The invention discloses a positioning and mounting structure for a rear auxiliary frame of an electric vehicle. The structure comprises rear longitudinal beams, a rear cross beam and a rear auxiliaryframe; two ends of the rear cross beam are respectively fixed with the rear longitudinal beams on two sides; a positioning connecting pipe is arranged at the joint of the rear cross beam and the rearlongitudinal beams; a positioning counter bore is formed in the positioning connecting pipe; a connecting threaded hole is formed in the bottom face of the positioning counter bore; a positioning bushing is arranged on the rear auxiliary frame; the positioning bushing is fixed to the rear auxiliary frame; the positioning bushing is provided with a positioning boss; a through hole is formed in thepositioning bushing; the through hole penetrates through the positioning bushing and the positioning boss; the positioning boss is matched with the positioning counter bore; and a mounting bolt penetrates through the through hole to be connected with the connecting threaded hole. With the positioning and mounting structure for the rear auxiliary frame of the electric vehicle of the invention adopted, the mounting and positioning precision between a vehicle body and the rear auxiliary frame is improved, a mounting process is simplified, and overall rigidity and strength are improved.

    本发明公开了一种电动车后副车架定位及安装结构,包括后纵梁、后横梁和后副车架,后横梁的两端分别与两侧的后纵梁固定,后横梁与后纵梁连接处设有定位连接管,定位连接管上设有定位沉孔,定位沉孔的底面设有连接螺纹孔,后副车架上设有定位衬套,定位衬套与后副车架固定,定位衬套上设有定位凸台和通过孔,通过孔贯穿定位衬套和定位凸台,定位凸台与定位沉孔适配,安装螺栓穿过通过孔与连接螺纹孔连接。本发明提供了一种电动车后副车架定位及安装结构,提高车身与后副车架之间的安装定位精度,同时简化安装工艺,同时提高整体刚度和强度。


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    Title :

    Positioning and mounting structure for rear auxiliary frame of electric vehicle


    Additional title:

    一种电动车后副车架定位及安装结构


    Contributors:
    CHEN ZHIJIA (author) / QI LUJIE (author) / GUO DAZHOU (author)

    Publication date :

    2020-09-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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