JP2013181634A - Carrier support structure - Google Patents

Carrier support structure Download PDF

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JP2013181634A
JP2013181634A JP2012047395A JP2012047395A JP2013181634A JP 2013181634 A JP2013181634 A JP 2013181634A JP 2012047395 A JP2012047395 A JP 2012047395A JP 2012047395 A JP2012047395 A JP 2012047395A JP 2013181634 A JP2013181634 A JP 2013181634A
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cylindrical portion
collar member
circlip
peripheral surface
bearing
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JP5808698B2 (en
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Naohiro Kumagai
修宏 熊谷
Hiranori Kobayashi
平典 小林
Hideo Udo
秀男 有働
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a carrier support structure which prevents a circlip from coming off from an annular groove of a cylindrical portion.SOLUTION: A carrier support structure includes a cylindrical portion 3 of a carrier 2 of a planetary gear mechanism 1, a first bearing 6 for supporting a support member 5 of a ring gear 4 on the cylindrical portion 3, a circlip 7 for preventing the first bearing 6 from moving, and a collar member 8 which fits with the outer circumferences of the cylindrical portion 3 and the circlip 7. The cylindrical portion 3 is provided with an annular groove 18, the circlip 7 is fit into the annular groove 18, the cylindrical portion 3 is provided with an oil groove 19 from the tip side end face to the outer circumference surface, an air gap 20 is arranged for lubricant dwelling between the cylindrical portion 3 and the collar member 8, and the collar member 8 is provided with an oil hole 21 communicating from the air gap 20 to the outer circumference surface.

Description

本発明は、遊星歯車機構のキャリアを回転シャフト上に支持するキャリア支持構造に関する。   The present invention relates to a carrier support structure for supporting a carrier of a planetary gear mechanism on a rotating shaft.

従来、遊星歯車機構のキャリアを回転シャフト上に支持する場合、遊星滑車機構のリングギアが、キャリアの外周に軸受を介して支持されることがある。例えば、特許文献1に記載の技術においては、キャリアの中央部から軸線方向に延びた円筒部の内周側を回転シャフトの外周に固定することにより、キャリアを回転シャフト上に支持している。遊星歯車機構のリングギアは、円筒部の外周に、ベアリングを介して回転自在に支持される。   Conventionally, when the carrier of the planetary gear mechanism is supported on the rotating shaft, the ring gear of the planetary pulley mechanism may be supported on the outer periphery of the carrier via a bearing. For example, in the technique described in Patent Document 1, the carrier is supported on the rotating shaft by fixing the inner peripheral side of the cylindrical portion extending in the axial direction from the center of the carrier to the outer periphery of the rotating shaft. The ring gear of the planetary gear mechanism is rotatably supported on the outer periphery of the cylindrical portion via a bearing.

ベアリングは、円筒部から抜けることがないように、サークリップによって、円筒部の先端方向に移動するのが阻止されている。サークリップは、円筒部の外周に設けられた環状溝に嵌合され、円筒部に固定される。   The bearing is prevented from moving in the distal direction of the cylindrical portion by the circlip so as not to come out of the cylindrical portion. The circlip is fitted into an annular groove provided on the outer periphery of the cylindrical portion, and is fixed to the cylindrical portion.

国際公開第2011/077869号公報International Publication No. 2011/0777869

しかしながら、上述の特許文献1の技術によれば、ベアリングの移動を阻止するサークリップは、回転シャフトの高回転時に開いて円筒部の環状溝から外れるおそれがある。   However, according to the technique of Patent Document 1 described above, the circlip that prevents the movement of the bearing may open during the high rotation of the rotating shaft and come off from the annular groove of the cylindrical portion.

本発明の目的は、かかる従来技術の課題に鑑み、円筒部の環状溝からサークリップが外れるのを防止できるキャリア支持構造を提供することにある。   An object of the present invention is to provide a carrier support structure capable of preventing a circlip from coming off from an annular groove of a cylindrical portion in view of the problems of the related art.

本発明のキャリア支持構造は、遊星歯車機構のキャリアの中央部を基端として該キャリアの軸線の一方向に延びる円筒部と、前記遊星歯車機構のリングギアの支持部材を該円筒部の周りで回転自在に支持する第1軸受と、前記第1軸受が軸線方向へ移動するのを阻止するサークリップと、前記円筒部及び前記サークリップの外周に嵌合するカラー部材とを備え、前記円筒部には、その外周面に周方向の環状溝が設けられ、前記サークリップは、前記環状溝に嵌合されて前記円筒部に固定され、前記円筒部には、その先端側端面から外周面に至る油溝が設けられ、前記円筒部の外周面と前記カラー部材の内周面との間には、前記油溝から供給される潤滑油が一時的に滞留する空隙が存在し、前記カラー部材には、前記空隙から外周面に通じた油孔が設けられていることを特徴とする。   The carrier support structure of the present invention includes a cylindrical portion extending in one direction of an axis of the carrier with the center portion of the carrier of the planetary gear mechanism as a base end, and a support member for the ring gear of the planetary gear mechanism around the cylindrical portion. A first bearing that is rotatably supported; a circlip that prevents the first bearing from moving in an axial direction; and a cylindrical member that is fitted to the outer periphery of the cylindrical part and the circlip. Is provided with a circumferential annular groove on the outer peripheral surface thereof, and the circlip is fitted to the annular groove and fixed to the cylindrical portion. An oil groove is provided between the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the collar member, and there is a gap in which lubricating oil supplied from the oil groove temporarily stays, The oil that has passed from the gap to the outer peripheral surface Wherein the is provided.

