Author Topic: axial generator with lamination core (Read 114369 times)

mbouwer · « **Reply #363 on:** January 05, 2021, 10:20:31 AM »

Grinding out the slots takes some time.

GreenTeam · « **Reply #364 on:** January 08, 2021, 07:32:14 AM »

HOw are you making all these metal parts? Are you casting? Using parts from other machines?
Fill us in Pulleeez!

mbouwer · « **Reply #365 on:** January 10, 2021, 02:13:15 PM »

The laminations are polished and I sprayed a coat of paint on both sides.

mbouwer · « **Reply #366 on:** January 13, 2021, 02:58:05 PM »

The laminations are held together at the circumference with non-ferrous rivets enveloped with epoxy.
And after that I also coated the cooling fins with epoxy.
Now working on the rotor with the main bearing.

mbouwer · « **Reply #367 on:** January 15, 2021, 09:00:12 AM »

Main bearing with the suspension ring and the stator mounting brackets.

hiker · « **Reply #368 on:** January 15, 2021, 10:58:48 AM »

Nice work,,machine shop or ? Looks beyond a regular scratch built ,,what about a few picks of your shop or machine shop doing the fabrication,,😜

GreenTeam · « **Reply #369 on:** January 15, 2021, 10:55:32 PM »

The one concern I have already is the blades may have to be really really long to overcome the weight of all the metals no?
Or is it going to be so finely balanced that turning it wont be difficult?

JW · « **Reply #370 on:** January 15, 2021, 11:13:30 PM »

One useful factor to ask is TSR its a much smaller machine than you would expect.

mbouwer · « **Reply #371 on:** January 16, 2021, 04:15:13 AM »

It is a study of how I can make the mechanical part of a radial generator.

I have now assembled the stator on the main bearing.

mbouwer · « **Reply #372 on:** January 18, 2021, 08:18:00 AM »

Found these bearings with 60mm inner diameter.
A larger inner diameter is beneficial to accommodate the blade pitching.
Therefore the axle has to be modified.

MattM · « **Reply #373 on:** January 18, 2021, 10:59:56 AM »

Can you just mill an adapter plug to span them or will it create too much offset?

mbouwer · « **Reply #374 on:** January 18, 2021, 03:01:30 PM »

After welding a new piece of pipe into the suspension ring,
I machined the outside diameter on 60 mm.

mbouwer · « **Reply #375 on:** January 19, 2021, 12:26:03 PM »

Now I have the choice to glue on the circumference of the rotor:
--- 62 magnets
--- 31 magnets between 31 steel ribs

mbouwer · « **Reply #376 on:** January 20, 2021, 02:03:42 PM »

The hub with 6 ribs to bear the magnets sleeve.
Mounting the magnets is after all the other components are ready.

mbouwer · « **Reply #377 on:** January 22, 2021, 12:36:56 PM »

Shaft and stator are ready.
If I now make the top part of the mast and the yaw bearing, I can mount them on it.

mbouwer · « **Reply #378 on:** January 24, 2021, 10:04:22 AM »

The top part of the mast mounted on a jacket structure.

SparWeb · « **Reply #379 on:** January 24, 2021, 03:20:35 PM »

How does Mbouwer, who fabricates so much stuff, always seem to have a clutter-free space for his photos?
I fabricate lots of stuff, and every flat surface in my garage is littered with things.
My wife likes to point this out to me.

mbouwer · « **Reply #380 on:** January 25, 2021, 02:39:53 PM »

On top of the mast I need an appropriate, and also powered yaw bearing.
In the hardened steel rings I grind raceways for the 4 mm balls.

mbouwer · « **Reply #381 on:** January 27, 2021, 12:52:04 PM »

Adjustable angular contact bearing with 2 rows of 55 balls. I could use this as a yaw bearing I think.
But first I want to try to make a more compact version.

Mary B · « **Reply #382 on:** January 27, 2021, 02:48:29 PM »

There are readily available yaw bearings in the ham radio world... mast thrust bearings that take the load off the antenna rotor... some minor mods and I could see one working well. DX Engineering makes one(their own design) that is very smooth and tight and would be perfect.

mbouwer · « **Reply #383 on:** January 28, 2021, 04:44:34 AM »

My aim is to be able to make components for myself and also for windmill friends.

Now 2 hardened steel rings composed as the basis for the yaw bearing.
Outer diameter 80 mm

mbouwer · « **Reply #384 on:** January 30, 2021, 05:32:29 AM »

With this yaw bearing I want to continue.
On the circumference I have to shape a gear ring.

mbouwer · « **Reply #385 on:** January 31, 2021, 11:56:44 AM »

The yaw bearing mounted on the mast.

SparWeb · « **Reply #386 on:** January 31, 2021, 03:08:02 PM »

It's outdoors. I hope that means some machines will be put into the wind!

mbouwer · « **Reply #387 on:** February 01, 2021, 09:11:41 AM »

Much remains to be done before the blades turn in the wind.
First I now have to mount the main bearing on the yaw bearing.

mbouwer · « **Reply #388 on:** February 02, 2021, 08:16:46 AM »

Looking at the ratio between the mast diameter and the width of the yaw bearing I want a new set-up.

mbouwer · « **Reply #389 on:** February 03, 2021, 08:21:23 AM »

The shaft and hub of the yaw bearing.
The hub, which I will now weld on top of the mast, consists of hardened steel rings.

mbouwer · « **Reply #390 on:** February 05, 2021, 02:12:08 PM »

The new yaw bearing fits the mast better I think.

kitestrings · « **Reply #391 on:** February 05, 2021, 07:27:53 PM »

Is it outdoors mBwr?

mbouwer · « **Reply #392 on:** February 06, 2021, 04:40:48 AM »

@ Kitestrings,

It is what it will look like when this top part is mounted on the mast.

The yaw bearing seen from above.

kitestrings · « **Reply #393 on:** February 06, 2021, 06:40:55 PM »

I think that is a "no"

Mary B · « **Reply #394 on:** February 07, 2021, 02:25:53 PM »

Quote from: mbouwer on February 06, 2021, 04:40:48 AM

@ Kitestrings,

It is what it will look like when this top part is mounted on the mast.

The yaw bearing seen from above.

I live in a climate with ice and snow... there should be weep holes in the bottom of the bearing housing so moisture can drain... been there done that with ham radio thrust bearings freezing up.

mbouwer · « **Reply #395 on:** February 08, 2021, 05:20:10 AM »

The yaw bearing will be in the bottom of the nacelle. But even then maybe moisture can get in.
So like you say I would better drill a few small drain holes.

News:

Author Topic: axial generator with lamination core (Read 114369 times)