Rim-driven propulsion system with low friction power consumption

Abstract

The invention discloses a rim-driven propulsion system with low friction power consumption, the system comprises a stator part and a rotor part, the stator part comprises a guide pipe (1), a shell (2), a stator winding (3), a hub (4), a permanent magnet (5) in the hub and a stator connecting rod (6); the rotor part comprises paddles (9), paddle plates (10), paddle outer rotor rings (11), paddle outer rotor inner permanent magnets (12), paddle inner rotor rings (13) and paddle inner rotor permanent magnets (14); the stator winding is arranged in the shell, mechanical sealing parts are adopted between the paddle outer rotor rings (11) and the hub (4) for water sealing, an air inlet hole (16) and an air outlet hole (17) are formed in the shell, the shell is connected with a fan through an air guide pipe, and air is introduced into a gap between the stator part and the rotor part. The bearing part adopts a magnetic suspension technology, so that the friction power consumption is reduced, and meanwhile, the vibration reduction effect can be achieved.

Description

technical field [0001] The invention belongs to the field of ship propellers, in particular to a low-friction power consumption wheel rim drive propulsion system capable of improving propeller efficiency. Background technique [0002] In recent years, with the strengthening of trade among countries around the world, the volume of sea freight has increased, and the number and tonnage of ships have also increased. However, with the development of large-scale ships, traditional ship propulsion systems have been unable to better meet the work requirements. In a traditional propulsion system, the main engine, propulsion shafting, propeller, etc. are indispensable devices, and as the power of the main engine unit increases, its volume also increases, and the length of the propulsion shafting increases to tens of meters Even hundreds of meters, part of the cabin is occupied, resulting in low space utilization. At the same time, due to the increase in the length of the propulsion sh...

AI Technical Summary

Problems solved by technology

The traditional shaftless rim propeller still has the frictional power consumption of water between the stator and rotor. In addition, the contact surface between the rotor ring and the hub is large, and the friction force also increases the power consumption.

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