheel 30, the medial end of riveted joint wheel hub wheel 30 forms caulking part 37.Then, to for the second time turning of interior Zhou Jinhang (finish turning) of wheel hub wheel 30 afterwards, to described second time of the turning surface processing of broaching, formation serration 81.In this case, the minor diameter 81a of serration 81 becomes the secondary turning face in the length of its whole axial direction.According to this step, even produce the undergauge phenomenon owing to being riveted on the medial end (regional X) of serration 81, because utilize secondary turning thereafter that protrusion is machined away, so, can be controlled at standard range to the profile of tooth of serration 81 in the whole length of axial direction.
2. second example (with reference to Fig. 7)
The same with first example, at first, after the turning of interior Zhou Jinhang to wheel hub wheel 30, the medial end of riveted joint wheel hub wheel 30 forms caulking part 37.Secondly, to the interior Zhou Jinhang secondary turning of wheel hub wheel 30, but this turning is only carried out in the regional X that the undergauge phenomenon occurs.Then, be processed to form serration 81 by broaching.Whereby, the excise protrusion that by undergauge phenomenon produced the same as first example alleviates pressing-in force, on the other hand, because the zone of secondary turning processing is less than first example, so can reduce cost than first example.In this case, in the minor diameter 81a of serration 81, only have medial end to become secondary turning face 84, the diameter of this part is larger than the diameter of other parts, and the amount that goes out greatly equals the turning amount of secondary turning.
3. the 3rd example (with reference to Fig. 8)
At first, after a turning of interior Zhou Jinhang of wheel hub wheel 30, be processed to form serration 81 by broaching.Secondly, after the medial end riveted joint of wheel hub wheel 30, only the generation area of the reducing diameter part that causes is thus carried out secondary turning its turning is fallen.In this case, in the minor diameter 81a of serration 81, only have medial end to become secondary turning face 84.In the drawings, this secondary turning and other position are formed roughly the same diameter, but also can form secondary turning face 84 larger than the diameter of other parts.
In above-mentioned the 3rd example, carry out near the secondary turning processing of caulking part 37 (the generation area X of reducing diameter part) in a turning of interior Zhou Jinhang of taking turns hub wheel 30 → each operation of broaching processing → riveted joint, but also can replace secondary turning to remove reducing diameter part by carrying out secondary broaching processing.At this moment, also can carry out two kinds of processing of secondary turning and secondary broaching processing.
In addition, in end when riveted joint of wheel hub wheel 30, at the inside diameter configuration mould of the medial end of serration 81, utilize this mould restriction to the distortion of the internal side diameter of serration 81, whereby, the same with first example～3rd example, can be controlled at the profile of tooth of serration 81 in the governing criterion scope.
Like this, according to the present invention, in caulking part 37, to make tabular surface 38a with the part that outside coupling member 72 contacts, the position deviation of the axial direction of this tabular surface 38a is limited in the standard value, thereby the offset between plunging joint center O and the steering yoke bolt center is compressed on minimum limit, perhaps can makes both in full accord.Thereby, in the stability that improves Vehicle Driving Cycle, can avoid being reduced in the leak tightness of above-mentioned contact portion.
In addition, end in the caulking part side that is formed at the transmission of torque usefulness tooth section on the interior week of the first inner member, because the transmission of torque that can suppress to cause because of the undergauge phenomenon overhang of tooth section, so, after riveted joint, in the time of in the interior week that outside coupling member is pressed into the first inner member, pressure can be not excessive, can carry out the smooth operation that is pressed into.And, without detriment to the effective length of transmission of torque with the axial direction of tooth section, can prevent owing to riveting the undergauge phenomenon of the wheel hub wheel that causes to the harmful effect of reduction cost.
