JP4798051B2 - Assembly method of rolling bearing device for wheel - Google Patents

Assembly method of rolling bearing device for wheel Download PDF

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JP4798051B2
JP4798051B2 JP2007099574A JP2007099574A JP4798051B2 JP 4798051 B2 JP4798051 B2 JP 4798051B2 JP 2007099574 A JP2007099574 A JP 2007099574A JP 2007099574 A JP2007099574 A JP 2007099574A JP 4798051 B2 JP4798051 B2 JP 4798051B2
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jig
outer ring
hub shaft
ring member
axial direction
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JP2008256113A (en
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勝之 原田
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JTEKT Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Description

本発明は、車体に設けられた車輪懸架装置であるナックルに車輪用転がり軸受装置を組み付ける車輪用転がり軸受装置の組み付け方法に関する。   The present invention relates to a method of assembling a wheel rolling bearing device in which a wheel rolling bearing device is assembled to a knuckle that is a wheel suspension device provided on a vehicle body.

従来、この種の車輪用転がり軸受装置としては、例えば特許文献１に記載の装置がある。この特許文献１に記載の装置も含め、こうした車輪用転がり軸受装置は通常、車体側に支持されて車輪の懸架装置であるナックルに固定される外輪部材と、この外輪部材の径方向内方に転動体を介して配置されて車輪に連結される内輪部材（ハブ軸）とを基本的に備える構成となっている。そして、このような車輪用転がり軸受装置にあって、ナックルに対する上記外輪部材の装着、固定はこれまで、上記特許文献１に記載の装置にも見られるように、同外輪部材の外周部にナックルとの締結用のフランジ及びボルト孔を設けておき、該ボルト孔を通じたボルトの締結によってナックルへの固定を図る方法が採用されることが多かった。このため、外輪部材には上述したフランジやボルト孔の配設が必要となるばかりか、上記ナックルについても、こうした締結のためのボルト孔もしくは上記ボルトが螺入されるねじを設けておく必要があるなど、それら各部の製造コストはもとより、当該車輪用転がり軸受装置の組み付けにかかる煩雑さ等が無視できないものとなっている。   Conventionally, as this type of wheel rolling bearing device, for example, there is a device described in Patent Document 1. Such a wheel rolling bearing device including the device described in Patent Document 1 is usually supported on the vehicle body side and fixed to a knuckle which is a suspension device for the wheel, and radially inward of the outer ring member. The structure basically includes an inner ring member (hub shaft) that is arranged via a rolling element and connected to a wheel. In such a wheel rolling bearing device, the outer ring member is attached and fixed to the knuckle so that the knuckle is attached to the outer peripheral portion of the outer ring member as seen in the device described in Patent Document 1 so far. In many cases, a method is used in which a flange and a bolt hole for fastening are provided and the bolt is fastened to the knuckle by fastening the bolt through the bolt hole. For this reason, not only the above-described flange and bolt hole are required to be provided on the outer ring member, but also the knuckle needs to be provided with a bolt hole for such fastening or a screw into which the bolt is screwed. For example, the complexity of the assembly of the rolling bearing device for a wheel cannot be ignored as well as the manufacturing cost of each part.

そこで近年は、外輪部材外周部への上記フランジやボルト孔の配設、並びにナックルへの上記ボルト孔もしくはボルトが螺入されるねじ穴等の配設を省略し、ナックルに設けられた嵌入用の穴に上記外輪部材の外周面を直接嵌合して当該車輪用転がり軸受装置を組み付ける方法なども提案されている。このように、ナックルに設けられた嵌入用の穴に上記外輪部材の外周面を直接嵌合して同車輪用転がり軸受装置をナックルに組み付けるようにすることで、それら外輪部材やナックル等の製造コストも自ずと削減されるようになる。
特開２００２−２０６５３８号公報 Therefore, in recent years, the arrangement of the flange and bolt hole on the outer peripheral portion of the outer ring member and the arrangement of the bolt hole or screw hole into which the bolt is screwed into the knuckle are omitted, and the fitting provided in the knuckle is omitted. A method of assembling the wheel rolling bearing device by directly fitting the outer peripheral surface of the outer ring member into the hole is proposed. In this way, by manufacturing the outer ring member, the knuckle, etc. by directly fitting the outer peripheral surface of the outer ring member into the fitting hole provided in the knuckle and assembling the rolling bearing device for the wheel to the knuckle. Costs will naturally be reduced.
JP 2002-206538 A

ところで、上述のようにナックルに設けられた嵌入用の穴に上記外輪部材の外周面を直接嵌合して車輪用転がり軸受装置をナックルに組み付ける場合、その嵌合に際しては、車輪用転がり軸受装置をその軸方向からナックルに設けられた嵌入用の穴に圧入する必要がある。そしてこの圧入時、車輪に連結される上記ハブ軸から荷重を加えて圧入すると、上記ベアリングを構成する球状転動体（ボール）を介して軌道面に圧痕が生じるため、上記外輪部材に荷重を加えて圧入しなければならない。すなわち、この外輪部材とハブ軸との間、正確には外輪部材とハブ軸に設けられた車輪連結用のフランジとの間にその隙間を塞ぐ適宜の治具を挿入した状態で、ハブ軸から荷重を加えて車輪用転がり軸受装置をナックルに圧入することとなる。しかしこの際、上記外輪部材とハブ軸に設けられた車輪連結用のフランジとの間に十分なスペースが存在しない場合（例えば１０ｍｍ以下の場合）には、上記治具としても自ずと厚さの薄い治具を使用せざるを得なくなり、圧入に必要とされる十分な強度を確保することができなくなるおそれがある。   When the wheel rolling bearing device is assembled to the knuckle by directly fitting the outer peripheral surface of the outer ring member into the fitting hole provided in the knuckle as described above, the wheel rolling bearing device is used for the fitting. Needs to be press-fitted into the fitting hole provided in the knuckle from the axial direction. At the time of this press-fitting, if a load is applied from the hub shaft connected to the wheel and a press-fitting is performed, an indentation is generated on the raceway surface via the spherical rolling elements (balls) constituting the bearing, so that a load is applied to the outer ring member. Must be press-fitted. That is, in the state where an appropriate jig for closing the gap is inserted between the outer ring member and the hub shaft, more precisely between the outer ring member and the wheel coupling flange provided on the hub shaft, A load is applied and the wheel rolling bearing device is press-fitted into the knuckle. However, in this case, when there is not enough space between the outer ring member and the wheel coupling flange provided on the hub shaft (for example, 10 mm or less), the jig is naturally thin. There is no choice but to use a jig, and there is a possibility that sufficient strength required for press-fitting cannot be secured.

本発明は、こうした実情に鑑みてなされたものであり、その目的は、外輪部材とハブ軸に設けられた車輪連結用のフランジとの間に十分なスペースが存在しない場合であれ、圧入に必要とされる十分な強度を確保しつつ、車輪用転がり軸受装置をナックルに組み付けることのできる車輪用転がり軸受装置の組み付け方法を提供することにある。   The present invention has been made in view of such circumstances, and its purpose is necessary for press-fitting even when there is not enough space between the outer ring member and the wheel coupling flange provided on the hub axle. Another object of the present invention is to provide a method for assembling a wheel rolling bearing device capable of assembling the wheel rolling bearing device to a knuckle while ensuring sufficient strength.

