The invention belongs to the technical field of machinery and vehicle transmission, and particularly relates to a centralized two-gear electric drive axle. The electric drive axle comprises a drive motor, a power transmission half shaft and a two-stage planetary speed reduction mechanism. Compared with the prior art, the single-motor drive axle has the advantages that electric energy can be converted into power to be output to the output shaft, energy in the deceleration process of a vehicle can be recycled, and the electric drive axle is provided with the two-gear planetary reducer and can efficiently run within a wide range. A planetary differential mechanism and an inter-wheel differential lock are integrally designed on the electric drive axle. The drive axle has the remarkable effects that the scattered arrangement of drive power input is realized, and independent power output can be realized on each drive axle, so that a vehicle has pure electric drive functions of energy output and energy recovery, and an original transmission, a transfer case and a power transmission universal shaft are replaced.

    本发明属于机械和车辆传动技术领域,具体涉及一种集中式两档电驱动桥。所述电驱动桥包括:驱动电机、动力输半轴、二级行星减速机构;与现有技术相比较,本发明提供一种单电机驱动桥,该电驱桥能够将电能转化为动力输出到输出轴,也能够将车辆减速过程中的能量回收,该电驱动桥具有两档行星减速器在比较宽的范围内能够高效运行。该电驱动桥集成设计了行星差速器和轮间差速锁。本发明的显著效果在于:实现了驱动动力输入的分散布置,在每一个驱动桥上都可以有独立动力输出,使车辆具有能量输出、能量回收的纯电力驱动功能,取代了原有的变速器、分动箱和动力传递的万向轴。


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    Title :

    Centralized two-gear electric drive axle


    Additional title:

    一种集中式两档电驱动桥


    Contributors:
    LI JIYUAN (author) / FENG GUANGJUN (author) / SHI YANHUI (author) / WANG MINGCHENG (author) / MAO RUN (author) / GUO TING (author)

    Publication date :

    2021-10-15


    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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