Emery from the engine from an old washing machine. How to make emery from a washing machine engine

Often a situation arises when it is necessary to sharpen a tool or sharpen knives. To perform these works, a grinding machine is best suited - it is also called a sharpener or emery. This is the simplest power tool, which consists of electric motor and abrasive wheel. Many options are sold in the distribution network, which differ from each other in price and manufacturer, but are designed to perform one function - sharpening cutting tool. Do not rush to purchase a factory-made electric grinder: any House master able to make it with his own hands in the presence of the necessary spare parts.

To make emery yourself, first of all, you need to choose a suitable electric motor. Most often this is a motor from washing machine old-style, for example, Malyutka - it is the best suited for this purpose. Such a motor meets certain requirements: its power is in the range of 100-200 W, and the speed does not exceed 1500 rpm. If the speed is higher, then there is a danger of destruction of the abrasive wheel.

High engine speeds are needed for polishing parts, but they are not suitable for sharpening.

To make homemade emery, you can use any another electric motor. It must meet certain parameters.

1. Shaft rotation should be minimal. Motors with no more than 1,000 rpm are best suited.
2. The motor power must be between 100 W and 1 kW. The most commonly used motors are 400 watts.
3. It is desirable that he had paws for fastening.
4. A single-phase or asynchronous motor is best suited, designed to be connected to a 220 volt network.

Algorithm for assembling emery from the engine from the washing machine Malyutka

First of all, we do frame of the future mechanism. It can be made from thick wooden board, wood board, suitable plastic, but a thick metal plate is best. An electric motor is fixed to it with the help of brackets, corners or clamps. The connection of the electric motor with the stone occurs through a flange.

Homemade flange

Flange manufacturing- one of the technically complex operations in the assembly of homemade emery. It is usually done with a lathe. To do this, it is necessary to measure the diameter of the output shaft and the abrasive wheel that will be used in the grinding machine. However, if there is no lathe at hand, you can do without it. In the video below, you can see how to make an emery flange from improvised material yourself:

Flange fixing on the shaft is done with a nut with a bolt and a washer. In this case, the direction of rotation of the shaft must be taken into account: the thread on the nut must be in the opposite direction.

This is done for safety reasons so that during operation the nut does not unwind due to the vibration of the machine, which is fraught with the abrasive wheel flying off and injuries.

Finally, it remains to mount the electric grinder on permanent place and bring electricity. Emery from the engine from Malyutka is ready.

In the case of using an engine dismantled from an automatic washing machine, a grinding machine can be made in the same way, the difference is only in connecting electricity. The motor from an ordinary washing machine has four wires: two are connected to the working winding, and the other two to the starting one. To determine the working winding, it is enough to measure the resistance of both. The resistance of the starting winding is 30 ohms, and the working winding has only 12 ohms. The engines of modern cars have six leads, two of which are the output of a tachometer with a resistance of 70 ohms. Finding them will not be difficult. These wires must be insulated.

Wiring diagram is as follows: both windings are connected in parallel and connected to the network, and a button is connected to the break in the starting winding. To do this, you can take a launcher or adapt a button from a doorbell.

How to adapt a drill and a grinder for an electric grinder

You can make emery not only from a suitable electric motor that is available. To do this, you can adapt a power tool - it can be electric drill or a screwdriver.

The latter is worse suited for these purposes: it has insufficient power and a short battery life.

Making a sharpener from a drill starts with nozzle purchase.

A grinding stone is fixed in it, and then clamped into a cartridge. It remains to fix it on a fixed base using a special mount, which can be bought at a store that sells power tools. With the help of such an electric grinder, you can fix an ax, sharpen a kitchen knife or fill a drill.

In case of emergency, a sharpener can be made from Bulgarian. To do this, you do not need to purchase special fixtures and mandrels necessary for attaching emery. It is only necessary to fix it in a horizontal position on a massive base, install a standard cutting or grinding disc, and the sharpener is ready to work.

Mini sharpening machine

An electric sharpener is necessary if the master doing modeling: when working, it is often necessary to undermine small parts. A large sharpener is not suitable for small work, so they often make mini-emery with their own hands. The assembly algorithm is as follows:

• take the engine from hard drive computer or children's toy;
• the tension sleeve of the spoke from the moped is soldered to the engine axis;
• a small grinding wheel is screwed with a screw and washer to the shaft;
• connect the power supply;
• fix the device on the frame, and the emery is ready.

