JP2003089301A - Bearing device for driving wheel - Google Patents
Bearing device for driving wheelInfo
- Publication number
- JP2003089301A JP2003089301A JP2001282647A JP2001282647A JP2003089301A JP 2003089301 A JP2003089301 A JP 2003089301A JP 2001282647 A JP2001282647 A JP 2001282647A JP 2001282647 A JP2001282647 A JP 2001282647A JP 2003089301 A JP2003089301 A JP 2003089301A
- Authority
- JP
- Japan
- Prior art keywords
- joint member
- hub wheel
- outer joint
- bearing device
- drive wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車等の駆動車
輪を支持する駆動車輪用軸受装置に関するもので、特
に、ハブ輪と等速自在継手と複列の転がり軸受とをユニ
ット化した駆動車輪用軸受装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive wheel bearing device for supporting a drive wheel of an automobile or the like, and more particularly to a drive wheel in which a hub wheel, a constant velocity universal joint, and a double row rolling bearing are unitized. Bearing device.
【０００２】[0002]
【従来の技術】ＦＲ車の後輪、ＦＦ車の前輪、あるいは
４ＷＤ車の全輪といった自動車の駆動輪は、駆動車輪用
軸受装置により懸架装置に支持する。近年、駆動車輪用
軸受装置は軽量・コンパクト化を狙って、ハブ輪と等速
自在継手と軸受部とをユニット化する傾向にある。2. Description of the Related Art Driving wheels of an automobile such as a rear wheel of an FR vehicle, a front wheel of an FF vehicle, or all wheels of a 4WD vehicle are supported by a suspension device by a bearing device for driving wheels. In recent years, a drive wheel bearing device tends to be unitized with a hub wheel, a constant velocity universal joint, and a bearing portion aiming at weight reduction and compactness.
【０００３】図１０は従来の駆動車輪用軸受装置を示す
縦断面図で、ハブ輪５０と、軸受部６０と、等速自在継
手７０とをユニット化して構成している。ハブ輪５０は
車輪（図示せず）を取り付けるための車輪取付フランジ
５１を一体に有し、この車輪取付フランジ５１の円周等
配位置には車輪を固定するためのハブボルト５２を植設
している。FIG. 10 is a vertical cross-sectional view showing a conventional drive wheel bearing device, in which a hub wheel 50, a bearing portion 60, and a constant velocity universal joint 70 are unitized. The hub wheel 50 integrally has a wheel mounting flange 51 for mounting a wheel (not shown), and hub bolts 52 for fixing the wheel are planted at equally spaced circumferential positions of the wheel mounting flange 51. There is.
【０００４】軸受部６０は外方部材６１と内方部材６２
と複列の転動体６３、６３とからなり、外方部材６１は
外周に車体（図示せず）に取り付けるための車体取付フ
ランジ６４を一体に有し、内周には複列の転走面６１
ａ、６１ａを形成している。一方、内方部材６２は、前
記した外方部材６１の転走面６１ａ、６１ａに対向する
複列の転走面５０ａ、７１ａを形成している。この一方
の転走面５０ａはハブ輪５０の外周に一体形成し、他方
の転走面７１ａは等速自在継手７０の外側継手部材７１
の外周に一体形成している。複列の転動体６３、６３を
これら転走面６１ａ、５０ａと６１ａ、７１ａ間にそれ
ぞれ収容し、保持器６５、６５で転動自在に保持してい
る。この場合、内方部材６２はハブ輪５０と外側継手部
材７１を指す。軸受部６０の端部にはシール６６、６７
を装着し、軸受内部に封入した潤滑グリースの漏洩と、
外部からの雨水やダスト等の侵入を防止している。The bearing 60 includes an outer member 61 and an inner member 62.
The outer member 61 integrally has a vehicle body mounting flange 64 for mounting on a vehicle body (not shown) on the outer periphery, and a double row rolling surface on the inner periphery. 61
a and 61a are formed. On the other hand, the inner member 62 forms the double-row rolling surfaces 50a and 71a facing the rolling surfaces 61a and 61a of the outer member 61. The one rolling surface 50a is integrally formed on the outer periphery of the hub wheel 50, and the other rolling surface 71a is the outer joint member 71 of the constant velocity universal joint 70.
Is integrally formed on the outer periphery of the. The double-row rolling elements 63, 63 are housed between the rolling surfaces 61a, 50a and 61a, 71a, respectively, and are rotatably held by the cages 65, 65. In this case, the inner member 62 refers to the hub wheel 50 and the outer joint member 71. Seals 66, 67 are provided at the ends of the bearing 60.
And the leakage of lubricating grease sealed inside the bearing,
Prevents rainwater and dust from entering from the outside.
【０００５】等速自在継手７０は外側継手部材７１と図
示しない継手内輪、ケージ、およびトルク伝達ボールと
からなる。外側継手部材７１はカップ状のマウス部７２
と、このマウス部７２から軸方向に延びる軸部７３を有
し、マウス部７２の内周には軸方向に延びる曲線状のト
ラック溝７２ａを形成している。The constant velocity universal joint 70 comprises an outer joint member 71, a joint inner ring (not shown), a cage, and a torque transmission ball. The outer joint member 71 is a cup-shaped mouth portion 72.
The mouse portion 72 has a shaft portion 73 that extends in the axial direction, and a curved track groove 72a that extends in the axial direction is formed on the inner periphery of the mouse portion 72.
【０００６】中空に形成した外側継手部材７１の軸部７
３をハブ輪５０に内嵌すると共に、ハブ輪５０の内周面
に凹凸部５３を形成し、軸部７３を拡径してこの凹凸部
５３に食い込ませ、その嵌合部を加締めてハブ輪５０と
外側継手部材７１とを塑性結合させている（特開２００
１−１８６０５号）。The shaft portion 7 of the outer joint member 71 formed hollow
3 is fitted in the hub wheel 50, and a concavo-convex portion 53 is formed on the inner peripheral surface of the hub wheel 50, the shaft portion 73 is expanded in diameter to bite into the concavo-convex portion 53, and the fitting portion is caulked. The hub wheel 50 and the outer joint member 71 are plastically connected to each other (JP-A-200).
No. 1-18605).
【０００７】前記の駆動車輪用軸受装置では、従来のセ
レーション等のトルク伝達手段に比べ嵌合部の緩みを防
止でき、かつ嵌合部の摩耗を抑制することができるた
め、装置の耐久性と操縦安定性を向上させることができ
る。また、この結合部はトルク伝達手段と、ハブ輪と外
側継手部材の結合手段とを併せ持つため、一層の軽量・
コンパクト化に寄与する。In the above-described drive wheel bearing device, loosening of the fitting portion can be prevented and wear of the fitting portion can be suppressed as compared with the conventional torque transmitting means such as serrations, so that the durability of the device is improved. The steering stability can be improved. Further, since this connecting portion has both torque transmitting means and connecting means for the hub wheel and the outer joint member, the weight is further reduced.
Contributes to compactness.
【０００８】[0008]
【発明が解決しようとする課題】しかし、駆動車輪用軸
受装置において、車輪を取付けるハブ輪と外側継手部材
とを塑性変形によって結合する手段を採用しているた
め、製品の結合状況を非破壊方式で確認することは難し
く、結合部の強度や耐久性に対する品質保証は、製品の
抜取り検査による破壊検査に委ねていた。こうした結合
部の品質はハブ輪、すなわち車輪の脱落に直結するた
め、フェールセーフの観点でそのさらなる信頼性の向上
が望まれている。However, in the bearing device for a drive wheel, since the means for connecting the hub wheel for mounting the wheel and the outer joint member by plastic deformation is adopted, the state of product connection is non-destructive. Since it is difficult to confirm with, the quality assurance for the strength and durability of the joint was left to the destructive inspection by the sampling inspection of the product. Since the quality of such a joint is directly connected to the hub wheel, that is, the wheel comes off, further improvement in reliability is desired from the viewpoint of fail-safe.
