How to disassemble an anchor angular grinder on copper. Video: how to check the corner grinder

How to disassemble the anchor of the electric motor for copper

Electric motor. the basis of all electric drive mechanisms. It is used in the automotive industry, agriculture and other industries and is necessary for converting electric energy into mechanical, as well as for the tradition of rotational movement to various details and mechanisms. Engines are made from different types of metal, including colored: brass, copper, bronze. To protect against external influences, the elements of the electric motor are placed in a durable aluminum case.

The engines that have developed their resource and unsuitable for repair often throw away. But they can contain toxic substances, so their disposal must comply with the standards for the disposal of waste from the use of goods. They are approved by order of the Government of the Federation 970-r dated December 28, 2017. In accordance with the standards, the release of electric motors to a landfill is prohibited, and conditions and equipment are needed for disposal.

An alternative to expensive disposal

It is also profitable to save money and time, as well as to get rid of non.working engines will help specialized scrap metal reception points. It is important that the selected company has licenses of the Department of Nature Management and Environment of the Federation. These documents certify the right to organize with scrap of non.ferrous and ferrous metals, as well as with waste.

The licensed reception point can redeem the equipment assembly, but the price for 1 kg of scrap will be minimal. After redemption, experts will disassemble the electric motor for copper, aluminum, stainless steel and utilize the remnants of the equipment. If you want to help out more funds, you will have to make a little effort: find out how to disassemble the electric motor for copper, extract and, if necessary, burn the non.ferrous metal.

How to disassemble the anchor of the electric motor for copper

Before. transformers, electric engines. Cables got into the category. It’s easier to treat copper. they simply burned insulation, resin, gutted. Aluminum was abandoned: cheaper, more problems, melting point below.

Loses metal strength. value is reduced.

Checking the power circuits

When repaired of the failed electrical equipment, sometimes the case does not reach the repair of the collector engine. it turns out that the extension cord is faulty, the power cord is interrupted, the connection terminal is unscrewed, or the switch is stuck. The presence of voltage should be checked on the nodes of the supply electric motor for 220V, starting from the plug fork, ending with the contact block of connection.

Blind the power cord and the power button

Since the collector electric motors comparison of the electromagnetic fields occurs due to the constant switching of the rotor windings (collector brushes), the mechanical cause of the loss of electrical contact in the manifold is the most common. The principle of action of collector engines is described in the previous article, and the following will be given some tips for repairing and replacing the rotor contacts (anchor).

Rotor (anchor) of a collector electric motor

In various autonomous power tools, kitchen electrical appliances and children’s toys, direct current collector engine is often used. Power supply of electric motors is carried out by a constant voltage coming from batteries, rectifiers, or control controllers. The presence of voltage is not always indicated by the power of the power source (the battery can be planted), so the collector and the entire circuit is also checked when the collector electric motor is turned on.

Low.power collector engine engine with control controller

If the equipment of the equipment has stopped rotating, first of all, check the voltage to the input contacts of the collector engine when it is turned on.

Briefly about the device of collector electric motors

In collector electric motors, the magnetic fields of the stator and rotor interact at an angle that is as profitable as possible to give the shaft the moment of rotation. The rotation angle (rotor position) and at the same time switching system are collector brushes on the rotor. The system of coils with magnetic circuits creating the resulting electromagnetic field to give the moment is called an anchor.

The principle of action of a collector electric motor using a direct current engine example

In most collector electric motors, an anchor is an anchor whose electromagnetic field “clings” for magnetic fields of magnets or stator windings. Therefore, the word “anchor” is often understood as a collector engine rotor, since switching the stator windings is more complex and less effective.

Read also: How to squeeze the Internet cable yourself without compression

Collector DC electric motors with magnets are used mainly in children’s toys and in electric drive devices of cars. To create a powerful magnetic field and a stronger torque, excitation coils are used, which are connected in several ways:

The sequential connection (the current of the collector and coils of excitement is equal). The advantage is a large maximum moment, which, however, can be a lack of idle, unwinding the shaft of the collector electric motor to critically high speeds;
Parallel connection. The advantage is the good stability of the rotor of the collector engine when changing the load on the shaft, but the maximum moment is less compared to sequential excitement;
Mixed excitement, in which one part of the rotor and stator windings are connected sequentially, and the other is parallel. The most popular example of the use of mixed excitement in collector electric motors is a car starter;
Independent excitement, in which the current of the rotor and stator collector is regulated separately. It is used in powerful collector electric motors on electric locomotives.

