High-speed snap ring and snap ring retention method

Patent metadata

Field	Value
Publication number	US-10458479-B2
Application number	US-201715627930-A
Country	US
Kind code	B2
Filing date	Jun 20, 2017
Priority date	Sep 28, 2015
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

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 method also includes securing a retaining member to the retaining ring. Securing a retaining member to the retaining ring includes advancing a portion of the retaining member towards the hub and deforming the portion relative to the retaining ring.

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; and
securing a retaining member to the retaining ring,
wherein securing the retaining member to the retaining ring includes advancing a portion of the retaining member towards the hub and deforming the portion relative to the retaining ring as a result of contact with the hub.

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

3. The method of claim 2 , wherein deforming the portion includes deflecting the portion toward the longitudinal axis as the portion is advanced into the recess of the hub.

4. The method of claim 2 , wherein deforming the portion includes deflecting the portion away from the longitudinal axis as the portion is advanced into the recess of the hub.

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

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

7. The method of claim 1 , wherein advancing a portion of the retaining member includes deforming the portion relative to the remainder of the retaining member.

8. A shaft assembly comprising:
a shaft defining a longitudinal axis and including a groove in an outer surface;
a hub positionable on the shaft;
a retaining ring positionable in the groove of the shaft and adjacent to the hub; and
a retaining member including a first portion and a second portion, the first portion and the second portion being positionable axially between the hub and the retaining ring and deformable to secure the retaining member to the retaining ring.

9. The shaft assembly of claim 8 , wherein the first and the second portion are deformable toward each other.

10. The shaft assembly of claim 8 , wherein the first sand the second portion are deformable away from each other.

11. The shaft assembly of claim 8 , wherein the hub includes a recess with a contact surface and wherein the first and the second portions of the retaining member are deformable upon contact with the contact surface, the contact surface being at an angle of between 20 degrees to 70 degrees relative to an axial face of the hub.

12. The shaft assembly of claim 11 , wherein the recess is one of concave, convex, or rectangular in cross-sectional shape.

13. The shaft assembly of claim 8 , wherein
the retaining ring includes 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
the retaining member defines an axis, the first portion being extendable through the first aperture and the second portion being extendable through the second aperture, the first and the second portions being positioned on opposite sides of an intermediate portion, the first and the second portions being deformable as a result of contact with the hub.

14. 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 advancing a first portion and a second portion of the retaining member into the recess of the hub and deforming the first portion and the second portion of the retaining member.

15. The method of claim 14 , wherein deforming the first portion and the second portion includes deflecting the first and the second portions.

16. The method of claim 14 , wherein machining the hub to create the recess includes creating a recess defining a contact surface that is at an angle of between 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

Inventors

• Allen Kevin M

Classifications

• Y10T403/49

  Member deformed in situ · CPC title

• F16B21/18

  with circlips or like resilient retaining devices, {i.e. resilient in the plane of the ring or the like}; Details (spring-washers for locking nuts F16B39/24; adjusting rings F16B43/00) · 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

• Y10T29/49922

  by bending over projecting prongs · CPC title

• F16B21/186

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