The invention relates to the technical field of bicycles, in particular to a gear shaft transmission assembly, a bicycle driving mechanism and a bicycle. The gear shaft transmission assembly comprisesa side tooth gear, a transmission shaft and a reversing transmission assembly meshed with the side tooth gear. The reversing transmission assembly comprises a rotary disc fixed to the end of the transmission shaft and a plurality of rolling pieces arranged on the rotary disc. A small rotating shaft is arranged in the rolling piece in a sleeved mode, the rolling piece can rotate relative to the small rotating shaft, the side tooth gear comprises a body and a plurality of teeth, the teeth are fixed to one side face of the body, and one rolling piece stretches into the position between every twoadjacent teeth from the opposite direction of the radial direction of the body to be meshed with the side tooth gear. According to the gear shaft transmission assembly, friction force is reduced to the maximum extent, riding is more convenient, the power loss rate is far lower than that of an existing double-bevel-gear transmission mode due to the fact that the straight teeth are meshed with thesurfaces of the rolling pieces, power loss is extremely low, riding is convenient, and labor is saved.
本发明涉及自行车技术领域,具体涉及一种齿轴传动组件、自行车驱动机构及其自行车,齿轴传动组件包括侧齿齿轮、传动轴、以及与侧齿齿轮啮合的换向传动组件,所述换向传动组件包括固定于传动轴端部的转盘以及设置于转盘的多个滚动件,所述滚动件内套设有小转轴且滚动件可相对小转轴旋转,所述侧齿齿轮包括本体、和多根齿牙,所述多根齿牙固定于本体的一侧面,所述其中一个滚动件由本体的径向方向的反方向伸入相邻的两根齿牙之间与侧齿齿轮完成啮合。该齿轴传动组件最大限度地降低了摩擦力,使得骑行更加轻便,采用直齿和滚动件表面啮合的啮合方式动力损耗率远远低于现有的双锥形齿轮的传动方式,动力损耗极低,骑行轻便,省力。
Gear shaft transmission assembly, bicycle driving mechanism and bicycle thereof
一种齿轴传动组件、自行车驱动机构及其自行车
2020-11-06
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Bicycle, bicycle control device and bicycle gear shifting mechanism thereof
European Patent Office | 2022
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