清筛道床是线路经常维修的作业之一,也是当前我国实现养路机械化的关键性作业,其目的是恢复道床的弹性和排水性能。完成这一作业的机器称为清筛机,在道床清筛机上常采用偏心振动筛。这种筛子在选矿、冶金、筑路、建筑、化工等工业部门中也得到广泛的应用。这是因为它具有以下优点:有较高的筛分效率和清除物料堵塞筛孔的能力;构造 Qing Road clean track bed is one of the regular maintenance of the line of operations, but also the current mechanization of road maintenance in our country’s key operations, the purpose is to restore the flexibility and drainage of the ballast. The machine for this job is called a cleaning machine, and an eccentric shaker is often used on the ballast cleaning machine. This sieve in the mineral processing, metallurgy, road construction, chemical and other industrial sectors have also been widely used. This is because it has the following advantages: a higher screening efficiency and the ability to clear the material to block the mesh; construction