Hydraulic dynamic loading platform based on industrial computer and PLC control
LI Peng-bin, ZHANG Peng, CHENG Yong-qi, ZHAO Bin, HE Jia-cheng
(School of Materials and Energy, Guangdong University of Technology, Guangzhou 510000, China)
Abstract: Aiming at the problem of low loading accuracy, poor real-time loading and large fluctuation range of mechanical efficiency caused by manual or semi-automatic loading in the mechanical efficiency test of sliding spiral pair, the sliding spiral sub-detection platform, detection system and detection method were studied. A hydraulic dynamic loading platform based on industrial computer and PLC control was proposed. Firstly, the general situation of loading system was described. Then the hardware of the loading system was designed, including the hardware circuit and the hydraulic circuit of the system. The software of loading system was designed, including PC software and PLC program. Finally, the simulated loading experiment of sliding screw pair was carried out.The results show that the system can realize a variety of loading methods, such as dead load, pressure holding and load change, the loading process could be dynamically monitored, the loading force and torque of the sliding screw pair could be collected in real time, the loading force accuracy is reached 98.85%, the mechanical efficiency fluctuation range is less than 5%.
Key words: double cylinder top-to-top; dynamic loading; industrial computer; PLC; control system; simulated loading