The invention relates to a light-weight frame assembly for a heavy truck, which belongs to the technical field of vehicle chassis and comprises a left longitudinal beam and a right longitudinal beam, a plurality of cross beams are mounted between the left longitudinal beam and the right longitudinal beam, and the cross beams sequentially comprise a front reinforcing beam, a first cross beam, a second cross beam, a back-to-back cross beam, a tubular cross beam and a tail beam from front to back. The two ends of the cross beams are connected with the left longitudinal beam and the right longitudinal beam through an upper connecting plate and a lower connecting plate, the two ends of the first cross beam, the back-to-back cross beam, the tubular cross beam and the tail beam and the corresponding upper connecting plate and the corresponding lower connecting plate form an n-shaped structure, the area of the upper connecting plate is smaller than that of the lower connecting plate, and the two connecting plates at the ends of the second cross beam are in an up-down integral type. A front spring rear support is arranged at the position of the second cross beam, the anti-bending stress of the frame is reduced, the stress concentration phenomenon is improved, and the thicknesses of the first cross beam, the second cross beam, the back-to-back cross beam, the tubular cross beam and the tail beam are optimized according to the arrangement of all assemblies of the whole vehicle.

    本发明涉及一种重型汽车用轻量化车架总成,属于车辆底盘技术领域,包括左纵梁、右纵梁,左纵梁与右纵梁之间安装有若干个横梁,若干个横梁由前到后依次包括前加强梁、第一横梁、第二横梁、背靠背横梁、管状横梁及尾梁,所有的横梁两端均通过上下两块连接板与左纵梁和右纵梁相连,第一横梁、背靠背横梁、管状横梁、尾梁两端与相应的上下连接板之间呈几字形结构,上连接板的面积小于下连接板的面积,第二横梁端部的两块连接板为上下整体式的。在第二横梁位置处布置前簧后支架,减小车架抗弯扭应力,改善应力集中现象,根据整车各总成的布置,优化第一横梁、第二横梁、背靠背横梁、管状横梁及尾梁厚度。


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    Title :

    Lightweight frame assembly for heavy-duty car


    Additional title:

    一种重型汽车用轻量化车架总成


    Contributors:
    LIU DANDAN (author) / ZHAO QIANG (author) / WANG JIBIN (author) / LI XU (author)

    Publication date :

    2023-03-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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