增压缸在辗扩机液压低速回路中的应用及分析  

Application and Analysis of Super Charge Cylinder in Ring-roll Machine's Hydraulic Low Speed System

作　　者：史晓东[1] 李育锡[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《机床与液压》2006年第12期119-121,164,共4页Machine Tool & Hydraulics

摘　　要：介绍了在油缸低速工作流量小于调速阀最小稳定流量时,通过增压缸与油缸的串联,实现工作油缸稳定低速运动的一种设计方法,并对油缸与增压缸串联后回路的动态特性进行了分析。通过应用于辗扩机液压低速运动回路中的实例表明,该方法可有效地改善机床的低速运行的稳定性和可靠性。A design was introduced to meet the stable low - speed request for cylinder by using super charge cylinder series connected with it when the cylinder＇ s working flow is lower than the minimum control flow through the speed control valve. The circuit＇ s dynamic performance was analyzed. The application of this method in the ring - roll - machine＇ s hydraulic system indicates that it effectively improves the low speed running stability and reliability of the machine.

关 键 词：增压缸 流量特性 动态分析 辗扩机 低速回路 

分 类 号：TH137.51[机械工程—机械制造及自动化]