篦冷机液压负载敏感比例速度控制系统建模  

Modeling of Hydraulic Load-reacting Proportional Regulating Speed Control System in Comb Cooler

作　　者：高凤阳[1] 王君帅[1] 沈文博[2] 张敏[3] 

机构地区：[1]沈阳建筑大学交通与机械工程学院,辽宁沈阳110168 [2]沈阳炮兵学院自动火炮指挥系,辽宁沈阳110162 [3]沈阳矿山设计研究院,辽宁沈阳110042

出　　处：《沈阳建筑大学学报（自然科学版）》2007年第3期509-512,517,共5页Journal of Shenyang Jianzhu University：Natural Science

基　　金：建设部攻关项目

摘　　要：目的建立篦冷机篦床液压负载敏感比例速度控制系统的数学模型.方法在分析篦冷机篦床液压负载敏感比例速度控制系统的各个部分组成特点和工作原理的基础上,利用液压伺服控制和液压比例控制的原理,对系统的各个部分分别建立微分方程,在一定的条件下对方程进行了简化,经拉氏变换后得到系统传递函数、方框图,对典型工况下模拟仿真.结果得到符合实际的篦冷机篦床液压负载敏感比例速度控制系统的数学模型.结论篦冷机篦床液压负载敏感比例速度控制系统数学模型由4个部分组成,每一部分有三类方程组:流量方程、连续方程以及力平衡方程.系统方框图与通常的液压伺服系统相比多出了一个反馈环.模拟仿真结果表明系统数学模型符合实际.In this paper, the mathematic model of hydraulic load-reacting proportional Regulating Speed Control System in Comb Cooler is made Out based on the analyses of every parts constitute and work principle, combining with hydraulic servo control method and hydraulic proportional control method, a mathematic model of the proportional speed control system is worked out and is simplified under some special condition. This model can be applied in production. This model includes four parts, every part of model has three equations. Compared with the hydraulic servo control system of this model, compared to the usual hydraulic servo control system one more reactivity circle is added on. This new part can be made the out-put of the system to reach the require mens of the control.

关 键 词：篦冷机 液压传动 负载敏感变量 比例控制 

分 类 号：TH137[机械工程—机械制造及自动化]