JP2014222069A - Torque transfer device - Google Patents

Torque transfer device Download PDF

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Publication number
JP2014222069A
JP2014222069A JP2013100844A JP2013100844A JP2014222069A JP 2014222069 A JP2014222069 A JP 2014222069A JP 2013100844 A JP2013100844 A JP 2013100844A JP 2013100844 A JP2013100844 A JP 2013100844A JP 2014222069 A JP2014222069 A JP 2014222069A
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Prior art keywords
end joint
outer collar
peripheral surface
serration
frp
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JP2013100844A
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JP6159572B2 (en
Inventor
祐二 片山
Yuji Katayama
祐二 片山
未知宏 小松
Michihiro Komatsu
未知宏 小松
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • F16C3/026—Shafts made of fibre reinforced resin
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/30—Material joints
    • F16C2226/40—Material joints with adhesive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/06—Drive shafts
    • 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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • F16C3/03—Shafts; Axles telescopic

Abstract

PROBLEM TO BE SOLVED: To simplify a structure of a device itself to simplify processing steps.SOLUTION: A torque transfer device includes: an FRP-made cylinder 18 on which an inner peripheral surface 16 fits to a part of a serration part 14 formed on an outer peripheral surface of an end joint 12; and an outer collar 20 that connects the end joint 12 with the FRP-made cylinder 18. The outer collar 20 is made of an annular body having a large diameter part 24 and a small diameter part 26. The large diameter part 24 of the outer collar 20 is joined to an outer peripheral surface of the FRP-made cylinder 18, and the small diameter part 24 of the outer collar 20 is joined to the serration part 14 of the end joint 12.

Description

本発明は、トルクを伝達するトルク伝達装置に関する。   The present invention relates to a torque transmission device that transmits torque.

トルク伝達装置として、例えば、特許文献１には、ＦＲＰ製駆動シャフトが開示されている。図５（ａ）、（ｂ）に示されるように、このＦＲＰ製駆動シャフト１は、ＦＲＰ製円筒（シャフト本体）２と、ＦＲＰ製円筒２の両端部に圧入される金属製の端部ジョイント３と、ＦＲＰ製円筒２の外周面に固定されるアウタカラー４とから構成される。なお、図５（ａ）、（ｂ）では、ＦＲＰ製円筒２の一端部側のみを図示し、他端部側の図示を省略している。   As a torque transmission device, for example, Patent Document 1 discloses an FRP drive shaft. As shown in FIGS. 5A and 5B, the FRP drive shaft 1 includes an FRP cylinder (shaft body) 2 and a metal end joint that is press-fitted into both ends of the FRP cylinder 2. 3 and an outer collar 4 fixed to the outer peripheral surface of the FRP cylinder 2. 5A and 5B, only one end portion side of the FRP cylinder 2 is shown, and the other end portion side is not shown.

このＦＲＰ製駆動シャフト１では、シャフト本体であるＦＲＰ製円筒２に対して端部ジョイント３を固定するために、端部ジョイント３の外周面にセレーション部５が設けられている。また、ＦＲＰ製円筒２の外周面に対してアウタカラー４を固定するために、端部ジョイント３に側面視して小判形状からなる非円形断面軸部６を設けると共に、アウタカラー４に前記非円形断面軸部６と係合する非円形係合穴７を設けている。   In the FRP drive shaft 1, a serration portion 5 is provided on the outer peripheral surface of the end joint 3 in order to fix the end joint 3 to the FRP cylinder 2 which is a shaft body. Further, in order to fix the outer collar 4 to the outer peripheral surface of the FRP cylinder 2, the end joint 3 is provided with a non-circular cross-section shaft portion 6 having a side shape when viewed from the side, and the outer collar 4 has the non-circular shape. A non-circular engagement hole 7 that engages with the circular section shaft portion 6 is provided.

特開２０１１−５２７１９号公報JP 2011-52719 A

しかしながら、特許文献１に開示されたＦＲＰ製駆動シャフト１では、端部ジョイント３に対し、ＦＲＰ製内筒用の固定部（セレーション部５）と、アウタカラー用の固定部（非円形断面軸部６）とをそれぞれ別個に加工する必要があると共に、アウタカラー自体にも特別の加工（非円形係合穴７を設ける加工）をする必要がある。   However, in the FRP drive shaft 1 disclosed in Patent Document 1, with respect to the end joint 3, a FRP inner cylinder fixing portion (serration portion 5) and an outer collar fixing portion (non-circular cross-section shaft portion). 6) need to be processed separately, and the outer collar itself needs to be specially processed (processing to provide the non-circular engagement hole 7).

このため、特許文献１に開示されたＦＲＰ製駆動シャフト１では、加工工程が多くなると共に、装置自体の構成も複雑となる。   For this reason, in the FRP drive shaft 1 disclosed in Patent Document 1, the number of processing steps is increased and the configuration of the apparatus itself is complicated.

本発明は、前記の点に鑑みてなされたものであり、装置自体の構成を簡素化して加工工程を簡略化することが可能なトルク伝達装置を提供することを目的とする。   The present invention has been made in view of the above points, and an object of the present invention is to provide a torque transmission device capable of simplifying the machining process by simplifying the configuration of the device itself.

