SCREW PROPELLER OF A POD DRIVE OF A VESSEL AND POD DRIVE COMPRISING SAID SCREW PROPELLER

摘要

The present invention is a pod of ships, in particular ice-going vessels, in the field of shipbuilding, in particular providing forward and backward movement in ice conditions capable of crossing ice and also providing steering for the ship. It relates to a screw propeller for a drive, and a pod drive comprising the screw propeller. In order to reduce the weight of the pod actuator and thus reduce the cost, the screw propeller comprises a propeller hub made to be firmly attached to a conical tailpiece of the propeller shaft, and a screw propeller blade, each of the screw propeller blades, which is a propeller. Includes blade foils and blade flanges mounted on the hub and made as a single piece. The blade foil enters the blade flange through a fillet joint, which fillet joint forms the weakest portion of possible failure of the blade in the cross section of the blade foil, which is located immediately adjacent to the fillet joint. The outer surface of the blade flange has, in its meridian cross-section, a profile curved inward toward the propeller axis, so that the distance from the blade foil cross-section to the propeller axis is reduced.