本発明によれば、サークリップの外周に嵌合するカラー部材を設けたので、サークリップが円筒部の環状溝から外れるのを防止することができる。また、円筒部の油溝、カラー部材の油孔、及び円筒部とカラー部材との間の空隙を設けたので、カラー部材を設けたにも拘わらず、カラー部材周囲への適切な潤滑油の供給を確保することができる。   According to the present invention, since the collar member fitted to the outer periphery of the circlip is provided, the circlip can be prevented from coming off from the annular groove of the cylindrical portion. In addition, since the oil groove in the cylindrical part, the oil hole in the collar member, and the gap between the cylindrical part and the collar member are provided, the appropriate lubricating oil around the collar member is provided despite the provision of the collar member. Supply can be secured.

本発明においては、前記カラー部材は、前記サークリップの開口部に嵌合した凸部を有していてもよい。これによれば、カラー部材の周方向への回転がサークリップにより阻止されるので、カラー部材と円筒部との接触部分が摺動により摩耗するのを防止することができる。   In this invention, the said collar member may have the convex part fitted to the opening part of the said circlip. According to this, since the rotation of the collar member in the circumferential direction is prevented by the circlip, it is possible to prevent the contact portion between the collar member and the cylindrical portion from being worn by sliding.

本発明においては、前記円筒部の内周側に回転シャフトの外周が固定されており、前記回転シャフトは、前記円筒部の先端側に隣接して該回転シャフトの外周に固定された内輪を有する第2軸受により回転自在に支持され、前記第1軸受は、前記円筒部の外周に固定された内輪を有し、前記サークリップは、前記第1軸受の軸線方向への移動阻止を、前記内輪の前記円筒部先端側に隣接することにより達成するものであり、前記カラー部材は、前記第1軸受の内輪から前記第2軸受の内輪までの前記軸線方向の距離に一致する該軸線方向の長さ、又はこの長さよりも前記サークリップの該軸線方向の長さ未満の所定の長さだけ短い長さを有していてもよい。   In the present invention, the outer periphery of the rotating shaft is fixed to the inner peripheral side of the cylindrical portion, and the rotating shaft has an inner ring fixed to the outer periphery of the rotating shaft adjacent to the distal end side of the cylindrical portion. The first bearing has an inner ring that is rotatably supported by a second bearing, and the circlip prevents the movement of the first bearing in the axial direction. The collar member is achieved by being adjacent to the tip end side of the cylindrical portion, and the collar member has a length in the axial direction that matches the axial distance from the inner ring of the first bearing to the inner ring of the second bearing. Alternatively, it may have a length shorter than this length by a predetermined length less than the length of the circlip in the axial direction.

これによれば、カラー部材を円筒部の外側に嵌合して取り付ける際に、サークリップが円筒部の環状溝から外れた状態にあるとすれば、カラー部材のサークリップ側の端部は、サークリップの外周に嵌合しない。このため、カラー部材は、少なくともサークリップの軸線方向の長さ分だけ第2軸受側にずれるので、第2軸受側の端部が、円筒部の先端からはみ出る。   According to this, when the circlip is in a state of being detached from the annular groove of the cylindrical part when the collar member is fitted and attached to the outside of the cylindrical part, the end part on the circlip side of the collar member is Do not fit around the circlip. For this reason, since the collar member is displaced toward the second bearing side by at least the length of the circlip in the axial direction, the end portion on the second bearing side protrudes from the tip of the cylindrical portion.

したがって、カラー部材の取付けに際しては、このはみ出しの有無に注意を払うことにより、サークリップが円筒部の環状溝から外れた状態のまま誤ってカラー部材を取り付けるのを防止することができる。   Therefore, when attaching the collar member, by paying attention to the presence or absence of the protrusion, it is possible to prevent the collar member from being erroneously attached while the circlip is detached from the annular groove of the cylindrical portion.