こうした課題を解決すべく、本発明にかかる車輪用転がり軸受装置の組み付け方法は、車輪に連結されるフランジ部を有するハブ軸が複列からなる複数の転動体を介して径方向外方に設けられた外輪部材によって軸支される車輪用転がり軸受装置の前記外輪部材を車輪の懸架装置であるナックルの嵌入用穴に圧入固定する車輪用転がり軸受装置の組み付け方法であって、前記外輪部材と前記ハブ軸に設けられたフランジ部との間に外輪部材の端面と対向する面が該外輪部材の端面に被る角度の斜面となるくさび形の治具を前記ハブ軸の軸方向と直交する方向から挿入し、該挿入した治具により前記ハブ軸の軸方向と直交する方向から軸心方向に印加する圧力荷重と前記ハブ軸のフランジ部側から同ハブ軸の軸方向に印加する圧力荷重との協働によって前記外輪部材を前記ナックルの嵌入用穴に圧入固定することを要旨とする。   In order to solve such a problem, a method of assembling a rolling bearing device for a wheel according to the present invention includes a hub shaft having a flange portion connected to a wheel provided radially outward via a plurality of rolling elements. A method of assembling a wheel rolling bearing device for press-fitting the outer ring member of a wheel rolling bearing device pivotally supported by a formed outer ring member into a fitting hole of a knuckle as a wheel suspension device, the outer ring member and A wedge-shaped jig in which a surface facing the end surface of the outer ring member is an inclined surface covering the end surface of the outer ring member between the flange portion provided on the hub shaft and a direction orthogonal to the axial direction of the hub shaft A pressure load applied in the axial direction from a direction orthogonal to the axial direction of the hub shaft by the inserted jig, and a pressure load applied in the axial direction of the hub shaft from the flange portion side of the hub shaft, Collaboration Thus the subject matter to be press-fitted to the outer ring member into the fitting hole of the knuckle.

このような組み付け方法によれば、たとえ外輪部材とハブ軸に設けられたフランジ部との間に十分なスペースが存在しなくとも、上記くさび形の治具の挿入を通じてこれら外輪部材の端面とフランジ部との間の隙間を高い汎用性をもって塞ぐことが可能となる。しかもこの治具は、その挿入部がくさび形を有していることで、治具自体の厚さについてもこれを圧入に必要とされる十分な強度を確保し得る厚さに設定することができ、上記外輪部材の端面に対する圧力荷重の印加態様についてもその自由度が自ずと高められるようになる。すなわち、この場合には上述のように、挿入した治具によりハブ軸の軸方向と直交する方向から軸心方向に印加する圧力荷重とハブ軸のフランジ部側から同ハブ軸の軸方向に印加する圧力荷重との協働によって上記外輪部材をナックルの嵌入用穴に圧入することが可能となり、ひいては軌道面に圧痕等が生じることのない高い信頼性のもとに、しかも着実に、上記ナックルに対して車輪用転がり軸受装置を組み付けることができるようになる。   According to such an assembling method, even if there is no sufficient space between the outer ring member and the flange portion provided on the hub shaft, the end surfaces of the outer ring member and the flange are inserted through the insertion of the wedge-shaped jig. It is possible to close the gap between the parts with high versatility. Moreover, this jig has a wedge shape in its insertion part, so that the thickness of the jig itself can be set to a thickness that can ensure sufficient strength required for press-fitting. In addition, the degree of freedom of the application mode of the pressure load to the end face of the outer ring member is naturally increased. That is, in this case, as described above, the pressure load applied from the direction orthogonal to the axial direction of the hub shaft to the axial direction by the inserted jig and the axial direction of the hub shaft from the flange portion side of the hub shaft are applied. The outer ring member can be press-fitted into the knuckle insertion hole by cooperating with the pressure load to be applied, and as a result, the knuckle can be steadily and highly reliable with no indentation on the raceway surface. On the other hand, the wheel rolling bearing device can be assembled.

また本発明は、上記車輪用転がり軸受装置の組み付け方法において、前記治具は、前記くさび形からなる斜面が前記外輪部材の円形からなる端面に対応した逆テーパ状に形成されてその正面形状がそれぞれ扇形の内側の円弧をなす複数の弧状分割板として形成されてなり、前記挿入した治具による前記ハブ軸の軸方向と直交する方向から軸心方向への圧力荷重の付与が、それら弧状分割板の円弧の中心に向けた絞り駆動に基づいて行われることを要旨とする。   Further, the present invention is the above-described method of assembling the rolling bearing device for a wheel, wherein the jig is formed such that the wedge-shaped inclined surface is formed in a reverse taper shape corresponding to the circular end surface of the outer ring member, and the front shape thereof is It is formed as a plurality of arc-shaped dividing plates each forming a circular arc inside the sector, and the application of pressure load from the direction perpendicular to the axial direction of the hub shaft to the axial direction by the inserted jig is divided into these arc-shaped divisions. The gist of the invention is that it is performed based on aperture driving toward the center of the arc of the plate.

同組み付け方法によれば、上記くさび形からなる斜面を有する治具として、工作機械に用いられるチャックのように、上記扇形の複数の（例えば３枚の）弧状分割板が径方向に同時に移動可能な構造を有するとともに、その内方の先端面、すなわち扇形の内側の円弧部分に逆テーパ状からなる上記くさび形の斜面が形成された治具が用いられることで、上記挿入した治具による特にハブ軸の軸方向と直交する方向から軸心方向への圧力荷重の付与等も円滑に実現されるようになる。   According to the assembling method, a plurality of (for example, three) arc-shaped divided plates can be moved simultaneously in the radial direction as a chuck used in a machine tool as a jig having a wedge-shaped inclined surface. In particular, the jig having the wedge-shaped inclined surface formed with the reverse tapered shape on the inner end surface thereof, i.e., the arcuate portion inside the sector, is used. Application of a pressure load in a direction from the direction perpendicular to the axial direction of the hub shaft to the axial direction is smoothly realized.

また本発明は、上記車輪用転がり軸受装置の組み付け方法において、前記外輪部材の円形からなる端面の形状を、前記治具の斜面角度に対応したテーパ形状としておくことを要旨とする。   Further, the gist of the present invention is that the shape of the end face made of a circle of the outer ring member is a tapered shape corresponding to the slope angle of the jig in the method of assembling the rolling bearing device for a wheel.

同組み付け方法によれば、上記治具を介した圧力荷重の印加に際して、これに当接される外輪部材の端面に対する十分な接触面積を確保することができるようになり、ひいては上記ナックルの嵌入用穴に対する外輪部材のより円滑な圧入が可能となる。   According to the assembling method, when a pressure load is applied through the jig, a sufficient contact area with respect to the end surface of the outer ring member to be abutted with the jig can be secured. The outer ring member can be more smoothly press-fitted into the hole.

一方、本発明は、上記車輪用転がり軸受装置の組み付け方法において、前記治具の挿入に先立って前記外輪部材の円形からなる端面に前記治具の斜面角度に対応したテーパ形状を有する複数のリング分割体からなる補助治具を装着し、前記治具を挿入した状態での前記各圧力荷重の付与をこの装着した補助治具を介して行うことを要旨とする。   On the other hand, the present invention provides a method for assembling the rolling bearing device for a wheel described above, wherein a plurality of rings having a tapered shape corresponding to a slope angle of the jig on the circular end surface of the outer ring member prior to insertion of the jig. The gist is that an auxiliary jig made of a divided body is attached, and each pressure load is applied through the attached auxiliary jig in a state where the jig is inserted.

同組み付け方法によっても、上記治具を介した圧力荷重の印加に際し、上記補助治具を介して当接される外輪部材の端面に対する十分な接触面積を確保することができるようになり、ひいては上記ナックルの嵌入用穴に対する外輪部材のより円滑な圧入が可能となる。ちなみにこの方法は、上記外輪部材の端面がテーパ等を有しない通常の円筒端面形状である場合に有効である。   Even in the assembly method, when a pressure load is applied through the jig, a sufficient contact area with respect to the end surface of the outer ring member that is brought into contact with the auxiliary jig can be secured. The outer ring member can be more smoothly press-fitted into the knuckle insertion hole. Incidentally, this method is effective when the end face of the outer ring member has a normal cylindrical end face shape having no taper or the like.

