我国极薄煤层的开采机械化问题,比较突出,主要设备为采煤机。文中对极薄煤层用爬底板端面截割采煤机小直径滚筒的装煤效率,通过参数分析及一系列的实验研究,根据其有关参数对装煤量、装煤效率及比能耗的相应有利关系,提出小直径滚筒设计应该是:适宜的滚筒和筒毂直径;2～3头的光滑叶片且升角在30～35°;转速在120～130r/min的逆向旋转滚筒以及与转速相匹配的1.2～2m/min的牵引速度。 Mining mechanization of very thin seam in our country is more prominent, the main equipment is shearer. In this paper, the coal loading efficiency of the small diameter drum of coal winning machine is cut by crawling floor end face of ultrathin seam. Through the analysis of parameters and a series of experimental studies, according to the relevant parameters of coal loading, coal charging efficiency and specific energy consumption Advantageously, it is proposed that the design of a small diameter drum should be: a suitable diameter of the drum and the hub; smooth blades of 2 to 3 heads with a lifting angle of 30 to 35 degrees; a counter rotating drum of 120 to 130 rpm, Matching 1.2 ~ 2m / min traction speed.