Schemes of connecting excitation coils in a direct current engine

Leaving aside the theory, it should be noted that the collector drivers of direct current with sequential excitement can also work from alternating voltage, in fact, being universal. These engines have an additional conclusion for connecting alternating voltage and are widely used in various power tools, due to the “flexible” characteristics of changes in speed and the moment of rotation.

Excitement coils and designation of a universal collector engine

Checking the arousal coils

Based on the device of the collector electric motor, the search for malfunctions can be conditionally divided into checking the arousal coils (or permanent magnets) and the rotor windings. When repairing direct current engines with magnets, attention should be paid to them in search of cracks, since they worsen the tension of the magnetic field, which reduces the overall characteristics of the electric motor.

Collector engine section with constant magnets

The excitation coils are checked by an ohmmeter, checking their conductivity, as well as with a megammeter, excluding a breakdown on the case. Since the inter.seal closing in the turns of the excitation coil is extremely difficult to reveal, using only a multimeter, they use indirect methods, checking the color of wires of windings for the presence of traces of overheating or visible damage. Knowing the exact resistance of the arousal coils from the electric motor passport, you can compare data with the measurement results of an ohmmeter.

Since the inter.seal closing in the turns of excitation coils is a rare malfunction, they are limited only to checking these windings, transferring attention to the check and repair of the electric motor anchor. The anchor of the collector engine can be conditionally divided into several parts:

When he was perestroika, the masses were worried about how to disassemble the electric motor. They paid little, many, especially military units with rich property, sinned: they helped the state dispose of unnecessary mechanisms for free. Before. transformers, electric engines. Cables got into the category. It’s easier to treat copper. they simply burned insulation, resin, gutted. Aluminum was abandoned: cheaper, more problems, melting point below. Loses metal strength. value is reduced.

Electric engines of collector and asynchronous type

Typical household electric engines

Instead of disassembleing the electric motor for copper for delivery to the nearest point, we offer to study the structure (show how to break). Problems arise when gutting the stator, rotor.

The coils of the electric engine are collected by a similar principle. they are drowned into an isolated pre.grotto, sometimes clogged on top of the wedge. Due to the special shape of the hole, the design is firmly held in place.

Most people are not bothering with windings of electric engines: sidewalls are cut off with a corner grinder, the wiring is knocked out of the place. You will see on YouTube. The rollers discusses the repair of electric motors regarding rewinding coils.

The photo shows two typical household electric motor:

Collector engine U8330

The option on the left is presented and taken from the PHILIPS kitchen combine. We apologize in advance for the refusal to disassemble to the end, we need to remove the ring that deeply goes into the plastic gear. It is simply dangerous, an electric engine costs 2000. Found irrational experiment in this way. Photo shows: the shaft is removed after disassembling the bed (held by two long bolts).

The brushes are inconvenient (collector engine), there are a lot of copper here. Stator, rotor is equipped with windings. over, in the latter case, there are no wedges. Take a closer look, you can see: along the ends of the winding of the rotor (collector) of the electric engine are grabbed with glue. Dissolve, remove in another way it is possible to dismantle. At the stature, the pole is struck at all: a skein of copper was bent on the periphery.

A common thing for engines, when motionless coils are almost nothing holds.

Asynchronous engine

As you understand, the second option is an asynchronous electric engine. Removed from the household hood. Approximately so the simplest models are arranged. The electric engine has a massive magnetic circuit formed by two parts: internal, external. Due to the mass, the exhaust fan works poorly.

When installing under the weight of an electric engine, it gradually bends downward. The blades begin to cling to the case, the device rumble like a tank, grinds, makes other sounds. But disassemble the asynchronous electric motor is a cute business. The inner part of the magnetic circuit should be knocked out of the external, the insulators, the coils of the stator (for rewinding) will come out in parallel.

As for the rotor of the electric engine, it is made according to a short.closed scheme, to hand over the drum of Silumin for a favorable price will hardly turn out. If the item accepts, they will surely require the extraction of internal copper veins (indicated by oblique strokes on the surface). You will have to do, having enlisted the help of a chisel, a hammer, corner grinder.

