A chrome alloy disc type V-belt pulley motor

Abstract

The invention relates to a special motor for a motor train unit locomotive, in particular to a chromium alloy disc triangular belt wheel motor. The chromium alloy disc triangular belt wheel motor is characterized in that a front closed water flow cavity is formed between the inner plane of a front end cover and a magnetism isolating aluminum plate, and a front cavity inlet pipe and a front cavity outlet pipe on the front closed water flow cavity penetrate through the front end cover and then are externally connected to a water supply and drainage system. A rear closed water flow cavity is formed between the inner plane of a rear end cover and the magnetism isolating aluminum plate, a rear cavity inlet pipe and a rear cavity outlet pipe on the rear closed water flow cavity penetrate through the rear end cover and then are externally connected to the water supply and drainage system. A rear bearing cover is arranged on the rear end cover and fixed to the rear end cover through screws, the inner end of the rear bearing cover stretches into rear cover bearing holes in the rear end cover and abuts against rear bearings. A force separating component is fixed to the front end cover through screws, and the inner end of a component adjusting ring on the force separating component stretches into front cover bearing holes in the front end cover and abuts against front bearings. Inner-ring-free bearings are arranged between the outer end of the force separating component and a triangular belt wheel. A hard chromium alloy water resistant layer is compounded to the surfaces of outer bearing supporting circles of the force separating component.

Description

technical field [0001] The invention relates to a special electric motor for EMU locomotives, which has double strict requirements on size space and service life, and specifically relates to a chrome alloy disc type V-belt pulley 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. The traditional radial field permanent magnet motor has a competitive relationship between the electric load and the magnetic load in space. Therefore, the power density and output torque density of the motor are small, and it is generally made into a torque motor with high torque, but the material cost is high. In the existing disc type permanent magnet motor, the main magnetic field of the air gap is axial, also known as the axial magne...

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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