Method for controlling a crane actuator

Details Method for controlling a crane actuator Method for controlling a crane actuator

B - Operations, Transporting

66

C

B66C 13/18 (2006.01) B66C 13/20 (2006.01)

Patent

CA 2582842

The invention relates to a method and an apparatus for controlling an actuator (7, 8) of a crane by control means (10) in a situation where the lifting power of the actuator (7, 8) of the crane is increased temporarily by an auxiliary valve arrangement (11). In the invention, control properties of the actuator (7, 8) are changed when the temporarily increased lifting power is applied to limit the speed of the actuator (7, 8).

La présente invention concerne un appareil et une méthode de contrôle du vérin (7, 8) d'une grue par des moyens de commande (10) dans une situation où la puissance de levage du vérin (7, 8) de la grue est augmentée temporairement par un dispositif de distributeur auxiliaire (11). Dans cette invention, les propriétés de commande du vérin (7, 8) sont modifiées lorsque la puissance de levage temporairement accrue est appliquée de façon à limiter la vitesse du vérin (7, 8).

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