Rotor assembly for a dynamoelectric machine

Details Rotor assembly for a dynamoelectric machine Rotor assembly for a dynamoelectric machine

1980-09-29

1982-04-27

Miller, J. D.

Electrical generator or motor structure

Dynamoelectric

Rotary

310269, H02K 130

Patent

active

043273033

ABSTRACT:
The rotor assembly comprises a shaft, a rim structure, and a spider for connecting the rotor rim to the shaft. The spider structure incorporates a number of rigid arms which are secured to and extend radially from the shaft. The ends of the rigid arms are secured such that free radial motion of the rotor rim is permitted with respect to the spider, but angular motion between the rotor rim and the spider is prevented. The rotor assembly further contains a plurality of flexible cross beams and associated floating arms. The cross beams extend between adjacent spider arms, while the floating arms are firmly connected between the middle section of the cross beams and the inner surface of the rotor rim. The cross beams flex in and out in radial directions as the rotor rim contracts and expands, respectively, due to centrifugal or thermal forces.

REFERENCES:
patent: 1808568 (1931-06-01), Page
patent: 1817054 (1931-08-01), Baudry
patent: 3046426 (1962-07-01), Gynt

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