静压造型线伺服直驱泵控液压系统的理论计算与工程实践  

Theoretical calculation and engineering practice of servo direct drive pump controlled hydraulic system for air-flow high pressure squeeze moulding line

作　　者：张友亮 赵林栋 董永博 张成纪 李建松 田丽红 沈志昆 吴俊建 ZHANG Youliang;ZHAO Lindong;DONG Yongbo;ZHANG Chengji;LI Jiansong;TIAN Lihong;SHEN Zhikun;WU Junjian(SINOMACH Foundry and Metal Forming Co.,Ltd.,Jinan 250306,Shandong China)

机构地区：[1]国机铸锻机械有限公司,山东济南250306

出　　处：《中国铸造装备与技术》2021年第1期20-24,共5页China Foundry Machinery & Technology

摘　　要：静压造型线采用液压传动,常规动力系统由三相异步电机驱动,通常系统发热严重,存在较高的功率损失。为有效降低系统能耗,依托“清洁铸造、锻压设备绿色产品设计平台及示范应用”国家科技重大专项,液压系统采用伺服直驱泵控技术方案,由控制时序得出负载流量循环,进而折算为伺服电机转速,充分发挥液压传动与电气控制的双重优点。实践表明,伺服电机能快速响应指令变化,达到负载流量、压力匹配,与常规动力系统相比具有较低的能耗。本次实践将对新设备设计及旧设备改造具有重要的参考价值。The air-flow high pressure squeeze moulding line adopts hydraulic transmission,and the conventional power system is driven by a three-phase asynchronous motor with usual serious heat generating system which causes higher power loss.In order to effectively reduce the energy consumption of the system,on the basis of"clean foundry and metal forming equipment green product design platform and demonstration application"national science and technology major project,the hydraulic system adopts a servo direct drive pump controlled technology solution.The load flow cycle has been obtained from the control sequence,and then converted into the speed of the servo motor,which fully plays the part of dual advantages of hydraulic transmission and electrical control.The practice has shown that the servo motor can quickly respond to command changes,achieve load flow and pressure matching,which has lower energy consumption by comparing with conventional power systems.This practice will provide important reference value for the design of new equipment and the transformation of old equipment.

关 键 词：静压造型 伺服直驱泵控 直驱式容积控制 节能 

分 类 号：TG23[金属学及工艺—铸造]