Small-radius frame beam steering device of transporting and erecting all-in-one machine

The utility model discloses a small-radius frame beam steering device of a transporting and erecting all-in-one machine, and relates to a bridge erecting auxiliary device. A rotating seat is arranged in the center of a saddle beam of the transporting and erecting all-in-one machine main machine, a bearing plate frame is installed on the top face of the saddle beam through the rotating seat, and steering adjusting mechanisms are installed on the front side wall and the rear side wall of the bearing plate frame respectively. The steering adjusting mechanism comprises a mounting base, a spherical hinge push rod, a spherical hinge pressing plate and a spherical hinge pressing head, the spherical hinge push rod is mounted in the mounting base, a spherical hinge is mounted at the other end of the spherical hinge push rod, an oil cup is arranged between the spherical hinge pressing head and the spherical hinge pressing plate, the spherical hinge pressing head is fixed to the side wall of the bearing plate frame, and