Anti-wear device of a turbomachine rotor

An anti-wear plug of a turbomachine rotor comprising:

• a metal head in the form of a disk forming a bearing surface for blades of said turbomachine,
• a stud extending from the metal head;
• an insert made of shape-memory deformable material forming a sleeve around the stud;
• and
• a clamping rigid annular element with a collar, the collar being pressed against the insert made of deformable material and capable of deforming the insert by being screwed onto the stud so that the collar of the annular element deforms the insert to form a protrusion of the insert,
• wherein the metal head comprises markings for insertion of a tool for screwing the plug about the stud.

A compressor rotor of a gas turbine engine, including an anti-wear device comprising:

• a disk with a rim and axial recesses machined on the rim for individually housing blades;
• and
• a ring fitted to one face of the rim, the ring being pierced with holes in an axial extension of the recesses, at least one of said holes in the axial extension of the recesses being closed by a plug comprising a metal head forming a bearing surface for said blades,
• wherein the plug comprises
• a stud extending from the metal head,
• an insert made of deformable material surrounding at least partly the stud, and
• a rigid annular element with a collar, the rigid annular element being interposed between the stud and the insert at a downstream end of the stud opposite the metal head,
• wherein an axial length of the insert and an axial length of the rigid annular element are greater than an axial length of the at least one of said holes, and
• wherein the insert made of deformable material is deformed by the collar of the rigid annular element so as to present a protrusion formed between a downstream outlet of the hole and the collar of the rigid annular element so as to immobilize the plug in the at least one of said holes.