WO2005019698A1 - Rotating shaft member supporting device - Google Patents

Rotating shaft member supporting device Download PDF

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Publication number
WO2005019698A1
WO2005019698A1 PCT/JP2004/012756 JP2004012756W WO2005019698A1 WO 2005019698 A1 WO2005019698 A1 WO 2005019698A1 JP 2004012756 W JP2004012756 W JP 2004012756W WO 2005019698 A1 WO2005019698 A1 WO 2005019698A1
Authority
WO
WIPO (PCT)
Prior art keywords
shim
bearing
case member
shaft member
rotary shaft
Prior art date
Application number
PCT/JP2004/012756
Other languages
French (fr)
Japanese (ja)
Inventor
Koichi Yoshimura
Koichi Kondo
Original Assignee
Toyota Jidosha Kabushiki Kaisha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Publication of WO2005019698A1 publication Critical patent/WO2005019698A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings

Definitions

  • the present invention relates to a rotary shaft member supporting device in which a first case member and a second case member are connected via a first bearing and a second bearing in a housing comprising the first case member and the second case member.
  • the present invention relates to a rotary shaft member supporting device that rotatably supports a rotary shaft member.
  • a housing configured by combining a first case member and a first case member so as to close each other with the openings facing each other, and the first case member and the first case in the housing And a rotary shaft member rotatably supported via the first bearing and the second bearing, and the 'second case' is concentric with the small diameter hole and the small diameter hole and is smaller than the small diameter hole
  • a stepped hole comprising a large diameter hole having a large diameter is formed, the outer ring of the first bearing is fitted in the large diameter hole, and a shim is interposed between the large diameter hole and the small diameter hole.
  • it is part of a vehicle's power transmission as described in document 1.
  • Japanese Patent Laid-Open No. 9-2 2 6 3 9 2 When assembling the above-described rotary shaft member supporting device, one of the case members constituting the housing, for example, the first case member, has its opening up.
  • the first case member side end 35 of the rotary shaft member is fitted into the fitting hole formed in the first case member via the first bearing, and the rotary shaft member is erected, and the next In the state where the second bearing is fitted to the second case member side end portion, that is, the upper end portion, of the rotary shaft member, the second case member whose opening is directed downward is lowered from the upper side, The second bearing is fitted into the large diameter hole provided in the second case member, and the opening of the second case member is combined with the opening of the first case member and fastened with a bolt or the like.
  • the shim is an annular plate material selected from a plurality of kinds of thickness dimensions for filling a gap in a predetermined thrust direction in the first bearing and the second bearing which rotatably support the rotating shaft member, Since the second bearing has the same radial dimension as the outer ring so as not to interfere with the inner ring, the shim can not be centered only by being placed on the second bearing, At the time of assembly, it is stuck with grease etc. in a state of being fitted in advance in the large diameter hole provided in the second case member. For this reason, when the second case member is turned over so that the opening is directed downward during assembly, the shim may be displaced or dropped, which may cause assembly inoperability or breakage of parts. In addition, if it is fixed to the second case member in some way so as not to fall, there is a disadvantage that the shape becomes complicated.
  • the present invention has been made against the background described above, and an object of the present invention is to provide a rotating shaft member supporting device which prevents the shims from shifting or falling when assembling the rotating shaft member. .
  • DISCLOSURE OF THE INVENTION The gist of the present invention for achieving the above object is configured by combining the first case member and the second case member such that the openings are closed with each other facing each other.
  • a housing and a rotary shaft member rotatably supported by the first case member and the second case member in the housing via the first bearing and the second bearing, and the second case member is provided in the housing.
  • the second case member side end portion of the rotating shaft member is a rotating shaft member supporting device of a type which protrudes through the inner ring of the second bearing, being abutted to a stepped surface between the small diameter hole and the second bearing member.
  • the shim is integrally provided on a pinched portion held between the outer ring of the second bearing and the stepped surface, and the pinched portion, and is mounted on the outer ring of the first bearing at the time of assembly. And a centering portion for centering the first case member side end portion of the rotary shaft member which penetrates the second bearing when it is placed.
  • the shim includes the pinched portion pinched between the outer ring of the second bearing and the stepped surface, and is additionally provided integrally with the pinched portion.
  • a centering portion for centering the second case member side end portion of the rotary shaft member penetrating through the first bearing when mounted on the outer ring of the second bearing at the time of assembly is provided.
  • the shim is integrally provided on an annular outer peripheral portion as the held portion, and on an inner peripheral side of the outer peripheral portion, and the second case member side end portion of the rotating shaft member And an inner circumferential portion having a slightly larger diameter positioning hole.
  • the inner circumferential portion is provided with a plurality of oil holes for facilitating penetration of lubricating oil.
  • the second case member side end of the rotary shaft member penetrates the inner peripheral ring of the second bearing and is received in the small diameter hole, and the diameter of the positioning hole of the shim D 1, the outer diameter of the shim D 2, the thickness of the inner peripheral portion of the shim t, the diameter of the second case member end of the rotary shaft member d, the diameter of the small diameter hole D 3
  • the surface of the inner peripheral portion of the shim facing the inner ring of the second bearing is closer to the second housing than the outer peripheral portion of the ridge in order to avoid interference with the inner ring. It has been transformed. In this way, interference between the shim and the inner ring of the second bearing is preferably prevented.
  • FIG. 1 is a view showing an assembled state of a power transmission device for a hybrid vehicle to which a rotating shaft member supporting device of the present invention is applied.
  • FIG. 2 is a cross-sectional view showing a configuration of a portion corresponding to a rotary shaft member supporting device, which is a main portion of the hybrid vehicle power transmission device of FIG. 1 and rotatably supports the first counter gear shaft.
  • FIG. 3 is a front view illustrating the configuration of the shim used in FIG. 1 and FIG.
  • FIG. 4 is a cross-sectional view for explaining the configuration of the shim used in FIGS. 1 and 2;
  • FIG. 5 is a view for explaining the dimensions and shape of the shims of FIGS. 3 and 4;
  • FIG. 6 is a cross-sectional view of an essential part for explaining a shim according to another embodiment of the present invention.
  • FIG. 6 is a diagram corresponding to a part of 2
  • FIG. 7 is a cross-sectional view of an essential part for explaining a shim according to another embodiment of the present invention.
  • FIG. 6 is a diagram corresponding to a part of 2;
  • FIG. 8 is a cross-sectional view of an essential part for explaining a shim according to another embodiment of the present invention, which corresponds to a part of FIG. BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1
  • FIG. 1 and 2 show a power transmission apparatus for a vehicle to which the rotary shaft support apparatus of the present invention is applied.
  • the vehicle power transmission device 10 is suitably used, for example, in a hybrid vehicle, and the first case member 12 and the second case member 14 are mutually opposed with their openings facing each other. It is provided with a housing 16 configured by combining to be closed.
  • the housing 16 When the housing 16 is assembled, as shown in FIG. 1, the first case member 12 is placed on an assembly platform (not shown) with the opening facing upward, and is not shown with the opening facing downward. It is suspended by the suspending device so that the openings are opposite to each other. In this state, the second case member 14 is lowered to assemble the housing 16.
  • the second counter gear shaft 2 8 that fits with the first counter gear shaft 2 6 and the differential gear device 30 that fits with the second counter gear shaft 2 8 are around the axes parallel to each other. Each is pre-assembled via a bearing so as to be rotatable.
  • the first counter gear shaft 2 6, the second counter gear shaft 2 8, and the differential gear unit 30 are bearing-mounted or fitted at both ends in the axial direction, and the bearing on the first case member 12 side Are respectively erected in the first case member 12 by being fitted into the fitting holes provided in the first case member 12.
  • 1st counter gear shaft 2 6 2nd counter gear shaft 2 8 differential gear When the second case member 14 is lowered, the bearing on the side of the second case member 14 at 30 is fitted into the fitting hole provided in the second case member 14. ing.
  • the first force gear shaft I 6 is in mesh with the second sprocket 32 2 on which the transmission gear 24 is wound and the second counter gear shaft 2 8
  • a first bearing 36 is fitted to the shaft end on the first case member 12 side, and a second bearing 3 is attached to the shaft end on the second case member 14 side. 8 is attached.
