为了研究目前国内最大吨位(斗容量15 m3、机质量260 t)的矿用正铲液压挖掘机工作特性,首先在小型挖掘机上对采用的机械系统动力学与液压系统联合仿真方法进行验证,通过对比试验与联合仿真结果,确认了联合仿真研究方法能够较准确地模拟挖掘机的真实工作环境。在此基础上,采用ADAMS和AMES im软件,对斗容15 m3矿用挖掘机工作装置与液压系统进行联合仿真研究,通过仿真获得了挖掘机整个挖掘过程中工作部件对各个转动轴的转动惯量,计算出各个液压缸的位移曲线、速度曲线和压力变化曲线以及铲斗齿尖挖掘轨迹。
In order to study the working characteristics of mining face-shovel hydraulic excavator with bucket capacity of 15 m3 and machine weight of 260 t,which is currently the largest tonnage of hydraulic excavator,co-simulation method of the dynamics of mechanical systems and hydraulic systems to the small excavator was authenticated.Then,by comparing the results of test and co-simulation,it was confirmed that co-simulation method could accurately simulate the practical working environment of excavator.On the base of before-mentioned research,mechanical devices and hydraulic systems of mining hydraulic excavator which bucket capacity is 15 m3 were carried on with the help of ADAMS and AMESim software.Through simulation the rotation inertias of various parts of working mechanism to its rotation axis during working process were calculated.The displacement curves,velocity curves,force curves of each hydraulic cylinder and the excavating trajectory of bucket tooth crest could be obtained through co-simulation.