CN-122014760-A - Constant velocity joint assembly

Abstract

The present disclosure relates to a constant velocity joint assembly. The constant velocity joint assembly includes a first constant velocity joint including a first outer race having a through hole formed therein, a second constant velocity joint including a second outer race having a through hole formed therein, a second outer race including a plate portion disposed between the first outer race and the second outer race, a first connection portion configured to allow an end portion of the first shaft to engage therewith through the through hole in the first outer race, and a second connection portion configured to allow an end portion of the second shaft to engage therewith through the through hole in the second outer race, and a first retainer disposed within the through hole in the second outer race to prevent displacement of the connection member toward the second constant velocity joint.

Inventors

• Xuan Zhongxian

Assignees

• 现代威亚株式会社

Dates

Publication Date

20260512

Application Date

20251104

Priority Date

20241108

Claims (13)

1. 1. A constant velocity joint assembly comprising: A first constant velocity joint including a first outer race having a through hole formed therein and a first shaft; A second constant velocity joint including a second outer race and a second shaft, the second outer race having a through-bore formed therein; a connection including a plate portion disposed between the first outer race and the second outer race, a first connection portion configured to allow an end portion of the first shaft to engage therewith through the through-hole in the first outer race, and a second connection portion configured to allow an end portion of the second shaft to engage therewith through the through-hole in the second outer race, and A first retainer disposed within the through bore in the second outer race to prevent displacement of the connection toward the second constant velocity joint.
2. 2. A constant velocity joint assembly according to claim 1, wherein the outer diameter of the plate-like portion is smaller than or equal to the diameter of the through hole in the second outer race.
3. 3. A constant velocity joint assembly according to claim 1, wherein the first holder is formed in a ring shape.
4. 4. A constant velocity joint assembly according to claim 3, wherein the inner diameter of the first holder is smaller than the outer diameter of the plate-like portion.
5. 5. A constant velocity joint assembly according to claim 3, wherein the outer diameter of the first holder is equal to the diameter of the through bore in the second outer race.
6. 6. A constant velocity joint assembly according to claim 1, wherein the outer diameter of the plate-like portion is greater than the diameter of the through hole in the first outer race.
7. 7. The constant velocity joint assembly according to claim 1, further comprising a first snap ring fastened to an inner peripheral surface of the through hole in the second outer race to fix the first holder.
8. 8. The constant velocity joint assembly according to claim 1, further comprising a second retainer disposed within a through bore in the first outer race to prevent the joint from shifting.
9. 9. The constant velocity joint assembly according to claim 8, further comprising a second snap ring fastened to an inner peripheral surface of the through hole in the first outer race to fix the second retainer.
10. 10. A constant velocity joint assembly according to claim 1, wherein the first outer race and the second outer race are integrally formed with each other.
11. 11. The constant velocity joint assembly according to claim 1, wherein the first constant velocity joint further comprises a first inner race connected to the first shaft and disposed within the first outer race, and a first ball disposed between the first inner race and the first outer race, Wherein the second constant velocity joint further comprises a second inner race connected to the second shaft and disposed within the second outer race, and a second ball disposed between the second inner race and the second outer race, Wherein the end portion of the first shaft has a portion that directly contacts the first connection portion during the hinge motion, and the portion that directly contacts the first connection portion is formed in a spherical shape, Wherein the end portion of the second shaft has a portion that is in direct contact with the second connecting portion during the hinge motion, and the portion that is in direct contact with the second connecting portion is formed in a spherical shape, and Wherein the constant velocity joint assembly satisfies at least one of the following parameter relationships: 1.005≤A/B≤1.020 1.005≤C/D≤1.020 Wherein a represents an inner diameter of the first connecting portion, B represents a diameter of a spherical portion of the end portion of the first shaft, C represents an inner diameter of the second connecting portion, and D represents a diameter of a spherical portion of the end portion of the second shaft.
12. 12. The constant velocity joint assembly according to claim 11, wherein the constant velocity joint assembly further satisfies at least one of the following parameter relationships: 0.2≤E/F≤0.3 0.2≤E/G≤0.3 Wherein E represents a distance between a center of the spherical portion of the end portion of the first shaft and a center of the spherical portion of the end portion of the second shaft, F represents a Pitch Circle Diameter (PCD) of the first constant velocity universal joint, and G represents a Pitch Circle Diameter (PCD) of the second constant velocity universal joint.
13. 13. The constant velocity joint assembly according to claim 11, wherein the constant velocity joint assembly further satisfies at least one of the following parameter relationships: 1.0≤H/F≤1.1 1.0≤H/G≤1.1 Wherein F represents a Pitch Circle Diameter (PCD) of the first constant velocity universal joint, G represents a Pitch Circle Diameter (PCD) of the second constant velocity universal joint, and H represents a distance between a center of articulation of the first constant velocity universal joint and a center of articulation of the second constant velocity universal joint.

