Winding support system for a dynamoelectric machine

Claim 2

A winding support system comprising a stator having a group of transversely spaced insulated conducting members, extending beyond respective ends of said stator and diverging radially outwardly from the axis of said stator thereat, framework means constrictable in a direction transverse to said radially diverging conducting members comprising first and second substantially parallel axially disposed support members disposed on either side of said group of conducting members, crossing said conducting members at an angle, said first support members being supported by said stator and said second support members each being movable relative to one another, first means connected between said first and second support members for constricting the framework, and a plurality of conformable pads of thermosetting material disposed between adjacent conducting members and between outer conducting members and the support members, whereby the framework means can be constricted with the first means and the conformable pads cured to hold the conducting members in ridigly spaced relationship.

Claim 3

A stator end winding support comprising a stator having at least one row of circumferentially spaced armature bars projecting beyond the stator end and diverging radially outwardly thereat said armature bars being subject to thermal expansion and contraction in an axial direction, constrictable framework means including a plurality of first and second support members lying radially inward and outward of and crossing said armature bars at an angle, said first support members being movable with respect to one another, a plurality of conformable pads of thermosetting material disposed at the intersections of the inner and outer support members with the armature bars, means connected between said first and second support members to constrict the framework about the armature bars, whereby the thermosetting conformable pads can be depressed to conform to the bars, and means supporting said framework from the stator for substantially unrestrained axial movement therewith, whereby the projecting armature bars are held in a rigid cage whIch is axially slidable to compensate for thermal expansion and contraction of the armature bars with respect to the stator.

Claim 4

A stator end winding support comprising a stator having at least one row of circumferentially spaced armature bars projecting beyond the stator end and diverging radially outwardly thereat said armature bars being subject to thermal expansion and contraction in an axial direction, constrictable framework means including a plurality of first and second support members lying radially inward and outward of and crossing said armature bars at an angle, said first support members being movable with respect to one another, a plurality of conformable pads of thermosetting material disposed at the intersections of the inner and outer support members with the armature bars, means connected between said first and second support members to constrict the framework about the armature bars, whereby the thermosetting conformable pads can be depressed to conform to the bars, and means supporting said framework from the stator for substantially unrestrained axial movement therewith, whereby the projecting armature bars are held in a rigid cage whIch is axially slidable to compensate for thermal expansion and contraction of the armature bars with respect to the stator.

Claim 5

A stator end winding support comprising a stator having at least one row of circumferentially spaced armature bars projecting beyond the stator end and (skewed ) diverging radially outwardly thereat with respect to the stator axis, said armature bars being subject to thermal expansion and contraction in an axial direction, a plurality of circumferentially spaced first support members projecting from the stator coplanar with the stator axis and crossing said armature bars at an angle, a plurality of circumferentially spaced second support members disposed on the other side of the armature bars from said first support members and substantially radially aligned with the first support members, tension means connecting the inner and outer support members with one another for rigidly supporting the intersecting armature bars therebetween, and second means supporting at least the first support members from the stator for substantially unrestrained axial movement therewith, whereby the projecting armature bars are held in a rigid framework which is axially slidable to compensate for thermal expansion and contraction of the armature bars with respect to the stator.

Claim 6

A stator end winding support comprising a stator having at least one row of circumferentially spaced armature bars projecting beyond the stator end and (skewed ) diverging radially outwardly thereat with respect to the stator axis, said armature bars being subject to thermal expansion and contraction in an axial direction, a plurality of circumferentially spaced first support members projecting from the stator coplanar with the stator axis and crossing said armature bars at an angle, a plurality of circumferentially spaced second support members disposed on the other side of the armature bars from said first support members and substantially radially aligned with the first support members, tension means connecting the inner and outer support members with one another for rigidly supporting the intersecting armature bars therebetween, and second means supporting at least the first support members from the stator for substantially unrestrained axial movement therewith, whereby the projecting armature bars are held in a rigid framework which is axially slidable to compensate for thermal expansion and contraction of the armature bars with respect to the stator.

Claim 7

A stator end winding support comprising a stator having at least one row of circumferentially spaced armature bars projecting beyond the stator end and (skewed ) diverging radially outwardly thereat with respect to the stator axis, said armature bars being subject to thermal expansion and contraction in an axial direction, a plurality of circumferentially spaced first support members projecting from the stator coplanar with the stator axis and crossing said armature bars at an angle, a plurality of circumferentially spaced second support members disposed on the other side of the armature bars from said first support members and substantially radially aligned with the first support members, a first group of conformable thermosetting pads disposed between the first support members and the armature bars, a second group of conformable thermosetting pads disposed between the second support members and the armature bars, adjustable tension means securing the inner and outer support members together for constricting the support members to depress the thermosetting pads against the armature bars where they cross the first and second support members, and means supporting at least the first support members from the stator for substantially unrestrained axial movement therewith, whereby the projecting armature bars are held in a rigid framework which is axially slidable to compensate for thermal expansion and contraction of the armature bars with respect to the stator.

