DEVICE FOR LOCKING VLADES IN DISK GROOVE

摘要

FIELD: mechanical engineering; turbines. ^ SUBSTANCE: proposed device for locking blades in peripheral groove of turbine wheel disk is made for its driving into mounting port and is provided with lock member arranged in aperture dividing two roots of blades. Blades are provided with hammer-type roots made in groove through mounting port and held with possibility of fitting in groove through engagement with its side walls. Lock member is made for lifting under action of radial lifting screw into lock seat made in side walls of groove. Head of lifting screw thrusts against bottom of groove. Radial clearance is provided between bottom of grove and lower part of blade root. Head of screw is held radially outside by two adjacent roots of blades. ^ EFFECT: provision of locking device which can be set in confined round space. ^ 7 cl, 12 dwg