摘要
以高速冲床的液压控制系统作为研究对象,对该液压系统的动态性能进行研究。首先对液压控制系统进行数学模型建立和动态分析,然后利用Simulate软件对该液压控制系统的频率与时域特性进行分析。结果表明:高速冲床液压控制系统在快降行程、冲压行程、返回行程中都稳定,但是高速液压冲床在快降行程、冲压行程、返回行程时的阶跃响应调节时间偏长,超调量过大,严重影响了冲床在冲压过程中的快速性及稳定性。
Taking the hydraulic control system of high speed punch as the object of study,dynamic performance of the hydraulic system is studied.The mathematical model of hydraulic control system is established and analyzed dynamically.The frequency and time domain characteristics of the hydraulic control system are analyzed by using Simulate software.The results show that the hydraulic control system of the high-speed punch is stable in fast stroke,stamping stroke and return stroke.But the speed response time of the high speed hydraulic press is too long and the overshoot is too large for fast stroke,stamping stroke and return stroke,which seriously affects rapidity and stability of the punch in stamping process.
作者
麦瑞缨
杨丽红
朱小明
Mai Ruiying;Yang Lihong;Zhu Xiaoming(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200082,China)
出处
《农业装备与车辆工程》
2018年第4期88-91,共4页
Agricultural Equipment & Vehicle Engineering
关键词
高速冲床
数模建立
动态分析
high-speed punching machine
establishment of mathematic models
dynamic analysis