Description

Constant velocity joint assembly Technical Field The present disclosure relates to a constant velocity joint assembly. Background Constant velocity joints are used to transmit rotational power between a drive shaft and a driven shaft disposed at an angle relative to the drive shaft without changing the angular velocity. In order to achieve a higher articulation angle, a structure combining two constant velocity joints has been proposed. Such a structure is disclosed, for example, in U.S. patent No.3,017,755. Disclosure of Invention One aspect of the present disclosure is to provide a constant velocity joint assembly that includes two constant velocity joints and a joint and facilitates mounting of the joint. Another aspect of the present disclosure is to provide a constant velocity joint assembly capable of improving the overall strength of an outer race. A constant velocity joint assembly according to the present disclosure includes a first constant velocity joint including a first outer race having a through hole formed therein and a first shaft, a second constant velocity joint including a second outer race and a second shaft having a through hole formed therein, a connector including a plate-like portion disposed between the first outer race and the second outer race, a first connecting portion configured to allow an end portion of the first shaft to be engaged therewith through the through hole in the first outer race, and a second connecting portion configured to allow an end portion of the second shaft to be engaged therewith through the through hole in the second outer race, and a first holder disposed within the through hole in the second outer race to prevent the connector from being displaced toward the second constant velocity joint. The outer diameter of the plate-like portion may be smaller than or equal to the diameter of the through hole in the second outer race. The first holder may be formed in a ring shape. The first holder may have an inner diameter smaller than an outer diameter of the plate-like portion. The outer diameter of the first retainer may be less than or equal to the diameter of the through bore in the second outer race. The outer diameter of the plate-like portion may be larger than the diameter of the through hole in the first outer race. The constant velocity joint assembly may further include a first snap ring fastened to an inner peripheral surface of the through hole in the second outer race to fix the first holder. The constant velocity joint assembly may further include a second retainer disposed within the through bore in the first outer race to prevent the joint from shifting. The constant velocity joint assembly may further include a second snap ring fastened to an inner peripheral surface of the through hole in the first outer race to fix a second retainer. The first outer race and the second outer race may be integrally formed with each other. The first constant velocity joint may further include a first inner race connected to the first shaft and disposed within the first outer race, and a first ball disposed between the first inner race and the first outer race, and the second constant velocity joint may further include a second inner race connected to the second shaft and disposed within the second outer race, and a second ball disposed between the second inner race and the second outer race. The end portion of the first shaft may have a portion that is in direct contact with the first connection portion and formed in a spherical shape during the hinge motion, and the end portion of the second shaft may have a portion that is in direct contact with the second connection portion and formed in a spherical shape during the hinge motion. The constant velocity joint assembly may satisfy at least one of the following parameter relationships. 1.005≤A/B≤1.020 1.005≤C/D≤1.020 Here, a represents an inner diameter of the first connection portion, B represents a diameter of the spherical portion of the end portion of the first shaft, C represents an inner diameter of the second connection portion, and D represents a diameter of the spherical portion of the end portion of the second shaft. The constant velocity joint assembly may also satisfy at least one of the following parameter relationships. 0.2≤E/F≤0.3 0.2≤E/G≤0.3 Here, E represents a distance between a center of the spherical portion of the end portion of the first shaft and a center of the spherical portion of the end portion of the second shaft, F represents a pitch circle diameter (PCD, PITCH CIRCLE DIAMETER) of the first constant velocity universal joint, and G represents a Pitch Circle Diameter (PCD) of the second constant velocity universal joint. The constant velocity joint assembly may also satisfy at least one of the following parameter relationships. 1.0≤H/F≤1.1 1.0≤H/G≤1.1 Here, F represents a Pitch Circle Diameter (PCD) of the first constant velocity universal joint, G represents a Pitch Circle Diameter