新型压力反馈式液压冲击器系统的动态仿真研究  

Study on the dynamic simulation system of the new hydraulic impactor with pressure feedback

作　　者：徐必勇[1] 叶兴海[1] 罗铭[1] 

机构地区：[1]安徽工业大学机械工程学院,安徽马鞍山243002

出　　处：《矿山机械》2009年第9期13-17,共5页Mining & Processing Equipment

摘　　要：提出了一种基于压力反馈的新型液压冲击器控制方案。该方案通过调整溢流阀的设定压力来控制冲击器的行程,从而具有无级调频调能的特性.建立了该冲击器的数学模型和仿真模型,并在仿真模型中充分考虑了溢流阀特性、高压油管及进出油容腔对冲击器性能的影响,系统地研究了主要工作参数对其工作性能的影响,从中获得了一些有关该液压冲击器的运动规律,为设计制造新一代液压冲击器产品提供理论依据。A new control plan based on pressure feedback theory is proposed in this paper. For adjusting the pressure of overflow valve to control the stroke of the hydraulic impactor, it has the ability of infinite energy and frequency variation. It also establishes the mathematical model and the simulation model of this impactor, considers fully the influence of overflow valve characteristics, the high-pressure oil pipe and the oil capacity on the impactor, researches on the effects of the main parameters on its performances, and obtains some its related dynamic regulations, that offers the manufacture of the new hydraulic impactor the theoretie basis.

关 键 词：溢流阀 压力反馈 液压冲击器 无级调频调能 动态仿真 

分 类 号：TH137[机械工程—机械制造及自动化]