【０００９】本発明は、このような事情に鑑みてなされ
たもので、大きなモーメント荷重が装置に作用して結合
部に緩みが万一発生しても、大事には進展しないフェー
ルセーフ機能を有する駆動車輪用軸受装置を提供するこ
とを目的としている。The present invention has been made in view of the above circumstances, and has a fail-safe function in which even if a large moment load acts on the device to loosen the joint, it does not progress. An object of the present invention is to provide a bearing device for driving wheels.
【００１０】[0010]
【課題を解決するための手段】係る目的を達成すべく、
本発明のうち請求項１記載の発明は、ハブ輪と等速自在
継手と複列の転がり軸受とをユニット化し、前記ハブ輪
と前記等速自在継手の外側継手部材とを嵌合させ、前記
複列の転がり軸受における内側転走面のうち一方を前記
ハブ輪に形成すると共に、他方を外側継手部材に形成し
た駆動車輪用軸受装置において、前記ハブ輪と前記外側
継手部材の嵌合部で、外径側に配設した部材に硬化させ
た凹凸部を形成すると共に、この凹凸部に、内径側に配
設した部材を拡径させて食い込ませることにより、前記
ハブ輪と前記外側継手部材とを一体化し、さらに、両部
材を軸方向に固定する結合手段を設けた構成を採用し
た。[Means for Solving the Problems] In order to achieve the purpose,
According to a first aspect of the present invention, the hub wheel, the constant velocity universal joint, and the double row rolling bearing are unitized, and the hub wheel and the outer joint member of the constant velocity universal joint are fitted to each other, and In a drive wheel bearing device in which one of inner rolling surfaces of a double-row rolling bearing is formed in the hub wheel and the other is formed in an outer joint member, a fitting portion between the hub wheel and the outer joint member is used. By forming a hardened concavo-convex portion on a member arranged on the outer diameter side and enlarging the member arranged on the inner diameter side to bite into the concavo-convex portion, the hub wheel and the outer joint member are formed. And (3) are integrated, and a connecting means for fixing both members in the axial direction is provided.
【００１１】このように、塑性結合によりハブ輪と外側
継手部材とを一体化すると共に、両部材を軸方向に固定
する結合手段を別途追加したため、結合部の不具合がハ
ブ輪の脱落に直結しないフェールセーフ機能を有し、結
合部の強度や耐久性に対する信頼性が格段に向上する。As described above, since the hub wheel and the outer joint member are integrated by the plastic connection and the connecting means for fixing the both members in the axial direction is additionally provided, the failure of the connecting portion does not directly result in the hub wheel falling off. It has a fail-safe function, and the reliability of the strength and durability of the joint is greatly improved.
【００１２】また、請求項２に記載の発明のように、前
記内径側に配設した部材の端部を径方向外方に塑性変形
させて加締部とし、この加締部により前記ハブ輪と前記
外側継手部材を軸方向に固定するようにすれば、軽量・
コンパクト化を阻害せずに、結合部の強度や耐久性に対
する信頼性が向上する。Further, according to a second aspect of the present invention, the end portion of the member disposed on the inner diameter side is plastically deformed outward in the radial direction to form a caulking portion, and the caulking portion causes the hub wheel to rotate. If the outer joint member is fixed in the axial direction,
Reliability of strength and durability of the joint is improved without hindering compactness.
【００１３】また、請求項３に記載の発明のように、前
記内径側に配設した部材の端部外周に環状溝を形成し、
この環状溝に止め輪を装着して前記外径側に配設した部
材に係合させれば、その装着有無を全数目視検査等で確
認することができ、簡単な構成で信頼性を高めることが
できる。According to the third aspect of the invention, an annular groove is formed on the outer circumference of the end of the member disposed on the inner diameter side,
If a retaining ring is attached to this annular groove and engaged with the member arranged on the outer diameter side, the presence or absence of the attachment can be confirmed by visual inspection or the like, and the reliability is improved with a simple configuration. be able to.
【００１４】また、請求項４に記載の発明は、前記外側
継手部材を中空とし、この外側継手部材を前記ハブ輪に
内嵌した構成を採用すれば、軽量・コンパクト化が達成
できると共に、組立作業性を向上させることができる。Further, in the invention according to claim 4, if the outer joint member is hollow and the outer joint member is fitted in the hub wheel, the weight and the size can be reduced and the assembly can be achieved. Workability can be improved.
【００１５】また、請求項５に記載の発明のように、前
記外側継手部材の端部にボルトまたはナットを締結して
前記ハブ輪に係合させた構成では、所望の締結力を定量
的に管理することができ、簡単な構成で信頼性を高める
ことができる。According to the invention of claim 5, in the structure in which a bolt or a nut is fastened to the end portion of the outer joint member to engage with the hub wheel, a desired fastening force can be quantitatively obtained. It can be managed, and reliability can be enhanced with a simple configuration.
【００１６】さらに、請求項６に記載の発明のように、
前記外側継手部材の端部内周に、この開口側に向けて漸
次拡径するテーパねじ部を形成し、このテーパねじ部に
ボルトを締結して前記ハブ輪に係合させた構成では、ハ
ブ輪と外側継手部材の軸方向の固定だけでなく、ねじ部
の締結力が一部径方向の分力に転換して、塑性結合部を
より一層強固にすることができる。Further, as in the invention described in claim 6,
In a configuration in which a taper screw portion whose diameter gradually increases toward the opening side is formed on the inner circumference of the end of the outer joint member, and a bolt is fastened to the taper screw portion and engaged with the hub wheel, In addition to fixing the outer joint member in the axial direction, the fastening force of the screw portion can be partially converted into a radial component force to further strengthen the plastic joint portion.
【００１７】また、請求項７に記載の発明のように、前
記外側継手部材の端部内周に、この開口側に向けて漸次
縮径するテーパ面を形成し、このテーパ面に衝合するテ
ーパ面を有するスリーブにボルトまたはナットを締結し
て前記ハブ輪に係合させた構成では、スリーブにより誘
起される径方向分力によって塑性結合部をより一層強固
にすることができる。Further, according to a seventh aspect of the present invention, a taper surface is formed on the inner circumference of the end of the outer joint member, the diameter of which gradually decreases toward the opening side, and the taper that abuts against the taper surface. In a configuration in which a bolt or a nut is fastened to a sleeve having a surface and engaged with the hub wheel, the radial coupling force induced by the sleeve can further strengthen the plastic joint.
【００１８】さらに、請求項８に記載の発明のように、
前記外側継手部材をカップ状のマウス部と、このマウス
部から軸方向に延びる軸部とで構成し、この軸部と前記
マウス部とを分離可能に締結すれば、ハブ輪と軸受部、
および外側継手部材とを補修点検時に分離することがで
き、作業性が向上するだけでなく、ユニットでの交換で
なく部品交換ができて経済的効果が大きい。Further, as in the invention described in claim 8,
The outer joint member is composed of a cup-shaped mouth portion and a shaft portion extending in the axial direction from the mouth portion, and if the shaft portion and the mouth portion are separably fastened, a hub wheel and a bearing portion,
The outer joint member and the outer joint member can be separated at the time of repair and inspection, so that not only the workability is improved, but also the parts can be replaced instead of the replacement by the unit, which has a large economic effect.
【００１９】[0019]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて詳細に説明する。図１は、本発明に係る駆動
車輪用軸受の第１の実施形態を示す縦断面図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a first embodiment of a drive wheel bearing according to the present invention.
