The invention belongs to the technical field of bicycle speed control systems, and discloses a speed control system and a bicycle. In the speed control system, a sun gear of a planetary gear set is coaxially and fixedly connected with a multi-stage driving wheel set to form an amplification wheel set, and an inner gear ring is fixed to a shell; a planet carrier of the planetary gear set, a sun gear and the multi-stage driving wheel set are all rotatably arranged on the power shaft, the multi-stage driven wheel set is rotatably arranged on the output shaft, and a third clutch transmission assembly is arranged between the output shaft and each stage of the multi-stage driven wheel set. The first limiter can drive the first limiting shaft to enable the gear shifting convex part of the first limiting shaft to abut against the first clutch transmission assembly to enable the power shaft to be in transmission connection with the planet carrier, or drive the first limiting shaft to enable the gear shifting convex part of the first limiting shaft to abut against the second clutch transmission assembly to enable the power shaft to be in transmission connection with the amplification wheel set; the second limiting stopper can drive the second limiting shaft to enable the gear shifting convex part of the second limiting shaft to abut against any third clutch transmission assembly so that the corresponding driven wheel can be in transmission connection with the output shaft.
本发明属于自行车变速系统技术领域,公开了一种变速系统和自行车,该变速系统中行星齿轮组的太阳轮与多级主动轮组同轴固定连接形成放大轮组,内齿圈固定在壳体上,行星齿轮组的行星架、太阳轮和多级主动轮组均可转动设置在动力轴上,多级从动轮组可转动设置在输出轴上,且输出轴和多级从动轮组的每一级之间均设有第三离合传动组件;第一限位器可带动第一限位轴使其换档凸部抵接第一离合传动组件使得动力轴与行星架之间传动连接,或带动第一限位轴使其换档凸部抵接第二离合传动组件使得动力轴与放大轮组之间传动连接;第二限位器可带动第二限位轴使其换档凸部抵接任一第三离合传动组件使得其对应的从动轮与输出轴之间传动连接。
Speed change system and bicycle
变速系统和自行车
2025-05-02
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Bicycle speed variator, bicycle, and method and device for speed change of bicycle
European Patent Office | 2015
|