采煤机滚筒液压调高比例控制系统的数值模拟  

Numerical simulation hydraulic pressure height adjustment proportion control system of shearer's drum

作　　者：刘春生[1] 陈金国[1] 张艳军[1] 

机构地区：[1]黑龙江科技学院机械工程学院,哈尔滨150027

出　　处：《黑龙江科技学院学报》2011年第5期395-399,共5页Journal of Heilongjiang Institute of Science and Technology

基　　金：教育部科学技术研究重点资助项目(206045);国家自然科学基金资助项目(51074068);黑龙江省研究生创新科研资金项目(YJSX2011-166HLJ)

摘　　要：为实现记忆截割滚筒调高曲线的平滑性及减少调高系统的振荡,建立了电液比例方向阀调高系统与电磁换向阀调高系统的传递函数及其控制器模型,采用Matlab/Simulink与Automa-tion Studio联合仿真的方法,分析其系统工作的压力、流量及加速度特性。仿真结果表明:电液比例方向阀控制液压缸调高系统的压力、流量及加速度曲线振荡比电磁换向阀控制的小,明显地减少了滚筒截割时调高启动冲击,提高了采煤机工作的可靠性,为采煤滚筒调高控制系统的设计提供了参考依据。Aimed at realizing the gliding property of cutting memory drum height adjusting curves and the reducing the shaking of height adjusting system,this paper discusses the development of the transfer functions and controller models of electro-hydraulic proportional directional valve and solenoid directional control valve height adjusting system and the analysis of the characteristics of its system working pressure、flow and acceleration using method of co-simulation of Matlab/Simulink and Automation Studio.The simulation results show that height-adjusting system controlled by electro-hydraulic proportional directional valve yields smaller curves shaking of pressure,flow,and acceleration than that controlled by solenoid directional control valve,obviously reducing the height adjusting start impact of drum cutting and improving shearer working reliability,which serves for the design of height adjusting control system of shear drum.

关 键 词：采煤机 滚筒 调高系统 电液比例控制 AutomationStudio仿真 

分 类 号：TD421.61[矿业工程—矿山机电]