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Re: pic: coupling for dual cylinder ballshifter
Looks like a great and innovative solution to needing more shifting force! We had never thought of using multiple cylinders to increase shift force (just upping cylinder size or adding a lever... neither of which work with our space constraints). I didn't notice a ratchet visible on your gearbox... is there one somewhere in your design?
We had designed for a dog-shift method and tried modifying the tooth geometry (grinding the surfaces on the dog and the dog-gear down slightly so that they're still parallel but no longer parallel to the axis of the shaft), hoping that would take enough of the friction force out. Alas that was unsuccessful, and using our standard .75" bore shifting cylinder we couldn't pull it out even at 100psi. I suspect this method would work eventually, but might not be as repeatable... Instead we've decided to "cut our losses" and switch to the ball-lock shift method.
I saw 2177 just commented that their ball shifter (2 CIM input?) worked fine with only 20psi of pressure... have other people also already tried the ball shifter for their winch-release? If so what're your findings? What's the torque on your output shaft (force * spool radius)?
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Student: 2006-2010 (#1519)
Mentor: 2011-Present (#1519)
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