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Tripod constant-velocity joint

一种等速万向节、万向节的技术，应用在抗离心力的转动部件、弹性联轴器、轴承等方向，能够解决NVH特性变差、车辆抖动、摩擦力大等问题

Active Publication Date: 2019-08-06
ERAE AMS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the case of simultaneous articulation and axial displacement, the outer ring of the roller assembly does not perform a complete linear motion on the surface of the roller track, but moves in an inclined state to increase friction, which is causing the vehicle to suddenly accelerate or One of the causes of shaking when braking suddenly
In particular, at large articulation angles, the friction force becomes larger, thereby deteriorating the NVH characteristics

Method used

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  • Tripod constant-velocity joint
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  • Tripod constant-velocity joint

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0029] refer to figure 1 , The tripod type constant velocity joint according to the embodiment of the present invention includes an outer joint member 10 and an inner joint member 20 .

[0030] refer to figure 1 and figure 2 , the outer gimbal member 10 has a longitudinal axis OLA and is provided with a central cavity 11 and three roller tracks 12 . One side of the outer universal joint member 10 is opened to expose the central cavity 11 to the outside, and the other side thereof may be connected to a shaft for power transmission.

[0031] The central cavity 11 may generally have a cylindrical shape, and the roller track 12 may have a groove shape recessed from the central cavity 11 in a radially outward direction, and may be elongated in a longitudinal direction. At this time, the three roller tracks 12 may be equidistantly arranged in the circumferen...

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PUM

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Abstract

A tripod constant-velocity joint comprises: an outer joint member having a cavity extending in the longitudinal direction and three roller tracks; an inner joint member having a center body and threejournals protruding in the radial direction from the center body; and three roller assemblies respectively coupled to the journals in a state in which the roller assemblies are respectively arranged at the roller tracks. The roller assembly comprises: an inner race coupled to the journal and respectively having first and second inner ball grooves on both side surfaces thereof; a first ball array and a second ball array, each including a plurality of balls respectively aligned in the first inner ball groove and the second inner ball groove; and a ball cage for respectively restricting the longitudinal behaviors of the first ball array and the second ball array.

Description

technical field [0001] The invention relates to a tripod type constant velocity universal joint used in vehicles. Background technique [0002] A drive shaft assembly is used in the drive system of a vehicle for power transmission. [0003] The drive shaft assembly includes a drive shaft and a pair of constant velocity universal joints arranged on both sides of the drive shaft. Constant velocity joints arranged on the side facing the transmission system are called inner end constant velocity joints and those arranged on the side facing the driving wheels are called outer end constant velocity joints joint, and a tripod type constant velocity joint formed to allow axial displacement is generally used as the inner end constant velocity joint. [0004] The tripod type constant velocity joint includes an inner joint member having three journals, roller assemblies respectively connected to the journals, and an outer joint member receiving the roller assemblies. In this regard,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/205F16D3/223
CPCF16D3/2055F16D2003/2023F16C33/306F16C29/04F16D2003/22303F16D2003/22309F16C2361/41F16D2003/2026Y10S464/905F16C29/046
Inventor 张达秀徐钟旭
Owner ERAE AMS CO LTD