JP2009083814A - Wheel support apparatus - Google Patents

Wheel support apparatus Download PDF

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JP2009083814A
JP2009083814A JP2007259694A JP2007259694A JP2009083814A JP 2009083814 A JP2009083814 A JP 2009083814A JP 2007259694 A JP2007259694 A JP 2007259694A JP 2007259694 A JP2007259694 A JP 2007259694A JP 2009083814 A JP2009083814 A JP 2009083814A
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hub
constant velocity
velocity joint
wheel
outer ring
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JP5292758B2 (en
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Takeshi Kamikawa
剛 上川
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JTEKT Corp
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JTEKT Corp
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Priority to JP2007259694A priority Critical patent/JP5292758B2/en
Application filed by JTEKT Corp filed Critical JTEKT Corp
Priority to DE602008002670T priority patent/DE602008002670D1/en
Priority to US12/285,361 priority patent/US8025579B2/en
Priority to EP08017406A priority patent/EP2045100B1/en
Priority to EP10007921A priority patent/EP2241454B1/en
Priority to EP12000190.4A priority patent/EP2441594B1/en
Publication of JP2009083814A publication Critical patent/JP2009083814A/en
Priority to US13/137,248 priority patent/US8353775B2/en
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Publication of JP5292758B2 publication Critical patent/JP5292758B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheel support apparatus capable of excellently draining muddy water entered inside from a meshing clearance of both-side face splines on an end surface of a hub shaft of a hub wheel and an end surface of a sidewall part of a constant velocity joint by the action of centrifugal force. <P>SOLUTION: The hub shaft 13 of the hub wheel 10 attached with a wheel and an outer ring 60 of the constant velocity joint 50 are connected in a torque-transmitting manner. The both-side face splines 18 and 80 for connecting the hub shaft 13 of the hub wheel 10 and the outer ring 60 of the constant velocity joint 50 in the torque-transmitting manner by meshing with each other, are formed on the end surface of the hub shaft 13 and the end surface of the sidewall part 61 of the outer ring 60 of the constant velocity joint 50 butted against this end surface. Among a large number of respective tooth parts 18a and 80a constituting the both-side face splines 18 and 80, at least one tooth part is removed, and a drainage channel 83 is constituted in this removed part 82. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

この発明は、車輪が取り付けられるハブホイールのハブ軸と等速ジョイントの外輪とがトルク伝達可能に連結された車輪支持装置に関する。   The present invention relates to a wheel support device in which a hub shaft of a hub wheel to which a wheel is attached and an outer ring of a constant velocity joint are connected so as to be able to transmit torque.

この種の車輪支持装置においては、ハブホイールのハブ軸と等速ジョイントの外輪とが連結ボルトによって連結されると共に、ハブホイールのハブ軸の端面と、この端面に突き合わされる等速ジョイントの側壁部の端面に、相互に噛み合う両サイドフェーススプラインが形成され、これら両サイドフェーススプラインによってハブホイールと等速ジョイントとをトルク伝達可能に接続したものが知られている（例えば、特許文献１参照）。
特開昭６３−１８４５０１号公報 In this type of wheel support device, the hub axle of the hub wheel and the outer ring of the constant velocity joint are connected by a connecting bolt, and the end face of the hub axle of the hub wheel and the side wall of the constant velocity joint abutted against this end face Both side face splines that mesh with each other are formed on the end face of the portion, and a hub wheel and a constant velocity joint are connected by these both side face splines so as to be able to transmit torque (see, for example, Patent Document 1). .
Japanese Unexamined Patent Publication No. 63-184501

ところで、前記したように、ハブホイールのハブ軸の端面と、等速ジョイントの側壁部の端面の両サイドフェーススプラインを噛み合わせてハブホイールと等速ジョイントとをトルク伝達可能に接続すると、車輪が跳ね上げる泥水等が両サイドフェーススプラインの噛み合いの隙間から内部に不測に侵入し、内部を発錆させる恐れがある。   By the way, as described above, when the hub wheel end face of the hub wheel and both side face splines of the end face of the side wall portion of the constant velocity joint are meshed to connect the hub wheel and the constant velocity joint so that torque can be transmitted, the wheel is There is a risk of splashing muddy water, etc., intruding into the inside through the gap between the meshes of the two side face splines, causing rusting inside.

