High-power marine permanent magnet propulsion motor with double stators and double rotors

Abstract

The invention discloses a high-power marine permanent magnet propulsion motor with double stators and double rotors, which solves the problem of how to save the occupied space of a main propulsion motor on a ship and keep the functions of one for use and one for standby. The two motors are integrated in the same base, that is, the two stators are arranged in the same base, and the two rotors are arranged on the same rotor rotating shaft, so that the purpose of saving the occupied space of the main push motor is achieved; a support connected to a rotor rotating shaft is arranged to be of a spoke structure, a reinforcing connecting plate is arranged between every two adjacent spoke plates, and lightening holes are formed in the reinforcing connecting plates, so that the effect of overcoming large rotating stress is achieved; a fractional-slot skewed slot form is adopted for the wire embedding slots on the stator cores to reduce the cogging torque, and the opposite skewed cogging slots are adopted on the two stator cores, namely, one stator cogging slot adopts a leftward-skewed form, and the other stator cogging slot adopts a rightward-skewed form, so that the effect of balancing the axial force of the motor is achieved, and the vibration and noise of the motor are effectively reduced.

Description

technical field [0001] The invention relates to a high-power permanent-magnet low-speed motor, in particular to a marine-used high-power low-speed permanent-magnet propulsion motor provided with double stators and double rotors in the same frame. Background technique [0002] The main propulsion of some chemical tankers uses electric motors for propulsion. The main propulsion motors on board generally adopt the structure of two motors in series, one for use and one for backup. The main propulsion task is to ensure that the ship can return to the port safely; this conventional design scheme of two main propulsion motors in series needs to occupy a large space in the ship, but when the space on the ship is limited, how to save the cost of the two motors? Occupying space and ensuring the main propulsion function of one use and one standby has become a key problem to be solved in the design; secondly, the shaft of the main propulsion motor of the ship needs to output a large tor...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a double-stator and double-rotor high-power marine permanent magnet propulsion motor, which solves the technical problem of how to save the space occupied by the main propulsion motor and maintain the function of one use and one standby on the ship

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