The invention discloses an electric drive axle speed reducer. The electric drive axle speed reducer comprises a motor, a differential mechanism, a power takeoff and a shaft system. A first intermediate shaft and a second intermediate shaft in an intermediate shaft set of the shaft system are arranged on the same side of a center shaft in the shaft system, and a second intermediate shaft and a third intermediate shaft in the intermediate shaft set are arranged on the two sides of the center shaft. The motor and the power takeoff are arranged on the two sides of the center shaft respectively. The central shaft is hollowly sleeved on a first output half shaft in a power output shaft group of the shaft system and is connected with the differential mechanism through a second intermediate shaft and a third intermediate shaft; the differential mechanism is connected with the first output half shaft and a second output half shaft in the power output shaft set. And the power takeoff is connected with the central shaft through a power takeoff output shaft of the shaft According to the technical scheme, the motor, the shaft system and the power takeoff are arranged on the two sides of the center line of the power output shaft set, and the problem that in the prior art, after a speed reducer is integrated to an axle housing, due to the fact that an electric drive axle is poor in overall stress, the bearing capacity of the electric drive axle is low is solved.

    本申请公开了一种电驱桥减速器。该电驱桥减速器包括:电机、差速器、取力器及轴系;轴系的中间轴组中的第一中间轴和第二中间轴设置在轴系中的中心轴的同侧,中间轴组中的第二中间轴和第三中间轴设置在中心轴的两侧;电机与取力器分别设置在中心轴的两侧;中心轴空套在轴系的动力输出轴组中的第一输出半轴上,并通过第二中间轴和第三中间轴与差速器相连接;差速器分别与第一输出半轴和动力输出轴组中的第二输出半轴连接;取力器通过轴系的取力器输出轴与中心轴连接。本申请技术方案通过将电机、轴系、取力器设置在动力输出轴组的中心线两侧,解决了现有技术将减速器集成到桥壳之后由于电驱桥整体受力不佳,导致电驱桥的承载能力较低的问题。


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    Title :

    Electric drive axle speed reducer


    Additional title:

    一种电驱桥减速器


    Contributors:
    YE DING (author) / LI WEI (author) / LIU FEI (author) / FANG WEIRONG (author) / GAN GUODONG (author)

    Publication date :

    2024-12-06


    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



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