Tripod joint
A tripod joint , also called a tripoid joint , is a type of constant velocity joint , it consists of an inner and an outer part. The tripod joint belongs to the group of podium joints . The outer part has the shape of a hollow cylinder with three recesses. The three rollers of the inner part of the joint are flexibly mounted in the recesses of the outer part. The joint is protected from dirt by an axle sleeve and to prevent the grease filling from being thrown away.
The tripod joint is u in the automobile . a. Used for power transmission between the final drive and drive shaft . It competes with other types of constant velocity joints, whereby the tripod joint offers advantages through particularly low friction values and therefore the transmission of sound (NVH) from the wheel via the transmission to the body is lower than with other joint types.
history
In the middle of the 19th century, the bipod joint appeared, which was refined in 1921 by John B. Flick into a joint with rollers (instead of originally sliding blocks). Then in 1913 a quattropod joint was presented for the first time. After a first form of the tripod joint was invented in 1935, homokinetic tripod joints according to Michel Orain were used for the first time in 1958, but only to realize the flexion. A tripod joint, which also allowed axial displacement, followed in 1970.
See also
literature
- Seher-Thoss, Schmelz, Aucktor: Joints and cardan shafts. 2nd Edition. 2002, ISBN 3-540-41759-1 .
Web links
Individual evidence
- ↑ patent FR 1272530 "Joint universel pour transmission de mouvements rotatifs"