Electrical control system for tunnel cleaning vehicle

Abstract

The invention discloses an electrical control system for a tunnel cleaning vehicle. A PLC (Programmable Logic Controller) in the system is the core of the entire control system. An input module of the PLC receives the signals of a control cabinet No.1, a control cabinet No.2, a DC cabinet, a power generating unit and a console, and an output module of the PLC is connected with a relay control unit, a driver control unit, a hairbrush lifting unit and a hydraulic control unit respectively. A monitoring device and a human-machine interface are installed on the console and are used for controlling a lighting system of the whole vehicle. The hydraulic control unit is connected with a hairbrush drive valve. The relay control unit is connected with a transfer pump, a handheld spray pump, a spray valve bank, an air compressor and a diaphragm pump. The driver control unit comprises four frequency converters and one soft starter. The invention overcomes the defects of difficult maintenance, poor reliability and the like of the traditional relay control system by adopting the PLC to realize the electrical control system of the tunnel cleaning vehicle. Moreover, the human-machine interface communicates data in real time, so that the electrical control system has high automation degree and perfect functions.

Description

Technical field [0001] The invention relates to an electric control system, and is especially suitable for the electric control system of tunnel and subway cleaning vehicles. Background technique [0002] With the development of science and technology, industrial equipment composed of mechanical components and electrical control systems has become more and more sophisticated in technology and product automation, and is developing in the direction of high reliability, high speed, multi-function, and networking, which is reliable and safe. A control system that integrates economy, control and management can meet the needs of the market. The commonly used control methods are relay loop control, PLC (programmable controller) control system and industrial computer control system. [0003] Currently, cleaning vehicles usually use relay control circuits. In the relay control system, the control devices used are a large number of relays, and the entire system is simple to control...

AI Technical Summary

Problems solved by technology

However, if the process is adjusted and the electrical control system needs to be changed, the entire original electrical control system will be completely dismantled, which consumes a lot of manpower, material resources and time, and the control functions are few, real-time monitoring is not possible, and the reliability is poor.

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