The invention discloses a The front auxiliary frame assembly comprises an upper vehicle plate, a lower vehicle plate and a control tower, the upper vehicle plate, the lower vehicle plate and the control tower are connected with one another, the control tower is elastically welded to the upper vehicle plate and the lower vehicle plate respectively, communicated suspension mounting holes are formed in the upper vehicle plate and the lower vehicle plate, sinking grooves are formed near the suspension mounting holes, sleeve holes are further formed in the upper vehicle plate and the lower vehicle plate, and a plurality of pits are formed in the periphery of the sleeve holes; elastic connection is conducted at the connecting positions of the upper vehicle plate and the lower vehicle plate with the control tower through flanging structures, so that stress distribution of the connecting positions is uniform, the deformation space of the control tower is increased, and then the fatigue life of the connecting positions is prolonged. The sinking grooves are formed in the direction opposite to the connecting direction of the suspension mounting holes and the vehicle body, and the fatigue life of the suspension mounting holes is prolonged through deformation of the sinking grooves; the pits are formed in the periphery of the sleeve holes, deformation of the sleeve holes is caused by extrusion of counter bores, and then weld joint connection is not needed, so that fatigue failure caused by weld joints is avoided, and the service life is prolonged.

    本发明公开了一种前副车架总成,包括相互连接的上车板和下车板以及塔台,塔台分别与上车板和下车板弹性焊接,上车板和下车板上设有连通的悬置安装孔,悬置安装孔附近设有沉槽,上车板和下车板上还设有套管孔,套管孔周围设有若干凹坑;通过在上车板和下车板与塔台连接的位置通过翻边结构来进行弹性连接,使得连接位置的应力分布较为均匀以及增加了塔台的形变空间,进而提高了连接位置的疲劳寿命。还通过在悬置安装孔与车体连接的反方向上设置沉槽,通过沉槽的形变来提高悬置安装孔的疲劳寿命;通过在套管孔周围设置凹坑,通过沉孔的挤压导致套管孔变形,进而无需进行焊缝连接,从而避免了焊缝产生的疲劳失效,提高了使用寿命。


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    Title :

    Front auxiliary frame assembly


    Additional title:

    一种前副车架总成


    Contributors:
    ZHU DONG (author) / ZHU ZUI (author) / CAO FEI (author) / YIN JUNLONG (author)

    Publication date :

    2021-04-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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