Slip ring containment band

Patent metadata

Field	Value
Publication number	US-9528891-B2
Application number	US-201414552511-A
Country	US
Kind code	B2
Filing date	Nov 25, 2014
Priority date	Nov 25, 2014
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A slip ring has a rotating portion configured to take in signals from rotating electric transmission elements, and communicate those signals into a static portion. The rotating portion has a plurality of resistors which rotate. The resistors have an outer peripheral surface, and a containment ring surrounding the outer peripheral surface of the plurality of resistors. A method of testing a rotating component is also disclosed.

First claim

The invention claimed is:

1. A system comprising:
a slip ring having a rotating portion configured to take in signals from rotating electric transmission elements, and communicate those signals into a static portion;
the rotating portion having a plurality of resistors which rotate, said resistors having an outer peripheral surface, and a containment ring surrounding said outer peripheral surface of said plurality of resistors; and
gauges are mounted on a component which is rotating, and said gauges being said rotating electric transmission elements, and said resistors connected to wires that each extend from one of said resistors to one of a plurality of turrets, or one of a plurality of strain gauges such that said turrets communicate electrical signals through brushes to a control, and said containment ring containing said resistors during rotation of said rotating portions.

2. The system as set forth in claim 1 , wherein said resistors are generally rectangular.

3. The system as set forth in claim 2 , wherein said containment ring has a plurality of pins extending in an axial direction to attach the containment ring to another portion of the slip ring.

4. The system as set forth in claim 3 , wherein said resistors extend for an axial distance beyond an axial distance of said containment ring.

5. The system as set forth in claim 3 , wherein an inner periphery of said containment ring has flats to receive radially outer surfaces of said resistors.

6. The system as set forth in claim 5 , wherein said flats are separated by part-circular portions.

7. The system as set forth in claim 1 , wherein the component to be tested is a turbine.

8. The system as set forth in claim 7 , wherein the turbine is a ram air turbine.

9. The system as set forth in claim 8 , wherein an air source causes a portion of said ram air turbine to rotate.

10. The system as set forth in claim 1 , wherein a rotational drive drives said component to rotate.

11. The system as set forth in claim 1 , wherein an inner periphery of said containment ring has flats to receive radially outer surfaces of said resistors.

12. The system as set forth in claim 11 , wherein said flats are separated by part-circular portions.

13. A method of testing a rotating component comprising the steps of:
(a) rotating a component and including gauges on the rotating component, and transmitting signals from said gauges through a slip ring and to a controller to analyze those signals;
(b) the slip ring including a plurality of resistors which are rotated, and said resistors having an outer peripheral surface, and a containment ring surrounding said outer peripheral surface of said plurality of resistors, and said resistors connected to wires that each extend from one of said resistors to one of a plurality of turrets, or one of a plurality of strain gauges such that said turrets communicate electrical signals through brushes to a control, and said containment ring containing said resistors during rotation of said rotating portions; and
(c) said component is a turbine.

14. The method as set forth in claim 13 , wherein said resistors are rectangular.

15. A system comprising:
a slip ring having a rotating portion configured to take in signals from rotating electric transmission elements, and communicate those signals into a static portion;
the rotating portion having a plurality of resistors which rotate, said resistors having an outer peripheral surface, and a containment ring surrounding said outer peripheral surface of said plurality of resistors; and
said resistors being generally rectangular, and said resistors connected to wires that each extend from one of said resistors to one of a plurality of turrets, or one of a plurality of strain gauges such that said turrets communicate electrical signals through brushes to a control, and said containment ring containing said resistors during rotation of said rotating portions.

16. The system as set forth in claim 15 , wherein said resistors are rectangular.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Hanson Brian J
• Hanson Alan D

Classifications

• G01M13/025 Primary

  Test-benches with rotational drive means and loading means; Load or drive simulation · CPC title

• G01M99/004

  Testing the effects of speed or acceleration · CPC title

• G01L3/1492 Primary

  involving electric couplings · CPC title

• G01M15/14

  Testing gas-turbine engines or jet-propulsion engines · CPC title

• H01R39/08

  Slip-rings · CPC title