Dismantling of the engine of household vacuum cleaner
The vacuum cleaner is one of the most necessary and useful types of electrical engineering in the house. His work is heavy and dusty, so the device often fails, and the repair is expensive. Having even minimal skills in working with electrical appliances, the vacuum cleaner can be repaired with your own hands, if the breakdown is not very serious. Most often problems arise in the motor. To solve the problem, it is necessary to disassemble the engine of the vacuum cleaner, for which you need to know its filling and algorithm of action. About all this. In the material further.
Most of the most active vacuum cleaners are not much different. They are all mostly collector type. Such an engine consists of the following parts:
- Engine housing;
- Stator winding;
- Rotor on the shaft axis;
- Two bearings;
- Brushes and brush holders;
- The impeller with the casing.
Important! The motor is the driving force of the vacuum cleaner. Therefore, the breakdown of this type of household appliances is largely related to the operation of this assembly and caused either by the physical wear of parts or incorrect operation.
The main signs of the failure of the engine include:
- Vibration and loud noise;
- Weak speeds;
- Heterogeneous hum;
- Washing the brushes;
- Overheating of the unit;
- Continuation of the engine.
Features of disassembly on the example of popular models
The design of the electric motors of most modern vacuum cleaners, despite the variety of brands, shapes and manufacturers, is very similar. Further, the options for disassembling the engine will be considered using several popular brands.
As in other models, first of all, it is necessary to remove the brushes and the knot of their fasteners. They are fixed with screws or springing latches, which are squeezed into a thin flat screwdriver. Next, the impeller cover is dismantled. If it is raged, the sides must be carefully bend with a thin screwdriver or a narrow metal plate. If you hold on friction. It is removed with careful tapping with wooden or rubber kiyanka.
Next is the turn of the nut. Experienced masters offer several ways to unscrew it:
- Glining. A flat screwdriver is inserted into the end opening until it grins the stator and rotor. In this case, a very high risk of damage to the winding.
- Broaches. The method is described above. Pinch the bar in a vise should be very careful so as not to damage the rotor contacts.
- Wire. 30 cm of soft wire in isolation will be required (up to 2 diameter.5 mm). The wire should be introduced through one window for brushes, covered with a loop of the rotor contacts and remove the end of the wire to another window. Rotating the rotor, you should wrap the wire on it so that the turns are laid close to each other, and the entire width of the clearance between the rotor and the stator was filled. Thus, the shaft will be jammed, but due to the softness of the insulation damage, the damage will not be caused. Instead of wire, you can use a long fabric strip. After unscrewing the nut, the wire or fabric is carefully removed, gradually turning the shaft in the opposite direction.
- Drank the shaft on the end. This method requires great accuracy in execution. It should be tried if your locksmith skills are at a sufficient level. The end of the shaft, along with the upper part of the nut, is drank to a depth of one and a half to two millimeters so that the slot forms. Sufficient to keep the shaft with a flat screwdriver. It was convenient to drink it with a manual engraver, a dremel or just a drill in which a disk with diamond spraying is clamped. You should also carefully warm the nut with a portable burner to soften the sealant or paint fixing it. Holding the shaft with a flat screwdriver, you can easily unscrew the nut.
Important! After sprinkling, it is necessary to remove metal sawdust from the porch from the porch surface so that they do not get into the engine.
Further disassembly, as on vacuum cleaners of other brands, is not difficult. After removing the impeller, the remaining parts of the engine are dismantled, fixed with screws.
Bearings are removed by universal or specialized pullers. If the bearing is damaged so much that the balls fell out of it, the inner clip is grinding with an abrasive circle so that the rotor shaft is minimized. After that, the covers of the clips weakens, and it is removed, tapping with a small hammer.
The design of the electric motor used in Samsung vacuum cleaners is very similar to the LG engine
You should always start disassembly with the dismantling of the brushes and the knot of their fastening. Samsung attaches the brush holders on screws.
Next, you can start further disassembly of the engine. The most difficult and in this case is to unscrew the nut. Homemade masters recommend using similar methods for Samsung vacuum cleaners:
These methods were described in detail above. The choice of a specific method depends on the existing equipment and skills of the home master of the home master.
