Turbine blade self locking seal plate system

摘要

A seal plate system ( 24 ) for a rotor in a turbine engine. The rotor includes a rotor disc ( 10 ) for supporting a plurality of blades ( 16 ), and an annular groove ( 32 ) provided in the disc ( 10 ) adjacent at least one end ( 30 ) of the disc ( 10 ). A plurality of plate structures ( 60 ) are provided supported between the annular groove ( 32 ) of the disc ( 10 ) and a groove ( 56 ) formed in a platform ( 26 ) of the blade ( 16 ) adjacent an end ( 30 ) of the disc ( 10 ). The plate structure ( 60 ) includes a plate ( 64 ) and an elongated resilient locking pointer ( 66 ) extending from the plate ( 64 ) for engaging in a lock notch ( 98 ) formed in an outer wall ( 38 ) of the annular groove ( 32 ). The locking pointer ( 66 ) forms a self-locking feature that is biased into the lock notch ( 98 ) as the plate structure ( 60 ) is moved into position on the disc ( 10 ).