この発明の目的は、前記問題点に鑑み、ハブホイールのハブ軸の端面と、等速ジョイントの側壁部の端面の両サイドフェーススプラインの噛み合いの隙間から内部に侵入した泥水等を遠心力の作用によって良好に排水することができる車輪支持装置を提供することである。   In view of the above problems, the object of the present invention is to apply centrifugal force to muddy water that has entered the interior through the gap between the engagement of both side face splines of the end surface of the hub shaft of the hub wheel and the end surface of the side wall portion of the constant velocity joint. It is to provide a wheel support device that can drain well.

前記目的を達成するために、この発明の請求項１に係る車輪支持装置は、車輪が取り付けられるハブホイールのハブ軸と、等速ジョイントの外輪とがトルク伝達可能に連結された車輪支持装置であって、
前記ハブ軸の端面と、この端面に突き合わされる前記等速ジョイントの外輪の側壁部端面には、相互に噛み合うことで前記ハブホイールのハブ軸と前記等速ジョイントの外輪とをトルク伝達可能に接続する両サイドフェーススプラインが形成され、
前記両サイドフェーススプラインを構成する各多数個の歯部のうち、少なくとも一つの歯部が除去され、この除去部に排水路が構成されていることを特徴とする。 In order to achieve the above object, a wheel support device according to claim 1 of the present invention is a wheel support device in which a hub shaft of a hub wheel to which a wheel is attached and an outer ring of a constant velocity joint are connected so as to be able to transmit torque. There,
The hub shaft of the hub wheel and the outer ring of the constant velocity joint can be transmitted with torque by meshing with the end surface of the hub shaft and the end surface of the outer ring of the constant velocity joint that is abutted against the end surface. Both side face splines to be connected are formed,
At least one tooth portion is removed from each of a plurality of tooth portions constituting the both side face splines, and a drainage channel is formed in the removal portion.

前記構成によると、車両走行時（トルク伝達時）には、等速ジョイントの外輪のトルクが、同外輪の側壁部の端面とハブホイールのハブ軸の端面との両サイドフェーススプラインを介してハブ軸に伝達され、ハブホイールと共に車輪が回転される。
車両走行時において、車輪が跳ね上げる泥水等が両サイドフェーススプラインの噛み合いの隙間から内部に侵入した場合、侵入した泥水等は、遠心力の作用によって外径側へ向けて流れ、サイドフェーススプラインの歯部の除去部によって構成された排水路から外部へ排水される。
前記したように、両サイドフェーススプラインの噛み合いの隙間から内部に侵入した泥水等を排水路から外部に良好に排水することができるため、発錆を防止することができる。 According to the above configuration, when the vehicle travels (when torque is transmitted), the torque of the outer ring of the constant velocity joint is transmitted to the hub via both side face splines of the end face of the side wall portion of the outer ring and the end face of the hub axle of the hub wheel. The wheel is transmitted along with the hub wheel.
When muddy water, etc. that the wheels bounce up when entering the vehicle through the gap between the meshes of both side face splines, the muddy water that has entered flows toward the outer diameter side due to the centrifugal force, and the side face spline It drains to the outside from the drainage channel constituted by the tooth removal part.
As described above, since muddy water or the like entering the inside through the gap between the meshes of both side face splines can be drained well from the drainage channel to the outside, rusting can be prevented.

請求項２に係る車輪支持装置は、請求項１に記載の車輪支持装置であって、
ハブホイールのハブ軸には、同ハブ軸と、等速ジョイントの外輪とを連結する連結ボルトが挿通される内孔が形成され、
前記ハブ軸の内孔は、サイドフェーススプライン側に位置する一端側が大径で他端側に向けてしだいに小径に形成されたテーパ孔をなしていることを特徴とする。
前記構成によると、両サイドフェーススプラインの噛み合いの隙間からハブ軸の内孔の一端側に侵入した泥水等が同内孔の他端側（サイドフェーススプライン側と反対側）へ向けて流れることを抑制することができ、排水性の向上を図ることができる。 A wheel support device according to claim 2 is the wheel support device according to claim 1,
The hub axle of the hub wheel is formed with an inner hole through which a connecting bolt that connects the hub axle and the outer ring of the constant velocity joint is inserted.
The inner hole of the hub shaft is a tapered hole having a large diameter at one end located on the side face spline side and a gradually smaller diameter toward the other end.
According to the above configuration, muddy water or the like that has entered the one end side of the inner hole of the hub shaft from the meshing gap between both side face splines flows toward the other end side (the side opposite to the side face spline side) of the inner hole. It can suppress and can improve drainage.