Figure 10 represents the drive wheel that utilizes the trip ring 90 that is installed on the 72b of bar section to take turns the axial direction of hub wheel 30 and outside coupling member 72 example of wheel bearing arrangement.This trip ring 90 is installed on the circular groove 91 on the leading section that is formed at the 72b of bar section in advance, when the inner peripheral surface along wheel hub wheel 30 is embedded in the 72b of bar section, carry out undergauge, the caulking part 37 of wheel hub wheel 30 contacts with the 72d of shoulder section of outside coupling member 72, in the position elastic recovery of docking, cooperate with wheel hub wheel 30.By adopting from keeping mechanism, can utilize this trip ring 90 will take turns removably hub wheel 30 and fix with outside plunging joint 72, lightweight, the densification of wheel bearing arrangement are made contributions.
In the auxiliary section of wheel hub wheel 30 with outside plunging joint 72, can carry out antirust processing.Antirust processing is such as being undertaken by add antirust composition (lining cement and antirust composition) etc. on the surface of auxiliary section.Specifically, for example can be in advance on the periphery of the 72b of bar section of outside coupling member 72, the lining cement of coating take poly-urethane rubber as host after coating adhesive, is coupled to the bar section of outside coupling member 72 in the interior week of wheel hub wheel 30.Whereby, because the surface of serration 81 and serration axial region 82 is protected by adhesive film at least, thereby can prevent from reliably getting rusty in this section.Because with the gap of remaining lining cement part with cooperation, for example bury in the gap between serration 81 and the serration axial region 82, and then, when remainder is many, near the gap 92 usefulness lining cements in the 30 interior weeks of wheel hub wheel the axle head of the annular gap (guide part 38 described in Fig. 1) between the periphery of week and the 72b of bar section in the minor diameter end difference 17 (comprising caulking part 37) and the 72b of bar section are buried, invade with the interface of outside coupling member 72 or the peristome (outside) of wheel hub wheel 30 so can suppress the caulking part 37 of the trailing wheel hub wheels 30 such as dust and rainwater, can prevent from getting rusty in the auxiliary section.In this case, because the gap-fill in the auxiliary section has sufficient lining cement, the obstruction that can become flexible can improve bearing rigidity.
Like this, in the present invention, by using antirust composition to prevent that INT COMP 20 and the auxiliary section of outside coupling member 72 from getting rusty, so, there is no need as JP 2000-14200 number described structure, between the 72d of shoulder section of caulking part 37 and outside coupling member 72, containment member to be installed, can make these docking and be adjacent to each other.Thereby, reduce cost by reducing part count.Can by interface each other be adjacent to the raising rigidity.
As antirust composition, except lining cement, also can use with the foaming agent of the neoprene such as poly-urethane rubber as host.Because foaming agent can expand tens times with respect to its volume of solvent, so improve the filling rate in gap, can further improve rust-proof effect.
In addition, these antirust compositions also can be applied to the interior week of wheel hub wheel 30 or be applied to simultaneously the periphery of the 72b of bar section and the interior week of wheel hub wheel 30 except the periphery that is coated on the 72b of bar section.And then, also can under the mated condition of wheel hub wheel 30 and outside coupling member 72, by utilizing suitable method antirust composition be injected between the gap 38,92, fill gap 38,92 with antirust composition.
In the bearing arrangement of this form of implementation, will be installed to the compressing lid 93 of steel plate on the peristome of wheel hub wheel 30, utilize this lid 93 to prevent that dust and rainwater etc. are attached directly on the antirust composition.Central part at this lid 93 forms aperture 93a.In the time of on the interior week that outside coupling member 72 is coupled to wheel hub wheel 30, can remaining antirust composition be discharged via this aperture 93a, perhaps inject antirust composition via this aperture 93a from the outside.
Figure 11 is the longitudinal diagram of another form of implementation of expression, be the air extractor vent 93b that is made of rubber etc. to be installed being formed at the aperture 93a that covers on 93 with the described form of implementation difference of Figure 10, and trip ring be coupled on the end face of wheel hub wheel 30.Because other structure is identical with form of implementation shown in Figure 10, so identical label is given at same parts and same position, description is omitted.By additional this air extractor vent 93b, improve the sealing property of auxiliary section, combine with the effect of antirust composition, further improve rustless property.
As aforementioned lining cement and foaming agent, can list with material described below as host.
