Steering rigid suspension axle assembly

The utility model relates to a steering rigid suspension axle assembly which comprises an axle (8). Two side wheel hubs of the axle (8) can swing. The steering rigid suspension axle assembly is characterized in that: the central part of the axle (8) is hinged with a vertically equipped supporting vertical shaft (7); an upper end of the supporting vertical shaft (7) is provided with a flange (2); the flange (2) is in matching connection with the upper end of the supporting vertical shaft (7) through a bearing (3); and an outer peripheral surface at the middle part of the supporting vertical shaft (7) below the flange (2) is provided with a power steering arm (2) which extends in the axial direction of the supporting vertical shaft (7). The steering rigid suspension axle assembly is advantageous in that: the steering rigid suspension axle assembly can be used singly; commonly two steering rigid suspension axle assemblies in a left-and-right direction are used in pair as a group; a plurality of groups can be use