次に、この発明を実施するための最良の形態を実施例にしたがって説明する。   Next, the best mode for carrying out the present invention will be described with reference to examples.

（実施例１）
この発明の実施例１を図１と図２にしたがって説明する。
図１はこの発明の実施例１に係る車輪支持装置を示す側断面図である。図２はハブ軸の端面と等速ジョイントの外輪の側壁部の端面の両サイドフェーススプラインの噛み合い状態を示す展開図である。
図１に示すように、この実施例１の車輪支持装置は、ハブホイール１０と、転がり軸受としての複列のアンギュラ玉軸受２０と、等速ジョイント５０とを備えて構成されている。 Example 1
A first embodiment of the present invention will be described with reference to FIGS.
1 is a side sectional view showing a wheel support device according to Embodiment 1 of the present invention. FIG. 2 is a development view showing a state in which both side face splines are engaged with each other on the end surface of the hub shaft and the end surface of the side wall portion of the outer ring of the constant velocity joint.
As shown in FIG. 1, the wheel support device according to the first embodiment includes a hub wheel 10, a double row angular ball bearing 20 as a rolling bearing, and a constant velocity joint 50.

図１に示すように、ハブホイール１０は、円筒状をなすハブ軸１３と、ハブ軸１３の一端部寄り外周面に形成されたフランジ１１とを一体に有している。そして、フランジ１１には、ブレーキロータ（図示しない）を間に挟んで車輪（図示しない）を取り付けるための複数本のハブボルト１２が所定ピッチでかつ圧入によって固定されている。
ハブ軸１３の外周には、外輪３０、内輪２１、転動体としての複数の玉４１、４２及び保持器４５、４６を備えた複列のアンギュラ玉軸受２０が組み付けられている。 As shown in FIG. 1, the hub wheel 10 integrally includes a cylindrical hub shaft 13 and a flange 11 formed on the outer peripheral surface near one end of the hub shaft 13. A plurality of hub bolts 12 for attaching a wheel (not shown) with a brake rotor (not shown) interposed therebetween are fixed to the flange 11 at a predetermined pitch and press-fitted.
A double-row angular ball bearing 20 including an outer ring 30, an inner ring 21, a plurality of balls 41 and 42 as rolling elements and cages 45 and 46 is assembled to the outer periphery of the hub shaft 13.

すなわち、この実施例１において、ハブ軸１３はフランジ１１側に形成された大径軸部１５と、大径軸部１５よりも適宜に小径でかつ大径軸部１５と段差部をもって連続して形成された小径軸部１６とを一体に有している。そして、大径軸部１５の外周面に、外輪３０の一方の軌道面３１に対応する軌道面２２が形成されている。
さらに、外輪３０の他方の軌道面３２に対応する軌道面２３が外周面に形成された内輪２１がハブ軸１３の小径軸部１６の外周面に嵌込まれた後、小径軸部１６の先端部がかしめられてかしめ部１７が形成されることによって、内輪２１が段差部とかしめ部１７との間に固定されている。
また、外輪３０の両軌道面３１、３２と、ハブ軸１３側の両軌道面２２、２３との間には各複多数個の玉４１、４２と、これら各複多数個の玉４１、４２をそれぞれ保持する保持器４５、４６が組み付けられる。
また、外輪３０の外周面には、車両の懸架装置（図示しない）に支持された車体側部材（ナックル、又はキャリア）にボルトによって取り付けるための固定フランジ３５が一体に形成されている。 That is, in the first embodiment, the hub shaft 13 has a large-diameter shaft portion 15 formed on the flange 11 side, and has a suitably smaller diameter than the large-diameter shaft portion 15 and continuously with the large-diameter shaft portion 15 and a stepped portion. The formed small diameter shaft portion 16 is integrally provided. A track surface 22 corresponding to one track surface 31 of the outer ring 30 is formed on the outer peripheral surface of the large-diameter shaft portion 15.
Further, after the inner ring 21 in which the raceway surface 23 corresponding to the other raceway surface 32 of the outer ring 30 is formed on the outer peripheral surface is fitted into the outer peripheral surface of the small-diameter shaft portion 16 of the hub shaft 13, the tip of the small-diameter shaft portion 16. The inner ring 21 is fixed between the stepped portion and the caulking portion 17 by caulking the portion to form the caulking portion 17.
Further, a plurality of balls 41, 42 and a plurality of balls 41, 42 are provided between the raceways 31, 32 of the outer ring 30 and the raceways 22, 23 on the hub shaft 13 side. Are respectively assembled.
In addition, a fixing flange 35 is integrally formed on the outer peripheral surface of the outer ring 30 to be attached to a vehicle body side member (knuckle or carrier) supported by a vehicle suspension device (not shown) with a bolt.

