Stringing disc-type electric locomotive

Abstract

The invention discloses a stringing disc-type electric locomotive which comprises a vehicle frame. One end of the vehicle frame is provided with a driving cab, the upper portion of the vehicle frame is provided with a pantograph, the bottom of the vehicle frame is provided with a walking device, and the walking device is linked to a guide plate support of the vehicle frame through bearing boxes at the two ends of the walking device. The walking device comprises a pair of wheels installed on the two sides of the vehicle frame, a wheel shaft, the bearing boxes at the two ends of a vehicle shaft, speed reduction boxes in the middles of the wheels, elastic couplers and disc-type direct-current brushless traction motors, wherein the wheel shaft is connected with the output ends in the speed reduction boxes, power input shafts of the speed reduction boxes are connected with output shafts of the disc-type direct-current brushless traction motors through the elastic couplers, and the disc-type direct-current brushless traction motors are connected to a direct-current variable-frequency governor through signal transmission lines. Compared with an alternating current variable-frequency electric locomotive popularized and applied nowadays, the stringing disc-type electric locomotive has the advantages that output torque is large, speed adjustment is smooth, electric braking response is quick, the braking distance is short, safety is high, harmonic interference does not exist and the failure rate is low.

Description

technical field [0001] The invention relates to the technical field of electric locomotives, in particular to a cable-type 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 locomoti...

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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