また本発明は、上記車輪用転がり軸受装置の組み付け方法において、前記挿入した治具により前記ハブ軸の軸方向と直交する方向から軸心方向に印加する圧力荷重と前記ハブ軸のフランジ部側から同ハブ軸の軸方向に印加する圧力荷重との協働による前記外輪部材の前記ナックルの嵌入用穴への圧入固定が、
ａ．前記外輪部材と前記ハブ軸に設けられたフランジ部との間に前記治具のくさび形先端を挿入、当接させた状態での前記ハブ軸のフランジ部側から同ハブ軸の軸方向への圧力荷重の印加に基づく仮圧入工程、及び
ｂ．前記ハブ軸のフランジ部側から同ハブ軸の軸方向への圧力荷重を保持した状態での前記ハブ軸の軸方向と直交する方向から軸心方向への圧力荷重の印加に基づく本圧入工程、
の２段階の工程を経て行われることを要旨とする。 Further, according to the present invention, in the method for assembling the rolling bearing device for a wheel described above, the pressure load applied in the axial direction from the direction orthogonal to the axial direction of the hub shaft by the inserted jig and the flange portion side of the hub shaft. Press-fitting and fixing the outer ring member into the insertion hole of the knuckle by cooperating with a pressure load applied in the axial direction of the hub shaft,
a. The wedge-shaped tip end of the jig is inserted between the outer ring member and the flange portion provided on the hub shaft, and the hub shaft extends from the flange portion side in the axial direction of the hub shaft. A temporary press-fitting step based on application of a pressure load; and b. A main press-fitting step based on the application of the pressure load in the axial direction from the direction orthogonal to the axial direction of the hub shaft in a state in which the pressure load in the axial direction of the hub shaft is held from the flange portion side of the hub shaft;
The gist is that it is performed through the two-stage process.

上記各圧力荷重についてはこれらを同時に印加するようにしても勿論よいが、同組み付け方法によるように、上記仮圧入工程と上記本圧入工程とで、それら各圧力荷重の特性に基づいた印加態様の調整を図るようにすれば、上述したナックルの嵌入用穴に対する外輪部材の圧入固定をより安定かつ円滑に実現することができるようになる。ちなみに、仮圧入工程において印加される上記ハブ軸のフランジ部側から同ハブ軸の軸方向への圧力荷重とは、上記ナックルの嵌入用穴に対する外輪部材の位置決め、並びに圧入初期時に有効な荷重であり、他方の本圧入工程において印加される上記ハブ軸の軸方向と直交する方向から軸心方向への圧力荷重とは、上記治具のくさび形状に基づく強い圧力での最終的な嵌合固定に有効な荷重である。   Of course, these pressure loads may be applied at the same time, but as in the assembly method, in the temporary press-in process and the main press-in process, the application mode based on the characteristics of the respective pressure loads is used. If the adjustment is made, the above-described press-fitting and fixing of the outer ring member to the knuckle insertion hole can be realized more stably and smoothly. Incidentally, the pressure load applied from the flange side of the hub shaft to the axial direction of the hub shaft applied in the temporary press-fitting process is a load effective at the time of positioning the outer ring member with respect to the fitting hole of the knuckle and at the initial press-fitting. Yes, the pressure load from the direction orthogonal to the axial direction of the hub shaft applied in the other main press-fitting step to the axial direction is the final fitting and fixing with a strong pressure based on the wedge shape of the jig This is an effective load.

本発明によれば、たとえ外輪部材とハブ軸に設けられたフランジ部との間に十分なスペースが存在しなくとも、上記くさび形の治具の挿入を通じてこれら外輪部材の端面とフランジ部との間の隙間を高い汎用性をもって塞ぐことが可能となる。しかもこの治具は、その挿入部がくさび形を有していることで、治具自体の厚さについてもこれを圧入に必要とされる十分な強度を確保し得る厚さに設定することができ、上記外輪部材の端面に対する圧力荷重の印加態様についてもその自由度が自ずと高められるようになる。すなわちこの場合には、挿入した治具によりハブ軸の軸方向と直交する方向から軸心方向に印加する圧力荷重とハブ軸のフランジ部側から同ハブ軸の軸方向に印加する圧力荷重との協働によって上記外輪部材をナックルの嵌入用穴に圧入することが可能となり、ひいては軌道面に圧痕等が生じることのない高い信頼性のもとに、しかも着実に、上記ナックルに対して車輪用転がり軸受装置を組み付けることができるようになる。   According to the present invention, even if there is not enough space between the outer ring member and the flange portion provided on the hub shaft, the end surface of the outer ring member and the flange portion are inserted through the insertion of the wedge-shaped jig. It becomes possible to close the gap between them with high versatility. Moreover, this jig has a wedge shape in its insertion part, so that the thickness of the jig itself can be set to a thickness that can ensure sufficient strength required for press-fitting. In addition, the degree of freedom of the application mode of the pressure load to the end face of the outer ring member is naturally increased. That is, in this case, the pressure load applied in the axial direction from the direction orthogonal to the axial direction of the hub shaft by the inserted jig and the pressure load applied in the axial direction of the hub shaft from the flange portion side of the hub shaft. By cooperation, it becomes possible to press-fit the outer ring member into the knuckle insertion hole, and as a result, with high reliability without any indentation or the like on the raceway surface, and steadily for the wheel on the knuckle. The rolling bearing device can be assembled.

（第１の実施の形態）
図１〜図３に、本発明にかかる車輪用転がり軸受装置の組み付け方法についてその第１の実施の形態を示す。なお、図１は、本実施の形態にかかる車輪用転がり軸受装置の組み付け方法の概念をここで用いる治具と共に部分断面図として示したものであり、また図２は、同組み付け方法において用いられる治具についてその正面構造を模式的に示したものである。ちなみに図１は、この図２のＢ−Ｂ線に沿った方向での車輪用転がり軸受装置及び同治具の断面図に相当する。そして図３は、同組み付け方法にかかる組み付け手順について、図１の破線で囲んだ領域Ａに対応する図としてこれを拡大して示している。 (First embodiment)
1 to 3 show a first embodiment of a method for assembling a wheel rolling bearing device according to the present invention. FIG. 1 shows the concept of the method of assembling the wheel rolling bearing device according to this embodiment as a partial sectional view together with the jig used here, and FIG. 2 is used in the method of assembling. The front structure of the jig is schematically shown. Incidentally, FIG. 1 corresponds to a cross-sectional view of the wheel rolling bearing device and the jig in the direction along the line BB in FIG. FIG. 3 is an enlarged view of the assembling procedure according to the assembling method as a diagram corresponding to the region A surrounded by the broken line in FIG.

まずは図１に示されるように、同組み付け方法において組み付け対象となる車輪用転がり軸受装置１は、車輪に連結されるフランジ部２を有するハブ軸３が、これに嵌入される内輪部材８と共々、ここでは２列からなる複数の転動体４，５を介して径方向外方に設けられた外輪部材６によって軸支される構造となっている。そして、この外輪部材６が、車輪の懸架装置であるナックル７の嵌入用穴７ａに圧入固定されることとなる。   First, as shown in FIG. 1, a wheel rolling bearing device 1 to be assembled in the same assembling method includes a hub shaft 3 having a flange portion 2 connected to a wheel, together with an inner ring member 8 fitted therein. Here, the structure is supported by an outer ring member 6 provided radially outward via a plurality of rolling elements 4 and 5 in two rows. Then, the outer ring member 6 is press-fitted and fixed in the fitting hole 7a of the knuckle 7 which is a wheel suspension device.

