Rotor-in-stator examination magnetic carriage and positioning apparatus

• US 4,803,563 A
• Filed: 09/02/1987
• Issued: 02/07/1989
• Est. Priority Date: 09/02/1987
• Status: Expired due to Term

• Current Assignee: Siemens Power Generation, Inc.
• Original Assignee: Westinghouse Electric Corporation (Paramount Global (f/k/a ViacomCBS Inc.))
• Inventors: Morrison, Paul E., Dailey, George F.
• Primary Examiner(s): Groody, James J.
• Assistant Examiner(s): Peng, John K.
• Application Number:
  US07/092,790
• Time in Patent Office: 524 Days
• Field of Search: 358/100, 358/108, 358/101, 358/107, 324/220, 324/221, 324/226, 324/262, 280/652
• US Class Current: 348/83
• CPC Class Codes: G01N 27/902 by moving the sensors
• CPC Class Codes: G01R 31/34 Testing dynamo-electric machines

Abstract

A moveable magnetic carriage on which is mounted inspection equipment for inspecting the stator of an electrical generator without removal of the generator rotor. An associated positioning device positions the carriage on the generator.

Claims

1. A moveable carriage comprising:

chassis means adapted for movement along a surface;

magnet means attached to said chasis means for moveably securing said chasis means to the surface; and

separator means interposed between said magnet means and the surface for relatively positioning said magnet means out of contact with the surface.

2. The carriage of claim 1 wherein inspection means are mounted on said chasis means for inspecting in the vicinity of said carriage.

3. The carriage of claim 2 wherein said inspection means includes electrical generator inspection means.

4. The carriage of claim 3 wherein said electrical generator inspection means includes camera means.

5. The carriage of claim 3 wherein said electrical generator inspection means includes electro-magnetic core imperfection detector means.

6. The carriage of claim 4 including illumination means mounted on said chasis means.

7. A carriage positioning device for positioning a carriage with magnetic attachment apparatus comprising:

positioning means adapted for releasable attachment to the carriage; and

carriage securing means which includes magnetic attraction means for magnetically releasably securing the carriage to said positioning means.

8. The positioning device of claim 7 wherein said positioning means is adapted for releasable attachment to an electrical generator.

9. A carriage assembly comprising:

a carriage adapted for movement along a surface;

positioning means adapted for releasable attachment to said carriage; and

magnet means attached to said carriage for moveably attaching said carriage to the surface.

10. The carriage assembly of claim 9 wherein said positioning means is adapted for releasable attachment to an electrical generator.

11. An inspection system comprising:

a carriage adapted for movement along a surface;

positioning means adapted for releasable attachment to said carriage;

magnet means attached to said carriage for movably attaching said carriage to the surface; and

inspection means mounted on said carriage for inspecting in the vicinity of said carriage.

12. The inspection system of claim 11 wherein said inspection means includes electrical generator inspection means.

13. The inspection system of claim 12 wherein said electrical generator inspection means includes camera means.

14. The inspection system of claim 12 wherein said electrical generator inspection means includes electro-magnetic core imperfection detector means.

15. The inspection system of claim 13 including illumination means mounted on said carriage.

16. An electrical generator inspection system comprising:

a carriage adapted for movement along a surface of the electrical generator;

positioning means adapted for releasable attachment to the electrical generator and said carriage;

magnet means attached to said carriage for moveably attaching said carriage to the generator and said positioning means; and

inspection means mounted on said carriage for inspecting the electrical generator in the vicinity of the carriage.

17. The electrical generator inspection system of claim 16 wherein said inspection means includes camera means.

18. The electrical generator inspection system of claim 16 wherein said inspection means includes electro-magnetic core imperfection detector means.

19. The electrical generator inspection system of claim 17 including illumination means mounted on said carriage.