また、本発明においては、前記カラー部材の油孔は、前記円筒部の軸線方向において、前記円筒部の油溝と存在範囲が重複しており、前記円筒部の外周面及び前記カラー部材の内周面には、前記油溝上に前記油孔が位置するように周方向の位置を合わせるための凹部及びこれに対応する凸部が設けられていてもよい。   In the present invention, the oil hole of the collar member overlaps with the oil groove of the cylindrical portion in the axial direction of the cylindrical portion, and the outer peripheral surface of the cylindrical portion and the inner surface of the collar member are overlapped. The peripheral surface may be provided with a concave portion for aligning a circumferential position so that the oil hole is positioned on the oil groove, and a convex portion corresponding thereto.

これによれば、円筒部にカラー部材を取り付けるとき、油溝上に油孔が位置するように容易に位置を合わせることができる。また、取付け後は、油溝と油孔がずれるのを防止することができる。これにより、カラー部材の外側に支障なく潤滑油を供給し、カラー部材外側の各種機構における潤滑性を向上させることができる。   According to this, when attaching a collar member to a cylindrical part, a position can be easily adjusted so that an oil hole may be located on an oil groove. In addition, it is possible to prevent the oil groove and the oil hole from being displaced after the attachment. Thereby, the lubricating oil can be supplied to the outside of the collar member without any trouble, and the lubricity in various mechanisms outside the collar member can be improved.

本発明の一実施形態に係るキャリア支持構造を示す断面図である。It is sectional drawing which shows the carrier support structure which concerns on one Embodiment of this invention. 図1のキャリア支持構造におけるキャリアの斜視図である。It is a perspective view of the carrier in the carrier support structure of FIG. 図2のキャリアの側面図である。FIG. 3 is a side view of the carrier of FIG. 2. 図1のキャリア支持構造におけるサークリップの開口部近傍部分の断面図である。It is sectional drawing of the opening part vicinity part of the circlip in the carrier support structure of FIG. 図1のキャリア支持構造においてサークリップが外れた状態でカラー部材を取り付けたときの様子を示す断面図である。It is sectional drawing which shows a mode when a collar member is attached in the state which the circlip removed from the carrier support structure of FIG. 図1のキャリア支持構造における円筒部及びカラー部材の一部分の断面図である。FIG. 2 is a cross-sectional view of a cylindrical portion and a part of a collar member in the carrier support structure of FIG. 1. カラー部材が取り付けられた図2のキャリアについてのカラー部材の油孔を通る面で切断した断面図である。It is sectional drawing cut | disconnected by the surface which passes along the oil hole of the collar member about the carrier of FIG. 2 to which the collar member was attached.

以下、図面を用いて本発明の実施形態を説明する。図1に示すように、実施形態に係るキャリア支持構造は、遊星歯車機構1のキャリア2の円筒部3と、遊星歯車機構1のリングギア4の支持部材5を円筒部3の周りで回転自在に支持する第1軸受6と、第1軸受6が軸方向へ移動するのを阻止するサークリップ7と、円筒部3及びサークリップ7の外周に嵌合するカラー部材8とを備える。円筒部3は、キャリア2の中央部を基端として、該キャリア2の軸線の一方向に延びている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the carrier support structure according to the embodiment allows the cylindrical portion 3 of the carrier 2 of the planetary gear mechanism 1 and the support member 5 of the ring gear 4 of the planetary gear mechanism 1 to rotate around the cylindrical portion 3. A circlip 7 that prevents the first bearing 6 from moving in the axial direction, and a collar member 8 that fits to the outer periphery of the cylindrical portion 3 and the circlip 7. The cylindrical portion 3 extends in one direction of the axis of the carrier 2 with the central portion of the carrier 2 as a base end.

遊星歯車機構1は、サンギア9と、リングギア4と、サンギア9及びリングギア4に噛み合うピニオンギア10を自転及び公転自在に支持するキャリア2とを備えたシングルピニオン型のものである。サンギア9は、駆動シャフト11上に固定される。駆動シャフト11には、回転シャフト12が同軸上で回転自在に支持される。   The planetary gear mechanism 1 is of a single pinion type including a sun gear 9, a ring gear 4, and a carrier 2 that supports the sun gear 9 and the pinion gear 10 meshing with the ring gear 4 so as to rotate and revolve. The sun gear 9 is fixed on the drive shaft 11. A rotating shaft 12 is supported on the drive shaft 11 so as to be rotatable on the same axis.

第1軸受6は、円筒部3の外周に固定された内輪13と、リングギア4の支持部材5に固定された外輪14と、内輪13及び外輪14間で回転するボール15とを備える。サークリップ7は、第1軸受6の軸方向への移動阻止を、内輪13の円筒部3先端側に隣接することにより達成する。   The first bearing 6 includes an inner ring 13 fixed to the outer periphery of the cylindrical portion 3, an outer ring 14 fixed to the support member 5 of the ring gear 4, and a ball 15 that rotates between the inner ring 13 and the outer ring 14. The circlip 7 prevents the first bearing 6 from moving in the axial direction by being adjacent to the distal end side of the cylindrical portion 3 of the inner ring 13.