We wish good luck in a stubborn desire to earn extra 30, breaking an electric engine at the cost of such efforts.

Copper wire with lacquer insulation is used to wind the coils of the electric engine. Apparently, you will have to use the solvent, removing the layer. The large mass of the wires of the electric engine corresponds to a significant weight of the varnish, it will cause objection from the side of the bargaining. For the most part, the insulation (Promprovod.OML.

ru) is performed on the basis of synthetic varnishes, for example, viniflex (VL 931). In terms of resistance to water, organic solvents, the material used in the manufacture of electric engines blocks the capabilities of the metalline (VL 941). Made on the basis of polyvinyl formal and phenol.formaldehyde resins will supply the coating with phenomenal resistance.

Heat.resistant enamels are formed by PE943 families (heaver acid, ethylene glycol, glycerin), PE939 (Lavsan). To increase impact resistance, stabilize immunity to heating, the compositions are modified by isocyanurat. Coatings resistance to heating reach classes F (155 C), H (180 C). Polythrimal varnishes are stronger in this regard of polyester. The solvent is the prezol in combination with coal solvent or xinol.

How to pull copper from an electric motor

We get copper from the old Soviet electric motor, chopped with a sledgehammer, cut it with a gas tank, fry on fire!

A simple way to get copper from the engine

Fast method of engine cutting. We take out copper and prepare for sale.

Some of the varnish is composed of substances on a natural basis (linseed oil). To improve qualities, the mixture is supplemented with synthetic resins, calcium rubber obtained from rosin. Kerosene is a solvent of varnishes. Good news: varnishes have poor resistance to solvents.

In industry, a thin copper wire clean with ant at a temperature of 80 degrees. Remember: the substance is extremely dangerous. Once on the skin, inside the respiratory system causes a variety of damage, most are irreversible. It is required to use hood, it is better to work in street conditions.

In some cases, firing is used, but not a thin wire. Burn out, there will be no trace. You need to watch the type of varnish in more detail, the brand of wire will help to find out. For example, some varieties dissolve ordinary alcohol. Shellac is characteristic. We believe that the technique should be simple, as safe as possible. hardly anyone wants to pay metal for the opportunity to pay health, financial well.being.

Disassemble an electric engine for repair

Illuminated aspects characteristic of a poor country: how to disassemble an electric motor for scrap. Add here: the magnetic circuit is formed by plates of good electrical steel, which is permissible to use, making transformers. Let’s see how to repair an electric engine. We will describe the components, since it is far from always the reason for the failure of the product will be burnt windings.

Suppose one winding of an electric engine stator broke. Wind up: the wire is laid out with a store, a small meter. Better than paying a couple of thousand, buying a new electric engine of the food combine. Funny, the wire is sold in cubic meters, kilograms.

Manual mechanical disassembly of electric motors and electric generators

Large large.sized electric motors and electric generators are pre.disassembled by hand. If possible, fixing bolts are unscrewed. Otherwise, various methods of mechanical or thermal cutting are used. The rotor is separated from the stator. Then various methods are used to separate the winding from the core.

The average electric motors (basketball size) with a capacity of up to 20 kW can be disassembled using various special machines that help pull out a copper winding or cut the stator.

How to disassemble the electric motor for copper: the fastest and most effective ways

An alternative to expensive disposal

What metals the electric motor consists of

Inside the electric engine are located:

Stator. motionless elements that perform the function of the magnetic circuit;
rotor. chassis consisting of turns of wires conducting electricity.

The design of the motor includes other metal parts made of aluminum, bronze, copper (bushings, a collector, conductive brushes, etc.). But not all engines are equipped with a copper winding. In the old technique produced earlier than the 1990s, aluminum turns are often found. Later it became known that they are less durable, and also form a galvanic pair with other metals and are very prone to corrosion.

Before extracting the winding in order to remove copper from the electric motor, it is important to determine its composition. But this is only possible for experienced people or those who can use the spectrometer. Such equipment is at the intake points of scrap metal.