1. natural rubber, starch, gelatin, casein, shellac, the natural materials such as pitch.The isoprene neoprene, butaprene, styrene butadiene rubbers, acrylonitrile-butadiene rubber, the rare rubber of ethene-third, ethene-third is rare-dience rubber, buttress rubber, poly-chloroprene rubber, thiokol, viton, acrylic rubber, poly-urethane rubber, chlorosulphonated polyethylene, epichlorohydrin rubber, ethylene-acrylic rubber, the ethene-vinyl acetate elastic body, the neoprene such as surperficial phaseolin rubber.
2. dially phthalate resin, epoxy resin, melamine resin, melamine-phenol resin, phenol resin, polyimide resin, poly-the third vinylpyridine, urea formaldehyde resin, unsaturated polyester resin, organic siliconresin, the hard thermosetting resin such as polyurethane resin.
3. isoallyl-acrylonitrile-styrene resin copolymer resin, the acrylonitrile-butadiene-styrene copolymer resin, modified acrylonitrile-butadiene-styrene copolymer, the acrylonitrile-chlorianted polyethylene-styrene terpolymer resin, acrylonitrile-ethylene propylene rubber-styrol copolymer, acrylonitrile resin, the acrylonitritrile-styrene resin resin, haloflex, poly-chlorine trifluoride ethene, the ethylene-ethyl acrylate copolymer resin, the ethylene-methacrylic acid copolymer resin, tetrafluoroethylene-ethylene copolymer resin, ethylene-vinyl acetate copolymer resin, ethene-vinyl acetate-vinyl chloride copolymer resin, the ethylene-vinyl acid copolymer resin, tetrafluoroethylene-hexafluoro propylene copolymer resins, ionic cross-linked polymer resin, liquid crystal polymer (golden aromatic polyether), maleimide-styrene copolymer resin, methyl acrylic acid-styrene copolymer resin, polyamide, polyamide 11, polyamide 12, polyamide 46, polyamide 6, polyamide 6 .66, polyamide 610, polyamide 66, modified polyamide 66, polyamide aromatic, polyene acetone ether, polyamide-Ya amide resin, poly-fragrant fat, polypropylene-base sulfone, polybutyleneterephthalate, polybutene, polycarbonate, modified polycarbonate, polybutene, high density polyethylene (HDPE), medium density polyethylene, Low Density Polyethylene, straight chain formula Low Density Polyethylene, ultra high molecular polyethylene, polyether etherketone, polyetherimide, poly ether-ketone (PEK), polyethers is sucked sulfone, polyethylene terephthalate, tetrafluoroethylene-perfluoroalkyl ethylene oxy copolymer, methacrylic resin, the methacrylic resin of anti-the high impact-resistant, the modified methacrylic acid resin, polymethylpentene, polyacetal, polypropylene, polyphenylene ether, the modification polyphenylene ether, modification is poly-to benzene oxygen, poly-to benzene sulphur, polystyrene, high impact polystyrene rigidity, middle impact polystyrene, polysulfones, the modification polysulfones, poly thioether sulfone, polytetrafluoro ethene, polyvinylchloride, gather and fluoridize inferior ethene, ethene-cis-1 copolymer resins, high impact-resistant ethene-cis-1 copolymer resins, the polystyrene based elastomers, polystyrene-butadiene-based elastic body, vinyl chloride elastic body, alkene based elastomers, the polyurethane series elastic body, the polyethers based elastomers, polyamide-based elastic body, nitrile based elastomers, Fuoroelastomer, the thermoplastic base resins such as ammonia vinyl chloride elastic body.
These materials can use separately, also can use with two or more mixing.
Describe in detail as top, according to driving bearing apparatus for wheel of the present invention, certainly keeping in the mechanism, when inhibition dust and rainwater etc. are invaded the auxiliary section of INT COMP and outside coupling member, for example, even when they are invaded, owing to being embedded to fully in the gap of auxiliary section with antirust composition, thereby can suppress to get rusty, when dismounting, can greatly improve workability.
