Magnetic gear speed-regulating permanent-magnet synchronous traction machine

Abstract

The invention relates to a traction machine, in particular to a magnetic gear speed-regulating permanent-magnet synchronous traction machine. The traction machine comprises a base, a main shaft, an outer rotor motor assembly, a magnetism adjusting iron core and a magnetism adjusting outer rotor, wherein the main shaft is arranged on the base, and the outer rotor motor assembly is provided with anouter rotor motor stator fixed on the main shaft and an outer rotor motor rotor arranged on the outer side of the outer rotor motor stator and arranged on the main shaft through a first bearing; and the magnetism adjusting iron core is arranged on the outer side of the outer wall of the outer rotor motor rotor, and the magnetism adjusting outer rotor is arranged on the outer side of the outer circumference of the magnetism adjusting iron core. According to the magnetic gear speed-regulating permanent-magnet synchronous traction machine, the motor and a magnetic gear are both of an outer rotorstructure, so that the size of the stator is reduced, and the use of an enameled wire is reduced; and meanwhile, the mandrel only plays a role of bearing and mounting, does not participate in torque transmission, and the torque output by the motor is directly transmitted to a traction wheel through the magnetic gear rotor, so that the torque transmission is more direct, the longitudinal length ofthe main shaft is reduced, and the overall size and weight are reduced.

Description

technical field [0001] The invention relates to a traction machine, in particular to a magnetic gear speed regulating permanent magnet synchronous traction machine. Background technique [0002] The traction machine is the main power output device for load traction. The common traction machine generally drives the main shaft to rotate through the rotor and then transmits the torque to the traction sheave, thereby driving the wire rope to output the traction force. With the development of modulated magnetic gears, some magnetic gear traction machines that are driven by the combination of magnetic gears and permanent magnet motors have appeared on the market. This type of traction machine is mainly suitable for traction machines with low speed and high torque output. . [0003] The existing permanent magnet synchronous traction machine with magnetic gear speed regulation generally includes a composite structure composed of a motor assembly, a magnetic core and a magnetic gear...

AI Technical Summary

Problems solved by technology

[0004] 1. The size of the stator is large, and the number of windings that need to be used is large, and the amount of enameled wire used is large, resulting in high material costs;

[0005] 2. The transmission between the magnetic gear rotor, the traction wheel and the main shaft is through a flat key, all of which need to occupy a relatively large depth dimension, resulting in a large size and a large overall weight of the overall traction machine, which is not convenient for manufacturing and processing And maintenance

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