前記の目的を達成するために、本発明は、一側から他側へトルクを伝達する端部ジョイントと、前記端部ジョイントの外周面に形成されたセレーション部の一部に内周面が嵌合するＦＲＰ（Fiber Reinforced Plastics）製円筒と、前記端部ジョイントと前記ＦＲＰ製円筒とを接続するアウタカラーと、を備えるトルク伝達装置において、前記アウタカラーは、大径部と小径部とを有し、前記アウタカラーの前記大径部を前記ＦＲＰ製円筒の外周面に結合すると共に、前記アウタカラーの前記小径部を前記端部ジョイントの前記セレーション部に結合することを特徴とする。   In order to achieve the above object, the present invention includes an end joint that transmits torque from one side to the other side, and an inner peripheral surface that is fitted to a part of the serration portion formed on the outer peripheral surface of the end joint. A torque transmission device comprising: a combined FRP (Fiber Reinforced Plastics) cylinder; and an outer collar that connects the end joint and the FRP cylinder, wherein the outer collar has a large diameter portion and a small diameter portion. The outer collar has the large diameter portion coupled to the outer peripheral surface of the FRP cylinder, and the outer collar has the small diameter portion coupled to the serration portion of the end joint.

本発明によれば、端部ジョイントとＦＲＰ製円筒との固定、及び、端部ジョイントとアウタカラーとの固定との両方の固定を、端部ジョイントに設けられたセレーション部が担うことにより、端部ジョイントに特別な固定部（図５に示される非円形断面軸部６）を加工することが不要となる。   According to the present invention, the serration portion provided in the end joint bears both the fixing of the end joint and the FRP cylinder and the fixing of the end joint and the outer collar. It is not necessary to process a special fixing part (non-circular cross-section shaft part 6 shown in FIG. 5) in the part joint.

従って、本発明では、端部ジョイントのセレーション部の一部とその一部を除いたセレーション部の残部とにより、端部ジョイントとＦＲＰ製円筒との固定、及び、端部ジョイントとアウタカラーとの固定を完了することができ、端部ジョイントに対する加工工程を従来技術と比較して削減することができる。また、本発明では、従来技術のようにアウタカラー自体への特別な加工（非円形係合穴７を設ける加工）が不要となるため、より一層加工工程を削減することができる。この結果、本発明では、装置自体の構成を簡素化して加工工程を簡略化することができる。   Therefore, in the present invention, the end joint and the FRP cylinder are fixed by the part of the serration part of the end joint and the remaining part of the serration part excluding the part, and the end joint and the outer collar. Fixing can be completed and the processing steps for the end joints can be reduced compared to the prior art. Further, according to the present invention, since the special processing (processing for providing the non-circular engagement hole 7) to the outer collar itself as in the prior art is not required, the processing steps can be further reduced. As a result, in the present invention, the configuration of the apparatus itself can be simplified to simplify the machining process.

また、本発明は、前記大径部は、円筒状のスリーブを有し、前記スリーブは、前記端部ジョイントの軸線と略平行に延在し、前記スリーブの内周面と前記セレーション部の外径面との間に前記ＦＲＰ製円筒の端部が介装されることを特徴とする。   Further, according to the present invention, the large-diameter portion has a cylindrical sleeve, and the sleeve extends substantially parallel to the axis of the end joint, and the outer peripheral surface of the sleeve and the outer surface of the serration portion. An end portion of the FRP cylinder is interposed between the diametric surface and the radial surface.

本発明によれば、例えば、組付時にＦＲＰ製円筒の端部の外周面に接着剤を塗布すると、スリーブの内周面に対しＦＲＰ製円筒の外周面が接着されて固定されると共に、セレーション部の外径面に対しＦＲＰ製円筒の内周面が圧入されて固定される。この結果、ＦＲＰ製円筒の内周側と外周側との両方の固定部により、ＦＲＰ製円筒と端部ジョイントとが強固に固定され、トルク（例えば、回転トルクや捩れトルク等）の伝達を円滑に遂行することができる。   According to the present invention, for example, when an adhesive is applied to the outer peripheral surface of the end portion of the FRP cylinder during assembly, the outer peripheral surface of the FRP cylinder is bonded and fixed to the inner peripheral surface of the sleeve, and the serration The inner peripheral surface of the FRP cylinder is press-fitted and fixed to the outer diameter surface of the part. As a result, the FRP cylinder and the end joint are firmly fixed by the fixing portions on both the inner peripheral side and the outer peripheral side of the FRP cylinder, so that torque (for example, rotational torque, torsion torque, etc.) can be transmitted smoothly. Can be accomplished.

さらに、本発明は、前記アウタカラーの前記小径部と前記端部ジョイントの前記セレーション部との間には、クリアランスが設けられることを特徴とする。   Furthermore, the present invention is characterized in that a clearance is provided between the small diameter portion of the outer collar and the serration portion of the end joint.

