Subject:
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Re: A couple of gear questions
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 16 Apr 2009 20:19:56 GMT
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Viewed:
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21798 times
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In lugnet.technic, Brian Davis wrote:
> I think it's a non-issue for the most part. The torque isn't really "over a
> range" - it's different for different clutch gears, but for any *single*
> clutch gear it's pretty constant. After all, if it has a point at which it
> starts slipping, it will always slip at that point: if it doesn't, it
> continues to rotate until that "weak point" is aligned and starts allowing
> it to slip.
That doesn't make sense. If it's rotating internally such that the "weak point"
could be alligned, then it's already slipping, isn't it?
> The few times I've used this, I've really never had a problem with the
> "stick-slip" behavior, but I don't think that behavior is why there is a
> range printed o the piece.
The range probably has to do with speed of rotation. Rotate it at a really slow
speed, and it should slip at a different torque rating than if you've got it
running at super-high speeds. We did experiments with how speed and inertia
affect friction in high school, and I remember enough to know that there _is_ an
effect, but not enough to tell you exactly what it would be.
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Message is in Reply To:
 | | Re: A couple of gear questions
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| (...) I think it's a non-issue for the most part. The torque isn't really "over a range" - it's different for different clutch gears, but for any *single* clutch gear it's pretty constant. After all, if it has a point at which it starts slipping, it (...) (17 years ago, 16-Apr-09, to lugnet.technic)
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