このような車輪用転がり軸受装置１、正確にはその外輪部材６を上記ナックル７の嵌入用穴７ａに圧入により組み付けるに際し、本実施の形態の組み付け方法では、これも図１に示されるように、外輪部材６の上記ハブ軸３に設けられたフランジ部２と対向する端面６ａを予めテーパ状に形成しておき、その間にくさび形からなる治具９を介挿するようにしている。この治具９はその断面構造を図１に、またその正面構造を図２に示すように、上記くさび形からなる先端９ａが外輪部材６の上記テーパ状からなる端面に対応した逆テーパ状に形成されて、その正面形状がそれぞれ扇形の内側の円弧をなす複数の、同例では３枚の弧状分割板として形成されている。そして、工作機械に用いられるチャックのように、それら各弧状分割板の図中矢印Ｆ１方向への同時駆動（移動）に基づき、まずはその開き側への移動によって上記ハブ軸３に設けられたフランジ部２を挿通させた後、引き続きその閉じ側への移動によって、図１に示されるように、外輪部材６の端面と同フランジ部２との間を塞ぐように挿入操作される。そしてその後は、この挿入した治具９により上記ハブ軸３の軸方向と直交する方向から軸心方向に印加する圧力荷重と、適宜の加圧治具によりフランジ部２側から同ハブ軸３の軸方向、すなわち図中矢印Ｆ２方向に印加する圧力荷重との協働によって、上記外輪部材６をナックル７の嵌入用穴７ａに圧入固定することとなる。   When the rolling bearing device 1 for a wheel, more precisely, the outer ring member 6 thereof is assembled by press-fitting into the fitting hole 7a of the knuckle 7, the assembly method of this embodiment also shows this as shown in FIG. The end surface 6a of the outer ring member 6 facing the flange portion 2 provided on the hub shaft 3 is formed in a tapered shape in advance, and a wedge-shaped jig 9 is inserted therebetween. The jig 9 has a cross-sectional structure as shown in FIG. 1 and a front structure as shown in FIG. 2, and the wedge-shaped tip 9 a has a reverse taper shape corresponding to the tapered end surface of the outer ring member 6. It is formed, and the front shape is formed as a plurality of arc-shaped divided plates in the same example, each forming a circular arc inside the sector. Then, like a chuck used in a machine tool, based on the simultaneous drive (movement) of these arc-shaped divided plates in the direction of arrow F1 in the drawing, first, the flange provided on the hub shaft 3 by moving toward the opening side thereof. After the portion 2 is inserted, the insertion operation is performed so as to close the gap between the end surface of the outer ring member 6 and the flange portion 2 as shown in FIG. After that, the pressure load applied in the axial direction from the direction orthogonal to the axial direction of the hub shaft 3 by the inserted jig 9 and the hub shaft 3 from the flange portion 2 side by an appropriate pressurizing jig. The outer ring member 6 is press-fitted and fixed in the fitting hole 7a of the knuckle 7 in cooperation with the pressure load applied in the axial direction, that is, the arrow F2 direction in the drawing.

図３は上述のように、本実施の形態の組み付け方法にかかる組み付け手順について、図１の破線で囲んだ領域Ａに対応してこれを拡大して示したものであり、以下、この図３を併せ参照して、本実施の形態にかかる組み付け方法についてさらに詳述する。   As described above, FIG. 3 is an enlarged view of the assembling procedure according to the assembling method of the present embodiment, corresponding to the region A surrounded by the broken line in FIG. In addition, the assembly method according to the present embodiment will be described in further detail.

本実施の形態では、図３（ａ）に示す仮圧入工程と、図３（ｂ）に示す本圧入工程との大きくは２段階の圧入工程を経て、上述した車輪用転がり軸受装置１の外輪部材６をナックル７の嵌入用穴７ａに圧入固定するようにしている。   In the present embodiment, the outer ring of the above-described rolling bearing device 1 for a wheel is largely subjected to a two-step press-fitting process of the temporary press-fitting process shown in FIG. 3A and the main press-fitting process shown in FIG. The member 6 is press-fitted and fixed in the fitting hole 7 a of the knuckle 7.

このうちまず、図３（ａ）に示す仮圧入工程では、ナックル７を固定し、上記外輪部材６と上記ハブ軸３に設けられたフランジ部２との間に上記治具９のくさび形先端９ａを挿入、当接させた状態で上記適宜の加圧治具により上記ハブ軸３のフランジ部２側から同ハブ軸３の軸方向（図中矢印Ｆ２方向）に圧力荷重を印加する。そしてこの圧力荷重の印加により、図３（ａ）に矢印Ｘ１として示す態様にて、上記外輪部材６をナックル７の嵌入用穴７ａに仮圧入する。ちなみに、この仮圧入に際して印加される圧力荷重とは、ナックル７の嵌入用穴７ａに対して同一の方向のみから印加される荷重であり、ナックル７の嵌入用穴７ａに対する外輪部材６の位置決め、並びに圧入初期時にとって有効な荷重となる。   First, in the temporary press-fitting step shown in FIG. 3A, the knuckle 7 is fixed, and the wedge-shaped tip of the jig 9 is interposed between the outer ring member 6 and the flange portion 2 provided on the hub shaft 3. With the 9a inserted and in contact, a pressure load is applied in the axial direction of the hub shaft 3 (in the direction of arrow F2 in the figure) from the flange portion 2 side of the hub shaft 3 by the appropriate pressure jig. Then, by applying this pressure load, the outer ring member 6 is temporarily press-fitted into the fitting hole 7a of the knuckle 7 in the mode shown by the arrow X1 in FIG. Incidentally, the pressure load applied during the temporary press-fitting is a load applied only from the same direction to the fitting hole 7a of the knuckle 7, and positioning of the outer ring member 6 with respect to the fitting hole 7a of the knuckle 7. In addition, the load is effective for the initial press-fitting.

そして次に、図３（ｂ）に示す本圧入工程では、こうしたハブ軸３のフランジ部２側から同ハブ軸３の軸方向への圧力荷重を保持した状態で、すなわちフランジ部２が矢印Ｆ２方向と逆方向に移動することを阻止した状態で、上記治具９によりハブ軸３の軸方向と直交する方向から軸心方向（図中矢印Ｆ１方向）に圧力荷重を印加する。そしてこの圧力荷重の印加により、図３（ｂ）に矢印Ｘ２として示す態様にて、上記外輪部材６をナックル７の嵌入用穴７ａに本圧入する。ちなみに、この本圧入に際して印加される圧力荷重とは、ナックル７の嵌入用穴７ａに対して同一の方向とはいえ、治具９を構成する上記各弧状分割板の円弧の中心に向けた絞り駆動と治具９自身の上記くさび形状との協働による極めて強い圧力荷重である。このため、圧入にかかるストロークこそ短いものの、ナックル７の嵌入用穴７ａに対する外輪部材６の最終的な嵌合固定にとっては極めて有効な荷重となる。   Next, in the main press-fitting step shown in FIG. 3B, in such a state that the pressure load in the axial direction of the hub shaft 3 from the flange portion 2 side of the hub shaft 3 is held, that is, the flange portion 2 is moved to the arrow F2. With the jig 9 being prevented from moving in the opposite direction, a pressure load is applied from the direction perpendicular to the axial direction of the hub shaft 3 to the axial direction (arrow F1 direction in the figure) by the jig 9. Then, by applying this pressure load, the outer ring member 6 is fully press-fitted into the fitting hole 7a of the knuckle 7 in the mode shown by the arrow X2 in FIG. Incidentally, the pressure load applied at the time of the main press-fitting is the same direction with respect to the insertion hole 7a of the knuckle 7, but the restriction toward the center of the arc of each arc-shaped divided plate constituting the jig 9 This is an extremely strong pressure load due to the cooperation between the drive and the wedge shape of the jig 9 itself. For this reason, although the stroke required for press-fitting is short, it is a very effective load for the final fitting and fixing of the outer ring member 6 to the fitting hole 7a of the knuckle 7.

こうしてナックル７の嵌入用穴７ａに対する外輪部材６の本圧入を終えた後は、治具９の上述した開き側への移動（駆動）により各弧状分割板の先端９ａ間の内径を上記フランジ部２の直径よりも大きく設定して同治具９を車輪用転がり軸受装置１から取り外すとともに、ナックル７等の固定を解除して、当該組み付けを終了する。   After the final press-fitting of the outer ring member 6 into the fitting hole 7a of the knuckle 7 is thus completed, the inner diameter between the tips 9a of the arc-shaped divided plates is set to the flange portion by the movement (drive) of the jig 9 to the above-mentioned opening side. The jig 9 is set to be larger than the diameter of 2 and the jig 9 is removed from the wheel rolling bearing device 1, and the knuckle 7 is released from the fixed state, and the assembly is finished.

