Steering driving mechanism for heavy truck with double front axle structure

The utility model relates to a steering driving mechanism for a heavy truck with a double front axle structure. The utility model comprises a moving direction machine, a steering suspension arm and straight pull rods, wherein, the front end of each straight pull rod is connected with the steering suspension arm, and the back end of each straight pull rod and the front end of a front straight pull rod are both connected to the lower end of a front transition rocking arm; the upper end of the front transition rocking arm is connected to a supporting frame of the front transition rocking arm; the front end of a back straight pull rod is connected with the lower end of a back transition rocking arm; the upper end of the back transition rocking arm is connected to a supporting rack of the back transition rocking arm; a rocking arm pull rod is connected between the front and the back transition rocking arms. The utility model has the advantage of reasonable structure, and ensures that the whole truck has large carrying capacity. The application of power steering and the rocking arms realizes the portable steering control and the synchronization of the steering of double front axles.