How to disassemble a screwdriver screwdriver. What can break in a charger from a screwdriver

The purpose of all parts and assemblies of the tool. As they are called

If a screwdriver breaks, then before repairing it, you need to figure out what specific detail was out of order. To find out the malfunction on your own, you need to understand the purpose of each node and its constructive parameters.

• Start button. It is with it that the tool begins with it. This mechanism performs two options. Includes a power circuit, that is, it supplies voltage to an electric motor, and also regulates the number of rotation revolutions. The stronger the press press, the greater the speed the cartridge will rotate. As a revolution regulator, an electronic PWM generator is used, which is installed on the board. When you press the button, the contact of the board is moving. A field transistor is used as a contact, which plays the role of a rotation speed regulator
• Electric motor. In portable instruments, single.Phase electric motors of direct current of the collector type are used. The advantages of these units include high reliability and ease of maintenance. The electric motor consists of magnets (play the role of a stator), anchor and brushes. The use of magnets significantly reduces the cost of the cost of the unit
• Reverse. This option is implemented by changing polarity on terminals. In order for the user to do not perform a change in polarity manually, crack contacts are used in the tool design in the form of a switch. This switch is located near the Start button
• A gearbox is a set of gears, due to which an increase in the moment of rotation of the cartridge or a decrease in speed occurs. Shuriks use two types of gearboxes. Planetary and classic. Classical are similar to those that are installed on drifts, only in screwdrivers are very rare. Planetary gearboxes consisting of ring (intermediate) and solar gears are more popular, as well as satellites. The solar gear is driven into effect from the engine shaft. Satellites are given from its rotation in motion, conveying the torque to the ring gear. Depending on the number of speeds, planetary gearboxes can be two.Stage or three.Stage. The more speeds, the more expensive the tool will cost
• Effort regulator. Usually 16 positions of effort are used, but there are also such models that have more. The possibility of screwing screws into a tree depends on the size of the effort. If you need to screw the screwdriver into drywall or other soft materials, then a big effort is not required for this, so the regulator can be installed in position from 1 to 7
• Cartridge. The mechanism has a simple principle of operation. Consists of three fists that reliably fix the installed nozzles. The advantage of fast.Sounding devices is a high speed change
• Case. Plastic shock.Resistant structure, inside which all components are located. To repair the device, you need to disassemble the case. For this, manufacturers produce houses from two parts connected using screws
• Battery-manufacturers produce two types of portable batteries with filling from nickel-cadmium and lithium-ion (as on mobile phones). The lithium-ionic ones are durable and more reliable, but they cost 3-4 times more than tools with nickel-cadmium batteries. Typically, two nickel-cadmium batteries are equipped with a screwdriver, which is associated with a short service life

It is interesting! If there are batteries that have a solid structure of the case, then this means that they are not intended for independent repair.

If a screwdriver broke, then it is not difficult to repair it at home, if you only find a breakdown. Frequent problems of malfunctions of screwdrivers include failure of batteries, the replacement of which can cause some difficulties. Consider the mechanical and electrical malfunctions, as well as the features of their elimination on their own.

How to make a screwdriver correctly. Instructions for beginners

Before repairing the screwdriver intercol, as well as devices of other models, it must be correctly disassembled. Those who have never encountered this task should be adhere to the instructions. In order not to lose details, disassembly is performed on the table. First unscrew the fasteners. The case for 2 halves is opened carefully so as not to break it. Experts advise the plastic halves of the corps with the help plastic blades. If, after the screws are twisted for fastening, the case still does not understand, most likely brackets are installed in it. They must be pulled out.

Dismantling the button. This is the most difficult process, since it is fixed to the main motor system with wires that cannot be broken and tear. It is neatly disconnected from the body, the speed switch is removed. Then disconnect the engine, gearbox, coupling and cartridge. To unscrew the cartridge, twist the screw located inside the mechanism with flesh.Fist. Removing the screw is carried out clockwise, because on it Left thread. Then the cartridge is unscrewed from the gear shaft, turning it to the left due to the presence of the right thread.

