六面顶压机合成过程中线性卸压机构的设计与应用  

Design and application of linear pressure relief mechanismin the synthesis process of cubic press

作　　者：王本亮 熊莎莎[1,2] 冯晓鹏 刘明岗 岳海姣[2] 华淑杰 WANG Benliang;XIONG Shasha;FENG Xiaopeng;LIU Minggang;YUE Haijiao;HUA Shujie(Henan Mechanical and Electrical Vocational College,Zhengzhou 451191,China;Henan Key Laboratory of Intelligent Manufacturing Equipment for Superhard Materials,Zhengzhou 451191,China;Henan Minghua Intelligent Systems Research Institute Co.,Ltd.,Zhengzhou 450001,China)

机构地区：[1]河南机电职业学院,郑州451191 [2]河南省超硬材料智能制造装备集成重点实验室,郑州451191 [3]河南明华智能系统研究院有限公司,郑州450001

出　　处：《金刚石与磨料磨具工程》2021年第4期36-44,共9页Diamond & Abrasives Engineering

基　　金：郑州市2020年度重大科技创新专项(2020CXZX0063)。

摘　　要：为解决六面顶压机合成过程中超高压卸压不平稳和速度慢的难题,对其卸压机构采用自动、线性方式进行设计及优化。基于液压控制理论,使用AMESim软件建立六面顶压机工作模型、控制模型及线性卸压模型;编制4类不同的卸压工艺曲线,基于经典PID(proportion integral differential)控制理论,对线性卸压模型进行仿真计算,并以阀芯半锥角及阀座节流孔直径为变量,得出满足工艺要求的线性卸压方案。对设计的线性卸压机构进行实际测试,实际压力与设定压力曲线的压力偏差绝对值≤0.01 MPa,符合预期设计要求。To solve the problems of instability and slow speed of ultra-high pressure relief in the synthesis process of cubic press,the pressure relief mechanism is designed and optimized automatically and linearly.Based on the hydraulic control theory,the working model,the control model and the linear pressure relief model of the cubic press are established by using AMESim software.Four kinds of different pressure relief process curves are compiled.Based on the classical PID(proportion integral differential)control theory,the linear pressure relief model is simulated and calculated.Taking the half cone angle of the valve core and the diameter of the throttle orifice of the valve seat as variables,the linear pressure relief scheme meeting the process requirements is obtained.The actual test of the designed linear pressure relief mechanism shows that the absolute value of the pressure deviation between the actual pressure curve and the set pressure curve is less than or eaqual to 0.01 MPa,which meets the expected design requirements.

关 键 词：线性卸压 PID控制 阀芯半锥角 阀座节流孔 卸压偏差 

分 类 号：TH6[机械工程—机械制造及自动化] TQ164[化学工程—高温制品工业]