Often, electric motors from a faulty sewing machine are used for these purposes. The advantage of this machine is that the engine has a speed controller, and this expands the capabilities of the device. It can be successfully used and like a polishing machine.

Safety precautions when working with a homemade device

When making power tools on your own, you should strictly observe safety precautions. If industrial units are equipped with protective equipment, then in homemade devices you will have to make them yourself. You should be aware that the operation of the sharpener from the engine of the washing machine without protective cover prohibited. It can be made from sheet metal 2.5 mm thick.

The working circle during sharpening experiences strong vibration. To prevent the destruction of emery during operation, when installing a stone, cardboard gaskets are placed under the metal washers. You should also make sure that the disc is not cracked.

During operation, you should stand to the side of the circle so that if it breaks, the fragments do not fly into the operator.

Dear visitors of the site "Visiting Samodelkin", from the material presented by the author, you will learn how you can independently make a full-fledged emery from the engine from washing machine and install, for example, in your workshop or garage.

For a craftsman, this machine is simply irreplaceable, because something constantly needs to be sharpened, sharpened). Buy factory sandpaper good quality today it will be a little expensive, but it makes no sense to take a cheap one, because its age is not long. The best option is to make emery yourself, the tradition of using engines from washing machines to make this machine has been going on since the days of the USSR. Surely many still have such emery and work fine for several decades)

And so, let's look at what exactly the master needed to assemble the emery?

materials
1. engine from a washing machine. 220 v 2826 rpm 370 W
2. 2 capacitors with a capacity of 3 microfarads
3. grinding wheel
4. corner
5. professional square pipe
6. rubber stoppers from vials with antibiotics
7. switch (tumbler)
8. wires
9. fork
10. galvanized sheet
11. engine mounting flange
12. bolts, nuts, washers, grover
13. paint
14. solder
15. electrical tape

Tools
1. grinder (UShM)
2. welding machine
3. drill
4. vise
5. metal ruler
6. marker
7. hammer
8. metal scissors
9. screwdriver
10. wrench
11. soldering iron
12. pliers
13. knife
14. brush
15. tap

Step-by-step instructions for assembling emery with your own hands.

As mentioned above, the best option is to use the engine from a washing machine, for sure many have old washing machines that are still a pity to throw away or scrap) so remove the motor and make a grindstone) This is what the heart of the machine looks like.

TTX must be indicated on the case, or on a plate screwed to it.

A grinding wheel can be purchased at the store, but many thrifty owners have a lot of such stuff in the garage.

Making a counter bolt.

The risk is sawn under a screwdriver.

Twisted.

Transfers the outline of the pattern to metal corner.

Saws with a grinder.

Trial fitting and fitting.

The support frame of the grinding machine will be made of professional pipes of rectangular and square sections.

The workpiece is attached to the workbench with a clamp, the author makes a cut with a grinder.

Trying to match with another pipe.

This is how it will look like in the future.

A piece of metal is cut off at the edges to fit the supports.

Sample again.

For an uninterrupted start of the engine, 2 capacitors were taken and interconnected like this.

Tries to insert elements in their rightful place.

Everything fit perfectly, re-assembles the design for evaluation.

The surface of metal parts is carefully polished with a grinder and a metal brush.

After that, the master proceeds to welding the machine frame itself.

Welds the engine mount.

Installs capacitors.

Then he grinds it with a flat file.

The same operation is carried out on the other side.

This is the final detail. These holes are used to move the table along the guides,
and the working surface of the table itself will be smooth.

Additionally, the rack and the tabletop itself are sawn out.

Welded into a single structure.

Cleaned up.

Trial installation.

This is how it should look.

With installed grinding wheel.

As you understand, the table can be moved and pushed back, after loosening the mount.

After that, the threads necessary for the installation of rubber plugs are cut in the legs.

In order not to stain the workbench with paint, it is necessary to place a newspaper under the painted object)

Here they are rubber stoppers from bubbles.

Screwed directly to the legs.

Here is what we end up with.

To turn the emery on and off, the master connects a switch.

Connects wires.

Attaches to the machine body.

Marks the center.

Drilling and fitting.

An old washing machine is a great building material a large number useful household appliances. From different parts of the unit, you can make a brazier, a smokehouse, a preservation sterilizer, a grinding wheel, and even a concrete mixer. Quite often, owners of Soviet-style washers assemble a grinding device or emery from an engine. It is not difficult if the motor is in good working order, you have thought out the method of attaching the emery wheel to the shaft, and prepared all the auxiliary parts, tools and fasteners.