【００２０】この駆動車輪用軸受装置は、ハブ輪１と、
複列の転がり軸受２と、等速自在継手３とをユニット化
して構成している。なお、以下の説明では、車両に組み
付けた状態で、車両の外側寄りとなる側をアウトボード
側、中央寄り側をインボード側という。This drive wheel bearing device includes a hub wheel 1,
The double-row rolling bearing 2 and the constant velocity universal joint 3 are unitized. In the following description, the side closer to the outside of the vehicle when assembled to the vehicle is referred to as the outboard side, and the side closer to the center is referred to as the inboard side.
【００２１】ハブ輪１は、アウトボード側の端部に車輪
（図示せず）を取り付けるための車輪取付フランジ４を
一体に有している。ハブ輪１の内周面には凹凸部５を形
成し、熱処理によって表面硬さを５４〜６４ＨＲＣの範
囲に硬化層１０を形成する（図中散点模様にて示す）。
熱処理としては、局部加熱ができ、硬化層深さの設定が
比較的容易にできる高周波誘導加熱による焼入れが好適
である。The hub wheel 1 integrally has a wheel mounting flange 4 for mounting a wheel (not shown) on the end portion on the outboard side. The uneven portion 5 is formed on the inner peripheral surface of the hub wheel 1, and the hardened layer 10 is formed by heat treatment so as to have a surface hardness of 54 to 64 HRC (indicated by a dotted pattern in the figure).
As the heat treatment, quenching by high-frequency induction heating, which can locally heat and relatively easily set the depth of the hardened layer, is suitable.
【００２２】なお、凹凸部５は、図２に示すような複数
列の溝を直交させた形状を例示することができる。
（ａ）は互いに傾斜した溝６で、（ｂ）は軸方向および
周方向の溝６’でアヤメローレット状を形成することが
できる。また、凹凸部５の凸部は良好な食い込み性を確
保するために、四角錐形状等の尖端形状に形成する。The uneven portion 5 can be exemplified by a shape in which a plurality of rows of grooves are orthogonal to each other as shown in FIG.
(A) is a groove 6 inclined with respect to each other, and (b) is a groove 6'in the axial direction and the circumferential direction, so that an iris knurling shape can be formed. Further, the convex portion of the concave-convex portion 5 is formed in a pointed shape such as a quadrangular pyramid shape in order to secure a good biting property.
【００２３】複列の転がり軸受２は、外方部材７と内方
部材８と複列の転動体９、９とからなり、外方部材７は
外周に車体（図示せず）に取り付けるための車体取付フ
ランジ７ａを一体に有し、内周には複列の外側転走面７
ｂ、７ｂを形成している。一方、内方部材８は、ハブ輪
１と後述する外側継手部材１４を指し、外方部材７の外
側転走面７ｂ、７ｂに対向するアウトボード側の内側転
走面１ａをハブ輪１の外周に、またインボード側の内側
転走面１４ａを外側継手部材１４の外周にそれぞれ形成
している。複列の転動体９、９をこれら転走面７ｂ、１
ａと７ｂ、１４ａ間にそれぞれ収容し、保持器１１、１
１で転動自在に保持している。複列の転がり軸受２の端
部にはシール１２、１３を装着し、軸受内部に封入した
潤滑グリースの漏洩と、外部からの雨水やダスト等の侵
入を防止している。ハブ輪１の外周において、シール１
２のシールリップが摺接するシールランド部、内側転走
面１ａ、および外側継手部材１４の肩部１６と先端が当
接するインロウ部１ｂの表面に高周波焼入れによって硬
化層１０’を形成している（図中散点模様にて示す）。
ここで複列の転がり軸受２は転動体９、９をボールとし
た複列アンギュラ玉軸受を例示したが、これに限らず転
動体に円すいころを使用した複列円すいころ軸受であっ
ても良い。The double row rolling bearing 2 comprises an outer member 7, an inner member 8 and double rows of rolling elements 9 and 9. The outer member 7 is mounted on the outer periphery of a vehicle body (not shown). It has a body mounting flange 7a integrally and has a double row of outer raceways 7 on the inner circumference.
b and 7b are formed. On the other hand, the inner member 8 refers to the hub wheel 1 and an outer joint member 14 to be described later, and the inner raceway surface 1a on the outboard side facing the outer raceway surfaces 7b and 7b of the outer member 7 is the hub wheel 1. The inner raceway surface 14 a on the inboard side is formed on the outer circumference and on the outer circumference of the outer joint member 14, respectively. The double-row rolling elements 9 and 9 are attached to these rolling surfaces 7b and 1b.
a and 7b, 14a, respectively, and retainers 11, 1
Holds at 1 for rolling freely. Seals 12 and 13 are attached to the ends of the double-row rolling bearing 2 to prevent leakage of lubricating grease sealed inside the bearing and invasion of rainwater or dust from the outside. On the outer periphery of the hub wheel 1, the seal 1
A hardened layer 10 'is formed by induction hardening on the surfaces of the seal land portion with which the seal lip 2 of FIG. 2 slides, the inner raceway surface 1a, and the inlay portion 1b with which the tip end contacts the shoulder 16 of the outer joint member 14. It is shown as a dotted pattern in the figure).
Here, the double row rolling bearing 2 is exemplified by a double row angular ball bearing in which the rolling elements 9 and 9 are balls, but the invention is not limited to this, and a double row tapered roller bearing in which tapered rollers are used for the rolling elements may be used. .
【００２４】等速自在継手３は外側継手部材１４と図示
しない継手内輪、ケージ、およびトルク伝達ボールとか
らなる。外側継手部材１４はカップ状のマウス部１５
と、このマウス部１５の底部をなす肩部１６と、この肩
部１６から軸方向に延びる軸部１７を有し、マウス部１
５の内周には軸方向に延びる曲線状のトラック溝１５ａ
を形成している。The constant velocity universal joint 3 comprises an outer joint member 14, a joint inner ring (not shown), a cage, and a torque transmitting ball. The outer joint member 14 is a cup-shaped mouth portion 15
And a shoulder portion 16 forming a bottom portion of the mouse portion 15 and a shaft portion 17 axially extending from the shoulder portion 16.
A curved track groove 15a extending in the axial direction is formed on the inner periphery of the groove 5.
Is formed.
【００２５】中空に形成した外側継手部材１４の肩部１
６外周には前記した転走面１４ａを形成している。ま
た、この軸部１７はハブ輪１のインロウ部１ｂを圧入す
る小径段部１７ａと、ハブ輪１と嵌合する嵌合部１７ｂ
を有している。小径段部１７ａに圧入したハブ輪１のイ
ンロウ部１ｂを肩部１６によって突合せ状態で、嵌合部
１７ｂをハブ輪１に内嵌すると共に、この嵌合部１７ｂ
の内径にマンドレルを挿入・抜脱させる等、嵌合部１７
ｂを適宜な手段で拡径してハブ輪１の凹凸部５に食い込
ませ、この嵌合部１７ｂを加締めてハブ輪１と外側継手
部材１４とを塑性結合させる。これにより、この結合部
はトルク伝達手段と、ハブ輪１と外側継手部材１４の結
合手段とを併せ持つため、従来のセレーション等のトル
ク伝達手段をハブ輪１や外側継手部材１４に形成する必
要はなく、装置の軽量・コンパクト化を実現することが
できる。Shoulder 1 of outer joint member 14 formed hollow
The rolling surface 14a is formed on the outer periphery of the roller 6. The shaft portion 17 has a small-diameter step portion 17a into which the inlay portion 1b of the hub wheel 1 is press-fitted, and a fitting portion 17b that fits into the hub wheel 1.
have. The fitting portion 17b is fitted into the hub wheel 1 while the inlay portion 1b of the hub wheel 1 press-fitted into the small-diameter step portion 17a is abutted by the shoulder portion 16, and the fitting portion 17b is also fitted.
