Magnet motor idea hopefully solved

[Low-Q]

I have received the neomagnets already.
400pcs 20mm long, 5mm in diameter.
Finally some build can begin 


Vidar

[Low-Q]

I also ordered a lot of 100mm x 20mm x 5mm Y30 ferrite magnets. Ferrites are weaker than neos, but much cheaper, and a 100 x 20 x 5 can hold approx 4kg iron piece if kept flushed with the magnet. I will use them as stator magnet. Placing them side by side to create one 180° arch with N/S, inner/outer radius, and one opposite S/N inner/outer radius.
A link to the magnets I bought 4 lots of (40 pcs in total).

https://www.aliexpress.com/snapshot/0.html?spm=a2g0s.9042647.0.0.857b4c4dMaBBga&orderId=104072272334732&productId=32905629608


Vidar

[Low-Q]

Here is a simplified explanation on how magnetic timing can enhance torque.
The figure explains that timing is related to how many degrees the brushes in an electric DC motor is turned 45° in the same direction as the rotor is going.
The round magnets is supposed to be electromagnets. Commutators are not shown, but the magnetic polarity is shown.


In my design, however, I use a belt with lots of magnets. One half has South outwards, and the other half has North outwards. This is how and why an electric DC motor work.
It is only the magnetic field that rotates, and not the physical magnets. More precise; the physical rotormagnets moves perpendicular to rotation and across the magnetic field instead of along with it.
This is possible because the belt with all the magnets winds along and between the pulleys clockwise in the same speed as the pulleys moves counterclockwise.


This design will become more clear when I have built it - and it will also become more clear how the mechanics is supposed to work.


Vidar

[Low-Q]

Refering to the figure above, with the white arrows:
The white arrows is responsible for some of the torque, but not all. It is responsible for approx 1/3 of the torque.
What is done when the belt/chain is held back so it can wind itself "backwards" as illustrated in the second figure above, is that all the contribution of this force is lost.
However, the torque around the magnets will still be there, and not affected by this. Since the torque in the magnets is approx 60% greater, I have a positive result.


If we imagine that the motor is laying flat, horizontally:
The next obstacle might be where the pole on the belt change direction, and how that magnetic field oppose the field from the statormagnet as it winds backwards and enter and exits the vertical statorfield.
I think that, if the statormagnet is wider than the rotor, the vertical field gets weaker. Still, the horizontal field, that accounts for the torque in the rotormagnets, will not get weaker, but more and more parallell to the rotorfield as the statormagnet is wider (taller, if we look at a laying statormagnet).
The horizontal statorfield has a gradient. This gradient is responsible for the torque.


Vidar

[Low-Q]

Printed out two main rotors. Now printing 24 pcs spokes.
Next is 24 pcs pulleys.
You can see one spoke and pulley attached to one of the main rotors.
The other image shows red end caps, green belt part.
Last picture is a small assambly of two magnets, belt part, and the end cap for the magnets. 288 pcs of each will be printed too. All white plastic...


Vidar