During disassembly, all parts should be decomposed in the order as they were removed, otherwise you can confuse everything and after repairing the tool will not be able to collect correctly correctly. The presence of signs of oxidation inside, speaks of Water. The tool stops working due to high humidity, which leads to failure of parts. After disassembling the device, they begin to repair it.

How to repair a screwdriver charger

Когда разобран блок питания и найдены вышедшие из строя элементы, то провести ремонт зарядки электрического шуруповерта, не составит большого труда. To do this, you will need to arm yourself with a soldering iron, as well as a flux and solder, and then get down to business.

It is interesting! It is strongly recommended to use rosin as a flux, but orthophosphoric acid, as it copes with its task much more efficiently, and is very cheap.

In order to repair the charger for a screwdriver with your own hands, you will need new elements that need to be installed instead of failed are a fuse, resistors, diodes and capacitor. These elements of a penny are worth, and if you have at your disposal old charging blocks or microcircuits, then you can fall out of there. When all the tools and elements are ready, you can start repairing.

• First you need to fall out or remove the fuse. Depending on the model of the power supply, the fuses in it can be inserted or soldered. Even if it is an insertion of a fuse, and you managed to find only the one that is with the legs, then the inserts need to fall out of the board and instead of them to the contacts, solder the safety element
• If the capacitor is swollen and does not work, then it also needs to be dropped out, and replace it. When falling out, do not forget to see which legs are located. This is very important, otherwise the element will work incorrectly, which will lead to a second failure. Positive contact of the plus capacitor must be connected in a chain with diodes cathodes. In order to understand what it is about, below is a scheme on which the site of interest is highlighted. When installing a new capacitor, you need to choose it according to the parameters that the element has failed
• If a diode bridge has come out of the system, then you need to fall out diodes and solder them. It should also be borne in mind that the diodes should be soldered in the correct position. The anode on the input of the high.Voltage part, and the cathode for the low.Voltage part. If you FOCUS on the scheme that is presented above, then the difficulties with soldering the elements will not arise

If the resistor, transistor or other elements is faulty, then they are also replaced. The biggest difficulty that you can meet when repairing a charger is a failure of a microcontroller. The termistor, which is located in the design of the primary winding of the transformer, may also get out of order. Its purpose is a restriction and reduction in starting current. Thermistor contributes to the charge of the capacitors that stand at the input of the scheme. How to repair the charger block of the screwdriver, if the termistor came out of the system, is described in detail in the video.

If this element has failed, it is easier to buy a new block, since it is very difficult to find a similar element, and even if it succeeds, then for soldering you will need to use a special hairdryer.

Upgrading dead Black and Decker Screwdriver to Li-ion. 282

After a simple repair of the charger of the screwdriver, you need to initially check its performance, and only after that you can connect the battery. How to check the operability of the renovated charger. Include it in the outlet (only first install the lid in place), and connect the cartridge probes to the conclusions. The corresponding values ​​mean that the device works, and can be applied. Now your Shurik is saved, and can last you for a very long time.

It is interesting! You know why often chargers break. Because unscrupulous manufacturers exclude many elements from the scheme, due to which the load on others increases, so the capacitor does not withstand, and swollen. Another reason is also the wrong choice of elements, therefore, as a result, after buying a new screwdriver, you need a repair of a charger.

Summing up, it should be noted that it is impossible to store the battery of discharged for a long time, and if your charging unit has broken from the screwdriver, then you need to start repairing it immediately, otherwise putting this process into a long box will not lead to anything good, but will only contribute to the need to purchase a new one battery, in addition to the charger. By the way, if it is not possible to repair the charger from the screwdriver or the device was lost, and it is impossible to find this on sale, then making the issue of charger with your own hands will help to solve the issue. However, this will need some knowledge in electrical engineering.