Which engines can be handed over

The points of receiving metal scrap and secondary raw materials take such types of electric engines:

walking brownient, installed on milling machines and industrial equipment;
DC serpavigors suitable for robotic machines;
DC electric motors (DPT) used in drive tools, toys and equipment;
linear, used in electric transport, freight, pile and cutting special equipment;
compressors combining the functions of an electric drive and compressor, therefore used in household appliances and on electric vehicles.

If you do not know how to quickly disassemble the electric motor for copper, contact a specialized company. Its employees will come to the house and dismantle equipment, as well as carry out related work.

Features of passing engines for scrap

The electric motors are placed in an aluminum corps, produced using a copper winding, brass and bronze brushes, bushings and washers from non.ferrous metals. Metal engines are attributed to the class of collapsible metal debris (TURCHREMET). Therefore, small reception points are reluctant to buy electric motors and set minimum prices, despite the high valuable non.ferrous metals in the engine winding and generator.

But before pulling copper from the electric motor, keep in mind: the metal obtained as a result of the analysis of the motor is not clean. It contains special impurities that increase the specific resistance of the metal and limit the starting currents of the generator. The presence of impurities chews the metal, which is why the cost of scrap metal in many points is determined by gross weight. When calculating the current cost, the market situation, the current cost of copper, black scrap and cast iron are also taken into account.

Features of disassembling the electric motor

The best way to extract metals is the analysis of the electric motor. But, since it is not easy to get copper from an electric motor of household and industrial equipment, special tools are needed: a disc saw, sledgehammer, pliers, etc. First, the housing is sawn and open, and then cut part of the winding of the rotor and stator, which is further burned.

After cutting the case, the copper is relatively simple to extract, and before firing it should be thoroughly compressed (otherwise small elements will be scattered). A lump of copper wires must be formed so that the small and thin parts are inside, and the thicker and thicker parts are on the outside. After firing, do not cool copper with water: the risk of the metal will crumble.

After firing, a lump of wires should be tied and compressed in briquette using a sledgehammer.

Stages of disassembling the electric motor

If you want to know how to quickly disassemble the electric motor for copper at home, follow our recommendations:

First remove the lid and spin the fasteners located on the case;
Remove bearings (they can also be handed over to scrap metal);
Open the body and remove the rotor;
Remove the back cover and dismantle the shaft;
Up the joints, then remove the copper winding.

Elements extracted from the case should be sorted by composition and type. The collector and aluminum corps of the electric motor can be crushed into small parts with a pneumatic hammer with a special nozzle-toothyl. The nodes and elements containing copper are more convenient to cut into fragments in size from 1.5 to 2 cm. To extract aluminum from the electric motor, you need to warm up the rotor to about 7000C, withstanding it in a hot state for at least 90 minutes. This method will completely melt aluminum rods from the rotor.

Electric motor for scrap: disassemble and remove copper

What to do with an electric motor, who has already served his term or simply failed? Put on a scrap to any reception point. Since the device includes both ferrous and non.ferrous metals. the sale will be quite profitable, especially if it simply lies with a “dead load”.

The first thing to do is to find a buyer that has all the permits for the purchase and subsequent disposal of these devices. If you are and MO, contact the LOMService, here they will not only accept the product for secondary processing with the signing of the contract, but also offer the highest price for 1 kg/t of raw materials (details, how is the delivery of the electric motor for scrap, find out here-find out here-find out here-find out here https: // lomservice77.ru/demontazh-metallokstruktsiy/avtomobil/dvigatel/elektrodvigatel/).

In order to extract maximum benefits from the sale, it is better to take the device not in general (like a piece of scrap of Chermet), “by weight”, but in disassembled with the extraction of valuable copper. How to do it.

Instructions on how to remove copper from the electric motor and hand over

In order to qualitatively and quickly disassemble the electric motor to extract copper, a number of consistent actions should be performed:

Remove the lid, loosen and remove all fasteners.
Dismantle bearings.
Remove the rotor.
Remove the back cover and remove the shaft.

After that, all the connections are soldered, and then the winding is removed.

Further, all parts of the electric motor body are sorted. The case and the collector are crushed by means of a pneumatic hammer, and the nodes containing copper are cut into segments with a length of 15-20 cm.

Tip: To better and easier to extract aluminum rods, you can use the rotor heating to a temperature of 650-700 ° C for 1.5-2 hours.

