Internal combustion locomotive double-heading traction drive device

Abstract

The invention discloses an internal combustion locomotive double-heading traction drive device which comprises two locomotive main drive systems. In each locomotive main drive system, a generator, a traction generator, a rectifying device and a first direct current contactor are connected in sequence, a locomotive double-heading direct current bus and a locomotive direct current bus are divided behind the first direct current contactor, the locomotive direct current bus has three branch circuits, one is connected with a traction motor through a traction converter, one is connected with auxiliary electricity utilization equipment through an auxiliary converter, an isolation transformer and a filtering device in sequence, and another one is connected with a resistance braking device through a resistance braking converter. The locomotive double-heading direct current buses and the locomotive direct current buses of the two locomotive main drive systems are in cross connection. The internal combustion locomotive double-heading traction drive device has the advantages that heavy haul traction can be achieved by slightly remolding existing components; working conditions of double-heading locomotives can be selected at will according to practical traction needs, and economical efficiency is good.

Description

technical field [0001] The invention relates to the technical field of internal-combustion locomotives, in particular to a double-coupled traction transmission device for internal-combustion locomotives. Background technique [0002] When diesel locomotives are double-connected for traction, all double-connected locomotives must be required to work at the same time in order to exert the tractive force of the two locomotives. When the heavy-duty locomotive is in the low-speed and heavy-load traction operation state, the speed requirement is not high, but the traction force requirement is relatively large. Therefore, two locomotives must work at the same time. As a result, the diesel engines of the two locomotives both work in the low-speed region with relatively high fuel consumption, which greatly reduces the utilization efficiency of the whole vehicle and increases the operating cost. [0003] In order to achieve low-speed and heavy-load traction, the following two measure...

AI Technical Summary

Problems solved by technology

[0007] ⑴ The line must be rebuilt to improve its passing capacity, but this requires a lot of investment

[0010] ⑴ The structure of the running part of the locomotive is complex and the maintenance cost is high

[0011] ⑵ The locomotive has a large external dimension, which cannot meet the domestic rolling stock limits, let alone Africa, South America, Australia and other countries' rolling stock limits

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