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CN-121993504-A - Constant velocity joint assembly

CN121993504ACN 121993504 ACN121993504 ACN 121993504ACN-121993504-A

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 shaft, a first inner race connected to the first shaft, a first outer race accommodating the first inner race, and a first ball disposed between the first inner race and the first outer race, a second constant velocity joint disposed opposite the first constant velocity joint and including a second shaft, a second inner race connected to the second shaft, a second outer race accommodating the second inner race, and a second ball disposed between the second inner race and the second outer race, and a connector including a plate-shaped portion disposed between the first outer race and the second outer race, a first connecting portion engaged with an end portion of the first shaft having a portion directly contacting the first connecting portion and formed in a spherical shape during a hinge motion, and a second connecting portion engaged with an end portion of the second shaft. The constant velocity joint assembly satisfies the following parameter relationship 1.005A/B≤1.020, wherein A represents an inner diameter of the first connecting portion and B represents a diameter of the spherical portion of the end portion of the first shaft.

Inventors

  • Xuan Zhongxian

Assignees

  • 现代威亚株式会社

Dates

Publication Date
20260508
Application Date
20251104
Priority Date
20241108

Claims (10)

  1. 1. A constant velocity joint assembly comprising: a first constant velocity joint including a first shaft, a first inner race connected with the first shaft, a first outer race received in the first outer race, and a first ball disposed between the first inner race and the first outer race; A second constant velocity joint disposed opposite the first constant velocity joint, the second constant velocity joint including a second shaft, a second inner race connected to the second shaft, a second outer race received in the second outer race, and a second ball disposed between the second inner race and the second outer race, an A connection including a plate-like 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, and a second connection portion configured to allow an end portion of the second shaft to engage therewith, Wherein the end portion of the first shaft has a portion that is in direct contact with the first connecting portion during the hinge motion, and the portion that is in direct contact with the first connecting portion is formed in a spherical shape, and Wherein the constant velocity joint assembly satisfies the following parameter relationship: 1.005≤A/B≤1.020 Wherein a represents an inner diameter of the first connection portion, and B represents a diameter of a spherical portion of the end portion of the first shaft.
  2. 2. A constant velocity joint assembly according to claim 1, 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 further satisfies the following parameter relationship: 1.005≤C/D≤1.020 Wherein C represents an inner diameter of the second connecting portion, and D represents a diameter of the spherical portion of the end portion of the second shaft.
  3. 3. A constant velocity joint assembly according to claim 1, 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 further satisfies the following parameter relationship: 0.2≤E/F≤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, and F represents a Pitch Circle Diameter (PCD) of the first constant velocity joint.
  4. 4. A constant velocity joint assembly according to claim 3, wherein the constant velocity joint assembly further satisfies the following parameter relationship: 0.2≤E/G≤0.3 wherein G represents a pitch diameter (PCD) of the second constant velocity joint.
  5. 5. The constant velocity joint assembly according to claim 1, wherein the constant velocity joint assembly further satisfies the following parameter relationship: 1.0≤H/F≤1.1 Wherein F represents a Pitch Circle Diameter (PCD) of the first 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.
  6. 6. The constant velocity joint assembly according to claim 5, wherein the constant velocity joint assembly further satisfies the following parameter relationship: 1.0≤H/G≤1.1 wherein G represents a pitch diameter (PCD) of the second constant velocity joint.
  7. 7. The constant velocity joint assembly according to claim 1, wherein a distance between a hinge center of the first constant velocity joint and a center of the plate-like portion of the joint is different from a distance between a hinge center of the second constant velocity joint and a center of the plate-like portion of the joint.
  8. 8. The constant velocity joint assembly according to claim 1, wherein one of the first constant velocity joint and the second constant velocity joint is implemented as a sliding constant velocity joint and the other of the first constant velocity joint and the second constant velocity joint is implemented as a fixed constant velocity joint.
  9. 9. A constant velocity joint assembly according to claim 1, wherein the first outer race and the second outer race are connected to each other using welding.
  10. 10. A constant velocity joint assembly according to claim 1, wherein the first outer race and the second outer race are connected to each other using a bolted connection.

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 An aspect of the present disclosure is to provide a constant velocity joint assembly capable of improving strength and durability of components and reducing an outer diameter, weight, and cost of a product. A constant velocity joint assembly according to the present disclosure includes a first constant velocity joint including a first shaft, a first inner race, a first outer race and first balls, the first inner race being connected with the first shaft, the first inner race being received in the first outer race, the first balls being disposed between the first inner race and the first outer race, a second constant velocity joint disposed opposite the first constant velocity joint, the second constant velocity joint including a second shaft, a second inner race, a second outer race and second balls, the second inner race being connected with the second shaft, the second inner race being received in the second outer race, the second balls being disposed between the second inner race and the second outer race, and a connector including a plate portion disposed between the first and second outer races, a first connecting portion disposed between the first and second outer races, and a second connecting portion engaged with the first shaft end portion. The end portion of the first shaft has a portion that is in direct contact with the first connection portion during the hinge motion and is formed in a spherical shape. The constant velocity joint assembly satisfies the following parameter relationship. 1.005≤A/B≤1.020 Here, a denotes an inner diameter of the first connecting portion, and B denotes a diameter of the spherical portion of the end portion of the first shaft. The end portion of the second shaft may have a portion that is in direct contact with the second connection portion during the hinge motion and is formed in a spherical shape, and the constant velocity joint assembly may also satisfy the following parameter relationship. 1.005≤C/D≤1.020 Here, C represents the inner diameter of the second connecting portion, and D represents the diameter of the spherical portion of the end portion of the second shaft. The end portion of the second shaft may have a portion that is in direct contact with the second connecting portion and formed in a spherical shape during articulation, and the constant velocity joint assembly may also satisfy the following parameter relationship. 0.2≤E/F≤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, and F represents a pitch circle diameter (PCD, PITCH CIRCLE DIAMETER) of the first constant velocity universal joint. The constant velocity joint assembly may also satisfy the following parameter relationships. 0.2≤E/G≤0.3 Here, G represents the Pitch Circle Diameter (PCD) of the second constant velocity joint. The constant velocity joint assembly may also satisfy the following parameter relationships. 1.0≤H/F≤1.1 Here, F represents a Pitch Circle Diameter (PCD) of the first constant velocity universal joint, and H represents a distance between a hinge center of the first constant velocity universal joint and a hinge center of the second constant velocity universal joint. The constant velocity joint assembly may also satisfy the following parameter relationships. 1.0≤H/G≤1.1 Here, G represents the Pitch Circle Diameter (PCD) of the second constant velocity joint. The distance between the articulation center of the first constant velocity joint and the center of the plate-like portion of the connection may be different from the distance between the articulation center of the second constant velocity joint and the center of the plate-like portion of the connection. One of the first constant velocity joint and the second constant velocity joint may be implemented as a plunging constant velocity joint, and the other of the first constant velocity joint and the second constant velocity joint may be implemented as a fixed constant velocity joint. The first outer race and the second outer race may be connected to each other using welding. The first outer race and the second outer race may be connected to each other using a bolted connection. Drawings The drawings incorporated in the present specification illustrate exemplary embodiments, and serve to further illustrate the technical ideas of the present disclosure in conn