The invention discloses a center shaft transmission mechanism of an electric bicycle. The transmission mechanism comprises a center shaft for mounting a crank and pedals to bear riding pedaling force;a main crankset which transmits pedal force to a driving chain wheel of the electric bicycle through a sleeving chain; and an electric driving mechanism which is installed in a shell with the centershaft, and is provided with an output shaft used for outputting power and parallel to the center shaft. The transmission mechanism is characterized in that the main crankset is fixed on the output shaft, and the middle shaft is in transmission connection with the output shaft through a gear transmission mechanism. Different from an unconventional design, the main crankset is fixed on the output shaft of the electric driving mechanism parallel to the middle shaft through, so that the mechanism is more compact in overall structure, smaller in size and higher in transmission efficiency.

    本发明公开了一种电动自行车的中轴传动机构,包括:中轴,用于安装曲柄和脚踏以承受骑行踏力;主牙盘,通过套置链条向电动自行车的驱动链轮传递脚踏力;电动驱动机构,同中轴一同安装在壳体内,具有用于输出动力且与中轴平行的输出轴;其特征在于所述主牙盘固定在输出轴上,而中轴经齿轮传动机构与该输出轴传动连接。本发明一反常规设计,将主牙盘固定在与中轴平行的电动驱动机构的输出轴上,使得机构整体结构更加紧凑,体积更小,传动效率更高。


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    Title :

    Center shaft transmission mechanism of electric bicycle


    Additional title:

    电动自行车的中轴传动机构


    Contributors:
    WEN QUNFENG (author)

    Publication date :

    2020-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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