The invention relates to the technical field of bicycles, and discloses a shaft transmission structure of a variable-speed bicycle. The structure comprises a frame, a rear transmission gear and a front transmission gear, and at least two groups of gears are arranged on each of the rear transmission gear and the front transmission gear. According to the shaft transmission structure of the variable-speed bicycle, during assembling, the rear transmission shaft sleeve and the front transmission shaft sleeve can move respectively, the motor is meshed with the rear transmission gear and the front transmission gear in sequence without interference, the requirement on the matching precision is greatly reduced, production and assembly difficulties are reduced, ordinary people can also assemble andsimply maintain, and it is convenient to be widely applied; when the gear on one side is excessively abraded, only the abraded gear needs to be replaced, the whole gear does not need to be replaced, the use cost is reduced, the middle shaft and the rear shaft can change the speed, multi-stage speed changing is achieved through the simple structure, weight distribution is uniform, the structure islight, riding is relatively easy, and the speed changing structure is simple, convenient to maintain and high in reliability.
本发明涉及自行车技术领域,且公开了一种可变速自行车的轴传动结构,包括车架、后传动齿轮和前传动齿轮,所述后传动齿轮和前传动齿轮上均至少设有两组齿轮。该可变速自行车的轴传动结构,在装配时,后传动轴套和前传动轴套可分别移动,依次与后传动齿轮和前传动齿轮啮合,互不干扰,对配合精度的要求大大降低,降低生产和装配难度,普通人也可装配和简单维修,便于普及,另一方面,一侧齿轮过度磨损时可以只更换磨损齿轮,不用整体更换,降低使用成本,其次,中轴和后轴均可变速,简单的结构实现多级变速,同时重量分布均匀,结构较轻,骑行时相对轻松,同时变速结构简单,便于维护,可靠性较高。
Shaft transmission structure of variable-speed bicycle
一种可变速自行车的轴传动结构
2020-05-19
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Infinitely variable speed hydraulic transmission bicycle
European Patent Office | 2015
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