Anti-lock and energy recovery hydraulic braking system for mine electric locomotive

Abstract

The invention provides an anti-lock and energy recovery hydraulic braking system for a mine electric locomotive. The anti-lock and energy recovery hydraulic braking system for the mine electric locomotive has the advantages of safety, reliability and high production efficiency under a condition that a braking force is met. The anti-lock and energy recovery hydraulic braking system for the mine electric locomotive comprises an anti-lock sub system and an energy recovery sub system, wherein the anti-lock sub system comprises a braking pedal, a braking main cylinder, a three-position three-way electromagnetic valve and a liquid accumulator; the braking pedal is connected with the braking main cylinder; the three-position three-way electromagnetic valve is correspondingly connected with the braking main cylinder, a wheel brake and the liquid accumulator through pipelines; the three-position three-way electromagnetic valve can realize three working states of a pressure increasing state, a pressure holding state and a pressure reducing state; an oil supply end of the braking main cylinder is connected with the liquid accumulator through a first pump and a pipeline; the energy recovery sub system comprises a driving axle and a driving motor, wherein the driving axle is arranged between wheels, and the driving motor is arranged on a vehicle; the driving motor is connected with the wheel axle through a transmission device; the wheel axle is connected with a clutch through the driving axle; an oil inlet end of a second pump is connected with an oil tank; an oil outlet end of the second pump is connected with an energy accumulator; and the energy accumulator is also connected with the wheel brake.

Description

technical field [0001] The invention relates to a hydraulic braking system, in particular to an anti-lock and energy recovery hydraulic braking system of a mining electric locomotive, and belongs to the technical field of mining electric locomotives. Background technique [0002] Rail transportation is still the most important and extensive transportation mode in modern coal mines, and it can adapt to the change of transportation distance and the curvature of the roadway. There are millions of mine cars running on the coal mine track, and the braking system is the most closely related to the active safety of the vehicle during the operation of the vehicle. The braking performance of the vehicle is an important indicator of the driving safety of the vehicle. index of. [0003] At present, the traction locomotive for underground track is provided by the traction head and realizes mechanical braking. The mechanical braking system mainly includes the brake shoe and the brake co...

AI Technical Summary

Problems solved by technology

Its main problems are insufficient power, poor braking performance, large operation advance, and difficulty in controlling the vehicle in case of emergency.

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