Narrow-gauge electric motor car

Abstract

The invention relates to a narrow-gauge electric motor car, which is characterized by comprising two segments of motor cars, wherein a plurality of trail cars are arranged between the two segments of motor cars; an electric control system and a driving power supply are arranged in each segment of motor car; the driving power supply comprises an inverter and a direct-current storage battery connected with the inverter; two power steering bogies are arranged at the bottom of each segment of motor car, one power steering bogie is arranged at the bottom of the car body below the inverter, and the other power steering bogie is arranged between the rear end part of the motor car and the front end part of the adjacent trail car; two traction motors are arranged on each power steering bogie in parallel with the wheel shaft direction; each traction motor is connected with a primary reduction gear through a coupling; and each trail car comprises multiple segments of carriages, a plurality of non-power steering bogies, windscreens connected between carriages, passing platforms and hinge devices. The narrow-gauge electric motor car provided by the invention can be widely used for coal mining, tunnel excavation, light rail subway and other various occasions requiring narrow gauge transport.

Description

Technical field [0001] The invention relates to an electric locomotive, in particular to a narrow-gauge electric locomotive suitable for narrow-gauge transportation such as mine mining and tunnel excavation. Background technique [0002] The locomotives used in the existing mines generally adopt narrow gauges with gauges of 900mm, 720mm and 600mm for transportation. The locomotive designed according to the national standard has a maximum speed of 10.8km / h, while the existing locomotive speed is only 4-6km / h, the driving power supply of the locomotive uses lead-acid batteries, and the running parts of the locomotive use steering gears, and the carriages are generally open structure, and they are not connected to each other. The above-mentioned existing locomotives have the following problems: 1. The locomotive travels too slowly, especially when the working face is located far away, it usually takes a long time for transportation, which increases the auxiliary working time and re...

AI Technical Summary

Problems solved by technology

The above-mentioned existing locomotives have the following problems: 1. The running speed of the locomotive is too slow, especially when the working face is located far away, it usually takes a long time for transportation, which increases the auxiliary working time in the mine and reduces the production efficiency

2. Since the frame of the steering gear and the wheel set are rigid welded structures, the elastic displacement between the wheel set and the frame will cause the wheel-rail angle of attack to be large when the curve passes, so that the locomotive will often derail when turning. Once the locomotive derails , will endanger the safety of workers

3. Since the frame of the steering gear and the wheel set are rigid welded structures, there is no shock absorbing device, and the disturbance from the rails is directly transmitted to the car body, causing vibration and noise in the car, making the ride uncomfortable

4. Since the steering gear is installed under each carriage, the distance between the wheel pairs of adjacent carriages is relatively long. When the carriage turns a small turn, the displacement of the end of the carriage is large. If there is a car coming from the opposite direction, it will appear scratch problem

5. The drive power of existing locomotives uses lead-acid batteries, which are not only large in size, heavy in weight, and low in storage capacity, but also cannot be recharged as they are used, which also pollutes the environment

6. Since each carriage is an open structure and is not connected to each other, once an accident occurs, the carriage will not have any shielding effect on the occupants of the carriage, and the personnel at the accident point will not be able to quickly transfer to other carriages in time, and the safety problem cannot be maximized limited guarantee

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