|
Posted by calisha jenkins on June 27, 2009, 1:55 pm
On Jun 25, 1:01 pm, zekfr...@zekfrivolous.com (GregS) wrote:
> In article <1fcebf15-8575-4978-a81f-0ac32c0ac...@n30g2000vba.googlegroups=
> >> You are describing the standard behaviour of a multi-spindle
> >> CNC-controlled lathe, with two headstocks, each headstock with
> >> pneumatically-controlled chucks.
> >> Put =A3100,000 in envelope A and one could be yours.
> >> > Does anyone know of a standard coupling which allows a rotating shaft,
> >> > after halting, to disengage ( one side is retracted w/ linear actuator
> >> > 1/4" to 1/2" ) as the other side is moved +/- 12" , as another process
> >> > takes place then returns to orig location, retracted side returns to
> >> > re-engage , the coupling is self aligned, and the shaft resumes
> >> > rotation. A jaw coupling? I'm new at this. Any info will help. thanks- =
> >Hide quoted text -
> I can see it now, my old juke box platter going up and down , then it ingages
> and starts spinning.
> The question is, how much torque is needed.
> greg
> >> - Show quoted text -
> >Gee, that sounds easy enough. I hope they offer a lay-away plan.- Hide quoted text -
> - Show quoted text -- Hide quoted text -
> - Show quoted text -
I don't have the calculations but it's a 35 lb cart, 4 wheel drive w/
4" dia wheels at 0.75 ft/sec on max. 6% slope.
2 rear wheels drive for 12" while 2 front wheels disengage ( temp ,
non-driven supports decend ) to move past objects , then re-engage
with 4 wheel drive for norm running.
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML site map
> after halting, to disengage ( one side is retracted w/ linear actuator
> 1/4" to 1/2" ) as the other side is moved +/- 12" , as another process
> takes place then returns to orig location, retracted side returns to
> re-engage , the coupling is self aligned, and the shaft resumes
> rotation. A jaw coupling? I'm new at this. Any info will help. thanks