Inserting / removing the mandrel into / from the inner diameter of the fitting part 17
The diameter of b is enlarged by an appropriate means to bite into the uneven portion 5 of the hub wheel 1, and the fitting portion 17b is caulked to plastically connect the hub wheel 1 and the outer joint member 14. As a result, this coupling portion has both torque transmitting means and coupling means for the hub wheel 1 and the outer joint member 14, so it is not necessary to form conventional torque transmitting means such as serrations on the hub wheel 1 and the outer joint member 14. In addition, the device can be made lighter and more compact.
【００２６】外側継手部材１４において、マウス部１５
の内周に形成したトラック溝１５ａとシール１３が摺接
するシールランド部から転走面１４ａ、および小径段部
１７ａに亙って表面硬化処理を施す。硬化処理として高
周波誘導加熱による焼入れが好適である。また、拡径す
る嵌合部１７ｂは、鍛造後の素材表面硬さ２４ＨＲＣ以
下の未焼入れ部とし、前記したハブ輪１の凹凸部５の表
面硬さ５４〜６４ＨＲＣとの硬度差を３０ＨＲＣ以上に
設定するのが好ましい。これにより、嵌合部１７ｂが凹
凸部５に容易に、かつ深く食い込み、凹凸部５の先端が
潰れることなく強固に両者を塑性結合することができ
る。In the outer joint member 14, the mouth portion 15
A surface hardening treatment is performed from the seal land portion where the track groove 15a formed on the inner circumference of the seal 13 and the seal 13 are in sliding contact to the rolling surface 14a and the small diameter step portion 17a. Quenching by high frequency induction heating is suitable as the hardening treatment. In addition, the diameter-increased fitting portion 17b is an unquenched portion having a material surface hardness of 24 HRC or less after forging, and the hardness difference between the surface hardness 54 to 64 HRC of the uneven portion 5 of the hub wheel 1 is 30 HRC or more. It is preferable to set. This allows the fitting portion 17b to easily and deeply dig into the concave-convex portion 5 and firmly bond the both without crushing the tip of the concave-convex portion 5.
【００２７】さらに、軸部１７の端部１７ｃを径方向外
方に塑性変形させて加締部１８を形成し、その先端部を
ハブ輪１に係合させて両者を軸方向に固定している。こ
の塑性加工は、端部１７ｃを径方向外方に拡径した後、
図示しない加締治具を端面に当接させた状態で揺動させ
ながら加圧して所望の加締形状に成形する、所謂揺動加
締によって形成することができる。Further, the end portion 17c of the shaft portion 17 is plastically deformed outward in the radial direction to form a caulking portion 18, and the tip portion thereof is engaged with the hub wheel 1 to fix them both in the axial direction. There is. In this plastic working, after the end portion 17c is expanded radially outward,
It can be formed by so-called swing caulking, in which a caulking jig (not shown) is pressed against the end face while being swung to form a desired caulking shape.
【００２８】こうした加締部１８によって、車両が旋回
した際、装置に大きなモーメント荷重が作用して結合部
に万一緩みが発生してもハブ輪１が脱落するのを防止で
きる。こうしたフェールセーフ機構を追加し、駆動車輪
用軸受装置としての信頼性を高めることができる。With the caulking portion 18, it is possible to prevent the hub wheel 1 from falling off when a large moment load acts on the device and the joint portion is loosened when the vehicle turns. By adding such a fail-safe mechanism, the reliability of the drive wheel bearing device can be improved.
【００２９】図示はしていないが、中空状の外側継手部
材１４の内径にエンドキャップを装着して、マウス部１
５に封入された潤滑グリースの外部への漏洩と外部から
のダスト侵入を防止している。Although not shown, an end cap is attached to the inner diameter of the hollow outer joint member 14, and the mouth portion 1
It prevents the lubricating grease enclosed in No. 5 from leaking out and dust from entering from the outside.
【００３０】図３は本発明に係る駆動車輪用軸受の第２
の実施形態を示す縦断面図である。前述した図１に示す
第１の実施形態と異なる点は、外側継手部材の軸部に形
成した加締部の構成のみで、その他同一部品同一部位に
は同じ符号を付してその詳細な説明を省略する。FIG. 3 is a second part of the bearing for drive wheels according to the present invention.
It is a longitudinal cross-sectional view showing an embodiment of. The difference from the above-described first embodiment shown in FIG. 1 is only the configuration of the caulking portion formed on the shaft portion of the outer joint member, and the same reference numerals are given to the same parts and other parts, and detailed description thereof will be given. Is omitted.
【００３１】この駆動車輪用軸受装置は、前述した第１
の実施形態と同様、外側継手部材１４に延設した軸部１
７の端部１７ｃを径方向外方に塑性変形させて加締部１
９を形成し、その先端部をハブ輪１に係合させて両者を
軸方向に固定する訳であるが、この塑性加工は、端部１
７ｃを周方向４ヶ所あるいは６ヶ所を図示しない加締治
具によって端面を打撃して塑性変形させる、所謂多点の
コイニングである。このコイニングは揺動加締よりも加
圧力が小さくてすみ、大型プレス機等の設備が不要とな
るばかりでなく、塑性加工時、ハブ輪１や軸部１７が変
形して精度が劣化するのを抑制することができる。This drive wheel bearing device has the above-mentioned first embodiment.
Similar to the above embodiment, the shaft portion 1 extended to the outer joint member 14
The end portion 17c of No. 7 is plastically deformed outward in the radial direction and the caulking portion 1
9 is formed, and the tip end thereof is engaged with the hub wheel 1 to axially fix the two.
7c is a so-called multi-point coining in which four or six circumferential positions are hit by an unillustrated crimping jig to plastically deform the end surface. This coining requires less pressure than swing caulking, which not only eliminates the need for equipment such as a large press machine, but also deforms the hub wheel 1 and the shaft portion 17 during plastic working, resulting in deterioration of accuracy. Can be suppressed.
【００３２】図４は本発明に係る駆動車輪用軸受の第３
の実施形態を示す縦断面図である。前述した図１に示す
第１の実施形態と異なる点は、ハブ輪と外側継手部材を
軸方向に固定する結合手段のみで、その他同一部品同一
部位には同じ符号を付してその詳細な説明を省略する。FIG. 4 shows a third embodiment of the drive wheel bearing according to the present invention.
It is a longitudinal cross-sectional view showing an embodiment of. The difference from the above-described first embodiment shown in FIG. 1 is only the coupling means for fixing the hub wheel and the outer joint member in the axial direction, and the other parts having the same parts are designated by the same reference numerals and their detailed description will be given. Is omitted.
【００３３】この駆動車輪用軸受装置は、外側継手部材
１４に延設した軸部１７の端部１７ｃ外周に環状溝２０
を形成し、この環状溝２０に止め輪２１を装着してハブ
輪１のアウトボード側端面に係合させている。したがっ
て、簡単な構成でハブ輪１と外側継手部材１４を軸方向
に固定することができると共に、この止め輪が所定位置
に装着しているか否かを全数目視検査等で確認すること
ができ、フェールセーフ機構として結合部の信頼性を高
めることができる。In this bearing device for driving wheels, the annular groove 20 is formed on the outer periphery of the end portion 17c of the shaft portion 17 extending to the outer joint member 14.
The annular groove 20 is provided with a retaining ring 21 which is engaged with the end face of the hub wheel 1 on the outboard side. Therefore, the hub ring 1 and the outer joint member 14 can be fixed in the axial direction with a simple structure, and it is possible to confirm by visual inspection or the like whether or not the retaining rings are mounted at predetermined positions. As a fail-safe mechanism, the reliability of the joint can be improved.
