PROBLEM TO BE SOLVED: To provide a wheel drive unit which prevents poor lubrication or the like by supplying oil amounts necessary for cooling and lubrication to a motor part and a reduction gear.SOLUTION: A wheel drive unit comprises: a motor part A having a motor rotating shaft 24a; a reduction gear B for reducing the rotation of the motor rotating shaft 24a, and outputting it; a casing 22 for accommodating the motor part A and the reduction gear B; an oil tank 41 arranged at the casing 22; and an oil pump 42 which sucks lubricants from the oil tank 41, supplies the lubricants to the motor part A and the reduction gear B, and performs the lubrication and cooling of the motor part A and the reduction gear B. The wheel drive unit drives wheels by an output of the reduction gear B, and also comprises a discharge passage 48 which continues to a discharge port of the oil pump 42, a motor casing oil supply passage 43a which extends along the inside of the casing of the motor part A, and a reduction gear casing oil supply passage 50 which extends along the inside of the casing of the reduction gear B. The motor casing oil supply passage 43a and the reduction gear casing oil supply passage 50 are connected to the discharge passage 48 via oil amount adjusting means 51.SELECTED DRAWING: Figure 1

    【課題】 モータ部や減速機それぞれに冷却や潤滑に必要な油量を供給することで、潤滑不良等を防ぐ車輪駆動装置を提供する。【解決手段】 モータ回転軸24aを有するモータ部Aと、モータ回転軸24aの回転を減速して出力する減速機Bと、モータ部Aと減速機Bを収容するケーシング22と、ケーシング22に設けたオイルタンク41と、オイルタンク41から潤滑油を吸引し、潤滑油をモータ部Aと減速機Bに供給してモータ部Aと減速機Bの潤滑と冷却を行うオイルポンプ42とを有し、減速機Bの出力により車輪を駆動する車輪駆動装置であって、オイルポンプ42の吐出口と連なる吐出通路48と、モータ部Aのケーシングの内側に沿って延びるモータケーシング給油通路43aと、減速機Bのケーシングの内側に沿って延びる減速機ケーシング給油通路50とを有し、モータケーシング給油通路43aと減速機ケーシング給油通路50は、油量調整手段51を介して吐出通路48に接続されている。【選択図】 図1


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    Title :

    WHEEL DRIVE UNIT


    Additional title:

    車輪駆動装置


    Contributors:

    Publication date :

    2016-10-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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