Automatic system for guiding, retaining and tightening steel...

Details Automatic system for guiding, retaining and tightening steel... Automatic system for guiding, retaining and tightening steel...

B - Operations, Transporting

66

D

B66D 5/26 (2006.01) B66C 1/10 (2006.01) B66C 1/66 (2006.01)

Patent

CA 2645051

The fastenings of steel cables for loading containers are subjected to high degrees of stress, resulting in the use of robust screw-type jaws. The systems currently installed on such cranes for fixing cables are fixed screw-type jaws. This is a much more versatile and flexible system that is based on a wedge mechanism that allows automatic and instantaneous (remotely controlled) actuation. The assembly includes the sliding clamps, actuation of said clamps, necessary additional guides and a tensioning device for adjustment of the cables. This solution makes it possible: to carry out the cable-change operation with the boom raised, thus allowing manoeuvring of the vessels and operation of nearby cranes; to reduce cable-replacement times; and to use the anchoring element (clamps) + tensioning device as a mechanism for adjusting the length of the branches. It is possible instantaneously to correct possible spreader misalignments.automatic system for guiding, retaining and adjusting cablesautomatic system for guiding, retaining and adjusting cables

Les points d'arrimage des câbles en acier pour le chargement de conteneurs sont soumis à de très fortes tensions, raison pour laquelle on utilise des étriers robustes vissés. Les systèmes actuellement utilisés dans ce type de grue pour la fixation de câbles sont constitués d'étriers vissés fixes. L'invention concerne un système sensiblement plus polyvalent et flexible fondé sur un mécanisme de coins qui permet un actionnement automatique et instantané (commandé à distance). L'ensemble comprend des pinces coulissantes, un mécanisme d'actionnement des pinces, des éléments de guidage supplémentaires nécessaires et un élément de tension pour l'ajustement des câbles. Cette solution permet: de réaliser l'opération de changement de câbles avec la flèche hissée, permettant ainsi aux navires de manoeuvrer et aux grues contiguës de fonctionner; de réduire les temps de substitution des câbles; d'utiliser l'élément d'ancrage (pinces) + élément de tension comme mécanisme d'ajustement de la longueurs des branches. L'invention permet de corriger instantanément les éventuels désalignements du palonnier.

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