The invention relates to a maintenance-free disconnected balance shaft assembly and a balanced suspension system, and belongs to the technical field of rear balanced suspensions of heavy-duty cars. The balanced suspension system mainly comprises balance shaft assemblies, a plate spring, a V-shaped thrust rod and a lower thrust rod. The balance shaft assembly is mainly composed of a balance shaft support, a balance shaft shell, a flange bush, a flange and a bolt. The balance shaft assemblies are arranged on the two sides of the frame, the balance shaft support is fixed to the frame, the balance shaft shell and the plate spring are fastened into an assembly body through the U-bolts and the plate spring pressing plate, and the assembly body and the flange lining arranged on the balance shaft in a sleeving mode swing around the balance shaft together to meet the movement stroke of the suspension. The lower end of the balance shaft support is connected with one end of a lower thurst rod, and the other end of the balance shaft bracket is connected with the middle axle and the rear axle; and two ends of the V-shaped propelling rod are fixed on the frame cross beam, the middle axle and the rear axle. The suspension system is reliable in fastening, torsion resistance of the suspension system is guaranteed, the balance shaft support and the balance shaft shell are of a cavity and rib plate matched structure, high-performance ductile iron is adopted, the structure is light, and cost is low.

    本发明涉及免维护断开式平衡轴总成及平衡悬架系统,属于重型汽车后平衡悬架技术领域。平衡悬架系统主要包括:平衡轴总成,板簧、V型推力杆和下推力杆,平衡轴总成主要由平衡轴支架、平衡轴壳、凸缘衬套、法兰及螺栓组成。平衡轴总成布置在车架两侧,平衡轴支架与车架固定,平衡轴壳与板簧通过骑马螺栓、板簧压板紧固为一装配体,与套装在平衡轴上的凸缘衬套一起绕平衡轴摆动以满足悬架的运动行程。平衡轴支架下端与下推力杆一端连接,另一端与中、后桥连接;V型推力杆两端固定在车架横梁与中、后桥上。悬架系统紧固可靠,保证悬架系统抗扭转性能,平衡轴支架和平衡轴壳为腔体和筋板配合结构,并采用高性能球铁,结构轻量化,成本低。


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    Title :

    Maintenance-free disconnected balance shaft assembly and balanced suspension system


    Additional title:

    免维护断开式平衡轴总成及平衡悬架系统


    Contributors:
    YANG YINHUI (author) / FAN XUEQIONG (author) / WANG YUAN (author)

    Publication date :

    2021-04-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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