【００３４】図５は本発明に係る駆動車輪用軸受の第４
の実施形態を示す縦断面図である。前述した図１に示す
第１の実施形態と異なる点は、ハブ輪と外側継手部材を
軸方向に固定する結合手段のみで、その他同一部品同一
部位には同じ符号を付してその詳細な説明を省略する。FIG. 5 is a fourth view of the drive wheel bearing according to the present invention.
It is a longitudinal cross-sectional view showing an embodiment of. The difference from the above-described first embodiment shown in FIG. 1 is only the coupling means for fixing the hub wheel and the outer joint member in the axial direction, and the other parts having the same parts are designated by the same reference numerals and their detailed description will be given. Is omitted.
【００３５】この駆動車輪用軸受装置は、外側継手部材
１４に延設した軸部１７の端部１７ｅを拡径し、ハブ輪
１の凹凸部５に食い込ませて塑性結合した後、端部１７
ｅの内径にねじ部２２を形成する。このねじ部２２に固
定ボルト２３を締結し、ハブ輪１のアウトボード側端面
にこの固定ボルト２３の頭部を係合させる。したがっ
て、簡単な構成でハブ輪１と外側継手部材１４を軸方向
に固定することができると共に、所望の締結力を定量的
に管理することができ、信頼性を高めることができる。
なお、ボルト２３に限らず、端部１７ｅを延長してその
外周に雄ねじ部を形成し、この雄ねじ部にナットを締結
させても良い。In this drive wheel bearing device, the end portion 17e of the shaft portion 17 extending to the outer joint member 14 is expanded in diameter, bites into the uneven portion 5 of the hub wheel 1 to be plastically coupled, and then the end portion 17 is formed.
The threaded portion 22 is formed on the inner diameter of e. A fixing bolt 23 is fastened to the screw portion 22, and the head portion of the fixing bolt 23 is engaged with the end surface of the hub wheel 1 on the outboard side. Therefore, it is possible to fix the hub wheel 1 and the outer joint member 14 in the axial direction with a simple configuration, and it is possible to quantitatively manage a desired fastening force and improve reliability.
Not limited to the bolt 23, the end portion 17e may be extended to form a male screw portion on the outer periphery thereof, and a nut may be fastened to the male screw portion.
【００３６】図６は本発明に係る駆動車輪用軸受の第５
の実施形態を示す縦断面図である。前述した図５に示す
第４の実施形態と異なる点は、軸部の端部に形成したね
じ部の構成のみで、その他同一部品同一部位には同じ符
号を付してその詳細な説明を省略する。FIG. 6 shows a fifth embodiment of the bearing for a drive wheel according to the present invention.
It is a longitudinal cross-sectional view showing an embodiment of. The difference from the above-described fourth embodiment shown in FIG. 5 is only the configuration of the screw portion formed at the end of the shaft portion, the same parts as other parts are designated by the same reference numerals, and detailed description thereof will be omitted. To do.
【００３７】この駆動車輪用軸受装置は、外側継手部材
１４に延設した軸部１７の端部１７ｆを拡径し、ハブ輪
１の凹凸部５に食い込ませて塑性結合した後、端部１７
ｆの内径にテーパねじ部２４を形成する。このテーパね
じ部２４に固定ボルト２５を締結し、ハブ輪１のアウト
ボード側端面にこの固定ボルト２５の頭部を係合させ
る。このテーパねじ部２４は、開口側に向って漸次拡径
するテーパ状に形成しているため、固定ボルト２５を締
結することにより端部１７ｆが拡径し、嵌合部１７ｂに
おける結合力が強固となる。したがって塑性結合部の信
頼性を高めることができる。In this drive wheel bearing device, the end portion 17f of the shaft portion 17 extending to the outer joint member 14 is expanded in diameter, bites into the uneven portion 5 of the hub wheel 1 to be plastically connected, and then the end portion 17 is formed.
A taper screw portion 24 is formed on the inner diameter of f. A fixing bolt 25 is fastened to the taper screw portion 24, and the head portion of the fixing bolt 25 is engaged with the outboard side end surface of the hub wheel 1. Since the taper screw portion 24 is formed in a taper shape in which the diameter gradually increases toward the opening side, fastening the fixing bolt 25 expands the diameter of the end portion 17f, and the coupling force in the fitting portion 17b is strong. Becomes Therefore, the reliability of the plastic joint can be improved.
【００３８】図７は本発明に係る駆動車輪用軸受の第６
の実施形態を示す縦断面図である。前述した図５に示す
第４の実施形態と異なる点は、軸部の端部に形成したね
じ部の構成のみで、その他同一部品同一部位には同じ符
号を付してその詳細な説明を省略する。FIG. 7 shows a sixth embodiment of the bearing for a drive wheel according to the present invention.
It is a longitudinal cross-sectional view showing an embodiment of. The difference from the above-described fourth embodiment shown in FIG. 5 is only the configuration of the screw portion formed at the end of the shaft portion, the same parts as other parts are designated by the same reference numerals, and detailed description thereof will be omitted. To do.
【００３９】この駆動車輪用軸受装置は、外側継手部材
１４に延設した軸部１７の端部１７ｇを拡径し、ハブ輪
１の凹凸部５に食い込ませて塑性結合した後、端部１７
ｇの内径にテーパ面２６を形成する。このテーパ面２６
に衝合するテーパ面２７ａを外周に形成し、内周にねじ
部２７ｂを形成したスリーブ２７を介在させ、ねじ部２
７ｂに固定ボルト２３を締結する。このテーパ面２６
は、開口側に向って漸次縮径するように形成しているた
め、固定ボルト２３を締結することにより端部１７ｇが
拡径し、嵌合部１７ｂにおける結合力がより一層強固と
なると共に、ねじ部２７ｂの緊締力も同時に強固となっ
て固定ボルト２３が緩むのも抑制することができ、結合
部の信頼性を高めることができる。なお、固定ボルト２
３に限らず、スリーブ２７を延長させてその外周に雄ね
じ部を形成し、その雄ねじ部にナットを締結させても良
い。In this drive wheel bearing device, the end portion 17g of the shaft portion 17 extending to the outer joint member 14 is expanded in diameter and bites into the concave and convex portion 5 of the hub wheel 1 for plastic coupling, and then the end portion 17g.
A tapered surface 26 is formed on the inner diameter of g. This tapered surface 26
A taper surface 27a that abuts on the outer circumference, and a sleeve 27 having a thread portion 27b formed on the inner circumference is interposed,
The fixing bolt 23 is fastened to 7b. This tapered surface 26
Is formed so as to gradually reduce its diameter toward the opening side, the end portion 17g is expanded in diameter by fastening the fixing bolt 23, and the coupling force in the fitting portion 17b is further strengthened. The tightening force of the screw portion 27b is also strengthened at the same time, and the loosening of the fixing bolt 23 can be suppressed, so that the reliability of the joint portion can be improved. The fixing bolt 2
Not limited to 3, the sleeve 27 may be extended to form a male screw portion on the outer periphery thereof, and a nut may be fastened to the male screw portion.
【００４０】図８は本発明に係る駆動車輪用軸受の第７
の実施形態を示す縦断面図である。前述した図４に示す
第３の実施形態と異なる点は、外側継手部材の構成のみ
で、その他同一部品同一部位には同じ符号を付してその
詳細な説明を省略する。FIG. 8 shows a seventh embodiment of the bearing for a drive wheel according to the present invention.
It is a longitudinal cross-sectional view showing an embodiment of. The difference from the above-described third embodiment shown in FIG. 4 is only the configuration of the outer joint member, and the same parts and other parts are designated by the same reference numerals, and detailed description thereof will be omitted.
