The invention relates to a mechanical structure for automatic speed change and stepless speed change of a bicycle, which comprises a driving wheel mechanism and a driven wheel mechanism, and is characterized in that the driving wheel mechanism and the driven wheel mechanism are connected through a transmission belt to transmit torque, and a torque sensor is mounted on the driving wheel mechanism; an output signal of the torque sensor is connected with an adjusting motor installed on the driven wheel mechanism, and the adjusting motor is connected with a driven wheel driving adjusting mechanism on the driven wheel mechanism. The automatic speed changing device has the advantages that the automatic speed changing function of the bicycle according to road conditions can be achieved, the speed changing ratio of the speed changer can be adjusted through the pedal torque applied by a driver, and therefore the most suitable speed changer gear is achieved, and the force transmission efficiency of the driver is improved. Compared with a traditional bicycle transmission, the bicycle transmission is smaller in size and occupied space and simpler in structure, and the risk that a chain of a traditional bicycle is separated from a chain wheel is avoided.
本发明涉及一种用于自行车自动变速及实现无级变速的机械结构,包括主动轮机构,从动轮机构,其特征在于,主动轮机构,从动轮机构通过传动皮带连接传递力矩,在主动轮机构上安装有扭矩传感器,扭矩传感器的输出信号连接安装在从动轮机构上的调节电机,调节电机连接从动轮机构上的从动轮驱动调节机构。本发明的优点能够实现自行车根据路况自动变速的功能,能够利用驾驶员所施加的脚踏板力矩调整变速器的变速比,从而实现最适合的变速器档位,提高驾驶员的力传动效率。对比传统自行车变速器,尺寸占用空间更小,结构更简单,并且避免了传统自行车的链条与链轮脱离风险。
Mechanical structure for automatic speed change and stepless speed change of bicycle
一种用于自行车自动变速及实现无级变速的机械结构
22.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Stepless speed change device, transmission device and bicycle
Europäisches Patentamt | 2023
|