The invention relates to a lead screw support and bearing assembly for a heavy-load electric steering gear, which is characterized in that two groups of thrust bearing retainers are respectively arranged on two sides of a spacer ring, and a plurality of thrust bearing rollers are uniformly distributed on the circumference taking a lead screw rod as a center shaft. The radial bearing roller is arranged between the radial bearing outer ring and the radial bearing inner ring to form a radial bearing of the bearing assembly, the two sets of thrust bearing retainers, the space rings and other components form a main body of the thrust bearing, and the thrust bearing seat ring and the check ring on the screw rod form a seat ring of the thrust bearing. A radial bearing and a thrust bearing which are originally arranged on the shaft diameter of the lead screw side by side are integrated in one bearing assembly, so that the overall axial size of the bearing assembly is greatly reduced, the boundary dimension of the electric power steering gear is further reduced, and on the basis of keeping the original bearing capacity, the electric power steering gear is convenient to install and arrange, and the service life of the electric power steering gear is prolonged. And the service life is also prolonged.

    本发明涉及一种重载电动转向器丝杠支撑及轴承组件,本发明的重载电动转向器丝杠支撑及轴承组件,两组推力轴承保持架分别设置于隔环的两侧,若干推力轴承滚子均布于以丝杠杆为中轴的圆周上。向心轴承滚子置于向心轴承外圈与向心轴承内圈之间,其构成了该轴承组件的向心轴承,而两组推力轴承保持架、隔圈等部件构成了推力轴承的主体,推力轴承座圈及丝杠杆上的挡圈形成了推力轴承的座圈,其将原有的在丝杠轴径上并排布置的向心轴承和推力轴承集成在一个轴承组件内,从而大大减小了轴承组件的整体轴向尺寸,进而减小了电动助力转向器丝外形尺寸,使其在保持原有承载能力的基础上,方便了其安装与布置,也提高了其使用的寿命。


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    Title :

    Heavy-load electric steering gear lead screw support and bearing assembly


    Additional title:

    一种重载电动转向器丝杠支撑及轴承组件


    Contributors:
    LIANG PEIGEN (author) / LIU SHOUYIN (author) / CHEN HAOLI (author) / ZOU LIN (author)

    Publication date :

    2023-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16C SHAFTS , Wellen / B62D MOTOR VEHICLES , Motorfahrzeuge / F16H Getriebe , GEARING



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