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 by directly connecting the front propeller and bevel gears of a counter rotating device. CONSTITUTION: A propulsion device for a ship comprises a rear propeller(20), a front propeller(30), a counter rotating device(70), and a support ring(60). The rear propeller is fixed on a driving shaft. The front propeller is rotatably supported in the driving shaft. The counter rotating device is installed in the tail end of a hull. The counter rotating device reverses the rotation of the driving shaft and transmits the reversed rotation to the front propeller. The support ring is installed on the exterior of the driving shaft between the rear propeller and the front propeller and supports the thrust load of the front propeller.