基于PLC的直埋夹套管试验控制系统设计  

Design of Directly-buried Jacket Pipe Test Control System Based on PLC

作　　者：王颖[1] 张丹丹[2] 王一宁[1] 刘英[2] 徐兆军[2] 

机构地区：[1]江苏省特种设备安全监督检验研究院,江苏南京210035 [2]南京林业大学机械电子工程学院,江苏南京210037

出　　处：《林业机械与木工设备》2014年第12期27-31,共5页Forestry Machinery & Woodworking Equipment

基　　金：国家质检总局科技项目"直埋夹套管总体拉压与轴向滑动性能试验装置研制"(2013zjjg056);江苏省特种设备安全监督检验研究院项目"直埋夹套管试验设备技术改造"(苏特检(2012)协字第660号)

摘　　要：在分析国家压力管道元件质量监督检验中心原有直埋夹套管试验设备局限性的基础上,采用PLC可编程控制对原有砂箱试验装置进行了改造,克服了原有砂箱设备笨重、工作效率低等缺点。为实现试验系统的自动化,采用PLC的EM253位置控制拓展模块输出高速脉冲来精确控制伺服电机的速度和位置,试验拉力通过EM231模拟量模块输出,确保总体抗压强度及工作管轴向移动性能试验结果可靠,并实现了自锁、互锁功能。Based on the analysis of the limitations of original directly buried jacket pipe test equipment in the National Pressure Pipe Component Quality Supervision and Inspection Center, PLC is used to transform original sand box test devices, thereby overcoming such defects of original sand boxes as large weight and low working efficiency. In order to realize automation of the test system, the PLC-based EM253 position expansion module provides high-speed pulse output to accurately control the speed and position of servo motors,with test tension output based on EM231 analog module to ensure overall compressive strength. The result of the working pipe axial movement performance test is reliable, realizing self-locking and interlocking functions.

关 键 词：直埋夹套管 可编程控制 伺服电机 EM253 

分 类 号：TH39[机械工程—机械制造及自动化]