Patent ID: 8834124
Filing Date: 2014-09-16
Classification: F01D,Y02T

Abstract:
1. A locking device designed to permit locking, in a circular fashion, of a set of blades provided with a hammer-type root, on a rim of a turbine engine compressor hub, said rim comprising a peripheral groove on an outer face thereof designed to receive the roots of the blades of said set and two shoulders surrounding said groove of which faces form bearing surfaces for holding said blades, said rim further comprising a cutout formed in at least one of said shoulders to enable the roots of the blades to be inserted in said groove, said device comprising: a lock which immobilizes the blades in translation in said groove, said lock being positioned in said groove between first and second consecutive blades and being held in translation in said groove; a support; and a fixing device, wherein said lock includes an upper block with a first planar face abutting said root of said first blade and a second planar face abutting said root of said second blade, and a base which supports the upper block, said base extended by segments with an upper surface which is planar and a lower surface with a shape corresponding to a shape of a base of said peripheral groove, wherein said support includes first and second planar faces which are parallel to and abut first and second faces of said cutout and a shape of said support corresponds to a shape of said cutout, and wherein a thickness of said segments is less than a radial clearance between said root of said blades and said base of said peripheral groove.