以上説明したように、この第１の実施の形態にかかる車輪用転がり軸受装置１の組み付け方法によれば、以下のような優れた効果が得られるようになる。
（１）外輪部材６とハブ軸３に設けられたフランジ部２との間に外輪部材６の端面６ａと対向する面が該外輪部材６の端面６ａに被る角度の斜面となるくさび形の治具９をハブ軸３の軸方向と直交する方向から挿入するようにした。そして、この挿入した治具９によりハブ軸３の軸方向と直交する方向から軸心方向に印加する圧力荷重とハブ軸３のフランジ部２側から同ハブ軸３の軸方向に印加する圧力荷重との協働によって外輪部材６を上記ナックル７の嵌入用穴７ａに圧入固定するようにした。これにより、たとえ外輪部材６とハブ軸３に設けられたフランジ部２との間に十分なスペースが存在しなくとも、上記くさび形の治具９の挿入を通じてこれら外輪部材６の端面６ａとフランジ部２との間の隙間を高い汎用性をもって塞ぐことが可能となる。しかもこの治具９は、その挿入部すなわち先端９ａがくさび形を有していることで、治具９自体の厚さについてもこれを圧入に必要とされる十分な強度を確保し得る厚さに設定することができ、外輪部材６の端面６ａに対する圧力荷重の印加態様についてもその自由度が自ずと高められるようになる。すなわち上述のように、挿入した治具９によりハブ軸３の軸方向と直交する方向から軸心方向に印加する圧力荷重と、ハブ軸３のフランジ部２側から同ハブ軸３の軸方向に印加する圧力荷重との協働によって、外輪部材６を上記ナックル７の嵌入用穴７ａに圧入することが可能となる。このため、軌道面に圧痕等が生じることのない高い信頼性のもとに、しかも着実に、上記ナックル７に対して車輪用転がり軸受装置１を組み付けることができるようになる。 As described above, according to the method of assembling the wheel rolling bearing device 1 according to the first embodiment, the following excellent effects can be obtained.
(1) A wedge-shaped jig in which a surface facing the end surface 6 a of the outer ring member 6 is an inclined surface covering the end surface 6 a of the outer ring member 6 between the outer ring member 6 and the flange portion 2 provided on the hub shaft 3. The tool 9 is inserted from a direction perpendicular to the axial direction of the hub shaft 3. Then, a pressure load applied in the axial direction from a direction orthogonal to the axial direction of the hub shaft 3 by the inserted jig 9 and a pressure load applied in the axial direction of the hub shaft 3 from the flange portion 2 side of the hub shaft 3 The outer ring member 6 is press-fitted and fixed in the fitting hole 7a of the knuckle 7 in cooperation with the above. Thereby, even if there is not enough space between the outer ring member 6 and the flange portion 2 provided on the hub shaft 3, the end face 6a of the outer ring member 6 and the flange are inserted through the insertion of the wedge-shaped jig 9. It is possible to close the gap between the parts 2 with high versatility. In addition, the jig 9 has a wedge shape at the insertion portion, that is, the tip 9a, so that the thickness of the jig 9 itself can secure a sufficient strength required for press-fitting. The degree of freedom of the application mode of the pressure load to the end face 6a of the outer ring member 6 is naturally enhanced. That is, as described above, the pressure load applied in the axial direction from the direction orthogonal to the axial direction of the hub shaft 3 by the inserted jig 9, and the axial direction of the hub shaft 3 from the flange portion 2 side of the hub shaft 3. The outer ring member 6 can be press-fitted into the fitting hole 7a of the knuckle 7 in cooperation with the applied pressure load. For this reason, the rolling bearing device 1 for a wheel can be assembled to the knuckle 7 with high reliability with no indentation or the like on the raceway surface.

（２）治具９として、上記くさび形からなる斜面（先端９ａ）が外輪部材６の円形からなる端面６ａに対応した逆テーパ状に形成され、しかもその正面形状がそれぞれ扇形の内側の円弧をなす３枚の弧状分割板からなるものを用いることとした。そして、上記挿入した治具９によるハブ軸３の軸方向と直交する方向から軸心方向への圧力荷重の付与を、それら弧状分割板の円弧の中心に向けた絞り駆動に基づいて行うこととした。すなわち、工作機械に用いられるチャックのように、上記扇形の３枚の弧状分割板が径方向に同時に移動可能な構造を有するものとした。これにより、逆テーパ状からなる上記くさび形の先端９ａの形状とも相まって、上記挿入した治具９による特にハブ軸３の軸方向と直交する方向から軸心方向への圧力荷重の付与等も円滑に実現されるようになる。   (2) As the jig 9, the wedge-shaped inclined surface (tip 9 a) is formed in a reverse taper shape corresponding to the circular end surface 6 a of the outer ring member 6, and the front shape thereof is a fan-shaped inner arc. It was decided to use what consists of three arcuate division plates. And applying the pressure load from the direction orthogonal to the axial direction of the hub shaft 3 to the axial direction by the inserted jig 9 based on the diaphragm drive toward the center of the arc of the arc-shaped divided plates; did. That is, like the chuck used for a machine tool, the three fan-shaped arc-shaped divided plates have a structure capable of moving in the radial direction simultaneously. Thereby, in combination with the shape of the wedge-shaped tip 9a having a reverse taper shape, the application of a pressure load in the axial direction from the direction perpendicular to the axial direction of the hub shaft 3 by the inserted jig 9 is also smooth. Will be realized.

（３）しかも、外輪部材６の円形からなる端面６ａの形状についてもこれを、上記治具９の先端９ａの斜面角度に対応したテーパ形状に予め形成しておくこととした。これにより、治具９を介した圧力荷重の印加に際して、これに当接される外輪部材６の端面６ａに対する十分な接触面積を確保することができるようになり、ひいては上記ナックル７の嵌入用穴７ａに対する外輪部材６のより円滑な圧入が可能となる。   (3) In addition, the shape of the end surface 6 a made of a circle of the outer ring member 6 is also formed in advance in a tapered shape corresponding to the slope angle of the tip 9 a of the jig 9. As a result, when a pressure load is applied through the jig 9, a sufficient contact area with the end surface 6a of the outer ring member 6 in contact with the jig 9 can be ensured. As a result, the insertion hole of the knuckle 7 can be secured. Smoother press-fitting of the outer ring member 6 to 7a becomes possible.

（４）仮圧入工程及び本圧入工程といった、それぞれ圧力荷重の印加態様が異なる２段階の圧入工程を経て、外輪部材６を上記ナックル７の嵌入用穴７ａに圧入固定することとした。これにより、上記仮圧入工程と上記本圧入工程とで、それら各圧力荷重の特性に基づいた印加態様の調整が可能となり、ナックル７の嵌入用穴７ａに対する外輪部材６の圧入固定をより安定かつ円滑に実現することができるようになる。
（第２の実施の形態）
図４〜図６は、本発明にかかる車輪用転がり軸受装置の組み付け方法についてその第２の実施の形態を示したものであり、以下、先の図１〜図３に示した第１の実施の形態にかかる組み付け方法との相違点を中心に、同第２の実施の形態にかかる組み付け方法について詳述する。 (4) The outer ring member 6 is press-fitted and fixed in the fitting hole 7a of the knuckle 7 through two stages of press-fitting processes, each of which has a different pressure load application mode, such as a temporary press-fitting process and a main press-fitting process. Thereby, in the temporary press-fitting step and the main press-fitting step, it is possible to adjust the application mode based on the characteristics of each pressure load, and the press-fitting and fixing of the outer ring member 6 to the fitting hole 7a of the knuckle 7 can be performed more stably and It can be realized smoothly.
(Second Embodiment)
4 to 6 show a second embodiment of the method for assembling the wheel rolling bearing device according to the present invention. The first embodiment shown in FIGS. The assembling method according to the second embodiment will be described in detail focusing on the differences from the assembling method according to the embodiment.

まず図４は、第１の実施の形態における先の図１に対応する図として、本実施の形態にかかる車輪用転がり軸受装置の組み付け方法の概念をここで用いる治具と共に部分断面図として示したものであり、また図５は、同組み付け方法において用いられる補助治具についてその正面構造を示したものである。なお本実施の形態においても、図４に示す治具９については、第１の実施の形態において採用したもの、すなわち先の図２にその正面構造を例示したものと同様のものを用いている。   First, FIG. 4 is a diagram corresponding to FIG. 1 in the first embodiment, and shows a concept of a method of assembling the wheel rolling bearing device according to the present embodiment as a partial sectional view together with the jig used here. FIG. 5 shows the front structure of the auxiliary jig used in the assembling method. Also in this embodiment, the jig 9 shown in FIG. 4 is the same as that used in the first embodiment, that is, the same as that illustrated in FIG. .

