Q:What's the role of carbon brushes in electric tools?

Changing the direction of the current (in the commutator motor brush, also plays a role reversal)

Q:What material does the power tool housing fit?

Electric drill: the main specifications are 4, 6, 8, 10, 13, 16, 19, 23, 32, 38, 49mm and so on. The figures refer to the steel whose tensile strength is 390N/mmThe maximum diameter of a drill drilled on a material. For non-ferrous metals, plastics and other materials, the maximum drilling diameter is comparable to the original specifications of 30 to 50%.Electric grinding machine: a tool for grinding with a grinding wheel or millstone. A vertical electric wheel and electric angle grinder.Electric wrench and electric screwdriver: used for loading and unloading threaded fittings. The driving mechanism of the electric wrench is composed of a planetary gear and a ball screw groove impact mechanism. Specifications are M8, M12, M16, M20, M24, M30 and so on. An electric screwdriver adopts a clutch, a transmission mechanism, or a gear drive mechanismThere are M1, M2, M3, M4, M6 and so on.

Q:How to detect the rotor of power tools?

The rotor has no force. Most of them are burned out of the rotor, and many rotors can be removed if they are removed. One can distinguish, such as commutator commutator shedding, excessive wear. Have the commutator between electrodes and arc erosion serious. Rotor winding, inhaled by the fan, damage caused by damage to the rotor.

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: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:Which is good between pneumatic tools and power tools?

The use of pneumatic tools:1., the air is easy to obtain, and the work pressure is low, the used air can be discharged locally, without the need to recover the pipeline2. gas viscosity is small, flow resistance loss is small, easy to central gas supply and long-distance transportation3. pneumatic actuator, high movement speed4. the pneumatic system has a strong adaptability to the environment. It can work reliably in a wide temperature range, humid and dusty environment, with a slight leakage, no pollution to the environment, no fire and explosion hazards, and safe use5., simple structure, convenient maintenance and low cost6. long life of pneumatic components7. pneumatic actuators of the hydraulic output than small, fast, strong adaptability, can exercise in the flammable, explosive, heavy, damp, the impact of the harsh environment, no environmental pollution, long service life, simple structure, easy maintenance, low price.

Q:Compared to pneumatic tools, what are the advantages of electric tools?

The pneumatic tool is more environment-friendly, energy-saving, and has better environmental adaptability, and is safer than an electric tool. The pneumatic tool has the advantages of simple structure, convenient operation, long service life and convenient maintenance

Q:What are the common rotors of power tools?

Power tools are mainly divided into metal cutting, power tools, grinding power tools, assembly of power tools and railway power tools. Common electric tools electric drill, electric grinder, electric wrench and electric screwdriver and hammer, impact drill, concrete vibrator, planer. Accessories for each power tool: rotor, stator, gear, bearing, switch, carbon brush, carbon brush holder, carbon brush cover, power cord. Go down and stop repeating.

Q:What is the working principle of power tools?

AC motor, AC motor of induction motor, its strong induction current (eddy current) magnetic field generated in the rotation of the magnetic force on the rotor copper bar, continuous cutting, according to Lenz's law, the induced current has the effect of relative motion occurs against the rotor magnetic field and the rotor is, with the magnetic field and rotation. But the rotor rotation speed of the high speed magnetic field does not transform, otherwise it will not be able to cut the copper lines.

Q:What kind of material does the power tool case have?

An electric tool case is made of a variety of materials, such as plastics, cast iron, etc..