The invention relates to the technical field of bicycles, in particular to a bicycle power assisting device, a power assisting bicycle and a power assisting adjusting method. The bicycle power assisting device comprises a bicycle frame, a treading unit and a power assisting unit, the power assisting unit comprises a driving motor, a cylindrical gear and a face gear, the face gear comprises a gear body and a plurality of gear teeth annularly arranged on the end face of the gear body, the gear body is connected with the treading unit, and the cylindrical gear is connected with the face gear in a meshed mode. And the driving motor is connected with the cylindrical gear, so that the cylindrical gear and the face gear reduce the input rotating speed of the driving motor. The large reduction ratio is achieved through transmission of the cylindrical gear and the face gear, efficient speed reduction of output power of the driving motor can be achieved without an additional speed reduction device, it is ensured that the power assisting unit provides stable and continuous assisting power for the treading unit, the requirement for the torque of the driving motor is small, the diameter of the driving motor can be reduced, and the power assisting unit is more stable. Therefore, the size and the weight of the whole bicycle power assisting device are reduced.

    本发明涉及自行车技术领域,具体涉及一种自行车助力装置、助力自行车及助力调节方法。自行车助力装置包括车架、踩踏单元以及助力单元,助力单元包括驱动电机、圆柱齿轮以及面齿轮,面齿轮包括齿轮本体和齿轮本体端面上呈环形排列的若干个轮齿,齿轮本体和踩踏单元连接,圆柱齿轮和面齿轮啮合连接,驱动电机和圆柱齿轮连接,以使圆柱齿轮和面齿轮对驱动电机的输入转速进行减速。本发明利用圆柱齿轮和面齿轮的传动具有较大的减速比,无需额外的减速装置即可实现对驱动电机的输出动力进行高效减速,以确保助力单元为踩踏单元提供稳定持续的助力,并由于对驱动电机的扭矩要求小,可减小驱动电机的直径,以便于减小整个自行车助力装置的体积和重量。


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    Title :

    Bicycle power assisting device, power assisting bicycle and power assisting adjusting method


    Additional title:

    一种自行车助力装置、助力自行车及助力调节方法


    Contributors:
    ZHAO NING (author) / DU MINBO (author)

    Publication date :

    2024-08-30


    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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