Thread: Swerve drives
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Unread 19-04-2014, 13:44
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AKA: Tyler Gibb
FRC #2517 (Evergreen Robotics)
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Re: Swerve drives

Quote:
Originally Posted by Orion.DeYoe View Post
Swerve is something I've wanted to build in the offseason for a while. I understand the mechanical and control concept of it and I know how it's driven and mostly how the modules need to be constructed.
The point that I have a really hard time understanding is how the pivot is set up. Does it just ride metal on metal? Or is there some sort of bearings, rollers, or slip pads/blocks? How do you contain the rotating module (the yoke) up and down and side-to-side while still being able to disassemble it? No one seems to have any good cross section views of the modules in an assembled state.
We use thrust bearings in the top of the yoke so that it can carry weight but still rotate freely.
What do you mean by contain the rotating module? We have a retaining ring at the top of the pivot shaft that keeps it from falling out the bottom. The sides of our yoke have 3 bolts that have threads on the top of the yoke to connect. On ours at least it takes about 2 hours to get every thing to go together, to take it apart it can take up to 6 after a little use(with the help of a hammer). Our pivot shaft is thermal press fit in to the top of the yoke. We can not get it out even if we wanted to.