遊星歯車機構1は、変速機内に設けられており、例えば、リングギア4の支持部材5を、ロック機構16により変速機のケース17に固定した状態において、サンギア9に入力される駆動シャフト11の動力を減速し、キャリア2を介して回転シャフト12に伝達する。   The planetary gear mechanism 1 is provided in the transmission. For example, in a state where the support member 5 of the ring gear 4 is fixed to the case 17 of the transmission by the lock mechanism 16, the drive shaft 11 input to the sun gear 9 is provided. The power is decelerated and transmitted to the rotating shaft 12 via the carrier 2.

円筒部3には、その外周面に周方向の環状溝18が設けられる。サークリップ7は、環状溝18に嵌合されて円筒部3に固定される。円筒部3には、その先端側端面から外周面に至る油溝19が設けられる。円筒部3の外周面とカラー部材8の内周面との間には、油溝19から供給される潤滑油が一時的に滞留する空隙20が存在する。カラー部材8には、空隙20から外周面に通じた油孔21が設けられる。   The cylindrical portion 3 is provided with a circumferential annular groove 18 on the outer peripheral surface thereof. The circlip 7 is fitted into the annular groove 18 and fixed to the cylindrical portion 3. The cylindrical portion 3 is provided with an oil groove 19 extending from the front end side end surface to the outer peripheral surface. Between the outer peripheral surface of the cylindrical portion 3 and the inner peripheral surface of the collar member 8, there is a gap 20 in which the lubricating oil supplied from the oil groove 19 temporarily stays. The collar member 8 is provided with an oil hole 21 extending from the gap 20 to the outer peripheral surface.

キャリア2の円筒部3の内周側に回転シャフト12の外周が固定される。回転シャフト12は、ケース17により第2軸受22を介して回転自在に支持される。第2軸受22は、円筒部3の先端側に隣接して回転シャフト12の外周に固定された内輪23と、変速機のケース17に固定された外輪24と、内輪23及び外輪24間で回転するボール25とを備える。   The outer periphery of the rotating shaft 12 is fixed to the inner peripheral side of the cylindrical portion 3 of the carrier 2. The rotating shaft 12 is rotatably supported by the case 17 via the second bearing 22. The second bearing 22 rotates between the inner ring 23 that is fixed to the outer periphery of the rotary shaft 12 adjacent to the distal end side of the cylindrical portion 3, the outer ring 24 that is fixed to the case 17 of the transmission, and the inner ring 23 and the outer ring 24. And a ball 25 to be used.

図2は、キャリア2の斜視図であり、図3は、円筒部3側から見たキャリア2の側面図である。これらの図に示すように、油溝19は、キャリア2の円筒部3の周方向に等間隔な3か所に設けられる。円筒部3の外周面には、環状の第1外周面部分26、第2外周面部分27、第3外周面部分28、第4外周面部分29及び第5外周面部分30が含まれており、この順で、円筒部3の先端側から設けられる。   FIG. 2 is a perspective view of the carrier 2, and FIG. 3 is a side view of the carrier 2 viewed from the cylindrical portion 3 side. As shown in these drawings, the oil grooves 19 are provided at three equally spaced locations in the circumferential direction of the cylindrical portion 3 of the carrier 2. The outer peripheral surface of the cylindrical portion 3 includes an annular first outer peripheral surface portion 26, a second outer peripheral surface portion 27, a third outer peripheral surface portion 28, a fourth outer peripheral surface portion 29, and a fifth outer peripheral surface portion 30. In this order, they are provided from the tip side of the cylindrical portion 3.

第1外周面部分26、第2外周面部分27及び第3外周面部分28はこの順に径が大きくなっている。第3外周面部分28及び第4外周面部分29は径が等しい。第5外周面部分30は、第4外周面部分29よりも径が大きい。   The diameters of the first outer peripheral surface portion 26, the second outer peripheral surface portion 27, and the third outer peripheral surface portion 28 increase in this order. The third outer peripheral surface portion 28 and the fourth outer peripheral surface portion 29 have the same diameter. The fifth outer peripheral surface portion 30 has a larger diameter than the fourth outer peripheral surface portion 29.

図1のように、このような円筒部3の外周面の形状に対応し、カラー部材8は、第1外周面部分26及び第3外周面部分28と接してこれらにより支持され、かつ第2外周面部分27との間で空隙20を形成するような形状を有する。環状溝18は、第3外周面部分28と第4外周面部分29との間に位置する。油溝19は、円筒部3の先端側端面から第1外周面部分26を経て、第2外周面部分27にかけて存在する。   Corresponding to the shape of the outer peripheral surface of the cylindrical portion 3 as shown in FIG. 1, the collar member 8 is in contact with and supported by the first outer peripheral surface portion 26 and the third outer peripheral surface portion 28, and the second It has a shape that forms the air gap 20 with the outer peripheral surface portion 27. The annular groove 18 is located between the third outer peripheral surface portion 28 and the fourth outer peripheral surface portion 29. The oil groove 19 exists from the front end side end surface of the cylindrical portion 3 through the first outer peripheral surface portion 26 to the second outer peripheral surface portion 27.

