Conversions

[Ding123]

I haven't posted on here in a long time but I come on every now and then to steal a few ideas. Anyway, I have been working on alot of motor conversions. I have been putting the magnets on the stator and then wrapping the stator with a thin piece of stainless steel. I then tack the sleeve over the magnets the best way I can.Not everyone has got the gear for this so it is just trial and error.I just use a welding rod and 2 12 volt batteries to tack the stainless sleeve around the stator, and then grind down the tacks so they don't get in the way. It doesn't seem to steal any power from the magnets.

I mentioned this a long long time ago,but a nice man named Flex or,one of the other Flexes told me it wasn't feasible, but if you are having problems with magnets hitting,or bouncing around, this is one solution. Here are a few pics,if they comeup.

[WXYZCIENCE]

Ding123,
Nonmagnetic stainless worked for me wonderfully. I used rivets to hold the sleeve together then pressed it onto the rotor. I have a picture of it called
roto7.jpg. http://www.fieldlines.com/images/scimages/5769/roto7.jpgy
Can't get the pictures to come up anymore.Joseph  

[willib]

pumpworm

you have a 'y' at the end of your .jpg

[SparWeb]

What a neat idea.  By welding on the end of the barrel, most of the weld bead doesn't make a protrusion into the stator clearance.  With a rim of (aluminum?) under the weld, the welding heat dissipates quickly instead of cooking the magnets.

The photo sort-of looks like you've already tacked some edges - but are you pulling them apart with your finger?  Why is there a window over 8 of the magnets?  Why is there a band in the middle with no magnets?  Every answer just creates more questions!

[Ding123]

Rivets are a good idea,man!I never thought of it at the time.I had to take mine around to a few fabricating shops and asked them to put a touch of weld,here and there. I did use non-magnetic stainless,I had some as thin as chip bags, but it wouldn't weld. Anyway,nice job, WXYZscience!

[Ding123]

SparWeb, thank you for your comment.I tried to cut a window to show what I meant,

but after alot of sparks and cursing and throwing things around ,I decided the best way to show it,was to cut it.

This was already built,I am taking it apart.

Might look neat in the pics but it turned out to be off centre.

That band is a piece of aluminum wrapped around the stator because the magnets tried to go bonkers while assembling.I can tell you are a man of detail!LOL

Ding123

[WXYZCIENCE]

Ding123,

As you can see the deformations in the stainless. The stainless was very thin. As I pressed it on from the end thought it might crumple. But it fit to the end and was very tight on the rotor. Joseph.

[Ding123]

WXYZSCIENCE, I looked over your files,you sure keep busy and have some very interesting stuff.I think I opened Pandora's box by coming back to the board!My wife says"oh , No! Here we go again!"

[hiker]

nice rotors.......

any stories on your rewinds-picts.... :}

[jimjjnn]

Ding123,

Always enjoy your posts.

[Ding123]

How are you doing? I don't rewind most motors.I am probably going to take alot of flack for saying that. Most motors I just take a multimeter, set to ohms,but of course you know that. I just fool around with the outcoming wires,tie a couple together until I get some ohms out of the others.Not much sense taking pix of that

but I take down the amature and add magnets. In just about every case,if the motor has bearings,I will add magnets.Also,in just about every case, I get some kind of power.

Anyways,thanks for your interest.

I enjoyed looking at your files.Borrowed a few things from you.haha!

[Ding123]

Hi jimjjnn,thanks, It's people like you that make all the arguments I have,with "you know who"(she's not here ,right now...)worth it!I have only been back on here a few days and she is already checking to see if the washer and dryer still have motors. She says she remembers the days when we had a garberator in the sink.

I tell her,I am still working on it,still trying to fix it. she doesn't know it is flying in someone's back yard. Be good to yourself.

[hiker]

glad to here you got some useful info from my contraptions....ding123...

rewinds arnt that hard to do...i dont make a coil jig--just reach inside the rotor and wind the coils by hand..

to remove the old windings i just toss the lams in my grill and burn off all the glue and insulation--then hacksaw off the ends of the coils,on one side..

then pull the wire out from the other side...you can make wire insulators from

thin plastic sheeting.[no idea on melting point]just cut to size..thin popscyle

sticks cut to size work great to keep the wire in..i like to squirt some silicon

in each slot-keeps the wire from moving around...................

[Ding123]

Great tips! There is no doubt in my mind that I will try some of these things.

It is a really good idea you have to remove the glue and insulation . I have had so many weird things in my barbeque that my wife won't eat out of it now.Anyway,have a good one.

[ghurd]

Off-Topic, but I am having a 'me' day.  

Grundfos makes an induction motor powered circulating pump that has a SS or AL (?) can between the coils and armature.

Sounds like the dumbest thing ever, but none the less, they make it that way.

G-

[Ungrounded Lightning Rod]

Probably acts as an additional "squirrel cage".

[ghurd]

The 'can thing' is stationary, like the coils.

I figured it was for waterproofing, but it is pretty darn thick (or at least pretty darn tough).

Makes me wonder how the efficiency would go up if it was made of glass.

It failed because water got into somewhere it should not have been anyway, so maybe genuine plastic would be just as good.

G-