図１に示すように、等速ジョイント５０は、周知のツェッパー型、バーフィールド型と呼ばれている等速ジョイントが使用されており、駆動軸５１の一端に一体状に連結された内輪５２と、外輪６０と、これら内・外輪５２、６０の間に配設された複数のボール５３と、これら複数のボール５３を保持する保持器５４を備えて構成されている。
また、等速ジョイント５０の外輪６０の側壁部６１の中心部にはハブホイール１０と等速ジョイント５０とを一体状に連結するための連結ボルト７０が突出されている。 As shown in FIG. 1, the constant velocity joint 50 uses a constant velocity joint called a well-known Zepper type or Barfield type, and includes an inner ring 52 integrally connected to one end of a drive shaft 51. The outer ring 60 includes a plurality of balls 53 disposed between the inner and outer rings 52, 60, and a cage 54 that holds the plurality of balls 53.
Further, a connecting bolt 70 for connecting the hub wheel 10 and the constant velocity joint 50 integrally is projected at the center of the side wall 61 of the outer ring 60 of the constant velocity joint 50.

この実施例１において、連結ボルト７０は、等速ジョイント５０の外輪６０と別体をなす頭部７１と軸部７２とを有する一方、等速ジョイント５０の外輪６０の側壁部６１の中心部には貫通孔６３が貫設されている。
そして、等速ジョイント５０の外輪６０の貫通孔６３の内側開口部から連結ボルト７０の軸部７２が嵌挿され、頭部７１の下面が側壁部６１の内面に当接する位置まで軸部７２の根本部の大径部７２ａが圧入されることによって、等速ジョイント５０の外輪６０の側壁部６１から連結ボルト７０の軸部７２が突出されて固定される。連結ボルト７０の軸部７２の先端部には雄ねじ部７３が形成され、この雄ねじ部７３には締付ナット７５を回り止めするためのかしめ溝７４が凹設されている。 In the first embodiment, the connecting bolt 70 has a head portion 71 and a shaft portion 72 that are separate from the outer ring 60 of the constant velocity joint 50, and is provided at the center of the side wall portion 61 of the outer ring 60 of the constant velocity joint 50. Has a through hole 63.
Then, the shaft portion 72 of the connecting bolt 70 is fitted and inserted from the inner opening portion of the through hole 63 of the outer ring 60 of the constant velocity joint 50, and the shaft portion 72 reaches a position where the lower surface of the head portion 71 contacts the inner surface of the side wall portion 61. The shaft portion 72 of the connecting bolt 70 is protruded and fixed from the side wall portion 61 of the outer ring 60 of the constant velocity joint 50 by press-fitting the large diameter portion 72a of the base portion. A male screw portion 73 is formed at the tip of the shaft portion 72 of the connecting bolt 70, and a caulking groove 74 for preventing the tightening nut 75 from rotating is recessed in the male screw portion 73.

