Motors from obsolete washing machines can become the basis of new appliances whose work is based on rotation. For example, you can make an emery for sharpening knives, powered by electricity, as well as a mixer and much more. This will be discussed in the article.
Types of engines
The rotation of the shaft of the washing machine is carried out by the engine. It has various design features. The motor may be of a collector, asynchronous or electronic type.
Motors from washing machines are removed in different ways. First of all, you should disconnect the washing machine from electric power, sewer network and water supply. In this condition, the unit must be at least 10 hours. During this time, the capacitor will be able to discharge. Only then can you start to remove the motor.
How to remove an induction motor?
The wires connecting the induction motor and capacitor should not be cut. The battery is pulled out with the engine. There are many types of batteries. It may look like a metal or plastic box. Typically, the battery is a sealed design. It contains one or more capacitors, the connection between which is parallel.
The unit connection diagram is also different. The winding can be connected directly to the network. Another modification involves the passage of current through a capacitor. The existing scheme cannot be changed. It must be connected to the power supply, and the induction motor will begin to rotate.
Do not touch the engine parts until the capacitor is discharged.
How to dismantle the collector type of motor?
The engine from the washing machine of the collector circuit belongs to the category of low-voltage modifications. On the stator are permanent magnets connected to a constant voltage.
There is a sticker on the motor that indicates the voltage necessary for operation. Connecting the motor from the washing machine of the collector configuration involves the supply of precisely this indicator.
Electronic motor
The electronic circuit is removed from the washing machine along with the control unit. The voltage indicator to which the motor should be connected is indicated on the block case. It is very important to observe the polarity, since this type of motor does not imply reverse.
It happens that connecting the engine from the washing machine is not carried out immediately. In this case, it is recommended to find other conclusions to which the zero phase or logical unit is fed. After that, the unit will begin to rotate.
How to connect the electric motor of a modern washing machine?
If you decide what to do with the old motor, then you will probably be interested in how to connect the electric motor to a voltage of 220 V.
Before proceeding with a direct connection, it is advisable to familiarize yourself with the electrical circuit. First of all, pay attention to the wires coming from the engine. At first glance, there are quite a lot of them, but in fact, not all of them will be needed. For work, only rotor and stator wires are needed.
How to deal with wires?
If you look at the front of the block, then, as a rule, the first two wires located on the left belong to the tachometer. They are responsible for adjusting the engine speed of the washing machine. These wires are not needed for operation.
This is followed by stator wires of red and brown color and rotor wires of gray and green color. These four wires will be required to connect the motor.
In different versions of washing machines, the wires will vary in color, but the principle of their connection remains unchanged. You just need to find the right ones by calling them with a multimeter. To this end, you should switch the device to measure the resistance force. One probe should touch the first wire, and the second look for its pair.
In a tachogenerator in working condition, the resistance value is 70 Ohms. These wires are noticeable, but they are not needed.
Automatic washing machine
How to connect the engine from the washing machine? After the necessary wires are found, they must be connected.
To this end, connect one end of the stator winding to the rotor brush. It will be better to make a jumper and isolate it. After this, the end of the rotor winding and the wire that leads to the brush remain. These two ends are connected to the network. As soon as voltage is supplied to these wires, the motor will begin to rotate.
Motors from washing machines have a high level of power, so you should be careful not to injure yourself. It is advisable to mount the motor on a flat surface.
If you want the direction of rotation of the motor to change, then you should throw a jumper on the other contacts and swap the wires of the rotor brushes in places.
If everything is done correctly, the motor will begin its rotation. If this does not happen, then you should check the working condition of the engine and only after that draw any conclusions.
It is not difficult to connect the motor of a modern washing machine, which cannot be said about old models. Their scheme is different.
How to connect the motor of the old unit?
Engines from washing machines that have served for many years are harder to connect. To find the wires, you should ring all the motor windings. So you will find couples.
The multimeter is in resistance measurement mode . One end should touch the first wire, and the second in turn to look for its pair. Winding resistance indicators are advised to be written. They will be needed.
