Traction motor for light rail and metro

Abstract

The invention relates to a traction motor and specifically relates to a traction motor for a light rail and a metro. The problem that the performance of the present traction motor cannot meet the requirement of novel traction motor can be solved. The traction motor for the light rail and the metro comprises a stator, a rotor, a driving end cover, a non-driving end cover, an air filtering cover fixedly sleeved on the driving end cover, a speed sensor and a temperature sensor, wherein a fan is arranged at the non-driving end of a rotor spindle; an air outlet encircles the periphery of the non-driving end cover; an air guide slot covering on the air outlet is formed in the inner side of the non-driving end cover; an opening of the air guide slot is upward; an air draining vent is formed at the bottom of the air guide slot. An electromagnetic structure adopts an optimizing method as follows: driving the motor to enter a constant power point and then boosting for driving the motor to enter a constant-pressure constant power point. When the traction motor for the light rail and the metro runs under high speed, the noise level of the motor is guaranteed; under the condition of losing a half of power of the vehicle, the vehicle still can achieve all-weather long-time running; a power guarantee is supplied for the stable running of the urban railway vehicle.

Description

technical field [0001] The invention relates to a traction motor, in particular to a light rail and subway traction motor. Background technique [0002] With the continuous development of urban rail transit, in order to meet the growing demand for travel, the comprehensive performance requirements for light rail and subway traction motors are getting higher and higher, and the motors are required to be small in size, light in weight, low in noise, high in power, and high in speed. , super power and other characteristics. [0003] The following table lists the main technical indicators of several existing subway traction motors of the same type: [0004] [0005] The above table reflects the shortcomings of the existing six series of technical solutions for subway traction motors: [0006] (1) The maximum constant power speed ratio of the motor is 1.7, which cannot meet the requirements of the new traction motor with a constant power speed ratio of 2.99. [0007] (2) Th...

AI Technical Summary

Problems solved by technology

[0011] The invention solves the problem that the performance of the existing traction motor cannot meet the requirements of the new traction motor, and provides a traction motor for light rail and subway. The comprehensive performance of the traction motor is increasingly demanding

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