Diseño y construcción de un sistema inteligente para el control del nivel de aceite en un módulo didáctico de electrohidráulica.

Abstract

This project is based on the need to implement a training module that allows the verification of the correct operation of electrohydraulic systems. For this purpose, a fully automated electrohydraulic press for industrial use has been designed with the help of a PLC LOGO 230RC and a HMI LOGO TD screen, which allows controlling the operation of the press and at the same time having a preventive control of the oil level in the tank to avoid failures due to lack of pressure and lubrication. This system also has the option to implement more elements to perform process operation practices because the pump has an oversizing which allows to execute the required actions. the system has solenoid valves which are controlled by the PLC or manually through start and stop pushbuttons. To release the excess pressure produced by the oil-hydraulic pump, its flow was divided by sending one hose as a blockage and the other to the valve bank as the main fluid pressure line to control the actuation of the oil-hydraulic cylinders of the press, which are connected in parallel according to the design of simultaneous operation of the two cylinders and keep the same pressure in the movable plate of the press. The system has a level sensor that emits a digital signal to the PLC which will allow the power cut in the whole system in case of maintaining a low fluid level according to the programming.