Double-layer diffusion and sawtooth tail edge integrated wheel rim driving propeller

Abstract

The invention discloses a double-layer diffusion and sawtooth tail edge integrated wheel rim driving propeller. The propeller comprises a multiplier assembly, a sawtooth tail edge, a multiplier connecting assembly, a stator winding and a rotor assembly. The multiplier assembly comprises a double-layer diffusion structure composed of a first-stage multiplier and a second-stage multiplier, the sectional area of the structure in the middle of the guide pipe is minimum, the sectional areas of the structure at the two ends of the guide pipe are large, and the flow speed of water flowing through propeller blades can be obviously increased. Due to the design of the sawtooth tail edge, the water flow noise is greatly reduced; the wheel rim driving mode is free of complex shafting transmission, and shafting vibration is reduced while the propulsive efficiency is greatly improved. The propeller has the advantages of improving the propulsive efficiency, reducing the noise, reducing the vibration and the like, and is particularly suitable for military ships with higher requirements on maneuverability and concealment.

Description

technical field [0001] The invention belongs to the field of ship propellers, in particular to an integrated wheel rim drive propeller. Background technique [0002] The shaftless rim propeller is a brand-new ship propulsion method proposed and developed in recent years. Due to the large volume of the main engine and the long propulsion shafting of the ship's traditional shafting propeller, it occupies a large cabin space, resulting in low space utilization. At the same time, due to the increasingly complex structure of the propulsion shafting, the loss in the process of energy transmission increases, the transmission efficiency decreases, and the design difficulty and construction cost of the ship are increased. shaft propulsion system. [0003] The shaftless propulsion system refers to the propulsion device that does not need to penetrate the hull. It innovates on the basis of the all-electric propulsion system, adopts a design different from the existing electric propul...

AI Technical Summary

Problems solved by technology

Due to the large volume of the main engine and the long propulsion shafting of the ship's traditional shafting propeller, it occupies a large cabin space, resulting in low space utilization

At the same time, due to the increasingly complex structure of the propulsion shafting, the loss in the process of energy transmission increases, the transmission efficiency decreases, and the design difficulty and construction cost of the ship are increased. shaft propulsion system

[0003] The shaftless propulsion system refers to the propulsion device that does not need to penetrate the hull. It innovates on the basis of the all-electric propulsion system, adopts a design different from the existing electric propulsion system, and avoids electric propulsion such as pod type and full-turn type. The system has disadvantages such as complex structure, large space occupied by the shaft system, low transmission efficiency, and prone to failure.

The existing shaftless propeller has a complex structure, low propulsion efficiency, and high vibration and noise during operation

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