TRAILER CONVEYOR ADAPTED FOR KIDNEY SHAPED STOCKPILING

摘要

A good conveyor operator will initially dump material from the lowest height possible. As the stockpile is created the operator will incrementally raise the conveyor, keeping the discharge end of the conveyor just above the stockpile. Minimizing the height of the free fall of the material from the discharge end of the conveyor minimizes the creation of dust and produces a stockpile having a much more uniform material size distribution. When a larger kidney shaped stockpile is desired the conveyor is provided with wheels which may be laterally pivoted 90.degree. from a longitudinal travelling position to a radial position wherein the conveyor may be swung around a pivot axis. For safe operation and to efficiently change conveyor height without laterally pivoting the wheels, the conveyor must have a frame which ensures the spacing between the wheels and the pivot axis is generally invariant so that the wheels do not move laterally when the conveyor is elevated.