Based on the discrete element theory,a simulation model of double-drum coal mining machine with medium-thickness coal seam was established by combining the particle displacement mode and the contact structure between particles,and the relationship between factors such as drum rotational speed,steering,hauling speed,and blade helix angle of lift and the loading efficiency of coal mining machine was obtained through the simulation,and the optimal combination of factors was obtained through the analysis of the influencing laws and reasons,which lays a foundation for the improvement and research on the loading efficiency of the double-drum coal mining machine in the future.It lays the foundation for future improvement of coal loading efficiency of double-drum coal mining machine.
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