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Built a Jib Crane

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发表于 2021-9-1 00:31:03 | 显示全部楼层 |阅读模式
This thing is so handy I'm surprised I didn't do it sooner. The main beam is an 11' piece of 2x4x1/8 rectangular tubing with 10' barn door tracks welded on and braced. The HF 1300 lb winch has tapped mounting holes that are the perfect width to match up with the tracks. I used trucks from McMaster that mount with a through bolt and just got metric bolts the right length and used jam nuts to keep them from coming out. The pivots are 1 1/2 x 3/8 wall tube with 3/4 grade 8 bolts. I had an existing 4x6 beam holding up a 4x12 ridge beam in my garage. I doubled it with another 4x6 at 90* to form a "T". Both sides are 4" channel and the through bolts are 1/2 threaded rod. The upper pivot point has a diagonal tension rod that ties it into the 4x12 ridge beam with a 3/4" turnbuckle to preload it.The tracks and wheels are rated to carry a 450 lb door so I should have 900 lbs capacity with 2. The winch has a 650 lb single line capacity but I probably won't pick up more than 500 lbs with it, I'll get the cherry picker for anything heavier. I did pick up my welding table that weighs over 500 lbs and the end of the beam only deflected about 1/2 inch. It's nice having it so handy so I won't be tempted to lift the marginally heavy stuff and risk hurting my back.JimCut an MGB and widened 11" C4 Corvette suspension and LT1 Chevrolet power & 6 spd. Pictures here:Part 1http://forum.britishv8.org/read.php?13,7581Part 2http://forum.britishv8.org/read.php?13,22422
Reply:verry cool. i made some thing similer for my shop out of round post , not near as nice but it gets the job dune till i get power in the big shop then i'll make a nicer one. you went strait to the nice one. summer is here, plant a tree for mother earth. if you dont have time or space, sponcer some one else to plant one for you.feel free to shoot me a PM or e-mail me at [email][email protected] i got lots of time.
Reply:Looks great Jim, that's just attached to a 6x6 post? I will definately put one in my building...when I get time. John -  fabricator extraordinaire, car nut!-  bleeding Miller blue! http://www.weldfabzone.com
Reply:That looks really handy.  When I needed to get my lowbuck 3-in-1 milling machine up on the bench I wound up putting eye bolts in the overhead joists and using a comealong to get it lifted.  This gives me an idea to make a front receiver mounted boom for my Jeep that uses the bumper mounted winch.  It would be handy for getting heavy items into and out  of the back of the truck then driven into the garage.
Reply:Originally Posted by MicroZoneLooks great Jim, that's just attached to a 6x6 post? I will definately put one in my building...when I get time.
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