钢管旋扩机顶头位置控制的电液伺服系统设计及仿真  

Design and Simulation of Plug Position Control Electric-Hydraulic Servo System of Pipe Rotary Expanding Mill

作　　者：曹美忠[1] 畅兴刚 CAO Meizhong;CHANG Xinggang(Taiyuan Heavy Industry Co.,Ltd.Technology Center,Taiyuan Shanxi 030032,China)

机构地区：[1]太原重工股份有限公司技术中心,山西太原030032

出　　处：《机床与液压》2025年第2期213-217,共5页Machine Tool & Hydraulics

摘　　要：由于机械调整孔型的旋扩机顶杆小车机构的组成特点,采用该旋扩机进行轧制时不能在线调整孔型,从而导致孔型值变化大。针对此问题,设计一种液压在线动态调整轧制孔型的顶杆小车,并根据其结构设计了一种电液伺服控制系统,以补偿由于顶头和轧辊的温度变化导致的轧制孔型参数改变,从而提高钢管的壁厚精度。介绍了该电液伺服控制系统的组成及原理,并利用ITI-SimulationX软件进行建模仿真,对该系统的控制性能进行了仿真分析。结果表明:该设计可以满足轧制孔型在线动态调整的要求。通过轧制后的荒管实测数据验证了该电液伺服控制系统的可靠性。Due to the composition of rotary expanding mill thrust block carriage adopting mechanical adjustment pass,the pass cannot be adjusted on-line using the rotary expanding mill during rolling process,which leads to a large variation in the pass values.In view of the problem,an thrust block carriage of on-line dynamic adjustment pass was designed,and an electric-hydraulic servo control system was designed according to its structure,in order to compensate the pass changes caused by temperature change of rollers and plug,so that enhancing wall thickness precision of steel pipe.The composition and principle of the electric-hydraulic servo system was introduced,and the electric-hydraulic servo system was modeled and simulated based on ITI-SimulationX,the control performance of the system was simulated and analyzed.The simulation results show that the design can meet with the on-line dynamic adjustment request of pass during rolling.The reliability of the electric-hydraulic servo system is verified by measurement data of hollow shells after rolling.

关 键 词：旋扩机 孔型调整 电液伺服系统 仿真 

分 类 号：TH137[机械工程—机械制造及自动化]