本発明によれば、アウタカラーの小径部と端部ジョイントのセレーション部との間に設けられるクリアランスを介して、例えば、接着剤中に含有する気泡を外部に排出することができる。なお、本発明において、「大径部」、「小径部」は、それぞれ、アウタカラーの内径部分をいう。   According to the present invention, for example, bubbles contained in the adhesive can be discharged to the outside through the clearance provided between the small diameter portion of the outer collar and the serration portion of the end joint. In the present invention, “large diameter portion” and “small diameter portion” refer to the inner diameter portion of the outer collar, respectively.

本発明では、装置自体の構成を簡素化して加工工程を簡略化することが可能なトルク伝達装置を得ることができる。   According to the present invention, it is possible to obtain a torque transmission device capable of simplifying the machining process by simplifying the configuration of the device itself.

本発明の実施形態に係るトルク伝達装置の斜視図である。1 is a perspective view of a torque transmission device according to an embodiment of the present invention. 図１に示すトルク伝達装置の分解斜視図である。FIG. 2 is an exploded perspective view of the torque transmission device shown in FIG. 1. （ａ）は、図１に示すトルク伝達装置の軸方向に沿った縦断面図、（ｂ）は、（ａ）の部分拡大縦断面図である。(A) is the longitudinal cross-sectional view along the axial direction of the torque transmission apparatus shown in FIG. 1, (b) is the partial expanded longitudinal cross-sectional view of (a). （ａ）、（ｂ）は、それぞれ、本発明の実施形態に係るトルク伝達装置の組付工程を示す説明図である。(A), (b) is explanatory drawing which respectively shows the assembly | attachment process of the torque transmission apparatus which concerns on embodiment of this invention. （ａ）は、従来技術に係るＦＲＰ製駆動シャフトの一端部の分解斜視図、（（ｂ）は、（ａ）に示すＦＲＰ駆動シャフトの一端部の軸方向に沿った縦断面図である。(A) is a disassembled perspective view of the one end part of the FRP drive shaft which concerns on a prior art, ((b) is a longitudinal cross-sectional view along the axial direction of the one end part of the FRP drive shaft shown to (a).

次に、本発明の実施形態について、適宜図面を参照しながら詳細に説明する。図１は、本発明の実施形態に係るトルク伝達装置の斜視図、図２は、図１に示すトルク伝達装置の分解斜視図、図３（ａ）は、図１に示すトルク伝達装置の軸方向に沿った縦断面図、図３（ｂ）は、図３（ａ）の部分拡大縦断面図である。   Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. 1 is a perspective view of a torque transmission device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the torque transmission device shown in FIG. 1, and FIG. 3A is a shaft of the torque transmission device shown in FIG. FIG. 3 (b) is a partially enlarged longitudinal sectional view of FIG. 3 (a).

図１及び図２に示すように、本発明の実施形態に係るトルク伝達装置１０は、シャフト本体であるＦＲＰ製円筒１８の両端部に、それぞれ同一の端部ジョイント１２がアウタカラー２０を介して配置されている。このため、一方の構成について詳細に説明し、他方の構成について同一の符号を付してその詳細な説明を省略する。   As shown in FIGS. 1 and 2, in the torque transmission device 10 according to the embodiment of the present invention, the same end joints 12 are respectively connected to both ends of an FRP cylinder 18 which is a shaft body via an outer collar 20. Has been placed. For this reason, one structure is demonstrated in detail, the same code | symbol is attached | subjected about the other structure, and the detailed description is abbreviate | omitted.

また、本実施形態では、トルク伝達装置１０の一例として、回転トルクを伝達するドライブシャフトを用いて説明しているが、これに限定されるものではなく、例えば、図示しないプロペラシャフトやスタビライザ等のトルク伝達手段に適用することが可能である。   In the present embodiment, a drive shaft that transmits rotational torque is described as an example of the torque transmission device 10, but the present invention is not limited to this. For example, a propeller shaft, a stabilizer, or the like (not shown) is used. It is possible to apply to torque transmission means.

図２及び図３に示されるように、トルク伝達装置１０は、一側から他側へ回転トルクを伝達する端部ジョイント１２と、端部ジョイント１２の外周面に形成されたセレーション部１４の一部に内周面１６が嵌合するＦＲＰ（Fiber Reinforced Plastics）製円筒（シャフト本体）１８と、端部ジョイント１２とＦＲＰ製円筒１８とを接続するアウタカラー２０とを備えて構成されている。   As shown in FIGS. 2 and 3, the torque transmission device 10 includes an end joint 12 that transmits rotational torque from one side to the other side, and one serration portion 14 formed on the outer peripheral surface of the end joint 12. An FRP (Fiber Reinforced Plastics) cylinder (shaft body) 18 in which the inner peripheral surface 16 is fitted to the part, and an outer collar 20 that connects the end joint 12 and the FRP cylinder 18 are provided.

