The invention belongs to the technical field of electric bicycles, and particularly relates to a hub motor stepless speed change device which comprises a main shaft, a motor assembly, a hub, a planet row assembly and a flywheel. The hub, the planet row assembly and the flywheel are sequentially arranged on the main shaft in a sleeving mode, the planet row assembly at least comprises a first planet row and a second planet row which are connected with each other in the axial direction of the planet row assembly, and each of the first planet row and the second planet row comprises an outer gear ring, a sun gear, a planet gear and a planet carrier; one end of a sun gear of the first planet row extends into the hub and is connected with the motor assembly; a planet carrier of the first planet row penetrates through a planet wheel, one end of the planet carrier of the first planet row is connected with a hub, and the other end of the planet carrier of the first planet row is connected with a sun wheel of the second planet row. And one end of a planet carrier of the second planet row is connected with the planet wheel, and the other end is connected with the flywheel. Power coupling of the flywheel and the motor is output to the wheel through the hub, the power assisting and stepless speed changing functions are achieved, the large speed ratio and the high rotating speed and small torque of the motor assembly can be achieved, and mechanism light weight is facilitated.

    本申请属于电动自行车技术领域,具体涉及一种轮毂电机无级变速装置,包括主轴、电机组件、轮毂、行星排组件和飞轮;轮毂、行星排组件和飞轮依次套设在主轴,行星排组件沿其轴向至少包括相互连接的第一行星排和第二行星排,第一行星排和第二行星排均包括外齿圈、太阳轮、行星轮和行星架;第一行星排的太阳轮一端伸入轮毂内部与电机组件连接;第一行星排的行星架穿过其行星轮,第一行星排的行星架的一端与轮毂连接,另一端与第二行星排的太阳轮连接;第二行星排的行星架的一端与其行星轮连接,另一端与飞轮连接。本申请将飞轮和电机的动力耦合经轮毂输出到车轮,实现助力和无级变速功能,能够实现大速比和电机组件高转速小扭矩,有利于机构轻量化。


    Access

    Download


    Export, share and cite



    Title :

    Hub motor stepless speed change device


    Additional title:

    一种轮毂电机无级变速装置


    Contributors:
    ZHANG RUCHU (author)

    Publication date :

    2024-01-12


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Stepless speed change middle motor

    YAN ZHENHUA | European Patent Office | 2023

    Free access

    Self-adaptive stepless speed change middle motor

    YAN ZHENHUA | European Patent Office | 2023

    Free access

    Stepless speed change mechanism

    HUANG SHANJING | European Patent Office | 2023

    Free access

    STEPLESS SPEED CHANGE DEVICE FOR BICYCLE

    OISHI YASUHIRO | European Patent Office | 2018

    Free access

    Tractor stepless speed change transmission device

    LU FENGXIANG / WEI HAIQI / WANG ZHENGLI | European Patent Office | 2021

    Free access