さて図４に示すように、組み付け対象となる車輪用転がり軸受装置１としては、本実施の形態にかかる組み付け方法においても、基本的に先の第１の実施の形態のものと同様のものを想定している。ただしここでは、外輪部材６の上記ハブ軸３に設けられたフランジ部２と対向する端面６ｂをあえてテーパ状とすることなく、代わりに、図中の矢印Ｆ２側から見た正面構造を図５に示すような補助治具１０をこの外輪部材６の端面６ｂと上記フランジ部２との間に装着するようにしている。すなわち本実施の形態にあっては、同部分への上記治具９の挿入に先立ち、当該治具９の先端９ａの斜面角度（逆テーパ角度）に対応したテーパ面１０ａを有する複数の、同例では２個のリング分割体からなる補助治具１０を装着する。そして、上記治具９を挿入した状態での前述した各圧力荷重の付与を、この装着した補助治具１０を介して行うこととする。   Now, as shown in FIG. 4, the wheel rolling bearing device 1 to be assembled is basically the same as that of the first embodiment also in the assembly method according to the present embodiment. Assumed. However, here, the end structure 6b facing the flange portion 2 provided on the hub shaft 3 of the outer ring member 6 is not tapered but the front structure viewed from the arrow F2 side in FIG. An auxiliary jig 10 as shown in FIG. 6 is mounted between the end face 6b of the outer ring member 6 and the flange portion 2. That is, in the present embodiment, prior to the insertion of the jig 9 into the same portion, a plurality of the same having a tapered surface 10 a corresponding to the slope angle (reverse taper angle) of the tip 9 a of the jig 9. In the example, the auxiliary jig 10 composed of two ring divided bodies is mounted. The application of the pressure loads described above with the jig 9 inserted is performed through the attached auxiliary jig 10.

図６は、先の図３に対応する図として、本実施の形態の組み付け方法での組み付け手順を図４の破線で囲んだ領域Ａに対応してこれを拡大して示したものであり、以下、第１の実施の形態に準ずるも、この図６を併せ参照して、本実施の形態にかかる組み付け方法をさらに詳述する。   FIG. 6 is an enlarged view corresponding to the area A surrounded by the broken line in FIG. 4 as an assembling procedure in the assembling method of the present embodiment as a diagram corresponding to FIG. Hereinafter, the assembly method according to this embodiment will be described in more detail with reference to FIG.

本実施の形態でも、図６（ａ）に示す仮圧入工程と、図６（ｂ）に示す本圧入工程との大きくは２段階の圧入工程を経て、上述した車輪用転がり軸受装置１の外輪部材６をナックル７の嵌入用穴７ａに圧入固定する。   Also in the present embodiment, the outer ring of the above-described rolling bearing device 1 for a wheel is obtained through a two-step press-fitting process of the temporary press-fitting process shown in FIG. 6A and the main press-fitting process shown in FIG. 6B. The member 6 is press-fitted and fixed in the insertion hole 7 a of the knuckle 7.

このうちまず、図６（ａ）に示す仮圧入工程では、ナックル７を固定し、上記外輪部材６と上記ハブ軸３に設けられたフランジ部２との間に補助治具１０を装着した後、該補助治具１０のテーパ面１０ａと上記治具９のくさび形先端９ａとが当接するように、治具９を挿入する。そして、この状態で適宜の加圧治具により上記ハブ軸３のフランジ部２側から同ハブ軸３の軸方向（図中矢印Ｆ２方向）に圧力荷重を印加することにより、図６（ａ）に矢印Ｘ１として示す態様にて、上記外輪部材６をナックル７の嵌入用穴７ａに仮圧入する。ちなみに、この仮圧入に際して印加される圧力荷重も、ナックル７の嵌入用穴７ａに対して同一の方向のみから印加される荷重であり、ナックル７の嵌入用穴７ａに対する外輪部材６の位置決め、並びに圧入初期時にとって有効な荷重となる。   First of all, in the temporary press-fitting step shown in FIG. 6A, after the knuckle 7 is fixed and the auxiliary jig 10 is mounted between the outer ring member 6 and the flange portion 2 provided on the hub shaft 3. The jig 9 is inserted so that the tapered surface 10a of the auxiliary jig 10 and the wedge-shaped tip 9a of the jig 9 come into contact with each other. In this state, a pressure load is applied from the flange portion 2 side of the hub shaft 3 to the axial direction of the hub shaft 3 (in the direction of arrow F2 in the figure) with an appropriate pressure jig, thereby FIG. The outer ring member 6 is temporarily press-fitted into the fitting hole 7a of the knuckle 7 in the manner indicated by the arrow X1. Incidentally, the pressure load applied during the temporary press-fitting is also a load applied only from the same direction to the fitting hole 7a of the knuckle 7, and positioning of the outer ring member 6 with respect to the fitting hole 7a of the knuckle 7, and Effective load for the initial press-fitting.

そして次に、図６（ｂ）に示す本圧入工程では、こうしたハブ軸３のフランジ部２側から同ハブ軸３の軸方向への圧力荷重を保持した状態で、すなわちフランジ部２が矢印Ｆ２方向と逆方向に移動することを阻止した状態で、上記治具９によりハブ軸３の軸方向と直交する方向から軸心方向（図中矢印Ｆ１方向）に圧力荷重を印加する。そしてこの圧力荷重の印加により、図６（ｂ）に矢印Ｘ２として示す態様にて、上記外輪部材６をナックル７の嵌入用穴７ａに本圧入する。ちなみに、この本圧入に際して印加される圧力荷重も、ナックル７の嵌入用穴７ａに対して同一の方向とはいえ、治具９を構成する各弧状分割板の円弧の中心に向けた絞り駆動と治具９自身の上記くさび形状との協働による極めて強い圧力荷重である。このため、この圧力荷重も、圧入にかかるストロークこそ短いものの、ナックル７の嵌入用穴７ａに対する外輪部材６の最終的な嵌合固定にとっては極めて有効な荷重となる。   Next, in the main press-fitting step shown in FIG. 6B, in such a state that the pressure load from the flange portion 2 side of the hub shaft 3 to the axial direction of the hub shaft 3 is maintained, that is, the flange portion 2 is moved to the arrow F2. With the jig 9 being prevented from moving in the opposite direction, a pressure load is applied from the direction perpendicular to the axial direction of the hub shaft 3 to the axial direction (arrow F1 direction in the figure) by the jig 9. Then, by applying this pressure load, the outer ring member 6 is fully press-fitted into the fitting hole 7a of the knuckle 7 in the manner shown by the arrow X2 in FIG. Incidentally, the pressure load applied at the time of this press-fitting is the same as the insertion direction of the insertion hole 7a of the knuckle 7, but the diaphragm drive toward the center of the arc of each arc-shaped dividing plate constituting the jig 9 It is a very strong pressure load due to cooperation with the wedge shape of the jig 9 itself. For this reason, this pressure load is also a very effective load for the final fitting and fixing of the outer ring member 6 to the fitting hole 7a of the knuckle 7, although the stroke required for the press fitting is short.

こうしてナックル７の嵌入用穴７ａに対する外輪部材６の本圧入を終えた後は、治具９の上述した開き側への移動（駆動）により各弧状分割板の先端９ａ間の内径を上記フランジ部２の直径よりも大きく設定して同治具９、及び補助治具１０を車輪用転がり軸受装置１から取り外すとともに、ナックル７等の固定を解除して、当該組み付けを終了する。   After the final press-fitting of the outer ring member 6 into the fitting hole 7a of the knuckle 7 is thus completed, the inner diameter between the tips 9a of the arc-shaped divided plates is set to the flange portion by the movement (drive) of the jig 9 to the above-mentioned opening side. The jig 9 and the auxiliary jig 10 are removed from the wheel rolling bearing device 1 with a diameter larger than 2, and the knuckle 7 and the like are released, and the assembly is finished.