In terms of power and configuration, the electric motor from old-style washing machines is ideal for portable homemade emery. As a rule, for this purpose, motors from units such as Siberia, Volga or Vyatka are used. Approximate characteristics should be as follows:

• mains voltage - 220 V;
• power - up to 370 W;
• rotation speed - no more than 3 thousand rpm.

Attention! If you construct an emery from a more powerful type of engine, a significant number of revolutions can simply break the grindstone in the process.

The parameters of the engine are necessarily indicated on its body. For the manufacture of emery, a device with a power of 100-150 W and 1-1.5 thousand rpm is sufficient. He will quite cope with household sharpening of repair equipment and kitchen utensils.

A faster grinder (for example, emery based on common engines with 2.8 thousand rpm) is appropriate to use for grinding or polishing parts. In this case, the emery stone should be stronger, and the main fastener, the flange, should be better and stronger.

Advice. To assemble emery from the engine with your own hands, you can use both a 1-phase and a 3-phase motor.

What materials and tools are needed for homemade emery

Take care of all the accessories in advance. You will need electrical equipment:

• capacitor and switch (can be removed from the same washing machine);
• wiring;
• plug with cable.

Materials for processing the engine for emery:

• flange;
• a small piece of galvanized sheet;
• a grinding wheel (you can even have a set of stones with different grain sizes to change depending on your needs).

Elements for assembling the emery support frame:

• a pipe with a wide rectangular section;
• two pipe segments with a smaller section of the same shape;
• a couple of corners;
• rubber pads.

Accessories for the emery table:

• square pipe;
• metal plates - 2 pcs.;
• nuts and bolts.

Tools:

• welding machine;
• drill;
• hand files;
• Bulgarian;
• vise and clamp;
• locksmith and measuring devices;
• electrical tape with a fabric base;
• angle grinder.

Advice. At the end of the work, it is better to cover the metal parts of the emery with primer paint.

First of all, take care of fixing the stone on the motor shaft. For these purposes, a flange is used, but without a lathe, it is quite difficult to fasten both parts. It is better to resort to the services of a specialist. His tasks:

• prepare a flange for reliable connection with the shaft;
• secure the contact with a washer;
• make a thread on the flange that would fit the sleeve nut and not contradict the direction of rotation of the engine.

If the shaft rotates counter-clockwise, you will need a right-hand thread, and vice versa. Otherwise, the nut will unwind during operation. This is against safety precautions, as the whetstone may fly off. Make a sleeve from a pipe, for example, with a section of 32 mm. Put a circle of emery on it. The gap between the motor shaft and the pipe should be compensated by uniform twisting of electrical tape.

Assembling emery from a washing machine engine

The process of assembling the basis of the future grinding device takes place in a vice. After almost every action, fitting and fitting is required so that the device will work without failures in the future. During the layout of the emery, you can focus on auxiliary photo and video instructions.

1. Make a drawing based on the basic parameter - the dimensions of the engine. Consider the dimensions of the support and bed.
2. Make a pattern of elements of supporting and fastening structures.
3. Transfer the contours to the metal corner. Cut out the details with a grinder.
4. Make a support frame for the emery. Fix the blanks of the rectangular section pipe on the workbench with a clamp. Saw where necessary, grinder. In a pipe with a larger cross-sectional area, grooves must be cut at the edges in order to connect to the side of pipes of a smaller area.
5. Cut a window in the larger pipe, which will be a technological hole for the capacitors. They need two. Connect the terminals of the parts together with parallel wiring.
6. Insert the capacitors into the recess. If everything connects perfectly, disassemble the structure and carefully sand all metal surfaces.
7. All structural elements of the emery are welded to each other.
8. Make a table on which the part will be located during the turning process. Metal, 3 mm thick, will be strong enough for these purposes.
9. Paint the bed. Fasten the engine housing with the wheel to the machine, covering it from sparks and scales from getting inside. To do this, cut a round casing from galvanized sheet.

The work is completed by assembling the circuit and connecting it with capacitors. This is the easiest way self assembly emery from the washing machine motor. The tool is reliable. With proper maintenance, it will serve you for more than one year.

