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Forum Index : Windmills : LG smartdrive info & pic.
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| carl1 Regular Member  Joined: 16/04/2007 Location: AustraliaPosts: 79 |
Hello to everyone I came across another LG smartdrive from a frontloader. Quite different from a top loader, smaller motor, same diameter, and totally different bearing holder. I think the frontloader has a 500 watt motor and the the top loader a 1500 watt??? Both have oversized bearings compared to F&P, and there would be very little to machine for windmills, both drumholder could be used as they are to mount blades on them, they are very strong. When I have time I will test them on a lathe for power output, If anybody wants to assist I live on the sunshine coast. If anybody has already some date info, this would be very appreciated, maybe there are some configurations which could be skipped??: 2 (different motors) x 2(star or delta) x 5(12s,6s,4s,3s,2s,) x 3 (12/24/48/volt)=60 variations x caps..... endless?? but we all together should be able to get some results. this is one of the best website on earth!!!! BTW: no cogging and the bigger one should have more power than F&P, we will see. Harald here are some pics: 
Toploder with original flat mounting plate 
Toploader complete 
left frontloader right toploader 
Frontloader, left statorholder, right rotating drumholder, perfect for a horizontal wind machine 
frontloader 
frontloader 
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Gizmo Admin Group  Joined: 05/06/2004 Location: AustraliaPosts: 5119 |
Very nice The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| rgormley Senior Member  Joined: 22/02/2006 Location: AustraliaPosts: 245 |
nice backdrop as well! |
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| Gizmo Admin Group Joined: 05/06/2004 Location: AustraliaPosts: 5119 |
Its just begging to be turned into a wind turbine. Everything is there, the hub, bearings, mounts. The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| domwild Guru  Joined: 16/12/2005 Location: AustraliaPosts: 873 |
Harald, Great pictures! Thanks. As an aside I remember reading somewhere that LG was being sued by F&P. I wonder why? I also do not know what happened in the end. Did they kiss and make up? Good luck with the build. No cogging sounds great. How is it achieved as the magnets are not skewed or are they? When are they going to appear during the kerbside days? Regards, Taxation as a means of achieving prosperity is like a man standing inside a bucket trying to lift himself up. Winston Churchill |
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| Jarbar Senior Member Joined: 03/02/2008 Location: AustraliaPosts: 225 |
Looks like they have great potential. If the rotors were set up facing and in contact with each other's magnets would this increase the total flux of the magnets.ie greater than 1+1.As it appears that stacking of the stators would be possible due to their flat construction.As compared to the F&P's with the dished center's which need more space to achieve this.With the F&P's I have been considering making a spacing ring out of the magnet part of the plastic rotor.ie machining the back off a rotor leaving both edge's of the magnets exposed.The magnets would self align by polarity rotor to rotor with maybe an external band clamping them concentrically. Creating more room for the stators stacked height and maybe more flux. Anthony. "Creativity is detirmined by the way you hold your tounge".My Father "Your generation will have to correct the problems made by mine".My Grandfather. |
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| brucedownunder2 Guru Joined: 14/09/2005 Location: AustraliaPosts: 1548 |
Like this F&P set-up. never got around to testing it fully ,,I think back and think it was a bit big and sort of scraped on one of the stators,,but I'll give it a try again .. Bruce Bushboy |
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| Jarbar Senior Member Joined: 03/02/2008 Location: AustraliaPosts: 225 |
Exactly Bruce!. If you had another rotor for the other end and machined the center out of it it could then hang off the bottom of my VAWT.The cable loom could exit out the new opening and down to the ground.Which gets me back to an earlier posting and that is if 42 poles x 3 stators were mounted so. Would it generate the same power at a third of the speed of an equivilent HAWT with one rotor/stator.And how would you wire it.I take your point about concentricty and keeping stator from deflecting towards the magnets pull. Anthony. "Creativity is detirmined by the way you hold your tounge".My Father "Your generation will have to correct the problems made by mine".My Grandfather. |
