LIFTING FRAME

   / LIFTING FRAME #1  

rlrsk8r

New member
Joined
Sep 19, 2024
Messages
7
Location
Central Ohio
Tractor
john deere
I have a zero turn mower that I wish to store in my shop. Not wanting to lose floor space I decided to build a support frame and hang it from the roof joist bottom chords. The mower weighs about 1500 pounds and the bottom chord is a 2 x 10 so I know it is strong enough. I have a 1 ton chain fall which I will fasten to an angle iron that will span three of those chords. I plan to build a rectangular frame to lift the mower with. shown in the attahed diagram. I have four tiedown eyes on the mower, which I will use as lifting eyes. I plan to build the long members of the frame out of rectangular steel tubing that is 1-1/4 inch by 2-1/4 inch, 0.063” wall thickness oriented, so the wide dimension of the tubing is vertical. After I build the frame, I will find the balance point and weld crossmember near the middle of it with a lift eye.
I have searched on the net but cannot find whether my tubing is strong enough to support the 1500 pound mower. I found formulas, but do not understand how to compute the bending moment.
My guess is that my 1-1/4” x 2-1/4” tubing should support my mower, with each corner supporting about 400 Lbs.
I'd like some thoughts on the construction of my frame. The reason I’m using this tubing is because it’s what I happen to have lying around. And the reason I’m building the rectangular frame is so that my chains hang straight down and not touch the plastic fuel tanks. The squiggly lines at the corners are the chains.

LIFT FRAME.jpg
 

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   / LIFTING FRAME #3  
Yeah, what he said. ⬆️
Doesn't look like a good idea to me.
 
   / LIFTING FRAME #4  
Why are you starting a new thread on this? I assure you, it won't go any different than the last one. I'll ignore, for the moment, the whole subject of what this is hanging from and say that no, those components are not strong enough for that application. BTW, what are you going to lift with?

If you want more storage in your building, why not just build a loft in it and park the mower underneath?
 
Last edited:
   / LIFTING FRAME #7  
I remember reading several years ago about a guy who was sitting under his car doing work on it. The car was not on stable supports and it fell on the guy. He was folded in half and died. I can just see this guy suffering a similar fate. He seems to be stubborn though so maybe he will continue to ignore advice and build the thing. If he does I hope it doesn't fall on someone else. I just get shivers thinking about his scheme.
Eric
 

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