Disassemble the device and inspect the motor. Before to remove the faulty winding, determine the number of turns. Separate the coil from the upper coil and cut. In the flame produce the firing of the coils and count the number of turns.
Do not remove manifold if the anchor will have to rewind manually. Inspect the manifold and check resistance of insulation relative to the housing. The resistance should not be less than 200 kω. Clean the header from the remnants of the old winding and cut the slots in the contact parts of the collector, and then to insert the ends of the rails for sealing.
Cleaned the anchor sugilite. Fabricate casings of electrical cardboard with a thickness of 0.2 mm and insert them in the slots of the armature. After you install the updated manifold, cleaning the armature and inserting it in the grooves of the sleeves start winding coils.
During circular winding down the turns of the coil successively to fill all the slots of the armature. Styling produce counterclockwise when viewed from the side of the shaft, such laying is called laying to the right.
Don't forget to apply a bandage to the coil in the center of the manifold to secure the turns of the coils. The bandage consists of several coils of their thick strands which should be wound tight and tie. Do not use a filament of nylon – it may melt during operation of the armature. The best variant – cotton thread.
Check the device for the absence of interturn short circuits and breakages of the winding. It must be done prior to treatment, since untreated anchor the faulty winding is easy to see.
To secure the turns of the coil produce impregnation. It can be made of epoxy for heat curing with a plasticizer. In the impregnation at home you can also use any nail Polish.
In the end, make the groove. It will depend on the degree of sparking. Runout should not exceed 0,05 mm. the Cutter must be properly sharpened for brass. At the end of the groove, make the second check for the absence of interturn short circuits.
Advice 2: How to rewind generator
Rewind of the generator is necessary in order to restore normal operation. The winding may burn due to pollution and standing out of isolation. This procedure can be performed at home.
Remove the stator of the generator, the winding is placed on it. Place the stator on a noncombustible surface, such as bricks or metal surface. Ignite old insulation, do not be afraid, it does not degrade magnetic properties, and damage the iron. Pre-measure the length of the protruding parts, because for some generators it is critical – don't get out of the housing.
Count the number of turns, sketch a diagram of the winding mark on the stator where the start and end leads of windings. Thoroughly clean the stator steel brush from impurities and prepare it under the wound. Purchase sintoflex, which is an insulating material it is very durable and not pereobulsya on the bends.
Make insulating gaskets that will be 3-4 mm on each side of the groove. Wrap half the turns of one phase and continue the winding process in the other direction to cover the empty frontal part. Thus fulfilling one phase, mark it in the end. Also wrap the other two phases, making sure that the beginnings and the ends of the windings was of sufficient length.
Carefully seal the grooves, put them in the parts of shims that protrude outwards. Check that nothing beyond iron inside. Try the stator cover generator. Look closely, no where touch the windings and the housing. If such a defect occurs, take measures for its elimination.
Connect and propagte the terminals of the windings. Carefully isolate them and check for short circuit between phases if it occurs, make additional insulation at the site of contact. Immerse the stator in a special insulating impregnating varnish. After that, dry it by placing inside a light bulb, or in the oven on low heat. Install the stator in the generator.
Advice 3: How to make a motor
To make the electric motor is not difficult. Build this simple device does not require special costs, will not take much time, but will take a lot of pleasure for you and your children. Assemble the motor together and watch him work.
You will need
- -battery or AA battery;
- -holder with contacts for the battery;
- -1 meter of wire with enamel insulation (the diameter 0,8-1 mm);
- -0,3 meters of bare wire (diameter 0.8-1 mm).
The Assembly of the motor start from winding the coil. Take the wire with enamel insulation. You will get a smooth winding if you use a winder suitable base, for example, a battery. Leave 5cm free at each end of the wire and wind about 15-20 turns on the base. Do not try to wrap very tightly.
Carefully remove the coil from the frame, do not damage the form. The free ends of the wires wrap around received coils. Leave about 1cm of wire for installation of the coil holders. Make sure that the coils, which are obtained by winding the ends of the wire were exactly opposite each other. To ensure that the current could pass freely from the holder on the spool and the motor worked fine, remove the insulation at the ends of the wire coil. With a sharp knife remove the upper part of the insulation so that the lower half of the end of the wire remained in isolation. Be careful! Non-insulated edges of the wire should be at the top of both ends of the coil.
Holders for coil manufacture of non-insulated wire. This turns of wire supporting coil. Take the 15cm wire, just wrap a piece of wire around a small nail, for example.
As the motor base, use a battery holder. It is quite heavy, so the engine does not vibrate during operation.
Collect all the engine parts together. The holders for the coil attach to the battery or the AA battery. Insert the battery into the holder. Coil install the holders. Now put the battery on the magnet and push the coil. Motor earned.
To stop running the motor, just disconnect the chain. For example, remove the spool holders.