Q:Why hand grinding sand turbine, electric drill, impact drill and other power tools plug is two, plug is not three plug

In recent years, leakage protection performance and the reliability greatly, has become a standard power supply, reliability of human protection over ground protection to a certain extent, but the impact of grounding protection and leakage protection to human body protection, so many hand-held electric tools to cancel the earthing protection, relying instead on leakage protector. And use the two eye plug.Look at the instructions for the hand-held power tools with two plugs. All require that the power supply be equipped with an electric leakage protector.

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:How about plug wires and cables for power tools?

Class II tools, that is, insulated structures, all double insulated power tools. The specified voltage is over 50V, and the grounding device is not allowed in class II tools. Generally insulated enclosures. Generally speaking, the design of II tools made use of personal protective equipment operator to some reliable method in the tool, the tool has a double protective current, guarantee in the fault state, when the basic insulation failure, insulation and reinforced insulation provided by additional electric shock protection.

Q:What other tools are there for the furniture except the pistol hole?

As we all know, a hand drill is an AC power supply or a DC battery powered drilling tool. It is a kind of hand held power tool.

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

Pneumatic tools are the mainstream trend, pneumatic tools more suitable for long time work, rather than power tools, permanent fever, and even burned out the internal parts, pneumatic tools can be seen more secure. Power tools initial investment is low, but long-term use of energy consumption is higher, and tool maintenance and replacement costs are higher, and pneumatic tools more environmentally friendly, long-term use cost is much lower than the electric.

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 are the commonly used rotor types for 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: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 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: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..