ＦＲＰ製円筒１８は、貫通孔が形成された中空の円筒体からなり、例えば、炭素繊維を熱硬化性樹脂シート中に含浸させて形成された複数のプリプレグを筒状に巻回して熱硬化させた複数のＣＦＲＰ（Carbon Fiber Reinforced Plastics）層により構成される。なお、短繊維の炭素繊維が樹脂に分散されたものを射出成形して、ＦＲＰ製円筒１８としてもよい。   The FRP cylinder 18 is formed of a hollow cylindrical body having through holes formed therein. For example, a plurality of prepregs formed by impregnating a carbon fiber in a thermosetting resin sheet are wound into a cylindrical shape and thermally cured. And a plurality of CFRP (Carbon Fiber Reinforced Plastics) layers. In addition, it is good also as the cylinder 18 made from FRP by injection-molding what the carbon fiber of the short fiber was disperse | distributed to resin.

端部ジョイント１２は、金属製材料で形成され、中実のロッド状に形成される軸部２２と、軸部２２の軸方向に連続しＦＲＰ製円筒１８の端部の内周面１６内に圧入されるセレーション部１４とから構成される。セレーション部１４の外径面３４には、例えば、三角歯セレーションやインボリュートセレーション等のセレーションが形成される。なお、本実施形態では、セレーション部１４を端部ジョイントの軸方向に沿って一体に形成しているが、これに限定されるものではなく、例えば、セレーション部１４を端部ジョイント１２の軸方向に沿って複数に分割した多数のリング状に構成してもよい。   The end joint 12 is made of a metal material, and is formed into a solid rod-like shaft portion 22, and is continuous in the axial direction of the shaft portion 22 in the inner peripheral surface 16 of the end portion of the FRP cylinder 18. And a serration unit 14 to be press-fitted. On the outer diameter surface 34 of the serration portion 14, for example, serrations such as triangular tooth serration and involute serration are formed. In the present embodiment, the serration portion 14 is integrally formed along the axial direction of the end joint. However, the present invention is not limited to this. For example, the serration portion 14 is formed in the axial direction of the end joint 12. You may comprise in the shape of many rings divided | segmented into multiple along.

アウタカラー２０は、金属製材料で形成され、大径部２４と小径部２６とを有する環状体によって構成される。大径部２４と小径部２６とは、軸方向に沿って一体的に連続して形成される。大径部２４は、比較的に大径な環状体からなり、円形状の大径な開口部２８を有する（図２参照）。なお、本実施形態において、大径部２４とは、アウタカラー２０の内径が比較的に大径な部分、小径部２６とは、アウタカラー２０の内径が比較的に小径な部分を示している。   The outer collar 20 is formed of a metal material and is configured by an annular body having a large diameter portion 24 and a small diameter portion 26. The large diameter portion 24 and the small diameter portion 26 are formed integrally and continuously along the axial direction. The large-diameter portion 24 is made of a relatively large-diameter annular body and has a circular-shaped large-diameter opening 28 (see FIG. 2). In the present embodiment, the large diameter portion 24 indicates a portion where the inner diameter of the outer collar 20 is relatively large, and the small diameter portion 26 indicates a portion where the inner diameter of the outer collar 20 is relatively small. .

大径部２４は、円筒状のスリーブ３０を有し、このスリーブ３０は、端部ジョイント１２の軸線と略平行に延在するように設けられる。スリーブ３０の内周面３２とセレーション部１４の外径面３４との間には、ＦＲＰ製円筒１８の挿入側端部１８ａが介装される環状間隙３６（図４（ｂ）参照）が設けられる。   The large diameter portion 24 has a cylindrical sleeve 30, and the sleeve 30 is provided so as to extend substantially parallel to the axis of the end joint 12. Between the inner peripheral surface 32 of the sleeve 30 and the outer diameter surface 34 of the serration portion 14, an annular gap 36 (see FIG. 4B) in which the insertion side end portion 18 a of the FRP cylinder 18 is interposed is provided. It is done.

小径部２６は、比較的に小径な環状体からなり、円形状の小径な開口部３８を有する（図２参照）。小径部２６の内壁には、図３（ｂ）に示されるように、端部ジョイント１２のセレーション部１４の一部に対して圧入される圧入部４０と、ＦＲＰ製円筒１８の端面と対向する環状側壁４２とが設けられる。アウタカラー２０の小径部２６と端部ジョイント１２のセレーション部１４との間には、後記するクリアランス４４が設けられる。   The small-diameter portion 26 is made of a relatively small-diameter annular body, and has a circular small-diameter opening 38 (see FIG. 2). As shown in FIG. 3B, the inner wall of the small-diameter portion 26 faces the press-fit portion 40 that is press-fitted into a part of the serration portion 14 of the end joint 12 and the end surface of the FRP cylinder 18. An annular side wall 42 is provided. A clearance 44 described later is provided between the small-diameter portion 26 of the outer collar 20 and the serration portion 14 of the end joint 12.

