Accumulator disc type electric locomotive

Abstract

The invention discloses an accumulator disc type electric locomotive. The electric locomotive comprises a frame, wherein one end of the frame is provided with a cab; an accumulator is arranged at the upper part of the frame; a walking device is mounted at the bottom of the frame, and is connected with a guiding plate bracket of the frame through bearing boxes at two ends; the walking device comprises one pair of wheels mounted on two sides of the frame, wheel shafts, bearing boxes at two ends of a locomotive shaft, gearboxes at the middle parts of the wheels, elastic couplings and disc type direct current brushless traction motors; the wheel shafts are connected with the output ends of the gearboxes; power input shafts of the gearboxes are connected with output shafts of the disc type direct current brushless traction motors through the elastic couplings; the disc type direct current brushless traction motors are connected to a direct current variable frequency speed regulator through signal transmission wires. Compared with the alternating current variable frequency locomotive vehicle promoted and applied at present, the accumulator disc type electric locomotive has the characteristics of large output torque, smoothness in speed regulation, quickness in electric braking response, short braking distance, high safety, no harmonic wave disturbance and low fault rate.

Description

technical field [0001] The invention relates to the technical field of electric locomotives, in particular to a battery disc electric locomotive. Background technique [0002] Now there are new types of chopper speed-regulating electric locomotives and AC variable-frequency speed-regulating electric locomotives on the market. However, for chopper speed-regulating electric locomotives, although they can steplessly adjust the speed, the motors used are still DC brushed motors. There are commutator copper bars and carbon brushes on the DC motor rotor that are easy to wear and tear; for AC variable frequency speed regulation electric locomotives, although the speed can be adjusted steplessly and there is no brush on the motor, the magnetic field still needs to be charged to establish. It is easy to generate harmonic interference, especially the underground interference to the communication network. Simultaneous starting is prone to shock. The braking of the two electric locomo...

AI Technical Summary

Problems solved by technology

[0002] Now there are new types of chopper speed-regulating electric locomotives and AC variable-frequency speed-regulating electric locomotives on the market. However, for chopper speed-regulating electric locomotives, although they can steplessly adjust the speed, the motors used are still DC brushed motors. There are commutator copper bars and carbon brushes on the DC motor rotor that are easy to wear and tear; for AC variable frequency speed regulation electric locomotives, although the speed can be adjusted steplessly and there is no brush on the motor, the magnetic field still needs to be charged to establish. It is easy to generate harmonic interference, especially the interference to the communication network underground

Simultaneous start is prone to shock

The braking of the two electric locomotives mainly depends on the mechanical braking of the hand wheel. When the operator manipulates the mechanical braking device of the hand wheel, the labor intensity is high, the braking force and braking time vary from person to person, and the braking is slow; The pipeline paths are not equal, the braking force is not synchronized or equal, resulting in vibration or track jumping when the locomotive wheels and brake shoes are superimposed, long braking distance, poor braking performance, large and fast wear of brake shoes, and poor safety performance

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