SYSTEM AND METHOD FOR DETECTING BELT-PULLEY DISENGAGEMENT

Abstract: a system and method for detecting disengagement of a modular articulating conveyor belt from a toothed pulley with a laser beam. a laser transmitter and a laser detector are positioned at opposite sides of the modular conveyor belt wrapped around a toothed pulley. the laser beam is directed from the laser transmitter to the laser detector along a line that is intermittently intersected by radially outer structure on the belt as it advances fully engaged with the pulley. when the belt stretches with wear or when debris is trapped between the belt and the pulley, the belt starts to ride higher on the pulley in position to block the laser beam for longer time periods indicating disengagement of the belt from the pulley.

Inventor(s): Yorrick Mulder, Sven-Erik Haitjema-Burrough

CPC Classification: B65G43/02 (detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating)

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