【摘要】 介绍了回转盾构刀具切削性能测试平台结构及组成,该测试平台用于研究各种因素对盾构刀具切削性能的影响,为分析盾构刀具切削性能提供数据.为了确保测试平台安全、可靠地运行,并获得准确的实验数据,监控系统的设计就显得尤为重要.根据测控方案以及测试平台监控系统的要求,设计了基于PLC和WinCC的监控系统.该监控系统采用PROFIBUS现场总线进行通信,PLC控制器对测试平台进行逻辑控制,上位机为HMI(触摸屏)和安装有WinCC的IPC(工控机).HMI主要负责实验过程中工艺参数的设置,WinCC可对测试平台运行情况进行实时监控和提供报警保护,并记录试验数据.多次的试验结果表明,该监控系统运行稳定,控制灵敏度高,采集的数据精度高,达到了预定的设计要求.更多还原

【Abstract】 On the basis of understanding the development status of Chinese shield tunneling technology,the structure and component of rotary test platform for cu tting performance of shield tool is introduced in this article.The test platfor m is used to study the effection on cutting performance of shield tool by the va rious factors,and provides the data for analyzing the cutting performance of shi eld tool.To ensure the test paltform to run safely and reliablely,and to obtain accurate experimental data,the design of monitoring system is very apparently im protant.According to the testing project and the requirement of the monitoring system of the test platform,the monitoring system based on PLC and WinCC is desi gned.The monitoring system realizes communication by using PROFIBUS,PLC control ler realizes logic control of the test platform,the host computer consists of HM I(Human Machine Interface) and IPC(Industrial Personal Computer) installed WinCC.HMI is mainly responsible for setting processing parameters during the experim ent,Wincc can provide real-time monitoring for running conditions of the test p a ltform and provide alarm protection,record the experimental data.Many of the t est results showed that the monitoring system is stable with high sensitivity of control,high accurate data acquisition,and attains the intended design requi rements.更多还原