Flame-proof type disc copper alloy flat belt pulley motor

Abstract

The invention relates to a special motor for a motor train unit locomotive, in particular to a flame-proof type disc copper alloy flat belt pulley motor. The flame-proof type disc copper alloy flat belt pulley motor is characterized in that a terminal box base is fixedly connected to an internal lead outlet of a motor shell, a terminal box end cover is arranged at the outer end of the terminal box base, a lead hole base is located on the terminal box end cover, and an external lead penetrates through the lead hole base. A front stator and a rear stator are each composed of a stator core and an armature winding, a motor rotor is composed of six rotor cores and permanent magnets installed between the adjacent rotor cores, the motor rotor is installed on a rotor support, and the rotor support is fixedly connected to the maximal diameter portion of a motor rotary shaft. The rear stator is fixedly connected to the inner end face of a rear end cover, the front stator is fixedly connected to the inner end face of a front end cover, and the motor rotor is located between the rear stator and the front stator. A rear bearing cover is arranged on the rear end cover and fixed to the rear end cover through screws, and the inner end of the rear bearing cover stretches into rear cover bearing holes in the rear end cover and abuts against rear bearings.

Description

Technical field [0001] The invention relates to a special motor for a locomotive of an EMU, which has double demanding requirements on size space and service life, and specifically relates to an explosion-proof disc-type copper alloy flat pulley motor. Background technique [0002] High-speed EMUs have special and demanding requirements for the motor performance of the traction system, such as large torque, low noise, anti-bending moment, and efficient heat dissipation, etc. For this reason, most developed countries in Europe and America use disk motors. In the structure of the traditional disc motor, the utilization rate of the single stator winding wire is extremely low, and the wire embedding process of the double stator winding is complicated, especially for the stator winding of the small motor. In addition, the structure of the traditional column motor, the magnetic circuit There is a "bottleneck effect". The saturation point is low and the utilization rate of the winding i...

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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