Device for locking a turbine rotor blade

Details Device for locking a turbine rotor blade Device for locking a turbine rotor blade

1982-06-08

1985-07-09

Garrett, Robert E.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

F01D 532

Patent

active

045279527

ABSTRACT:
The rim of the rotor disk has teeth formed by axial grooves. The grooves accept the bases of the blades, which are radially locked by wedges placed between the root and the bottom of the groove. The blade base is extended by a shank bearing the platform and the blade. The locking device comprises locks provided on at least part of the sides of the spindle, and housing provided in the teeth and shaped in such a way that they interact with the locks when the wedge is placed between the blade base and the bottom of the groove. According to one embodiment, the locks are formed by the portions which extend from a locking part lodged in a notch of the blade base and of the shank.

REFERENCES:
patent: 2843356 (1958-07-01), Hull, Jr.
patent: 2949278 (1960-08-01), McCormick
patent: 3014695 (1961-12-01), Rankin
patent: 3378230 (1968-04-01), Toomey
patent: 3653781 (1972-04-01), Cooper
patent: 3936234 (1976-02-01), Tucker et al.
patent: 3986779 (1976-10-01), Beckershoff
patent: 4405285 (1983-09-01), Surdi

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