このように、本実施の形態にかかる車輪用転がり軸受装置の組み付け方法によっても、先の第１の実施の形態による前記（１）、（２）及び（４）の効果と同等、もしくはそれらに準じた効果が得られるとともに、前記（３）の効果に代わる効果として、次のような効果が得られるようになる。   As described above, the method of assembling the wheel rolling bearing device according to the present embodiment is also equivalent to or equivalent to the effects (1), (2), and (4) of the first embodiment. The equivalent effect is obtained, and the following effect can be obtained as an alternative to the effect (3).

（５）治具９の挿入に先立って外輪部材６の円形からなる端面６ｂに同治具９の斜面角度に対応したテーパ面１０ａを有するリング分割体からなる補助治具１０を装着し、治具９を挿入した状態での各圧力荷重の付与をこの装着した補助治具１０を介して行うこととした。これにより、外輪部材６の端面６ａがテーパを有しない通常の円筒端面形状であったとしても、この補助治具１０を介して当接される外輪部材６の端面６ａに対する十分な接触面積を確保することができるようになり、ひいては上記ナックル７の嵌入用穴７ａに対する外輪部材６のより円滑な圧入が可能となる。   (5) Prior to insertion of the jig 9, the auxiliary jig 10 made of a ring divided body having a tapered surface 10 a corresponding to the slope angle of the jig 9 is attached to the circular end surface 6 b of the outer ring member 6, and the jig The application of each pressure load in the state where 9 was inserted was performed through the attached auxiliary jig 10. Thereby, even if the end surface 6a of the outer ring member 6 has a normal cylindrical end surface shape without a taper, a sufficient contact area with the end surface 6a of the outer ring member 6 abutted through the auxiliary jig 10 is ensured. As a result, the outer ring member 6 can be more smoothly press-fitted into the fitting hole 7a of the knuckle 7.

（他の実施の形態）
なお、上記各実施の形態は、以下のように変更して実施することもできる。
・上記第２の実施の形態では、補助治具１０として、図５に例示したような半円弧状からなる２個のリング分割体を用いることとしたが、上記外輪部材６と上記ハブ軸３に設けられたフランジ部２との間に外部から装着可能でありさえすればその分割数は任意であり、他に３分割以上からなるリング分割体を用いることもできる。 (Other embodiments)
The above-described embodiments can be implemented with the following modifications.
In the second embodiment, as the auxiliary jig 10, two ring divided bodies having a semicircular arc shape as illustrated in FIG. 5 are used. However, the outer ring member 6 and the hub shaft 3 are used. The number of divisions is arbitrary as long as it can be attached from the outside to the flange portion 2 provided on the ring portion, and a ring divided body having three or more divisions can also be used.

・同様に、上記各実施の形態では、治具９として、図２に例示したような正面形状がそれぞれ扇形をなす３枚の弧状分割板からなるものを用いることとしたが、これも上記外輪部材６と上記ハブ軸３に設けられたフランジ部２との間に外部から挿入可能でありさえすればその分割数は任意である。すなわち、例えば扇形をなす２枚の、あるいは４枚以上の弧状分割板からなるもの等も適宜採用可能である。また、この治具９は、その先端９ａの形状が上記テーパ状からなる外輪部材６の端面６ａあるいは補助治具１０のテーパ面１０ａに対応する角度の斜面を有してハブ軸３の径方向に駆動（移動）可能な構造を有するものであればよく、その正面形状が必ずしも扇形をなしている必要もない。   Similarly, in each of the above embodiments, the jig 9 is made of three arc-shaped divided plates each having a fan-shaped front shape as illustrated in FIG. The number of divisions is arbitrary as long as it can be inserted from the outside between the member 6 and the flange portion 2 provided on the hub shaft 3. That is, for example, two or more arc-shaped divided plates having a sector shape can be appropriately employed. Further, the jig 9 has a slope at an angle corresponding to the end surface 6a of the outer ring member 6 or the tapered surface 10a of the auxiliary jig 10 whose tip 9a has the shape of the taper. The front surface shape does not necessarily have to be a fan shape.

・一方、上記第１の実施の形態においてはテーパ状からなる端面６ａを有する外輪部材６を用い、また上記第２の実施の形態においてはテーパ面１０ａを有する補助治具１０を用いて治具９とのより大きな接触面積を確保するようにした。ただし基本的には、上記くさび形の治具９を用いることのみでも、図３あるいは図６に例示した態様での圧入に基づく車輪用転がり軸受装置の組み付けは可能である。すなわち、図４に例示したようなテーパ状ではない端面６ｂを有する外輪部材６に対し、上記補助治具１０を用いることなく、治具９のみを用いて同外輪部材６を上記ナックル７の嵌入用穴７ａに圧入することもできる。この場合、外輪部材６の端面６ｂと治具９の先端９ａとの接触面積が小さくなって、その面圧が高まるものの、治具９の先端９ａがくさび形の形状を有していることで、原理上は、図３あるいは図６に例示した態様での圧入は可能である。   On the other hand, the outer ring member 6 having the tapered end surface 6a is used in the first embodiment, and the auxiliary jig 10 having the tapered surface 10a is used in the second embodiment. A larger contact area with 9 was secured. However, basically, it is possible to assemble the rolling bearing device for a wheel based on press-fitting in the mode illustrated in FIG. 3 or FIG. 6 only by using the wedge-shaped jig 9. That is, the outer ring member 6 having the non-tapered end face 6b illustrated in FIG. 4 is inserted into the outer ring member 6 with the knuckle 7 using only the jig 9 without using the auxiliary jig 10. It can also be press-fitted into the working hole 7a. In this case, although the contact area between the end surface 6b of the outer ring member 6 and the tip 9a of the jig 9 is reduced and the surface pressure is increased, the tip 9a of the jig 9 has a wedge shape. In principle, press-fitting in the manner illustrated in FIG. 3 or FIG. 6 is possible.

・また、実用上は、図３あるいは図６に例示した組み付け方法によるように、仮圧入工程と本圧入工程とで、それら各圧力荷重の特性に基づいた印加態様の調整を図りつつナックル７の嵌入用穴７ａに対する外輪部材６の圧入固定を行うことが望ましいが、上記各圧力荷重についてはこれらを同時に印加するようにしてもよい。要は、外輪部材６の端面に被る角度の斜面を有するくさび形の治具をハブ軸３の軸方向と直交する方向から挿入し、該挿入した治具によりハブ軸３の軸方向と直交する方向から軸心方向に印加する圧力荷重とハブ軸３のフランジ部２側から同ハブ軸３の軸方向に印加する圧力荷重との協働によって外輪部材６をナックル７の嵌入用穴７ａに圧入固定する方法であればよい。   In practical use, as in the assembling method illustrated in FIG. 3 or FIG. 6, the knuckle 7 is adjusted while adjusting the application mode based on the characteristics of each pressure load in the temporary press-fitting step and the main press-fitting step. Although it is desirable to press-fit the outer ring member 6 into the fitting hole 7a, these pressure loads may be applied simultaneously. In short, a wedge-shaped jig having an inclined surface covering the end face of the outer ring member 6 is inserted from a direction orthogonal to the axial direction of the hub shaft 3, and is orthogonal to the axial direction of the hub shaft 3 by the inserted jig. The outer ring member 6 is press-fitted into the fitting hole 7a of the knuckle 7 by the cooperation of the pressure load applied in the axial direction from the direction and the pressure load applied in the axial direction of the hub shaft 3 from the flange portion 2 side of the hub shaft 3. Any method of fixing may be used.

