The invention discloses a left rear mounting assembly structure of a front auxiliary frame. The left rear mounting assembly structure comprises a cabin lower cross beam left connecting plate, a frontauxiliary frame left rear fixing plate connected to the inner side of the cabin lower cross beam left connecting plate, and a cabin left longitudinal beam middle section integrated to the inner side of the front auxiliary frame left rear fixing plate; a threaded pipe is fixedly connected with the front auxiliary frame left rear fixing plate in the direction perpendicular to the front auxiliary frame left rear fixing plate. A plurality of closed cavity structures are formed at the connecting positions of the threaded pipe, the front auxiliary frame left rear fixing plate, the cabin left longitudinal beam middle section and the cabin left longitudinal beam middle section lower reinforcing plate. According to the assembly structure, the threaded pipe is welded and fixed through CO2 shielded welding, a plurality of closed cavity structures are formed at the connecting positions of the front auxiliary frame left rear fixing plate, the cabin left longitudinal beam middle section and the cabin left longitudinal beam middle section lower reinforcing plate, the outer layer is reinforced through the cabin lower cross beam left connecting plate, and the structural stability and the static rigidity performance are improved.

    本发明公开了一种前副车架左后安装总成结构,包括机舱下横梁左连接板、连接于所述机舱下横梁左连接板内侧的前副车架左后固定板、以及集成于所述前副车架左后固定板内侧的机舱左纵梁中段;沿垂直于所述前副车架左后固定板的方向、并与所述前副车架左后固定板固连有螺纹管;所述螺纹管与所述前副车架左后固定板、机舱左纵梁中段、以及机舱左纵梁中段下加强板的连接处形成有多个封闭腔体结构。本发明的总成结构通过CO2保护焊焊接固定有螺纹管,在前副车架左后固定板、机舱左纵梁中段、以及机舱左纵梁中段下加强板的连接处形成有多个封闭腔体结构,外层通过机舱下横梁左连接板加强,提高结构稳定以及静刚度性能。


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    Title :

    Left rear mounting assembly structure of front auxiliary frame


    Additional title:

    一种前副车架左后安装总成结构


    Contributors:
    WANG QUAN (author) / LIU YONG (author) / CHEN ZHENGLEI (author) / ZHANG ZUOCHEN (author) / ZHANG GEN (author)

    Publication date :

    2021-03-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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