Got a ? Not Really Coal Related but Combustioneer Related

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goblin79
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Post Wed. Feb. 01, 2012 10:33 pm

ok I wont to build a pig spit and am looking for a gear reduction box ive got 2 combustioneer 77s for parts so my ? is what is teh gear reduction on the gear box

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McGiever
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Post Wed. Feb. 01, 2012 10:42 pm

I can't double check right now, but seem to recall it being like 100:1.

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goblin79
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Post Wed. Feb. 01, 2012 10:48 pm

kewl so thats 100 rpm moter is 1rpm of teh spit


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McGiever
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Post Wed. Feb. 01, 2012 11:50 pm

goblin79 wrote:kewl so thats 100 rpm moter is 1rpm of teh spit
Yes, that's what I recall.

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LsFarm
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Post Thu. Feb. 02, 2012 12:50 pm

Even slower if you use a chain to connect the gearbox to the Spit with a small chain sprocket on the gearbox, and a larger sprocket on the spit.

The spit needs to have strong bearings, and be removable for putting through the animal carcase,

I would make the sprocket on the outside of the spit bearing, so you could lift the opposite end of the spit, which would provide slack
in the chain, allowing easy removal of the chain, then lift the spit off the bearing support columns..

I helped build several BBQ rottissery [sp?] setups years ago, but don't have any photos.

Greg L

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goblin79
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Post Thu. Feb. 02, 2012 5:42 pm

i was thinking I would use pullys and belts


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LsFarm
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Post Thu. Feb. 02, 2012 7:33 pm

The only problem with pulleys and belts is the grease from the pig can splatter on the belt and make it slippery and loose traction in the pulleys.. If you put up a grease splatter shield, maybe even just a large piece of aluminum to shield the belts it should work.

Greg L

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goblin79
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Post Thu. Feb. 02, 2012 8:49 pm

the grill part is inclosed so I should be good to go then thx for all the help

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LsFarm
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Post Thu. Feb. 02, 2012 11:05 pm

I've read that the combustioneer gearbox is a bit fragile. I have an Iron Fireman stoker, and the gearbox for that auger and stoker is tough, very overbuilt, I can't imagine it stripping any gears or having any problems..

If you have access you might try looking at an Iron Fireman gearbox, it has a three step pulley on it if you wanted to change the speed at the BBQ location.

Just thinking.

Greg

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rockwood
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Post Thu. Feb. 02, 2012 11:33 pm

There's a shear pin to protect the gear box. If you're not sure if it's the right type, you could replace it just to be safe because nails, hard wire and bolts are sometimes used in a pinch, then forgotten about and never replaced with the proper one.
Stokermatic or Combustioneer Coal Stove Links?

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