Turbomachine rotor with a means for axial retention of the blades

摘要

A rotor of a turbomachine, such as a multi-flow turbojet engine fan, has a disc including, on the rim thereof, substantially axial slots with a dovetailed cross-section, and blades mounted individually in the slots, an axial wedge positioned between the root of the blades and the bottom of the slots, and a transverse lock providing upstream axial immobilization of the blades in the slot thereof. The lock is guided in radial notches formed in the flanks of the slots and radially supported against the wedge. The axial wedge is immobilised in the upstream direction, butting up against a transverse annular component secured to the disc.

主权项

1. A turbomachine rotor, comprising:
a disk with substantially axial pockets of dovetail cross section on a rim of the disk; blades mounted individually in the pockets and inter-blade platforms mounted between the pockets; an axial wedge arranged between a root of each of the blades and a bottom of each of the pockets; and a transverse lock providing upstream axial blockage of the blades in the respective pocket, the lock being guided in radial notches formed in side walls of the pockets and bearing radially against the wedge, wherein the axial wedge is immobilized in an upstream direction by being in abutment against a transverse annular component secured to the disk, said inter-blade platforms being held in place by an annular shell ring comprising a part against which a lug formed on said inter-blade platforms can rest, and wherein the axial wedge and the lock are free of a fastener connection between each other.