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本文为带式输送机选用最小过渡段长度和过渡段范围内托辊几何学提供一些实用公式。本文研究了任何形式的三托辊输送机过渡段,其滚筒可以(a)安装在和胶带底边的同一个水平面上;(b)装在高于胶带底边的平面上,以便使胶带边缘和中心部位的应力相等。其理论依据是:在过渡段内具有低张力区和高张力区,胶带进入过渡段前的平均应力等于过渡段内的平均张力。给定最小过渡段长度,作为过渡段内托辊几何形状、胶带弹性模量和胶带低张力与高张力的函数。规定了高张力和低张力极限作为胶带极限强度的函数;胶带弹性模量作为胶带极限强度的函数。简化后的公式,可以根据胶带张力绘出过渡段长度的曲线图。
This article provides some practical formulas for selecting the minimum transition length of the belt conveyor and the roller geometry in the transition section. This paper examines any type of three-roller conveyor transition with the drum (a) mounted on the same horizontal surface as the bottom edge of the tape; (b) mounted on a flat surface above the bottom edge of the tape so that the tape edge And the central part of the stress equal. The theoretical basis is: in the transitional section has a low tension zone and high tension zone, the average stress before the tape into the transition section is equal to the average tension within the transition section. Given the minimum transition length, as a function of idler geometry, tape modulus of elasticity, and low and high tension in the transition section. The high and low tension limits are specified as a function of the ultimate strength of the tape; the tape elastic modulus is used as a function of the ultimate strength of the tape. A simplified formula that plots the transition length based on the tape tension.