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impact loads and sliding wheels
Posted by Joe Johnson, Engineer on team #47, Chief Delphi, from Pontiac Central High School and Delphi Automotive Systems.
Posted on 5/14/99 7:45 PM MST
In Reply to: Re: the aweful truth about drill transmissions... posted by Jerry Eckert on 5/14/99 12:58 PM MST:
As to those anti-backdrive pins:
We broke a bunch of those transmissions from the impact load put on the tabs on the last carrier stage of the drill transmissions.
The anti-backdrive mechanism locks up almost instantaneously causing pretty large loads on the tabs. Also, one side of the robot will be more likely to break than the other because the Bosch put larger tabs in one direction than the other (because most uses of a drill involve clockwise rotation of drill bits and screws).
Finally, I like to be able to roll our robot around rather than dragging the wheels.
Joe J.
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