基于QCS014A实验台的比例阀实验系统

发布时间：2018-03-22 00:02

本文选题：电液比例阀　切入点：LabVIEW软件　出处：《实验室研究与探索》2017年06期 　论文类型：期刊论文

【摘要】：基于原有QCS014A实验台开发了电液比例阀实验系统,在充分利用现有设备硬件基础上进行硬件补充和软件编制。该系统运用LabVIEW软件编写系统人机界面,通过串口实现人机界面和PLC通信,设定的控制参数通过PLC实现电磁阀通断和比例阀的阀芯位置控制,PLC同时采集压力流量等信号反馈给人机界面,经过相应处理,界面实时显示实验结果波形和比例阀性能指标。该比例阀实验系统可以进行电液比例换向阀、电液比例流量阀、电液比例溢流阀性能测试,实现比例阀的稳态控制特性、稳态负载特性、动态特性曲线测量。同时,为了加深学生对比例阀运用的了解,系统还可进行双缸同步实验,通过PID控制实现双缸精确同步。借此系统,开设了比例阀的性能测试和双缸同步实验,取得了良好实验效果。
[Abstract]:The electro-hydraulic proportional valve experimental system is developed based on the original QCS014A experimental platform. The hardware supplement and software programming are carried out on the basis of making full use of the hardware of the existing equipment. The system uses LabVIEW software to write the man-machine interface of the system. The man-machine interface and PLC communication are realized through serial port, and the control parameters are realized by PLC to realize the solenoid valve break and the valve core position control of proportional valve. At the same time, the signals such as pressure and flow are collected and fed back to the man-machine interface. The experimental system can test the performance of electro-hydraulic proportional directional valve, electro-hydraulic proportional flow valve and electro-hydraulic proportional relief valve, and realize the steady state control characteristic of proportional valve. At the same time, in order to deepen students' understanding of the use of proportional valves, the system can also carry out two-cylinder synchronization experiments, through PID control to achieve two-cylinder accurate synchronization. The performance test of proportional valve and the experiment of two-cylinder synchronization have been carried out, and good experimental results have been obtained.
【作者单位】：四川大学制造科学与工程学院;
【分类号】：TH137.52

【相似文献】