Ultra-high-speed heavy-loading outer-rotor permanent magnet synchronous traction machine

Abstract

The invention relates to an ultra-high-speed heavy-loading outer-rotor permanent magnet synchronous traction machine solving the problems of service life influence and the like in the prior art. The ultra-high-speed heavy-loading outer-rotor permanent magnet synchronous traction machine comprises a stand, a main shaft, a stator coil, a rotor sleeve, a rotor body, a traction wheel, a disc-type brake device and an encoder, wherein the main shaft is assembled on the stand; the rotor body, the traction wheel and the disc-type brake device are fixed on the rotor sleeve; and the encoder is assembled on the rear end of the main shaft. The invention puts a technical emphasis on that a machine base with a rear bearing and a front support with a front bearing are respectively fixed on both ends of the stand; the main shaft supports between the machine base and the front support through the front bearing and the rear bearing, and an internal circumference is attached to the rotor body of a permanent magnet and arranged outside the stator coil; the rotor sleeve is provided with a ventilation hole used for ventilation and heat dissipation and a dustproof rubber plug positioned on an outer sideend, and the rotor body, a brake disc and the traction wheel are respectively connected and fixed with the main shaft to form an integral type structure through the rotor sleeve. The invention has compact structure and design and reasonable stress distribution; and in addition, compared with a similar product, the ultra-high-speed heavy-loading outer-rotor permanent magnet synchronous traction machine has the advantages of small occupying area, material saving, little energy consumption, high operation efficiency, safe and reliable use, convenient installation and maintenance, and the like.

Description

technical field [0001] The invention relates to an elevator traction machine for super high-rise buildings, in particular to a uniquely designed rotor sleeve with ventilation holes, through which a rotor body, a brake disc and a traction sheave are connected and fixed to a main shaft The ultra-high-speed and large-capacity external rotor permanent magnet synchronous traction machine as a whole, its ultra-high speed means that the rated speed is not less than 7.0m / s, and the large-capacity means that the rated load is not less than 1600kg. It belongs to the field of elevator drive technology. Background technique [0002] Ultra-high-speed and large-load elevators are indispensable vertical means of transportation in super high-rise buildings. At present, elevator traction machines used in super high-rise buildings include DC traction machines and gearless permanent magnet synchronous traction machines. The brushes and commutators in the structure of the DC motor make the DC...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an ultra-high-speed and large-load external rotor permanent magnet synchronous traction machine, which solves the problems of low service life of the traction machine and difficulty in assembly and maintenance in the prior art, and saves the outer rotor permanent magnet synchronous traction machine In addition to its compact structure, high power density, small footprint, material saving, low energy consumption, and high operating efficiency, compared with similar products, its structural design and force distribution are more reasonable, which significantly improves the stress conditions and greatly increases The running speed of the traction machine improves the load capacity and operating performance of the traction machine, further increases the safety and reliability of the operation, and is conducive to installation and maintenance and prolongs the service life

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