Copper in an electric motor: how to determine the quantity

After the copper.containing elements of the device are extracted, it is important to clean them of lighter materials: insulation residues, plastic fragments, rubber, etc. You can do this using a pneumatic vacuum cleaner pistol. Further, pure copper is weighed and thus its mass is determined.

The number of copper elements depends on the power of the electric motor. Tentatively from the device can be removed and handed over with a crowbar at a price of color metroat such a volume of copper:

up to 50 kW-20-28 kg;
up to 30 kW-up to 14-20 kg;
up to 20 kW-10-13 kg;
up to 10 kW-5-8 kg;
up to 4 kW-3.5-4 kg;
up to 2.5 kW-2.5-3.5 kg;
up to 1 kW-1.5-2 kg.

By dismantling the device, you can 100% pass it at a higher price.

If it is difficult for you to dismantle the electric motor yourself, trust this work specialists of the scrap point, but keep in mind that the cost will be reduced by the cost.

Checking, rampage of an anchor of a corner grinder with your own hands

Rotor for Interskol Corner grinder-2300m, Hammer. Photo 220 volts

When the corner grinder fails, diagnostics are performed to identify the causes. One of them may be a breakdown of the anchor (rotor) of the electric drive. You can independently check the serviceability/malfunction of this rotating node yourself. It is necessary to have only simple devices in the arsenal to carry out the call of the electric circuit.

Device

For competent diagnosis of fault failure, it is important to know the device and the principle of its operation. The main elements of the anchor are a round core consisting of a set of plates of electrical steel and a winding hung in its grooves in a certain way. Two anchor windings are laid in each of the grooves according to a special scheme. The first and last round of one of the windings are in one groove and close to one lamel.

Rotor for makita angular grinding grinding 9069 max. Photo 220 volts

The core is attached to the rotor, which rotates under the influence of forces arising in an electromagnet field formed by the windings of the anchor and working with it in a pair of stator coils. In the grinder, an anchor is a assembly node, with a drive gear located at one end of the shaft, on the opposite. a collector knot.

Causes of malfunctions

The reasons for the rotor breakdown may be improper operation of the power tool, which is represented by the following factors:

The permissible time of continuous operation has been exceeded, which is one of the main reasons for the failure of household Bulgarians;
carrying out work in conditions of aggressive environments with the presence of sand, moisture, abrasive dust and other similar materials;
work in conditions exceeding the permissible load;
Some mechanical malfunctions affect the imbalance of a rotating rotor, which ultimately affects the normal functioning of the rotor electrical circuit;
Network voltage instability during operation by the electric tool.

Wonderful rotor for Bosch angular grinder GWS6-100/GWS 850 Max. Photo 220 volts

The operation of the power tool, associated with the action of these factors, leads to the occurrence of the following faults:

cliff of coil conductors;
short circuit between turns due to burnt insulation;
Isolation loses its properties, which can cause a break in the winding to the core body;
violation of collector contacts;
A particles of charred insulating varnish or melted solder that have fallen into the gaps that come into contact with a rotating rotor can cause mechanical damage to the elements of the corner grinder: cracks, cheapening, deep scratches.
the collector’s lamellas wear out unevenly, a short.circuit is formed on them.

This is mainly happening with prolonged operation of the collector engine of the corner grinder without a break for rest. The insulation of the winding from heating loses its characteristics, is melted, which leads to a short circuit of the turns. The contacts connecting the anchor winding with the collector lamps can be soldered, the electric current is interrupted and the electric drive stops.

How to check the serviceability, call the rotor corner grinding at home, video

In domestic conditions, the following methods for diagnosing the anchor exist:

visual inspection;
using a multimeter;
a light bulb and two wiring connected to it;
instruments specially created for checks of the integrity of the windings (an indicator of short circuit, an anchor check and others).

details about the types of diagnostics in the following information where there is a video.

Visual inspection

Even if there is a complete arsenal of devices to check the electric chain, never neglected visual inspection. the mandatory first step of the entire diagnostic process. A careful look will find signs by which the user who knows the design and principles of the rotor will determine the nature of the malfunctions.

Carled traces and the presence of a specific smell are the cause of burned isolation and ultimately damage to the wires of the winding. Attention should be paid to crumpled or swollen turns, which can authorize the presence of cliffs in this place. The windings may contain particles from solder, which are source of short circuit.