アウタカラー２０の大径部２４は、ＦＲＰ製円筒１８の外周面４６に結合して固定されている。アウタカラー２０の小径部２６は、端部ジョイント１２のセレーション部１４の一部に結合して固定されている。ＦＲＰ製円筒１８の端部は、端部ジョイント１２のセレーション部１４の一部を除いた残部に圧入して固定されると共に、後記する接着剤４８を介してアウタカラー２０のスリーブ３０の内周面３２に接着して固定される（図３（ｂ）参照）。   The large diameter portion 24 of the outer collar 20 is coupled and fixed to the outer peripheral surface 46 of the FRP cylinder 18. The small diameter portion 26 of the outer collar 20 is coupled and fixed to a part of the serration portion 14 of the end joint 12. The end portion of the FRP cylinder 18 is press-fitted and fixed to the remaining portion of the end joint 12 excluding a portion of the serration portion 14, and the inner periphery of the sleeve 30 of the outer collar 20 through an adhesive 48 described later. It adheres and is fixed to the surface 32 (refer FIG.3 (b)).

このように、本実施形態では、端部ジョイント１２とＦＲＰ製円筒１８との固定部、及び、端部ジョイント１２とアウタカラー２０との固定部の両方の固定部を、端部ジョイント１２のセレーション部１４で行うように構成されている（図３（ｂ）参照）。なお、アウタカラー２０の外周面には、半径外方向に向かって拡径する図示しないフランジ部を設けてもよい。   As described above, in this embodiment, both the fixing portion of the end joint 12 and the FRP cylinder 18 and the fixing portion of the end joint 12 and the outer collar 20 are used as the serration of the end joint 12. It is comprised so that it may perform in the part 14 (refer FIG.3 (b)). In addition, you may provide the flange part which is not shown in figure in the outer peripheral surface of the outer collar 20, and expands toward radial outward direction.

本実施形態に係るトルク伝達装置１０は、基本的に以上のように構成されるものであり、次にその動作並びに作用効果について説明する。   The torque transmission device 10 according to the present embodiment is basically configured as described above. Next, the operation and effects thereof will be described.

本実施形態に係るトルク伝達装置１０は、ドライブシャフトとして機能するものであり、例えば、一方の端部ジョイント１２の軸部２２に図示しないインボード側等速ジョイント及びデファレンシャル装置を介してエンジン（図示せず）が連結されると共に、他方の端部ジョイント１２の軸部２２に図示しないアウトボード側等速ジョイントを介して車輪（図示せず）が連結される。   The torque transmission device 10 according to the present embodiment functions as a drive shaft. For example, an engine (not illustrated) is connected to a shaft portion 22 of one end joint 12 via an inboard side constant velocity joint and a differential device (not shown). (Not shown) and a wheel (not shown) are connected to the shaft portion 22 of the other end joint 12 via an unillustrated outboard side constant velocity joint.

エンジンの回転駆動力がトルク伝達装置１０に伝達されて、トルク伝達装置１０に回転トルクが付与されると、端部ジョイント１２とＦＲＰ製円筒（シャフト本体）１８との間で回転トルクが伝達される。なお、アウタカラー２０は、端部ジョイント１２からＦＲＰ製円筒１８に対して回転トルクが付与される際、ＦＲＰ製円筒１８の内側の回転トルクと外側の回転トルクとの間での回転トルクの差を無くすために設けられている。   When the rotational driving force of the engine is transmitted to the torque transmission device 10 and the rotational torque is applied to the torque transmission device 10, the rotational torque is transmitted between the end joint 12 and the FRP cylinder (shaft body) 18. The The outer collar 20 has a difference in rotational torque between the inner rotational torque and the outer rotational torque of the FRP cylinder 18 when rotational torque is applied to the FRP cylinder 18 from the end joint 12. It is provided to eliminate

次に、本実施形態に係るトルク伝達装置１０の組付工程について説明する。図４（ａ）、（ｂ）は、それぞれ組付工程を示す説明図である。   Next, an assembly process of the torque transmission device 10 according to the present embodiment will be described. 4 (a) and 4 (b) are explanatory views showing the assembly process.

外周面に環状段差部５０を有する略円筒状の圧入治具５２を準備し、圧入治具５２を図示しない固定部材に固定しておく。圧入治具５２は、環状段差部５０を境界とする小径円筒部５４と、大径フランジ部５６とが軸方向に沿って一体的に設けられている。   A substantially cylindrical press-fitting jig 52 having an annular stepped portion 50 on the outer peripheral surface is prepared, and the press-fitting jig 52 is fixed to a fixing member (not shown). The press-fitting jig 52 is integrally provided with a small-diameter cylindrical portion 54 having a circular stepped portion 50 as a boundary and a large-diameter flange portion 56 along the axial direction.

