An object of the present invention is to provide an in-wheel motor driving device having a structure which is less likely for a gear shaft 9a of an output gear 9 to become out of alignment even if the gear shaft 9a comes under a bending moment from a lateral force from a tire caused by a turning load for example. The gear shaft 9a of the output gear 9 in the speed reducer B of an in-wheel motor driving device 1 is supported at its two ends with respect to a housing 11. The double-end supported gear shaft 9a of the output gear 9 is formed with a spline hole 9b. The spline hole 9b provides spline-connection with an output shaft 13 of the wheel hub C. This structure makes the gear shaft 9a less likely to become out of alignment even if the output gear 9 comes under a bending moment. Therefore, even if an external force such as a lateral force from a tire causes the output shaft 13 of the wheel hub C to develop a shaft deflection, the deformation/displacement is absorbed by a gap between splines which connect the output shaft 13 of the wheel hub C and the output gear 9 with each other.


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    Title :

    IN-WHEEL MOTOR DRIVING DEVICE


    Additional title:

    RADINTERNE MOTORANTRIEBSVORRICHTUNG
    DISPOSITIF DE PROPULSION À MOTEUR DANS LA ROUE


    Contributors:

    Publication date :

    2019-05-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / 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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