Fig. 9 represents to drive the other form of implementation of bearing apparatus for wheel.This bearing arrangement as taking turns in two of the second inner member on 42,43 peripheries that are fixed to as the wheel hub wheel 30 of the first inner member, is taken turns to form respectively on 42,43 the periphery in two and is encircled 21,22 in the multiple row.42,43 states in docking of taking turns in two are pushed down on the periphery of the small diameter cylinder section 32 on the periphery that is formed on wheel hub wheel 30, and wherein, inboard interior wheel 43 contacts with the circular bead surface 39 of wheel mounting flange 31.Medial end by making wheel hub wheel 30 forms caulking part to outside diameter plastic deformation, makes whereby interiorly to take turns 42,43 with to take turns hub wheel 30 integrated and carry out prestrain.Outside coupling member 72 is coupled to interior all sides of wheel hub wheel 30 from state shown in Figure 9, pass through clamp nut, perhaps by fixing with stationary member 90, finish the assembling that drives bearing apparatus for wheel (with Fig. 1, Figure 10, and the identical part of apparatus function, effect shown in Figure 11 give identical reference number, omit its repeat specification).
For this bearing arrangement, by adopting the structure of the present invention according to Fig. 1～Fig. 8, Figure 10 and Figure 11 explanation, obtain same result recited above.
The above is illustrated form of implementation of the present invention, but the present invention is not limited to this form of implementation, it only for example, in being no more than the scope of purport of the present invention, can further be implemented with various forms, scope of the present invention is as described in the scope of claims, and comprises with the described equivalent of the scope of claims and the institute in this scope and changing.
Claims (7)
1. one kind drives bearing apparatus for wheel, and it is made of following part;
Form the external member of multiple row outer shroud in interior week; By the wheel hub wheel with interior take turns consist of, on periphery, form respectively and the multiple row of the outer shroud subtend of said external member in encircle and the wheel mounting flange and be provided with aforementioned interior take turns to be bonded to aforementionedly take turns the minor diameter end difference on the hub wheel and make the end of aforementioned minor diameter end difference to the INT COMP of the caulking part of outside diameter plastic deformation; Be installed at said external member and INT COMP each the ring between the multiple row rotor; Have via serration to bar section transmitting torque, be embedded into the constant-speed universal joint of the outside coupling member of aforementioned INT COMP; Wherein, with being bearing on the vehicle body that wheel can rotate freely, in described driving bearing apparatus for wheel, it is characterized by, with state that the caulking part of aforementioned INT COMP docks under dock, outer peripheral face coating antirust composition in the bar section of aforementioned inner peripheral surface of taking turns hub wheel and aforementioned outside coupling member, in the auxiliary section of the serration axial region of aforementioned serration of taking turns hub wheel and aforementioned outside coupling member and contain that the annular gap between week and bar section periphery installs antirust composition additional in the aforementioned minor diameter end difference of caulking part, and aforementioned INT COMP and aforementioned outside coupling member can be dismantled.
2. driving bearing apparatus for wheel as claimed in claim 1 is characterized in that, as aforementioned antirust composition, uses the lining cement of elastic system.
3. driving bearing apparatus for wheel as claimed in claim 1 is characterized in that, as aforementioned antirust composition, uses the foaming agent of elastic system.
4. driving bearing apparatus for wheel as claimed in claim 1 is characterized in that, is integrally formed the multiple row outer shroud interior week, formation vehicle body mounting flange in aggregates on periphery at the said external member respectively.
5. driving bearing apparatus for wheel as claimed in claim 1, it is characterized in that, aforementioned INT COMP is by the interior ring that has respectively wheel mounting flange on periphery, the outside, and the wheel hub wheel of minor diameter end difference, and periphery have inboard in the interior wheel formation of ring, the end that makes aforementioned minor diameter end difference to outside diameter plastic deformation, will take turns hub wheel and interiorly take turns combination.
6. driving bearing apparatus for wheel as claimed in claim 1 is characterized in that, in axial direction removably the bar section of aforementioned INT COMP and outside coupling member is fixed by stationary member.