図１に示すように、ハブホイール１０のハブ軸１３の端面（この実施例１ではハブ軸１３のかしめ部１７の端面）と、この端面に突き合わされる等速ジョイント５０の外輪６０の側壁部６１の端面には、相互に噛み合うことでハブ軸１３と等速ジョイント５０の外輪６０とをトルク伝達可能に接続する両サイドフェーススプライン１８、８０が形成されている。
そして、ハブホイール１０と、等速ジョイント５０とは次のようにしてトルク伝達可能に一体状に連結される。
すなわち、先ず、等速ジョイント５０の外輪６０の側壁部６１端面から突出された連結ボルト７０の軸部７２をハブホイール１０のハブ軸１３の内孔１４の一端側（車幅方向中心側）から他端側（車幅方向外側）に向けて挿通する。
その後、ハブ軸１３の端面のサイドフェーススプライン１８と等速ジョイント５０の外輪６０の側壁部６１端面のサイドフェーススプライン８０を噛み合わせながら、連結ボルト７０の軸部７２先端部の雄ねじ部７３をハブ軸１３の内孔１４の他端側に突出させた状態で、雄ねじ部６５に締付ナット７５が締め付けられる。ここで、締付ナット７５端部の薄肉部７６の一部が雄ねじ部７３のかしめ溝７４内にかしめられて回り止めされることで、ハブホイール１０と等速ジョイント５０とがトルク伝達可能に一体状に連結される。 As shown in FIG. 1, the end surface of the hub shaft 13 of the hub wheel 10 (in this embodiment 1, the end surface of the caulking portion 17 of the hub shaft 13) and the side wall portion of the outer ring 60 of the constant velocity joint 50 that abuts against this end surface. Both side face splines 18 and 80 are formed on the end face of 61 to connect the hub shaft 13 and the outer ring 60 of the constant velocity joint 50 so as to be able to transmit torque.
The hub wheel 10 and the constant velocity joint 50 are integrally connected so as to transmit torque as follows.
That is, first, the shaft portion 72 of the connecting bolt 70 protruding from the end surface of the side wall portion 61 of the outer ring 60 of the constant velocity joint 50 is moved from one end side (vehicle width direction center side) of the inner hole 14 of the hub shaft 13 of the hub wheel 10. Insert it toward the other end (outside in the vehicle width direction).
Thereafter, the male screw portion 73 at the tip end of the shaft portion 72 of the connecting bolt 70 is connected to the hub while the side face spline 18 at the end surface of the hub shaft 13 and the side face spline 80 at the end surface of the side wall portion 61 of the outer ring 60 of the constant velocity joint 50 are engaged. A tightening nut 75 is fastened to the male screw portion 65 in a state of protruding to the other end side of the inner hole 14 of the shaft 13. Here, a part of the thin portion 76 at the end of the tightening nut 75 is caulked in the caulking groove 74 of the male screw portion 73 and is prevented from rotating, so that the hub wheel 10 and the constant velocity joint 50 can transmit torque. Connected together.

図２に示すように、ハブ軸１３の端面と等速ジョイント５０の外輪６０の側壁部６１端面の両サイドフェーススプライン１８、８０を構成する各多数個の歯部１８ａ、８０ａのうち、少なくとも一つの歯部が除去され、この除去部８２に排水路８３が構成されている。
この実施例１において、等速ジョイント５０の外輪６０の側壁部６１端面のサイドフェーススプライン８０を構成する多数個の歯部８０ａのうち、一つの歯部が除去され、この除去部８２に排水路８３が構成されている。 As shown in FIG. 2, at least one of the multiple tooth portions 18 a and 80 a constituting both side face splines 18 and 80 on the end surface of the hub shaft 13 and the end surface of the side wall 61 of the outer ring 60 of the constant velocity joint 50 is provided. One tooth portion is removed, and a drainage channel 83 is formed in the removal portion 82.
In the first embodiment, one tooth portion is removed from a large number of tooth portions 80 a constituting the side face spline 80 on the end face of the side wall portion 61 of the outer ring 60 of the constant velocity joint 50, and the drainage channel is connected to the removal portion 82. 83 is configured.

この実施例１に係る車輪支持装置は上述したように構成される。
したがって、車両の走行時等の駆動軸５１のトルクは、等速ジョイント５０の内輪５２、複数のボール５３及び外輪６０に順次伝達され、駆動軸５１と同方向に外輪６０が回転される。
等速ジョイント５０に伝達されたトルクは、ハブホイール１０のハブ軸１３の端面（かしめ部１７の端面）と、等速ジョイント５０の外輪６０の側壁部６１端面との両サイドフェーススプライン１８、８０の噛み合いによってハブホイール１０に伝達され、車輪が回転駆動される。 The wheel support device according to the first embodiment is configured as described above.
Accordingly, the torque of the drive shaft 51 during traveling of the vehicle is sequentially transmitted to the inner ring 52, the plurality of balls 53, and the outer ring 60 of the constant velocity joint 50, and the outer ring 60 is rotated in the same direction as the drive shaft 51.
The torque transmitted to the constant velocity joint 50 is generated on both side face splines 18, 80 between the end surface of the hub shaft 13 of the hub wheel 10 (end surface of the caulking portion 17) and the end surface of the side wall portion 61 of the outer ring 60 of the constant velocity joint 50. Is transmitted to the hub wheel 10 and the wheel is driven to rotate.

