通过对采煤机滚筒装煤能力分析,选取影响滚筒装煤性能的关键因素。基于相似理论设计微缩采煤机沙盘模型进行装煤效果对比试验,对滚筒转速、牵引速度与轮毂外形角度3个不同条件下的采煤机装煤效果进行实验,采用正交设计方法获得实验数据。利用偏最小二乘回归方法PLSR在模型参数辨识中的优势,辨识出装煤效果模型。仿真结果表明该方法不但可以准确地建立适用于不同条件下的滚筒装煤效果评估模型,同时具有实验简单,次数少,模型预测能力强,模型参数物理意义明显等特点。 By analyzing the drum coal loading capacity of coal shearer, the key factors influencing drum coal loading performance are selected. Based on the similarity theory, a miniature shearer sand table model was designed to carry out coal loading experiment. Coal loading efficiency was tested under three different conditions including drum speed, traction speed and wheel hub angle. The orthogonal design method was used to obtain the experimental data . Using partial least squares regression PLSR in the model parameter identification advantages, identify the coal loading effect model. The simulation results show that this method not only can accurately establish the drum loading evaluation model which is suitable for different conditions, but also has the characteristics of simple experiment, less number of times, strong predictive ability of model and obvious physical meaning of model parameters.