Violations of contacts of windings with the collector can be detected by burnt lamellas. Visually diagnosed damage to the collector itself. raised, worn or charred plates.

Tester, multimeter

Device multimeter or other name of its tester for measuring electrical parameters: current strength, voltage, resistance. can be used to search for breaks of wires of windings or breakdown on the core body.

In the next video, the author offers a diagnostic option from simple to complex. With the help of the multimeter, the stator is primarily nicknamed. It is much easier to perform a check than the rotor. If there are no cliffs and breaks on the body on the status, then we can conclude about the anchor malfunction. Further, its diagnosis should be carried out in more detail with the determination of the exact type of defect and determining the method of elimination. A multimeter is carried out in the “Resistance Verification” mode with the installed minimum measurement scale (up to 200 Ohms).

This video, as in the other, shows the process of determining cliffs of windings, which is really quite laborious, since measurements are carried out between each pair of lamellas along the entire contour of the collector. At the same time, on the anchor that does not have cliffs, all the multimeter readings should not differ from each other within 0.1 ohms. The breakdown of the windings on the case is much easier to check with one probe on the core body, and the other on the collector plates. The multimeter scale should not respond with any testimony.

How to disassemble the electric motor for copper: the fastest and most effective ways

Dewalt DCG405N Cordless Angle Grinder Review

An alternative to expensive disposal

What metals the electric motor consists of

Inside the electric engine are located:

Stator. motionless elements that perform the function of the magnetic circuit;
rotor. chassis consisting of turns of wires conducting electricity.

Which engines can be handed over

The points of receiving metal scrap and secondary raw materials take such types of electric engines:

walking brownient, installed on milling machines and industrial equipment;
DC serpavigors suitable for robotic machines;
DC electric motors (DPT) used in drive tools, toys and equipment;
linear, used in electric transport, freight, pile and cutting special equipment;
compressors combining the functions of an electric drive and compressor, therefore used in household appliances and on electric vehicles.

Features of passing engines for scrap

Repair Bosch Angle Grinder at Home. How to, |DIY|

Features of disassembling the electric motor

After cutting the case, the copper is relatively simple to extract, and before firing it should be thoroughly compressed (otherwise small elements will be scattered). A lump of copper wires must be formed so that the small and thin parts are inside, and the thicker and more thick parts are on the outside. After firing, do not cool copper with water: the risk of the metal will crumble.

After firing, a lump of wires should be tied and compressed in briquette using a sledgehammer.

Stages of disassembling the electric motor

If you want to know how to quickly disassemble the electric motor for copper at home, follow our recommendations:

First remove the lid and spin the fasteners located on the case;
Remove bearings (they can also be handed over to scrap metal);
Open the body and remove the rotor;
Remove the back cover and dismantle the shaft;
Up the joints, then remove the copper winding.

How to check the anchor on a corner grinder?

Visual inspection rules

Standard diagnosis involves a visual analysis of the device. It is necessary to analyze the integrity of the wire and the supply of current to the motor collector. With normal feeding, the angular grinder should be examined from the inside. To disassemble the device will not be difficult. It is best to photograph the location of the main modules of the device when analyzing. After disassembling, conduct a visual test of the anchor on the following properties:

The stroke of the anchor must be free;
the absence of black spots and smells that may talk about melting the winding, the insulating varnish of which leaves traces;
the absence of crumpled turns and soldiers of solder, which leads to a short circuit;
There should not be burnout on the lamella contacts, otherwise the binding of the Lameli Petushka and the shirt of the winding should be checked;
lack of worn out or burnt records;
The space between the lamellas should not contain graphite residues from the brushes.

If there are no deficiencies during visual inspection, then it is necessary to check with devices. The anchor on the corner grinder can be checked both using a tester and using a regular light bulb.

Tester inspection

The multimeter is set to the Ommeter position. The resistance of 200 Ohms is set. The probes are connected to the lamellas located next to each other. If the value on the device is less than 1 ohm, then there is a short circuit. With a value of more than average, the presence of a break in the turns is possible. With a high resistance or absence of any value (in the case of the use of a digital device), one can also judge the break. There are situations when the cliff is not detected. Then a breakdown is done. With maximum resistance, one of the probes is placed on the shaft, and the other moves along the plates. If the value is zero, then there is no damage. Then the rotor is checked in the same way by the multimeter. The probe in this case moves through the lamella. If it is impossible to check the test, the light is used.

