钢坯修磨机电液伺服加载系统跟随特性的研究  

Study on following characteristics of electro-hydraulic servo loading system of steel conditioning machine tool

作　　者：沙道航[1] 杨华勇[1] 葛思华[2] 何钺[2] 

机构地区：[1]浙江大学 [2]西安交通大学

出　　处：《重型机械》1997年第1期33-37,共5页Heavy Machinery

摘　　要：对国产MG－H型钢坯修磨机电液伺服加载系统建立了动态加载力的数学模型，并提出采用动态刚度来评价加载系统的跟随特性。通过仿真分析了加载机构自重、库仑摩擦力及非对称液压缸附加流量对动态刚度的影响，最后提出了改善加载系统跟随特性的措施。In this paper, the mathematical model is developed for the electro-hydraulic servo loading system of MG-H steel conditioning machine tool. And then the dynamical stiffness is obtained to evaluate the following characteristics of the loading system. The effects of gravity, coulomb friction and flow step of asymmetrical cylinder on the dynamical stiffness is analyzed with lots of simulation results. Finaly, the ways are put forward to improve the following characteristics of the loading system.

关 键 词：钢坯修磨 伺服控制 钢坯修磨机 

分 类 号：TF776[冶金工程—钢铁冶金]