Restoring Winding on Damaged Rotor: Challenges with Dual Wire and Alternating Turns

Hello, I decided to rewind the winding of the damaged rotor from my slash, I have a supply of winding wire and access to the balancing machine, so it should work.
The rotor has 12 nurseries, and the commutator 24, dimensioned in the photo below (maybe someone has such a rotor for sale or knows where to get it?) The engine theoretically has a power of 1500 W:



The problem is that I have trouble recreating the winding, as if it were wound with two wires at the same time alternately, every few turns - maybe someone with this type of arrangement met?


I was able to play so much, sorry for the crooked drawing

Dear Friend, have you ever rewound a rotor? Because of
what I read and see you have never done it and you will not do it correctly.
The visible rotor has a very simple double wire winding.
Commutator condition looks good, so professional rewinding
and balancing should bring satisfactory results. Before removing the old one
winding should be "removed" wiring diagram of this winding. Clean slots
lay new insulation and wind up again, then connect to the commutator.
Wedge the winding, check winding continuity, impregnate and balance.
Fold the electric machine and run at low voltage and low speed
measure the current consumed, reach the brush and slowly increasing the voltage to
nominal to observe his behavior. If everything was done
carefully and the machine does not heat excessively and there is no sparking, enjoy it
THE USE

Elmont wrote:

Dear Friend, have you ever rewound a rotor?

Heh, you're right, I rewound the rotor only a few times back in practice, about 20 years ago, while the stator happened to rewind more often
I treat it as a weekend challenge

You also write that "The visible rotor has a very simple winding made of double wire" - do you have such a winding drawn?

Added after 1 [hours] 14 [minutes]:

I don't know if I'm already overwhelmed or too much for today, but I found some nice videos on yt, but the winding of my rotor compared to those from the link is completely different, as I wrote earlier - as if it were wound with two wires simultaneously alternately, every few turns which prevents a simple unwinding?

https://www.youtube.com/watch?v=V6-w6LmYhnE
https://www.youtube.com/watch?v=th1QIolXpuY&t=129s
https://www.youtube.com/watch?v=_K05Y6yDbnA

shel82 wrote:

I treat it as a weekend challenge

Take a grill, because you will lose money for wire and varnish and it will fall apart because the rotor must be balanced after all.
Nara.

Strumien swiadomosci swia wrote:

Take a grill, because you will lose money for wire and varnish and it will fall apart because the rotor must be balanced after all.

After all, I wrote that I have access to the balancer at a friend's workplace, so this topic interests me, the problem is the winding winding scheme, which is interspersed - I would need an example scheme of such a winding since it is quite simply wound, and in the photo below I marked what I mean :


You can see that the winding of a single coil intertwines every four windings with the other, so I have to unwind at the same time from two sides, but I have a break in several places and I can not get to order how it is wound ...

Again, your inquiry regarding the winding scheme of this rotor can anyone have similar?

I am asking because I was in two factories today and in one they stated that they had somehow weirdly wound up, and in the other man said that it was not profitable to do the work. ..

Maybe someone will recommend a factory in Mazowieckie?

Added after 18 [hours] 18 [minutes]:

Watching other rotors from other power tools, I start to wonder if my rotor is well wound up - I would add that it worked maybe 15 minutes, and this unusual winding is just a mistake, what caused the rotor to be damaged?

I was able to open the winding pattern, but I repeat my question about the unusual winding, i.e. it turns out that four coils from one roll are wound on the next one - is it correct and why should it be used?

Hello, I have the same rotor dimension for winding, only my winding was not interleaved. I cut it chaotically and I'm not singing the number of turns of the coil came out to me 15 zw. Could you share your readings in the diagram.

The device is a slash Guild BMS210GS 1700W

It is a good habit to specify the type of machine and manufacturer, then maybe someone will help faster.

Hello. By the way, I will ask you colleagues, can the SZJe 44b motor be rewound so that there are two thicknesses of wire? It looks like most turns are wound with 1.2 wire and some with 0.8 wire. Will such a rewound motor work evenly and load phases?
Admin forum sorry that not in the subject, but I do not know where to hook. Unusual topic.
Best regards.

pskal32 wrote:

SZJe 44b engine

And what does he have to do with the commutator motor and its rotor?

pskal32 wrote:

Admin forum sorry that not in the subject, but I do not know where to hook

Set up your topic.

pskal32 wrote:

most of the turns are wound with 1.2 wire and some with 0.8 wire

Either a garbage man was rolling through what he had on hand, or the motor was wound in two wires in parallel.

Even if two are too big differences in the cross-section and here the consent wound up by Mr. Henia in the basement. There is ?1,25

Bieda z nędzą wrote:

Or maybe someone was up to 220V?

With this power?