DEVICE FOR AXIALLY RETAINING MOVABLE BLADES ON A ROTOR DISK

The invention relates to a device comprising two open stacked rings (11, 12). At least one of the rings (11, 12) comprises a rotational abutment means (13) for engaging with at least one bracket of the disk. The two open rings (11, 12) are mounted in a discontinuous groove provided in the brackets,...

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Bibliographische Detailangaben
Hauptverfasser:	BOSTON, ERICK, JACQUES, AUBIN, STEPHAN, YVES, CLOAREC, YVON
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a device comprising two open stacked rings (11, 12). At least one of the rings (11, 12) comprises a rotational abutment means (13) for engaging with at least one bracket of the disk. The two open rings (11, 12) are mounted in a discontinuous groove provided in the brackets, on the end of the teeth that are located on the circumference of the rotor disk, such that the rotational abutment means (13) of the first ring (11) is placed in the opening (15) of the second ring (12). The size of the surfaces making contact with each other between the two rings (11, 12) makes it possible to damp the vibrations during operation. Ce dispositif comporte deux anneaux ouverts (11, 12), superposés. L'un au moins des anneaux (11, 12) comporte un moyen d'arrêt en rotation (13) destiné à coopérer avec au moins un crochet du disque. Les deux anneaux ouverts (11, 12), sont montés dans une gorge discontinue aménagée dans les crochets, en extrémité des dents situées en périphérie du disque de rotor, de manière que le moyen d'arrêt en rotation (13) du premier anneau (11 ) soit placé dans l'ouverture (15) du deuxième anneau (12). L'importance des surfaces de contact entre les deux anneaux (11,12) permet un amortissement des vibrations en fonctionnement.