The electrically-driven planetary transmission with the electromagnetic gear shifting function comprises a motor, a double-brake electromagnetic brake and a two-stage planetary reducer which are sequentially connected, a first sun gear of a first planetary reducer is connected with the motor, and a first planet carrier is meshed with a second sun gear; the spline gear sleeve movably sleeves a spline shaft of the first sun gear, is connected with a first dynamic friction plate of the first electromagnetic brake and is used for braking and releasing the first sun gear; and the spline gear disc is arranged on a first inner gear ring of the first planetary gear reducer, is connected with a second dynamic friction plate of the second electromagnetic brake and a first static friction plate of the first electromagnetic brake, and is used for braking and releasing the first inner gear ring. According to the transmission, three-gear working state switching is achieved through the double-brake electromagnetic brake and the two-stage planetary reducer, and the requirements of a low-speed large-torque load-bearing walking working condition in a load state, a high-speed small-torque rapid transition working condition in a no-load state and a neutral state working condition are met respectively.

    本发明涉及一种具有电磁换挡功能的电驱动行星变速器,包括依次连接的电机、双制动电磁制动器和两级行星减速器,第一行星齿轮减速器的第一太阳齿轮与电机连接,第一行星架与第二太阳齿轮啮合;花键齿轮套活动套设于第一太阳齿轮的花键轴上,且与第一电磁制动器的第一动摩擦片连接,用于第一太阳齿轮的制动和释放;花键齿轮盘设于第一行星齿轮减速器的第一内齿圈上,且与第二电磁制动器的第二动摩擦片和第一电磁制动器的第一静摩擦片连接,用于第一内齿圈的制动和释放。该变速器通过双制动电磁制动器和两级行星减速器实现三档工作状态切换,分别满足负载状态低速大扭矩负重行走工况、空载状态高速小扭矩快速转场工况和空档状态工况的需求。


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    Title :

    Electrically-driven planetary transmission with electromagnetic gear shifting function


    Additional title:

    一种具有电磁换挡功能的电驱动行星变速器


    Contributors:

    Publication date :

    2025-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / F16H Getriebe , GEARING / 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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