The principle of operation and the main nodes

Before starting the repair of a screwdriver with your own hands, it is necessary to understand the principle of its work and what parts it consists of. The main difference between a screwdriver and another power tool is the use of a mechanism that stops the rotation of the working part of the device. This happens when the resistance is as configured for the tool. This value is unstable and can adapt. There are two varieties of the device:

Regardless of the variety of the device, the principle of action is the same for them and is built on the transfer of the rotational moment. He determines which fixed tool will be able to tighten the screwdriver. To increase the rotating moment in the devices, gearboxes with a large gear ratio are used, but the speed of rotation is reduced. In screwdriver operating from the network of alternating current, the value of the rotational moment correlates with the power consumption of the tool. The main parts underlying the screwdriver device, whether it be Makita, Hitachi or Bison, is the following:

• Electric motor;
• Push button;
• Revolution control regulator;
• Chuck;
• The electronic unit;
• Gearbox.

The electric motor rotates with the set speed of the spindle, using a planetary gearbox for this. The torque is regulated by the coupling, and a clamping cartridge or a hexagonal holder is put on the spindle. This cartridge is installed in a shift device called “Bit”. Screwed by a screwdriver by an electronic circuit and switching a reverse.

Reverse occurs due to a change in the polarity of power. A single.Phase collector electric motor of continuous current is used as an engine. Such an engine is designed to connect to the AC network. The winding of the excitement is connected sequentially to the anchor winding and is divided into two parts. One turns on to the anchor, and the other after it.

The tool uses a planetary type gearbox. The reducer includes sunny and ring gears, satellites, drive. The shaft of the electric motor rotates the solar gear, which transfers the torque to the torch, and they already directly affect the drive.

The gearbox is produced by a single and two-stage. In the second case, a double drive associated with the shaft is used. The design of two drove and satellites is located in the middle of the ring gear. It is fixed through special grooves on the case. Along the entire perimeter, the ledges of the ring gear rest against the spring.Loaded balls through the ring. The load regulation mechanism acts on the ring through the controlled spring, the effort of which changes by rearranging the regulator.

The revolutions are controlled using a pulsed circuit collected on a microcircuit with a wide-mulse modulation (PWM). The controller controls the field transistor operating in the key mode. The frequency of pulses changes using a variable resistor. The resistance of the resistor depends on the effort that is applied to the button.

Screwdriver clutch is a rattle. If the load on the cartridge exceeds the permissible value, then the load regulator is triggered. The force of the spring becomes insufficient to hold the ring gear, and it leaves the balls. The electric motor begins to rotate the gear of the idle. When switching to the electric drill mode, this gear is turned off and does not participate in the work.

The battery consists of several elements installed in one case and connected in series. The case has a special latch that allows you to quickly extract the battery.

The cheapest screwdriver screwdriver. Take or not?

This video shows an overview of the cheapest screw.Up Vinzor, sold in the Svetofor stores. Despite the extremely low price for this tool, he definitely deserves attention. All details in the video!

ZJ35UND-D1O T = 5M04S 5:04 Where did this platter have a small plate? Who will tell? I can’t find a place for her) which is under the assembly under the shurik

Why is such a shit to buy? I do not understand. No one will ever make a normal screwdriver for such a price. They are disposable, so that two/three self.Tapping screws are twisted and throw out. But they sell them because they can make a big margin on them. Shops make a lot on such a chehm’s tool.

Such a shurik for 750r has been serving for the 3rd year and everything works!

The difference between expensive and cheap shuriks in the batteries that the same inside

At the end, comparison with “normal” shuriks looks inappropriate, t.To. They are from different price categories. And so thank you very much for the review.

I would like to know the full brand of the battery?

Pulled the rattle tightly and do not touch. WEAKNESS. The rest is great.