How to make a sharpener: video

An old washing machine is an excellent material for constructing a large number of useful household appliances. From different parts of the unit, you can make a brazier, a smokehouse, a preservation sterilizer, a grinding wheel, and even a concrete mixer. Quite often, owners of Soviet-style washers assemble a grinding device or emery from an engine. It is not difficult if the motor is in good working order, you have thought out the method of attaching the emery wheel to the shaft, and prepared all the auxiliary parts, tools and fasteners.

In terms of power and configuration, an old-style electric motor is ideal for a portable homemade emery. As a rule, for this purpose, motors from units such as Siberia, Volga or Vyatka are used. Approximate characteristics should be as follows:

• mains voltage - 220 V;
• power - up to 370 W;
• rotation speed - no more than 3 thousand rpm.

Attention! If you construct an emery from a more powerful type of engine, a significant number of revolutions can simply break the grindstone in the process.

The parameters of the engine are necessarily indicated on its body. For the manufacture of emery, a device with a power of 100-150 W and 1-1.5 thousand rpm is sufficient. He will quite cope with household sharpening of repair equipment and kitchen utensils.

A faster grinder (for example, emery based on common engines with 2.8 thousand rpm) is appropriate to use for grinding or polishing parts. In this case, the emery stone should be stronger, and the main fastener, the flange, should be better and stronger.

Advice. To assemble emery from the engine with your own hands, you can use both a 1-phase and a 3-phase motor.

What materials and tools are needed for homemade emery

Take care of all the accessories in advance. You will need electrical equipment:

• capacitor and switch (can be removed from the same washing machine);
• wiring;
• plug with cable.

Materials for processing the engine for emery:

• flange;
• a small piece of galvanized sheet;
• a grinding wheel (you can even have a set of stones with different grain sizes to change depending on your needs).

Elements for assembling the emery support frame:

• a pipe with a wide rectangular section;
• two pipe segments with a smaller section of the same shape;
• a couple of corners;
• rubber pads.

Accessories for the emery table:

• square pipe;
• metal plates - 2 pcs.;
• nuts and bolts.

Tools:

• welding machine;
• drill;
• hand files;
• Bulgarian;
• vise and clamp;
• locksmith and measuring devices;
• electrical tape with a fabric base;
• angle grinder.

Advice. At the end of the work, it is better to cover the metal parts of the emery with primer paint.

First of all, take care of fixing the stone on the motor shaft. For these purposes, a flange is used, but without a lathe, it is quite difficult to fasten both parts. It is better to resort to the services of a specialist. His tasks:

• prepare a flange for reliable connection with the shaft;
• secure the contact with a washer;
• make a thread on the flange that would fit the sleeve nut and not contradict the direction of rotation of the engine.

If the shaft rotates counter-clockwise, you will need a right-hand thread, and vice versa. Otherwise, the nut will unwind during operation. This is against safety precautions, as the whetstone may fly off. Make a sleeve from a pipe, for example, with a section of 32 mm. Put a circle of emery on it. The gap between the motor shaft and the pipe should be compensated by uniform twisting of electrical tape.

Assembling emery from a washing machine engine

The process of assembling the basis of the future grinding device takes place in a vice. After almost every action, fitting and fitting is required so that the device will work without failures in the future. During the layout of the emery, you can focus on auxiliary photo and video instructions.

1. Make a drawing based on the basic parameter - the dimensions of the engine. Consider the dimensions of the support and bed.
2. Make a pattern of elements of supporting and fastening structures.
3. Transfer the contours to the metal corner. Cut out the details with a grinder.
4. Make a support frame for the emery. Fix the blanks of the rectangular section pipe on the workbench with a clamp. Saw where necessary, grinder. In a pipe with a larger cross-sectional area, grooves must be cut at the edges in order to connect to the side of pipes of a smaller area.
5. Cut a window in the larger pipe, which will be a technological hole for the capacitors. They need two. Connect the terminals of the parts together with parallel wiring.
6. Insert the capacitors into the recess. If everything connects perfectly, disassemble the structure and carefully sand all metal surfaces.
7. All structural elements of the emery are welded to each other.
8. Make a table on which the part will be located during the turning process. Metal, 3 mm thick, will be strong enough for these purposes.
9. Paint the bed. Fasten the engine housing with the wheel to the machine, covering it from sparks and scales from getting inside. To do this, cut a round casing from galvanized sheet.

The work is completed by assembling the circuit and connecting it with capacitors. This is the easiest way to self-assemble emery from the washing machine motor. The tool is reliable. With proper maintenance, it will serve you for more than one year.

