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偏心重块是粮食机械上常见的一种结构零件,其作用之一是利用偏心重块产生的离心惯性力,使筛体按需要的规律运动(例如振动筛、高速除稗筛、平筛中的甩铁):作用之二是平衡机械的不平衡惯性力,使机械平稳地工作(例如谷糙分离平面回转筛、小方筛中的平衡铁),为了充分发挥其作用,怎样选择偏心重块的形状和确定其几何参数呢?在生产实践中,偏心重块的几何形状应用最广泛的是扇形与弓形,下面从偏心重块惯性力、材料利用和起动性能等方面进行分析比较,供选择时参考。
Eccentric weight is a common structural parts of food machinery, one of its role is the use of eccentric centrifugal force generated by weight, so that the sieve body according to the law of movement (such as shale shaker, high-speed addition to barnyard grass screening, flat screen Of the iron rejection): The second role is to balance the unbalanced mechanical inertia, so that the smooth operation of the machine (such as Valley rough separation plane rotary sieve, square sieve balance iron), in order to give full play to its role, how to choose eccentric weight Block shape and determine its geometric parameters? In the production practice, the eccentric geometry of the most widely used geometry is the sector and bow, the following inertia force from the eccentric weight, material utilization and starting performance analysis and comparison for Selection reference.