本文研究了输送块状和散粒状物料的螺旋输送机螺旋面的展开计算。直的或锥形螺旋面的胚件是由两个同心圆弧面组成的环形平面(图1)。一圈螺旋线的外周长为L,内周长l,半径R_1,r_1,缺口中心角α。从图2可知,螺距为S,中心到内外 In this paper, the calculation of the helix of screw conveyors conveying massive and granular materials is studied. A straight or tapered helical blank is a toroidal plane consisting of two concentric arcuate surfaces (Figure 1). The outer circumference of a circle of spiral L, inner circumference l, radius R_1, r_1, notch center angle α. As can be seen from Figure 2, the pitch is S, the center to the inside and outside