A compound braking system and method for a coke oven electric locomotive

Abstract

The invention discloses a composite braking system of a coke oven electric locomotive. The system comprises an electromagnetic disc type brake and a pneumatic unit brake shoe brake, wherein the electromagnetic disc type brake is arranged on a walking device, the pneumatic unit brake shoe brake is arranged on a wheel, and when an electric control system controls a driving motor to slow down to a set speed, the electromagnetic disc type brake carries out main braking, and the pneumatic unit brake shoe brake carries out auxiliary braking. The invention also discloses a composite braking method of the coke oven electric locomotive. When the technical scheme is implemented, the system and the method have the following beneficial effects that the safe parking of the electric locomotive is ensured through determining the primary and secondary relation of the two kinds of brakes of the braking system in the braking work of the electric locomotive, the driving force sources of the two brakes are relatively independent, the braking force is provided in two modes of electric control and pneumatic control, the condition that all brakes cannot be in failure after the loss of one kind of driving force is guaranteed, the structure is simple, and the stability is high.

Description

technical field [0001] The invention relates to the field of coke oven mechanical equipment, more specifically, to a braking system and method for an electric locomotive running on the track of a coke oven quenching car. Background technique [0002] Electric locomotives are widely used in my country's coking industry. The running speed of electric locomotives can reach 200m / min or even higher, so they must have safe, reliable, and stable performance, and the braking system on the electric locomotive plays a role in it. Key role. [0003] At present, there are many forms of braking systems on current electric locomotives, working principles and equipment components. The traditional braking system is to set a normally open disc brake on the high-speed shaft of the reducer (the air circuit supplies air during braking, and the brake is closed. braking), and brake shoe brakes (a pair of brake shoes driven by the cylinder through the connecting rod act on the wheels) to brake the...

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Problems solved by technology

[0003] At present, there are many forms of braking system on the current electric locomotive, the working principle and equipment composition. The traditional braking system is to set the normally open disc brake on the high-speed shaft of the reducer (the air circuit supplies air during braking, and the brake is closed. braking), and brake shoe brakes (a pair of brake shoes driven by the cylinder through the connecting rod act on the wheels) to brake the electric locomotive. This form of using pneumatic brakes, the braking time is too long, and the braking force is soft. When there is a sudden power failure, the gas circuit cannot supply air and the electric locomotive cannot be braked; in recent years, there is also a braking form in which only electromagnetic disk brakes are installed on the high or low speed shaft of the electric locomotive. The impact is too large when moving, and once the disc brake is damaged, it often happens that it cannot be used. Because there are no safety protection measures, there are potential safety hazards for the operation and use of electric locomotives.

Regardless of the above-mentioned types of braking systems, there are one-sided and single braking functions, which cannot fully meet the braking requirements that need to be provided in the actual use process, especially in extreme cases, and there are basically no corresponding countermeasures.

Therefore, in terms of braking of domestic electric locomotives at present, there is no reasonable and effective system that can cope with various situations and can brake safely.

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