  • the second case member 14 of the first counter gear shaft 26 has a side end projecting out through the inner ring 38 u of the second bearing 38 thereof.
  • the first counter gear shaft 26 is in the form of a circular tube, and the projection 48 provided from the second case member 14 for guiding the flow of lubricating oil is the first of the first counter gear shaft 26. 2 Case member 14 Inserted into the center hole on the 4 side.
  • the fitting hole 40 provided in the second case member 14 so that the second bearing 38 is fitted when the second case member 14 is lowered is a small diameter hole 42 and its hole 42 It is composed of a stepped hole consisting of a large diameter hole 44 concentric with the small diameter hole 42 and having a diameter larger than that of the small diameter hole 42.
  • the outer ring 3 8 s of the second bearing 3 8 is its large diameter hole
  • first case member 1.2 and the second case member 14 and the first bearing 36 and the second bearing 38 fitted to them are the first counter gear shaft It corresponds to a rotating shaft member supporting device for rotatably supporting the 26.
  • the shim 50 has an annular plate shape, as shown in detail in FIGS. 3 and 4, and is held or clamped between the outer ring 38s of the second bearing 38 and the stepped surface 46.
  • the outer circumference, ie, the pinched portion 52, and the inner circumferential side of the pinched portion 52 are integrally formed and mounted on the outer ring 3 8 s of the second bearing 38 at the time of assembly.
  • the second force bearing gear shaft 26 is provided with a centering portion 54 which is an inner peripheral portion for centering with respect to an end portion on the side of the 4th shaft of the 1st force counter gear shaft 2 6 penetrating the second bearing 3 8 There is.
  • the centering portion 54 is larger than the outer diameter of the first case gear shaft 26 so as to center the second case member 14.
  • a positioning hole or central hole 5.6 having a diameter that does not interfere with the counter shaft 26 and the second bearing 38
  • the thickness is smaller than that of the support portion 52 which is the outer peripheral portion of the shim 50, and a plurality of them (in the present embodiment, eight) for preventing movement of the lubricating oil. ) Through holes 5 and 8).
  • the shim 50 has a cross-sectional shape that is a target with respect to the center line C in the thickness direction.
  • the diameter of the central hole 56 functioning as a positioning hole of the shim 50 is D1
  • the outer diameter of the shim 50 that is, the pinched portion 5 + 2.
  • the outer diameter is D2
  • the diameter of the second case member 14 side shaft end of the first counter gear shaft 26 is d
  • the diameter d of the 4th shaft end and the inner diameter D 3 of the small diameter hole 4 2 are set and formed respectively.
  • the clamping portion 5 2 is prepared in advance that includes a plurality of types of thickness, most suitable thickness is selected and used.
  • a shim 50 having a thickness which is the same as or slightly smaller than the above-mentioned ⁇ ⁇ ⁇ is selected.
  • the shim 50 includes a support portion 52 that is held between the outer ring 3 8 s of the second bearing 3 8 and the stepped surface 46. With In addition to that, it is integrally provided on the inner peripheral side of the clamped portion 52 and is mounted on the outer ring 3 8 s of the second bearing 3 8 at the time of assembly.
  • the rotary shaft member supporting device When assembling the first case member 12, the second case member of the first counter gear shaft 26 erected on the first case member 12, the second bearing of the fourth bearing fitted to the end of the four-side shaft, and the outer ring 38s of 8s.
  • the shim 50 When the shim 50 is placed, the shim 50 of the shim 50 is centered with respect to the first coin gear shaft 26 by the centering lever 54 of the shim 50, so the shim 50 may be displaced or dropped. There is no need to attach the shim 50 in advance, and it is not necessary to attach the shim 50 in advance to the large diameter hole 4 4 of the second case member 14 using grease etc. Re emesis for generating component breakage can be eliminated.
  • the shim 50 is integrally provided on the inner peripheral side of the held portion 52 which is an annular outer peripheral portion and the held portion 52, and the first counter gear shaft 2 Since the second case member 6 of 6 has a center hole (positioning hole) 56 with a diameter D 1 slightly larger than the diameter d of the 4-side shaft end, the centering portion 54 has The structure of shim 50 becomes simple. Further, since the centering portion 54 is provided with a plurality of through holes (oil holes) 58 for allowing the lubricating oil to easily penetrate, circulation of the lubricating oil is secured.
  • the second case member 14 side shaft end of the first counter gear shaft 26 penetrates the inner peripheral ring 38 u of the second bearing 38 and the small diameter hole 42.
  • the inner diameter of the centering hole 56 for positioning the shim 50 is D1
  • the outer diameter of the shim 50 is D2
  • the thickness of the centering portion 54 which is the inner periphery of the shim 50 is t
  • the diameter of the first case member side end of the rotary shaft member is d
  • the diameter of the small diameter hole is D3
  • the second case member of the first counter gear shaft 26 is fitted to the 14 side shaft end of the first counter gear shaft Since the above equations (1) and (2) are satisfied when the inclination angle of the shim 50 is set to 0, even if the fitting operation of the shim 50 varies, the state of slanting at the time of assembling becomes oblique. Even if it is, there is an advantage that the shim 50 can not be fitted into the small diameter hole 42.
  • the surface of the inner periphery of the shim 50 facing the inner ring 3 8 u of the second bearing 3 8, that is, the second bearing 3 8 side surface of the centering portion 5 4 is the inner ring 3 8 interference with u turn
  • the second case member 14 is deformed to the second case member 14 side more than the pinched portion (peripheral portion) 52 of the shim 50 in order to avoid the shim 50 and the inner ring 3 8 u of the second bearing 3 8 with the shim 50. Interference is preferably prevented.
  • the centering portion 54 which is the inner peripheral portion of the shim 50, has a smaller thickness than the pinched portion 52, which is the outer peripheral portion of the shim 50.
  • FIG. 6 shows a state in which the shim 60 according to another embodiment of the present invention is held between the outer ring 3 8 s of the second bearing 3 8 and the stepped surface 46.
  • the shim 60 includes an annular grip portion 62 and a centering portion 64 integrally provided on the inner side thereof in a state of being shifted by a predetermined dimension toward the first case member 14 side. .
  • the second case member 14 is deformed to the side of the held portion (outer peripheral portion) 62 of the shim 60, so that the same effect as the above-described embodiment can be obtained.
  • the shim 60 can be easily manufactured, for example, by subjecting a single disc to plastic working (pressing), which is advantageous in that it is inexpensive.
  • the shim 70 in FIG. 7 has a shape corresponding to the annular pinched portion 52 or 62 of the shim 50 or 60 described above, and the inner ring of the shim 70 and the second bearing 3 8 In order to prevent buffer between 3 8 u, the axial dimension of the outer ring 3 8 s of the second bearing 3 8 is formed larger than the inner ring 3 8 u.
  • Example 4
  • the shim 80 in FIG. 8 has a shape corresponding to the annular pinched portion 52 or 62 of the shim 50 or 60 described above, and has an axial center from the outer peripheral edge of the pinched portion 52 or 62
  • An annular groove 84, which engages with the annular projection 82, is provided with an annular projection 82 bent at a right angle to the direction, and in the outer periphery of the outer ring 3 8 s of the second bearing 3 8 It is formed.
  • centering is performed by the engagement of the annular projection 82 and the annular groove 84 formed in the outer ring 3 8 s of the second bearing 3 8.
  • the annular projection 82 is bent at a right angle in the axial direction from the inner peripheral edge of the clamped portion 52 or 62, and the inner periphery of the outer ring 38s of the second bearing 38 is An annular groove 84 may be formed to engage the annular projection 82.
  • the rotary shaft member supporting device applied to the vehicle power transmission device 10 used in the hybrid vehicle has been described.
  • an automatic transmission, a continuously variable transmission, a transfer device, etc. It may apply to other devices.
  • the first force gear shaft 26 is described as the rotating shaft member, but it may be a rotating shaft for achieving other purposes or functions.