At the time before perestroika, all Soviet electric motors were produced with a slot at the end of the shaft. This was due to their more than average quality of manufacture and guaranteed by the need for repeated disassembly for repair during operation. Modern engines of leading manufacturers are designed and manufactured so that its resource is enough for the passport life. Dismantling and repair is not constructively provided, the service policy is focused on replacing the entire unit.
This challenge is accepted by domestic home masters who love to get to the bottom and repair everything, despite the cost of time and means.
The upper engine cover on Samsung is not closed along the entire perimeter, but in four places. It is enough to find the first. The rest will follow after 90 about the place of compression should be leveled with pliers, after which the lid is removed with their hands.
The impeller is attached through the gasket with two well.Visible screws.
- To unscrew four screws holding the fastener, holding the clutch clip;
- Extract ledges from grooves in the engine lid;
- Grow a rotor with a lower bearing through a wooden spacer.
Most home masters converge in the fact that it is better not to disassemble products in the production of a German concern. Cases of successful repair at home are almost unknown.
The same can be said about other brands-Philips, Beko, Miele, AEG and others.
How to open
The Samsung vacuum vacuum cleaner case consists of 2 halves connected by screws and latches. Before starting work, it is necessary to dismantle the dust collection tank or remove the bag. The remnants of the pollution from the vacuumber niche are removed with a damp cloth. The screws are located in the inside of the niche, the additional element of the mount is carried out on the back wall.
After unscrewing the screws, you can open the case. It is recommended to use a special plastic blade, which is inserted into the fishing line for the trimmer of the connector and takes the clamping elements. After separation of halves, it is required to turn off the buns of cables going to additional controls (used to parts of the models).
Way how to unscrew the rotor mounting nut
Let’s call them conditionally according to the technology of work:
Each of these methods has its advantages and disadvantages, can be used depending on the presence of equipment and tool base.
A little story
This rotor attachment technology was used on the collector engine of any vacuum cleaner produced during the USSR. For the convenience of manual assembly and subsequent repair at the end of the shaft, a groove for the blade of the screwdriver was always created in the factory.
Its effort recorded the position of the rotor shaft, and the torque from the wrench was clamped or reinforced the nut. I have a similar engine that was used in the design of a homemade trimmer for grass. This slot is clearly visible in the photo below.
Now production is widely used by industrial robots and automation of all processes. In addition, the marketing policy of famous manufacturers is designed for:
- A long service life of the manufactured equipment within the declared resource;
- Performance of repairs by the pounds of refusing devices without disassembling them.
For these reasons, the defective collector engine simply changes the manufacturer for a new one without disassembly: so faster, easier and profitable. Well, our home master loves to fix everything with your own hands in the old fashioned way.
How to make a slot
The nut of the vacuum cleaner engine and the rotor shaft are made of ordinary steel. They can be made in them. However, in our case, it does not allow us to fulfill the deepening of the fan housing in which they are hidden. Therefore, you will have to use the ordinary electric drill of the home master and the circular saw of the corresponding diameter at its end.
Disassembling, cleaning, reassembling and testing of vacuum cleaner motor
Then we put the key on the nut, and on the engine drank in the engine. Screwdriver. Screwdriver. It remains to attach force to create the opposite torque and with its help to disassemble the mount.
I did not use this technology: there was no small circular saw for cutting metal at hand. I tried two other methods in the work.
And you can watch its implementation in the video of Alexander M “How to unscrew the nut”.
The method is based on holding the anchor for collector plates using a stray unit. I had to check two options for unscrewing the nut with:
Fastening with wire
In principle, polyhlorvinyl isolation of the mounting wire squeezes the rotor shaft on collector plates, maintaining the integrity of their surface, and allows you to keep it to turn the nut.
Used a wire made of copper with a diameter of 2.5 mm kV. However, the design of the loop was weakly protected and did not fully provide a stray. When working with the key, I felt that the shaft is scrolling and did not use great power.
When he pulled his wire from the engine, I saw a wiped insulation on it. With this method no longer began to experiment. However, I propose to watch such a technology in Hamradio’s video “How to unscrew the nut on the engine”.