車両走行時において、車輪が跳ね上げる泥水等が両サイドフェーススプライン１８、８０の噛み合いの隙間から内部に侵入した場合、侵入した泥水等は、遠心力の作用によって外径側へ向けて流れ、サイドフェーススプライン８０の歯部８０ａの除去部８２によって構成された排水路８３から外部へ排水される。
このようにして、両サイドフェーススプライン１８、８０の噛み合いの隙間から内部に侵入した泥水等を排水路８３から外部に良好に排水することができるため、発錆を防止することができる。 When the muddy water and the like that the wheels bounce up enter the inside through the meshing gap between the side face splines 18 and 80 when the vehicle travels, the muddy water that has entered flows toward the outer diameter side by the action of centrifugal force, Water is drained from the drainage channel 83 formed by the removal portion 82 of the tooth portion 80a of the face spline 80 to the outside.
In this way, muddy water or the like entering the inside through the gap between the meshes of the side face splines 18 and 80 can be drained well from the drainage channel 83 to the outside, so that rusting can be prevented.

なお、前記実施例１においては、等速ジョイント５０の外輪６０の側壁部６１端面のサイドフェーススプライン８０を構成する多数個の歯部８０ａのうち、一つの歯部が除去され、この除去部８２に排水路８３が構成される場合を例示したが、図３に示すように、サイドフェーススプライン８０を構成する多数個の歯部８０ａのうち、略１８０度の角度を隔てる二つ歯部が除去され、これら除去部８２に排水路８３がそれぞれ構成されもよく、また、図４に示すように、サイドフェーススプライン８０を構成する多数個の歯部８０ａのうち、略１２０度の角度を隔てる三つ歯部が除去され、これら除去部８２に排水路８３がそれぞれ構成されもよい。
すなわち、歯部８０ａの除去数は、両サイドフェーススプライン１８、８０の噛み合いによるトルク伝達に支障をきたすことがない程度に適宜に設定すればよい。
また、ハブホイール１０のハブ軸１３の端面のサイドフェーススプライン１８を構成する多数個の歯部１８ａのうち、少なくとも一つの歯部が除去され、この除去部に排水路が構成される場合においても同等の作用効果を奏する。 In the first embodiment, one tooth portion is removed from the multiple tooth portions 80a constituting the side face spline 80 on the end surface of the side wall portion 61 of the outer ring 60 of the constant velocity joint 50, and the removal portion 82 is removed. However, as shown in FIG. 3, two tooth portions that are separated by an angle of about 180 degrees are removed from the many tooth portions 80 a constituting the side face spline 80. In addition, the drainage passages 83 may be formed in the removal portions 82, respectively, and, as shown in FIG. 4, three of the tooth portions 80a constituting the side face spline 80 are separated by an angle of about 120 degrees. The toothed portions may be removed, and the drainage channels 83 may be formed in the removal portions 82, respectively.
That is, the removal number of the tooth portions 80a may be set as appropriate so as not to hinder the torque transmission due to the meshing of the side face splines 18 and 80.
Further, even when at least one tooth portion is removed from the multiple tooth portions 18a constituting the side face spline 18 on the end face of the hub axle 13 of the hub wheel 10, and a drainage channel is formed in the removal portion. Equivalent effect.

（実施例２）
次に、この発明の実施例２を図５にしたがって説明する。
図５はこの発明の実施例２に係る車輪支持装置を示す側断面図である。
図５に示すように、この実施例２において、ハブホイール１０のハブ軸１３を内孔１１４が、サイドフェーススプライン１８側に位置する一端側が大径で他端側に向けてしだいに小径に形成されたテーパ孔をなしている。
この実施例２のその他の構成は、実施例１と同様にして構成されるため、同一構成部分に対し同一符号を付記してその説明は省略する。 (Example 2)
Next, a second embodiment of the present invention will be described with reference to FIG.
FIG. 5 is a side sectional view showing a wheel support device according to Embodiment 2 of the present invention.
As shown in FIG. 5, in the second embodiment, the hub shaft 13 of the hub wheel 10 is formed with an inner hole 114 having a large diameter at one end located on the side face spline 18 side and a small diameter gradually toward the other end side. A tapered hole is formed.
Since other configurations of the second embodiment are configured in the same manner as the first embodiment, the same components are denoted by the same reference numerals, and the description thereof is omitted.

