Lifting device for cross beam and mounting method of lifting device

The invention relates to the technical field of bridge construction hoisting equipment, in particular to a lifting device for a cross beam and an installation method thereof.The lifting device for the cross beam comprises a hanging bracket system, the hanging bracket system comprises a top frame, a connecting frame and a bottom frame, and the top frame is connected with the top face of the cross beam through an embedded anchoring part; the top side of the connecting frame is connected with the top frame, the bottom side of the connecting frame is connected with the bottom frame, the side face of the connecting frame abuts against a cross beam, and the bottom frame is connected with the bottom face of the cross beam through an embedded anchoring part. The lifting system is connected with the bottom frame, and the lifting system is connected with a power mechanism through a steel wire rope. The lifting device is not limited by the lifting height, is not influenced by the construction progress on lifting operati