Joint assembly having a piloting cover for centering a mating flange relative to an outer race of a continuous velocity joint

Patent metadata

Field	Value
Publication number	US-2021102581-A1
Application number	US-201916590596-A
Country	US
Kind code	A1
Filing date	Oct 2, 2019
Priority date	Oct 2, 2019
Publication date	Apr 8, 2021
Grant date	—

Abstract

A joint assembly for connecting a first rotating part and a second rotating part. The joint assembly includes a constant velocity joint that has an inner race for being connected to the first rotating part and an outer race that is pivotable relative to the outer race. A mating flange couples the outer race to the second rotating part. The outer race and the mating flange each have a radially inner surface. A piloting cover is positioned axially between the outer race and the mating flange and radially supports the radially inner surface of the outer race at a first pilot point, and radially supports the radially inner surface of the mating flange at a second pilot point for centering the outer race relative to the mating flange. The first and second pilot points are located radially inwardly of a bolt circle diameter.

First claim

What is claimed is:

1 . A joint assembly for connecting a first rotating part and a second rotating part, the joint assembly comprising:
a constant velocity joint including an inner race for being connected to the first rotating part and an outer race being pivotable relative to the inner race; a mating flange coupled with the outer race for being coupled with the second rotating part; the outer race and the mating flange each having a radially inner surface; and a piloting cover positioned axially between the outer race and the mating flange and radially supporting the radially inner surface of the outer race at a first pilot point and radially supporting the radially inner surface of the mating flange at a second pilot point for centering the outer race relative to the mating flange.

2 . The joint assembly as set forth in claim 1 wherein the outer race, the piloting cover and the mating flange define a plurality of bolt channels each extending axially and spaced circumferentially from one another for receiving a plurality of bolts and securing the outer race, the piloting cover and the mating flange to one another; wherein the bolt channels define a bolt circle diameter; and wherein the first and second pilot points are located radially inwardly of the bolt circle diameter.

3 . The joint assembly as set forth in claim 1 further including a retaining cover fixing the piloting cover to the outer race.

4 . The joint assembly as set forth in claim 3 wherein the piloting cover is comprised of a non-stamped material, and wherein the retaining cover is comprised of a stamped material.

5 . The joint assembly as set forth in claim 3 wherein the outer race defines at least one first crimp groove, the piloting cover defines at least one second groove, and wherein the retaining cover is crimped into the first crimp groove of the outer race and received in the second groove of the piloting cover for retaining the cover to the outer race.

6 . The joint assembly as set forth in claim 5 wherein the bolt channels are further defined by the retaining cover.

7 . The joint assembly as set forth in claim 1 wherein the outer race and the mating flange each have a radial outer surface, and wherein the radial outer surface of the mating flange terminates at a point that is radially equal to or radially inward of the outer race.

8 . The joint assembly as set forth in claim 1 wherein the piloting cover has a body including a first ledge extending axially and a second ledge extending axially in an opposite direction as the first ledge, wherein the first ledge radially supports the radially inner surface of the outer race to define the first pilot point, and wherein the second ledge radially supports the radially inner surface of the mating flange to define the second pilot point.

9 . The joint assembly as set forth in claim 8 wherein the outer race defines a first shoulder extending radially inwardly at the second end of the outer race, and wherein the first ledge of the piloting cover engages the shoulder to define the first pilot point.

10 . The joint assembly as set forth in claim 8 wherein the mating flange defines a second shoulder extending radially therein, and wherein the second ledge of the piloting cover engages the shoulder to define the second pilot point.

11 . The joint assembly as set forth in claim 1 wherein the piloting cover is comprised of a non-stamped material.

12 . A joint assembly for coupling and transmitting torque between a first rotating shaft and a second rotating shaft of an automobile, comprising:
a constant velocity joint including an outer race defining a compartment and extending about and along an axis between a pair of axial ends, and an inner race received in the compartment of the outer race and pivotable relative to the outer race; a mating flange coupled with one of the axial ends of the outer race for being connected to the second rotating shaft; the outer race and the mating flange each having a radially inner surface; and a piloting cover positioned axially between the outer race and the mating flange and radially supporting the radially inner surface of the outer race at a first pilot point and radially supporting the radially inner surface of the mating flange at a second pilot point for radially centering the outer race relative to the mating flange.

13 . The joint assembly as set forth in claim 12 wherein the outer race, the piloting cover and the mating flange define a plurality of bolt channels each extending axially and spaced circumferentially from one another for receiving a plurality of bolts for securing the outer race, the piloting cover and the mating flange to one another; wherein the bolt channels define a bolt circle diameter; and wherein the first and second pilot points are located radially inwardly of the bolt circle diameter.

14 . The joint assembly as set forth in claim 12 further including a retaining cover fixing the piloting cover to the outer race.

15 . The joint assembly as set forth in claim 14 wherein the piloting cover is comprised of a non-stamped material, and wherein the retaining cover is comprised of a stamped material.

16 . The joint assembly as set forth in claim 14 wherein the outer race defines at least one first crimp groove, the piloting cover defines at least one second groove, and wherein the retaining cover is crimped into the first crimp groove of the outer race and received in the second groove of the piloting cover for retaining the cover to the outer race.

17 . The joint assembly as set forth in claim 16 wherein the bolt channels are further defined by the retaining cover.

18 . The joint assembly as set forth in claim 12 wherein the outer race and the mating flange each have a radial outer surface, and wherein the radial outer surface of the mating flange extends to a point that is radially equal to or radially inward of the outer race.

19 . The joint assembly as set forth in claim 12 wherein the piloting cover includes a body defining a first ledge extending axially and a second ledge extending axially in an opposite direction as the first ledge, wherein the first ledge radially supports the radially inner surface of the outer race to define the first pilot point, and wherein the second ledge radially supports the radially inner surface of the mating flange to define the second pilot point.

20 . The joint assembly as set forth in claim 19 wherein the outer race defines a first shoulder extending radially inwardly at the second end of the outer race; wherein the first ledge of the piloting cover engages the shoulder to define the first pilot point; wherein the mating flange defines a second shoulder extending radially therein; and wherein the second ledge of the piloting cover engages the shoulder to define the second pilot point.

Assignees

• Neapco Intellectual Property Holdings Llc

Inventors

• Hopson Michael
• Patel Riki

Classifications

• Y10S464/906

  Torque transmitted via radially spaced balls · CPC title

• F16D2003/22326

  Attachments to the outer joint member, i.e. attachments to the exterior of the outer joint member or to the shaft of the outer joint member · CPC title

• F16D1/076

  by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges · CPC title

• F16D3/2265 Primary

  the joints being non-telescopic · CPC title