Q:Is the motor of an electric tool the alternating current motor or the direct current motor?

The series motor is usually used. The series motor is connected in series because the stator and rotor windings are connected together, so when the current is reversed, the magnetic field is reversed, so the torque direction remains the same. However, according to this principle, the motor works at 180 degrees after the torque is gone, so even the AC motor, but also need to reverse, in order to work like a DC motor.The rectifier also needs to be rectified if it is operated under the direct current. The rectifier bridge is very small. On the circuit board, there are four diodes close together, mostly rectifier bridge

Q:What devices must be available for all hand held electric tools?

Hand held electric tools, insulation measures are in good condition, must be equipped with qualified leakage protection device, forbid to change the power cord and plug, use special flow switch box.

Q:What safety problems should we pay attention to when using electric drills or hand-held power tools?

All of the wires must be more tough and durable rubber covered wire. When the wire enters the shell of the motor, the rubber ring is used to protect the insulation layer of the wire from being worn out.

Q:Is Li Xiang power tool good?

I was doing a power tool, you said this is a good point, I suggest you buy brand electric tools, East into a really good, but you buy when I suggest you go to the East into the store to buy if to go to other places to buy will be expensive, and not necessarily the East into true. There are a lot of imitation in East into sell, buy electric tools as long as buy a good brand of machine authentication

Q:How about plug wires and cables for power tools?

Class I tools are common type power tools with a rated voltage of over 50 volts. Class I tools not only rely on basic insulation but also include an additional safety measure in the protection against electric shock. The method is that the accessible conductive parts and protection has been installed in the fixed line in the (ground) wire together, make accessible conductive parts in the basic insulation does not become damaged in the charged body. Plug for three pin plug type tool.

Q:What's the name of an electric tool for riveting screws into wood? Not understand!

If the factory is assembled, use an electric screwdriver! Only suitable for twisting small screws! Because the torque itself is not large! Like you twist it on a wood, use a Zigong drill, or a rechargeable drill! Because of these two belts with adjustable torque! Unlike an electric drill, it always turns that way! This torque is automatically separated by reaching a certain torque! If you screw a big screw, it's an electric wrench!

Q:What are power tools?

Profile cutting machine, Bo Hai Power Tools Co., Ltd. is a research and development, production and sales of Bo Sea series of power tools specialized manufacturers. In order to ensure product quality and standards, the company continuously improve the quality of employees, and the introduction of automatic production equipment and strict inspection. Bo Hai tools with low noise, and finally modified date: 2006-07-242. flashlight diamond power tools Co., Ltd. is a research and development, production and sales of Bo Sea series of power tools specialized manufacturers. Main products: electric drill, impact drill, electric hammer, electric drill, wireless, reciprocating saws, electric scissors, angle grinder, straight grinder, die grinders, sanding machine, blow... Last modification date: 2006-07-243. impact drill

Q:What is the working principle of power tools?

An electric motor that rotates by alternating current is called an alternating current motor. There are many kinds, mainly:A, the series excitation motor - rectifier DC generator for AC motor, namely into this kind of motor, at the same time shift due to alternating current in the magnetic field and the armature circuit, therefore, the direction of the torque constant remains unchanged, the machine is kept turning. This kind of motor can also be used as AC and DC, so it is also called universal motor". Vacuum cleaner, sewing machine and other household appliances, etc..B, an induction motor -- a device that rotates the rotor in the rotating magnetic field and causes the rotor to rotate due to the action of eddy currents. Rotating magnetic field is not caused by mechanical method, but by alternating electric flux in the number of electromagnets, so that the magnetic properties of the cycle of change, can be seen as a rotating magnetic field. Usually three-phase induction motor (with three pairs of magnetic poles) is used. The motion of the DC motor is just the opposite of the direct current generator. In the generator, the induced current is formed by the induced electromotive force, so they are in the same direction. In an electric motor, the current is supplied by an external power supply, and the direction of the induced electromotive force is in opposition to the armature current I.C and synchronous motor - the motor with the armature from one pole to the second pole, just the same as the current that turns into the current. This kind of motor cannot start on its own and must be operated by another motor or special auxiliary winding so that the proper frequency can be reached before it can be switched on. If the load changes and the speed changes, the speed is not in line with the AC frequency, so that the pace of disturbance, tend to stop or cause damage. Due to restrictions, it is not widely used.

Q:Is there an electric tool for screwing bolts? It's bolts, not screws

Yes, electric wrench.An electric wrench is a wrench powered by a power source or battery. It is a tool for tightening bolts. It is mainly divided into impact wrench, torsional shear wrench, fixed torque wrench, angle wrench, angle spanner, hydraulic wrench, torque wrench, rechargeable electric wrench.

Q:What kind of power tools are hand drills? 1, 2 or 3?

You can see the cable plug, the aluminum shell is inserted three I tools, is grounded, the aluminum shell and some II tools, because it has a plastic insulation between the stator and the aluminum shell, so it is the installation of two wire plug.