第1軸受6の内輪13は、第4外周面部分29により支持される。また、キャリア2により支持されるピニオンシャフト31が円筒部3の先端方向へ抜けるのを阻止する環状の抜け止め部材32が、第5外周面部分30の外周に嵌合され、第1軸受6の内輪13とピニオンシャフト31との間で固定される。   The inner ring 13 of the first bearing 6 is supported by the fourth outer peripheral surface portion 29. In addition, an annular retaining member 32 that prevents the pinion shaft 31 supported by the carrier 2 from slipping out toward the distal end of the cylindrical portion 3 is fitted to the outer periphery of the fifth outer peripheral surface portion 30, so that the first bearing 6 It is fixed between the inner ring 13 and the pinion shaft 31.

図4は、サークリップ7の開口部近傍部分の断面図である。図4に示すように、カラー部材8は、サークリップ7の開口部に嵌合した第1凸部33を有する。これにより、サークリップ7に対するカラー部材8の回転が阻止される。   FIG. 4 is a cross-sectional view of the vicinity of the opening of the circlip 7. As shown in FIG. 4, the collar member 8 has a first protrusion 33 fitted in the opening of the circlip 7. Thereby, rotation of the collar member 8 with respect to the circlip 7 is prevented.

また、カラー部材8は、図1のように、第1軸受6の内輪13から第2軸受22の内輪23までの軸線方向の距離に一致する軸線方向の長さ、又はこの長さよりもサークリップ7の軸線方向の長さ未満の所定の長さだけ短い長さを有する。   Further, as shown in FIG. 1, the collar member 8 has an axial length corresponding to the axial distance from the inner ring 13 of the first bearing 6 to the inner ring 23 of the second bearing 22, or a circlip than this length. 7 has a length shorter by a predetermined length less than the length in the axial direction.

図5は、サークリップ7が外れた状態でカラー部材8を取り付けたときの様子を示す断面図である。ただし、図1とは軸方向周りの断面の角度が異なる。図5に示すように、サークリップ7が円筒部3の環状溝18から外れた状態にあるときにカラー部材8を円筒部3の外側に嵌合して取り付けると、カラー部材8のサークリップ7側の端部は、サークリップ7の外周に嵌合しない。このため、上述の軸線方向の長さを有するカラー部材8は、少なくともサークリップ7の軸線方向の長さ分だけ円筒部3の先端側にずれるので、該先端側の端部が、円筒部3の先端からはみ出る。   FIG. 5 is a cross-sectional view showing a state in which the collar member 8 is attached with the circlip 7 detached. However, the angle of the cross section around the axial direction is different from that in FIG. As shown in FIG. 5, when the collar member 8 is fitted and attached to the outside of the cylindrical portion 3 when the circlip 7 is detached from the annular groove 18 of the cylindrical portion 3, the circlip 7 of the collar member 8 is attached. The end on the side does not fit to the outer periphery of the circlip 7. For this reason, the collar member 8 having the length in the axial direction described above is shifted toward the distal end side of the cylindrical portion 3 by at least the length in the axial direction of the circlip 7, so that the end portion on the distal end side is the cylindrical portion 3. Sticks out of the tip.

したがって、カラー部材8の取付けに際しては、このはみ出しの有無に注意を払い、はみ出しが生じた場合には、サークリップ7が円筒部3の環状溝18から外れた状態にあることを認識することができる。この場合には、サークリップ7を正しく環状溝18に取り付けてから、カラー部材8を円筒部3及びサークリップ7の外側に嵌合させることにより、カラー部材8を適切に取り付けることができる。   Therefore, when attaching the collar member 8, attention should be paid to the presence or absence of the protrusion, and when the protrusion has occurred, it is recognized that the circlip 7 is out of the annular groove 18 of the cylindrical portion 3. it can. In this case, the collar member 8 can be appropriately attached by fitting the circlip 7 to the annular groove 18 and then fitting the collar member 8 to the outside of the cylindrical portion 3 and the circlip 7.

図6は、第2外周面部分27と第3外周面部分28(図5参照)との間の部分における円筒部3及びカラー部材8の一部分の断面図である。図6に示すように、円筒部3の外周面及びカラー部材8の内周面には、油溝19(図2参照)と油孔21(図1参照)の周方向の位置を合わせるための凹部としての溝部34及びこれに対応する第2凸部35がそれぞれ設けられている。   FIG. 6 is a cross-sectional view of a portion of the cylindrical portion 3 and the collar member 8 in a portion between the second outer peripheral surface portion 27 and the third outer peripheral surface portion 28 (see FIG. 5). As shown in FIG. 6, the circumferential positions of the oil grooves 19 (see FIG. 2) and the oil holes 21 (see FIG. 1) are aligned with the outer peripheral surface of the cylindrical portion 3 and the inner peripheral surface of the collar member 8. A groove part 34 as a concave part and a second convex part 35 corresponding to the groove part 34 are provided.

