Author Topic: Active Pitchcontrol  (Read 241029 times)

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mbouwer

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Re: Active Pitchcontrol
« Reply #810 on: July 30, 2017, 03:01:21 AM »
Yaw bearing hub.

hiker

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Re: Active Pitchcontrol
« Reply #811 on: July 30, 2017, 08:38:59 PM »
Nice...if your going for heat...ide go with the thicker mags..the thin mags lose their stringht under a large load...due to the coil having a reverse field when they pass over the coil..coils..
WILD in ALASKA

mbouwer

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Re: Active Pitchcontrol
« Reply #812 on: July 31, 2017, 03:40:40 AM »
My intention now is to make a well-arranged test stand and have, together with windmillfriends, a critical look at all components.

mbouwer

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Re: Active Pitchcontrol
« Reply #813 on: August 01, 2017, 05:41:55 AM »
Yaw axle. The heavier the nacelle the more reinforcement sheets I would like to add.

mbouwer

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Re: Active Pitchcontrol
« Reply #814 on: August 02, 2017, 03:16:23 AM »
Next issue: the yaw drive.

mbouwer

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Re: Active Pitchcontrol
« Reply #815 on: August 03, 2017, 03:01:45 AM »
As a side note:
How about shaping the lamination core out of disassembled transformer laminations?
« Last Edit: August 03, 2017, 04:29:15 AM by mbouwer »

mbouwer

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Re: Active Pitchcontrol
« Reply #816 on: August 04, 2017, 03:30:31 AM »
The yaw bearing should turn less than 1 rpm. I could use this cordless screwdriver motor ( 180 rpm ) with one more reduction.

mbouwer

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Re: Active Pitchcontrol
« Reply #817 on: August 05, 2017, 04:20:24 AM »
After mounting an extra planetary reduction of a cordless drill I have a good outgoing speed. 
But I think the torque is overdone, in fact the motor could be much smaller and it's too complicated this way.
I want to search for a smaller engine with the proper reduction.

JW

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Re: Active Pitchcontrol
« Reply #818 on: August 11, 2017, 07:12:46 PM »
I am really happy this thread is still in tacked.

hiker

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Re: Active Pitchcontrol
« Reply #819 on: August 11, 2017, 07:22:06 PM »
I agree...wating  on latest progress report...😜
WILD in ALASKA

mbouwer

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Re: Active Pitchcontrol
« Reply #820 on: August 13, 2017, 12:03:54 PM »
As an aside relating to reply #796
I converted my electric powered ride on mower to a forklift like shape. The swing arm pivot of the power supply cable is attached to the top of the mast. Easier steering and riding around now.
« Last Edit: August 13, 2017, 12:09:16 PM by mbouwer »

MattM

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Re: Active Pitchcontrol
« Reply #821 on: August 13, 2017, 03:22:24 PM »
No doubt you get a lot of second looks in that rig.

hiker

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Re: Active Pitchcontrol
« Reply #822 on: August 13, 2017, 05:33:53 PM »
Lawn mower on steroids...with that you could trim the tops of hedges..or even give someOne..a flattop crew cut..😜
WILD in ALASKA

frackers

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Re: Active Pitchcontrol
« Reply #823 on: August 13, 2017, 06:08:55 PM »
You could tackle some REALLY long grass with that...
Robin Down Under (Or Are You Up Over)

mbouwer

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Re: Active Pitchcontrol
« Reply #824 on: August 14, 2017, 06:02:17 AM »
Actually I like this way of mowing because it brings less damage to the environment.
My big goal is to be able to mow with the energy of my, in cooperation with windmillfriends built, small windturbine.



mbouwer

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Re: Active Pitchcontrol
« Reply #825 on: August 15, 2017, 07:27:46 AM »
I myself also would like to be involved in others who build a small mill.

mbouwer

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Re: Active Pitchcontrol
« Reply #826 on: August 16, 2017, 07:17:14 AM »
The slide yaw bearing of reply #810  I would like to change to a double row ball bearing.
2 outer raceways turned / grinded in the hub.
« Last Edit: August 16, 2017, 12:48:44 PM by mbouwer »

midwoud1

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Re: Active Pitchcontrol
« Reply #827 on: August 17, 2017, 04:21:06 AM »
Few years ago I made a yaw drive  prototype.
Chain sprockets , Worm reduction , Cordless drill-motor.
Never used it in real situation .
Very content with the active pitchcontrol system.



mbouwer

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Re: Active Pitchcontrol
« Reply #828 on: August 18, 2017, 06:33:28 AM »
Really interesting project. Is it still available for home constructors for further build?

The "axle" of the yaw bearing.

mbouwer

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Re: Active Pitchcontrol
« Reply #829 on: August 20, 2017, 03:59:43 AM »
shortening the spacers = iserting more rollers = heavier load possible.

mbouwer

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Re: Active Pitchcontrol
« Reply #830 on: August 20, 2017, 04:21:20 AM »
This construction is derived from reply # 810  Weight: 1747 grams.
I would now like to make a simpler improved version with a slightly larger sprocket.

midwoud1

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Re: Active Pitchcontrol
« Reply #831 on: August 20, 2017, 06:22:29 AM »
I am quite good at working with metal ,but making a slew-bearing I am too young for it.

mbouwer

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Re: Active Pitchcontrol
« Reply #832 on: August 20, 2017, 08:29:15 AM »
Cooperation is the answer.

mbouwer

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Re: Active Pitchcontrol
« Reply #833 on: August 24, 2017, 06:07:02 AM »
Shaping the new light yaw bearing. Filling ring at the holes.

mbouwer

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Re: Active Pitchcontrol
« Reply #834 on: August 25, 2017, 02:11:17 AM »
Found these pinions ( 3 Euro ) Now I need to shape an appropriate sprocket on the yaw bearing.

mbouwer

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Re: Active Pitchcontrol
« Reply #835 on: August 26, 2017, 04:55:03 AM »
Welded teeth at the circumference. Following is the internal assembly.

mbouwer

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Re: Active Pitchcontrol
« Reply #836 on: August 27, 2017, 06:26:45 AM »
Inner ring+roller-raceways.

Thinking another and easier method might be to make the yaw bearing from composite material.

Or 3D printing.