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| brucedownunder2 Guru Joined: 14/09/2005 Location: AustraliaPosts: 1548 |
Yeah,,, 3 of these F&P on a Vawt would require a huge blade ,remembering that it's at ground level,,not 50 feet above .. But ,if it's just for fun ,,you at least can go out and start it by hand. Someone told about the aerofoil looking sections on the sun shades at Exmouth airport, I worked on the naval base there and was in and out of the airport frequently--remember looking at them evry time As a side ,,, one time we were delayed because they had a huge black snake wandering around in the departure area,,it was funny seeing these army guys armed to the teeth,,then a blackfella (with respect), walked up with a stick and showed it the door. Bruce Bushboy |
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| domwild Guru Joined: 16/12/2005 Location: AustraliaPosts: 873 |
Bruce, As another aside: You probably mean Learmonth airport. The Main Roads Dep. built a small airstrip at Exmouth I used to land on. Highlight of my flying career was being banned by the RAAF from landing at Learmonth for "buzzing" or flying too low over the operator of a sweeping machine to warn him to clear the strip as he did not hear me the first two passes! Taxation as a means of achieving prosperity is like a man standing inside a bucket trying to lift himself up. Winston Churchill |
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| carl1 Regular Member Joined: 16/04/2007 Location: AustraliaPosts: 79 |
Hi I finally got around and did some test last week. output data is for the wider LG and the 36 pole, non cogging F&P 60DC 0.6mm wire(named it accidently DS) The one piece shaft assembly from the smaller LG (see pic.) bracket didn't fit in the lathe and I didn't want to cut the shaft off, it's to perfect for a blade holder. I measured only one phase and tripled the output So all measurements are for delta wiring! 
I need from somebody a hint, or where to get or how to use an exel chart template to accomdate the unregular rpms of the lathe. The rpms are not regular spaced on my lathe thats why the chart is misleading easy, as well the curves are not proper displayed. 
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| heynow999 Newbie  Joined: 15/02/2009 Location: CanadaPosts: 13 |
HI Harold Thanks for the testing. I have the same thicker LG, but I got it out of a Samsung. It's the same as this http://www.appliancepartspros.com/partsearch/ctrfs.aspx?part _id=4044223&&model_id=5174359&diagram_id=1345786 So it looks like I have a good motor to start with. This is my first try at a windmill so I was wondering if you could suggest how I should rewire mine. I am not sure what blades I will use. I know my site is not ideal. I have some trees and the wind is not great so I was thinking I need a mill that will cut in at low speeds. My battery bank will be 12v. Thanks Peter |
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GWatPE Senior Member Joined: 01/09/2006 Location: AustraliaPosts: 2127 |
Hi harald, You need to do a scatter plot, not a line plot. Use the rpm in the first column, and the other data in successive columns. ********************************************* Deleted graphs to avoid confusion. Glad U were able to post bettter graphs below. ********************************************* The LG has similar issues to a F&P, but this would be expected. Gordon. become more energy aware |
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| carl1 Regular Member Joined: 16/04/2007 Location: AustraliaPosts: 79 |
Thanks Gordon, looks much better. I expected more power at lower rpm from the LG compared with the F&P. cheers Harald |
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| carl1 Regular Member Joined: 16/04/2007 Location: AustraliaPosts: 79 |
Here are the corrected charts, thank's to Gordon. BTW: retcifier was via schottky diodes Harald 
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| carl1 Regular Member Joined: 16/04/2007 Location: AustraliaPosts: 79 |
I did more poweroutput tests in the last days: I have connected all three phases of the F&P 60DC 1S12P and the test results were disapointing compared to the previous single phase test. Measuring only one phase and tripling the data is not correct. I think the magnetic saturation plays a negative role in the higher rpms. I will post the data in a new topic because it's a F&P data result. Harald |
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