Conveyor for moving heavy dense objects

摘要

A conveyor system which is particularly suitable for moving large very heavy dense loads such as steel coils. The conveyor includes a stationary portion and a movable portion which is raised and moved forward to move the load forward. The movable portion is then lowered, so that the load is supported on the stationary portion, and moved backward to be in position for another movement of the load. The movable portion is supported on air bearings during the forward and return steps to reduce friction. The disclosed conveyor can be used for moving loads a relatively long distance, often over 1000 ft. (304.9 meters). Thus, for a practical device low friction operation is necessary. Adjustable guides are provided so that the movable load support can be accurately positioned with respect to the stationary load support. Air lifting units are provided for raising and lowering the movable load support. Hydraulic cylinders are provided for moving the movable load support back and forth. A turntable can be provided for receiving and transferring loads from the movable load support. The turntable is formed with a top portion which has passages which are complimentary with the end of the movable load support so that the movable load support can move into the turntable and transfer the load thereto. The load support surface of the turntable is supported on air bearings to permit easy rotation. A strong center stud is provided extending into the center of the turntable for keeping the turntable accurately aligned.