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

An electric drill can be used! But it can't adjust the torque! There are four types of professional screw twisting tools!

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 are the common rotors of 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.

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's the difference between a flashlight and an electric screwdriver?

Equipped with torque regulation and restriction mechanism, electric tool for screwing and unscrewing screws, the electric tool, mainly used for assembly line. Is one of the necessary tools for most manufacturing enterprises.

Q:Is BOSCH's power tools good or MAKITA's power tools?

BOSCH electric tools three characteristics:1. 、 light structure, easy to carry and use.2. more than manual tools can increase labor productivity several times to several times;3., the utility model has the advantages of high efficiency, low cost, small vibration and easy control.

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:What power tools do you need for carpentry?

The main power tools used in carpentry are:1 、 air compressor, nail gun;2 、 the saw (big) is usually installed on the worktable;3 、 cutting machine, for small action cutting;4, electric screwdriver, screw on;5, pistol drill, for door, pipe, loose leaf, desktop power supply opening;

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