The bicycle center shaft assembly comprises a mandrel, a shell, bearings, a right bearing bowl and a left bearing bowl, the mandrel penetrates through the shell, the bearings are installed at the two ends of the mandrel, the left bearing bowl covers the left side of the shell, the right bearing bowl covers the right side of the shell, and the right bearing bowl covers the right side of the shell. The left bearing bowl and the right bearing bowl press the bearing at the end of the shell, the mandrel rotates in the left bearing bowl and the right bearing bowl through the bearing, the right bearing bowl is in interference fit with the shell, a first sealing piece is arranged between the left bearing bowl and the shell, and two second sealing pieces are arranged between the left bearing bowl and the mandrel and on the outer side of the bearing. Therefore, the bearing is completely sealed. The torsion resistance of the axle center is improved by redesigning the axle center and changing the assembly mode; by arranging the first sealing piece and the second sealing piece, rainwater or dust is effectively prevented from entering the bearing, the service life of the center shaft assembly in the normal design state is guaranteed, and the running stability of the bicycle is guaranteed.

    本申请公开了一种自行车中轴组件,其包括心轴、外壳、轴承、右轴承碗和左轴承碗,所述心轴穿过外壳,所述轴承安装在心轴的两端,所述左轴承碗盖设在外壳的左侧,所述右轴承碗盖设在外壳的右侧,所述左轴承碗和右轴承碗将轴承压设在外壳的端部,所述心轴通过轴承在左右轴承碗内转动,所述右轴承碗与外壳之间过盈配合,左轴承碗与外壳之间设置有第一密封件,所述左右轴承碗与心轴之间,在轴承的外侧设置有两个第二密封件,从而达到轴承被完全密封。本申请通过对轴心的再设计及装配方式的改变提高了轴心的抗扭力;第一密封件和第二密封件的设置,有效避免了雨水或灰尘进入到轴承内,保证了中轴组件的正常设计状态寿命,确保了自行车运行的稳定性。


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    Title :

    Bicycle middle axle assembly


    Additional title:

    一种自行车中轴组件


    Contributors:
    JIA GUANGDE (author)

    Publication date :

    2024-05-24


    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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