Main case water-cooling tungsten alloy triangle belt wheel motor

Abstract

The invention relates to a motor special for a motor train locomotive and provides a main case water-cooling tungsten alloy triangle belt wheel motor. The motor comprises a motor case, a front end cover, a rear end cover, a motor spindle, a stator, a rotor and triangle belt wheels. According to the improvement, a cooling interlayer is arranged between the outer wall and the inner wall of the motor case and arranged by bypassing a lead window, the two periphery isolated two ends of the cooling interlayer are provided with a water inlet penetrating hole and a water outlet penetrating hole respectively, the water inlet penetrating hole and the water outlet penetrating hole are spaced through an isolating rib, a front end flow guide rib arranged on the inner side of the front end face of the case and a rear end flow guide rib arranged on the inner side of the rear end face of the case are arranged in a misplaced mode, a water outlet taper thread is arranged on a water outlet lug, the bottom of the water outlet taper thread leads to the water outlet penetrating hole, a water inlet taper thread is arranged on a water inlet lug, the bottom of the water inlet taper thread leads to the water inlet penetrating hole, component force members are fixed to the front end cover, inner-ring-free bearings are arranged between the component force members and the triangle wheels, and a tungsten alloy hard wearing layer is arranged on the surface of the supporting circle of each outer bearing of each component force member in a compositing mode.

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 in particular relates to a casing water-cooled tungsten alloy V-belt motor. Background technique [0002] High-speed EMUs have special and strict requirements on the performance of the electric motor of the traction system, such as high torque, low noise, bending moment resistance and efficient heat dissipation, etc. For this reason, most developed countries in Europe and the United States adopt various water-cooling structures for improvement. Existing high-voltage motors have huge radiators placed on top of the motor. For example, in the YKK450 motor, the inner space of the radiator is covered with 343 heat dissipation pipes. The heat generated by the motor squeezes the hot air in the inner cavity of the motor into the inner cavity of the radiator under the action of the inner fan, and then returns to the in...

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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