Lifting bridge assembly structure

The utility model relates to a lifting axle assembly structure which comprises an axle housing assembly, a wheel end assembly and a lifting mechanism. The axle housing assembly comprises an axle tube, and the wheel end assemblies are installed at the two ends of the axle tube. The lifting mechanism comprises a fixed cover plate, a movable cover plate, a lifting rod, a driving piece and a connecting piece, the fixed cover plate is used for being fixedly connected with the frame, the movable cover plate is movably installed above the fixed cover plate, the upper end of the lifting rod is fixedly connected with the movable cover plate, the lifting rod can slide up and down relative to the fixed cover plate, and the lower end of the lifting rod is connected with the shaft pipe through the connecting piece; the driving piece is used for driving the movable cover plate to lift above the fixed cover plate; a user can reasonably control the tire to ascend or descend according to the cargo carrying condition of the tr