Air charging and discharging control device for air spring supporting system

Abstract

The invention relates to an air charging and discharging control device for an air spring supporting system. The control device is provided with a site control box and an indoor control box, wherein an air charging electromagnetic valve and an air discharging electromagnetic valve are arranged in the site control box; one end of the air charging electromagnetic valve is connected with a main air supply pipeline, and the other end of the air charging electromagnetic valve is connected with an additional air chamber of the air spring supporting system and used for performing air charging control; one end of the air discharging electromagnetic valve is connected with the additional air chamber of the air spring supporting system, and the other end of the air discharging electromagnetic valve is communicated with atmospheric air and used for performing air discharging control; a programmable logic controller (PLC) and a human-computer interface which is connected with the PLC are arranged in the indoor control box; and the PLC is electrically connected with the air charging electromagnetic valve and the air discharging electromagnetic valve and electrically connected with a pressure transmitter which is arranged on the additional air chamber of the air spring supporting system. The air charging and discharging control device for the air spring supporting system has the advantages that: under the control of the PLC, the air charging electromagnetic valve and the air discharging electromagnetic valve work to perform air charging and discharging on the air spring supporting system, so the air spring supporting system has different air-charging pressures, and static carrying of different vehicle weights is realized.

Description

technical field [0001] The invention relates to an air spring support system of a railway vehicle fatigue and vibration test bench, in particular to a filling and exhaust control device for the air spring support system of a railway freight car fatigue and vibration test bench. Background technique [0002] In the fatigue test condition of the railway vehicle body, the air spring support system mainly acts on the static load of the railway freight car body and the longitudinal loading rod. When the car body is tested, it moves with the car body loading actuator. The system does not perform inflation and exhaust actions. Due to the different weights of different trucks, the air spring system needs to have different load-bearing capacity. The load-bearing capacity of the air spring support system is realized by adjusting the compressed air pressure inside the air spring. Therefore, a special charging and exhausting system is required. The control device is used to control the...

AI Technical Summary

Problems solved by technology

At present, there is no device that can realize this professional control function. This invention is a device specially developed for the control of charging and exhausting of the air spring support system of the railway wagon fatigue and vibration test bench.

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