Device and method for detecting deflection angle of steel wire rope of hook of bridge crane

The invention relates to the technical field of bridge cranes, in particular to a device for detecting the deflection angle of a steel wire rope of a hook of a bridge crane. The device for detecting the deflection angle of the steel wire rope of the hook of the bridge crane comprises the steel wire rope, a trolley and a reel arranged on the trolley, and further comprises a swing frame structure arranged between the reel and the trolley. The swing frame structure comprises a box body and a frame body. One end of the steel wire rope is wound on the reel, and the other end of the steel wire rope is connected with the frame body. The steel wire rope drives the frame body to move along the x axis and the y axis of the box body. The frame body is provided with a sensor corresponding to the box body. The steel wire rope in the device for detecting the deflection angle of the steel wire rope of the hook of the bridge crane provided by the invention swings to drive the frame body to move along the x axis and the y axi