The invention provides a middle driving mechanism of a power-assisted bicycle. The mechanism comprises a shell, a motor, a driving bevel gear driven by the motor, a driven bevel gear meshed with the driving bevel gear, a crankset support connected with the driven bevel gear and a middle shaft assembly penetrating through the driven bevel gear and the crankset support, and further comprises a supporting extension seat which is coaxially connected with the driven bevel gear; the supporting extension seat extends to the other side, away from the crankset support, of the driven bevel gear; the supporting structure is used for supporting the driven bevel gear and comprises a first supporting piece arranged on the other side, away from the crankset support, of the driven bevel gear and a second supporting piece close to the side of the crankset support; the first supporting piece is arranged at the end, away from the driven bevel gear, of the supporting extension seat. According to the middle driving mechanism of the power-assisted bicycle, the stability of supporting the driven bevel gear is good, the deflection phenomenon of the driven bevel gear can be effectively prevented, and the service life can be effectively prolonged.

    本发明提供一种助力自行车的中置驱动机构,包括壳体、电机、受电机驱动的驱动锥齿轮、与驱动锥齿轮啮合的从动锥齿轮、与从动锥齿轮连接的牙盘支座以及穿过从动锥齿轮及牙盘支座的中轴组件,还包括:支撑延座,支撑延座与从动锥齿轮同轴连接;支撑延座延伸至从动锥齿轮远离牙盘支座的另一侧;支撑结构,用于支撑从动锥齿轮,包括设置于从动锥齿轮远离牙盘支座的另一侧的第一支撑件,和靠近牙盘支座一侧的第二支撑件;第一支撑件设置在支撑延座远离从动锥齿轮的端部。所述助力自行车的中置驱动机构对从动锥齿轮支撑的稳定性好,能够有效防止从动锥齿轮出现偏摆现象,能够有效延长使用寿命。


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    Titel :

    Middle driving mechanism of power-assisted bicycle


    Weitere Titelangaben:

    一种助力自行车的中置驱动机构


    Beteiligte:
    HUANG FUMING (Autor:in) / HUANG JUNNING (Autor:in) / MA CHENG (Autor:in) / CAI HUALIN (Autor:in)

    Erscheinungsdatum :

    2021-10-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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