図４（ａ）に示されるように、圧入治具５２を端部ジョイント１２のセレーション部１４の所定位置に装着した状態において、アウタカラー２０を端部ジョイント１２の軸部２２の軸方向（矢印方向）に沿って挿通させ、アウタカラー２０の圧入部４０を端部ジョイント１２のセレーション部１４に対して圧入して固定する。アウタカラー２０の大径部２４（スリーブ３０）は、圧入治具５２の小径円筒部５４に挿入され、大径部２４の挿入側端面２４ａが圧入治具５２の環状段差部５０に当接することで、アウタカラー２０の軸方向への変位が規制される。なお、アウタカラー２０の圧入部４０が端部ジョイント１２のセレーション部１４に圧入して固定される際、セレーション部１４がアウタカラー２０よりも硬質に形成されているため、セレーション部１４のセレーション形状が圧入部４０の内周面に転写される。   4A, in the state where the press-fitting jig 52 is mounted at a predetermined position of the serration portion 14 of the end joint 12, the outer collar 20 is moved in the axial direction of the shaft portion 22 of the end joint 12 (arrow). The press-fit portion 40 of the outer collar 20 is press-fitted into the serration portion 14 of the end joint 12 and fixed. The large-diameter portion 24 (sleeve 30) of the outer collar 20 is inserted into the small-diameter cylindrical portion 54 of the press-fitting jig 52, and the insertion-side end surface 24a of the large-diameter portion 24 abuts on the annular step portion 50 of the press-fit jig 52. Thus, the displacement of the outer collar 20 in the axial direction is restricted. When the press-fit portion 40 of the outer collar 20 is press-fitted and fixed to the serration portion 14 of the end joint 12, the serration portion 14 is formed to be harder than the outer collar 20. Is transferred to the inner peripheral surface of the press-fit portion 40.

圧入治具５２は、アウタカラー２０を端部ジョイント１２のセレーション部１４に対して圧入して固定する際、アウタカラー２０をセレーション部１４の所定位置に位置決めして固定する位置決め手段としての機能と、アウタカラー２０の軸方向への変位を規制するストッパとしての機能とを併有する。   The press-fitting jig 52 functions as a positioning means for positioning and fixing the outer collar 20 at a predetermined position of the serration portion 14 when the outer collar 20 is press-fitted and fixed to the serration portion 14 of the end joint 12. And a function as a stopper for restricting the displacement of the outer collar 20 in the axial direction.

アウタカラー２０の内壁に形成された圧入部４０が端部ジョイント１２のセレーション部１４に圧入されてアウタカラー２０がセレーション部１４の所定位置（軸方向に沿った端部）に固定される。その際、アウタカラー２０の小径部２６の軸方向に沿った端面とセレーション部１４の軸方向に沿った端面とが面一又は略面一となる（図４（ｂ）参照）。なお、アウタカラー２０が端部ジョイント１２のセレーション部１４に固定された後、圧入治具５２は、セレーション部１４から抜脱される。   The press-fit portion 40 formed on the inner wall of the outer collar 20 is press-fitted into the serration portion 14 of the end joint 12, and the outer collar 20 is fixed to a predetermined position (end portion along the axial direction) of the serration portion 14. At that time, the end surface along the axial direction of the small diameter portion 26 of the outer collar 20 and the end surface along the axial direction of the serration portion 14 are flush or substantially flush (see FIG. 4B). After the outer collar 20 is fixed to the serration portion 14 of the end joint 12, the press-fitting jig 52 is removed from the serration portion 14.

続いて、図４（ｂ）に示されるように、図示しない接着剤塗布手段を介して挿入側端部１８ａの外周面に接着剤４８が塗布されたＦＲＰ製円筒１８を、アウタカラー２０の挿入方向と反対方向（矢印方向）から端部ジョイント１２のセレーション部１４に対して圧入する。ＦＲＰ製円筒１８の挿入側端部１８ａは、スリーブ３０の内周面３２とセレーション部１４の外径面３４との間に形成された環状間隙３６内に挿入され、環状側壁４２に当接してその変位が規制されて所定位置に固定される。   Subsequently, as shown in FIG. 4B, the outer collar 20 is inserted into the FRP cylinder 18 in which the adhesive 48 is applied to the outer peripheral surface of the insertion side end 18a through an adhesive application means (not shown). It press-fits into the serration part 14 of the end joint 12 from the opposite direction (arrow direction). The insertion side end 18 a of the FRP cylinder 18 is inserted into an annular gap 36 formed between the inner peripheral surface 32 of the sleeve 30 and the outer diameter surface 34 of the serration portion 14, and abuts against the annular side wall 42. The displacement is regulated and fixed at a predetermined position.

なお、圧入治具５２の小径円筒部５４の径方向の肉厚（Ｔ１）は、ＦＲＰ製円筒１８の挿入側端部１８ａの径方向の肉厚（Ｔ２）と接着剤４８の膜厚（α）（図３（ｂ）参照）との合計寸法（Ｔ１＝Ｔ２＋α）に設定されている。   The radial thickness (T1) of the small-diameter cylindrical portion 54 of the press-fitting jig 52 is equal to the radial thickness (T2) of the insertion-side end portion 18a of the FRP cylinder 18 and the thickness of the adhesive 48 (α ) (See FIG. 3B) is set to the total dimension (T1 = T2 + α).

