Fixture for mounting articulated turbine buckets

Details Fixture for mounting articulated turbine buckets Fixture for mounting articulated turbine buckets

2009-12-30

2011-11-01

Bryant, David (Department: 3726)

Metal working

Impeller making apparatus

C029S889200, C029S889210

Reexamination Certificate

active

08046886

ABSTRACT:
A fixture and method for assembling axial entry buckets with complex geometry to a rotor wheel is provided. The fixture features an inner and an outer split ring shaft clamp, which is bolted together around the rotor wheel packing diameter and provides a mounting base. The transfer ring mounts around and abutting the rotor wheel. The transfer ring includes a circumferential slot to accept bucket-holders. The bucket holders loaded with turbine buckets, inserted onto the transfer ring and moved circumferentially around the transfer ring to align the turbine buckets to slots on the rotor wheel. Pressure is applied to spiral the buckets from the bucket-holders into final position in slots on the rotor wheel.

REFERENCES:
patent: 5026032 (1991-06-01), Ortolano et al.
patent: 5183244 (1993-02-01), Ortolano et al.
patent: 6640437 (2003-11-01), McFarland
patent: 2008/0134503 (2008-06-01), Crain et al.
patent: 2009/0183349 (2009-07-01), Walsh et al.

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