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DE-102025146046-A1 - constant velocity joint arrangement

DE102025146046A1DE 102025146046 A1DE102025146046 A1DE 102025146046A1DE-102025146046-A1

Abstract

The invention relates to a constant velocity joint assembly comprising: a first constant velocity joint with a first shaft, a first inner race connected to the first shaft, a first outer race receiving the first inner race, and a first ball arranged between the first inner race and the first outer race; a second constant velocity joint arranged opposite the first constant velocity joint, comprising a second shaft, an inner race connected to the second shaft, a second outer race receiving the second inner race, and a second ball arranged between the second inner race and the second outer race; and a connecting element with a plate-shaped region arranged between the first outer and the second outer race, a first coupling section engaging with an end section of the first shaft, and a second coupling section engaging with an end section of the second shaft. A region of the end section of the first shaft is spherical. The constant velocity joint assembly satisfies the following parameter relationship: 1,005 ≤ A / B ≤ 1 ,020 , with A for the inner diameter of the first coupling section and B for the diameter of the spherical area of the end section of the first shaft.

Inventors

  • Chung Heon Hyun

Assignees

  • Hyundai Wia Corporation

Dates

Publication Date
20260513
Application Date
20251107
Priority Date
20241108

Claims (10)

  1. Constant velocity joint assembly comprising: a first constant velocity joint with a first shaft, a first inner race connected to the first shaft, a first outer race receiving the first inner race, and a first ball arranged between the first inner race and the first outer race; a second constant velocity joint arranged opposite the first constant velocity joint, with a second shaft, a second inner race connected to the second shaft, a second outer race receiving the second inner race, and a second ball arranged between the second inner race and the second outer race; and a connecting element comprising a plate-shaped area arranged between the first outer race and the second outer race, a first coupling section configured to allow an end section of the first shaft to engage with the coupling area, and a second coupling section configured to allow an end section of the second shaft to engage with the coupling area, wherein the end section of the first shaft has an area that is in direct contact with the first coupling section during joint movement, and wherein the area in direct contact with the first coupling section is spherical or ball-shaped, and wherein the constant velocity joint arrangement satisfies a parameter relationship as follows: 1,005 ≤ A / B ≤ 1 ,020 , where A represents an inner diameter of the first coupling section and B represents a diameter of the spherical or ball-shaped area of the end section of the first shaft.
  2. constant velocity joint arrangement according to Claim 1 , wherein the end section of the second shaft has a region which is in direct contact with the second coupling section during the joint movement, and wherein the region which is in direct contact with the second coupling section is spherical or ball-shaped, and wherein the constant velocity joint arrangement further satisfies a parameter relationship as follows: 1,005 ≤ C / D ≤ 1 ,020 , where C represents an inner diameter of the second coupling section and D represents a diameter of the spherical or ball-shaped area of the end section of the second shaft.
  3. constant velocity joint arrangement according to Claim 1 , wherein the end section of the second shaft has a region which is in direct contact with the second coupling section during the joint movement, and wherein the region which is in direct contact with the second coupling section is spherical or ball-shaped, and wherein the constant velocity joint arrangement further satisfies a parameter relationship as follows: 0,2 ≤ E / F ≤ 0 ,3 , where E represents a distance between the center of the spherical or spherical region of the end section of the first shaft and the center of the spherical or spherical region of the end section of the second shaft, and F represents a pitch circle diameter (PCD) of the first constant velocity joint.
  4. constant velocity joint arrangement according to Claim 3 , which furthermore satisfies the following parameter relationship: 0,2 ≤ E / G ≤ 0 ,3 , where G represents a pitch circle diameter (PCD) of the second constant velocity joint.
  5. constant velocity joint arrangement according to Claim 1 , which furthermore satisfies the following parameter relationship: 1,0 ≤ H / F ≤ 1 ,1 , where F represents a pitch circle diameter (PCD) of the second constant velocity joint and H represents a distance between a joint center of the first constant velocity joint and a joint center of the second constant velocity joint.
  6. constant velocity joint arrangement according to Claim 5 , which furthermore satisfies the following parameter relationship: 1,0 ≤ H / G ≤ 1 ,1 , where G represents a pitch circle diameter (PCD) of the second constant velocity joint.
  7. constant velocity joint arrangement according to Claim 1 , wherein the distance between a joint center of the first constant velocity joint and the center of the plate-shaped area of the connecting link differs from the distance between a joint center of the second constant velocity joint and the center of the plate-shaped area of the connecting link.
  8. constant velocity joint arrangement according to Claim 1 , wherein one of the first constant velocity joint and the second constant velocity joint is designed as a sliding constant velocity joint and one remaining of the first constant velocity joint and the second constant velocity joint is designed as a fixed constant velocity joint.
  9. constant velocity joint arrangement according to Claim 1 , wherein the first outer running ring and the second outer running ring are welded together.
  10. constant velocity joint arrangement according to Claim 1 , wherein the first outer running ring and the second outer running ring are screwed together.

