Author Topic: main shaft and hub study  (Read 652 times)

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mbouwer

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main shaft and hub study
« on: January 02, 2018, 06:32:22 AM »
The aim is to search for a main shaft design which I also can easily reproduce for windmill friends.

The axle starting point with two bearings 72-35-17 and 62-30-19 mm.
« Last Edit: January 02, 2018, 07:35:08 AM by mbouwer »

mbouwer

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Re: main shaft and hub study
« Reply #1 on: January 03, 2018, 03:09:29 AM »
The assembly with the two standard bearings.
Now I want to try out a different idea based on an axis of a front wheel drive car.
 
« Last Edit: January 03, 2018, 03:34:42 PM by mbouwer »

mbouwer

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Re: main shaft and hub study
« Reply #2 on: January 04, 2018, 03:34:54 AM »
Usefull remaining parts after dismantling a front axle.

JW

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Re: main shaft and hub study
« Reply #3 on: January 04, 2018, 12:25:16 PM »
Looks good :)

george65

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Re: main shaft and hub study
« Reply #4 on: January 04, 2018, 05:31:38 PM »

I recently picked up some Subaru hubs to build a garden trailer with.

They have a very convenient mounting point where they attached to the struts that can be bolted or welded to a support. Alternately the assembly could be mounted on a ball joint like original so the thing pivots. The ball joints are sealed and last over 100k Km in road use so I'm pretty sure would not be wearing out in a hurry on a turbine.

The disk slides over the studs which retains them regardless of wether the drive shaft is in place or not.
I don't know if using the shaft to mount the alternator back away from the blades would be an advantage or not but it would certainly allow a good degree of weather sealing.

The tail assembly could be mounted on the sturdy arm that the steering rack mounts to.

Guarantee the supply of Subaru spares isn't going to dry up in wrecking yards due to people building turbines.  Threw away about 50 of the things before Christmas because they don't sell a lot  which means they don't fail too often .

mbouwer

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Re: main shaft and hub study
« Reply #5 on: January 05, 2018, 03:31:03 AM »
JW,

Thanks for having me on this forum. OP inspires me.

George65,

Do you mean a hub like this?
Important is how big I can drill a bushing hole of a sufficiently large size through the axle.
This is for the guiding of the rod of the pitch adjustment.
 

mbouwer

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Re: main shaft and hub study
« Reply #6 on: January 05, 2018, 03:52:49 AM »
The axle shaped out of the parts I show in Reply #2

george65

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Re: main shaft and hub study
« Reply #7 on: January 05, 2018, 06:36:32 AM »
Nope, I mean a hub like this:

Sorry, can't get image to show.

http://subierecycling.com/product/90-99-subaru-legacy-front-right-spindle-knuckle-hub-bearing-wo-abs-28012aa004/#

http://sspparts.com/watermark/1/items/24461/IMG_7613.JPG

Would wouldn't have to drill any hole, things have one about an inch diameter right through where the drive shafts go. 

mbouwer

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Re: main shaft and hub study
« Reply #8 on: January 05, 2018, 08:27:44 AM »
Thanks for the link.
After dismantling and removing a lot of heavy iron you get Reply #2
Then after shaping a light sandwich flange and a locking ring with 6 holes M4 you get Reply #6

mbouwer

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Re: main shaft and hub study
« Reply #9 on: January 06, 2018, 03:42:35 AM »
Striving for low weight brings many advantages and I think a windmill has a longer lifetime.
The spokes on the hub for the attachment of the magnetrings are shaped out of 1 mm sheet.

mbouwer

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Re: main shaft and hub study
« Reply #10 on: January 10, 2018, 06:43:42 AM »
Axle+hub.
What I do'nt like is that this way of locking up the front bearing
reduces the through-hole in the axle to 16 mm.