Ship-used permanent magnet motor propeller

Abstract

The invention relates to a ship-used permanent magnet motor propeller, which comprises a motor, a shell and a propeller, and is characterized in that the motor is a permanent magnet motor; the permanent magnet motor comprises a stator and a rotor; the stator comprises a stator sleeve; the stator sleeve is located inside the shell; the stator sleeve is internally, circumferentially and uniformly provided with stator coils; an insulated layer is arranged outside the stator coil; the rotor comprises a rotor sleeve; permanent magnets are circumferentially and uniformly arranged inside the rotor sleeve; a gap is left between the permanent magnet and the stator coil; bearings are arranged between two ends of the stator sleeve and two ends of the rotor sleeve; two ends of the stator sleeve and two ends of the rotor sleeve are provided with round air guide sleeves; the air guide sleeve has a nearly conical cross section, and two edges are respectively connected with the same ends of the shell and the rotor sleeve; paddle blades are circumferentially and uniformly arranged inside the rotor sleeve; and the rotor sleeve and the inner circumferential paddle blades form the propeller. The ship-used permanent magnet motor propeller is simple in structure, small in size, small in occupied space, and little in noise, facilitates health of an operator, can avoid environmental pollution, and can be applied to a ship.

Description

technical field [0001] The invention relates to a marine propeller. Specifically, it is a permanent magnet motor propeller that adopts a permanent magnet motor as power and is suitable for use on ships. Background technique [0002] It is well known in the shipbuilding industry that the propellers currently used on ships are all traditional propellers. This traditional thruster comprises a casing, and motor, gear box, propeller are arranged in the casing, and propeller wherein is made up of paddle shaft and the paddle blade that is fixed on the paddle shaft. The output shaft of the motor is connected with the input shaft of the gearbox, and the output shaft of the gearbox is connected with the paddle shaft of the propeller. When working, the motor drives the propeller shaft and the turbine on the propeller shaft to rotate through the gearbox, thereby generating forward thrust to realize the propulsion of the ship. Since the traditional body propeller contains a motor, a g...

AI Technical Summary

Problems solved by technology

Since the traditional propeller contains a motor, a gearbox and a propeller, and the propeller is composed of a propeller shaft and a turbine fixed on the propeller shaft, the mechanical transmission between the motor rotor shaft and the motor casing, and between the propeller shaft and the shaft seat requires bearings and lubricating oil, making the transmission noise louder, which is not conducive to the health of operators

Moreover, the lubricating oil is easy to leak, which will pollute the water environment.

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