第2外周面部分27と第3外周面部分28との間は、図5のように、傾斜面を挟む段差となっている。溝部34は、この傾斜面に、第2外周面部分27と同径で、一体の面をなす底面を有する溝として形成される。また、図1のように、カラー部材8の油孔21は、円筒部3の軸線方向において、円筒部3の油溝19と存在範囲が重複している。   As shown in FIG. 5, there is a step between the second outer peripheral surface portion 27 and the third outer peripheral surface portion 28 with the inclined surface interposed therebetween. The groove portion 34 is formed on the inclined surface as a groove having the same diameter as the second outer peripheral surface portion 27 and a bottom surface forming an integral surface. Further, as shown in FIG. 1, the oil hole 21 of the collar member 8 overlaps with the oil groove 19 of the cylindrical portion 3 in the axial direction of the cylindrical portion 3.

図7は、カラー部材8が取り付けられたキャリア2についてのカラー部材8の油孔21を通る面で切断した断面図である。カラー部材8を円筒部3の先端側から円筒部3の外側に嵌合するとき、図6のように溝部34に第2凸部35を対応させることにより、図7のように、油溝19上に油孔21を位置させることができる。   FIG. 7 is a cross-sectional view of the carrier 2 to which the collar member 8 is attached, cut along a plane passing through the oil holes 21 of the collar member 8. When the collar member 8 is fitted from the distal end side of the cylindrical portion 3 to the outside of the cylindrical portion 3, the oil groove 19 is made to correspond to the groove portion 34 as shown in FIG. The oil hole 21 can be located on the top.

この構成において、駆動シャフト11の内側から駆動シャフト11の油孔36を経て供給される潤滑油は、駆動シャフト11と回転シャフト12との間の隙間、回転シャフト12の油孔37、円筒部3と回転シャフト12との間、及び円筒部3の油溝19を介して、円筒部3とカラー部材8との間の空隙20に達する。   In this configuration, the lubricating oil supplied from the inside of the drive shaft 11 through the oil hole 36 of the drive shaft 11 is a gap between the drive shaft 11 and the rotary shaft 12, the oil hole 37 of the rotary shaft 12, and the cylindrical portion 3. The gap 20 between the cylindrical portion 3 and the collar member 8 is reached through the oil groove 19 of the cylindrical portion 3 and the rotary shaft 12.

空隙20に達した潤滑油は、さらにカラー部材8の油孔21を経てカラー部材8の外周側へ流出する。流出した潤滑油は、第1軸受6、第2軸受22、ロック機構16等へ配分され、これらを良好に潤滑する。   The lubricating oil that has reached the gap 20 flows out to the outer peripheral side of the collar member 8 through the oil holes 21 of the collar member 8. The lubricating oil that has flowed out is distributed to the first bearing 6, the second bearing 22, the lock mechanism 16, etc., and these are lubricated well.

以上のように、本実施形態によれば、サークリップ7の外周に嵌合するカラー部材8を設けたので、サークリップが円筒部3の環状溝18から外れるのを防止することができる。また、円筒部3の油溝19、カラー部材8の油孔21、及び円筒部3とカラー部材8との間の空隙20を設けたので、カラー部材8を設けたにも拘わらず、カラー部材8周囲への適切な潤滑油の供給を確保することができる。   As described above, according to the present embodiment, since the collar member 8 fitted to the outer periphery of the circlip 7 is provided, it is possible to prevent the circlip from coming off from the annular groove 18 of the cylindrical portion 3. Further, since the oil groove 19 of the cylindrical portion 3, the oil hole 21 of the collar member 8, and the gap 20 between the cylindrical portion 3 and the collar member 8 are provided, the color member is provided despite the provision of the color member 8. 8. Appropriate supply of lubricating oil to the surrounding area can be ensured.

また、カラー部材8は、サークリップ7の開口部に嵌合した凸部を有するので、カラー部材8の周方向への回転をサークリップ7により阻止することができる。したがって、カラー部材8と円筒部3との接触部分が摺動により摩耗するのを防止することができる。   Further, since the collar member 8 has a convex portion fitted into the opening of the circlip 7, the circlip 7 can prevent the collar member 8 from rotating in the circumferential direction. Therefore, it is possible to prevent the contact portion between the collar member 8 and the cylindrical portion 3 from being worn by sliding.

