Turning through + - 90 degrees with cv joints 1

[amorrison]

Would any engineer in his right mind use a series of cv joints to turn a driveshaft through 90 degrees instead of using a right angle drive? The intermediate support shafts would have to be anchored.

If say 70 degrees is required - would it be done?

Any examples?

 

[MikeHalloran]

The Citroen SM uses two CV joints at the outer ends of its axles to get steering lock like a London taxi. I'm not clear on how the intermediate shaft is supported; perhaps by the sphere that encloses the entire double- joint assembly.




Mike Halloran
Pembroke Pines, FL, USA

 

[GregLocock]

But that is only likely to be 45 degrees max.

Some agricultural equipment uses double cardans on the PTO shaft to get fairly weird looking angles, but again, probably not much more than 45 degrees, and again, without a direct support of the intermediate shaft.



Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[Fabrico]

You might check out the Cornay Joint. Some are claimed to go up to 90*.

http://www.drivetechnologies.com/