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Forum Index : Windmills : LG motor shaft
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| govertical Guru  Joined: 11/12/2008 Location: United StatesPosts: 383 |
Hi, that is the challenge. It took me more then a few tries to make it work. Don't give up, it can be done. Using the drive shaft as a alignment tool helps. just because your a GURU or forum administer does not mean your always correct :) |
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solarwind Regular Member  Joined: 03/02/2008 Location: South AfricaPosts: 51 |
Hi I have started some time ago with a similar LG motor. Here is a photograph of an U-shaped box with two plumber block bearings carrying the shaft. The stator coils are attached to one face of the box and the shaft has a plate to which the magnet rotor is attached. The blades are home-made PVC cut from a blue PVC pipe. At this stage there is no tail yet! 2016-01-25_104009_Holding_on!.zip You don't have success until you've tried it! |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Hi, nice results. Thanks for posting. What is your average daily wind speed? Did you rewire the stator? Do you have any pictures of the magnet rotor hub? just because your a GURU or forum administer does not mean your always correct :) |
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| solarwind Regular Member Joined: 03/02/2008 Location: South AfricaPosts: 51 |
Hi, I have since moved from that location and have no idea what the wind speed was. A bit more than a breeze! I did some mods on the stator. I split all three phases right in the middle and star-connected (Y-connected) each half such that there is a 180 degrees shift between them (apart from the fact that each half is a 3-phase system in its own right with 120 degrees between phases); thus creating a 6-phase alternator. Each half is then rectified by a 3-phase bridge rectifier and the resulting DC of each is connected in parallel with each other. I am still busy with solar at the moment and the wind project is shelved for a while, but I'll start again some time and will provide more details. You don't have success until you've tried it! |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Cool, thanks. just because your a GURU or forum administer does not mean your always correct :) |
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| solarwind Regular Member Joined: 03/02/2008 Location: South AfricaPosts: 51 |
Here is a link to a similar thread in this forum http://www.thebackshed.com/forum/forum_posts.asp?TID=7025&KW=36+pole+lg You don't have success until you've tried it! |
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| rjsc2000 Newbie  Joined: 17/12/2015 Location: PortugalPosts: 13 |
Hi Thinks are not easy :D Can you tell what kind of plastic shim? I can't find a suitable plastic over here. And what is the thickness? Thanks Ricardo |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
http://www.amazon.com/MIU-Flexible-Cutting-Board-Set/dp/B00011RTE8 Hi, I use a lot of kitchen supply stuff for projects. Hope this helps, cheers. just because your a GURU or forum administer does not mean your always correct :) |
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| rjsc2000 Newbie Joined: 17/12/2015 Location: PortugalPosts: 13 |
I can't put it centered enough so that it rotates easily. There's always some magnets that stuck to the coils. Āt this point i'm ready to buy another set but this time with the shaft and other pieces or a full machine.... Here are some pictures 
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Hi,are you using the shim material to help with the alignment? Thanks for posting the photos. just because your a GURU or forum administer does not mean your always correct :) |
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| rjsc2000 Newbie Joined: 17/12/2015 Location: PortugalPosts: 13 |
Yes, but things weren't going well . And i've marked the place where the hub was and then secured it a few milimeters above, but it didn't work. Maybe i'm using "small" stuff? The shaft is 12mm and the hub is not very big |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Hi, did you over size the outer diameter bolt holes so you can move the rotor a small amount? just because your a GURU or forum administer does not mean your always correct :) |
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| rjsc2000 Newbie Joined: 17/12/2015 Location: PortugalPosts: 13 |
Not with the rotor but with the hub itself. |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Shim Hi, I just use a shim to center the stator to the rotor. just because your a GURU or forum administer does not mean your always correct :) |
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