ATTACHMENT UNIT FOR SECURING DISK OF TURBOMACHINE TO SHAFT Russian patent published in 1995 - IPC

FIELD: manufacture of turbines. SUBSTANCE: attachment unit consists of shaft with fitted pins pressed in it, disk whose flange is provided with flexible connector and is mounted on pins and nut secured on shaft which is used for locking the disk in axial direction. Attachment is provided with ring mounted on shaft and engageable with shaft flange by its end surface; this ring has projections which lock flange of disk; disk and ring are provided with semicircular grooves which form slots for fitted pins. Ring is mounted at radial clearance relative to surface of disk flange directed to it. Flange of disk and shaft are provided with splines which form splined joint at radial clearance between them. EFFECT: enhanced reliability. 3 cl, 9 dwg