A method for securing an angular position of a crane jib displaceable in lifting and in lowering by a winch integrating a motor driving a drum on which is wound a rope and secured to a platen provided with arcuate oblong locking holes, the method including measuring a speed parameter representative of an angular speed of the jib, controlling the motor to displace the jib with a limitation of the speed parameter to a first maximum value and a limitation of a motor torque to a first limit value, until reaching an angular position in which a lock is aligned with and locked into the locking hole, and controlling the motor to displace the jib in lowering with a limitation of the speed parameter to a second maximum value and a limitation of the motor torque to a second limit value, until the speed parameter is null for a predetermined time period to stop the motor.
PROCÉDÉ DE SÉCURISATION D'UNE GRUE À FLÈCHE INCLINABLE POUR SÉCURISER UNE POSITION ANGULAIRE D'UNE FLÈCHE INCLINABLE
METHOD FOR SECURING A TILTING BOOM CRANE FOR SECURING AN ANGULAR POSITION OF A TILTING BOOM
VERFAHREN ZUR SICHERUNG EINES KIPPBAREN AUSLEGERKRANS, UM DIE WINKELPOSITION DES KIPPBAREN AUSLEGERS ABZUSICHERN
2024-08-07
Patent
Electronic Resource
French
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