Block control

In the absence of a device at hand, many are interested in the question of how to check the corner grinder for possible anchor breakdown. The supply supplier wire is torn, and a light bulb is placed at the gap of one wire. Then the shaft rotates. By changing the brightness of the light bulb, you can judge the closure between the turns. In the absence of combustion, the following conclusions are possible:

The location of the brushes does not correspond to the working position due to the operation of the retaining spring;
rupture of the supply contour;
Closing or rupture in the stator winding.

You can call the indicator of short.closed turns and an anchors checking device. An experienced person can do this.

Комментарии и мнения владельцев and opinions of owners 218

Today did the same, but more clumsy, t.to. I have hands-tricks)

I drove for almost a year, then I sold the car, we still communicate with the buyer, and still everything works

Such trouble with the generator was on the former ten. Collective farm collective farm with 3 voltage regulators, but he didn’t really make anything. And all the trouble was in the contact rings. There was wear on their native rings and it was decided to change them. I bought rings, put, soldered, at the same time changed the bearings, but the trick is that these rings are on sale.quality, rough with elix. I removed the roughness with a skin, but there is no elips. As a result, there were any problems with the voltage regulator, then the brush from constant vibration broke off, the generator worked, but the voltage was sagging. There was a collective farm with regulators again. And again not for long. As a result, I spat I bought a new voltage regulator, put it but the problems have not disappeared for a long time. Contact rings as in your photo, really shit on plastic. As a result, the rings began to hang out, I had to buy a new contact grill. When replacing the rings once again broke off the leash of the anchor winding. The fact is that at the factory the winding of the anchor to the contact rings is welded by contact welding, and when you remove the factory rings, the wire must be torn off from welding. In general, there everything is a Tutelka in a tutel, a shock in a priest. After the wire broke off, I decided to grow it, the only possible option to crawl to break off the impeller. I tore off the impeller, put the rings, the wire attacked, but the impeller is posed back. At first I thought to give the welder to grab with spot welding, but thinking that the replacement of the rings could still be refused welding. I decided to spill the impeller and anchor and in anchor cut the thread M4. But the yakr must be drilled carefully and not deep, so as not to drill iron through and not damage the winding. I sparkled, cut, screwed it, collected and Gene earned again, and again not for a long time. The collective farm with the impeller violated the balancing, the rings on the contact group began to hang out again. Again replacing the cont. rings, removed the impeller, gathered like this. He put it, he earned, but after a week or two again died.

I spat on everything, I went to the store and for 3200 I bought a new generator for 140 and with some kind of microprocessor voltage regulator. I put it and forgot all the problems. In BC voltage was stable 14.2-14.6 V. Included distant stove Mafon heating glass = 14.1-14.2 V.

The old generator is lying around. On its recovery, I lowered about 200 r. to the bearings, changed the puller himself. 7090100 = 260 r. three times purchased contact rings. 270 p. voltage regulator. Drill 3.7 mm. 2 pcs 40 p. Tapor M4. 30 r. screw the impeller = 70 r. As a result, 800 cats under the tail.

You can also do it in different ways.I think my kitchen will last a long time)) the question is only on a graphite brush. She will be erased quickly

Believe me, in the Bryansk region there are such settlements where this is definitely not found. In any case, when the sellers explain what I need, in 4 stores I looked in round eyes)))

If in the Bryansk region. no. then drop in Belarus, you will find in any car shop

400 kilometers go to Belarus. Whether the collector will cost a little expensive?

The main problem is that about 90% of the generators (and 100% of the generators over the past 7 years) go with medicalography, they kill the generator if you use the brushes of pure graphite, then the generator resource increases three times, with a decrease in the resource of the brushes themselves, all the time and all the ways Consider never use copperographic brushes

This is fundamentally incorrect and incompetent judgment. Graphite brushes. are used in power tools (220V change), they have high internal resistance in generators, while only! Majorographic brushes with low resistance. Current rings (like brushes). in the design of the generator are replaced elements.