このように設定することで、端部ジョイント１２のセレーション部１４の外径面３４とアウタカラー２０（スリーブ３０）の内周面３２との間に、接着剤４８の膜厚（α）となる所定の間隙を予め形成することができる。この結果、ＦＲＰ製円筒１８とアウタカラー２０との接着性能を向上させ、ＦＲＰ製円筒１８とアウタカラー２０とを確実に且つ強固に接着することができる。また、所定の間隙は、周方向に沿って均一に設定されるため、接着剤４８の膜厚を均一に形成することができる。   By setting in this way, the film thickness (α) of the adhesive 48 is formed between the outer diameter surface 34 of the serration portion 14 of the end joint 12 and the inner peripheral surface 32 of the outer collar 20 (sleeve 30). A predetermined gap can be formed in advance. As a result, the bonding performance between the FRP cylinder 18 and the outer collar 20 can be improved, and the FRP cylinder 18 and the outer collar 20 can be bonded securely and firmly. In addition, since the predetermined gap is set uniformly along the circumferential direction, the film thickness of the adhesive 48 can be formed uniformly.

ＦＲＰ製円筒１８の内周面がアウタカラー２０のセレーション部１４に対して圧入される際、金属製のアウタカラー２０よりもＦＲＰ製円筒１８が比較的に軟質な材料で形成されているため、ＦＲＰ製円筒１８の内周面に対してセレーション部１４のセレーション形状が転写される。この結果、ＦＲＰ製円筒１８とアウタカラー２０とを互いに強固に圧入嵌合することで、回り止めを行なうことができる。   When the inner peripheral surface of the FRP cylinder 18 is press-fitted into the serration portion 14 of the outer collar 20, the FRP cylinder 18 is formed of a relatively soft material than the metal outer collar 20, The serration shape of the serration portion 14 is transferred to the inner peripheral surface of the FRP cylinder 18. As a result, the FRP cylinder 18 and the outer collar 20 are firmly press-fitted together to prevent rotation.

ＦＲＰ製円筒１８の挿入側端部１８ａの外周面に塗布された接着剤４８は、クリアランス４４を介してアウタカラー２０の圧入部４０と端部ジョイント１２のセレーション部１４との間に進入する（図３（ｂ）参照）。この場合、例えば、接着剤４８に含有される気泡を、前記クリアランス４４を介して外部に排出することができる。   The adhesive 48 applied to the outer peripheral surface of the insertion side end portion 18a of the FRP cylinder 18 enters between the press-fit portion 40 of the outer collar 20 and the serration portion 14 of the end joint 12 via a clearance 44 ( (Refer FIG.3 (b)). In this case, for example, bubbles contained in the adhesive 48 can be discharged to the outside through the clearance 44.

また、例えば、端部ジョイント１２とアウタカラー２０とを異種金属（例えば、鉄鋼とアルミニウム）で形成した場合、異種金属同士のイオン化傾向に基づく電位差によって電食が発生するおそれがある。本実施形態では、クリアランス４４を介して進入する接着剤４８によりアウタカラー２０の圧入部４０と端部ジョイント１２のセレーション部１４との間に接着剤４８の膜が介在するため、異種金属同士が非接触状態となり、電食が発生することを抑制することができる。   Further, for example, when the end joint 12 and the outer collar 20 are formed of different metals (for example, steel and aluminum), there is a possibility that electrolytic corrosion may occur due to a potential difference based on the ionization tendency of the different metals. In the present embodiment, the adhesive 48 entering through the clearance 44 interposes the film of the adhesive 48 between the press-fit portion 40 of the outer collar 20 and the serration portion 14 of the end joint 12. It becomes a non-contact state and can suppress that electric corrosion occurs.

本実施形態では、端部ジョイント１２とＦＲＰ製円筒１８との固定部、及び、端部ジョイント１２とアウタカラー２０との固定部との両方の固定部を、端部ジョイント１２に設けられたセレーション部１４が担うことにより、端部ジョイント１２に特別な固定部（図５に示される非円形断面軸部６）を加工することが不要となる。   In this embodiment, serrations provided on the end joint 12 include both the fixed portion between the end joint 12 and the FRP cylinder 18 and the fixed portion between the end joint 12 and the outer collar 20. Since the part 14 bears, it becomes unnecessary to process a special fixing part (the non-circular cross-section shaft part 6 shown in FIG. 5) in the end joint 12.

従って、本実施形態では、端部ジョイント１２のセレーション部１４の一部とその一部を除いたセレーション部１４の残部とにより、端部ジョイント１２とＦＲＰ製円筒１８との固定部、及び、端部ジョイント１２とアウタカラー２０との固定部を併設することができ、端部ジョイント１２に対する加工工程を従来技術と比較して削減することができる。   Therefore, in this embodiment, the fixed portion between the end joint 12 and the FRP cylinder 18, and the end by the part of the serration part 14 of the end joint 12 and the remaining part of the serration part 14 excluding the part. The fixed part of the part joint 12 and the outer collar 20 can be provided side by side, and the process process with respect to the end part joint 12 can be reduced compared with a prior art.

また、本実施形態では、従来技術のようなアウタカラー４自体への特別な加工（図５に示される非円形係合穴７を設ける加工）が不要となるため、より一層加工工程を削減することができる。この結果、本実施形態では、装置自体の構成を簡素化して加工工程を簡略化することができる。   Moreover, in this embodiment, since the special process (process which provides the non-circular engagement hole 7 shown by FIG. 5) to the outer collar 4 itself like a prior art becomes unnecessary, a process process is reduced further. be able to. As a result, in the present embodiment, the configuration of the apparatus itself can be simplified to simplify the machining process.