Claim 8

A stator end winding support comprising a stator having at least one row of circumferentially spaced armature bars projecting beyond the stator end and (skewed ) diverging radially outwardly thereat with respect to the stator axis, said armature bars being subject to thermal expansion and contraction in an axial direction, a plurality of circumferentially spaced first support members projecting from the stator coplanar with the stator axis and crossing said armature bars at an angle, a plurality of circumferentially spaced second support members disposed on the other side of the armature bars from said first support members and substantially radially aligned with the first support members, a first group of conformable thermosetting pads disposed between the first support members and the armature bars, a second group of conformable thermosetting pads disposed between the second support members and the armature bars, adjustable tension means securing the inner and outer support members together for constricting the support members to depress the thermosetting pads against the armature bars where they cross the first and second support members, and means supporting at least the first support members from the stator for substantially unrestrained axial movement therewith, whereby the projecting armature bars are held in a rigid framework which is axially slidable to compensate for thermal expansion and contraction of the armature bars with respect to the stator.

Claim 9

A stator end winding support comprising a stator having circumferentially spaced longitudinal winding slots therein, a circumferential row of bottom armature bars having slot-lying portions disposed in said slots (and ) , said bottom armature bars projecting beyond the stator end (, said bottom bars each being displaced) and each extending circumferentially from the slot and diverging radially from the stator axis, a circumferential row of top armature bars having slot-lying portions disposed in said slots (and ) , said top armature bars projecting beyond the stator end (, said top bars being displaced ) and each extending circumferentially in an opposite sense from the bottom bars and diverging radially from the stator axis, a plurality of circumferentially spaced first support members projecting from the stator substantially coplanar with the stator axis and defining surfaces diverging radially therefrom and uniformly spaced from one row of armature bars, a plurality of circumferentially spaced second support meMbers projecting from the stator coplanar with the stator axis on the opposite side of the bars from the first support members and radially aligned with said first support members, said second support members defining surfaces diverging radially from the stator axis and uniformly spaced from the other row of armature bars, circumferential separating means disposed between the top and bottom bars, a first group of conformable pads disposed in the spaces between the first support members and the bars, a second group of conformable pads disposed in the space between the second support members and the bars, adjustable tension means securing the first and second support members together for squeezing the pads against the armature bars, and support bracket means connected between said first support members and the stator, to allow axial movement of the first support members with respect to the stator, whereby the projecting armature bars are held in a rigid framework which is axially slidable to compensate for thermal expansion and contraction of the armature bars with respect to the stator.

Claim 10

A stator end winding support comprising a stator having circumferentially spaced longitudinal winding slots therein, a circumferential row of bottom armature bars having slot-lying portions disposed in said slots (and ) , said bottom armature bars projecting beyond the stator end (, said bottom bars each being displaced) and each extending circumferentially from the slot and diverging radially from the stator axis, a circumferential row of top armature bars having slot-lying portions disposed in said slots (and ) , said top armature bars projecting beyond the stator end (, said top bars being displaced ) and each extending circumferentially in an opposite sense from the bottom bars and diverging radially from the stator axis, a plurality of circumferentially spaced first support members projecting from the stator substantially coplanar with the stator axis and defining surfaces diverging radially therefrom and uniformly spaced from one row of armature bars, a plurality of circumferentially spaced second support meMbers projecting from the stator coplanar with the stator axis on the opposite side of the bars from the first support members and radially aligned with said first support members, said second support members defining surfaces diverging radially from the stator axis and uniformly spaced from the other row of armature bars, circumferential separating means disposed between the top and bottom bars, a first group of conformable pads disposed in the spaces between the first support members and the bars, a second group of conformable pads disposed in the space between the second support members and the bars, adjustable tension means securing the first and second support members together for squeezing the pads against the armature bars, and support bracket means connected between said first support members and the stator, to allow axial movement of the first support members with respect to the stator, whereby the projecting armature bars are held in a rigid framework which is axially slidable to compensate for thermal expansion and contraction of the armature bars with respect to the stator.

Claim 11

The combination according to claim 5 wherein the brackets each comprise a stationary member secured to the stator including a bifurcated flanged portion axially enclosing a part of a first support member, pin means passing through holes defined by the first support member and the bifurcated flange and axially slidable within said flange holes, and friction reducing pads supporting the pin means for axial movement in the flange.

Claim 12

The combination according to claim 5 wherein circumferential hoop members are secured to said circumferentially spaced first support members to provide lateral support therefor, and conformable pads are disposed between said hoop members and the armature bars adjacent said first support members.

Claim 13

The combination according to claim 5 wherein a plurality of arcuate baffle segments are disposed on said support members radially inward from said top armature bars in circumferential alignment, whereby said baffle segments together define a baffle ring radially inward from the end turns.

Claim 14

For use on a dynamoelectric machine stator having a circumferential structural member supporting the end turns of the stator winding, the combination of a plurality of axially spaced collecting rings electrically connected to said end turns, first stationary means restraining said collecting rings in an axial direction, a plurality of rigid spacer means interposed between said collecting rings, second means movable in an axial direction relative to one another and with respect to said first means and transversely to the collecting rings, a plurality of conformable thermosetting pads disposed between the collecting rings and said spacer means, and third adjustable means causing the second means to move toward the first stationary means constricting the thermosetting pads to hold the collecting rings in a rigid framework.

Claim 15

For use on a dynamoelectric machine stator having a circumferential structural member supporting the end turns of the stator winding, the combination of a plurality of axially spaced collecting rings electrically connected to said end turns, first stationary means restraining said collecting rings in an axial direction, a plurality of rigid spacer means interposed between said collecting rings, second means movable in an axial direction relative to one another and with respect to said first means and transversely to the collecting rings, a plurality of conformable thermosetting pads disposed between the collecting rings and said spacer means, and third adjustable means causing the second means to move toward the first stationary means constricting the thermosetting pads to hold the collecting rings in a rigid framework.