Apparatus for saturating and hardening the stator winding rods of high voltage electric machines

Claim 2

Apparatus for saturating and actual size hardening of tapes utilized to insulate rods of stator windings of electric machines, each of said rods having a straight groove portion and curved winding end portions relative to said straight groove portion, said apparatus comprising a plurality of frames each having frame wall portions defining the groove dimensions of a corresponding rigid rod wound with the insulating tape and substantially in its final configuration, and additional bending frame wall portionS for fixing the curved winding end portions of said rod in the junction between said groove and said end portions and having a straight groove portion extending between said curved winding end portions for fixing the straight groove portion of the rod, a corresponding one of said rods being inserted into each of said frames thereby preparing said frames and said rods for a saturating operation; and hardening unit means comprising a carrier for a plurality of said rods and their frames combined into a hardening unit with said frames in axial parallel relation to each other and an additional frame provided for all said rods in common at each surface at each end of said hardening unit for fixing the winding end portions and rod ends thereby preparing said frames and said rods for a hardening operation.

Claim 3

Apparatus as claimed in claim 1, wherein the additional frame of said hardening unit means comprises curved bearing surfaces corresponding to the curve of the winding end portions of said rods for supporting the bottom surfaces of said rods.

Claim 4

Apparatus as claimed in claim 2, wherein said carrier comprises a wheeled vehicle including a bottom plate and structure at each end for the additional frame of said hardening unit means.

Claim 5

Apparatus as claimed in claim 2, wherein said carrier comprises a slidable platform including a bottom plate and structure at each end for the additional frame of said hardening unit means.

Claim 6

Apparatus for saturating and actual size hardening of tapes containing mica and having a small adhesive content utilized to insulate rods of stator windings of turbogenerators, each of said rods having a straight groove portion and curved winding end portions relative to said straight groove portion, rods wound with said tapes being inserted into a saturating and hardening frame and saturated in said frame and hardened in a manner which determines the outer dimensions of the completed wound insulating tape, said rods being inserted into their frame by assembling of frame portions comprising spacers and fillers in a manner whereby the groove dimensions of a stack of stator laminations for said rods provide appropriate receiving channels, said apparatus comprising a plurality of frames each having frame wall portions defining the groove dimensions of a corresponding rigid rod wound with the insulating tape and substantially in its final configuration, and additional bending frame wall portions for fixing the curved winding end portions of said rod in the junction between said groove and said end portions and having a straight groove portion extending between said curved winding end portions for fixing the straight groove portion of the rod, a corresponding one of said rods being inserted into each of said frames thereby preparing said frames and said rods for a saturating operation; and hardening unit means comprising a carrier for a plurality of said rods and their frames combined into a hardening unit with said frames being in axial parallel relation to each other and an additional frame provided for all said rods in common at each surface at each end of said hardening unit for fixing the winding end portions and rod ends thereby preparing said frames and said rods for a hardening operation.

Claim 7

Apparatus for saturating and actual size hardening of tapes containing mica and having a small adhesive content utilized to insulate rods of stator windings of turbogenerators, each of said rods having a straight groove portion and curved winding end portions relative to said straight groove portion, rods wound with said tapes being inserted into a saturating and hardening frame and saturated in said frame and hardened in a manner which determines the outer dimensions of the completed wound insulating tape, said rods being inserted into their frame by assembling of frame portions comprising spacers and fillers in a manner whereby the groove dimensions of a stack of stator laminations for said rods provide appropriate receiving channels, said apparatus comprising a plurality of frames each having frame wall portions defining the groove dimensions of a corresponding rigid rod wound with the insulating tape and substantially in its final configuration, and additional bending frame wall portions for fixing the curved winding end portions of said rod in the junction between said groove and said end portions and having a straight groove portion extending between said curved winding end portions for fixing the straight groove portion of the rod, a corresponding one of said rods being inserted into each of said frames thereby preparing said frames and said rods for a saturating operation; and hardening unit means comprising a carrier for a plurality of said rods and their frames combined into a hardening unit with said frames being in axial parallel relation to each other and an additional frame provided for all said rods in common at each surface at each end of said hardening unit for fixing the winding end portions and rod ends thereby preparing said frames and said rods for a hardening operation.

Claim 8

Apparatus as claimed in claim 5, wherein said carrier includes a bottom plate and structure at each end for the additional frame of said hardening unit means.

Claim 9

Apparatus as claimed in claim 5, wherein the additional frame of said hardening unit means comprises curved bearing surfaces corresponding to the curve of the winding end portions of said rods for supporting the bottom surfaces of said rods.

Claim 10

Apparatus as claimed in claim 6, wherein said carrier comprises a wheeled baking cart.

Claim 11

Apparatus as claimed in claim 6, wherein said carrier comprises a sled.