Special lifting appliance for mounting I-shaped steel plate unit beam

The utility model discloses a special lifting appliance for mounting an I-shaped steel plate unit beam, which comprises two translation boxes, rotating devices are arranged at the centers of the topsof the two translation boxes, two rotating seats with symmetrical positions are fixedly connected to the inner top walls of the two translation boxes, and the rotating devices are positioned between the two rotating seats; and rotating rods are fixedly connected to the centers of the two rotating seats correspondingly, first driven wheels and second driven wheels are fixedly connected to the outersurfaces of the two rotating rods correspondingly, the first driven wheels are located above the second driven wheels, and the two first driven wheels are both connected with the rotating device in ameshed mode. When the steel plate hook is used, the driving wheel is driven to rotate through rotation of the driving motor, the rack can translate on the horizontal plane through the mutual meshingeffect between the gears so