Stages of disassembling the electric motor

If you want to know how to quickly disassemble the electric motor for copper at home, follow our recommendations:

First remove the lid and spin the fasteners located on the case;
Remove bearings (they can also be handed over to scrap metal);
Open the body and remove the rotor;
Remove the back cover and dismantle the shaft;
Up the joints, then remove the copper winding.

Analysis of the asynchronous engine

The asynchronous electric motor consists of a fixed stator and a rotating rotor. Inside the rotor is a shaft and a core of a shihno design with a short.closed winding. Due to the features of the design, the stages of analysis are slightly different:

unscrewing the screws on the back cover and dismantling the protective casing of the fan;
Removing the fan;
unscrewing the bolts fixing the case;
dismantling the front and rear covers;
extracting the cover inside which the rotor is located;
Dismantling the rotary shaft from the bearing in the lid.

You can extract the winding in the way described earlier: by dismantling the case by cutting off part of the copper wire and taking out the rest of the passathesi or pliers in parts.

Differences of electric motors in industrial production

Large enterprises with large production areas requires equipment operating at high capacities. Technical characteristics of electric motors allow such machines to function on capacities in the range from 1 to 2.5 kW.

The woodworking production uses three.phase type machines and the asynchronous principle of action. At the same time, they work without problems with a domestic voltage of 220 volts.

Distinctive features of such engines are:

high power indicators with small dimensions;
increased speed;
moisture protection;
Durability and performance.

Dismantling of electric motors from the car

There are many different collector electric motors in the car. They understand differently. In the simplest instead of the stator winding, ordinary magnets are used. Therefore, the voltage is supplied only to the collector. For disassembly, it will be necessary to disassemble simply the case, which can be glued from 2 halves, riveted or connected using bolts or screws.

Dismantling of more powerful car electric motors, such as a starter, is always described in detail in the operating manual to your car model.

Circuit of rewinding electric motors

There are a huge number of electric motors and almost everyone has their own rewinding scheme. Unfortunately, it is impossible to describe and imagine even one percent of those schemes that exist thousands. Each company that is engaged in the repair of electric motors has its own base of the electric motors diveting schemes accumulated for years and it is unlikely that who wants to share it.

From each engine, without exception, a scheme is removed before rewinding, on which a sufficient amount of time is spent and stored in the database. If it is impossible to remove the scheme, the specialist addresses the knowledge base and finds the right. If the service center does not have such a database, contact another, with rich work experience.

Two main circuits for connecting the windings of the electric motor star and triangle.

Scheme for connecting the windings of the electric motor “Star”

Scheme for connecting the windings of the electric motor “Triangle”

How to disassemble an electric motor

Electric motors are used in almost all elements of the working nodes of our household appliances and provide it with proper operation. At home, most often we meet with the following types of engines:. The procedure for disassembling any of these types of electric motor is determined by its design and the completeness of the upcoming repair. Dirgining the electric machine first of all, do not forget about observing safety and caution in order to prevent damage or loss of its individual parts.

In the household, engines in power tools most often break. In order to make it yourself, you will most likely replace the graphite brushes or clean the motor collector. In order to carry out the elimination of this or other malfunction, it is necessary to disassemble the non.working or poorly working angular grinder, the peorator, etc. P.

Sources:

https://stroy-yug93.ru/kak-razobrat/kak-razobrat-yakor-elektrodvigatelya-na-med.html
https://msmetall.ru/opyt/kak-snyat-med-s-yakorya.html
https://eldomocom.ru/stroitelstvo/kak-bystro-vytashhit-med-iz-elektrodvigatelya
https://ollimpia.ru/kak-dostavat-med-iz-yakorey/
https://moneyinvestnews.ru/kak-izvlech-med-iz-yakorya-elektrodvigatelya/
https://xnh1aaasb2a.xnp1ai/elektroinstrumenty/remont-yakorya.html
https://moneyinvestnews.ru/kak-razobrat-yakor-generatora-na-med/
https://strop-snab.ru/novosti/kak-razobrat-yakor-elektrodvigatelya.html
https://energetika-64.ru/shkola-elektrika/kak-razobrat-rotor-elektrodvigatelya.html

Articles anchor, angular, disassemble, grinder