The invention discloses a rear axle assembly which comprises a tubular beam assembly, a left trailing arm assembly and a right trailing arm assembly, and the left trailing arm assembly and the right trailing arm assembly are symmetrical to each other and connected to the left end and the right end of the tubular beam assembly respectively. The left trailing arm assembly comprises a left arm, a trailing arm main body and a connecting plate, the left arm is connected with the left end of the tubular beam assembly, and the trailing arm main body and the left arm are cast into an integrated structure; the connecting plate is arranged at the leftmost end of the trailing arm main body and is used for mounting brake calipers; a mud guard and a hub unit are further mounted on the outer side of the trailing arm main body or the connecting plate; the tubular beam assembly comprises a first tubular beam and a second tubular beam, one ends of the first tubular beam and the second tubular beam are connected through a flange plate, and the other ends are connected with a left arm of the left trailing arm assembly and a right arm of the right trailing arm assembly respectively. The rear axle assembly is separated from a transmission system, the weight of the rear axle assembly is reduced, the unsprung mass of an automobile is reduced, and the smoothness of the automobile is improved. The axle housing does not need a main reducer housing, the middle size is reduced, the rear axle ground clearance is increased, and the automobile trafficability is improved.

    本发明公开了一种后桥总成,包括管梁总成以及相互对称的左纵臂总成和右纵臂总成,左纵臂总成和右纵臂总成分别连接在管梁总成的左右两端;左纵臂总成包括左臂、纵臂主体以及连接板,左臂与管梁总成的左端连接,纵臂主体与左臂铸造成一体结构;连接板设置在纵臂主体的最左端,用于安装制动卡钳;纵臂主体或连接板外侧还安装有挡泥板、轮毂单元;管梁总成包括第一管梁和第二管梁,第一管梁和第二管梁的一端通过法兰盘连接,另一端分别与左纵臂总成的左臂和右纵臂总成的右臂连接。本发明将后桥总成与传动系统分离,降低后桥总成重量,降低汽车簧下质量,提高汽车平顺性。桥壳无需主减速器壳,中间尺寸减小,后桥离地间隙加大,提升汽车通过性。


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    Title :

    Rear axle assembly


    Additional title:

    一种后桥总成


    Contributors:
    LONG DAOJIANG (author) / LONG DAOHAI (author) / ZHOU YAHUI (author) / LUO SHICHENG (author) / YAO XUESEN (author) / LI HAILIANG (author) / LI QIUSHI (author) / YANG DONG (author) / ZUO WEICHEN (author)

    Publication date :

    2023-08-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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