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Three drums with different helical angles(15°,20°,and 25°) were developed to investigate improved loading performance of the shearer drum.Nine trials were performed at different drum rotation speeds(80,100,and 120 r/min) and different haulage speeds(1.5,2.0,and 2.5 m/min) in an orthogonal test design.Loaded coal quantity and cutting power of the drum were the responses measured under the different conditions.The effect of the parameters was determined by means of the extreme difference method.The significance of the effects was determined by analysis of variance.The results indicate that the effect from changes in the helical vane on loading performance of the drum is the largest in magnitude.The haulage speed has the least affect on loading performance.The helical angle has the least affect on cutting power of the drum.Haulage speed has the largest affect on the cutting power of the drum.
Three drums with different helical angles (15 °, 20 °, and 25 °) were developed to investigate improved loading performance of the shearer drum. Negative cases were performed at different drum rotation speeds (80,100, and 120 r / min) and different haulage speeds (1.5, 2.0, and 2.5 m / min) in an orthogonal test design. Loaded coal quantity and cutting power of the drum were the response measured under the different conditions. The effect of the parameters was determined by means of the extreme difference method . The significance of the effects was determined by analysis of variance. The results indicate that the effect from changes in the helical vane on loading performance of the drum is the largest in magnitude. The haulage speed has the least affect on loading performance. The helical angle has the least affect on cutting power of the drum. Haulage speed has the largest affect on the cutting power of the drum.