等切削厚度的镐型齿旋转截割煤岩比能耗模型  

Model of energy consumption based on conical pick rotary cutting coal rock for cutting thickness

作　　者：刘春生[1] 任春平[1] 王磊[1] 

机构地区：[1]黑龙江科技大学机械工程学院,哈尔滨150022

出　　处：《黑龙江科技大学学报》2016年第1期53-57,共5页Journal of Heilongjiang University of Science And Technology

基　　金：国家自然科学基金项目(51274091)

摘　　要：为探明截割转速与牵引速度对比能耗影响的规律,根据旋转截割实验载荷谱,建立了截齿平面和旋转截割比能耗理论模型;采用离散统计算法,给出了旋转截割比能耗与截割转速的实验计算模型。结果表明:平面和旋转截割比能耗理论模型的数学描述具有一致性,切削厚度不变,旋转截割比能耗随截割转速同步增大,单位转速的截割比能耗递增率为0.73%。旋转截割比能耗理论计算的修正模型,反映出了与切削厚度、截割转速以及煤岩截割特性的关系,使截割比能耗的评价更接近实际和截割参数优化更为有效。This paper introduces a theoretical and experimental model designed to explore the law underlying the effect of drum rotational speed and traction speed on specific energy consumption. The research entails developing theoretical models on plane cutting and rotary cutting specific energy consumption according to the rotary cutting experimental load spectrum; applying the discrete statistical algorithm by which to produce the calculation mode of the rotary cutting specific energy consumption and the cutting speed. The results show that theoretical model on plane and rotary cutting specific energy consumption offers consistent mathematical description; rotary cutting specific energy consumption shows a synchronous increase due to increased cutting speed when there is no change in cutting thickness; the increase rate is0. 73% for cutting specific energy consumption of unit speed. The correction model on theoretical calculation of rotary cutting specific energy consumption reflect features of the relationship among the cutting thickness,cutting cutting speed and coal and rock cutting,enabling a closer-to-reality evaluation of the cutting specific energy consumption and a more effective optimization of cutting parameters.

关 键 词：采煤机 镐型齿 截割转速 比能耗 盒维数 

分 类 号：TD421.6[矿业工程—矿山机电]