纵轴式掘进机工作机构机械-液压耦合建模与仿真  

Modeling and simulation of mechanical-hydraulic coupling of working mechanism for longitudinal roadheaders

作　　者：魏晓华[1] 李济洋[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）》2013年第2期229-232,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(51104082)

摘　　要：针对掘进机掘进过程中,选择和调整掘进参数以适应不均衡的地质环境问题,依据截割机构、升降机构和回转机构之间工作参数的关系,将液压缸运动的非线性动态特性考虑在内,建立了机械-液压耦合的动力学模型,并应用Matlab软件仿真了截割最为恶劣状况下各机构的振动情况.研究结果表明:升降油缸的振动情况较回转油缸严重,且回转半径对回转台振动影响较大.In recent years longitudinal roadheaders are gradually used beyond the mining industry. It is very important to know how to choose right the working parameters and adjust the system on-line to adapt to the non-uniform geological conditions in tunneling. A mechanical-hydraulic coupling dynamic model has been developed based on the working parameters＇ relationship among the cutting, lift and turning mechanism as well as the nonlinearity of hydraulic cylinder motion. Furthermore, a simulation on the vibration under the worst working conditions has been conducted using MATLAB Software. The results show that the vibration of lift cylinders is greater than turning cylinders and the turning radius has a great impact on the vibration of turning table. In addition, it is the first time for the mechanical-hydraulic coupling model to be applied in the dynamic analysis of roadheaders.

关 键 词：掘进机 工作机构 回转台 液压缸 动力学建模 液压系统 机械-液压耦合 数值仿真 

分 类 号：TD421.5[矿业工程—矿山机电]