PROBLEM TO BE SOLVED: To maintain the engagement of gears constituting a parallel-shaft gear reduction gear in a favorable state even if the bending moment by a lateral force is applied.SOLUTION: An in-wheel motor drive unit 21 comprises: a motor part A; a reduction gear part B constituted of a parallel-shaft gear reduction gear 39 which is composed of a plurality of gears 30 to 33; a wheel bearing part C; and a casing 22 which accommodates the motor part A and the reduction gear part B. The gears 30 to 33 of the parallel-shaft gear reduction gear 39 are rotatably supported by rolling bearings 40, 42 to 46 with respect to the casing 22. The parallel-shaft gear reduction gear 39 comprises a fourth gear 33 which transmits a drive force to the wheel bearing part C, and a third gear 32 which is engaged with the fourth gear 33. The fourth gear 33 and its rolling bearings 45, 46, and the third gear 32 and its rolling bearings 43, 44 are accommodated in a cassette 61 in which a pair of cassette members 59, 60 abut on each other, and assembled, and the cassette 61 is attached to the casing 22.SELECTED DRAWING: Figure 1

    【課題】 横力による曲げモーメントが加わっても、平行軸歯車減速機を構成する歯車の噛み合いを良好な状態に維持する。【解決手段】 モータ部Aと、複数の歯車30〜33からなる平行軸歯車減速機39で構成された減速機部Bと、車輪用軸受部Cと、モータ部Aおよび減速機部Bを収容したケーシング22とを備え、平行軸歯車減速機39の各歯車30〜33をケーシング22に対して転がり軸受40,42〜46により回転自在に支持したインホイールモータ駆動装置21であって、平行軸歯車減速機39は、車輪用軸受部Cに駆動力を伝達する第4歯車33と、第4歯車33と噛合する第3歯車32とを備え、第4歯車33およびその転がり軸受45,46と第3歯32およびその転がり軸受43,44とを、一対のカセット部材59,60が突き合わされたカセット61に収容してアッセンブリ化し、カセット61をケーシング22に取り付ける。【選択図】 図1


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    Title :

    IN-WHEEL MOTOR DRIVE UNIT


    Additional title:

    インホイールモータ駆動装置


    Contributors:

    Publication date :

    2016-12-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16C SHAFTS , Wellen



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