The invention discloses a bicycle middle stepless speed change power assisting device based on a planetary gear speed change mechanism. The bicycle middle stepless speed change power assisting device comprises a speed change system and a power assisting system. The power assisting system comprises a parallel power input source and a power assisting system, wherein the parallel power input source is composed of a power assisting motor and a pedal middle shaft; the variable-speed motor is connected with a sun gear in the planetary gear mechanism assembly, the power-assisted motor is connected with an outer gear ring in the planetary gear mechanism assembly, and the pedal middle shaft is connected with the outer gear ring in the planetary gear mechanism assembly. The speed control system and the power assisting system are assembled in the same shell and work under the same control system, the integration degree of the device is improved, the installation and debugging steps are simplified, the number of overall parts is reduced, and the severe environment influence is effectively reduced. A double-power-source input mode based on a planetary gear mechanism is adopted, on the basis of normal auxiliary power-assisted treading riding, stepless speed change output with a wide speed change range is overlaid, the output rotating speed ratio can be continuously adjusted while power-assisted riding is achieved, and power flow is not interrupted.
本发明公开一种基于行星齿轮变速机构的自行车中置无级变速助力装置,包括:变速系统及助力系统;助力系统包括:并联动力输入源,且并联动力输入源由助力电机及踏板中轴组成;变速电机与行星齿轮机构组件中的太阳轮连接,助力电机与行星齿轮机构组件中的外齿圈连接,踏板中轴与行星齿轮机构组件中的外齿圈连接。变速系统与助力系统被装配在同一壳体内部,在同一控制体系下工作,提高了装置集成度,简化安装了调试步骤,减少了整体零件数量,也有效降低恶劣了环境影响;采用基于行星齿轮机构的双动力源输入形式,在正常辅助助力踩踏骑行的基础上,叠加宽变速范围的无级变速输出,实现了助力骑行的同时可以连续调节输出转速比,且无动力流无中断。
Bicycle middle stepless speed change power assisting device based on planetary gear speed change mechanism
基于行星齿轮变速机构的自行车中置无级变速助力装置
2024-06-14
Patent
Electronic Resource
Chinese
Double-planetary-gear-train stepless speed change hybrid power device and system
European Patent Office | 2024
|