PROBLEM TO BE SOLVED: To provide an in-wheel drive unit which is high in quality and excellent in durability.SOLUTION: An in-wheel motor drive unit 21 comprises a rolling bearing 71 which rotatably supports an end of a motor rotating shaft 24 at an in-board side with respect to a casing 22 which holds a motor part A, and a lubrication mechanism which supplies a lubricant to each part of the motor part A and a speed reduction part B accompanied by the drive of the motor part A. The lubrication mechanism distributes the lubricant circulating in an oil passage 22a as a first oil passage formed in a wall of the casing 22 to an oil passage 24a as a second oil passage formed in the motor rotating shaft 24, and a bearing lubrication oil passage 76 which is formed between the motor rotating shaft 24 and the casing 22, and extends to the rolling bearing 71. A non-contact type seal member S which opposes an inner ring 72 as an inside raceway ring at its inside diameter end via a clearance Sr is arranged at an opening part of the rolling bearing 71.SELECTED DRAWING: Figure 6

    【課題】高品質で耐久性に優れたインホイールモータ駆動装置を提供する。【解決手段】モータ部Aを保持したケーシング22に対し、モータ回転軸24のインボード側の端部を回転自在に支持する転がり軸受71と、モータ部Aの駆動に伴ってモータ部Aおよび減速部Bの各所に潤滑油を供給する潤滑機構とを備え、潤滑機構が、ケーシング22の壁部内に設けた第1油路としての油路22aを流通する潤滑油を、モータ回転軸24の内部に設けた第2油路としての油路24aと、モータ回転軸24とケーシング22の間に形成され、上記の転がり軸受71に向けて延びた軸受潤滑用油路76とに分配するように構成されたインホイールモータ駆動装置21において、転がり軸受71の開口部に、内径端部が内側軌道輪としての内輪72と隙間Srを介して対向する非接触型のシール部材Sを設けた。【選択図】図6


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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 :

    2016-05-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16C SHAFTS , Wellen / 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 / F16N LUBRICATING , Schmierung



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