METHOD AND SYSTEM FOR CONTINUOUS CONDITION MONITORING OF HOIST CHAINS
In order to provide an improved method and system for continuous condition monitoring of a hoist chain (3) implementation of the following steps is suggested: - detecting with at least one sensor (9a, 9b) a presence/absence of chain links (3a, 3a', 3a'', 3a''', 3a'...
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| creator | KEROVUORI, Juhani NEHETE, Rajesh JOKINIEMI, Kimi BERTULA, Ari PATIL, Kiran PATTAR, Prathamesh RAKSHE, Amit ATTARDE, Kiran PERSICO, Giuliano MELLANEN, Roope |
| description | In order to provide an improved method and system for continuous condition monitoring of a hoist chain (3) implementation of the following steps is suggested: - detecting with at least one sensor (9a, 9b) a presence/absence of chain links (3a, 3a', 3a'', 3a''', 3a''', 3a''') and/or of teeth (7a, 7a', 7a'') of a chain sprocket (7), - determining with an evaluation unit (11), using a signal obtained from the sensor(s) (9a, 9b), time intervals (Ton1, Toff2, Ton3, Toff4) reflecting the presence/absence, and - determining with the evaluation unit (11) sums (SUM1, SUM2) of the time intervals, - determining with the evaluation unit (11) a chain speed, and - comparing with the evaluation unit (11) the first sum (SUM1) with the second sum (SUM2) in order to determine an elongation of the hoist chain (3), wherein each time interval was determined at the same chain speed. |
| format | Patent |
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| language | eng ; fre ; ger |
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| subjects | CAPSTANS HAULING HOISTING HOISTS LIFTING PERFORMING OPERATIONS TACKLES, e.g. PULLEY BLOCKS TRANSPORTING WINCHES |
| title | METHOD AND SYSTEM FOR CONTINUOUS CONDITION MONITORING OF HOIST CHAINS |
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