  • annular pinched portions 52, 62 and the centering portions 54, 64 are provided, they are not completely annular. It may be continuous or annular.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • General Details Of Gearings (AREA)

Abstract

A rotating shaft member supporting device, wherein a shim (50) comprises a held part (52) held between the outer ring (38s) of a second bearing (38) and a stepped face (46) and a centering part (54) formed on the inner peripheral side of the held part (52) integrally with each other. When the centering part (54) is put on the outer ring (38s) of the second shaft (38) in installation, the part (54) performs centering the shim with respect to the side shaft end part of the second case member (14) of a first counter gear shaft (26) passed through the inner ring (38u) of the second bearing (38). Thus, the shim (50) is centered with the first counter gear shaft (26) by the centering part (54) of the shim (50) when the shim (50) is put on the outer ring (38s) of the second bearing (38) on the first counter gear shaft (26) vertically installed on a first case member (12) in the installation of the rotating shaft member supporting device, and therefore, the shim (50) is not deviated nor fallen.

Description

明細書 回転軸部材支持装置 技術分野 本発明は、 第 1ケース部材と第 2ケース部材とから成るハウジング内において 、 それら第 1ケース部材と第 2ケース部材により第 1軸受および第 2軸受を介し てそれぞれ回転可能に回転軸部材を支持する回転軸部材支持装置に関するもので ある。 背景技術 第 1ケース部材と第 ケース部材とを相互の開口が相対向する状態でふさがれ るように組み合わせることにより構成されるハウジングと、 そのハウジング内に おいて前記第 1ケース部材と第 1ケース部材とに第 1軸受および第 2軸受を介し てそれぞれ回転可能に支持される回転軸部材とを備え、'その第 2ケースには、 小 径穴とその小径穴と同心でその小径穴よりも大径である大径穴とから成る段付穴 力、'形成され、 前記第 軸受の外輪はその大径穴に嵌合され且つシムを介してその 大径穴と前記小径穴との間の段付面に当接させられ、 前記回転軸部材の第 1ケー ス部材側端部は該第 2軸受の内輪を通して突き出す形式の回転軸部材支持装置が 知られている。 たとえば、 文献 1に記載されているような車両の動力伝達装置の 一部がそれである。 [文献 1 ] 特開平 9— 2 2 6 3 9 2号公報 上記のような回転軸部材支持装置の組み付けに際しては、 ハウジングを構成す る一方のケース部材たとえば第 1ケース部材がその開口を上にした状態で載置さ れ、 次いでその第 1ケース部材内に形成された嵌合穴内に回転軸部材の第 1ケー ス部材側端 35が第 1軸受けを介して嵌め入れることによりその回転軸部材が立設 され、 次に、 その回転軸部材の第 2ケース部材側端部すなわち上端部に第 2軸受 が嵌め付けられた状態で、 開口を下に向けた第 2ケース部材が上方から下降させ られ、 この下降過程で上記第 2軸受か第 2ケース部材に設けられた大径穴内に嵌 め入れられるとともに、 第 2ケース部材の開口が第 1ケース部材の開口と組み合 わせられ且つボルトなどで締着される。 The present invention relates to a rotary shaft member supporting device in which a first case member and a second case member are connected via a first bearing and a second bearing in a housing comprising the first case member and the second case member. The present invention relates to a rotary shaft member supporting device that rotatably supports a rotary shaft member. BACKGROUND ART A housing configured by combining a first case member and a first case member so as to close each other with the openings facing each other, and the first case member and the first case in the housing And a rotary shaft member rotatably supported via the first bearing and the second bearing, and the 'second case' is concentric with the small diameter hole and the small diameter hole and is smaller than the small diameter hole A stepped hole comprising a large diameter hole having a large diameter is formed, the outer ring of the first bearing is fitted in the large diameter hole, and a shim is interposed between the large diameter hole and the small diameter hole. There is known a rotary shaft member supporting device of a type in which the end portion on the first case member side of the rotary shaft member protrudes through the inner ring of the second bearing while being abutted to a stepped surface. For example, it is part of a vehicle's power transmission as described in document 1. [Document 1] Japanese Patent Laid-Open No. 9-2 2 6 3 9 2 When assembling the above-described rotary shaft member supporting device, one of the case members constituting the housing, for example, the first case member, has its opening up. Placed in the closed state Then, the first case member side end 35 of the rotary shaft member is fitted into the fitting hole formed in the first case member via the first bearing, and the rotary shaft member is erected, and the next In the state where the second bearing is fitted to the second case member side end portion, that is, the upper end portion, of the rotary shaft member, the second case member whose opening is directed downward is lowered from the upper side, The second bearing is fitted into the large diameter hole provided in the second case member, and the opening of the second case member is combined with the opening of the first case member and fastened with a bolt or the like.
ところで、 上記シムは、 回転軸部材を回転可能に支持する第 1軸受および第 2 軸受に所定のスラスト方向の隙間を埋めるための複数種類の厚み寸法から選択さ れた円環状の板材であって、 第 2軸受の内輪に干渉しないようにその外輪と同様 の径方向寸法を備えて構成されることから、 第 2軸受の上に載置されただけでは シムを芯出しすることができず、 組み付けに際しては、 第 2ケース部材に設けら れた大径穴内に予め嵌め入れられた状態でグリスなどによって貼り着けられる。 このため、 組み付けに際して、 開口が下向きとなるように第 2ケース部材が反転 させられると、 シムがずれたり落下したりして組付作業不能や部品折損を発生さ せるおそれがあった。 また、 落下しないように何らかの方法で第 2ケース部材に 固定するようにすると、 複雑な形状となるという不都合があつた。  By the way, the shim is an annular plate material selected from a plurality of kinds of thickness dimensions for filling a gap in a predetermined thrust direction in the first bearing and the second bearing which rotatably support the rotating shaft member, Since the second bearing has the same radial dimension as the outer ring so as not to interfere with the inner ring, the shim can not be centered only by being placed on the second bearing, At the time of assembly, it is stuck with grease etc. in a state of being fitted in advance in the large diameter hole provided in the second case member. For this reason, when the second case member is turned over so that the opening is directed downward during assembly, the shim may be displaced or dropped, which may cause assembly inoperability or breakage of parts. In addition, if it is fixed to the second case member in some way so as not to fall, there is a disadvantage that the shape becomes complicated.
本発明は以上の事情を背景として為されたものであり、 その目的とするところ は、 回転軸部材の組み付けに際して、 シムがずれたり落下したりしない回転軸部 材支持装置を提供することにある。 発明の開示 かかる目的を達成するための本発明の要旨とするところは、 第 1ケース部材と 第 2ケース部材とを相互の開口が相対向する状態でふさがれるように組み合わせ ることにより構成されるハウジングと、 そのハウジング内において該第 1ケース 部材と第 2ケース部材とに第 1軸受および第 2軸受を介してそれぞれ回転可能に 支持される回転軸部材とを備え、 その第 2ケース部材には、 小径穴とその小径穴 と同心でその小径穴よりも大径である大径穴とから成る段付穴が形成され、 前記 第 1軸受の外輪はその大径穴に嵌合され且つシムを介してその大径穴と前記小径 穴との間の段付面に当接させられ、 前記回転軸部材の第 2ケース部材側端部はそ の第 2軸受の内輪を通して突き出す形式の回転軸部材支持装置であつて、 前記シ ムは、 前記第 2軸受の外輪と前記段付面との間で挟持される被挟持部と、 その被 挟持部に一体的に設けられて組付時に前記第 I軸受の外輪上に載置されたとき該 第 2軸受を貫通する前記回転軸部材の第 1ケース部材側端部に対して芯出しをす る芯出部とを備えることにある。 The present invention has been made against the background described above, and an object of the present invention is to provide a rotating shaft member supporting device which prevents the shims from shifting or falling when assembling the rotating shaft member. . DISCLOSURE OF THE INVENTION The gist of the present invention for achieving the above object is configured by combining the first case member and the second case member such that the openings are closed with each other facing each other. A housing and a rotary shaft member rotatably supported by the first case member and the second case member in the housing via the first bearing and the second bearing, and the second case member is provided in the housing. , Small diameter holes and their small diameter holes And the large diameter hole having a diameter larger than that of the small diameter hole, and the outer ring of the first bearing is fitted to the large diameter hole and is inserted into the large diameter hole via the shim. The second case member side end portion of the rotating shaft member is a rotating shaft member supporting device of a type which protrudes through the inner ring of the second bearing, being abutted to a stepped surface between the small diameter hole and the second bearing member. The shim is integrally provided on a pinched portion held between the outer ring of the second bearing and the stepped surface, and the pinched portion, and is mounted on the outer ring of the first bearing at the time of assembly. And a centering portion for centering the first case member side end portion of the rotary shaft member which penetrates the second bearing when it is placed.
