Device for locking a root of a rotor blade
AssigneeSnecma
InventorsJacques Rene Bart, Antoine Jean-Philippe Beaujard
Life of this patent
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Abstract
A device for locking a root of a rotor blade in a groove in a rotor disk of a turbomachine including: a circular ring sector configured to be mounted, transversely to the axis of the turbomachine, in a groove in the rotor disk; at least one locking wedge, which is rigidly secured and perpendicular to the ring sector, and extends parallel to the axis of the ring sector so as to hold the root of the blade radially in the groove; and at least one locking tooth extending from the ring sector radially with respect to the axis of the ring sector, so as to prevent the root of the blade from moving axially in the groove.
Claims12
A device for locking a root of a rotor blade in a groove of a rotor disk of a turboengine, comprising:
- a circular ring sector configured to be mounted, transversely relative to an axis of the turboengine, in a recess of the rotor disk;
- at least one blocking wedge, which is fixedly joined and orthogonal relative to the ring sector and which extends parallel to an axis of the ring sector to radially support the root of the blade in the groove;
- and
- at least one blocking tooth which extends from the ring sector radially relative to the axis of the ring sector to block axial movement of the root of the blade in the groove;
- wherein the ring sector comprises an inner radial portion configured to be mounted in the recess of the rotor disk, and an outer radial portion, from which the blocking tooth extends, said outer radial portion being in radial abutment in a base of the groove, and
- wherein the device comprises ventilation means formed in the ring sector and configured to allow discharge of a flow of air which circulates between the base of the groove and the blocking wedge.
Dependencies are inferred from the claim text.