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本文首先就分层卸粮扫仓螺旋输送器的工作原理进行探讨,建立螺旋的各横截面坐标、导程、外径与自转转速、公转角速度、卸粮层厚度的函数关系,并推导出等导程螺旋轮廓曲线二次方程。鉴于在实践中等导程螺旋应用于大直径圆仓卸粮设计时外湍叶片高度偏小而导程偏大的缺点,又提出螺旋导程随各横截面坐标及其外径变化的线性关系式,从而获得变导程螺旋轮廓曲线高次方程。这就在提高和改善此种螺旋输送器的技术性能方面更趋完善。文末附有设计程序及参数选择,仅供参考。
In this paper, the working principle of stratified unloading grain-sweeping screw conveyor is discussed first, and the function of each cross-sectional coordinate, lead, outer diameter and rotation speed, revolution angular velocity and unloading layer thickness is established. Lead screw contour curve quadratic equation In view of the shortcomings of the extra lead blades being too small and the lead being too large in the practical application of the lead screw in the design of large-diameter silos for unloading grains, the linear relationship between the screw lead and each cross-sectional coordinate and the change of its outer diameter , So as to obtain high-order equation of variable-lead helix profile. This is perfect for improving and improving the technical performance of such screw conveyors. At the end of the text attached with the design process and parameter selection, for reference purposes only.