Then, by a similar method, a second pair of wires is found and the resistance indicator is fixed. There are two windings with different resistance indicators. It should be determined which of them is the working winding, and which is the starting one. A clue is a resistance indicator. The winding in which it is smaller is working.
Many believe that the start of such an engine is carried out by means of a capacitor. This is a wrong opinion, since the capacitor is used in engines of another modification, in which there is no starting winding. In this case, it can contribute to the burning of the motor during its operation.
To start this type of engine, you need a button or relay to start. The button must be equipped with a non-latching contact. You can use the doorbell button.
The connection diagram of the engine from the washing machine looks like this: 220 V is supplied to the field winding (OV). The same voltage is applied to the starting circuit (ON), only with the aim of starting the engine for a short period of time. To turn it off, use the (SB) button.
After all the manipulations, it is enough to start the engine. To this end, the SB button is pressed and, as soon as the motor starts rotation, is released.
To ensure reverse (rotation of the motor in the opposite direction), interchange the contacts of the winding.
Is it possible to give a second life to the motor of an old washing machine?
Many people wonder what to make of the engine from the washing machine. The working motor of the collector circuit is suitable for the design of a variety of devices. Some of them will be considered in this article.
Grinder
Any man can do it if he has a motor from the washing machine Indesit, Ariston and any other model.
When attaching a sharpening stone to the engine, the manufacturer may encounter a problem: the diameter of the stone hole does not correspond to the diameter of the motor shaft. It is advisable to use an additional part that is machined on a lathe. The manufacture of such an adapter is not complicated. The main thing is to know the indicator of the diameter of the shaft. Not only an adapter should be available. You must also prepare the nut, washer and special bolt.
The thread on the nut is cut depending on which direction the engine will rotate. For clockwise rotation, a left-handed thread is made, and counterclockwise is a right-handed thread. If you do not adhere to this rule, then the stone will begin to fly off, as the process will go on unwinding.
If there is a nut with a thread that is not suitable in direction, then you can change the direction of rotation. To this end, the wires of the winding are interchanged.
You can set the motor to reverse rotation without using a capacitor. After the working winding is connected to a voltage of 220 V, the stone scrolls sharply in the right direction.
The speed indicator of the grindstone should not exceed 3000 per minute. Otherwise, the stone will burst.
When using such a unit at home, experts advise using a motor with a frequency of 1000 rpm.
Do-it-yourself sharpening machine must be equipped with additional elements. They will serve as protection against dust and stone fragments during operation.
A piece of metal about 2 mm thick can be used as a casing.
How to make a vibrating table?
Using the engine from the washing machine, an automatic machine of the company "Ariston", "Ardo" and others, it is possible to make a vibrating table. It is needed for the production of tiles for laying out garden paths.
The design of the vibrating table is not difficult. It includes a flat plate, fastened to the base with movable joints. The operation of the collector motor drives the stove. As a result, air is pumped out of the concrete, which makes the quality of the tile higher.
The position of the collector motor is set in accordance with the diagram. If it is installed in the wrong place, then the table will not be able to function correctly, and the production of high-quality tiles will fail.
How to make a concrete mixer?
The engine from an old washing machine can also be used to create a concrete mixer. This product is not intended for industrial volumes, but is quite suitable for household needs.
To make a concrete mixer from an old washing machine, you will need not only a motor, but also a tank. A pair of blades that look like the letter āPā is inserted into the tank of the tank with the activator. The standard activator should be removed from the tank beforehand. Making the details is easy. For this purpose, a strip of steel with a thickness of about 5 mm is taken. The right amount of material is cut from it, which is bent. The two blades are arranged so that they make a right angle. They are connected to the tank through the hole where the activator was located.
The hole in the tank through which the water is drained must be closed. With proper assembly of the structure, you can connect the engine.
Depending on how much concrete you are going to knead, an indicator of engine power is selected. With a small volume, you can mount a motor with a single phase. If large volumes of concrete are to be mixed, a more powerful aggregate is installed.
Keep in mind the temporary transfer. It must be replaced by a gearbox. It will reduce the engine speed.