Rotor withdrawal arrangement for bulb generators

Details Rotor withdrawal arrangement for bulb generators Rotor withdrawal arrangement for bulb generators

1982-04-27

1984-05-08

Dobeck, B.

Prime-mover dynamo plants

Turbogenerators

290 54, 415500, F03B 310, F03B 1110, G03B 1310

Patent

active

044477392

ABSTRACT:
Apparatus for withdrawing the rotor from the stator in a bulb-type generator makes the rotor and the inner portion of the stator accessible for repair or maintenance without having to disassemble the housing and stator. A pair of detachable beams are placed in the housing when the rotor is stationary so they extend through holes provided in the rotor above the shaft on which the rotor turns. The beams are conveniently mounted to the upper stay tower structure at their downstream end, and to the housing at their upstream end. An additional support member may be used between the beams and the bottom of the housing at the upstream end of the beams. Shoes which slidably engage the beam are placed between the beam and the rotor to support the rotor. Preferably the shoes include a hydraulically operated piston which can be extended to ensure positive engagement with the beam. The rotor has an inner ring which is bolted to a driving disc on the shaft. The bolts are removed and a hydraulic jack is used to slide the rotor outwards along the beams clear of the stator.

REFERENCES:
patent: 4151970 (1979-05-01), Bernhard et al.

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