CN207345785U - A kind of intelligent pneumatic power braking system of mining electric locomotive - Google Patents

Abstract

The utility model discloses an intelligent pneumatic braking system for a mining electric locomotive, which comprises a motor, an air compressor, a cooler, an air tank, an automatic drain, a safety valve, a pressure relay, a water separator, an oil mist device, a pressure Meter, manual button valve, sand sprinkler, horn, foot gate valve, two-position five-way electromagnetic reversing valve, muffler, shuttle valve, pressure reducing valve, cylinder. The motor is the power source of the air compressor. The air compressor is connected to the motor through an elastic coupling. The air compressor, cooler, and air tank are connected through a pneumatic pipeline. The water and dust in the water will be injected into the fine mist lubricating oil by the lubricator, and then divided into two paths, one through the foot gate valve, one through the two-position five-way electromagnetic reversing valve, and the two paths are combined at the shuttle valve to drive the brake cylinder. brake. The two-position five-way electromagnetic reversing valve is controlled by a single-chip microcomputer, which can realize intelligent deceleration or braking, improve the performance of the pneumatic braking system of the mining battery electric locomotive, and reduce its emergency braking distance.

Description

An Intelligent Pneumatic Brake System for Mining Electric Locomotive

technical field

The utility model relates to a braking system, in particular to an intelligent pneumatic braking system for a mining electric locomotive.

Background technique

my country's coal reserves rank among the top in the world. The coal industry is developing rapidly, and coal is still the main energy source in our country. Mining locomotives are one of the main means of transportation for coal production in my country, and underground transportation is dominated by electric locomotives, and more than 80% of coal is transported by electric locomotives. The mining battery electric locomotive implements emergency braking in case of an emergency or a red light. However, the current mining battery electric locomotives used in mines in my country generally have the problem of exceeding the limit of the braking distance, and the underground light is dim, it is difficult for the locomotive driver to determine the exact position of the locomotive by feeling, and sometimes the driver cannot find it when he is tired. Red light signals are very prone to safety accidents and cause huge losses. To sum up, in order to improve the performance of the pneumatic braking system of the mining battery electric locomotive and reduce its emergency braking distance, it is necessary to analyze and improve the braking system.

Contents of the invention

The utility model provides an intelligent pneumatic braking system for mine electric locomotives in order to avoid the disadvantages of the above-mentioned prior art.

The technical scheme adopted in the utility model is:

An intelligent pneumatic braking system for a mining electric locomotive, characterized in that it includes an electric motor, an air compressor, a cooler, an air tank, an automatic drain, a safety valve, a pressure relay, a water separator, a lubricator, and a pressure gauge , Manual button valve, sand box, horn, foot gate valve, two-position five-way electromagnetic reversing valve, muffler, shuttle valve, pressure reducing valve, cylinder.

The two-position five-way electromagnetic reversing valve is intelligently controlled by a single-chip microcomputer.

The air compressor is connected with the motor through an elastic coupling.

The cylinder is an actuator that pushes the electric locomotive to brake.

The technical effects directly brought by the above technical solution are: 1. The air in the main pipeline is introduced into the pressure relay, and the pressure relay drives the motor of the air compressor for control according to its electrical signal. When the pressure exceeds 0.7Mp, the motor power is cut off, and when the air pressure is lower than 0.5Mp, the motor power is turned on to drive the air compressor to continue working.

2. The highest pressure in the cylinder is controlled by the pressure reducing valve, so as to control the length of the braking distance and prevent the locomotive from "slipping" caused by excessive braking force.

3. The radio receiving system installed on the mining battery electric locomotive receives the signal, and then controls the two-position five-way electromagnetic reversing valve through the single-chip microcomputer, thereby controlling the cylinder to push the actuator to implement deceleration or braking.

Description of drawings

Figure 1 is a schematic diagram of the air pressure circuit.

In the figure: 1 air compressor, 2 electric motor, 3 pressure relay, 4 cooler, 5 air tank, 6 automatic drain, 7 safety valve, 8 water separator, 9 lubricator, 10 pressure gauge, 11 manual button valve , 12 sand box, 13 horn, 14 foot gate valve, 15 two-position five-way electromagnetic reversing valve, 16 muffler, 17 shuttle valve, 18 pressure reducing valve, 19 cylinder.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is set forth in detail.

