中国古代的高转筒车和提水的翻车，是现代斗式提升机和刮板输送机的雏形；17世纪中，开始应用架空索道输送散状物料；19世纪中叶，各种现代结构的输送机相继出现。
本文介绍了重力辊子输送机、动力辊子输送机和其它辊道输送机的特点及选型时应注意的问题。
This article introduces the characteristics of gravity roller conveyor, power roller conveyor and other types of conveyors and points out problems that need our attention in selecting a conveyor.
重力式辊筒输送机由于其自身的特性，必须在辊道中设置制动辊。
Due to its speciality, the gravitational roller conveyor must be equipped with brake rollers in its table roller.
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