F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 5/30 (2006.01)
Patent
CA 2747983
The invention relates to a locking device for enabling the circular locking of a set of blades provided with a hammer base (5) on the rim of a turbine engine compressor hub (3), said rim comprising a peripheral groove (4) on the outer surface thereof for receiving the bases (5) of the blades of said set and two shoulders (7) framing said groove with surfaces which form bearings for holding said blades, said rim also comprising a cut-out (8) provided in at least one of said shoulders (7) to enable the bases (5) of the blades to be inserted in said groove (4), said device comprising a means (10) for translatably immobilising the blades in said groove, suitable for being positioned in said groove (4) between two consecutive blades and in turn translatably held in said groove by an attachment means, characterised in that said carrier is shaped so as to fit into said cut-out (8) and to rest circumferentially on at least one engagement surface (9a, 9b) of said shoulder (7).
Dispositif de blocage destiné à permettre le blocage circulaire d'un jeu d'aubes munies d'un pied (5) de type marteau, sur la jante d'un disque (3) de compresseur d'une turbomachine, ladite jante comportant une rainure périphérique (4) sur sa face externe destinée à recevoir les pieds (5) des aubes dudit jeu et deux épaulements (7) encadrant ladite rainure dont les faces forment des portées de rétention desdites aubes, ladite jante comportant en outre une découpe (8) ménagée dans au moins un desdits épaulements (7) pour permettre l'introduction des pieds (5) des aubes dans ladite rainure (4), ledit dispositif comportant un moyen d'immobilisation en translation (10) des aubes dans ladite rainure, apte à être positionné dans ladite rainure (4) entre deux aubes consécutives et maintenu lui-même en translation dans ladite rainure par un moyen de fixation, caractérisé en ce que ledit support est conformé pour s'intégrer dans ladite découpe (8) et prendre circonférentiellement appui sur au moins une surface coopérante (9a, 9b) dudit épaulement (7).
Belmonte Olivier
Bosco Franck Emmanuel
Goudreau Gage Dubuc
Snecma
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