High-speed snap ring and snap ring retention method

Patent metadata

Field	Value
Publication number	US-9714681-B2
Application number	US-201514868028-A
Country	US
Kind code	B2
Filing date	Sep 28, 2015
Priority date	Sep 28, 2015
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

A method of assembling a shaft assembly having a shaft defining a longitudinal axis and including a groove in an outer circumferential surface includes positioning a hub relative to the shaft and positioning a retaining ring in the groove of the shaft and adjacent to the hub. The retaining ring includes an annular body that has a first end spaced apart from a second end. The method also includes securing a retaining member to the retaining ring to constrain the first end relative to the second end.

First claim

What is claimed is:

1. A method of assembling a shaft assembly, the shaft assembly including a shaft defining a longitudinal axis and including a groove in an outer circumferential surface, the method comprising:
positioning a hub relative to the shaft;
positioning a retaining ring in the groove of the shaft and adjacent to the hub, the retaining ring including an annular body that has a first end spaced apart from a second end and defines an opening with an inner diameter, the first end including a first aperture and the second end including a second aperture; and
inserting a first portion of a retaining member through the first aperture and a second portion of the retaining member through the second aperture, the first portion connected to the second portion through an intermediate portion of the retaining member; and
deforming at least one of the first portion or the second portion to secure the retaining member relative to the retaining ring.

2. The method of claim 1 , further comprising machining the hub to create a recess.

3. The method of claim 2 , wherein deforming at least one of the first portion or the second portion includes deflecting at least one of the first portion or the second portion toward the intermediate portion as the first and the second portions are advanced into the recess of the hub.

4. The method of claim 2 , wherein deforming at least one of the first portion or the second portion includes deflecting at least one of the first portion or the second portion away from the intermediate portion as the first and the second portions are advanced into the recess of the hub.

5. The method of claim 2 , wherein deforming at least one of the first portion or the second portion includes shortening and thickening at least one of the first portion or the second portion as the first and the second portions are advanced into the recess of the hub.

6. The method of claim 2 , wherein machining the hub to create a recess includes creating a recess defining a contact surface that is at an angle of 20 degrees and 70 degrees relative to an axial face of the hub.

7. The method of claim 2 , wherein machining the hub to create a recess includes creating one of a concave, a convex, or a rectangular recess.

8. The method of claim 1 , wherein deforming at least one of the first portion or the second portion includes manually deflecting or distorting at least one of the first portion or the second portion.

9. A shaft assembly comprising:
a shaft defining a longitudinal axis and including a groove in an outer surface;
a hub positioned on the shaft;
a retaining ring positioned in the groove of the shaft and adjacent to the hub, the retaining ring including an annular body that has a first end spaced apart from a second end and that defines an opening with an inner diameter, the first end including a first aperture and the second end including a second aperture; and
a retaining member secured to the retaining ring and defining an axis, the retaining member having a first portion that extends through the first aperture and a second portion that extends through the second aperture, the first and the second portions being coupled on opposite sides of an intermediate portion, the first and the second portions being deformed as a result of contact with the hub.

10. The shaft assembly of claim 9 , wherein the first and the second portion are deformed toward each other.

11. The shaft assembly of claim 9 , wherein the first and the second portion are deformed away from each other.

12. The shaft assembly of claim 9 , wherein the first and the second portion are shorter and thicker after contact with the hub than before contact with the hub.

13. The shaft assembly of claim 9 , wherein the retaining member is configured to maintain a distance between the first end and the second end of the retaining ring.

14. The shaft assembly of claim 9 , wherein the hub includes a recess with a contact surface and wherein the first and the second portions of the retaining member deform upon contact with the contact surface, the contact surface being at an angle of 20 degrees to 70 degrees relative to an axial face of the hub.

15. The shaft assembly of claim 14 , wherein the recess is one of concave, convex, or rectangular in cross-sectional shape.

16. A method of assembling a shaft assembly, the shaft assembly including a shaft defining a longitudinal axis and including a groove in an outer surface, the method comprising:
machining a hub to create a recess in an outer surface thereof;
positioning the hub relative to the shaft;
positioning a retaining ring in the groove of the shaft and adjacent to the hub, the retaining ring including an annular body that has a first end spaced apart from a second end and that defines an opening with an inner diameter; and
securing a retaining member to the retaining ring to constrain the first end relative to the second end, wherein securing the retaining member to the retaining ring includes
inserting a first portion of a retaining member through the first aperture and a second portion of the retaining member through the second aperture, the first portion connected to the second portion through an intermediate portion of the retaining member extending between the first portion and the second portion, the intermediate portion extending between the first end and the second end, and
deforming the first portion and the second portion to secure the retaining member relative to the retaining ring.

17. The method of claim 16 , wherein deforming the first portion and the second portion includes deflecting the first and the second portions toward the intermediate portion as the first and the second portions are advanced into the recess of the hub.

18. The method of claim 16 , wherein deforming the first portion and the second portion includes deflecting the first and the second portions away from the intermediate portion as the first and the second portions are advanced into the recess of the hub.

19. The method of claim 16 , wherein machining the hub to create a recess includes creating a recess defining a contact surface that is at an angle of 30 degrees to 60 degrees relative to an axial face of the hub, the recess being one of concave, convex, or rectangular.

Assignees

• Deere & Co
• Deere & Co

Inventors

• Allen Kevin M

Classifications

• F16D1/06 Primary

  for attachment of a member on a shaft or on a shaft-end (attachment of marine propellers on shafts B63H23/34) · CPC title

• Y10T403/49

  Member deformed in situ · CPC title

• F16D1/116

  the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts (circlips for retaining hubs on shafts F16B21/18) · CPC title

• F16B21/186

  external, i.e. with contracting action · CPC title

• Y10T29/49922

  by bending over projecting prongs · CPC title