このようにすれば、 シムは、 前記第 2軸受の外輪と前記段付面との間で挟持さ れる被挟持部を備えるとともに、 それに加えて、 その被挟持部に一体的に設けら れて組付時に前記第 2軸受の外輪上に載置されたとき該第 1軸受を貫通する前記 回転軸部材の第 2ケース部材側端部に対して芯出しをする芯出部を備えているこ とから、 回転軸部材支持装置の組み付けに際して、 第 1ケース部材に立設された 回転軸部材の第 1ケース部材側端部に嵌め着けられた第 1軸受上にシムが載置さ れると、 そのシムの芯出部によってシムが回転軸部材に対して芯出しされるので 、 シムがずれたり落下したりすることがなくなり、 予めシムをグリスなどで第 2 ケース部材の大径穴内に張り付ける必要がなくなって、 組付作業不能や部品折損 を発生させるおそれが角军消される。  According to this configuration, the shim includes the pinched portion pinched between the outer ring of the second bearing and the stepped surface, and is additionally provided integrally with the pinched portion. A centering portion for centering the second case member side end portion of the rotary shaft member penetrating through the first bearing when mounted on the outer ring of the second bearing at the time of assembly is provided. And, when the rotary shaft member supporting device is assembled, when the shim is placed on the first bearing that is fitted to the first case member side end of the rotary shaft member erected on the first case member, Since the shim is centered on the rotary shaft member by the centering portion of the shim, the shim does not shift or fall off, and the shim is attached in advance to the large diameter hole of the second case member with grease or the like. Eliminates the need for assembly work and causes breakage of parts It is the corner 军消.
ここで、 好適には、 前記シムは、 前記被挟持部としての円環状の外周部と、 該 外周部の内周側に一体的に設けられて前記回転軸部材の第 2ケース部材側端部の 径ょりもわずかに大きい径の位置決め穴を有する内周部とを備えるものである。 このようにすれば、 シム構造が簡単となる。 また好適には、 その内周部には、 潤 滑油を容易に貫通させるための複数個の油穴が設けられる。  Here, preferably, the shim is integrally provided on an annular outer peripheral portion as the held portion, and on an inner peripheral side of the outer peripheral portion, and the second case member side end portion of the rotating shaft member And an inner circumferential portion having a slightly larger diameter positioning hole. This will simplify the shim structure. Also preferably, the inner circumferential portion is provided with a plurality of oil holes for facilitating penetration of lubricating oil.
また、 好適には、 前記回転軸部材の第 2ケース部材側端部は、 前記第 2軸受の 内周輪を貫通させられるとともに前記小径穴内に受け入れられるものであり、 前記シムの位置決め穴の径を D 1、 該シムの外径を D 2、 該シムの内周部の厚 みを t、 前記回転軸部材の第 2ケース部材側端部の径を d、 前記小径穴の径を D 3、 前記回転軸部材の第 2ケース部材側端部に嵌められた前記シ厶の傾斜角を Θ とするとき、 次式（1) および (2) を満足するものである。 このようにすれば、 た とえシムの嵌め入れ作業にばらつきが生じて斜めとされても、 シムが小径穴内に 嵌め入れられない角度となる利点がある。 In addition, preferably, the second case member side end of the rotary shaft member penetrates the inner peripheral ring of the second bearing and is received in the small diameter hole, and the diameter of the positioning hole of the shim D 1, the outer diameter of the shim D 2, the thickness of the inner peripheral portion of the shim t, the diameter of the second case member end of the rotary shaft member d, the diameter of the small diameter hole D 3 An inclination angle of the wedge fitted to the second case member side end of the rotary shaft member; In this case, the following equations (1) and (2) are satisfied. In this way, there is an advantage that the angle at which the shim can not be fitted into the small diameter hole can be obtained even if the shim fitting operation varies due to variations.
t - tan Θ = Ό 1一 d /cos θ · · · (1)  t-tan Θ = Ό 1 1 d / cos θ · · · · (1)
D 3 < D 2 cos Θ · · · (2)  D 3 <D 2 cos Θ · · · · (2)
また、 好適には、 前記シムの内周部の前記第 2軸受の内輪と対向する面は、 該 内輪との千渉を回避するために該シ厶の外周部よりも前記第 2ハウジング側へ変 形させられているものである。 このようにすれば、 シムと第 2軸受の内輪との干. 渉が好適に防止される。  Preferably, the surface of the inner peripheral portion of the shim facing the inner ring of the second bearing is closer to the second housing than the outer peripheral portion of the ridge in order to avoid interference with the inner ring. It has been transformed. In this way, interference between the shim and the inner ring of the second bearing is preferably prevented.
また、 好適には、 前記シムの内周部は該シムの外周部よりも小さな厚みであつ て、 そのシムはその厚み方向の中心線に対して対象となる断面形状を備えたもの である。 このようにすれば、 シムの裏表がなくなり、 誤った作業が防止されて作 業が容易となる。 図面の簡単な説明 図 1は、 本発明の回転軸部材支持装置が適用されたハイプリッ ド車両用動力伝 達装置の組立状態を示す図である。  In addition, preferably, the inner circumferential portion of the shim has a smaller thickness than the outer circumferential portion of the shim, and the shim has a cross-sectional shape that is a target with respect to a center line in the thickness direction. In this way, the back and forth of the shims will be lost, and incorrect work will be prevented and work will be easier. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an assembled state of a power transmission device for a hybrid vehicle to which a rotating shaft member supporting device of the present invention is applied.
図 2は、 図 1のハイブリッ ド車両用動力伝達装置の要部であつて、 第 1カウン タギヤ軸を回転可能に支持する回転軸部材支持装置に対応する部分の構成を示す 断面図である。  FIG. 2 is a cross-sectional view showing a configuration of a portion corresponding to a rotary shaft member supporting device, which is a main portion of the hybrid vehicle power transmission device of FIG. 1 and rotatably supports the first counter gear shaft.
図 3は、 図 1および図 2に用いられたシムの構成を説明する正面図である。 図 4は、 図 1および図 2に用いられたシムの構成を説明する断面図である。 図 5は、 図 3および図 4のシムの寸法形状を説明する図である。  FIG. 3 is a front view illustrating the configuration of the shim used in FIG. 1 and FIG. FIG. 4 is a cross-sectional view for explaining the configuration of the shim used in FIGS. 1 and 2; FIG. 5 is a view for explaining the dimensions and shape of the shims of FIGS. 3 and 4;
図 6は、 本発明の他の実施例のシムを説明するための要部断面図であって、 図 FIG. 6 is a cross-sectional view of an essential part for explaining a shim according to another embodiment of the present invention.
2の 1部に相当する図である。 FIG. 6 is a diagram corresponding to a part of 2;
図 7は、 本発明の他の実施例のシムを説明するための要部断面図であって、 図 FIG. 7 is a cross-sectional view of an essential part for explaining a shim according to another embodiment of the present invention.
2の 1部に相当する図である。 図 8は、 本発明の他の実施例のシムを説明するための要部断面図であって、 図 2の 1部に相当する図である。 発明を実施するための最良の形態 実施例 1 FIG. 6 is a diagram corresponding to a part of 2; FIG. 8 is a cross-sectional view of an essential part for explaining a shim according to another embodiment of the present invention, which corresponds to a part of FIG. BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1
図 1および図 2は、 本発明の回転軸支持装置が適用された車両用動力伝達装置 1 and 2 show a power transmission apparatus for a vehicle to which the rotary shaft support apparatus of the present invention is applied.