【００４１】外側継手部材１４’は、カップ状のマウス
部１５’と肩部１６’とが別体構造をなしている。マウ
ス部１５’の底部に周方向３ヶ所にフランジ１５ｂを形
成し、一方、肩部１６’の端面にも周方向３ヶ所にフラ
ンジ１６ａを形成している。フランジ１５ｂにはボルト
穴１５ｃを、また、フランジ１６ａには雌ねじ１６ｂを
それぞれ形成している。この雌ねじ１６ｂにボルト２８
を締結して、マウス部１５’と肩部１６’とを分離可能
に固定している。なお、フランジ１５ｂ、１６ａは周方
向３ヶ所の花形形状を例示したが、これはマウス部１
５’の内周に形成したトラック溝１５ａが６本の場合で
あって、トラック溝１５ａが８本の場合は４箇所の花形
形状が好ましい。The outer joint member 14 'has a cup-shaped mouth portion 15' and a shoulder portion 16 'which are separate structures. Flanges 15b are formed at three circumferential positions on the bottom of the mouth portion 15 ', while flanges 16a are also formed at three circumferential positions on the end surface of the shoulder 16'. Bolt holes 15c are formed in the flange 15b, and female threads 16b are formed in the flange 16a. This internal screw 16b has a bolt 28
The mouse portion 15 'and the shoulder portion 16' are separably fixed by fastening. The flanges 15b and 16a are illustrated as having a flower shape at three locations in the circumferential direction.
In the case where there are six track grooves 15a formed on the inner circumference of 5'and when there are eight track grooves 15a, it is preferable to have four flower-shaped shapes.
【００４２】この肩部１６’とマウス部１５’とを分離
可能に締結すれば、ハブ輪１と複列の転がり軸受２とか
らなるサブユニットと外側継手部材１４’のマウス部１
５’とを補修点検時に分離することができる。したがっ
て、補修点検の作業性が向上するだけでなく、ユニット
での交換でなく部品交換ができる。これは省資源化と共
に、部品交換に伴うユーザの費用負担が軽減でき経済的
効果が大きい。When the shoulder portion 16 'and the mouth portion 15' are separably fastened, the subunit including the hub wheel 1 and the double row rolling bearing 2 and the mouth portion 1 of the outer joint member 14 'are formed.
5'and can be separated at the time of repair inspection. Therefore, not only the workability of repair and inspection is improved, but also parts can be replaced instead of replacement in units. This not only saves resources, but also reduces the user's cost burden associated with parts replacement, which is highly economical.
【００４３】図９は本発明に係る駆動車輪用軸受の第８
の実施形態を示す縦断面図である。前述した実施形態は
全てハブ輪に外側継手部材を内嵌し、この外側継手部材
の軸部の端部を拡径してハブ輪の凹凸部に食い込ませ塑
性結合した構成であるが、この実施形態は、ハブ輪３０
に外側継手部材４０を外嵌している。FIG. 9 shows the eighth embodiment of the drive wheel bearing according to the present invention.
It is a longitudinal cross-sectional view showing an embodiment of. In all of the above-described embodiments, the outer joint member is internally fitted to the hub wheel, and the end portion of the shaft portion of the outer joint member is expanded in diameter to bite into the uneven portion of the hub wheel to be plastically coupled. The form is a hub wheel 30.
The outer joint member 40 is externally fitted to the outer joint member 40.
【００４４】ハブ輪３０は、アウトボード側端部に車輪
取付フランジ３１を有し、円筒部３２の外周にはアウト
ボード側の内側転走面３０ａ、および小径段部３３を形
成している。一方、等速自在継手４０の外側継手部材４
１は、カップ状のマウス部４２と、このマウス部４２の
底部をなす肩部４３とからなり、ハブ輪３０の小径段部
３３に外嵌している。肩部４３の外周にはインボード側
の内側転走面４１ａを形成し、ハブ輪３０に形成した内
側転走面３０ａとで複列の内側転走面４１ａ、３０ａを
構成する。すなわち、ハブ輪３０と外側継手部材４１と
で複列の転がり軸受２の内方部材８’を構成している。The hub wheel 30 has a wheel mounting flange 31 at the end portion on the outboard side, and an inner rolling surface 30a on the outboard side and a small diameter step portion 33 are formed on the outer periphery of the cylindrical portion 32. On the other hand, the outer joint member 4 of the constant velocity universal joint 40
Reference numeral 1 includes a cup-shaped mouth portion 42 and a shoulder portion 43 that forms the bottom portion of the mouth portion 42, and is fitted onto the small-diameter step portion 33 of the hub wheel 30. An inner rolling contact surface 41a on the inboard side is formed on the outer periphery of the shoulder portion 43, and the inner rolling contact surface 30a formed on the hub wheel 30 constitutes double row inner rolling contact surfaces 41a, 30a. That is, the hub wheel 30 and the outer joint member 41 constitute the inner member 8 ′ of the double-row rolling bearing 2.
【００４５】肩部４３の内径には凹凸部５’を形成し、
小径段部３３を適宜な手段で拡径して凹凸部５’に食い
込ませ、この小径段部３３を加締めてハブ輪３０と外側
継手部材４１とを塑性結合させる。ここで、４４はハブ
輪３０の円筒部３２に嵌合するインロウ部で、その端面
はハブ輪３０と突合せ状態になっている。An uneven portion 5'is formed on the inner diameter of the shoulder portion 43,
The small-diameter step portion 33 is expanded in diameter by an appropriate means to bite into the uneven portion 5 ′, and the small-diameter step portion 33 is caulked to plastically connect the hub wheel 30 and the outer joint member 41. Here, 44 is an inlay portion that fits into the cylindrical portion 32 of the hub wheel 30, and its end face is in a state of abutting with the hub wheel 30.
【００４６】さらに、ハブ輪３０に形成した小径段部３
３の先端部に止め輪２１を装着して肩部４３に係合さ
せ、ハブ輪３０と外側継手部材４１とを軸方向に固定し
ている。この構造の特徴は、前述したハブ輪と異なり、
内周面に硬化層を形成する必要はなく、ハブ輪３０の外
周面における所定部位に高周波焼入れによる表面硬化層
を形成するだけで良いため、コスト的に有利である。ま
た、外側継手部材４１は高周波焼入れに限らず、肌焼き
鋼を使用して全表面に硬化層を形成することもでき、材
料選択の自由度が高くなる。Further, the small diameter step portion 3 formed on the hub wheel 30.
The retaining ring 21 is attached to the tip end of 3 and is engaged with the shoulder portion 43 to fix the hub ring 30 and the outer joint member 41 in the axial direction. The features of this structure, unlike the hub wheel described above,
There is no need to form a hardened layer on the inner peripheral surface, and it is sufficient to form a surface hardened layer by induction hardening on a predetermined portion of the outer peripheral surface of the hub wheel 30, which is advantageous in terms of cost. Further, the outer joint member 41 is not limited to induction hardening, and a case hardened steel can be used to form a hardened layer on the entire surface, which increases the degree of freedom in material selection.
【００４７】以上、本発明の実施の形態について説明を
行ったが、本発明はこうした実施の形態に何等限定され
るものではなく、あくまで例示であって、本発明の要旨
を逸脱しない範囲内において、さらに種々なる形態で実
施し得ることは勿論のことであり、本発明の範囲は、特
許請求の範囲の記載によって示され、さらに特許請求の
範囲に記載の均等の意味、および範囲内のすべての変更
を含む。The embodiments of the present invention have been described above. However, the present invention is not limited to the embodiments and is merely an example, and does not depart from the scope of the present invention. Of course, the present invention can be implemented in various forms, and the scope of the present invention is shown by the description of the scope of claims, and the equivalent meanings described in the scope of claims and all within the scope Including changes.
