采煤机液压制动系统动态性能影响因素分析  

Analysis of Influential Factors of Dynamic Performance of Shearer Hydraulic Brake System

作　　者：李伟伟 贾跃虎[1] 张敬芳[1] 刘志奇[1] 郝尚清 

机构地区：[1]太原科技大学机械工程学院,太原030024 [2]太重煤机技术中心,太原030032

出　　处：《煤炭技术》2017年第12期224-226,共3页Coal Technology

基　　金：山西省煤基重点科技攻关项目(MJ2014-05);太原科技大学校博士启动基金项目(20122051)

摘　　要：以采煤机液压制动系统为研究对象,介绍了液压制动系统的组成和工作原理,建立了采煤机液压制动系统主要元件的数学模型,进行了基于AMEsim的采煤机液压制动系统动态性能分析。分析了制动器液压缸动态特性随制动器弹簧刚度、制动器弹簧预紧力、管路长度以及电磁换向阀结构参数变化的规律,为采煤机液压制动系统的性能优化设计提供了依据。Taking the hydraulic brake system of shearer as the research object, the composition and working principle of the hydraulic brake system was introduced, and the mathematical model of the main components of shearer hydraulic brake system was established. The AMEsim software is used to model and simulate the hydraulic brake system. The influence of the braking spring stiffness, braking spring preload, hydraulic line and the flow section area of the solenoid valve on the dynamic performance of brake hydraulic cylinder is analyzed,which provides the theoretical basis for the design and optimization of hydraulic system of the lifting machine.

关 键 词：采煤机 制动系统 动态性能 

分 类 号：TD421.6[矿业工程—矿山机电] TH137.7[机械工程—机械制造及自动化]