锥形螺杆输送机挤压力的理论分析盂庆兰译权彪校（东北农业大学）（黑龙江省农业机械工程科学研究院）１引言转动的螺杆用来输送和压缩颗粒的及纤维的物料．通常是采用普通螺杆，即螺杆的外径为常数，且等于其螺距．然而，用这样的螺杆未必能在６～７个螺距长度上达到很高... Conical Screw Conveyer Compression Analysis of a theoretical analysis Yu Qinglan translation right Biao School (Northeast Agricultural University) (Heilongjiang Agricultural Machinery Academy of Engineering) 1 Introduction Rotary screw used to transport and compress the granular and fibrous materials. Usually use ordinary screw, that is the outer diameter of the screw is constant, and equal to its pitch. However, using such a screw may not be as high as 6 to 7 pitch lengths ...