The embodiment of the invention discloses a driving and speed changing integrated middle-arranged device and an electric power-assisted bicycle. The middle-arranged device comprises a main driving unit, an auxiliary driving unit and a transmission mechanism. The transmission mechanism comprises a crank connecting shaft, a planet carrier, a planet wheel, a sun wheel and a transmission wheel; the transmission wheel is an annular structure, an inner gear ring is arranged on the inner side of the transmission wheel, an outer gear ring is arranged on the outer side of the transmission wheel, and the transmission wheel is fixedly connected with a crankset; the planet carrier is arranged on one side of the transmission wheel, and the crank connecting shaft is fixedly connected with the planet carrier; the planet wheel is arranged on the planet carrier and engaged with the sun wheel and the inner gear ring of the transmission wheel; a main driving unit is connected with an outer gear ring of the transmission wheel; and the auxiliary driving unit is connected with the sun gear. The driving and speed changing integrated middle-arranged device can achieve a power-assisted driving function anda speed changing function at the same time, and is low in cost, small in size, light in weight and easy to install and maintain.

    本发明实施例公开了一种驱动与变速一体式中置装置及电助力自行车,该中置装置包括主驱动单元、辅助驱动单元以及传动机构,传动机构包括曲柄连接轴、行星架、行星轮、太阳轮以及传动轮;传动轮为环状结构,传动轮的内侧设有内齿圈,传动轮的外侧设有外齿圈,传动轮与牙盘固定连接;行星架设于所述传动轮的一侧,所述曲柄连接轴与所述行星架固定连接;所述行星轮设于所述行星架上,且分别与所述太阳轮以及所述传动轮的内齿圈啮合;所述主驱动单元与所述传动轮的外齿圈连接;所述辅助驱动单元与所述太阳轮连接。本发明提出的驱动与变速一体式中置装置能够同时实现助力驱动和变速功能,具有成本低、体积小、重量轻以及安装维护简单的特点。


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    Titel :

    Driving and speed changing integrated middle-arranged device and electric power-assisted bicycle


    Weitere Titelangaben:

    一种驱动与变速一体式中置装置及电助力自行车


    Beteiligte:
    CUI LING (Autor:in) / SU WEIQIAN (Autor:in)

    Erscheinungsdatum :

    2020-08-14


    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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