辊道是利用圆筒式的辊子之转动来输送轧件的运输设备。它把轧制生产过程的各个工序互相联结起来。实现操作机械化，大大改善劳动条件，提高生产效率，为实现自动化操作提供条件。
Theroller is the transport equipment that uses the rotation of thecylindrical roller to transport the rolled piece. It joins each ofthe processes in the rolling process. Mechanization of operation isrealized， labor conditions are greatly improved， productionefficiency is improved， and conditions for realizing automaticoperation are provided.
空转辊道——通常借助轧件重力来推动，辊道之平面多做成与水平面之间有斜度，辊道，以利用重力作用，又称为重力辊道。一般小型轧机的辊道，特别是升降台上的辊道，圣霖国际辊道，尽可采用重力辊道而不必采用转动辊道。有些工作辊道的延长部分也有采用重力辊道的。
The idleroller table is usually driven by the gravity of the rolled piece，so the plane of the roller table is made of a gradient between thehorizontal plane and the horizontal plane，辊道生产商， so as to make useof the gravity effect， so it is also called the gravity rollertable. The rolling mill of a small mill， especially the rollertable on the lift table， can use the gravity roller without usingthe rotating roller table. Some of the lengthening parts of theworking rollers also use the gravitational roller.
双层滚筒输送机同样也具备了滚筒的优点。具有输送量大，维护方便等原因。应用于各行业的成品包装箱、周转箱等输送。要求被输送物的底部是平整的。每三只滚筒要与底部接触。
Double drum conveyor also has theadvantages of drum. It has a large amount of transportation，convenient maintenance and so on. It is applied to thetransportation of finished packing boxes and turnover boxes invarious industries. The bottom of the conveyer is required to beflat. And every three rollers should be in contact with thebottom.
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