The invention relates to the technical field of bicycles, in particular to a bicycle rear axle transmission structure and a bicycle. The bicycle rear axle transmission structure comprises a driving flywheel, a rear hub, a single-speed flywheel and a variable-speed flywheel, and the driving flywheel is arranged on a bicycle frame; the rear hub is arranged on the bicycle frame and comprises a first assembly section, a second assembly section and a hub body which are sequentially connected with the same center line; one of the single-speed flywheel and the variable-speed flywheel is mounted on the rear hub, the single-speed flywheel is mounted on the first assembly section, the variable-speed flywheel is mounted on the first assembly section and sleeves the second assembly section, and the driving flywheel is in transmission connection with the single-speed flywheel or the variable-speed flywheel. If the variable-speed flywheel is damaged after being used for a long time, the single-speed flywheel can be installed at the installation position of an original variable-speed flywheel; due to the fact that a part of the variable-speed flywheel is arranged on the second assembly section in a sleeved mode, the single-speed flywheel is only installed on the first assembly section, and the transmission center of the single-speed flywheel and the transmission center of the driving flywheel are opposite and cannot deflect, so that the bicycle with the single-speed flywheel replaced can be used normally.
本发明涉及自行车技术领域,尤其涉及一种自行车后轴传动结构及自行车,自行车后轴传动结构包括主动飞轮,后花鼓、单速飞轮和变速飞轮,主动飞轮设置在车架上;后花鼓设置在车架上,后花鼓包括同中心线依次连接的第一装配段、第二装配段和花鼓主体;单速飞轮和变速飞轮择一安装于后花鼓,单速飞轮安装于第一装配段,变速飞轮安装于第一装配段并套设于第二装配段,主动飞轮与单速飞轮或变速飞轮传动连接。若变速飞轮在长时间使用后损坏时,可将单速飞轮安装在原变速飞轮的安装位置,由于变速飞轮有一部分套设在第二装配段,而单速飞轮只安装在第一装配段,单速飞轮与主动飞轮的传动中心相对不会偏斜,则更换了单速飞轮后的自行车可以正常使用。
Bicycle rear axle transmission structure and bicycle
一种自行车后轴传动结构及自行车
2021-10-15
Patent
Elektronische Ressource
Chinesisch
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