Contra-rotating pod propeller with propellers at same side

Abstract

The invention provides a contra-rotating pod propeller with propellers at the same side. The contra-rotating pod propeller comprises a slip ring, a well box is mounted at the bottom end of the slip ring, a steering device is mounted on the well box, the well box is connected with a lower box body through a pivotal bearing, and the lower box body is connected with a pod underwater shell. A first motor and a second motor are fixedly installed in a pod underwater shell, connected with a first propeller shaft and a second propeller shaft respectively and coaxially arranged, and the output end of the first propeller shaft and the output end of the second propeller shaft are both located at the tail end of the pod underwater shell and drive a second propeller and a first propeller to rotate reversely respectively. Two motors are coaxially arranged in the pod propeller and drive the propeller shafts respectively to drive two propellers to rotate reversely; and during sailing, the rear side propeller can effectively absorb wake vortex kinetic energy of the front propeller and convert the wake vortex kinetic energy into extra propulsion power, propeller power loss is reduced, noise and cavitation are reduced, and the performance of the propeller is effectively improved.

Description

technical field [0001] The invention relates to a counter-rotating pod propeller with a motor as a prime mover, more specifically, the invention designs a counter-rotating pod propeller with propellers on the same side. Background technique [0002] At present, due to the advantages of low noise and low vibration, pod propellers have been widely used in diving operation supply ships, oil drilling platforms, supply ships, shuttle tankers, ro-ro ships, icebreakers and some military ships. The pod propeller places the propulsion motor outside the cabin, and the electric energy generated by the generator is transmitted to the motor outside the cabin through cables, and the motor directly drives the propeller to rotate to provide power for the ship. [0003] When the ship is sailing, the rotation of the propeller will inevitably cause a certain power loss. In order to recycle the lost power, there is currently a plan to arrange counter-rotating propellers on both sides of the pro...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a counter-rotating pod propeller with the propeller on the same side for the problem that there is no good solution for the power loss caused by the rotation of the propeller

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