| 摘要 |
In one aspect, an elevating conveyor includes a vertical elevating member having a helical flight and a tubular barrel surrounding the elevating member. The tubular barrel is rotatable relative to the elevating member and is directed toward a centered position with respect to the elevating member by a centering assembly. In one embodiment, the centering assembly includes a plurality of rollers spaced circumferentially around the barrel and being movable in directions toward or away from the barrel. In another aspect, the conveyor has a modular construction that facilitates storage, transportation, and assembly of the conveyor in various heights. The elevating conveyor may further include a dust tube surrounding the barrel and defining a chamber therebetween. An end cap extends over and is spaced from the second end of the dust tube to define a gap through which dust generated by operation of the conveyor is drawn into the chamber.
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