【００４８】[0048]
【発明の効果】以上詳述したように、本発明に係る駆動
車輪用軸受装置は、ハブ輪と複列の転がり軸受と等速自
在継手をユニット化した駆動車輪用軸受装置において、
塑性結合によりハブ輪と外側継手部材とを一体化したの
で、軽量・コンパクト化といった所期の技術課題を解決
し、結合部の緩みや摩耗を防止することができる。これ
に加え、さらに両部材を軸方向に固定する結合手段を別
途追加したため、結合部の不具合がハブ輪の脱落に直結
しないフェールセーフ機能を有し、結合部の強度や耐久
性に対する信頼性が格段に向上する。As described in detail above, the drive wheel bearing device according to the present invention is a drive wheel bearing device in which a hub wheel, a double row rolling bearing, and a constant velocity universal joint are unitized.
Since the hub wheel and the outer joint member are integrated by plastic coupling, it is possible to solve the intended technical problem of weight reduction and compactness and prevent looseness and wear of the joint. In addition to this, since a connecting means for fixing both members in the axial direction is added separately, it has a fail-safe function that does not directly connect the failure of the connecting part to the fall of the hub ring, and the reliability of the strength and durability of the connecting part is improved. Greatly improved.
【図１】本発明に係る駆動車輪用軸受装置の第１の実施
形態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a first embodiment of a drive wheel bearing device according to the present invention.
【図２】本発明に係るハブ輪の凹凸部形状を説明する縦
断面図である。FIG. 2 is a vertical cross-sectional view illustrating the shape of the uneven portion of the hub wheel according to the present invention.
【図３】本発明に係る駆動車輪用軸受装置の第２の実施
形態を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing a second embodiment of the drive wheel bearing device according to the present invention.
【図４】本発明に係る駆動車輪用軸受装置の第３の実施
形態を示す縦断面図である。FIG. 4 is a longitudinal sectional view showing a third embodiment of the drive wheel bearing device according to the present invention.
【図５】本発明に係る駆動車輪用軸受装置の第４の実施
形態を示す縦断面図である。FIG. 5 is a longitudinal sectional view showing a fourth embodiment of the drive wheel bearing device according to the present invention.
【図６】本発明に係る駆動車輪用軸受装置の第５の実施
形態を示す縦断面図である。FIG. 6 is a vertical sectional view showing a fifth embodiment of the drive wheel bearing device according to the present invention.
【図７】本発明に係る駆動車輪用軸受装置の第６の実施
形態を示す縦断面図である。FIG. 7 is a vertical sectional view showing a sixth embodiment of the drive wheel bearing device according to the present invention.
【図８】本発明に係る駆動車輪用軸受装置の第７の実施
形態を示す縦断面図である。FIG. 8 is a longitudinal sectional view showing a seventh embodiment of the drive wheel bearing device according to the present invention.
【図９】本発明に係る駆動車輪用軸受装置の第８の実施
形態を示す縦断面図である。FIG. 9 is a vertical cross-sectional view showing an eighth embodiment of a drive wheel bearing device according to the present invention.
【図１０】従来の駆動車輪用軸受装置を示す縦断面図で
ある。FIG. 10 is a vertical cross-sectional view showing a conventional drive wheel bearing device.
１、３０・・・・ハブ輪 １ａ、３０ａ・・内側転走面 ２・・・・・・・複列の転がり軸受 ３、４０・・・・等速自在継手 ４、３１・・・・車輪取付フランジ ５、５’・・・・凹凸部 ６、６’・・・・溝 ７・・・・・・・外方部材 ７ａ・・・・・・車体取付フランジ ７ｂ・・・・・・外側転走面 ８、８’・・・・内方部材 ９・・・・・・・転動体 １０、１０’・・硬化層 １１・・・・・・保持器 １２・・・・・・シール １３・・・・・・シール １４、１４’・・外側継手部材 １４ａ、４１ａ・内側転走面 １５、１５’・・マウス部 １５ａ・・・・・トラック溝 １５ｂ・・・・・フランジ １５ｃ・・・・・ボルト穴 １６、１６’・・肩部 １６ａ・・・・・フランジ １６ｂ・・・・・雌ねじ １７・・・・・・軸部 １７ａ・・・・・小径段部 １７ｂ・・・・・嵌合部 １７ｃ・・・・・端部 １７ｄ・・・・・端部 １７ｅ・・・・・端部 １７ｆ・・・・・端部 １７ｇ・・・・・端部 １８、１９・・・加締部 ２０・・・・・・環状溝 ２１・・・・・・止め輪 ２２・・・・・・ねじ部 ２３、２５・・・固定ボルト ２４・・・・・・テーパねじ部 ２６・・・・・・テーパ面 ２７・・・・・・スリーブ ２７ａ・・・・・テーパ面 ２８・・・・・・ボルト ３０・・・・・・ハブ輪 ３２・・・・・・円筒部 ３３・・・・・・小径段部 ４１・・・・・・外側継手部材 ４２・・・・・・マウス部 ４２ａ・・・・・トラック溝 ４３・・・・・・肩部 ５０・・・・・・ハブ輪 ５０ａ・・・・・転走面 ５１・・・・・・車輪取付フランジ ５２・・・・・・ハブボルト ５３・・・・・・凹凸部 ６０・・・・・・軸受部 ６１・・・・・・外方部材 ６１ａ・・・・・転走面 ６２・・・・・・内方部材 ６３・・・・・・転動体 ６４・・・・・・車体取付フランジ ６５・・・・・・保持器 ６６・・・・・・シール ６７・・・・・・シール ７０・・・・・・等速自在継手 ７１・・・・・・外側継手部材 ７１ａ・・・・・転走面 ７２・・・・・・マウス部 ７２ａ・・・・・トラック溝 ７３・・・・・・軸部 1, 30 ... Hub wheel 1a, 30a ... Inner rolling surface 2 ･ ･ ･ Double row rolling bearing 3, 40 .... Constant velocity universal joint 4, 31 ... ・ Wheel mounting flange 5, 5 '... 6, 6 '... Groove 7 ... Outer member 7a ... ・ Vehicle mounting flange 7b ... Outside rolling surface 8, 8 '... Inner member 9 ... Rolling elements 10, 10 '... cured layer 11 ... Cage 12 ... Seal 13 ... Seal 14, 14 '... Outer joint member 14a, 41a / Inner rolling surface 15, 15 '... Mouse part 15a: track groove 15b ... Flange 15c ... Bolt hole 16, 16 '... shoulders 16a ... flange 16b ... Female thread 17 ... ・ Shaft 17a ... Small diameter step 17b ... Mating part 17c ... End 17d ... end 17e ... End 17f ... End 17g ... end 18, 19 ... Crimping part 20 ... · Annular groove 21 ··· Retaining ring 22 ... ・ Screw part 23, 25 ... Fixing bolt 24 .... Tapered screw part 26 ... ・ Tapered surface 27 ... ・ Sleeve 27a ... tapered surface 28 ... Bolt 30 ... Hub wheel 32 ··· Cylindrical part 33 ・ ・ ・ ・ ・ ・ Small diameter step 41 ··· Outer joint member 42 ... ・ Mouse part 42a: track groove 43 ... ・ Shoulder 50 ... Hub wheel 50a ... Rolling surface 51 ・ ・ ・ ・ ・ ・ Wheel mounting flange 52 ... Hub bolt 53 ... 60 ・ ・ ・ ・ ・ ・ Bearing part 61 ··· Outer member 61a: Rolling surface 62 ・ ・ ・ ・ ・ ・ Inner member 63 .... Rolling elements 64 ··· Body mounting flange 65 ・ ・ ・ ・ Cage 66 ... Seal 67 ... Seal 70 ・ ・ ・ ・ ・ ・ Universal velocity universal joint 71 ··· Outer joint member 71a ... Rolling surface 72 ... ・ Mouse part 72a ... track groove 73 ・ ・ ・ ・ ・ ・ Shaft
フロントページの続き (72)発明者 田窪 孝康 静岡県磐田市東貝塚1578番地 エヌティエ ヌ株式会社内Continued front page (72) Inventor Takayasu Takubo Entier, 1578 Higashi-Kaizuka, Iwata City, Shizuoka Prefecture Nu Co., Ltd.