1 0の要部であって、 組付過程を示す図および組付け完了状態をそれぞれ示して- いる。 この車両用動力伝達装置 1 0は、 たとえばハイブリツ ド車両に好適に用い られるものであって、 第 1ケース部材 1 2と第 2ケース部材 1 4とが相互の開口 が相対向する状態で相互にふさがれるように組み合わせることにより構成される ハウジング 1 6を備えている。 このハウジング 1 6の組み立て時には、 図 1に示 すように、 開口が上向きとなるように第 1ケース部材 1 2が図示しない組立台の 上に載置され、 開口が下向きとなるように図示しない吊下げ装置により吊り下げ られて相互の開口が相対向する状態とされ、 この状態で第 2ケース部材 1 4が下 降させられてハウジング 1 6が組み立てられる。 10 is a main part of 10, showing a diagram showing the assembly process and a completed state of assembly. The vehicle power transmission device 10 is suitably used, for example, in a hybrid vehicle, and the first case member 12 and the second case member 14 are mutually opposed with their openings facing each other. It is provided with a housing 16 configured by combining to be closed. When the housing 16 is assembled, as shown in FIG. 1, the first case member 12 is placed on an assembly platform (not shown) with the opening facing upward, and is not shown with the opening facing downward. It is suspended by the suspending device so that the openings are opposite to each other. In this state, the second case member 14 is lowered to assemble the housing 16.
上記第 1ケース部材 1 2内には、 第 1モータジヱネレー夕 1 8と、 その第 1モ 一夕ジェネレータ 1 8に連結されたサンギヤ、 図示しないエンジンに連結された キヤリャ、 第 1スプロケッ 卜 2 0に連結されたリングギヤからなる遊星歯車装置 2 2と、 その第 1スプロケッ ト I 0と伝動チヱ一ン 2 4を介して作動的に連結さ れた第 1カウンタギヤ軸 （回転軸部材） 1 6と、 その第 1カウンタギヤ軸 2 6と 嚙み合う第 2カウンタギヤ軸 2 8と、 その第 2カウンタギヤ軸 2 8と嚙み合う差 動歯車装置 3 0とが、 互いに平行な軸心まわりに回転可能となるように軸受を介 してそれぞれ予め組み付けられている。 第 1カウンタギヤ軸 2 6、 第 2カウンタ ギヤ軸 2 8、 差動歯車装置 3 0は、 それらの軸心方向の両端部に軸受か嵌め着け られており、 第 1ケース部材 1 2側の軸受がその第 1ケース部材 1 2内に設けら れた嵌合穴に嵌め入れられることにより、 第 1ケース部材 1 2内にそれぞれ立設 されている。 第 1カウンタギヤ軸 2 6、 第 2カウンタギヤ軸 2 8、 差動歯車装置 3 0の第 2ケース部材 1 4側の軸受は、 その第 2ケース部材 1 4が下降させられ たときにその第 2ケース部材 1 4内に設けられた嵌合穴に嵌め入れられるように なっている。 In the first case member 12, the first motor generator 18, the sun gear connected to the first motor generator 18, the carrier connected to the engine (not shown), the first sprocket 20, and A planetary gear unit 22 comprising a connected ring gear, and a first counter gear shaft (rotary shaft member) 16 operatively connected via its first sprocket I 0 and the transmission pinion 24 The second counter gear shaft 2 8 that fits with the first counter gear shaft 2 6 and the differential gear device 30 that fits with the second counter gear shaft 2 8 are around the axes parallel to each other. Each is pre-assembled via a bearing so as to be rotatable. The first counter gear shaft 2 6, the second counter gear shaft 2 8, and the differential gear unit 30 are bearing-mounted or fitted at both ends in the axial direction, and the bearing on the first case member 12 side Are respectively erected in the first case member 12 by being fitted into the fitting holes provided in the first case member 12. 1st counter gear shaft 2 6 2nd counter gear shaft 2 8 differential gear When the second case member 14 is lowered, the bearing on the side of the second case member 14 at 30 is fitted into the fitting hole provided in the second case member 14. ing.
図 1に詳しく示すように、 たとえば、 上記第 1力ゥンタギヤ軸 I 6は、 伝動チ ヱ一ン 2 4が巻き掛けられる第 2スプロケッ 卜 3 2と、 第 2カウンタギヤ軸 2 8 と嚙み合うための歯車 3 4とを一体的に備え、 第 1ケース部材 1 2側の軸端には 第 1軸受 3 6が嵌め着けられ、 第 2ケース部材 1 4側の軸端には第 2軸受 3 8が 嵌め着けられている。 第 1カウンタギヤ軸 2 6の第 2ケース部材 1 4側端部はそ. の第 2軸受 3 8の内輪 3 8 uを通して突き出している。 上記第 1カウンタギヤ軸 2 6は円管状を成しており、 潤滑油の流れを導くために第 2ケース部材 1 4から 突設された突起 4 8がその第 1カウンタギヤ軸 2 6の第 2ケース部材 1 4側の中 央穴内に差し入れられている。  As shown in detail in FIG. 1, for example, the first force gear shaft I 6 is in mesh with the second sprocket 32 2 on which the transmission gear 24 is wound and the second counter gear shaft 2 8 A first bearing 36 is fitted to the shaft end on the first case member 12 side, and a second bearing 3 is attached to the shaft end on the second case member 14 side. 8 is attached. The second case member 14 of the first counter gear shaft 26 has a side end projecting out through the inner ring 38 u of the second bearing 38 thereof. The first counter gear shaft 26 is in the form of a circular tube, and the projection 48 provided from the second case member 14 for guiding the flow of lubricating oil is the first of the first counter gear shaft 26. 2 Case member 14 Inserted into the center hole on the 4 side.
第 2ケース部材 1 4が下降させられたときにその第 2軸受 3 8が嵌め着けられ るように第 2ケース部材 1 4内に設けられた嵌合穴 4 0は、 小径穴 4 2とその小 径穴 4 2と同心でその小径穴 4 2よりも大径である大径穴 4 4とから成る段付穴 から構成されている。 組付完了時には、 第 2軸受 3 8の外輪 3 8 sがその大径穴 The fitting hole 40 provided in the second case member 14 so that the second bearing 38 is fitted when the second case member 14 is lowered is a small diameter hole 42 and its hole 42 It is composed of a stepped hole consisting of a large diameter hole 44 concentric with the small diameter hole 42 and having a diameter larger than that of the small diameter hole 42. When assembling is complete, the outer ring 3 8 s of the second bearing 3 8 is its large diameter hole
4 4に嵌合されるとともに、 組付前に第 2軸受 3 8の上に載置されたシム 5 0介 して上記大径穴 4 4と小径穴 4 2との間の段付面 4 6に当接させられるようにな つている。 本実施例では、 第 1ケース部材 1. 2および第 2ケ一ス部材 1 4と、 そ れらに嵌め付けられた第 1軸受 3 6および第 2軸受 3 8とが、 第 1カウンタギヤ 軸 2 6を回転可能に支持するための回転軸部材支持装置に対応している。 A stepped surface between the large diameter hole 4 4 and the small diameter hole 4 2 through a shim 50 placed on the second bearing 3 8 before being assembled while being fitted to the 4 4. It comes to be able to abut on 6). In this embodiment, the first case member 1.2 and the second case member 14 and the first bearing 36 and the second bearing 38 fitted to them are the first counter gear shaft It corresponds to a rotating shaft member supporting device for rotatably supporting the 26.
