Vehicle Transport in Slotted Holes 1

[sgs114]

Hello,

I have a unique project I am working on which involves the construction of a fairly large pallet which will be loaded with some sensitive equipment that needs to be transported. The pallet is loaded onto a truck via the truck driving under the pallet and raising up it's platform until it is in contact (bearing) with the pallet. We had originally specified (2) bearing plates with a layer of teflon between them and slotted holes to give them some alignment leeway. Now we are wondering if the pallet would be truly "locked in" with the teflon present. Also this connection needs to be re-usable, so I believe if we specified as slip critical, we would have to replace the bolts after each use. It's almost like we just need to use clamps on either side of the bear plates to stop movement and not rely on the bolts. Anyone have any experience using slotted holes in a re-usable condition (with low friction material between)?

SGS

 

[r13]

A sketch will help for understanding.

 

[BUGGAR]

These sound like bridge bearings that are designed to slip. Look up bridge bearing pads and see how they are restrained. Usually restrainer bars are welded to the baseplate. In SoCal we use large cables or similar to keep the bridge beam from jumping out of it's socket and falling into the bay during the Big One.
You will be subject to dynamic transport loads as well.

 

[BAretired]

Use keeper plates or angles around the pallet to hold it in place. Then it can't slide.

BA