The invention provides a coaxial electric drive axle three-gear speed reducer transmission system which is characterized by comprising a motor, a driving shaft, an intermediate shaft, an output gear set, a gear shifting mechanism and a differential mechanism assembly. The three-gear speed reducer has the beneficial effects that the three-gear speed reducer structural design is adopted, first-gear transmission and second-gear transmission with the large transmission ratio are adopted, transmission is achieved through cooperation of the gear set and the planet wheel set, large-torque output is achieved through the large transmission ratio of the planet wheel set, and small-torque output is achieved through third-gear transmission with the small transmission ratio by adopting the gear set transmission; the first-gear transmission and the second-gear transmission can achieve a larger transmission ratio, so that the transmission ratio of the third-gear transmission can be better controlled, the transmission ratio of the third-gear transmission can be controlled within a proper range, the smoothness of vehicle running during vehicle gear shifting is guaranteed, and the new energy heavy truck is made to adapt to efficient work under various working conditions. The speed reducer and the motor are coaxially arranged and integrated in the axle housing, the structure is compact, and the occupied space during installation is saved.

    本发明提供一种同轴式电驱桥三挡减速器传动系统,其特征在于,包括:电机、驱动轴、中间轴、输出齿轮组、换挡机构以及差速器总成。本发明的有益效果:采用三挡减速器结构设计,传动比较大的一挡传动和二挡传动,通过齿轮组和行星轮组配合实现传动,利用行星轮组的传动比较大,实现大扭矩输出,传动比较小的三挡传动采用齿轮组传动,实现较小扭矩输出,一挡传动和二挡传动传动可以实现更大的传动比,从而可以更好的控制三档传动的传动比,可使三挡的传动比均控制在合适的范围内,保证车辆换挡时的车辆行驶的平顺性,使新能源重型卡车适应在各种工况下的高效工作;将减速器和电机同轴设置且集成于桥壳内,结构紧凑,节省安装时占用空间。


    Access

    Download


    Export, share and cite



    Title :

    Coaxial electric drive axle three-gear speed reducer transmission system


    Additional title:

    一种同轴式电驱桥三挡减速器传动系统


    Contributors:
    YI CHAOFAN (author) / WANG PENGCHENG (author) / JIANG ZHENGPING (author) / ZHONG RUGUO (author)

    Publication date :

    2024-11-01


    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



    Integrated electric drive axle two-gear speed reducer transmission device

    WANG LIANHAO / WANG PENGCHENG / JIANG ZHENGPING et al. | European Patent Office | 2023

    Free access

    Electric drive axle speed reducer

    YE DING / LI WEI / LIU FEI et al. | European Patent Office | 2024

    Free access

    Multi-gear coaxial electric drive axle transmission device

    LI BENJUN / WANG WEIPING / WENG XIAOMING et al. | European Patent Office | 2024

    Free access


    Coaxial two-gear electric drive axle

    LI JIYUAN / FENG GUANGJUN / SHI YANHUI et al. | European Patent Office | 2021

    Free access