Torque control system dependent on wheel load in a drive...

Details Torque control system dependent on wheel load in a drive... Torque control system dependent on wheel load in a drive...

B - Operations, Transporting

66

C

B66C 9/14 (2006.01) B60T 8/00 (2006.01) B60T 8/175 (2006.01)

Patent

CA 2434406

The invention relates to a torque control system which is dependent on wheel load in a drive mechanism for crane crabs, preferably machinery house crabs of container cranes, consisting of a drive mechanism, crab wheels, roadways and transfer elements. Said control system is characterised in that the wheel load of each wheel is determined and the drive torque for the wheel concerned is adjusted in such a way that there is sufficient static friction between the wheel and its running thread. The inventive solution has the advantage that there is always sufficient torque without slipping on the driven wheel, even in the case of oscillating loads and low friction values between the wheels of the crab and the rails.

L'invention concerne une commande de couple dépendant de la charge de roue d'un système d'entraînement pour treuils roulants de grues, de préférence des treuils roulants de bâtiments des machines de grues de conteneurs, comprenant un système d'entraînement, des roues de treuil roulant, des voies de circulation et des éléments de transfert. Cette commande se caractérise en ce que la charge de roue de chaque roue est déterminée et en ce que le couple d'entraînement pour la roue concernée est ajusté de manière qu'il y ait un frottement par adhérence suffisant entre la roue et sa surface de roulement. La solution proposée selon l'invention présente comme avantage d'avoir toujours un couple suffisant sans patinage sur la roue entraînée, y compris en cas de charges oscillantes et de faibles valeurs de frottement entre les roues du treuil roulant et le rail.

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