Снять крыльчатку, открутить гайку с двигателя пылесоса / unscrew the nut from engine, vacuum cleaner
Took a piece of thin rope and folded it in half in length. In the middle he made a soft wire playing the role of the needle.
With its help, it turned out to be convenient to put a soft cord in a loop on a noose and skip it around the collector plates.
Tied the fastener around the case window.
I did not succeed in an attempt to unscrew the nut in this way: the structure of the cord turned out to be weak. It just broke from the attached tension forces.
If you repeat this method, then choose a more durable rope, cord or belt.
Clime in a vice
To fix the anchor in this way, it was necessary to make two adapters in the form of rectangular pads from a tree.
Their cross section should be included in the opening of the case for attaching the brush, and the length is removed to the collector plates and protrude a little out. These distances are best measured using a caliper or ruler.
Over, the side adjacent to the rotor must be trotted with a round file in the form of a segment for a tight fit to the engine shaft.
How to remove the impeller of a vacuum cleaner
A vacuum cleaner is an indispensable assistant who provides high.Quality cleaning of a house or apartment. Like all other household appliances, the vacuum cleaner eventually begins to cope with its task poorly or completely breaks. Most often this is due to the failure of its engine, for the repair and replacement of which it is necessary to carefully remove the impeller without damaging it at the same time.
To get started, remove the vacuum cleaner case by unscrewing the two screws located under the compartment cover, where a bag of a vacuum cleaner is installed. Now you can remove the plastic lattice and unscrew two screws. They are right under it. After that, the vacuum cleaner cover easily removes with the lid, on which the unit control buttons are placed and the handle designed to regulate power.
Next, unscrew the bolts in the vacuum cleaner itself and two bolts under the lid removed, after which the housing of the vacuum cleaner is divided into two parts, providing yourself with free access to its engine, and, consequently, to the impeller.
Remove the material from the engine that protects it from dust penetration and fixing its plastic gasket. After that, remove the engine from the body, disconnecting the two wiring before that, which are responsible for supplying power supply in the power unit.
Now you need to remove the impeller itself from the engine. It is planted tight enough. For this purpose, it is best to use a hammer and a metal bar, which can be a key for clamping stone in a corner grinder.
The difficulty of removing the impeller lies in the fact that the nut that is closing it is additionally coated with glue. Therefore, before unscrewing, you need to clean the anchor shaft above the nut. After that, click it in a vice and start unscrewing the nut. If the nut begins to scroll along with an anchor located on the impeller, remove the brush holder with brushes.
Through the resulting window, by means of a platypus, fix the anchor for the collector. By unscrewing the nut, control your strength, which will allow you to avoid scrolling the anchor collector located in the sponge of the platypus, under which, by the way, you must definitely put a small rag. At the end of the repair of the vacuum cleaner engine, the impeller will need to be put on it in the reverse order.
Dismantling the electric motor of the vacuum cleaner
To disassemble the engine and remove the fan impeller, first of all, we will remove the front of the casing (above the impeller). We take a thin metal object, you can a screwdriver and carefully bend from the side of the casing so that the screwdriver passes a little in the middle, then the upper part of the casing, as a result of which the entire impeller is available with a neat motion with a neat motion.
The nut on the impeller usually has the left thread (but there are exceptions), we try to unscrew it with holding the impeller with your hand, if it scrolls and in this way it is not possible to unscrew the nut, there is one excellent way. We take a good multi.Lifetime with a cross.Section of more than 1.5mm in dense rubber insulation (to prevent sliding). We put such wiring and wrap the collector shaft 2-3 times, a turn to the turns and stretch in different directions thereby fixing the shaft motionless.
It is most convenient to do this together, one person fixes the collector using the ends of the wire stretched to the sides, and the second unscrews the nut on the fan disk. The method is very convenient and safe for fixing the anchor. In the same way during reverse assembly and tighten the nut.
After removing the impeller, we unscrew the housing screws, by this moment the brush should already be removed.
Then we carefully stretch the anchor, if necessary, a little frightening the upbringing of the upper part.
