Motors from washing machines have average technical indicators, so the area of their use for the manufacture of machines is not so extensive. For some projects they are weak, for others they are too slow. By applying this idea, you can make them 3 times more powerful or faster.
Materials:
- washing machine motor;
- speed controller -
- gearbox from a grinder;
- Sheet steel;
- blank for adapter coupling;
- nuts and bolts.
Gearbox connection process
The engine is dismantled.
The pulley is removed from it. You need to make an adapter coupling under its shaft. On one side it should be put on the shaft, and on the other it should be equipped with an M14 internal thread.
It is best to turn the coupling on a lathe. If it is absent, you can cut an M14 thread in the workpiece up to half and screw it onto the grinder. Then the blank is ground on a sanding belt and drilled from the free end. Moreover, it is she who should rotate due to the grinder, the drill itself remains motionless. A coupling made this way will have a balance no worse than one turned on a lathe.
The gearbox is removed from an old grinder.You need to cut its armature in half, and then free the input shaft.
A base is made of sheet steel under the engine. It is installed on it. Using a coupling, the secondary shaft of the angle grinder is connected to it. To mount the gearbox, an adapter plate is made from sheet steel, which is welded to the base.
The engine is connected via a speed controller. Now, when starting, the shaft on the gearbox will rotate 3 times faster, which will allow you to attach a flexible shaft to the drill. If you connect the gearbox in reverse, the force will increase 3 times, but the speed will drop.