How to make a sharpener: video

Do you have an old washing machine that is beyond repair? Do not rush to get rid of it, from this article you will learn how to make emery from the engine of a washing machine.

A homemade sharpener from a motor is always useful on the farm and for household needs. Moreover, industrial emery is expensive in stores, while a grinder from an automatic washing machine will cost free.

What is emery for?

An emery machine is useful for such work:

• Restoration of the cutting qualities of the drill. In order not to buy new drills, you need to know how to sharpen old ones. While working with a drill, the drill gets very hot, which is why it constantly becomes dull. Having sharpened it on the machine, you can use it many more times.
• Sharpening of knives, scissors, shovels and other tools. Thanks to homemade machine from the washing engine, your knives will always be sharpened, and the scissors will cut perfectly. This does not require much effort.
• If you replace the emery wheel with a polishing wheel, you can easily process products and parts.

Using the motor from the washing machine, you can make a sharpening machine with your own hands. To do this, you will have to buy only one part - an emery wheel. All other components are in the motor.

Which engine is suitable for making emery

Wondering which engine to use? You can use any motor from a washing machine, even the Vyatka, Riga or Volga brands. The main thing is that it has enough power.

For the normal operation of the grinder, a power of 100-200 W is enough, with 1000-1500 rpm. For particularly large parts, a 400 W motor is suitable. But if the engine speed reaches 3000 rpm, it needs to be adjusted or a very strong disk installed.

What you need to create emery from a washing machine motor

To make a simple grinder you will need:

• washing machine engine;
• flange;
• sleeve;
• nozzle on the electric motor (emery wheel);
• casing for protection;
• support;
• starting device.

When buying, it is better to choose a product with two circles: a finishing and a rough version.

You also need to make an adapter with a flange. Since the size of the shaft does not match the hole of the grindstone, an adapter must be made. You can execute it on lathe, having previously determined the dimensions and completed the drawing. On the diagram, it is necessary to note the diameter of the shaft and the emery hole.

The flange on the shaft can be made independently. A piece of pipe with a diameter of 32 mm, no more than 200 mm in length, will do. It should fit perfectly on the motor shaft. On one side of the flange, a thread is made, the direction of which depends on the direction of movement of the shaft. When sent to the engine, the other end of the flange is heated and pressed.

Be sure to secure the flange after installation. This can be done by welding or bolting by drilling a flange with a shaft.

The adapter from the shaft is ready. It remains to install the element for sharpening the cutters.

DIY steps for creating emery from a washing machine engine

For homemade device use a belt driven motor.

It remains to correctly assemble the device. After installing the flange, put on the shaft a nut with a washer, then a large emery wheel and again a nut with a washer.

Motor connection

How to connect the engine from the washing machine:

• Using a tester-multimeter, look for tachogenerator wires that show a resistance of 70 ohms (usually they are white). We will not use them.
• There are four wires left. Using a multimeter, you need to determine the paired wires.
• Connect the wires leading to the stator and to the electric brushes. The remaining wires must be connected to the wire and plug at the end, and then connected to the network.
• Connection points must be isolated.

Immediately after connecting, the motor for homemade emery will start working, and you will be able to evaluate the functionality of the device.

Connecting the electric motor of Soviet-made washing machines differs from the previous version.

• Here you will find only 4 wires. Need to find a couple.
• Take a multimeter, measure the readings of each of the wires. You need paired wires with less resistance that go to the working winding.
• Connect these wires to the plug and connect to the mains.
• Now you need to make a launcher. You can use any button, for example, from a door lock. Connect one wire coming from the button to the starting wire (PO), and the other to the working wire (OB).

The motor is now connected. But before starting work, you need to thoroughly fix the machine in order to avoid an emergency.

How to put an emery machine and make protection

How to fix the emery machine and put protection on it? You can bolt it to a workbench.

To do this, use the bracket that is in the washing machine. To reduce vibration during operation, rubber gaskets are put on the corner, which can be made from a piece of hose.

If the device is installed on wooden workbench, cover it with a sheet of metal on top to avoid fire.

For your own protection, when using the machine, install a metal arc above the disc. You can also enhance the protection by attaching 5 mm thick Plexiglas to the pendants. The glass can be raised and lowered by means of suspension brackets.

Making your own grinder is easy. The main thing is to properly fix and connect it. Also follow the safety rules when working, use safety glasses and special clothing.