また、カラー部材8は、第1軸受6の内輪13から第2軸受の内輪23までの軸線方向の距離に一致する該軸線方向の長さ、又はこの長さよりもサークリップ7の該軸線方向の長さ未満の所定の長さだけ短い長さを有するので、サークリップ7が円筒部3の環状溝18から外れた状態のまま誤ってカラー部材8を取り付けるのを防止することができる。   Further, the collar member 8 has a length in the axial direction that matches the distance in the axial direction from the inner ring 13 of the first bearing 6 to the inner ring 23 of the second bearing, or the axial direction of the circlip 7 is longer than this length. Since the circlip 7 has a length shorter by a predetermined length less than the length, it is possible to prevent the collar member 8 from being erroneously attached while the circlip 7 is detached from the annular groove 18 of the cylindrical portion 3.

また、円筒部3の外周面及びカラー部材8の内周面には、油溝19上にカラー部材8の油孔21が位置するように周方向の位置を合わせるための凹部(溝部34)及びこれに対応する凸部(第2凸部35)が設けられるので、円筒部3にカラー部材8を取り付けるとき、油溝19上にカラー部材8の油孔21が位置するように容易に位置を合わせ、かつ油溝19と油孔21がずれるのを防止することができる。したがって、カラー部材8の外側における各種機構での潤滑性を向上させることができる。   Further, on the outer peripheral surface of the cylindrical portion 3 and the inner peripheral surface of the collar member 8, a recess (groove portion 34) for aligning the circumferential direction so that the oil hole 21 of the collar member 8 is positioned on the oil groove 19; Since the corresponding convex portion (second convex portion 35) is provided, when the collar member 8 is attached to the cylindrical portion 3, the position is easily set so that the oil hole 21 of the collar member 8 is located on the oil groove 19. In addition, the oil groove 19 and the oil hole 21 can be prevented from shifting. Therefore, the lubricity in various mechanisms outside the collar member 8 can be improved.

なお、本発明は、上述の実施形態に限定されない。例えば、上述の実施形態においては、本発明をシングルピニオン型の遊星歯車機構に適用した場合について述べたが、これに限らず、本発明は、サンギアと、リングギアと、互いに噛合するとともに、一方がサンギアに噛合し、他方がリングギアに噛合する一対のピニオンを自転及び公転自在に軸支するキャリアとからなるダブルピニオン型の遊星歯車機構について適用することもできる。   In addition, this invention is not limited to the above-mentioned embodiment. For example, in the above-described embodiment, the case where the present invention is applied to a single pinion type planetary gear mechanism has been described. However, the present invention is not limited to this, and the sun gear and the ring gear mesh with each other. Can be applied to a double pinion type planetary gear mechanism comprising a carrier that rotatably supports and rotates a pair of pinions that mesh with the sun gear and the other mesh with the ring gear.

1…遊星歯車機構、2…キャリア、3…円筒部、4…リングギア、5…支持部材、6…第1軸受、7…サークリップ、8…カラー部材、18…環状溝、19…油溝、20…空隙、21…油孔、33…第1凸部、12…回転シャフト、22…第2軸受、13,23…内輪、34…溝部(凹部)、35…第2凸部。   DESCRIPTION OF SYMBOLS 1 ... Planetary gear mechanism, 2 ... Carrier, 3 ... Cylindrical part, 4 ... Ring gear, 5 ... Support member, 6 ... 1st bearing, 7 ... Circlip, 8 ... Collar member, 18 ... Ring groove, 19 ... Oil groove , 20 ... gap, 21 ... oil hole, 33 ... first convex part, 12 ... rotating shaft, 22 ... second bearing, 13, 23 ... inner ring, 34 ... groove part (concave part), 35 ... second convex part.

Claims (4)

