Safeguard system of rubber wheel vehicle

Abstract

The invention provides a safeguard system of a rubber wheel car. When the vehicle exceeds limit first-level vehicle speed, an exhaust brake closes a butterfly valve and stops supplying fuel oil, in this way, kinetic energy of the vehicle is consumed, and an auxiliary braking effect is achieved; when the vehicle does not achieve an expected speed reduction effect under the auxiliary effect of the exhaust brake, and the vehicle speed exceeds limit second-level set vehicle speed, an air-cut brake of the vehicle is automatically started and plays a role in brake speed reduction; under the condition that stalling happens on the car, current two levels of brake systems can not effectively achieve the brake effect, and the vehicle speed exceeds limit third-level vehicle speed, a control system will automatically start a roadway road surface intercepting mechanism to effectively intercept the vehicle with stalling. The system is simple in structure, high in practicability and easy to refit on a common mine vehicle, intelligently controls the vehicle speed and intercepts the vehicle with stalling.

Description

technical field [0001] The invention relates to a mining vehicle safety protection system. Background technique [0002] Vehicles working in coal mines and mining vehicles are often overloaded when working in underground mines, and the brakes fail when going downhill or vehicles that cannot be put into gear appear to slide. Due to severe overloading, under the action of gravitational acceleration, the inertia of the vehicle movement is increased, which directly leads to brake failure. In addition, mining vehicles rarely perform maintenance work for a long time, so it often leads to accidents of brake system failure due to lack of regular maintenance. Because there are too many impurities in the brake pump, the seal is not tight, the brake oil is seriously polluted, etc., after the brake system is heated, there will be oil leakage from the brake pump, air leakage from the gas storage tank or the pipeline interface, resulting in brake failure. It is also one of the main caus...

AI Technical Summary

Problems solved by technology

Due to severe overloading, under the action of gravity acceleration, the vehicle inertia is increased, which directly leads to brake failure

In addition, mining vehicles rarely perform maintenance work for a long time, so it often leads to accidents of brake system failure due to lack of regular maintenance

Because there are too many impurities in the brake pump, the seal is not tight, the brake oil is seriously polluted, etc., after the brake system is heated, there will be oil leakage from the brake pump, air leakage from the gas storage tank or the pipeline interface, resulting in brake failure.

It is also one of the main causes of vehicle brake failure due to improper operation of the driver when braking. For example, going downhill for a long time will cause friction and heat of the brake pads, carbonization of the brake hub, and complete failure of the brake function.

The stalling of coal mine operating vehicles due to brake failure is one of the main causes of traffic accidents; in addition, when driving downhill with a full load, the driver's operation error causes the vehicle to fail to shift gears when going downhill, which is also the main cause of mine vehicle accidents.

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