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

In addition to induction type AC asynchronous motors, there is no outside. Other motors are provided, as long as the rotor has a reversing ring.The principle of electric power generation is that a magnetic field cuts a wire to produce an electric current in the wire. The generator cuts the wires by rotating the magnetic field. A rotating magnetic field is a rotor, and the wire to be cut is a stator.

Q:What material does the power tool housing fit?

The hammer and drill: used for concrete, brick and building components on drilling, slotting, dehairing. Combined with expansion bolt, various pipelines can be improvedInstallation speed and quality of machine tools.Concrete vibrator: used for pouring concrete foundation and reinforced concrete members, tamping concrete to eliminate air holes and increase strength. Among them, electric straightThe high frequency disturbing force of the combined vibrator is driven by the motor to rotate the eccentric block, and the motor is powered by 150Hz or 200Hz intermediate frequency power supply.The planer: used for planing wood or wood structure, mounted on the bench can be used as a small bench plane. The planer cutter shaft by the motor shaft through the belt drive

Q:How to detect the rotor of power tools?

Rotor spark. 1) the carbon brush and commutator rotor, no free contact. 2) the connection spring on the carbon brush nest is burned, and the person who is burned is not able to connect normally. A vicious circle, sparks plus sparks. Machine failure will also occur.

Q:How are the I, II, and III classes of power tools classified?

The popular point is that:The 1 type of tool is metal housing with ground wire.The 2 type of tool is the insulated housing.The 3 type is low voltageOfficial point of explanation can be searched for power tool category ~!

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.

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

At the same time, reversing operation, pneumatic tools, small size, high speed rotary speed, easy to adjust, no danger of fire, the air compressor can also be used in the house, is the best choice for sheet metal, paint, furniture manufacturing, auto hub processing, etc..

Q:What power tools are used as cage birds?

If you want to do copper ornaments, you should distribute the grinding belt, flexible shaft, tool set. You can also buy a flashlight with a flexible shaft, coupled with some tools, you can also head. Bakelite milling can also be used instead of drill, a horizontal milling type fixed electric drill and milling cutter. What depends on your workload?.

Q:What are power tools?

There are many kinds of power tools! Hammer, impact drill, electric scissors, electric planer, grinder, plastic welding gun, pistol drill, electric iron, curve sawing machine and so on, there are a lot of marble.

Q:What are the commonly used rotor types for power tools?

Electric drill: the main specifications are 4, 6, 8, 10, 16, 19, 23, 25, 32, 38, 13, 49mm and so on. Figures refer to the maximum diameter of the drill drilled on the steel whose tensile strength is 390N/mm. 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. The electric screwdriver adopts the embedded clutch, transmission mechanism or gear drive mechanism. The specifications include M1, M2, M3, M4, M6 and so on.The hammer and drill: used for concrete, brick and building components on drilling, slotting, dehairing. With expansion bolts, installation can improve the speed and quality of pipeline, machine equipment; impact hammer principle is to rely on the internal movement of the piston impact force, impact principle of impact drill is running in gear impact force, so the impact hammer is greater.