As shown in Figure 1, the intelligent pneumatic brake system of a kind of mining electric locomotive of the present invention is characterized in that, comprises air compressor 1, electric motor 2, pressure relay 3, cooler 4, gas tank 5, automatic drainer 6. Safety valve 7, water separator 8, lubricator 9, pressure gauge 10, manual button valve 11, sand spreading box 12, horn 13, foot gate valve 14, two-position five-way electromagnetic reversing valve 15, muffler 16, Shuttle valve 17, pressure reducing valve 18, cylinder 19.

The motor 2 is the power source of the air compressor 1, and the air compressor 1 is connected to the motor 2 through an elastic coupling; one end of the cooler 4 is connected to the outlet of the air compressor 1 through a pneumatic pipeline, and the other end is connected to the inlet of the gas tank 5 The compressed air produced by the air compressor 1 enters the air tank 5 after being cooled by the cooler 4; the automatic drain 6 is arranged at the bottom of the air tank 5 for discharging the condensed water at the bottom of the air tank 5; the safety valve 7 It is installed at the outlet end of the air tank 5 through the air pressure pipeline, and is used for pressure relief when the pressure is too high; the outlet end of the air tank 5 is connected with the water separator 8 through the air pressure pipeline to remove free moisture and dust, water The outlet end of the separator 8 is connected to the lubricator 9 through the air pressure pipeline, and the outlet end of the lubricator is divided into two paths through the air pressure pipeline, one through the foot gate valve 14 and the manual control valve 11, and the other through the two-position five-way electromagnetic commutation Valve 15, the two circuits converge at the shuttle valve 17; the pressure relay 3, one end is connected to the main road air pressure pipeline, and the other end is connected to the motor 2, and the motor 2 is controlled according to its electrical signal; the pressure reducing valve 18 is connected to the shuttle valve The valve 17 is connected to control the highest pressure in the cylinder, thereby controlling the length of the braking distance and preventing the locomotive from "skidding" due to excessive braking force; the cylinder 19 pushes the actuator of the electric locomotive to decelerate or brakes.

Claims (4)

1. the intelligent pneumatic power braking system of a kind of mining electric locomotive, it is characterised in that including motor, air compressor machine, cooler, gas Tank, automatic water trap, safety valve, pressure switch, separator, oil sprayer, pressure gauge, hand push button valve, the case that sands, loudspeaker , backpedalling brake valve, two-position five-way solenoid directional control valve, silencer, shuttle valve, pressure reducing valve, cylinder, the motor is the power of air compressor machine Source, air compressor machine are connected by yielding coupling with motor；The cooler connects air compressor machine by pneumatic circuit one end and exports End, one end connection gas tank input end；The automatic water trap is arranged on gas tank bottom, for discharging the condensed water of gas tank bottom； The safety valve is installed on gas tank outlet end by pneumatic circuit, when hypertonia, for pressure release；The gas tank outlet end leads to Cross pneumatic circuit to be connected with filter, remove free moisture and dust, filter outlet end passes through pneumatic circuit and oil sprayer Connection, the oil sprayer port of export are divided into two-way by pneumatic circuit and manipulate through backpedalling brake valve and manually valve all the way, and another way is through two Five electric change valves of position, two-way collect at shuttle valve；The pressure switch, one end are connected with main road air-pressure duct, one end It is connected with motor, motor is controlled according to its electric signal；The executing agency of the cylinder pushing motor car braking Implement to slow down or brake.

A kind of 2. intelligent pneumatic power braking system of mining electric locomotive according to claim 1, it is characterised in that described two Five electric change valves of position are controlled by microcontroller, and the radio receiving system on mining electric locomotive receives signal, so Two-position five-way solenoid directional control valve is controlled by microcontroller afterwards, so as to control cylinder pushing executing mechanism to implement to slow down or brake.

3. the intelligent pneumatic power braking system of a kind of mining electric locomotive according to claim 1, it is characterised in that described subtracts Maximum pressure in pressure valve control cylinder, so as to control the length of braking distance and prevent from causing locomotive to be sent out because brake weight is excessive Raw " skidding " phenomenon.

4. the intelligent pneumatic power braking system of a kind of mining electric locomotive according to claim 1, it is characterised in that oil sprayer goes out The pneumatic circuit of mouthful end connection is divided into two-way, manipulates through backpedalling brake valve and manually valve all the way, another way is through two-position five-way electromagnetism Reversal valve, it is achieved thereby that the artificial backpedalling brake brake of electric locomotive and intelligent braking.