Mechanical constraint for tapered end turns of a generator rotor

• US 6,194,807 B1
• Filed: 07/29/1999
• Issued: 02/27/2001
• Est. Priority Date: 08/26/1998
• Status: Expired due to Term

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Lloyd, Robert Francis, Kaminski, Christopher Anthony, Walko, Steven Charles
• Primary Examiner(s): NGUYEN, TRAN N
• Application Number:
  US09/363,014
• Time in Patent Office: 579 Days
• Field of Search: 310/217, 310/218, 310/214, 310/215, 310/258-260, 310/264, 310/261, 310/269-270, 310/64, 310/65, 310/58, 310/59, 310/60.R, 310/61, 310/91, 295/96--98
• US Class Current: 310/270
• CPC Class Codes: H02K 3/51 applicable to rotors only

Abstract

An end turn arrangement for turns in a rotor where individual windings are stacked in tapered radial slots in the rotor, with successive turns having a smaller width in a radial inward direction, the end turns of the individual turns of each stack being vertically aligned along a common edge. The end turns are separated by blocking separators, each including a first anchor component having a first planar exterior surface and a second planar interior engagement surface; and a second slide component having a first non-planar exterior surface and a second planar interior engagement surface; the anchor and slide components having mating guide elements permitting the anchor and slide components to move relative to each other along a straight assembly path.

Claims

1. A blocking separator for use between end turns of windings in a rotor, said blocking separator comprising a first anchor component having a first planar exterior surface and a second planar interior engagement surface;

and a second slide component having a first non-planar exterior surface and a second planar interior engagement surface;

said anchor and slide components having mating guide elements permitting said anchor and slide components to move relative to each other along a straight assembly path;

wherein the mating guide elements include a pair of pins on the slide component and a groove in the anchor component.

2. A blocking separator for use between end turns of windings in a rotor, said blocking separator comprising a first anchor component having a first exterior surface and a second planar interior engagement surface;

and a second slide component having a first non-planar exterior surface and a second planar interior engagement surface;

said anchor and slide components having mating guide elements permitting said anchor and slide components to move relative to each other along a straight assembly path.

3. A blocking separator for use between end turns of windings in a rotor, said blocking separator comprising a first anchor component having a first planar exterior surface and a second planar interior engagement surface;

and a second slide component having a first non-planar exterior surface and a second planar interior engagement surface;

said anchor and slide components having mating guide elements permitting said anchor and slide components to move relative to each other along a straight assembly path.

4. The blocking separator of claim 3 wherein said first non-planar exterior surface of said slide component has a surface portion parallel to the second planar interior engagement surface of the anchor component and another surface portion parallel to the first planar exterior surface of the anchor component.

5. The blocking separator of claim 4 wherein the mating guide elements include a pair of pins on the slide component and a groove in the anchor component.

6. The blocking separator of claim 3 and including a cap plate secured across and extending beyond one end of the anchor and slide components.