本発明にかかる車輪用転がり軸受装置の組み付け方法の第１の実施の形態についてその概要を示す部分断面図。The fragmentary sectional view which shows the outline | summary about 1st Embodiment of the assembly method of the rolling bearing device for wheels concerning this invention. 同第１の実施の形態の組み付け方法において用いる治具の正面構造を模式的に示す正面図。The front view which shows typically the front structure of the jig | tool used in the assembly | attachment method of the said 1st Embodiment. （ａ）及び（ｂ）は、図１の破線領域Ａに対応する拡大図として同第１の実施の形態にかかる組み付け方法の組み付け手順を示す部分断面図。(A) And (b) is a fragmentary sectional view which shows the assembly | attachment procedure of the assembly | attachment method concerning the 1st Embodiment as an enlarged view corresponding to the broken-line area | region A of FIG. 本発明にかかる車輪用転がり軸受装置の組み付け方法の第２の実施の形態についてその概要を示す部分断面図。The fragmentary sectional view which shows the outline | summary about 2nd Embodiment of the assembly method of the rolling bearing device for wheels concerning this invention. 同第２の実施の形態の組み付け方法において用いる補助治具の正面構造を示す正面図。The front view which shows the front structure of the auxiliary jig used in the assembly | attachment method of the said 2nd Embodiment. （ａ）及び（ｂ）は、図４の破線領域Ａに対応する拡大図として同第２の実施の形態にかかる組み付け方法の組み付け手順を示す部分断面図。(A) And (b) is a fragmentary sectional view which shows the assembly | attachment procedure of the assembly | attachment method concerning the 2nd Embodiment as an enlarged view corresponding to the broken-line area | region A of FIG.

符号の説明Explanation of symbols

１…車輪用転がり軸受装置、２…フランジ部、３…ハブ軸、４，５…転動体、６…外輪部材、６ａ，６ｂ…端面、７…ナックル、７ａ…嵌入用穴、８…内輪部材、９…治具、９ａ…先端、１０…補助治具、１０ａ…テーパ面。   DESCRIPTION OF SYMBOLS 1 ... Rolling bearing apparatus for wheels, 2 ... Flange part, 3 ... Hub shaft, 4, 5 ... Rolling element, 6 ... Outer ring member, 6a, 6b ... End surface, 7 ... Knuckle, 7a ... Insertion hole, 8 ... Inner ring member 9 ... Jig, 9a ... Tip, 10 ... Auxiliary jig, 10a ... Tapered surface.

Claims (5)

車輪に連結されるフランジ部を有するハブ軸が複列からなる複数の転動体を介して径方向外方に設けられた外輪部材によって軸支される車輪用転がり軸受装置の前記外輪部材を車輪の懸架装置であるナックルの嵌入用穴に圧入固定する車輪用転がり軸受装置の組み付け方法であって、
前記外輪部材と前記ハブ軸に設けられたフランジ部との間に外輪部材の端面と対向する面が該外輪部材の端面に被る角度の斜面となるくさび形の治具を前記ハブ軸の軸方向と直交する方向から挿入し、該挿入した治具により前記ハブ軸の軸方向と直交する方向から軸心方向に印加する圧力荷重と前記ハブ軸のフランジ部側から同ハブ軸の軸方向に印加する圧力荷重との協働によって前記外輪部材を前記ナックルの嵌入用穴に圧入固定することを特徴とする車輪用転がり軸受装置の組み付け方法。 A hub axle having a flange portion connected to a wheel is supported by the outer ring member of a wheel rolling bearing device supported by an outer ring member provided radially outward via a plurality of rolling elements in a plurality of rows. A method for assembling a rolling bearing device for a wheel that is press-fitted into a fitting hole of a knuckle that is a suspension device,
A wedge-shaped jig in which the surface facing the end surface of the outer ring member is an inclined surface covering the end surface of the outer ring member between the outer ring member and the flange portion provided on the hub shaft is an axial direction of the hub shaft. Is inserted from the direction orthogonal to the axial direction of the hub shaft, and the pressure load applied in the axial direction from the direction orthogonal to the axial direction of the hub shaft by the inserted jig and applied from the flange portion side of the hub shaft to the axial direction of the hub shaft. A method of assembling a rolling bearing device for a wheel, wherein the outer ring member is press-fitted and fixed in a fitting hole of the knuckle by cooperating with a pressure load to be applied. 前記治具は、前記くさび形からなる斜面が前記外輪部材の円形からなる端面に対応した逆テーパ状に形成されてその正面形状がそれぞれ扇形の内側の円弧をなす複数の弧状分割板として形成されてなり、前記挿入した治具による前記ハブ軸の軸方向と直交する方向から軸心方向への圧力荷重の付与が、それら弧状分割板の円弧の中心に向けた絞り駆動に基づいて行われる請求項１に記載の車輪用転がり軸受装置の組み付け方法。   The jig is formed as a plurality of arc-shaped divided plates each having a wedge-shaped inclined surface formed in a reverse taper shape corresponding to a circular end surface of the outer ring member, and a front shape thereof forming a circular arc inside a sector. Thus, the application of the pressure load from the direction orthogonal to the axial direction of the hub shaft to the axial direction by the inserted jig is performed based on the diaphragm drive toward the center of the arc of the arc-shaped divided plates. A method for assembling the wheel rolling bearing device according to Item 1. 前記外輪部材の円形からなる端面の形状を、前記治具の斜面角度に対応したテーパ形状としておく請求項１または２に記載の車輪用転がり軸受装置の組み付け方法。   The method of assembling the rolling bearing device for a wheel according to claim 1 or 2, wherein a shape of an end face made of a circle of the outer ring member is a tapered shape corresponding to a slope angle of the jig. 前記治具の挿入に先立って前記外輪部材の円形からなる端面に前記治具の斜面角度に対応したテーパ形状を有する複数のリング分割体からなる補助治具を装着し、前記治具を挿入した状態での前記各圧力荷重の付与をこの装着した補助治具を介して行う請求項１または２に記載の車輪用転がり軸受装置の組み付け方法。   Prior to the insertion of the jig, an auxiliary jig made of a plurality of ring segments having a tapered shape corresponding to the slope angle of the jig was attached to the circular end surface of the outer ring member, and the jig was inserted. The method of assembling the rolling bearing device for a wheel according to claim 1 or 2, wherein the application of each pressure load in a state is performed through the attached auxiliary jig. 前記挿入した治具により前記ハブ軸の軸方向と直交する方向から軸心方向に印加する圧力荷重と前記ハブ軸のフランジ部側から同ハブ軸の軸方向に印加する圧力荷重との協働による前記外輪部材の前記ナックルの嵌入用穴への圧入固定が、
ａ．前記外輪部材と前記ハブ軸に設けられたフランジ部との間に前記治具のくさび形先端を挿入、当接させた状態での前記ハブ軸のフランジ部側から同ハブ軸の軸方向への圧力荷重の印加に基づく仮圧入工程、及び
ｂ．前記ハブ軸のフランジ部側から同ハブ軸の軸方向への圧力荷重を保持した状態での前記ハブ軸の軸方向と直交する方向から軸心方向への圧力荷重の印加に基づく本圧入工程、
の２段階の工程を経て行われる請求項１〜４のいずれか一項に記載の車輪用転がり軸受装置の組み付け方法。 By the cooperation of the pressure load applied in the axial direction from the direction orthogonal to the axial direction of the hub shaft by the inserted jig and the pressure load applied in the axial direction of the hub shaft from the flange portion side of the hub shaft. Press-fitting and fixing the outer ring member into the insertion hole of the knuckle,
a. The wedge-shaped tip end of the jig is inserted between the outer ring member and the flange portion provided on the hub shaft, and the hub shaft extends from the flange portion side in the axial direction of the hub shaft. A temporary press-fitting step based on application of a pressure load; and b. A main press-fitting step based on the application of the pressure load in the axial direction from the direction orthogonal to the axial direction of the hub shaft in a state in which the pressure load in the axial direction of the hub shaft is held from the flange portion side of the hub shaft;
The assembly method of the rolling bearing device for wheels as described in any one of Claims 1-4 performed through the process of these 2 steps | paragraphs.
JP2007099574A 2007-04-05 2007-04-05 Assembly method of rolling bearing device for wheel Expired - Fee Related JP4798051B2 (en)

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JPS6196217A (en) * 1984-10-17 1986-05-14 Ntn Toyo Bearing Co Ltd Device for fixing inner race of bearing to shaft
JPH0655372A (en) * 1992-08-07 1994-03-01 Mitsuba Electric Mfg Co Ltd Bearing press-fitting method and device therefor
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