A mining explosion-proof electro-hydraulic brake valve

Abstract

The invention belongs to the technical field of mining vehicle braking and particularly provides a mining explosion-proof type electro-hydraulic brake valve. The mining explosion-proof type electro-hydraulic brake valve comprises a ventilation plug, a spring, a valve body, a valve element, a plug, a pilot valve element, a pilot valve sleeve, a tower-type reset spring and an explosion-proof type linear force motor. The valve body is provided with a port A, a port P and a port T, an inner space used for installing the valve element is formed in the valve body, the valve element is arranged in the inner space, the inner space communicates with the port A, the port P and the port T, one end of the valve element makes contact with the plug, the other end of the valve element is connected with the spring, the spring is fixed to the ventilation plug, and the ventilation plug is in threaded connection with the valve body. Electro-hydraulic control over a transport vehicle brake system in an underground coal mine is achieved, the labor intensity of workers is reduced, a transport vehicle in the underground coal mine can develop in the terminal remote control direction and the intelligent unmanned direction, and worker health and coal mine safe and efficient production are facilitated.

Description

technical field [0001] The invention belongs to the technical field of mine vehicle brakes, in particular to an explosion-proof electro-hydraulic brake valve for mines. Background technique [0002] In the underground excavation work face, there are unfavorable factors such as heavy wind and dust pollution, poor visual conditions, dark and humid, and the possibility of disasters such as water penetration, gas outburst, and gas explosion, etc., to realize the remote terminal control or intelligence of the underground vehicle braking system Control is of great significance to workers' health, coal mine safety, and efficient production. [0003] Currently, the driving braking system of underground transport vehicles mostly uses full hydraulic brake pedals, which not only has a high labor intensity for workers, but also makes it difficult to realize the electrification control of the braking system, thus restricting the direction of terminal remote control and intelligent unmann...

AI Technical Summary

Problems solved by technology

[0003] Currently, the driving braking system of underground transport vehicles mostly uses full hydraulic brake pedals, which not only has a high labor intensity for workers, but also makes it difficult to realize the electrification control of the braking system, thus restricting the direction of terminal remote control and intelligent unmanned transport of coal mine underground transport vehicles. develop

At present, the electro-hydraulic brake valves involved in the published data basically do not have explosion-proof functions, and a very small number of electro-hydraulic brake pedals have explosion-proof functions, but they only integrate electric brake devices and hydraulic brake valves, and the There are essential differences, and the structure is complex, bulky, expensive, and the structure, principle, performance parameters, etc. do not match the braking system of the coal mine underground transport vehicle

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