The invention relates to the technical field of high-end equipment manufacturing, in particular to a sawtooth-shaped clamping groove nut anti-loosening assembly and method for a hub bearing unit, the anti-loosening assembly comprises a split ring, a sawtooth-shaped elastic piece and a locking nut, the sawtooth-shaped elastic piece and the locking nut are fixed to the split ring, and the sawtooth-shaped elastic piece is arranged at the radial open end of the split ring; a plurality of clamping grooves embedded in the sawtooth-shaped elastic piece are formed in the locking nut in the circumferential direction, the working angle of the sawtooth-shaped elastic piece is equal to the first groove angle of the locking nut, when the locking nut rotates reversely, the sawtooth-shaped elastic piece is in surface contact with the first end of the clamping groove, reverse rotation of the locking nut is limited, and the working angle of the sawtooth-shaped elastic piece is equal to the first groove angle of the locking nut. The axial pre-tightening force of the hub bearing is stabilized, the bearing clearance of the hub bearing is kept within a set value, the mechanical performance of the hub bearing unit is improved, the service life of the hub bearing unit is prolonged, and the driving safety of an automobile is improved.

    本发明涉及高端装备制造技术领域,尤其是一种轮毂轴承单元的锯齿形卡槽螺母防松组件及方法,防松组件包括开口环、固定于所述开口环上的锯齿形弹片和锁紧螺母,所述锯齿形弹片设置于开口环的径向开口端,所述锁紧螺母上周向设有若干个嵌设于所述锯齿形弹片的卡槽,锯齿形弹片的工作角与锁紧螺母的第一槽角大小相等,当锁紧螺母反向转动时,锯齿形弹片与卡槽的第一端部呈面接触,限制锁紧螺母反向转动,稳定轮毂轴承轴向预紧力的大小,保持轮毂轴承的轴承游隙位于设定值内,提升轮毂轴承单元的机械性能,延长轮毂轴承单元的使用寿命,提高汽车行驶安全性。


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    Title :

    Sawtooth-shaped clamping groove nut anti-loosening assembly and method for hub bearing unit


    Additional title:

    一种轮毂轴承单元的锯齿形卡槽螺母防松组件及方法


    Contributors:
    PAN JIANLI (author) / HUANG GUOYAN (author) / LIU JIANXIONG (author) / CHEN JIGANG (author)

    Publication date :

    2023-09-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16C SHAFTS , Wellen



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