遊星歯車機構のキャリアの中央部を基端として該キャリアの軸線の一方向に延びる円筒部と、
前記遊星歯車機構のリングギアの支持部材を前記円筒部の周りで回転自在に支持する第1軸受と、
前記第1軸受が軸線方向へ移動するのを阻止するサークリップと、
前記円筒部及び前記サークリップの外周に嵌合するカラー部材とを備え、
前記円筒部には、その外周面に周方向の環状溝が設けられ、
前記サークリップは、前記環状溝に嵌合されて前記円筒部に固定され、
前記円筒部には、その先端側端面から外周面に至る油溝が設けられ、
前記円筒部の外周面と前記カラー部材の内周面との間には、前記油溝から供給される潤滑油が一時的に滞留する空隙が存在し、
前記カラー部材には、前記空隙から外周面に通じた油孔が設けられていることを特徴とするキャリア支持構造。
A cylindrical portion extending in one direction of the axis of the carrier from the center of the carrier of the planetary gear mechanism as a base end;
A first bearing that rotatably supports a ring gear support member of the planetary gear mechanism around the cylindrical portion;
A circlip for preventing the first bearing from moving in the axial direction;
A collar member fitted to the outer periphery of the cylindrical portion and the circlip;
The cylindrical portion is provided with a circumferential annular groove on the outer peripheral surface thereof,
The circlip is fitted into the annular groove and fixed to the cylindrical portion,
The cylindrical portion is provided with an oil groove extending from the end surface on the front end side to the outer peripheral surface,
Between the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the collar member, there is a gap where the lubricating oil supplied from the oil groove temporarily stays,
The carrier support structure according to claim 1, wherein the collar member is provided with oil holes extending from the gap to the outer peripheral surface.
前記カラー部材は、前記サークリップの開口部に嵌合した凸部を有することを特徴とする請求項1に記載のキャリア支持構造。   The carrier support structure according to claim 1, wherein the collar member has a convex portion fitted into the opening of the circlip. 前記円筒部の内周側に回転シャフトの外周が固定され、
前記回転シャフトは、前記円筒部の先端側に隣接して該回転シャフトの外周に固定された内輪を有する第2軸受により回転自在に支持され、
前記第1軸受は、前記円筒部の外周に固定された内輪を有し、
前記サークリップは、前記第1軸受の軸線方向への移動阻止を、前記内輪の前記円筒部先端側に隣接することにより達成するものであり、
前記カラー部材は、前記第1軸受の内輪から前記第2軸受の内輪までの前記軸線方向の距離に一致する該軸線方向の長さ、又はこの長さよりも前記サークリップの該軸線方向の長さ未満の所定の長さだけ短い長さを有することを特徴とする請求項1又は2に記載のキャリア支持構造。
The outer periphery of the rotating shaft is fixed to the inner peripheral side of the cylindrical portion,
The rotating shaft is rotatably supported by a second bearing having an inner ring fixed to the outer periphery of the rotating shaft adjacent to the distal end side of the cylindrical portion,
The first bearing has an inner ring fixed to the outer periphery of the cylindrical portion,
The circlip achieves the movement prevention in the axial direction of the first bearing by being adjacent to the tip end side of the cylindrical portion of the inner ring,
The collar member has an axial length corresponding to the axial distance from the inner ring of the first bearing to the inner ring of the second bearing, or the axial length of the circlip than this length. The carrier support structure according to claim 1, wherein the carrier support structure has a length shorter by a predetermined length less than the predetermined length.
前記カラー部材の油孔は、前記円筒部の軸線方向において、前記円筒部の油溝と存在範囲が重複しており、
前記円筒部の外周面及び前記カラー部材の内周面には、前記油溝上に前記油孔が位置するように周方向の位置を合わせるための凹部及びこれに対応する凸部が設けられていることを特徴とする請求項1〜3のいずれか1項に記載のキャリア支持構造。
The oil hole of the collar member overlaps with the oil groove of the cylindrical portion in the axial direction of the cylindrical portion,
The outer peripheral surface of the cylindrical portion and the inner peripheral surface of the collar member are provided with a concave portion and a corresponding convex portion for aligning the circumferential direction so that the oil hole is positioned on the oil groove. The carrier support structure according to any one of claims 1 to 3, wherein
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014199063A (en) * 2013-03-29 2014-10-23 カヤバ工業株式会社 Transmission
KR101591592B1 (en) * 2014-05-08 2016-02-04 현대다이모스(주) Planetary gear set of a transmission
DE102016202533A1 (en) * 2016-02-18 2017-08-24 Zf Friedrichshafen Ag Lubrication of a spline
CN107091301A (en) * 2016-02-18 2017-08-25 本田技研工业株式会社 Planetary gears and speed changer
CN107202154A (en) * 2016-03-17 2017-09-26 本田技研工业株式会社 The e axle supporting construction of drive device
DE102019205760A1 (en) * 2019-04-23 2020-10-29 Zf Friedrichshafen Ag Lubricator and planetary gear and motor vehicle
EP3882493A1 (en) * 2020-03-16 2021-09-22 ZF Friedrichshafen AG Planet carrier with a channel for supplying passive gearing with oil

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014199063A (en) * 2013-03-29 2014-10-23 カヤバ工業株式会社 Transmission
KR101591592B1 (en) * 2014-05-08 2016-02-04 현대다이모스(주) Planetary gear set of a transmission
DE102016202533A1 (en) * 2016-02-18 2017-08-24 Zf Friedrichshafen Ag Lubrication of a spline
CN107091301A (en) * 2016-02-18 2017-08-25 本田技研工业株式会社 Planetary gears and speed changer
US9878606B2 (en) 2016-02-18 2018-01-30 Honda Motor Co., Ltd. Planetary gear mechanism and transmission
CN107202154A (en) * 2016-03-17 2017-09-26 本田技研工业株式会社 The e axle supporting construction of drive device
DE102019205760A1 (en) * 2019-04-23 2020-10-29 Zf Friedrichshafen Ag Lubricator and planetary gear and motor vehicle
EP3882493A1 (en) * 2020-03-16 2021-09-22 ZF Friedrichshafen AG Planet carrier with a channel for supplying passive gearing with oil

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