A transmission part of an electric power-assisted bicycle comprises a shell, and a driving motor and a pedal shaft are arranged in the shell. The pedal shaft is provided with an anti-clamping wheel through a spline. First convex teeth are annularly distributed on the upper surface of the anti-clamping wheel. The outer side of the pedal shaft is sleeved with a pedal outer shaft. An annular anti-clamping cavity is formed in the inner side surface of the pedal outer shaft. Second convex teeth used for being meshed with the first convex teeth on the anti-clamping wheel are arranged on the surface of one side of the anti-clamping cavity, and a first elastic assembly is fixedly assembled on the other side of the anti-clamping cavity. A conversion wheel is movably assembled at the end, close to a crankset, of the pedal outer shaft, a first movable cavity is formed in the side, facing the pedal outer shaft, of the conversion wheel, and an adsorption assembly is fixedly arranged at the bottom of the first movable cavity. a return wheel is movably arranged on the other end of the pedal outer shaft, a second movable cavity is formed in the side, facing the pedal outer shaft, of the return wheel, and a second elastic assembly is arranged at the bottom of the second movable cavity. The power assisting design is simplified, the cost is effectively reduced, maintenance is easy, and replacement is convenient.
一种电动助力自行车传动件,包括壳体,壳体内设有驱动电机和踏板轴。所述踏板轴通过花键装配有防卡轮。所述防卡轮的上表面环形分布有第一凸齿。所述踏板轴外侧套设有踏板外轴。所述踏板外轴的内侧表面设有环形的防卡腔。防卡腔的一侧表面设有用于与防卡轮上的第一凸齿啮合的第二凸齿,另一侧固定装配有第一弹性组件。踏板外轴的靠近牙盘的一端活动装配有转换轮,转换轮朝向踏板外轴的一侧设有第一活动腔,第一活动腔底部固设有吸附组件。踏板外轴的另一端活动装配有回复轮,回复轮朝向踏板外轴的一侧设有第二活动腔,第二活动腔底部设有第二弹性组件。本发明简化助力设计,有效降低成本,维护简单,更换方便。
Transmission part of electric power-assisted bicycle
一种电动助力自行车传动件
2021-10-01
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
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