The invention discloses an easy-to-assemble central motor adopting first-stage gear speed reduction transmission. The central motor comprises a shell, and a motor core, a middle shaft, a one-way clutch, a first-stage gear reduction mechanism and a crankset positioning shaft sleeve which are installed in the shell, and the crankset positioning shaft sleeve is arranged on the middle shaft and used for fixing a crankset. The motor core is in the form of an outer rotor and an inner stator and comprises a rotor, a stator and a core shaft parallel to the middle shaft, and the stator comprises an annular stator support arranged on the periphery of the core shaft and fixed to the inner wall of the shell, and a stator coil thereof. The one-way clutch is characterized in that the one-way clutch is arranged on the core shaft and is connected with the rotor; the annular stator support and the shell are respectively provided with at least one machine core shaft bearing used for supporting the coreshaft; one end of the core shaft extends out of the annular stator support to form a cantilever; and the cantilever is in transmission connection with the crankset positioning shaft sleeve through thefirst-stage gear speed reduction mechanism. On the basis of keeping the functions of the original central motor, the motor is easier to assemble and lower in production cost, and the production efficiency can be remarkably improved.

    本发明公开了一种采用一级齿轮减速传动的易装配式中置电机,包括壳体和安装在壳体内的电机机芯、中轴、单向离合器、一级齿轮减速机构和设于中轴上用于固定牙盘的牙盘定位轴套,电机机芯为外转子内定子形式,包括转子、定子及平行中轴的机芯轴,定子包括设于机芯轴外围并与壳体内壁固定的环形定子支架及其定子线圈;其特征在于所述单向离合器被设置在机芯轴上并与转子相连,环形定子支架与壳体上均安装至少一个用于支撑机芯轴的机芯轴轴承,而机芯轴的一端伸出环形定子支架形成悬臂,该悬臂与牙盘定位轴套之间通过所述一级齿轮减速机构传动连接。本发明在保持原有中置电机功能的基础上,更易装配,生产成本更低,而能够显著提高生产效率。


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    Title :

    Easy-to-assemble central motor adopting first-stage gear speed reduction transmission


    Additional title:

    采用一级齿轮减速传动的易装配式中置电机


    Contributors:
    WEN QUNFENG (author)

    Publication date :

    2020-07-31


    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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