Locking system for a turbine side entry blade

Details Locking system for a turbine side entry blade Locking system for a turbine side entry blade

1986-03-26

1987-06-30

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416193A, F01D 532

Patent

active

046767231

ABSTRACT:
A locking system for attaching a circular array of side entry steam turbine blades to a rotor disc utilizing a circumferential groove in the outer periphery of the disc and a notch in one side of a blade platform to form an opening for receiving a pin which prevents the blade from sliding in the side entry slots in the disc and the next blade installed on the rotor captures a pin in the preceding blade except the last blade assembled in the array or closing blade has a kerf in the platform which registers with the circumferential groove in the disc and a locking key fitting into the kerf and groove to hold the last blade in place and the locking key being captured in the kerf and groove by a strip of metal passing through a slit in the locking key and an opening formed in the platforms.

REFERENCES:
patent: 2843356 (1958-07-01), Hull
patent: 2867408 (1959-01-01), Kolb et al.
patent: 2942842 (1960-06-01), Hayes
patent: 2949278 (1960-08-01), McCormick
patent: 2963271 (1960-12-01), McCormick
patent: 3039740 (1962-06-01), Hockert
patent: 3157385 (1964-11-01), Jenson
patent: 3198485 (1965-08-01), Melenchuk
patent: 3202398 (1965-08-01), Webb
patent: 3904317 (1975-09-01), Cardin

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