The invention particularly relates to a stepless speed change transmission device and an electric bicycle. The stepless speed change transmission device comprises a first motor, a second motor, a first planetary gear mechanism, a second planetary gear mechanism, an idle wheel assembly, a pedal assembly and a chain wheel assembly. The first planetary gear mechanism and the second planetary gear mechanism share the same inner and outer gear ring, and the idle gear is arranged on the idle gear shaft through a bearing sleeve; the pedal shaft is sleeved with the pedal gear through a fourth overrun clutch. The first planetary gear is respectively meshed with the first sun gear and the inner teeth of the gear ring; the second planetary gear is meshed with the second sun gear and inner teeth of the gear ring, outer teeth of the gear ring are meshed with the idle gear, and the idle gear is meshed with the pedal gear. A first motor shaft of the first motor sequentially penetrates through the first overrun clutch and the first sun gear; a second motor shaft of the second motor sequentially penetrates through the second overrun clutch and the third overrun clutch. Therefore, the power is easier, more stable and smoother during riding.
本发明具体涉及一种无级变速传动装置和电动自行车。无级变速传动装置,包括第一电机、第二电机、第一行星齿轮机构、第二行星齿轮机构、惰轮组件、脚蹬组件、牙盘组件;第一行星齿轮机构和第二行星齿轮机构为共用同一内外齿圈,惰轮通过轴承套设于惰轮轴上;脚蹬齿轮通过第四超越离合器套设于脚蹬轴上;第一行星齿轮分别与第一太阳轮、齿圈内齿啮合;第二行星齿轮分别与第二太阳轮、齿圈内齿啮合,齿圈外齿与惰轮啮合,惰轮与脚蹬齿轮啮合;第一电机的第一电机轴依次穿设第一超越离合器和第一太阳轮;第二电机的第二电机轴依次穿设第二超越离合器、第三超越离合器。如此能够使得骑行时动力更加轻松、平稳和顺畅。
Stepless speed change transmission device and electric bicycle
无级变速传动装置和电动自行车
2025-03-07
Patent
Electronic Resource
Chinese
Stepless speed change device, transmission device and bicycle
European Patent Office | 2023
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