Subject:
|
Re: Friction Pulley question
|
Newsgroups:
|
lugnet.robotics
|
Date:
|
Sat, 29 Jan 2000 13:32:41 GMT
|
Viewed:
|
2341 times
|
| |
|
|
I found a way to "regulate" the friction in the friction pulley. The point
is that the axle doesn't need to be inerted all the way inside the rubber
ring. You can insert it just a little and use small bushings to keep things
in place. I used this to connect a motor to a steering mechanism after a 1:8
gear reduction with success. I reinforced the robot this time. :)
Mauro Vianna
"Tilman Sporkert" <lego-robotics@crynwr.com> wrote in message
news:NCBBKPAJLICLDDABDHAMIEPBDGAA.tilman@activesw.com...
> > Pulleys and clutch gears can solve the problem but they requires more • space.
> ...
> > I did one experiment and I was partially successful using this pulley • after
> > a 8:1 gear reduction (wormgear to 24t, 24t to 8t gear) so that the • torque
> > aplied to the rubber ring was much stronger.
>
> You can use the pulleys as one stage of the gear reduction setup without • using
> any or minimal additional space. Use a small bushing for the input. Put it • as
> close to the motor as possible. Or you could go from a small bushing to a • small
> bushing if you just want slippage without gear reduction in minimal space. • If
> you can't get enough friction, use a pair of pulleys on each axle with a • pair of
> rubber bands. That's the same width as normal gears.
>
> One advantage of using pulleys with a rubber band is that you don't have • to
> worry much about proper spacing of your axles.
>
> Tilman
>
>
>
|
|
Message is in Reply To:
 | | RE: Friction Pulley question
|
| (...) ... (...) You can use the pulleys as one stage of the gear reduction setup without using any or minimal additional space. Use a small bushing for the input. Put it as close to the motor as possible. Or you could go from a small bushing to a (...) (25 years ago, 24-Jan-00, to lugnet.robotics)
|
12 Messages in This Thread:
 
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