7. driving bearing apparatus for wheel as claimed in claim 6 is characterized in that, when aforementioned INT COMP is installed the lid of its open-ended section of sealing, covers at this aperture is set.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200196027 | 2001-03-29 | ||
| JP2001096027A JP2002283806A (en) | 2001-03-29 | 2001-03-29 | Bearing device for drive axle |
| JP2001096036A JP3902415B2 (en) | 2001-03-29 | 2001-03-29 | Drive wheel bearing device |
| JP2001-96027 | 2001-03-29 | ||
| JP200196036 | 2001-03-29 | ||
| JP2001-96036 | 2001-03-29 | ||
| JP2001-138861 | 2001-05-09 | ||
| JP2001138861 | 2001-05-09 | ||
| JP2001138861A JP4149139B2 (en) | 2001-05-09 | 2001-05-09 | Drive wheel bearing device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028008863A Division CN1309582C (en) | 2001-03-29 | 2002-03-25 | Bearing device for drive wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101402302A CN101402302A (en) | 2009-04-08 |
| CN101402302B true CN101402302B (en) | 2013-01-09 |
Family
ID=18950000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810169576 Expired - Lifetime CN101402302B (en) | 2001-03-29 | 2002-03-25 | Bearing device for drive wheel |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2002283806A (en) |
| CN (1) | CN101402302B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005221003A (en) * | 2004-02-05 | 2005-08-18 | Nsk Ltd | Bearing device for supporting wheel |
| JP2006188187A (en) * | 2005-01-07 | 2006-07-20 | Ntn Corp | Bearing device for wheel |
| JP4606883B2 (en) * | 2005-01-07 | 2011-01-05 | Ｎｔｎ株式会社 | Wheel bearing device |
| JP5116131B2 (en) * | 2005-09-14 | 2013-01-09 | Ｎｔｎ株式会社 | Drive wheel bearing device |
| JP5077909B2 (en) * | 2006-02-21 | 2012-11-21 | Ｎｔｎ株式会社 | Wheel bearing device |
| JP5315624B2 (en) * | 2007-03-29 | 2013-10-16 | 株式会社ジェイテクト | Wheel support device |
| JP4959514B2 (en) * | 2007-11-09 | 2012-06-27 | Ｎｔｎ株式会社 | Wheel bearing device |
| JP5297643B2 (en) * | 2007-12-07 | 2013-09-25 | Ｎｔｎ株式会社 | Wheel bearing device |
| IT1397113B1 (en) * | 2009-11-21 | 2012-12-28 | Skf Ab | FLANGED INTERNAL RING FOR A WHEEL HUB |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4172620A (en) * | 1978-07-24 | 1979-10-30 | Marti Milford F | Axle-hub assembly |
| US5603554A (en) * | 1996-02-21 | 1997-02-18 | Chrysler Corporation | Rear axle assembly |
| US6135571A (en) * | 1998-02-16 | 2000-10-24 | Nsk, Ltd. | Axle unit for driving a vehicle wheel |
| CN1281405A (en) * | 1997-12-06 | 2001-01-24 | 伊普奥泰科机械及不锈钢产品有限公司 | Wheel suspension assembly |
-
2001
- 2001-03-29 JP JP2001096027A patent/JP2002283806A/en active Pending
-
2002
- 2002-03-25 CN CN 200810169576 patent/CN101402302B/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4172620A (en) * | 1978-07-24 | 1979-10-30 | Marti Milford F | Axle-hub assembly |
| US5603554A (en) * | 1996-02-21 | 1997-02-18 | Chrysler Corporation | Rear axle assembly |
| CN1281405A (en) * | 1997-12-06 | 2001-01-24 | 伊普奥泰科机械及不锈钢产品有限公司 | Wheel suspension assembly |
| US6135571A (en) * | 1998-02-16 | 2000-10-24 | Nsk, Ltd. | Axle unit for driving a vehicle wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101402302A (en) | 2009-04-08 |
| JP2002283806A (en) | 2002-10-03 |
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Granted publication date: 20130109 |