Theoretical method of matching between traction power and cutting power of shearer

The reasonable matching of cutting power and traction power has a direct effect on the traction performance,the production capacity,the ratio of installed power,and productivity.This paper describes the development of the mathematical model related to cutting and traction power according to the relationship between cutting power and traction power of shearer on the one hand and overall parameters and seam conditions on the other hand.The paper provides the method of calculating the parameters of traction power,based on the given cutting power of shearer,a quantitative numerical simulation,combined with the concrete shearer type,and the curves of ratios of cutting power and traction power varying with different working parameters.The numerical simulation shows that the values reflect the law varying with traction speeds and coal seam dip angles,the law of traction speeds varying with coal seam dip angles,and the effective work area of traction speeds.This method is of theoretical and practical for type selection,fair use of shearer and fair matching design of the parameters of traction power and so on.