Shutdown-free quick replacement robot for carrier rollers of belt conveyor and using method of quick replacement robot

The invention relates to the technical field of belt conveyors, in particular to a belt conveyor carrier roller quick replacement robot without shutdown and a using method thereof.The belt conveyor carrier roller quick replacement robot comprises a conveying belt and a carrier roller, rolling shafts used for supporting the conveying belt are installed at the two ends of the inner side of the conveying belt, and fixing frames are installed on the two sides of each rolling shaft; a connecting structure is installed on the inner side of the fixing frame and connected with a carrier roller through a transverse shaft. A tray structure used for replacing carrier rollers is installed on the lower side of the conveying belt, a bottom plate is installed at the bottom end of the tray structure, a carrier roller bin used for containing the carrier rollers is arranged on the upper side of the bottom plate, the outer side of the carrier roller bin is installed on one side of the bottom plate through a side plate, and a co