Claims (8)
とをユニット化し、前記ハブ輪と前記等速自在継手の外
側継手部材とを嵌合させ、前記複列の転がり軸受におけ
る内側転走面のうち一方を前記ハブ輪に形成すると共
に、他方を外側継手部材に形成した駆動車輪用軸受装置
において、 前記ハブ輪と前記外側継手部材の嵌合部で、外径側に配
設した部材に硬化させた凹凸部を形成すると共に、この
凹凸部に、内径側に配設した部材を拡径させて食い込ま
せることにより、前記ハブ輪と前記外側継手部材とを一
体化し、さらに、両部材を軸方向に固定する結合手段を
設けたことを特徴とする駆動車輪用軸受装置。1. A hub wheel, a constant velocity universal joint, and a double row rolling bearing are unitized, and the hub wheel and an outer joint member of the constant velocity universal joint are fitted to each other, and an inner side of the double row rolling bearing is formed. In a drive wheel bearing device in which one of the rolling surfaces is formed in the hub wheel and the other is formed in an outer joint member, the fitting portion of the hub wheel and the outer joint member is disposed on the outer diameter side. While forming a cured uneven portion on the member, the uneven portion, by expanding the diameter of the member disposed on the inner diameter side to bite, the hub wheel and the outer joint member are integrated, further, A bearing device for a drive wheel, characterized in that a coupling means for fixing both members in an axial direction is provided.
外方に塑性変形させて加締部とし、この加締部により前
記ハブ輪と前記外側継手部材を軸方向に固定した請求項
１に記載の駆動車輪用軸受装置。2. An end portion of a member arranged on the inner diameter side is plastically deformed radially outward to form a caulking portion, and the caulking portion axially fixes the hub wheel and the outer joint member. The bearing device for a drive wheel according to claim 1.
状溝を形成し、この環状溝に止め輪を装着して前記外径
側に配設した部材に係合させた請求項１に記載の駆動車
輪用軸受装置。3. An annular groove is formed on the outer periphery of the end of the member disposed on the inner diameter side, and a retaining ring is attached to the annular groove to engage with the member disposed on the outer diameter side. The bearing device for a drive wheel according to 1.
手部材を前記ハブ輪に内嵌した請求項１乃至３いずれか
に記載の駆動車輪用軸受装置。4. The drive wheel bearing device according to claim 1, wherein the outer joint member is hollow, and the outer joint member is internally fitted to the hub wheel.
ットを締結して前記ハブ輪に係合させた請求項４に記載
の駆動車輪用軸受装置。5. The drive wheel bearing device according to claim 4, wherein a bolt or a nut is fastened to an end portion of the outer joint member to engage with the hub wheel.
側に向けて漸次拡径するテーパねじ部を形成し、このテ
ーパねじ部にボルトを締結して前記ハブ輪に係合させた
請求項４または５に記載の駆動車輪用軸受装置。6. A taper thread portion gradually increasing in diameter toward the opening side is formed on an inner circumference of an end portion of the outer joint member, and a bolt is fastened to the taper thread portion to engage with the hub wheel. The bearing device for a drive wheel according to claim 4 or 5.
側に向けて漸次縮径するテーパ面を形成し、このテーパ
面に衝合するテーパ面を有するスリーブにボルトまたは
ナットを締結して前記ハブ輪に係合させた請求項４また
は５に記載の駆動車輪用軸受装置。7. A taper surface that gradually reduces in diameter toward the opening side is formed on the inner circumference of the end of the outer joint member, and a bolt or nut is fastened to a sleeve having a taper surface that abuts against this taper surface. 6. The drive wheel bearing device according to claim 4, wherein the drive wheel bearing device is engaged with the hub wheel.
と、このマウス部から軸方向に延びる軸部とで構成し、
この軸部と前記マウス部とを分離可能に締結した請求項
１乃至７いずれかに記載の駆動車輪用軸受装置。8. The outer joint member comprises a cup-shaped mouth portion and a shaft portion extending axially from the mouth portion,
The bearing device for a drive wheel according to claim 1, wherein the shaft portion and the mouth portion are detachably fastened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001282647A JP2003089301A (en) | 2001-09-18 | 2001-09-18 | Bearing device for driving wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001282647A JP2003089301A (en) | 2001-09-18 | 2001-09-18 | Bearing device for driving wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003089301A true JP2003089301A (en) | 2003-03-25 |
Family
ID=19106271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001282647A Pending JP2003089301A (en) | 2001-09-18 | 2001-09-18 | Bearing device for driving wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003089301A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1398181A2 (en) | 2002-09-10 | 2004-03-17 | Ntn Corporation | Bearing apparatus for a wheel of a vehicle |
| JP2007139039A (en) * | 2005-11-17 | 2007-06-07 | Ntn Corp | Wheel bearing device |
| US8480306B2 (en) | 2006-06-14 | 2013-07-09 | Ntn Corporation | Bearing unit for driving wheels |
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|---|---|---|---|---|
| JPS57158103A (en) * | 1981-02-27 | 1982-09-29 | Riv Officine Di Villar Perosa | Supporter for driving wheel of car |
| JPS6045103U (en) * | 1983-09-01 | 1985-03-29 | エヌティエヌ株式会社 | Bearing device for rear drive wheels of automobiles |
| JPS63110001A (en) * | 1986-10-27 | 1988-05-14 | Ntn Toyo Bearing Co Ltd | Bearing unit for drive wheel of automobile |
| JPH1178408A (en) * | 1997-05-09 | 1999-03-23 | Nippon Seiko Kk | Roller bearing unit for wheel |
| JP2001018605A (en) * | 1999-07-06 | 2001-01-23 | Ntn Corp | Bearing device for driving wheel |
| JP2001246906A (en) * | 2000-03-03 | 2001-09-11 | Nsk Ltd | Bearing unit for driving wheel |
| JP2002087011A (en) * | 2000-09-18 | 2002-03-26 | Koyo Seiko Co Ltd | Bearing device for vehicle |
-
2001
- 2001-09-18 JP JP2001282647A patent/JP2003089301A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57158103A (en) * | 1981-02-27 | 1982-09-29 | Riv Officine Di Villar Perosa | Supporter for driving wheel of car |
| JPS6045103U (en) * | 1983-09-01 | 1985-03-29 | エヌティエヌ株式会社 | Bearing device for rear drive wheels of automobiles |
| JPS63110001A (en) * | 1986-10-27 | 1988-05-14 | Ntn Toyo Bearing Co Ltd | Bearing unit for drive wheel of automobile |
| JPH1178408A (en) * | 1997-05-09 | 1999-03-23 | Nippon Seiko Kk | Roller bearing unit for wheel |
| JP2001018605A (en) * | 1999-07-06 | 2001-01-23 | Ntn Corp | Bearing device for driving wheel |
| JP2001246906A (en) * | 2000-03-03 | 2001-09-11 | Nsk Ltd | Bearing unit for driving wheel |
| JP2002087011A (en) * | 2000-09-18 | 2002-03-26 | Koyo Seiko Co Ltd | Bearing device for vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1398181A2 (en) | 2002-09-10 | 2004-03-17 | Ntn Corporation | Bearing apparatus for a wheel of a vehicle |
| US7220183B2 (en) | 2002-09-10 | 2007-05-22 | Ntn Corporation | Bearing apparatus for a wheel of vehicle |
| JP2007139039A (en) * | 2005-11-17 | 2007-06-07 | Ntn Corp | Wheel bearing device |
| US8480306B2 (en) | 2006-06-14 | 2013-07-09 | Ntn Corporation | Bearing unit for driving wheels |
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