したがって、この実施例２においても、車輪が跳ね上げる泥水等が両サイドフェーススプライン１８、８０の噛み合いの隙間から内部に侵入した場合、侵入した泥水等は、遠心力の作用によって外径側へ向けて流れ、サイドフェーススプライン８０の歯部８０ａの除去部８２によって構成された排水路８３から外部へ排水される。
特に、この実施例２においては、両サイドフェーススプライン１８、８０の噛み合いの隙間からハブ軸１３の内孔（テーパ孔）１１４の一端側に侵入した泥水等が同内孔１１４の他端側へ向けて流れることを抑制することができるため、排水性の向上を図ることができる。 Therefore, also in the second embodiment, when muddy water or the like that the wheels jump up enters the inside through the gap between the meshes of the side face splines 18 and 80, the muddy water or the like that has entered is directed toward the outer diameter side by the action of centrifugal force. The water is discharged from the drainage channel 83 formed by the removal portion 82 of the tooth portion 80a of the side face spline 80 to the outside.
In particular, in the second embodiment, muddy water or the like that has entered one end side of the inner hole (tapered hole) 114 of the hub shaft 13 from the gap between the engagement of the side face splines 18 and 80 to the other end side of the inner hole 114. Since it can suppress flowing toward, improvement of drainage can be aimed at.

なお、この発明は前記実施例１及び２に限定するものではない。
例えば、前記実施例１及び２においては、等速ジョイント５０の外輪６０の側壁部６１の貫通孔６３に、外輪６０とは別体の連結ボルト７０が圧入によって固定される場合を例示したが、外輪６０の側壁部６１から連結ボルトを一体に突出した場合においてもこの発明を実施可能である。
また、ハブホイール側の転がり軸受としては複列のアンギュラ玉軸受２０の他、複列の円すいころ軸受けを用いてもこの発明を実施可能である。 The present invention is not limited to the first and second embodiments.
For example, in the first and second embodiments, the case where the connecting bolt 70 separate from the outer ring 60 is fixed to the through hole 63 of the side wall 61 of the outer ring 60 of the constant velocity joint 50 by press-fitting is illustrated. The present invention can be implemented even when the connecting bolt projects integrally from the side wall portion 61 of the outer ring 60.
Further, as the rolling bearing on the hub wheel side, the present invention can be implemented by using a double row tapered roller bearing in addition to the double row angular ball bearing 20.

この発明の実施例１に係る車輪支持装置を示す側断面図である。It is a sectional side view which shows the wheel support apparatus which concerns on Example 1 of this invention. 同じくハブ軸の端面と等速ジョイントの外輪の側壁部の端面の両サイドフェーススプラインの噛み合い状態を示す展開図である。Similarly, it is a development view showing the meshing state of both side face splines of the end surface of the hub shaft and the end surface of the side wall portion of the outer ring of the constant velocity joint. サイドフェーススプラインを構成する多数個の歯部のうち、略１８０度の角度を隔てる二つ歯部が除去された実施態様を示す説明図である。It is explanatory drawing which shows the embodiment from which the two tooth part which separated the angle of about 180 degree | times was removed among many tooth parts which comprise a side face spline. サイドフェーススプラインを構成する多数個の歯部のうち、略１２０度の角度を隔てる三つ歯部が除去された実施態様を示す説明図である。It is explanatory drawing which shows the embodiment from which the three-tooth part which separated the angle of about 120 degree | times was removed among the many tooth parts which comprise a side face spline. この発明の実施例２に係る車輪支持装置を示す側断面図である。It is a sectional side view which shows the wheel support apparatus which concerns on Example 2 of this invention.

