The invention discloses a middle driving mechanism for a power-assisted bicycle, which comprises a shell, a motor, a planetary gear mechanism in transmission connection with an output shaft of the motor, a bevel gear driving end and a bevel gear driven end meshed with the bevel gear driving end, the bevel gear driven end is connected with a crankset, and the planetary gear mechanism comprises a planetary gear and a planetary gear output support. The mechanism further comprises a bevel gear support which is arranged outside the planetary gear output support in a sleeving mode, a clutch which is arranged between the planetary gear output support and the bevel gear support, and the planetary gear output support and the bevel gear support are in transmission connection through the clutch; the bevel gear driving end is coaxially and fixedly connected with the bevel gear support, and a supporting assembly is arranged outside the bevel gear support and used for supporting the planetary gear output support and the bevel gear driving end. The length of the middle driving mechanism in the axial direction is short, so that the overall structure and the size are more compact, a battery with larger capacity can be conveniently installed on the power-assisted bicycle, and the durability is improved.

    本发明公开了一种用于助力自行车的中置驱动机构,包括外壳、电机、与电机输出轴传动连接的行星齿轮机构、锥齿轮主动端、与锥齿轮主动端啮合的锥齿轮从动端,锥齿轮从动端连接牙盘,行星齿轮机构包括行星齿轮和行星齿轮输出支架,还包括:套设在行星齿轮输出支架外部的锥齿轮支座,行星齿轮输出支架和锥齿轮支座之间设置离合器,行星齿轮输出支架和锥齿轮支座通过离合器传动连接;锥齿轮主动端与所述锥齿轮支座同轴固定连接,锥齿轮支座外部设置支撑组件,支撑组件用于支撑行星齿轮输出支架和锥齿轮主动端。中置驱动机构在轴向方向的长度较短,从而使整体结构和体积更加紧凑,便于助力自行车安装容量更大的电池,提高续航能力。


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    Title :

    Middle driving mechanism for power-assisted bicycle and power-assisted bicycle


    Additional title:

    一种用于助力自行车的中置驱动机构及助力自行车


    Contributors:
    HUANG FUMING (author) / HUANG JUNNING (author) / MA CHENG (author) / CAI HUALIN (author) / YU JUNHUI (author)

    Publication date :

    2021-06-04


    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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