The invention relates to the technical field of automobile parts, discloses a drive axle housing structure for an automobile transmission system, and aims to solve the problems that when an existing drive axle housing is used, an axle housing connecting shaft and an axle housing shaft head are mostly connected through a flange plate, and in this way, disassembly and assembly are tedious, and actual use is not easy. A corresponding reinforcing structure is lacked between the drive axle housing and the axle housing connecting shafts, the drive axle housing and the axle housing connecting shafts cannot be firmer, a reinforcing mechanism is installed on the periphery of the axle housing body, and two symmetrically-distributed limiting mechanisms are installed at the connecting position of the second axle housing connecting shaft and the axle housing shaft head. The fastening degree between the axle housing main body and the first axle housing connecting shaft can be increased through the reinforcing mechanism, so that connection between the axle housing main body and the first axle housing connecting shaft is firmer, and a user can conveniently and rapidly disassemble and assemble the second axle housing connecting shaft and the axle housing shaft head through the limiting mechanism; and a user can conveniently and regularly maintain the second axle housing connecting shaft and the axle housing shaft head and replace corresponding parts.

本发明涉及汽车配件技术领域，公开了一种汽车传动系统用驱动桥桥壳结构，现有驱动桥桥壳在使用时，桥壳连接轴和桥壳轴头之间大多通过法兰盘连接，该方式拆装起来较为繁琐，不易于实际使用，而且驱动桥桥壳和桥壳连接轴之间缺乏相应的加固结构，无法使二者之间更加牢靠，所述桥壳主体的外围处安装有加固机构，第二桥壳连接轴和桥壳轴头的连接处安装有两个呈对称分布的限位机构。通过加固机构可以增加桥壳主体和第一桥壳连接轴之间的紧固程度，使得桥壳主体和第一桥壳连接轴之间连接地更加牢靠，通过限位机构可以方便使用者对第二桥壳连接轴和桥壳轴头进行快速拆装，易于使用者对第二桥壳连接轴和桥壳轴头进行定期维护和更换相应零部件。