Subject:
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RE: Friction Pulley question
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 24 Jan 2000 23:00:39 GMT
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Original-From:
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Tilman Sporkert <tilman@activesw.=StopSpammers=com>
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Viewed:
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955 times
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> 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
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Message has 1 Reply:
 | | Re: Friction Pulley question
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| 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 (...) (25 years ago, 29-Jan-00, to lugnet.robotics)
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Message is in Reply To:
| | Re: Friction Pulley question
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| Unfortunatelly I don't have a clutch gear. It's hard to find and I can't order kits with it outside US. :( Pulleys and clutch gears can solve the problem but they requires more space. I really don't know if the friction pulley was designed for that (...) (25 years ago, 24-Jan-00, to lugnet.robotics)
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