Electric trolley frequency conversion speed-regulating locomotive

Abstract

The invention relates to an electric trolley frequency conversion speed-regulating locomotive. The device mainly overcomes the defects that as the existing pneumatic or handwheel mechanisms brake and respond slowly, the braking distance is long, the braking performance is poor, the brake block is easy to wear, etc. The device also solves the technical problems that owning to large braking force or mechanical reasons, the locomotive wheels lock so as to cause derailment phenomenon and the like. The keys of the technical scheme of the invention are as follows: the locomotive comprises a car frame assembly and a sanding device, wherein a cab assembly is arranged on the front end of the car frame assembly, a walking device and a frequency conversion speed-regulating electric control system are arranged on the car frame assembly, two anti-lock brake devices are separately arranged on the two sides of the walking device; and each anti-lock brake device adopts a normally closed electromagnetic time delay braking device, and the braking device mainly comprises a brake disc spring, a cylinder body, a cylinder column, an electromagnetic iron core, a brake lever, a clamping plate brake body, a brake disc, an electromagnetic pressure switch device and an electric trolley locomotive power-off anti-lock brake device. The electric trolley frequency conversion speed-regulating locomotive can adapt to various hauling operating conditions of the industrial-mineral electric locomotive and the technology of the invention can be used to modify old industrial-mineral electric locomotives.

Description

technical field [0001] The invention relates to an electric locomotive, in particular to an industrial and mining electric locomotive with frequency conversion and speed regulation. Background technique [0002] At present, the existing large-tonnage trolley electric locomotive technology is still immature. The main problem is that the pantograph cannot be electrically braked when the power is lost; the locomotive cannot be controlled after the power is lost; , The braking of the front and rear wheels is inconsistent, resulting in poor braking performance. Most of the large-tonnage trolley-type electric locomotives with a capacity of more than 14 tons use DC wires to take power, and control the DC motor to drive the electric locomotive through voltage regulation and speed regulation through the controller resistance. However, the electric locomotive with this structure has problems such as commutator copper bars and carbon brushes on the DC motor rotor that are easy to wear...

AI Technical Summary

Problems solved by technology

However, it has not yet solved the problem that the wheels of the locomotive may be locked due to excessive braking force or mechanical reasons, and derailment may occur.

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