上記シム 5 0は、 図 3および図 4に詳しく示すように円環板状を成し、 第 2軸 受 3 8の外輪 3 8 sと段付面 4 6との間で挟持あるいは挟圧される外周部すなわ ち被挟持部 5 2と、 その被挟持部 5 2の内周側に一体的に設けられて組付時に第 2軸受 3 8の外輪 3 8 s上に載置されたときその第 2軸受 3 8を貫通する第 1力 ゥンタギヤ軸 2 6の第 2ケース部材 1 4側軸端部に対して芯出しをするための内 周部である芯出部 5 4とを備えている。 この芯出部 5 4は、 第 1カウン夕ギヤ軸 2 6の第 2ケース部材 1 4側軸端部に対して芯出しをするためにその外径よりも 僅かに大きく第 1ケース部材 1 2と第 2ケース部材 1 4とが組み合わされた後に はカウンタ軸 2 6と干渉しない程度の径の位置決め穴すなわち中心穴 5 .6と、 第 2軸受 3 8の内輪 3 8 uとの緩衝を回避するためにシム 5 0の外周部である被挟 持部 5 2よりも小さな厚みと、 潤滑油の移動を阻害しないための複数個 （本実施 例では 8個） の貫通穴 5 8とを備えている。 また、 上記シム 5 0は、 その厚み方 向の中心線 Cに対して対象となる断面形状を備えている。 The shim 50 has an annular plate shape, as shown in detail in FIGS. 3 and 4, and is held or clamped between the outer ring 38s of the second bearing 38 and the stepped surface 46. The outer circumference, ie, the pinched portion 52, and the inner circumferential side of the pinched portion 52 are integrally formed and mounted on the outer ring 3 8 s of the second bearing 38 at the time of assembly. The second force bearing gear shaft 26 is provided with a centering portion 54 which is an inner peripheral portion for centering with respect to an end portion on the side of the 4th shaft of the 1st force counter gear shaft 2 6 penetrating the second bearing 3 8 There is. The centering portion 54 is larger than the outer diameter of the first case gear shaft 26 so as to center the second case member 14. After the combination of the first case member 12 and the second case member 14 slightly larger, a positioning hole or central hole 5.6 having a diameter that does not interfere with the counter shaft 26 and the second bearing 38 In order to avoid buffer with the inner ring 38 u, the thickness is smaller than that of the support portion 52 which is the outer peripheral portion of the shim 50, and a plurality of them (in the present embodiment, eight) for preventing movement of the lubricating oil. ) Through holes 5 and 8). Further, the shim 50 has a cross-sectional shape that is a target with respect to the center line C in the thickness direction.
また、 図 5に示すように、 上記シム 5 0において、 そのシム 5 0の位置決め穴 として機能する中心穴 5 6の径を D 1、 そのシム 5 0の外径すなわち被挟持部 5 + 2の外径を D 2、 そのシム 5 0の内周部すなわち芯出部 5 4の厚みを t、 前記第 1カウンタギヤ軸 2 6の第 2ケース部材 1 4側軸端部の径を d、 前記小径穴 4 2 の内径を D 3、 第 1 カウンタギヤ軸 2 6の第 2ケース部材 1 4側軸端部に嵌めら れたときのシム 5 0の傾斜角を 0とするとき、 次式（1) および (2) を満足するよ うに、 中心穴 5 6の径 D 1、 被挟持部 5 2の外径 D 2、 芯出部 5 4の厚み t、 第 1カウンタギヤ軸 2 6の第 2ケース部材 1 4側軸端部の径 d、 小径穴 4 2の内径 D 3がそれぞれ設定され形成されている。 t - tan Θ = Ό 1 - d /cos θ · · · (1)  Further, as shown in FIG. 5, in the shim 50, the diameter of the central hole 56 functioning as a positioning hole of the shim 50 is D1, and the outer diameter of the shim 50, that is, the pinched portion 5 + 2. The outer diameter is D2, the thickness of the inner peripheral portion of the shim 50, ie, the centering portion 54, is t, the diameter of the second case member 14 side shaft end of the first counter gear shaft 26 is d, Assuming that the inner diameter of the small diameter hole 4 2 is D 3 and the inclination angle of the shim 50 is 0 when it is fitted to the 2nd case member 1 4 side shaft end of the 1st counter gear shaft 2 6, the following equation 1) and (2), the diameter D1 of the center hole 56, the outer diameter D2 of the held portion 52, the thickness t of the centering portion 54, the first counter gear shaft 26 2 Case member 1 The diameter d of the 4th shaft end and the inner diameter D 3 of the small diameter hole 4 2 are set and formed respectively. t-tan Θ = Ό 1-d / cos θ · · · · (1)
D 3 < D 2 cos Θ · · · (2) 上記シム 5 0は、 その挟持部 5 2が複数種類の厚みを備えたものが予め用意さ れ、 最も適した厚みが選択されて用いられる。 たとえば、 第 1ケース部材 1 2の 組合せ面 F 1から第 2軸受 3 8の外輪 3 8 sまでの高さ H 1が測定されるととも に、 第 ケース部材 1 4の組合せ面 F 1から段付面 4 6までの高さ H 2が測定さ れ、 それら高さの差 Δ Η ( = H 2 - H 1 ) に対応するシム 5 0が選択されて用い られる。 通常、 被挟持部 5 2の厚みが上記 Δ Ηと同じか或いは Δ Ηよりも僅かに 小さな厚みを有するシム 5 0が選択される。  D 3 <D 2 cos Θ · · · (2) the shim 5 0, the clamping portion 5 2 is prepared in advance that includes a plurality of types of thickness, most suitable thickness is selected and used. For example, the height H 1 from the combination face F 1 of the first case member 12 to the outer ring 3 8 s of the second bearing 3 8 is measured, and the step from the combination face F 1 of the first case member 14 is The height H 2 up to the surface 46 is measured, and the shim 50 corresponding to the difference in height ΔΗ (= H 2 − H 1) is selected and used. Usually, a shim 50 having a thickness which is the same as or slightly smaller than the above-mentioned Δ 選 択 is selected.
以上のように構成された車両用動力伝達装置 1 0では、 シム 5 0は、 第 2軸受 3 8の外輪 3 8 sと段付面 4 6との間で挟持される被挟持部 5 2を備えるととも に、 それに加えて、 その被挟持部 5 2の内周側に一体的に設けられて組付時に第 2軸受 3 8の外輪 3 8 s上に載置されたときその第 2軸受 3 8の内輪 3 8 uを貫 通する第 1力ゥンタギヤ軸 2 6の第 2ケース部材 1 4側軸端部に対して芯出しを する芯出部 5 4を備えていることから、 回転軸部材支持装置の組み付けに際して 、 第 1ケース部材 1 2に立設された第 1 カウンタギヤ軸 2 6の第 2ケース部材 1 4側軸端部に嵌め着けられた第 2軸受 3 8の外輪 3 8 s上にシム 5 0が載置され ると、 そのシム 5 0の芯出咅 5 4によってシム 5 0が第 1カウン夕ギヤ軸 2 6に 対して芯出しされるので、 シム 5 0がずれたり或いは落下したりしないすること がなくなり、 予めシム 5 0をグリスなどを用いて第 2ケース部材 1 4の大径穴 4 4内に張り付ける必要がなくなって、 組付作業不能や部品折損を発生させるおそ れが解消される。 In the power transmission system 10 for a vehicle configured as described above, the shim 50 includes a support portion 52 that is held between the outer ring 3 8 s of the second bearing 3 8 and the stepped surface 46. With In addition to that, it is integrally provided on the inner peripheral side of the clamped portion 52 and is mounted on the outer ring 3 8 s of the second bearing 3 8 at the time of assembly. Since a centering portion 54 for centering the second case member 14 of the first force gear shaft 26 of the first force gear shaft 26 passing through the inner ring 38 u is provided, the rotary shaft member supporting device When assembling the first case member 12, the second case member of the first counter gear shaft 26 erected on the first case member 12, the second bearing of the fourth bearing fitted to the end of the four-side shaft, and the outer ring 38s of 8s. When the shim 50 is placed, the shim 50 of the shim 50 is centered with respect to the first coin gear shaft 26 by the centering lever 54 of the shim 50, so the shim 50 may be displaced or dropped. There is no need to attach the shim 50 in advance, and it is not necessary to attach the shim 50 in advance to the large diameter hole 4 4 of the second case member 14 using grease etc. Re emesis for generating component breakage can be eliminated.
