egg turner motor

[Mac in Wisco]

Quote:
Ok, so how is it set up? I assume the turning arm shaft spins a half a revolution every so many hours and the cam hits the limit switch to stop the turning arm at the 6 and 12 o' clock positions.

How does the clock motor interact? Does it use the second switch to override the switch on the turning arm? Any pictures?

 

[geareduplyn]

The two micro switches alternate by throwing the cams so the eggs turn every hour. One of the switches is wired as normally open and one wired normally closed. I have a crude wiring diaghram somewhere If I can find it I will post it. The clock motor overrides the turning motor to to stop the trays in the proper position. To take pictures of the turning mechanism I would have to take the back off the incubator which I can't do right now. this was not a completely unique idea of mine. I think that I saw something similar in the 50s and expanded on the concept.

 

[Mac in Wisco]

OK, I'm starting to follow. I thought they turned at intervals longer than an hour.

So the turning motor shaft has two opposing cam lobes that stop the motor as they pickup the microswitch, allowing the turning arm to stop at 180 degree positions. The timer cam pushes its microswitch once an hour to override the other microswitch turning on the motor again. The only problem I see is that the timer microswitch has to come off its cam before the turner contacts its limit switch again 30 seconds later, otherwise it will travel on through.

 

[98 gt]

Think of trains... The drive wheel is being turned by the lateral movement of the piston... I'm not on my regular computer so I. Can't draw a diagram maybe google it

 

[geareduplyn]

The turning motor shaft has only one cam lobe. The turning interval can be set up with the the revolution per hour rating of the clock motor. When the clock cam makes contact whether the switch is open or closed it will start the turning arm. The cam on the turning arm will open or close the switch after the arm makes the necessary 180 dgree motion.

 

[98 gt]

Just gear it down to spin appropriate speeds...

 

[geareduplyn]

Quote:
Don't make more complicated than it is. Those clock motors can be had in just about any RPH that you want. The simple turners in the foam incubators are in constant motion and go through a one hour cycle.

 

[98 gt]

I meant of you took a motor with a small pulley an drove a larger pulley, then drove an arm set the appropriate amount from the center of the pulley to push or pull the turning trays. About the easiest home made version IMHO

 

[campbellhatchery]

I just got a petersime model 4 th but it has a manual turner. I am thinking about using a GQF automatic turner, but upgrading the motor. Has anyone else done this before? what motor would you recommend for an incubator with 1000-1200 eggs?

So is it the timer that makes the trays stop in the right position or is it the cam and micro switches?

The GQF uses a 1RPM motor, would a 6RPM rotisserie motor work 80inch/lb motor work? That would be 6 ftlbs of torque.

It doesn't rotate trays on a pivot like most incubators, it actually has trays in a drum that rotates on a bearing.

 

[geareduplyn]

Too much work and how many people understand pulley reduction ratios.