The invention provides a U-shaped spline hub bearing and driving shaft connecting structure, which comprises a shaft wheel, a sealing ring and a spline sleeve. The shaft wheel comprises an outer wheel, a steel ball, a retainer, an inner wheel and a sealing ring, the small end of the shaft wheel fixes the inner wheel through spin riveting, U-shaped splines formed by connecting an inner hole, an end face and an outer circle into a whole are machined at the spin riveting end of the shaft wheel, and each key is in taper-shaped smooth transition at the joint of the end face, the outer circle and the inner hole. The spline shell is sleeved on the end portion of the U-shaped spline of the shaft wheel, a U-shaped ring groove is arranged on the end face of the spline shell, U-shaped spline teeth which are connected into a whole are arranged on the inner diameter face, the groove bottom face and the outer diameter face of the ring groove, and the spline teeth are connected with the U-shaped spline on the end portion of the shaft wheel in a meshed mode. The U-shaped spline hub bearing is in three-face meshing connection, torque transmission is carried out after the U-shaped spline is connected with a driving shaft unit, the positioning precision is improved, the driving torque is improved, the weight of the hub bearing is reduced, light weight and miniaturization are achieved, the friction torque of the bearing is reduced, and the purpose of reducing energy consumption is achieved.

    一种U型花键的轮毂轴承与驱动轴连接结构,包括轴轮、密封环和花键套;所述的轴轮包括外轮、钢球、保持器、内轮和密封圈,轴轮小端通过旋铆将内轮固定,在轴轮旋铆端部加工出由内孔、端面及外圆三面连为一体的U形花键,每个键在端面与外圆和内孔的连接处呈锥度形圆滑过渡;所述的花键套套装在轴轮U形花键的端部,花键套端面上设置U形环槽,环槽的内径、槽底及外径三个面上设置连为一体的U形键齿,键齿与轴轮端部的U形花键啮合连接。该轮毂轴承的U形花键为三面啮合连接,与驱动轴单元连接后进行扭矩传输,提高了定位精度,提升了驱动扭矩,减轻了轮毂轴承的重量,实现了轻量化、小型化,减小了轴承自身的摩擦力矩,达到降低能耗的目的。


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    Title :

    U-shaped spline hub bearing and driving shaft connecting structure


    Additional title:

    一种U型花键的轮毂轴承与驱动轴连接结构


    Contributors:
    ZHANG YUNTAO (author) / JIAO JINGMING (author) / DU YUHUI (author) / DING XIAOXUAN (author) / SHENG SHIZHONG (author) / LI SHANGYONG (author) / LYU WENJING (author) / SONG ZHAO (author) / HU YANWEI (author) / LI JUNJIE (author)

    Publication date :

    2021-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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