符号の説明Explanation of symbols

１０ ハブホイール
１１ フランジ
１３ ハブ軸
１４ 内孔
１７ かしめ部
１８ サイドフェーススプライン
２０ アンギュラ玉軸受（転がり軸受）
２１ 内輪
５０ 等速ジョイント
６０ 外輪
６１ 側壁部
８０ サイドフェーススプライン
８０ａ 歯部
８２ 除去部
８３ 排水路 DESCRIPTION OF SYMBOLS 10 Hub wheel 11 Flange 13 Hub shaft 14 Inner hole 17 Caulking part 18 Side face spline 20 Angular contact ball bearing (rolling bearing)
21 Inner ring 50 Constant velocity joint 60 Outer ring 61 Side wall part 80 Side face spline 80a Tooth part 82 Removal part 83 Drainage channel

Claims (2)

車輪が取り付けられるハブホイールのハブ軸と、等速ジョイントの外輪とがトルク伝達可能に連結された車輪支持装置であって、
前記ハブ軸の端面と、この端面に突き合わされる前記等速ジョイントの外輪の端壁部端面には、相互に噛み合うことで前記ハブホイールのハブ軸と前記等速ジョイントの外輪とをトルク伝達可能に接続する両サイドフェーススプラインが形成され、
前記両サイドフェーススプラインを構成する各多数個の歯部のうち、少なくとも一つの歯部が除去され、この除去部に排水路が構成されていることを特徴とする車輪支持装置。 A wheel support device in which a hub shaft of a hub wheel to which a wheel is attached and an outer ring of a constant velocity joint are connected so as to be able to transmit torque,
Torque can be transmitted between the hub axle of the hub wheel and the outer ring of the constant velocity joint by meshing with the end face of the hub axle and the end wall portion end face of the outer race of the constant velocity joint abutted against the end face. Both side face splines connecting to are formed,
A wheel support device, wherein at least one tooth portion is removed from each of a plurality of tooth portions constituting the both side face splines, and a drainage channel is formed in the removal portion. 請求項１に記載の車輪支持装置であって、
ハブホイールのハブ軸には、同ハブ軸と、等速ジョイントの外輪とを連結する連結ボルトが挿通される内孔が形成され、
前記ハブ軸の内孔は、サイドフェーススプライン側に位置する一端側が大径で他端側に向けてしだいに小径に形成されたテーパ孔をなしていることを特徴とする車輪支持装置。 The wheel support device according to claim 1,
The hub axle of the hub wheel is formed with an inner hole through which a connecting bolt that connects the hub axle and the outer ring of the constant velocity joint is inserted.
The wheel support device according to claim 1, wherein the inner hole of the hub shaft has a tapered hole having a large diameter at one end located on the side face spline side and a small diameter gradually toward the other end.
JP2007259694A 2007-10-03 2007-10-03 Wheel support device Expired - Fee Related JP5292758B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2007259694A JP5292758B2 (en) 2007-10-03 2007-10-03 Wheel support device
US12/285,361 US8025579B2 (en) 2007-10-03 2008-10-02 Wheel support apparatus
EP08017406A EP2045100B1 (en) 2007-10-03 2008-10-02 Wheel support apparatus
EP10007921A EP2241454B1 (en) 2007-10-03 2008-10-02 Whell support apparatus
DE602008002670T DE602008002670D1 (en) 2007-10-03 2008-10-02 wheel support
EP12000190.4A EP2441594B1 (en) 2007-10-03 2008-10-02 Wheel support apparatus
US13/137,248 US8353775B2 (en) 2007-10-03 2011-08-01 Wheel support apparatus

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FR3034708A1 (en) * 2015-04-10 2016-10-14 Ntn-Snr Roulements ROTATIONAL DRIVE SYSTEM FOR A MOTOR VEHICLE WHEEL
CN108327462A (en) * 2018-04-03 2018-07-27 北京汽车研究总院有限公司 A kind of drive axle wheel edge structure, preceding bridge system and vehicle

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Publication number Priority date Publication date Assignee Title
KR101431097B1 (en) * 2012-11-30 2014-09-23 주식회사 일진글로벌 Wheel bearing assembly
FR3034708A1 (en) * 2015-04-10 2016-10-14 Ntn-Snr Roulements ROTATIONAL DRIVE SYSTEM FOR A MOTOR VEHICLE WHEEL
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CN108327462A (en) * 2018-04-03 2018-07-27 北京汽车研究总院有限公司 A kind of drive axle wheel edge structure, preceding bridge system and vehicle
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