さらに、本実施形態では、組付時にＦＲＰ製円筒１８の挿入側端部１８ａの外周面に接着剤４８を塗布することで、スリーブ３０の内周面３２に対しＦＲＰ製円筒１８の外周面が接着されて固定されると共に、セレーション部１４の外径面３４に対しＦＲＰ製円筒１８の内周面１６が圧入されて固定される。この結果、本実施形態では、ＦＲＰ製円筒１８の内周側と外周側との両方の固定部により、ＦＲＰ製円筒１８と端部ジョイント１２とが強固に固定され、回転トルクの伝達を円滑に遂行することができる。   Furthermore, in this embodiment, the outer peripheral surface of the FRP cylinder 18 is applied to the inner peripheral surface 32 of the sleeve 30 by applying an adhesive 48 to the outer peripheral surface of the insertion side end 18a of the FRP cylinder 18 at the time of assembly. While being bonded and fixed, the inner peripheral surface 16 of the FRP cylinder 18 is press-fitted and fixed to the outer diameter surface 34 of the serration portion 14. As a result, in this embodiment, the FRP cylinder 18 and the end joint 12 are firmly fixed by the fixing portions on both the inner peripheral side and the outer peripheral side of the FRP cylinder 18, thereby smoothly transmitting the rotational torque. Can be carried out.

さらにまた、本実施形態では、アウタカラー２０の小径部２６と端部ジョイント１２のセレーション部１４との間に設けられるクリアランス４４を介して、接着剤４８中に含有する気泡を外部に円滑に排出することができる。   Furthermore, in the present embodiment, the bubbles contained in the adhesive 48 are smoothly discharged to the outside through the clearance 44 provided between the small diameter portion 26 of the outer collar 20 and the serration portion 14 of the end joint 12. can do.

１０ トルク伝達装置
１２ 端部ジョイント
１４ セレーション部
１６ （ＦＲＰ製円筒の）内周面
１８ ＦＲＰ製円筒
２０ アウタカラー
２４ 大径部
２６ 小径部
３０ スリーブ
３２ （スリーブの）内周面
４４ クリアランス DESCRIPTION OF SYMBOLS 10 Torque transmission device 12 End joint 14 Serration part 16 Inner peripheral surface (of FRP cylinder) 18 FRP cylinder 20 Outer collar 24 Large diameter part 26 Small diameter part 30 Sleeve 32 Inner peripheral surface 44 (sleeve) 44 Clearance

Claims (3)

一側から他側へトルクを伝達する端部ジョイントと、
前記端部ジョイントの外周面に形成されたセレーション部の一部に内周面が嵌合するＦＲＰ（Fiber Reinforced Plastics）製円筒と、
前記端部ジョイントと前記ＦＲＰ製円筒とを接続するアウタカラーと、
を備えるトルク伝達装置において、
前記アウタカラーは、大径部と小径部とを有し、
前記アウタカラーの前記大径部を前記ＦＲＰ製円筒の外周面に結合すると共に、前記アウタカラーの前記小径部を前記端部ジョイントの前記セレーション部に結合することを特徴とするトルク伝達装置。 An end joint that transmits torque from one side to the other;
A FRP (Fiber Reinforced Plastics) cylinder in which the inner peripheral surface is fitted to a part of the serration portion formed on the outer peripheral surface of the end joint;
An outer collar connecting the end joint and the FRP cylinder;
A torque transmission device comprising:
The outer collar has a large diameter portion and a small diameter portion,
The torque transmission device, wherein the outer diameter portion of the outer collar is coupled to the outer peripheral surface of the FRP cylinder, and the smaller diameter portion of the outer collar is coupled to the serration portion of the end joint. 請求項１記載のトルク伝達装置において、
前記大径部は、円筒状のスリーブを有し、
前記スリーブは、前記端部ジョイントの軸線と略平行に延在し、前記スリーブの内周面と前記セレーション部の外径面との間に前記ＦＲＰ製円筒の端部が介装されることを特徴とするトルク伝達装置。 The torque transmission device according to claim 1,
The large diameter portion has a cylindrical sleeve,
The sleeve extends substantially parallel to the axis of the end joint, and the end of the FRP cylinder is interposed between the inner peripheral surface of the sleeve and the outer diameter surface of the serration portion. Torque transmission device characterized. 請求項１記載のトルク伝達装置において、
前記アウタカラーの前記小径部と前記端部ジョイントの前記セレーション部との間には、クリアランスが設けられることを特徴とするトルク伝達装置。 The torque transmission device according to claim 1,
A torque transmission device, wherein a clearance is provided between the small diameter portion of the outer collar and the serration portion of the end joint.
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CN109519482A (en) * 2018-12-03 2019-03-26 北京航星机器制造有限公司 The mechanism and its assembly method of rolling support in a kind of confined space
CN109519482B (en) * 2018-12-03 2021-01-08 北京航星机器制造有限公司 Mechanism for rolling support in limited space and assembly method thereof
JP7458314B2 (en) 2019-12-26 2024-03-29 株式会社クボタケミックス electric actuator

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