Permanent magnetic synchronous motor having single electricity port and dual mechanical port of same speed in reversed direction

Abstract

Disclosed is a permasyn motor with a single charge port and a same speed reverse direction double machine ports, which relates to an electric motor of an underwater vehicle counter-rotating propellers propulsion system. A solid shaft and a hollow shaft of the permasyn motor are concentric; the left end of the solid shaft is provided with an inner rotating shaft fore bearing, a rotor front end cover, an outer rotating fore bearing, the hollow shaft, a shell bearing and a shell bearing front end cover from inside to outside sequentially; a connecting piece penetrates through the middle of a stator which is used for fastening a silicon-steel sheet of the stator; and the left end of the connecting piece is fixed on the rotor front end cover, and the right end is fixed on a rotor rear end cover. The permasyn motor has the advantages that an inner rotor and an outer rotor are adopted to directly drive counter-rotating propellers (blade elevation angles are reverse), so that the two propellers can mutually counteract the rotary moments generated in the circumferential direction when generating a propulsive force so as to effectively avoid the side roll of the underwater vehicle, thereby guaranteeing the advancing gesture and improving the operating efficiency of a system.

Description

technical field [0001] The invention relates to a motor used in a counter-rotating propeller propulsion system of an underwater vehicle, in particular to a permanent magnet synchronous motor with a single electric port and double mechanical ports at the same speed and reverse direction. Background technique [0002] At present, the known contra-rotating propeller propulsion motors of underwater vehicles are dual-rotor DC motors, which require two sets of brushes and slip ring structures, which reduces the reliability of the motor and increases the mechanical volume, weight, maintenance difficulty and cost. . Contents of the invention [0003] In order to overcome the shortcomings of the existing dual-rotor DC motor as the propulsion motor of the underwater vehicle, the present invention provides a permanent magnet synchronous motor with a single electrical port and a same-speed reverse dual mechanical port, which eliminates the need for brushes and The slip ring device re...

AI Technical Summary

Problems solved by technology

[0002] At present, the known contra-rotating propeller propulsion motors of underwater vehicles are dual-rotor DC motors, which require two sets of brushes and slip ring structures, which reduces the reliability of the motor and increases the mechanical volume, weight, maintenance difficulty and cost.

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