Hey! Where to stick charging. I can’t find tin

I took a couple of screws to twist at home, but in the end I use it on objects. Roofing and other drilling stretches! Pulls well screws up to 60 mm, and more than 65mm is difficult. But remembering how much I bought it, I wagged it almost no Shurik for that kind of money as much as he can

On Alik for 963 Racks 12V with 2 batteries of WOSAI 2 high-speed

Took such a couple of years ago. This is my first Shurik with Novya, (before that there was a skil b.U. By the way, shit is rare.) And only used by workers, all sorts of Boshas, ​​hits, makits mainly in the production of Windows could tighten the thousands of screws, or on the partitions of the gum, also had to twist, in short, there is something to compare with. In short, I freaked out and took a Vinzor at a traffic light, not because there was no money, but because Shurik was needed right now, and I choose things for a long time and thoroughly, and then I even thought to google for a day, and then I will choose something from a professional line also Bosch or Devolt. But it was a nest that Winzor survived the end of the repair from his sister, repairs from his parents, the construction of a garage, even gave it to a neighbor, and at least he would have something. In short, this is one of the most successful and profitable purchases. And before, I was waiting a little like it to break to buy a “normal” screwdriver, and now it is shore.

It did not seem to you that it was too much hanging and rummies the switch back and forth? Of course I will not disassemble my. For two days to him, under the guarantee, he will. But there is such a strong foreboding that it is this knot that I will soon die like a Polish panel. China all the same. He is in Africa. China!

The cheapest screwdriver screwdriver. Take or not?

This video shows an overview of the cheapest screw.Up Vinzor, sold in the Svetofor stores. Despite the extremely low price for this tool, he definitely deserves attention. All details in the video!

Xiaomi Wiha (OLLIVAN) Precision Screwdriver Set 24 in 1 Review. Repair kit for Cameras, Phones etc

ZJ35UND-D1O T = 5M04S 5:04 Where did this platter have a small plate? Who will tell? I can’t find a place for her) which is under the assembly under the shurik

Why is such a shit to buy? I do not understand. No one will ever make a normal screwdriver for such a price. They are disposable, so that two/three self.Tapping screws are twisted and throw out. But they sell them because they can make a big margin on them. Shops make a lot on such a chehm’s tool.

Such a shurik for 750r has been serving for the 3rd year and everything works!

The difference between expensive and cheap shuriks in the batteries that the same inside

At the end, comparison with “normal” shuriks looks inappropriate, t.To. They are from different price categories. And so thank you very much for the review.

I would like to know the full brand of the battery?

Pulled the rattle tightly and do not touch. WEAKNESS. The rest is great.

Hey! Where to stick charging. I can’t find tin

I took a couple of screws to twist at home, but in the end I use it on objects. Roofing and other drilling stretches! Pulls well screws up to 60 mm, and more than 65mm is difficult. But remembering how much I bought it, I wagged it almost no Shurik for that kind of money as much as he can

On Alik for 963 Racks 12V with 2 batteries of WOSAI 2 high-speed

Took such a couple of years ago. This is my first Shurik with Novya, (before that there was a skil b.U. By the way, shit is rare.) And only used by workers, all sorts of Boshas, ​​hits, makits mainly in the production of Windows could tighten the thousands of screws, or on the partitions of the gum, also had to twist, in short, there is something to compare with. In short, I freaked out and took a Vinzor at a traffic light, not because there was no money, but because Shurik was needed right now, and I choose things for a long time and thoroughly, and then I even thought to google for a day, and then I will choose something from a professional line also Bosch or Devolt. But it was a nest that Winzor survived the end of the repair from his sister, repairs from his parents, the construction of the garage, even gave it to his neighbor, and at least he had something. In short, this is one of the most successful and profitable purchases. And before, I was waiting a little like it to break to buy a “normal” screwdriver, and now it is shore.

It did not seem to you that it was too much hanging and rummies the switch back and forth? Of course I will not disassemble my. For two days to him, under the guarantee, he will. But there is such a strong foreboding that it is this knot that I will soon die like a Polish panel. China all the same. He is in Africa. China!