The drum is the working mechanism of the coal shearer, and the coal loading performance of the drum is very important for the efficient and safe production of coal mine. In order to study the coal loading performance of the shearer drum, a discrete element model of coupling the drum and coal wall was established by combining the results of the coal property determination and the discrete element method. The movement of coal particles and the mass distribution in different areas were obtained, and the coal particle velocity and coal loading rate were analyzed under the conditions of different helix angles, rotation speeds, traction speeds and cutting depths. The results show that with the increase of helix angle, the coal loading first increases and then decreases; with the increase of cutting depth and traction speed, the coal loading rate decreases; the increase of rotation speed can improve the coal loading performance of drum to a certain extent. The research results show that the discrete element numerical simulation can accurately reflect the coal loading process of the shearer drum, which provides a more convenient, fast and low-cost method for the structural design of shearer drum and the improvement of coal loading performance.

转鼓是采煤机的工作机构，转鼓的载煤性能对煤矿的安全高效生产至关重要。为了研究采煤机转鼓的装煤性能，结合煤性测定结果和离散元方法，建立了转鼓与煤壁耦合的离散元模型。得到了煤粉在不同区域的运动和质量分布，并在不同螺旋角，旋转速度，牵引速度和切削深度的条件下分析了煤粉的速度和装煤率。结果表明，随着螺旋角的增大，煤的负荷先增大后减小。随着切割深度和牵引速度的增加，装煤率降低；转速的提高可以在一定程度上提高转鼓的装煤性能。研究结果表明，离散元数值模拟可以准确反映采煤机滚筒的装煤过程，为采煤机滚筒的结构设计和提高装煤性能提供了更加方便，快捷，低成本的方法。