Description

BACKGROUND 1. Field of the invention The present invention relates to a constant velocity joint arrangement. 2. Description of the state of the art A constant velocity joint is used to transmit a rotational force between a drive shaft and a driven shaft that are arranged at an angle to each other, without changing the angular velocity. To achieve a larger articulation angle, a design with two combined constant velocity joints has been proposed. Such a design is used, for example, in the US Patent No. 3,017,755 described. BRIEF DESCRIPTION OF THE INVENTION One aspect of the present invention is the provision of a constant velocity joint arrangement suitable for improving the strength and durability of the components and for reducing the outer diameter, weight and product costs. A constant velocity joint assembly according to the present invention comprises a first constant velocity joint with a first shaft, a first inner race connected or coupled to the first shaft, a first outer race for receiving the first inner race, and a first ball arranged between the first inner race and the first outer race; a second constant velocity joint arranged opposite the first constant velocity joint with a second shaft, a second inner race connected or coupled to the second shaft, a second outer race for receiving the second inner race, and a second ball arranged between the second inner race and the second outer race; a connecting element with a plate-shaped region arranged between the first outer race and the second outer race; a first coupling section engaging with an end section of the first shaft; and a second coupling section engaging with an end section of the second shaft. The end section of the first shaft has a region that is in direct contact with the first coupling section during joint movement and that is spherical or ball-shaped. The constant velocity joint arrangement fulfills the following parameter relationship. 1,005≤A/B≤1,020 Here, A represents the inner diameter of the first coupling section and B represents the diameter of the spherical or ball-shaped area of the end section of the first shaft. The end section of the second shaft can have a region that is in direct contact with the second coupling section during joint movement and that is spherical or ball-shaped, the constant velocity joint arrangement can further satisfy the following parameter relationship. 1,005≤C/D≤1,020 Here, C represents the inner diameter of the second coupling section and D represents the diameter of the spherical or ball-shaped area of the end section of the second shaft. The end section of the second shaft can have a region that is in direct contact with the second coupling section during joint movement and that is spherical or ball-shaped, the constant velocity joint arrangement can further satisfy the following parameter relationship. 0,2≤E/F≤0,3 Here, E represents a distance between the center of the spherical or ball-shaped area of the end section of the first shaft and the center of the spherical or ball-shaped area of the end section of the second shaft, and F represents the pitch circle diameter (PCD) of the first constant velocity joint. The constant velocity joint arrangement can also satisfy the following parameter relationship. 0,2≤E/G≤0,3 Here, G stands for the pitch circle diameter (PCD) of the second constant velocity joint. The constant velocity joint arrangement can also satisfy the following parameter relationship. 1,0≤H/F≤1,1 Here, F represents the pitch circle diameter (PCD) of the first constant velocity joint and H represents a distance between the joint center of the first ten constant velocity joints and the joint center of the second constant velocity joint. The constant velocity joint arrangement can also satisfy the following parameter relationship. 1,0≤H/G≤1,1 Here, G stands for the pitch circle diameter (PCD) of the second constant velocity joint. The distance between the joint center of the first constant velocity joint and the center of the plate-shaped area of the connecting link may differ from the distance between the joint center of the second constant velocity joint and the center of the plate-shaped area of the connecting link. One of the first constant velocity joints and the second constant velocity joint can be designed as a sliding constant velocity joint, and the other of the first constant velocity joint and the second constant velocity joint can be designed as a fixed constant velocity joint. The first outer running ring and the second outer running ring can be welded together. The first outer running ring and the second outer running ring can be screwed together. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated into this description, show exemplary embodiments of the invention and serve to illustrate the technical ideas in conjunction with the detailed description of embodiments below, the invention being not limited to the embodiments shown in the