Double-disc and double-cylinder hybrid permanent magnet coupling

The utility model relates to the technical field of magnetic couplings, in particular to a double-disc double-cylinder hybrid permanent magnetic coupler. According to the technical scheme, the cooling device comprises a mounting outer barrel, a cooling copper ring and an input shaft, the cooling copper ring sleeves one side of the exterior of the mounting outer barrel, holes are formed in the cooling copper ring at equal intervals, a sealing sleeve sleeves the other side of the exterior of the mounting outer barrel, the input shaft is movably mounted on one side of the mounting outer barrel through a bearing, and an output disc is welded to the other end of the input shaft; an outer magnetic rotor is mounted in the output disc, a mounting disc is mounted on the other side of the mounting outer cylinder through bolts, and an output shaft is movably mounted in the mounting disc through a bearing. According to the cooling device, the holes are formed in the cooling copper ring at equal intervals, a worker can in