また、 本実施例では、 シム 5 0は、 円環状の外周部である被挟持部 5 2と、 そ の被挟持部 5 2の内周側に一体的に設けられて第 1 カウンタギヤ軸 2 6の第 2ケ —ス部材 1 4側軸端部の径 dよりもわずかに大きい径 D 1の中心穴 （位置決め穴 ) 5 6を有する芯出部 5 4とを備えるものであることから、 シム 5 0の構造が簡 単となる。 また、 その芯出部 5 4には、 潤滑油を容易に貫通させるための複数個 の貫通穴 （油穴） 5 8が設けられているので、 潤滑油の流通が確保される。 また、 本実施例では、 第 1 カウンタギヤ軸 2 6の第 2ケース部材 1 4側軸端部 は、 第 2軸受 3 8の内周輪 3 8 uを貫通させられるとともに小径穴 4 2内に受け 入れられるものであり、 シム 5 0の位置決め用中央穴 5 6の内径を D 1、 シム 5 0の外径を D 2、 シム 5 0の内周部である芯出部 5 4の厚みを t、 前記回転軸部 材の第 1ケース部材側端部の径を d、 前記小径穴の径を D 3、 第 1カウンタギヤ 軸 2 6の第 2ケース部材 1 4側軸端部に嵌められたシム 5 0の傾斜角を 0とする とき、 前記式（1) および (2) を満足するものであることから、 たとえシム 5 0の 嵌め入れ作業にばらつきが生じて組付けに際して斜めの状態とされても、 シム 5 0が小径穴 4 2内に嵌め入れられない角度となる利点がある。  Further, in the present embodiment, the shim 50 is integrally provided on the inner peripheral side of the held portion 52 which is an annular outer peripheral portion and the held portion 52, and the first counter gear shaft 2 Since the second case member 6 of 6 has a center hole (positioning hole) 56 with a diameter D 1 slightly larger than the diameter d of the 4-side shaft end, the centering portion 54 has The structure of shim 50 becomes simple. Further, since the centering portion 54 is provided with a plurality of through holes (oil holes) 58 for allowing the lubricating oil to easily penetrate, circulation of the lubricating oil is secured. Further, in the present embodiment, the second case member 14 side shaft end of the first counter gear shaft 26 penetrates the inner peripheral ring 38 u of the second bearing 38 and the small diameter hole 42. The inner diameter of the centering hole 56 for positioning the shim 50 is D1, the outer diameter of the shim 50 is D2, the thickness of the centering portion 54 which is the inner periphery of the shim 50 is t, the diameter of the first case member side end of the rotary shaft member is d, the diameter of the small diameter hole is D3, and the second case member of the first counter gear shaft 26 is fitted to the 14 side shaft end of the first counter gear shaft Since the above equations (1) and (2) are satisfied when the inclination angle of the shim 50 is set to 0, even if the fitting operation of the shim 50 varies, the state of slanting at the time of assembling becomes oblique. Even if it is, there is an advantage that the shim 50 can not be fitted into the small diameter hole 42.
また、 本実施例では、 シム 5 0の内周部の第 2軸受 3 8の内輪 3 8 uと対向す る面すなわち芯出部 5 4の第 2軸受 3 8側表面は、 その内輪 3 8 uとの干渉を回 避するためにシム 5 0の被挟持部 （外周部） 5 2よりも第 2ケース部材 1 4側へ 変形させられているので、 シム 5 0と第 2軸受 3 8の内輪 3 8 uとの干渉が好適 に防止される。 In the present embodiment, the surface of the inner periphery of the shim 50 facing the inner ring 3 8 u of the second bearing 3 8, that is, the second bearing 3 8 side surface of the centering portion 5 4 is the inner ring 3 8 interference with u turn The second case member 14 is deformed to the second case member 14 side more than the pinched portion (peripheral portion) 52 of the shim 50 in order to avoid the shim 50 and the inner ring 3 8 u of the second bearing 3 8 with the shim 50. Interference is preferably prevented.
また、 本実施例では、 シム 5 0の内周部である芯出部 5 4はシム 5 0の外周部 よりである被挟持部 5 2も小さな厚みであって、 そのシ厶 5 0はその厚み方向の 中心線 C対して対象となる断面形状を備えたものであることから、 シム 5 0の裏 表がなくなり、 誤った作業が防止されて作業の信頼性が高められるとともに、 作 業が容易となつて作業能率が高められる。 実施例 2  Further, in the present embodiment, the centering portion 54, which is the inner peripheral portion of the shim 50, has a smaller thickness than the pinched portion 52, which is the outer peripheral portion of the shim 50. With the cross-sectional shape targeted to the center line C in the thickness direction, the front and back surfaces of the shim 50 are eliminated, so that erroneous work is prevented, work reliability is enhanced, and the work is simplified. The work efficiency is enhanced because it is easy. Example 2
次に、 本発明の他の実施例を説明する。 なお、 以下の説明において前述の実施 例と共通する部分には同一の符号を付して説明を省略する。  Next, another embodiment of the present invention will be described. In the following description, parts common to the above-described embodiment are assigned the same reference numerals and explanations thereof will be omitted.
図 6は、 本発明の他の実施例のシム 6 0が第 2軸受 3 8の外輪 3 8 sと段付面 4 6との間で挟持されている状態を示している。 シム 6 0は、 円環状の被挟持部 6 2と、 その内側において第 1ケース部材 1 4側へ所定寸法だけずらされた状態 で一体的に設けられた芯出部 6 4とを備えている。 このシム 6 0は、 その内周部 である芯出部 6 4の第 2軸受 3 8側表面すなわち第 2軸受 3 8の内輪 3 8 uと対 向する面は、 その内輪 3 8 uとの干渉を回避するためにシム 6 0の被挟持部 （外 周部） 6 2よりも第 2ケース部材 1 4側へ変形させられているので、 前述の実施 例と同様の効果が得られる。 また、 本実施例によれば、 シム 6 0はたとえば一枚 の円板に塑性加工 （プレス加工） を施すことにより簡単に製造でき、 安価となる 利点がある。 実施例 3  FIG. 6 shows a state in which the shim 60 according to another embodiment of the present invention is held between the outer ring 3 8 s of the second bearing 3 8 and the stepped surface 46. The shim 60 includes an annular grip portion 62 and a centering portion 64 integrally provided on the inner side thereof in a state of being shifted by a predetermined dimension toward the first case member 14 side. . The surface of the shim 60 facing the inner ring 3 8 u of the second bearing 3 8 of the centering portion 64 which is the inner peripheral portion, ie, the inner ring 3 8 u of the second bearing 3 8 is the inner ring 3 8 u In order to avoid interference, the second case member 14 is deformed to the side of the held portion (outer peripheral portion) 62 of the shim 60, so that the same effect as the above-described embodiment can be obtained. Further, according to the present embodiment, the shim 60 can be easily manufactured, for example, by subjecting a single disc to plastic working (pressing), which is advantageous in that it is inexpensive. Example 3
図 7のシム 7 0は、 前述のシム 5 0或いは 6 0の円環状の被挟持部 5 2或いは 6 2に対応する形状を備えたものであり、 シム 7 0と第 2軸受 3 8の内輪 3 8 u との間の緩衝を防止するために、 第 2軸受 3 8の外輪 3 8 sの軸心方向寸法が内 輪 3 8 uよりも大きく形成されている。 実施例 4 The shim 70 in FIG. 7 has a shape corresponding to the annular pinched portion 52 or 62 of the shim 50 or 60 described above, and the inner ring of the shim 70 and the second bearing 3 8 In order to prevent buffer between 3 8 u, the axial dimension of the outer ring 3 8 s of the second bearing 3 8 is formed larger than the inner ring 3 8 u. Example 4
図 8のシム 8 0は、 前述のシム 5 0或いは 6 0の円環状の被挟持部 5 2或いは 6 2に対応する形状であって、 被挟持部 5 2或いは 6 2の外周縁から軸心方向に 直角に曲成された円環状突起 8 2を備えるとともに、 第 2軸受 3 8の外輪 3 8 s の外周緣には、 その円環状突起 8 2と係合する円環状の溝 8 4が形成されている 。 本実施例のシム 8 0では、 その円環状突起 8 2と第 2軸受 3 8の外輪 3 8 sに 形成された円環状の溝 8 4との係合によって芯出しが行われる。 なお、 上記円環- 状突起 8 2は被挟持部 5 2或いは 6 2の内周縁から軸心方向に直角に曲成され、 第 2軸受 3 8の外輪 3 8 sの内周緣には、 その円環状突起 8 2と係合する円環状 の溝 8 4が形成されてもよい。 ' 以上、 本発明の好適な実施例を図面に基づいて詳細に説明したが、 本発明はこ れに限定されるものではなく、 更に別の態様においても実施される。  The shim 80 in FIG. 8 has a shape corresponding to the annular pinched portion 52 or 62 of the shim 50 or 60 described above, and has an axial center from the outer peripheral edge of the pinched portion 52 or 62 An annular groove 84, which engages with the annular projection 82, is provided with an annular projection 82 bent at a right angle to the direction, and in the outer periphery of the outer ring 3 8 s of the second bearing 3 8 It is formed. In the shim 80 of this embodiment, centering is performed by the engagement of the annular projection 82 and the annular groove 84 formed in the outer ring 3 8 s of the second bearing 3 8. The annular projection 82 is bent at a right angle in the axial direction from the inner peripheral edge of the clamped portion 52 or 62, and the inner periphery of the outer ring 38s of the second bearing 38 is An annular groove 84 may be formed to engage the annular projection 82. Although the preferred embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited thereto, and may be embodied in other aspects.
