Entrance and exit chip rings for balancing broach forces

Patent metadata

Field	Value
Publication number	US-10399158-B2
Application number	US-201715687602-A
Country	US
Kind code	B2
Filing date	Aug 28, 2017
Priority date	Aug 28, 2017
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

Aspects of the disclosure are directed to a first chip ring that includes a first through slot, a second chip ring that includes a second through slot, and a component disposed between the first chip ring and the second chip ring that includes a component through slot, where the first, second and component through slots are coaxial along a slot axis this is oriented at a non-zero valued angle relative to a planar surface of the component facing at least one of the first and second chip rings.

First claim

What is claimed is:

1. A system comprising:
a first chip ring that includes a first through slot;
a second chip ring that includes a second through slot;
a component disposed between the first chip ring and the second chip ring, and that includes a component through slot, where the first, second and component through slots are coaxial along a slot axis this is oriented at a non-zero valued angle relative to a planar surface of the component facing at least one of the first and second chip rings,
wherein the first chip ring includes a first angular step in a first exterior surface of the first chip ring, the first exterior surface opposed to the component.

2. The system of claim 1 , wherein the first chip ring is made of iron.

3. The system of claim 2 , wherein the second chip ring is made of iron.

4. The system of claim 2 , wherein the component is made of at least one of titanium or nickel.

5. The system of claim 1 , wherein the second chip ring includes a second angular step in a second exterior surface of the second chip ring, the second exterior surface opposed to the component.

6. The system of claim 1 , wherein a planar surface of the first angular step is substantially perpendicular to the slot or hole axis.

7. The system of claim 1 , where sidewalls of the first, second and component through slots comprise one of a fir-tree and a dovetail profile.

8. The system of claim 1 , wherein the slot axis is oriented at an angle relative to a normal of the planar surface of the component.

9. The system of claim 8 , wherein the angle relative to the normal is between three and fifteen degrees.

10. The system of claim 7 , further comprising:
a broach tool that is applied to the first chip ring, the second chip ring, and the component to form the first, second and component through slot.

11. The system of claim 10 , wherein the broach tool includes a first plurality of teeth on a first side of the broach tool and a second plurality of teeth on a second side of the broach tool.

12. The system of claim 1 , wherein the component is one of a disk or a gear.

13. A method comprising:
coupling a first chip ring to a component with intimate contact between the first chip ring and the component;
applying a tooth of a broach tool to the first chip ring to form a first through slot;
applying the tooth of the broach tool to the component subsequent to applying the tooth of the broach tool to the first chip ring to form a component though slot in the component, where the first and component through slots are coaxial along a slot axis this is normal to a planar surface of the component facing the first chip ring; and
forming a first angular step in the first chip ring as a slanted ‘V’-shape in an exterior surface of the first chip ring, the exterior surface opposed to the component.

14. The method of claim 13 , wherein the first chip ring is coupled to the component using at least one of a fastener, a clamp, and an adhesive.

15. The method of claim 13 , wherein a planar surface of the first angular step is substantially perpendicular to the slot axis.

16. The method of claim 13 , further comprising:
applying the tooth of the broach tool to a second chip ring to form a second through slot subsequent to applying the tooth of the broach tool to the component, where the second through slot is coaxial with the first and component through slots, and where the component is disposed between the first chip ring and the second chip ring.

17. A system comprising:
a first chip ring that includes a first through slot;
a second chip ring that includes a second through slot;
a component disposed between the first chip ring and the second chip ring, and that includes a component through slot, where the first, second and component through slots are coaxial along a slot axis this is oriented at a non-zero valued angle relative to a planar surface of the component facing at least one of the first and second chip rings,
wherein the first chip ring is made of iron.

18. The system of claim 17 , wherein the first chip ring includes a first angular step in a first exterior surface of the first chip ring, the first exterior surface opposed to the component.

19. The system of claim 18 , wherein the second chip ring includes a second angular step in a second exterior surface of the second chip ring, the second exterior surface opposed to the component.

20. The system of claim 17 , where sidewalls of the first, second and component through slots comprise one of a fir-tree and a dovetail profile.

Assignees

• United Technologies Corp

Inventors

• Frisk Kenneth A
• Ali Stephen
• Noraas Ryan B
• Kountanya Raja
• Ketschke Lauren

Classifications

• F01D5/3007

  of axial insertion type · CPC title

• B23D37/22

  for special purposes (B23D37/14 takes precedence) · CPC title

• Y10T407/1685

  including sequentially acting teeth of stepped cutting width · CPC title

• F05D2220/32

  in gas turbines · CPC title

• F01D15/12

  Combinations with mechanical gearing (driven by multiple engines F01D13/00) · CPC title