The invention belongs to the technical field of bicycle chain wheels, and particularly relates to a stepless speed change bicycle chain wheel which comprises a mounting disc, a plurality of first sliding grooves are annularly and evenly formed in the mounting disc, mounting parts are slidably assembled on a plurality of first sliding rods, one sides of the mounting parts extend out of the first sliding grooves to be fixedly connected with arc-shaped parts, the multiple arc-shaped parts jointly form a transmission piece, sliding parts extending out of the first sliding grooves are assembled at the other ends of the multiple mounting parts, the disc is provided with a driving mechanism matched with the multiple sliding parts, and the mounting disc is provided with a transmission mechanism matched with the multiple transmission teeth. The multiple arc-shaped parts simultaneously move to the side away from the center of the mounting disc, or the multiple arc-shaped parts simultaneously move to the side close to the center of the mounting disc, therefore, the diameter of the transmission part can be changed at will to achieve the speed change effect, stepless speed change is achieved, and the practicability of the chain wheel is improved.
本发明属于自行车牙盘技术领域,具体涉及一种无级变速自行车牙盘,包括安装盘,安装盘环形均匀设有若干第一滑槽,若干第一滑杆均滑动装配有安装件,若干安装件一侧均伸出第一滑槽固定连接有弧形件,若干弧形件共同组成一个传动件,若干安装件另一端均装配有伸出第一滑槽的滑动件,圆盘设有与若干滑动件相匹配的驱动机构,安装盘设有与若干传动齿相匹配的传动机构,本发明使若干弧形件同时向远离安装盘中心一侧移动,或同时向靠近安装盘中心一侧移动,这样便能随意的改变传动件的直径达到变速的作用,且为无级变速,提高牙盘的实用性。
Stepless speed change bicycle chain wheel
一种无级变速自行车牙盘
2021-11-30
Patent
Electronic Resource
Chinese
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
European Patent Office | 2023
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