A wire-type electric locomotive

Abstract

The invention discloses a wire-lined disc electric locomotive, which comprises a vehicle frame, a driver's cab is arranged at one end of the vehicle frame, a pantograph is arranged at the upper part of the vehicle frame, and a traveling device is installed at the bottom of the vehicle frame, and the traveling device passes through bearing boxes at both ends and The guide plate brackets of the frame are connected, and the running device includes a pair of wheels installed on both sides of the frame, the wheel axle, the bearing boxes at both ends of the axle, the gear box in the middle of the wheel, the elastic coupling, the disc-type brushless DC traction motor, the wheel axle It is connected to the output end in the reduction box; the power input shaft of the reduction box is connected to the output shaft of the disc-type brushless DC traction motor through an elastic coupling, and the disc-type DC brushless traction motor is connected to the DC frequency conversion speed controller through a signal transmission line. Compared with the AC variable frequency electric locomotive popularized and applied today, the present invention has the characteristics of large output torque, smooth speed regulation, rapid electric braking response, short braking distance, high safety, no harmonic interference and low failure rate.

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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