振动式掘进机截割机构工况参数的建模与仿真  

Modeling and simulation of work condition parameters of cutting mechanism for vibration roadheader

作　　者：李晓豁[1] 左胜甲[1] 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2008年第4期579-582,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(59774033);国家安全生产监督管理局;国家煤矿安全监察局安全生产科技发展指导性计划项目(05-082);辽宁省教育厅创新团队计划项目(2007T068);大型工矿装备实验研究中心(辽宁省高校重点实验室)开放基金资助项目(07-61)

摘　　要：对振动式掘进机截割机构传动系统进行了分析,假设:传动构件为刚体,电动机转速恒定,受力为理想约束,系统的连接为理想连接。在此基础上,用lagrange方程建立了一种复合传动的振动式掘进机截割机构的数学模型,使用matlb软件进行求解,得出了这种掘进机截割头的工况参数(转速及其输出扭矩)的及其影响因素间的关系曲线。分析得出:当偏心锤质量改变后,截割头输出扭矩的不稳定响应时间和其输出振幅都随之变化,偏心锤的质量增大1kg,振动最大振幅将增加150 N.m。这为改进振动式掘进机截割机构、提高其工作性能提供了理论依据。Transmission system of cutting mechanism on a vibration roadheader is analyzed. Suppose： transmission components are rigid bodies, motor speed is constant, force is ideal bound, connecting of system is ideal link. On this basis, a mathematical model of a cutting mechanism on a vibration roadheader with a compound transmission is established by using Lagrange equation in the paper, and a solution of the model is known by using Matlab software. The relationship curve between working condition parameters（rotating speed, output torque） of the cutting head and factors is found. Analysis shows that： when the eccentric hammer quality changes, response time of the output torque. of the cutting head and its output amplitude change accordingly. When the quality of the eccentric hammer increases by 1 kg, vibration amplitude will increase 150 N · m. This lay a theoretical basis for improving the vibration cutting mechanism of roaderheader and raising its working performance.

关 键 词：掘进机 动截割 振动器 系统运动学 

分 类 号：TD421.5[矿业工程—矿山机电] U455.3[建筑科学—桥梁与隧道工程]