PROBLEM TO BE SOLVED: To provide a simple sealing structure when performing grease lubrication at a spline fitting portion.SOLUTION: An outer ring rotation type bearing is used as the wheel bearing 50 of an in-wheel motor drive device 21, and a speed reduction gear 39 is arranged on the outer diameter side of the wheel bearing 50. The output shaft 36 of the speed reduction gear 39 is externally fitted to a bearing outer ring 53 of the wheel bearing 50, and torque is transmitted between the output shaft 36 and the bearing outer ring 53 via a spline. Grease is interposed in a spline fitting portion 60 between the output shaft 36 and the bearing outer ring 53. A grease filling space 64 is formed communicating with an inboard side end of the spline fitting portion 60, and a seal member 70 is disposed between the output shaft 36 and a housing 22 among members that partition the grease filling space 64.SELECTED DRAWING: Figure 3

    【課題】 スプライン嵌合部でグリース潤滑を行う際の簡易なシール構造を提供する。【解決手段】 インホイールモータ駆動装置21の車輪用軸受50として外輪回転タイプを使用し、車輪用軸受50の外径側に減速機39を配置する。減速機39の出力軸36を車輪用軸受50の軸受外輪53に外嵌し、出力軸36と軸受外輪53の間でスプラインを介してトルク伝達を行う。出力軸36と軸受外輪53間のスプライン嵌合部60にグリースを介在させる。スプライン嵌合部60のインボード側端部に通じるグリース充填空間64を形成し、グリース充填空間64を区画する部材のうち、出力軸36とハウジング22の間にシール部材70を配置する。【選択図】 図3


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    Title :

    IN-WHEEL MOTOR DRIVE DEVICE


    Additional title:

    インホイールモータ駆動装置


    Contributors:

    Publication date :

    2017-09-21


    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 / F16C SHAFTS , Wellen / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING / F16J Kolben , PISTONS



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