摘要
针对高温环境、空间受限、周边空间构造复杂的小口径调节阀阀门开度控制问题,设计了一种基于“钢丝-套管”传动的空间局限小位移阀门开度控制执行机构。通过分析杠杆旋转角度与顶针行程、杠杆拉线行程之间的关系,结合杠杆理论,选取了满足空间条件的两组执行机构关键参数的取值。根据这组参数利用Inventor建立该机构的三维模型并导入Adams中建立运动学与动力学模型,对该模型在角速度驱动和不同杠杆拉线拉力F_(1)的作用下整个机构达到稳定状态分别进行了仿真,并对仿真结果进行对比分析。研究表明:执行机构设计参数l_(2)=9 mm时的执行机构能够更好地减轻杠杆拉线的拉力,保障执行机构安全运行。
This study aims to address the valve opening control problem for small diameter regulating valve in high temperature environment with limited space and complex surrounding structure.A space-limited small displacement valve opening control actuator based on“steel wire casing”transmission is designed.Lever theory is used to analyze the relationship between the rotation angle of the lever.The stroke of the thimble,the lever pull wire,and two groups of key parameters of the actuator meeting the space conditions are selected.Using these parameters,a three-dimensional model of the mechanism is established in Inventor and imported into Adams to establish the kinematics and dynamics model.The simulation results indicate that an actuator with a design parameter of l_(2)=9mm(l_(2) is the design parameter of the actuator)can better reduce the tension of the lever stay wire and ensure the safe operation of the actuator.
作者
章桥新
甘方程
余金桂
夏天
赵刚
龚彩云
ZHANG Qiaoxin;GAN Fangcheng;YU Jingui;XIA Tian;ZHAO Gang;GONG Caiyun(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering,Wuhan University of Science and Technology,Wuhan 430081,China)
