The invention discloses a speed reducer assembly which comprises a driving motor assembly comprising a motor stator and a motor rotor which are located in an inner cavity of a motor shell; the differential mechanism assembly is arranged in an inner cavity of the speed reducer shell, the sun gear train assembly is connected with the differential mechanism assembly, and the differential mechanism assembly and the sun gear train assembly are located at the first end and the second end of the driving motor assembly respectively; a driving spiral bevel gear of the spiral bevel gear assembly is connected to the first end of a spiral bevel gear shaft, a driven spiral bevel gear meshed with the driving spiral bevel gear is connected to the gear transmission part, and the second end of the spiral bevel gear shaft penetrates through the motor rotor and is connected to the sun gear train assembly to transmit torque to the differential mechanism assembly. The rotation axis of the motor rotor is perpendicular to the output shaft of the differential assembly. According to the invention, the length of the speed reducer assembly is shortened, so that the gravity center of the heavy driving motor is closer to the rear axle shell, and the problems of gear shaft system deformation, NVH (Noise Vibration and Harshness) and the like are solved. The invention further discloses an electric drive axle assembly.

    本发明公开了减速器总成,包括:驱动电机总成,包括位于电机壳的内腔中的电机定子和电机转子;差速器总成,布置于减速器壳体的内腔中,太阳轮系总成与太阳轮系总成相连接,差速器总成和太阳轮系总成分别位于驱动电机总成的第一端和第二端;螺旋伞齿轮总成的主动螺旋伞齿轮连接于螺旋伞齿轮轴的第一端,与主动螺旋伞齿轮相啮合的被动螺旋伞齿连接于齿轮传动部,螺旋伞齿轮轴的第二端贯穿电机转子,连接于太阳轮系总成,将扭矩传递至差速器总成,电机转子的旋转轴线与差速器总成的输出轴相互垂直。本发明缩短了减速器总成的长度,使得质量较重的驱动电机的重心更加靠近后桥壳体,改善了齿轮轴系变形和NVH等问题。本发明还公开了电动驱动桥总成。


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    Title :

    Speed reducer assembly and electric drive axle assembly


    Additional title:

    一种减速器总成及电动驱动桥总成


    Contributors:
    PENG NANJIANG (author) / MA GUO (author) / XIE HAIHONG (author) / LIU LIN (author) / LIANG ZHI (author)

    Publication date :

    2023-12-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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