PROPULSION APPARATUS FOR SHIP, AND SHIP HAVING THE SAME

摘要

PURPOSE: A propulsion device and a ship with the same are provided to transmit power to a front propeller without using an outer shaft and to reversely rotate two propellers. CONSTITUTION: A propulsion device for a ship comprises a rear propeller(20), a front propeller(30), and a reverse rotating device(70). The rear propeller is fixed in a driving shaft. The front propeller is rotatably supported in the driving shaft. The reverse rotating device is installed in the tail end of a hull, reverses the rotation of the driving shaft, and transmits the reversed rotation to the front propeller. The reverse rotating device comprises a driving bevel gear, a driven bevel gear, and at least one reverse bevel gear.