例えば、 前述の実施例では、 ハイプリッ ド車両に用いられる車両用動力伝達装 置 1 0に適用された回転軸部材支持装置が説明されていたが、 自動変速機、 無段 変速機、 トランスファ装置など、 他の装置に適用されてもよい。  For example, in the above-described embodiment, the rotary shaft member supporting device applied to the vehicle power transmission device 10 used in the hybrid vehicle has been described. However, an automatic transmission, a continuously variable transmission, a transfer device, etc. , It may apply to other devices.
また、 前述の実施例では、 回転軸部材として第 1力ゥンタギヤ軸 2 6が説明さ れていたが、 他の目的或いは機能を達成するための回転軸であってもよい。  Further, in the above-described embodiment, the first force gear shaft 26 is described as the rotating shaft member, but it may be a rotating shaft for achieving other purposes or functions.
また、 前述の実施例のシム 5 0、 6 0などでは、 円環状の被挟持部 5 2 , 6 2 および芯出部 5 4、 6 4が備えられていたが、 完全に円環状でなくてもよく、 断 続的な円環状であってもよい。  Moreover, in the shims 50, 60, etc. of the above-mentioned embodiment, although the annular pinched portions 52, 62 and the centering portions 54, 64 are provided, they are not completely annular. It may be continuous or annular.
その他、一々例示はしないが、 本発明はその趣旨を逸脱しない範囲内において 、 種々の変更が加えられて実施されるものである。  In addition, although not illustrated one by one, the present invention is to be implemented with various modifications added thereto without departing from the scope of the invention.

Claims

請求の範囲 第 1ケース部材と第 1ケース部材とを相互の開口が相対向する状態でふさが れるように組み合わせることにより構成されるハウジングと、 該ハウジング内に おいて該第 1ケース部材と第 ケース部材とに第 1軸受および第 1軸受を介して それぞれ回転可能に支持される回転軸部材とを備え、 該第 2ケース部材には、 小 径穴と該小径穴と同心で該小径穴よりも大径である大径穴とから成る段付穴が形 成され、 前記第 2軸受の外輪は該大径穴に嵌合され且つシムを介して該大径穴と · 前記小径穴との間の段付面に当接させられ、 前記回転軸部材の第 2ケース部材側 端部は該第 1軸受の内輪を通して突き出す形式の回転軸部材支持装置であつて、 前記シムは、 前記第 2軸受の外輪と前記段付面との間で挟持される被挟持部と 、 該被挟持部に一体的に設けられて組付時に前記第 1軸受の外輪上に載置された とき該第 2軸受を貫通する前記回転軸部材の第 1ケース部材側端部に対して芯出 しをする芯出部とを備えることを特徴とする回転軸部材支持装置。  A housing configured by combining a first case member and a first case member so as to be closed in a state in which the openings face each other, and the first case member and the first case in the housing And a rotary shaft member rotatably supported via the first bearing and the first bearing, wherein the second case member is concentric with the small diameter hole and the small diameter hole and is smaller than the small diameter hole. A stepped hole comprising a large diameter hole having a large diameter is formed, and the outer ring of the second bearing is fitted to the large diameter hole and interposing the shim between the large diameter hole and the small diameter hole A second case member side end portion of the rotary shaft member is a rotary shaft member supporting device of a type which protrudes through an inner ring of the first bearing, and the shim is a second bearing A pinched portion pinched between the outer ring and the stepped surface; When mounted on the outer ring of the first bearing, the core portion is integrally formed with the first bearing member at the time of assembly, and is centered on the first case member side end of the rotary shaft member passing through the second bearing. A rotating shaft member supporting device comprising:
2 . 前記シムは、 前記被挟持部としての円環状の外周部と、 該外周部の内周側に 一体的に設けられて前記回転軸部材の第 2ケース部材側端部の径ょりもわずかに 大きレ、径の位置決め穴を有する内周部とを備えることを特徴とする回転軸部材支 持装置。  2. The shim is provided integrally with an annular outer peripheral portion as the held portion and an inner peripheral side of the outer peripheral portion, and the diameter of the second case member side end portion of the rotary shaft member is also reduced. A rotary shaft member supporting device comprising: a slightly large reed; and an inner circumferential portion having a diameter positioning hole.
3 . 前記回転軸部材の第 2ケース部材側端部は、 前記第 2軸受の内周輪を貫通さ せられるとともに前記小径穴内に受け入れられるものであり、  3. The second case member side end of the rotary shaft member is to be penetrated through the inner peripheral ring of the second bearing and received in the small diameter hole,
前記シムの位置決め穴の径を D 1、 該シムの外径を D 2、 該シムの内周部の厚 みを t、 前記回転軸部材の第 2ケース部材側端部の径を d、 前記小径穴の径を D The diameter of the positioning hole of the shim is D 1, the outer diameter of the shim is D 2, the thickness of the inner peripheral portion of the shim is t, the diameter of the second case member side end of the rotary shaft member is d, The diameter of the small diameter hole D
3、 前記回転軸部材の第 2ケース部材側端部に嵌められた前記シムの傾斜角を S とするとき、 次式（1) および (2) を満足するものである請求項 2の回転軸部材支 持装置。 3. The rotary shaft according to claim 2, wherein when the inclination angle of the shim fitted to the second case member side end of the rotary shaft member is S 1, the following equations (1) and (2) are satisfied. Member support device.
t - tan Θ = Ό 1 - d /cos θ · · · (1)  t-tan Θ = Ό 1-d / cos θ · · · · (1)
D 3 < D 2 cos Θ · · · (2)  D 3 <D 2 cos Θ · · · · (2)
4 . 前記シムの内周部の前記第 2軸受の内輪と対向する面は、 該内輪との干渉を 回避するために該シムの外周部よりも前記第 2ハウジング側へ変形させられてい るものである請求項 1乃至 3のいずれかの回転軸部材支持装置。 The surface of the inner periphery of the shim facing the inner ring of the second bearing interferes with the inner ring. The rotating shaft member supporting device according to any one of claims 1 to 3, wherein the rotating shaft member supporting device is deformed toward the second housing more than the outer peripheral portion of the shim in order to avoid it.
5 . 前記シムの内周部は該シムの外周部よりも小さな厚みであって、 該シムはそ の厚み方向の中心線に対して対象となる断面形状を備えたものである請求項 4の 回転軸部材支持装置。  5. The inner circumferential portion of the shim has a smaller thickness than the outer circumferential portion of the shim, and the shim has a cross-sectional shape that is a target with respect to the center line in the thickness direction. Rotary shaft member support device.
6 . 前記シムの内周部は、 潤滑油を流通させるための 1個または複数個の貫通穴 を備えたものである請求項 2乃至 5のいずれかの回転軸部材支持装置。  6. The rotating shaft member supporting device according to any one of claims 2 to 5, wherein an inner circumferential portion of the shim comprises one or more through holes for circulating lubricating oil.
i 2 i 2
PCT/JP2004/012756 2003-08-25 2004-08-25 Rotating shaft member supporting device WO2005019698A1 (en)

Applications Claiming Priority (2)

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JP2003-300412 2003-08-25
JP2003300412A JP2005069379A (en) 2003-08-25 2003-08-25 Rotary shaft member supported device

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