Unlock instant, AI-driven research and patent intelligence for your innovation.

Fixed constant velocity universal joint and method of producing outer ring of joint

A constant velocity universal joint, fixed technology, applied in the direction of gear transmission mechanism, rotating parts against centrifugal force, elastic coupling, etc., can solve the problems of fatigue damage, etc. Strength improvement effect

Active Publication Date: 2013-10-23
NTN CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when rotating at a large operating angle and input torque for a long time, each locus has a phase receiving a large load and a phase not receiving a load, and the outer ring is repeatedly deformed due to the stress, which becomes the cause of fatigue damage.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fixed constant velocity universal joint and method of producing outer ring of joint
  • Fixed constant velocity universal joint and method of producing outer ring of joint
  • Fixed constant velocity universal joint and method of producing outer ring of joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Hereinafter, embodiments of the present invention will be described based on the drawings. First, the basic structure of the fixed constant velocity universal joint is described. Such as Figure 2 ~ Figure 4 As shown, the main components of the fixed constant velocity universal joint include: an outer ring 10 as an outer joint member; an inner ring 20 as an inner joint member; a ball 30 as a torque transmission element; and a cage 40 that holds the ball.

[0041] The outer ring 10 is composed of a mouth portion 12 and a rod portion 18, and is connected to one of the two shafts to be connected by a serration (or spline. hereinafter, the same) shaft portion of the rod portion 18 so as to be able to transmit torque. Here, the mouth portion 12 has a bell shape and has a spherical inner peripheral surface 14, and grooves 16 extending in the axial direction are formed at equal intervals in the circumferential direction of the spherical inner peripheral surface 14.

[0042] The inn...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A fixed constant velocity universal joint includes: an outer race (10) having a spherical inner circumferential surface (14), the outer race (10) including axially extending ball grooves (16) formed in the spherical inner circumferential surface (14) at regular circumferential intervals; an inner race (20) having a spherical outer circumferential surface (24), the inner race (20) including axially extending ball grooves (26) formed in the spherical outer circumferential surface (24) at regular circumferential intervals; balls (30) interposed between pairs of the ball grooves (16) of the outer race and the ball grooves (26) of the inner race; and a cage (40) having pockets (46) for receiving the balls (30), the pockets (46) being formed at predetermined circumferential intervals. The outer race (10) is produced by hot forging or lathe-turning and subjected to thermal refining treatment.

Description

Technical field [0001] The present invention relates to a method for manufacturing a fixed constant velocity universal joint and its outer ring, which can be used in power transmission devices for motor vehicles and various industrial machinery. Background technique [0002] Constant velocity universal joints used in power transmission devices of automobiles and various industrial machinery are roughly divided into fixed and sliding types. Sliding constant velocity universal joints can perform not only angular displacement but also axial displacement (projection). In contrast, fixed constant velocity universal joints can only perform angular displacement and can be used, for example, in the drive shaft of a motor vehicle. Wheel side (outer panel side). [0003] The light weight and compactness of the fixed constant velocity universal joint can contribute to the improvement of the fuel consumption of the motor vehicle or the degree of freedom of the drive system layout. Therefore,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16D3/2237F16D3/224F16D3/223
CPCF16D2300/10F16D3/224Y10S72/714Y10S464/906F16D2250/00F16D3/2237F16D2250/0053
Inventor 小林智茂
Owner NTN CORP