A two-gear heavy truck electric drive axle comprises a drive motor and a main shaft in transmission connection with the drive motor and further comprises a differential mechanism, the differential mechanism is in transmission connection with an output half shaft, the main shaft and the differential mechanism are in transmission connection through a gear shifting mechanism, and the gear shifting mechanism at least comprises a first-gear transmission assembly and a second-gear transmission assembly. The second-gear transmission assembly is in transmission connection with the differential mechanism, and the first-gear transmission assembly is in transmission connection with the differential mechanism through the first speed reducing mechanism. The invention provides a two-gear heavy truck electric drive axle. The high-speed gear and the low-speed gear are both connected with the differential mechanism, the high-speed gear is directly connected with the differential mechanism, high transmission efficiency is achieved, and the high-speed long-time running endurance requirement can be met; the low-speed gear is in transmission connection with the differential mechanism through the first speed reducing mechanism, and large-torque output is achieved. Therefore, efficiency and large-torque output performance are both considered, good economical efficiency is achieved, meanwhile, direct connection of an intermediate shaft system and a differential mechanism is omitted, and the space layout optimization effect is obvious.

    一种两挡重卡电驱动桥,包括驱动电机以及和其传动连接的主轴,还包括差速器,差速器和输出半轴传动连接,所述主轴和差速器之间通过换挡机构传动连接,所述换挡机构包括至少包括一挡传动组件和二挡传动组件,所述二挡传动组件和差速器传动连接,一挡传动组件通过第一减速机构和差速器传动连接。本发明提出的两挡重卡电驱动桥。两挡高低速均和差速器连接,其中高速挡和差速器直连,具备较高的传动效率,可以满足高速长时间的运行续航要求;低速挡利用第一减速机构和差速器传动连接,实现大扭矩输出。因此兼顾了效率和大扭矩输出性能,并具有较好的经济性,同时省略了中间轴系和差速器直连,空间布局优化效果较为明显。


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    Title :

    Two-gear heavy truck electric drive axle


    Additional title:

    一种两挡重卡电驱动桥


    Contributors:
    CHEN ZIBIN (author)

    Publication date :

    2025-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / 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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