ROLLER CHAIN WEAR DETECTING METHOD AND DEVICE

• Main Author: MINAMI HIDEAKI
• Format: Patent
• Language: English
• Published: 13.11.1998
• Edition: 6
• Subjects: BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES; BLASTING; CALCULATING; CHAINS; COMPUTING; COUNTING; ENGINEERING ELEMENTS AND UNITS; FITTINGS PREDOMINANTLY USED THEREFOR; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LIGHTING; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MECHANICAL ENGINEERING; PHYSICS; TESTING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a roller chain wear detecting method, capable of accurately detecting the wear of a roller chain regardless of fluctuation of load to the roller chain and the polygonal movement of the roller chain, and a device to be used in executing the same. SOLUTION: A detecting portion 53 calculates the center coordinates of a roller image and the center coordinates P of a pin image from data given from a data extracting portion 52, and determines the deviation between both of the center coordinates. The detecting portion 53 compares a plurality of deviations which are calculated before the current unrecognized information is given since the previous unrecognized information has been given, and extracts the greatest value of deviation, thereby calculating the wear MPB of the outer peripheral surface of a pin 73 and the inner peripheral surface of a bush 82 and the wear MBR of the outer peripheral surface of the bush 82 and the inner peripheral surface of a roller 85.