The invention belongs to the technical field of bicycles, and particularly relates to a bicycle closed externally-hung driving wheel coaxial gearbox. The gearbox comprises a gear box shell, a drivinghammer seat and an inner gear ring gear connecting piece; a planetary gear bearing, a sun gear bearing and an inner gear ring gear bearing are arranged between the gear box shell and the inner gear ring gear connecting piece; and a planet gear is installed on the planet gear bearing, a sun gear is installed on the sun gear bearing, an inner gear ring gear is installed on the inner gear ring gear bearing, and the inner gear ring gear is fixedly connected with the inner gear ring gear connecting piece. The limitation that a front-drive bicycle has no manual speed change is broken through; the whole device is small in size and convenient to install, gear transmission is safe and firm, and the risk of chain falling is avoided; and the structure is fully sealed, the trouble of maintenance is avoided, the rotating speed ratio can be changed by changing the corresponding size and tooth number, or the multi-speed-change effect is achieved through series connection under the condition that thespace is permitted.

    本发明属于自行车技术领域,具体涉及自行车封闭式外挂主动轮同轴齿轮箱,包括齿轮箱壳、击锤座和内齿圈齿轮连接件,所述齿轮箱壳和内齿圈齿轮连接件之间设有行星齿轮轴承、太阳齿轮轴承和内齿圈齿轮轴承,所述行星齿轮轴承上安装有行星齿轮,所述太阳齿轮轴承上安装有太阳齿轮,所述内齿圈齿轮轴承上安装有内齿圈齿轮,所述内齿圈齿轮与所述内齿圈齿轮连接件固定连接;本发明打破了前驱自行车无手动变速的限制;整个装置体积较小,安装方便,齿轮传动安全牢固,没有掉链子的风险;而且结构全密封,免去了维护的麻烦,改变对应的尺寸和齿数就可改变转速比,或者在空间许可的情况下串联使用,来达到多重变速的效果。


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    Title :

    Closed externally-hung driving wheel coaxial gear box of bicycle


    Additional title:

    自行车封闭式外挂主动轮同轴齿轮箱


    Contributors:
    CHE JING (author)

    Publication date :

    2020-06-12


    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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