The invention discloses a bicycle front derailleur and a variable-speed bicycle applying the same, the bicycle front derailleur comprises a gearbox, the gearbox comprises a variable-speed assembly, the variable-speed assembly comprises a driving assembly, a gear set, a worm gear assembly, a worm assembly, an output assembly, a fixing support and a limiting assembly, the driving assembly is connected with a battery assembly and the gear set, and the gear set is connected with the output assembly; the gear set is coaxially connected with the worm assembly, the worm assembly is in meshed connection with the worm gear assembly, the worm gear assembly is in transmission connection with the output assembly, the driving assembly, the gear set, the worm gear assembly and the worm assembly are all arranged in the fixing support, and the limiting assembly is arranged on the side edge of the fixing support and used for axially limiting the worm assembly and radially limiting the worm gear assembly. According to the motor unit, the limiting assemblies are used for limiting and fixing the assemblies assembled on the fixing support at the same time, and when the assemblies need to be replaced, the assemblies on the fixing support can be rapidly replaced by disassembling the limiting assemblies, so that the assembling and disassembling efficiency of the motor unit is improved.

    本发明公开了一种自行车前变速器及应用其的变速自行车,自行车前变速器包括变速箱,变速箱包括变速组件,变速组件包括驱动组件、齿轮组、蜗轮组件、蜗杆组件、输出组件、固定支架和限位组件,驱动组件分别与电池组件和齿轮组连接,齿轮组与蜗杆组件同轴连接,蜗杆组件与蜗轮组件啮合连接,蜗轮组件与输出组件传动连接,驱动组件、齿轮组、蜗轮组件、蜗杆组件均设置于固定支架中,限位组件设置于固定支架的侧边,对蜗杆组件进行轴向限位和对蜗轮组件进行径向限位。本发明利用限位组件同时对组装在固定支架上的组件进行限位固定,在组件需要更换时,拆除限位组件即可实现固定支架上的组件的快速更换,如此,提高了马达单元的组装和拆卸效率。


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    Title :

    Bicycle front derailleur and variable speed bicycle applying same


    Additional title:

    一种自行车前变速器及应用其的变速自行车


    Contributors:

    Publication date :

    2024-11-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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