Ship power output transmission device

The utility model belongs to the field of ship power devices, and particularly relates to a ship power output transmission device which comprises a tail rotor, and the rear end of the tail rotor is arranged in a ship body. A cutting mechanism is arranged at the front end of the ship body and comprises a fixing plate, a clamping groove is formed in the top end of the fixing plate, a through groove is formed in the clamping groove, a blade is inserted into the through groove, the bottom end of the blade is close to the surface of a tail rotor, and a baffle is fixedly connected to the top end of the blade. A handle is fixedly connected to the baffle, the three sets of blades are arranged, the distances between the three sets of blades are the same, and a cushion block is placed in the clamping groove. And three groups of blades in the cutting mechanism are close to the bottom end of the tail rotor, so that when a floating object is wound on the tail rotor, the three groups of blades can cut the object wound on t