Plate type aluminum alloy gear motor

Abstract

The invention relates to a motor special for a motor train unit locomotive, in particular to a plate type aluminum alloy gear motor. The plate type aluminum alloy gear motor comprises a motor casing, a front end cover, a rear end cover, a rotor support, a motor rotating shaft, a front bearing, a rear bearing and a gear. The rotor support is fixedly connected to the motor rotating shaft. An annular magnetic plate for carrying out magnetizing through multiple poles is fixed to the rotor support. A stator winding located beside the annular magnetic plate is fixed to the front end cover. Stator iron cores are fixed to the two sides of the annular magnetic plate respectively. Front halves of the stator iron cores are fixed to the front end cover, and rear halves of the stator iron cores are fixed to the rear end cover. Front stator teeth and rear stator teeth are fixed on the front end cover and distributed on the same circumference, and front stator teeth and rear stator teeth are fixed on the rear end cover and distributed on the same circumference. According to the improvement, a gland flange is arranged between a lead connector and wiring port base on the motor casing and fixes a sealing hole ring into a port base inner hole of the wiring port base. An inner-ring-free bearing is arranged between the outer end of a bending moment resisting component and the gear, and an aluminum alloy coating is arranged on the surface of a supporting circle of the bending moment resisting component.

Description

technical field [0001] The invention relates to a special electric motor for an EMU locomotive, which has double strict requirements on size, space and service life, and in particular relates to a disc-type aluminum alloy gear motor. Background technique [0002] High-speed EMUs have special strict requirements on the motor performance of the traction system, such as high torque, low noise, bending moment resistance, and efficient heat dissipation. For this reason, most developed countries in Europe and the United States use disc motors. Most of the stator and rotor of the motor are composed of iron core and coil winding. When the motor is running, there are copper loss and iron loss, and its efficiency is difficult to be greatly improved. On the other hand, the axial size and shape of the motor are difficult to make very thin, which limits its application in special occasions. For this reason, people have carried out long-term exploration, put forward various solutions. F...

AI Technical Summary

Problems solved by technology

Therefore, in order to allow the motor shaft to withstand the bending moment, the diameter of the motor shaft has to be doubled, which eventually leads to a series of disadvantages: the linear speed of the motor bearing is also doubled, its internal friction is doubled, and the heat generated by the internal friction is doubled Big

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