The invention discloses a transmission assembly for a bicycle and an electric bicycle. One end of a transmission shaft is connected with a front driven gear in a fastening manner through a spline, a first locking bolt and a first gasket ring, and the other end of the transmission shaft is in fastening connection with a rear driving gear through a spline, a spring, a second gasket ring and a second locking bolt; a front protection cover and a rear protection cover are arranged at the two ends of a protection tube arranged on the transmission shaft in a sleeving manner respectively; the front protection cover is connected with a front box body through a connecting bolt, and a middle shaft is arranged in the front box body through a third bearing; the middle shaft is fixedly sleeved with a front driving gear; the front driven gear of the transmission shaft is mounted in the front box body through a first bearing, and is meshed with a front driving gear; and the rear protection cover is connected with a rear box body through a connecting bolt, and the rear driving gear of the transmission shaft is mounted in the rear box body through a second bearing. The transmission assembly is stable in transmission power, the waste rate of parts is reduced, the service life is prolonged, and the cost is reduced.
Transmission assembly for bicycle and electric bicycle
2015-08-26
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Electric bicycle transmission device and electric bicycle
European Patent Office | 2021
|Bicycle shifter, bicycle transmission device, and bicycle electric system
European Patent Office | 2018
|BICYCLE SHIFTER, BICYCLE TRANSMISSION DEVICE, AND BICYCLE ELECTRIC SYSTEM
European Patent Office | 2017
|Bicycle shifter, bicycle transmission device, and bicycle electric system
European Patent Office | 2021
|BICYCLE SHIFTER, BICYCLE TRANSMISSION DEVICE, AND BICYCLE ELECTRIC SYSTEM
European Patent Office | 2016
|