No matter how good the thing in the house is, it eventually becomes worthless. People throw them away so that these things do not gather dust at home and do not occupy space. From the old furniture or various electrical appliances you can make a lot of different crafts, which will always be useful in the household. This can be attributed to the washing machine. And if the washing machine is old, then do not rush to send it to the dump. It is better to disassemble this machine according to the details. Any detail will fit to create homemade. And if the electric motor is in order, then it will leave quite a decent sharpened tool sharpening.
1 Removal of electrical equipment from the washing machine
- 1.1 Engine disassembly and lubrication in bearings
- 1.2 Part-time shank
- 1.3 Motor assembly
- 1.4 Installation of the engine on the frame
- 2 Connection of an electric motor to the mains 220 V
Removal of electrical equipment from the washing machine
So, for the manufacture of grinding machine use
Engine disassembly and lubrication in bearings
Engine also dismantled. When disassembling it is desirable to use the pullers. After the rotor has been removed, it is advisable to remove and check the condition of the bearings. If they are unsuitable, then just change new ones. And if their condition is normal, then we wash them, and put in there a fresh lubricant. Well suited lubricants Ciatim 221, Ciatim 201 and Litol 24.
Before assembly, it is necessary to cut M12 threads with a 1.25 pitch on the shaft end. It is advisable to do this on a lathe in order to avoid unwanted beats of working tools. This is necessary for winding and fixing on the shank of the standard chuck used for the drill. And he just has such landing parameters. The clip of the cartridge is designed for a diameter of 12 mm. Having such a cartridge, we provide an easy replacement of the tools used in the work.
The assembly is carried out in reverse order to how it was disassembled. We assemble the engine itself carefully, so as not to damage the windings and hull covers.
Install on the engine special connecting block for reliable wire connection.
Working on the sharpener, we get dust and dirt. To prevent it from getting into the engine, it is necessary to install a protective washer on the engine from the side of the working tool. Leave a small gap between the motor and the puck. It is necessary for the free passage of air, which cools the motor windings.
Installation of the engine on the frame
Now, it is necessary to fix the electric motor on the bed. To do this, take the corners the size of 50 to 50 mm. We fix them to the frame with M6 bolted joints. And to the corners fasten the engine to the native bolts M10. The shaft axis from the bed is at a height of 140 mm. This allows the use of various tools for processing and sharpening products. Such as grinding stones, discs.
All homemade cover is closed. It is made from sheet metal. He is going on rivets. For access to homemade parts, the back wall of the casing is removable. For good ventilation, which is needed to cool the motor homemade, holes are drilled in the back wall. The homemade casing is attached to the frame with self-tapping screws. On the side of the casing we mount the switch.
To expand the capabilities of sharpening, we independently produce some tool nozzles or buy them in the trade network.
So, the mechanics itself sharpened, ready.
Connection of an electric motor to the mains 220 V
Now we have to carry out the correct connection of the engine from the washing machine. Very good if wires marked. Then problems should not arise. Everything is connected as it was connected before disassembly. The condenser is fixed on the bed with collars with their fixation with M5 bolts. It would be good to bring the conclusions from the engine directly to the block. But if the labeling of the wires was not done and while they were engaged in mechanics, all the connections were forgotten, then you will have to work a little and remember the electrician.
So, we have an engine known. This is the AD-180-4 / 71S1U4, 180 watts. He has four conclusions. This is a single phase motor that has two windings. One working, and the other starting. In order to find out where we have a working and starting winding, take a tester. Install it on an ohmmeter and measure the resistance of these two windings. In which the winding resistance is greater, then the starting one, and less - then working.
Denote the conclusions of the windings of our electric motor. The beginning of the working winding is denoted by C1, and the end - C2. The start of the starting motor winding is P1, and the end is P2. Now, you need to check insulation quality winding wires. A 500V megger is required for this job. We measure insulation resistance, it should be 0.5 mΩ or more.
We make the scheme where the working winding, through a toggle switch, is connected directly to the network. The starting winding is connected through a capacitor (not electrolyte). Since our sharpener has a small starting moment, then no additional installation of the capacitor is required at the time of starting. After marking the conclusions, we proceed to the assembly of the engine start-up scheme. The terminals on the block also mark. The top row of terminals denote from left to right, 1,2,3,4. Mark the bottom row from right to left, 5,6,7,8. We connect the leads from the windings to the terminal blocks as follows:
- Conclusions from the working winding C1 and C2 are connected respectively to the terminals marked 1 and 2.
- Conclusions from the starting winding P1 and P2 respectively to terminals 3 and 4.
- Connect the wire from terminal 8 pads to one of the terminals of the toggle switch.
Now we take a two-wire network wire. On one side of the cable, we connect one end to terminal 7 and the other to the terminal of the toggle switch. On the other hand, the ends of the cable are connected with an electrical plug.
Now, it is necessary to connect in series to the starting winding of the engine, a capacitor mounted on the frame. To do this, we connect the soldered wires from the capacitor to the terminals pads 4 and 5. To complete the connection process, do the following.
Jumper between the following terminals pads:
- 1 and 8.
- 8 and 5.
- 3 and 6.
- 2 and 7.
- 7 and 6.
Connection is complete.
Sharpened ready to work.