US 4,230,960 AGranted

Flexible mounting for an end-supported stator core

AssigneeWestinghouse Electric Corp.

InventorsJames M. Mayher, Andrew S. Ying

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Abstract

The stator core of a dynamoelectric machine is end-supported by a flexible mounting which includes bore rings encircling the stator core at spaced-apart locations. Outer and inner plate springs extend independently along each exterior side of the stator core within the horizontal center plane thereof to independently interconnect the bore rings with end boxes. The outer springs are joined to one or more bore rings arranged between other bore rings at the middle part of the stator core and the inner springs are joined to at least one bore ring at the end of the stator core. A plate spring is used as a stabilizer to extend between the end boxes below the stator core within the vertical center plane thereof to join the bore rings to the end boxes. The bore rings have flat peripheral surfaces for attachment to each of the springs.

Claims8

Dependent claims

A flexible mounting for an end-supported stator core in a dynamoelectric machine comprising the combination of:

a plurality of bore rings encircling the stator core at coaxially, spaced-apart locations therealong,
an end box disposed at each end of the stator core,
outer and inner springs extending independently at each exterior side of the stator core within the horizontal center plane thereof to independently interconnect the bore rings with the end boxes, said springs defining a resiliency radially of the stator core to isolate double-frequency core vibration and a stiffness tangentially to the stator core to resist a short-circuit torque, each outer spring being joined to a bore ring disposed axially between other bore rings, and each inner spring being joined to a bore ring at one end of the stator core, and
a stabilizer joined to the bore rings and extending between the end boxes below the stator core within the vertical central plane thereof.

1 more element

Dependencies are inferred from the claim text.