Axle shaft transport retention spacer

Patent metadata

Field	Value
Publication number	US-2025313039-A1
Application number	US-202418626136-A
Country	US
Kind code	A1
Filing date	Apr 3, 2024
Priority date	Apr 3, 2024
Publication date	Oct 9, 2025
Grant date	—

Abstract

Described herein is an axle shaft transport retention spacer for use in an axle assembly of a vehicle. In one embodiment, the axle shaft transport retention spacer comprises a first portion and a second portion configured to be selectively coupled to each other, and a center bore that extends through the first portion and the second portion and that is configured to circumferentially surround an axle shaft.

First claim

1 . An axle shaft transport retention spacer, comprising:
a first portion and a second portion configured to be selectively coupled to each other; and a center bore that extends through the first portion and the second portion and that is configured to circumferentially surround an axle shaft.

2 . The axle shaft transport retention spacer of claim 1 , wherein the axle shaft transport retention spacer is formed of plastic, iron, or aluminum.

3 . The axle shaft transport retention spacer of claim 1 , wherein the axle shaft transport retention spacer is coated with a hub seal material and/or coating.

4 . The axle shaft transport retention spacer of claim 1 , wherein each of the first portion and the second portion include a plurality of through holes configured to retain fasteners.

5 . The axle shaft transport retention spacer of claim 1 , wherein the first portion and the second portion are identical.

6 . The axle shaft transport retention spacer of claim 1 , wherein the first portion comprises a series of sockets and the second portion comprises a series of pins configured to be selectively inserted into the series of sockets of the first portion to selective couple the first portion and the second portion.

7 . The axle shaft transport retention spacer of claim 1 , wherein the first portion comprises a first socket and a first pin, and the second portion comprises a second pin and a second socket configured to selectively mesh with the first socket and the first pin of the first portion, respectively, to selective couple the first portion and the second portion.

8 . The axle shaft transport retention spacer of claim 1 , further comprising a series of concave features about a circumference of the first portion and the second portion, the series of concave features extending towards the center bore of the axle shaft transport retention spacer.

9 . The axle shaft transport retention spacer of claim 1 , further comprising a series of coupling extensions extending from a face of the axle shaft transport retention spacer along an axis parallel to a center axis of the center bore.

10 . A method for vehicle transportation, comprising:
removing a first set of fasteners that selectively couple a flange of an axle shaft and a wheel hub; laterally translating the axle shaft in a first direction to disengage the axle shaft from a differential; positioning and selectively coupling a first portion and a second portion of an axle shaft transport retention spacer to circumferentially surround the axle shaft between the flange of the axle shaft and the wheel hub; laterally translate the axle shaft in a second direction, opposite the first direction, to position the flange of the axle shaft on the axle shaft transport retention spacer; and couple the axle shaft transport retention spacer to the flange of the axle shaft using the first set of fasteners.

11 . The method of claim 10 , wherein rotation of a wheel mounted on the wheel hub does not transfer rotation to the differential via the axle shaft.

12 . The method of claim 10 , wherein laterally translating the axle shaft away from the differential includes laterally translating the axle shaft to provide a gap between the differential and an end of the axle shaft opposite the flange of the axle shaft.

13 . The method of claim 10 , wherein selectively coupling the first portion and the second portion of the axle shaft transport retention spacer comprises selectively meshing a first socket and a first pin of the first portion with a second pin and a second socket of the second portion, respectively.

14 . The method of claim 10 , further comprising coupling the axle shaft transport retention spacer to the wheel hub via a second set of fasteners.

15 . The method of claim 10 , further comprising:
removing the first set of fasteners that selectively couple the axle shaft transport retention spacer to the flange of the axle shaft; laterally translating the axle shaft in the first direction to disengage the flange of the axle shaft from the axle shaft transport retention spacer; uncoupling and removing the first portion and the second portion of the axle shaft transport retention spacer from the axle shaft; laterally translating the axle shaft in the second direction to engage the axle shaft with the differential and with the wheel hub; and coupling the axle shaft to the wheel hub via the first set of fasteners.

16 . An axle assembly, comprising:
an axle shaft configured to translate along an axis between a first position and a second position; a wheel hub selectively coupled to the axle shaft; and an axle shaft spacer selectively coupled to the wheel hub and the axle shaft, wherein the axle shaft is configured to transfer torque to the wheel hub when in the first position and coupled to the wheel hub and wherein the axle shaft does not transfer torque to the wheel hub when in the second position and coupled to the axle shaft spacer.

17 . The axle assembly of claim 16 , wherein in the first position the axle shaft is engaged with a differential and in the second position the axle shaft is disengaged from the differential.

18 . The axle assembly of claim 16 , wherein the axle shaft spacer comprises:
a first portion of the axle shaft spacer and a second portion of the axle shaft spacer, where the first portion and the second portion are configured to be selectively coupled to each other; and a center bore that extends through the first portion and the second portion and is configured to circumferentially surround the axle shaft.

19 . The axle assembly of claim 16 , wherein the axle shaft spacer is coupled to the axle shaft at a flange of the axle shaft via a first set of fasteners and the axle shaft spacer is coupled to the wheel hub via bolts of the wheel hub, wherein the first set of fasteners couple the wheel hub to the axle shaft when the axle shaft is in the first position.

20 . The axle assembly of claim 19 , wherein the first set of fasteners include one or more bolts, studs, and nuts.

Assignees

• Dana Heavy Vehicle Sys Group

Inventors

• Slesinski Steven G
• Kielar Stan

Classifications

• B60B35/14

  composite or split, e.g. half- axles; Couplings between axle parts or sections · CPC title

• B60B2900/541

  Servicing · CPC title

• B60B35/004 Primary

  Mounting arrangements for axles · CPC title

• B60B2900/531

  User-friendliness · CPC title

• B60B37/00 Primary

  Wheel-axle combinations, e.g. wheel sets (units comprising multiple wheels arranged side-by-side B60B11/00; rail vehicle axle-boxes B61F) · CPC title