Method and apparatus for removing stator vanes

Details Method and apparatus for removing stator vanes Method and apparatus for removing stator vanes

1975-09-02

1978-06-27

Lanham, C.W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29427, 29244, 29267, 29283, B23P 1504, B23P 1902, B23P 1904

Patent

active

040966143

ABSTRACT:
A stator vane is removed from an arcuate casing by placing a conforming mold over the vane airfoil with portions thereof extending axially on either side of the airfoil to provide driving surfaces, and repetitiously imparting a precisely directed impact to the driving surfaces to move the vane circumferentially within the casing. Impact to the driving surfaces is made by way of an elongated arm which is supported at its one end so as to be pivotable about the axis of the casing, and whose other end is bifurcated to straddle the vane row and impinge against the driving surfaces. In this way the individual vanes may be removed from a single stage without incurring significant damage thereto and without removing any vanes of adjacent stages.

REFERENCES:
patent: 930735 (1909-08-01), Dahl
patent: 1172334 (1916-02-01), Williamson
patent: 1172335 (1916-02-01), Williamson
patent: 1269144 (1918-06-01), Williamson
patent: 2130478 (1938-09-01), Allard
patent: 2912222 (1959-11-01), Wilkes, Jr.
patent: 3673668 (1972-07-01), Crook

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