If necessary, bearings are removed using an affordable tool or special threaded pullers. In particularly severe cases, sometimes the bearing “captures” tightly with the sleeve, a special hydraulic press is used to remove bearings.
Features of the engine of the vacuum cleaner Samsung
Samsung vacuum cleaners, like any other, consists of a static starter and blades rotating around it. Visually, you can consider the asynchronous collector installation of direct current used as a drive, and a fan mounted on the rotor shaft, which helps to pump out air from the housing and create a vacuum that creates the same “suction” effect.
The system is closed by several layers of soundproofing materials, as well as a lid that prevents the penetration of air and dust particles from the outside.
Repair of the Bosch BGL452125 vacuum cleaner. No traction (pitch clogged)
Today I got a wonderful example of German engineers. Bosch vacuum cleaner. This mechanism did not last long. But he got to my table, which means that there are chances for a second life.On the example of this vacuum cleaner, I will tell you how to cure its “sore” (thank God is not deadly), which is often suffered by vacuum cleaners of the company Boschpri with a closed lid with a hand, is there a thrust. There is no traction, which means that we move on to extracting extra filters that may affect the traction. Having removed the internal filter in the garbage compartment, we look into the hole where the engine is located. And here it is, our problem: the engine impeller is clogged with garbage. Most likely, this is happening from the hosts oversight. The bag was inserted loosely, the filter was not cleaned or changed, etc.P.So, sick, let’s proceed immediately to the autopsy.First we remove the top cover. If this is not done, it will bother us. Close fastenes carefully squeeze with a flat screwdriver.Now we are looking for self.Tapping screws for opening the case. Two of them are hidden under the sealing elastic band of the lid we removed. One. Under the key of inclusion (it also needs to be removed, with the same flat screwdriver, squeezing the mount on the side). Now the Torx15 nozzle we unscrew the screws we found.Armed with something flat, open the upper and lower half of the body. Multi.Colored wires and a new cover are greeted inside us, under which the patient’s heart is already waiting for us. The engine.But first we need to pull out a speed control (small scarf on colored wires). To extract it, we put out the shaft of the revolutions of the revolutions up and to the left. Now it will not be difficult to get the regulator itself from the grooves.We unscrew the only self.Tapping screw separating us from the target and easily separate the motor boxing lid up, not forgetting to push it in front with a screwdriver.Our nesting dolls opened! Inside, our motor is hidden on the “cabbage leaves” of noise insulation. And to the right of him, the control unit. This is on it through the network cable, and then electrons run through the cable layer in order to rotate the ill.Fated impeller.Something I was distracted from the motor. Remove the power terminal and extract the motor. A bunch of hair and dust. This is what appears before our clear eyes. All this “wealth” stuck in the holes of the impeller, the task of which is to draw in the air during rotation.The second vacuum cleaner lended to good neighbors will help us to deal with this problem. “Clean, clean the chimney sweep”, well, you understand. Chimney sweep, t.E. The engine is clean. Now you need to clean other secluded corners. I’m talking about the case itself and sound insulation, which not only makes our vacuum cleaner quieter and more expensive, but also collects dirt no worse than a real janitor. Everything is clean, it means the patient’s time to “sew”, t.E. Collect. Do not forget the tools inside.The process of assembly of the vacuum cleaner is carried out in the reverse order of the disassembly process.And so he sang and hummed, drawing in the air, speaking in his own language “thank you, friend!””
A little about electronics
Thermal guide is installed on branded, expensive electric motors so that the vacuum cleaner does not arrange a fire. With strong load, for example, when jaming the bearing, strong heating of the motor begins. This can lead to a fire, but the thermal object opens the network, stopping rotation and overheating.
Finally, we will tell you what exactly you should not climb. The electronics in the vacuum cleaner are mainly reduced to power supply, which can be connected to the network with ordinary terminals through the power button. Some models have power control (switch or dimmer on the housing), including an additional adjusting resistance resistance. It limits the current consumed by the engine. The presence of an electronic filling sensor is also possible, rotation control sensors (encoders), the backlight of the power button and other options.