Lee Cole, Team Mentor for the BoltBots (Team 5040) thought some teams would be looking for ideas for a winch design. He Wrote:
This maybe helpful to some of the teams . This is a winch that I have built before but on a much smaller scale for FRC components. The design of the winch uses two wire cables to give a positive up and down control. This is a cheap alternative to using chain and sprockets and will not require safety guards you need with sprockets. This website gives you the idea of the winches use. I photographed it stuck on a Toughbox
Nano but we are using a planetary gear box from VEX. Teams will need to determine what gears to use from there individual use.
http://webpages.charter.net/ragreiner001/Winch.html
[click MORE for detailed, step by step pictures]
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- Three inch washers ,two inch pipe ,one inch solid round stock ,dimension of the drum will be determined by what your needs are in your design.
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- Turn down one end of the shaft to fit a 1/2 in bearing.
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- Be sure it fits snug on the shaft .
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- Face off the other end of the shaft for preparation for drilling.
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- Center drill the shaft .
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- Drill with bit that will allow the 1/2 inch hex shaft to slide in about 2 inches.
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- Test hex shaft fit while still in lathe
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- The 3/8 set screw works well for this size shaft. Turn them up side down to find proper spacing on shaft.
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- Center punch shaft for drilling.
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- Drill appropriate size drill bit for tap size your using . Most taps have the drill size stamped on them.
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- Tap threads for set screws.
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- Install 3/8 set screws .
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- Weld washers to shaft and pipe to washers.
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- Weld and belt sand all burs on drums.
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- The finished two drum winch. It will allow positive up and down lifting
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- This is the supporting bearing bracket from Andymark or you could make your own.
