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:How about plug wires and cables for power tools?

Class II tools must be made of an insulated power plug, and the power plug is joined to a soft cable or cord to form a non renewable power plug. Class II tools only allow the use of non - renewable two pin power plug. The II class tools are marked with "back"". Class III tools, that is, secure voltage tools. Its rated voltage is not more than 50V, and the protection against electric shock depends on the power supplied by the safety voltage and no voltage higher than the safety voltage in the tool.

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

In accordance with the electric shock protection methods, electrical equipment is divided into the following 4 categories:0 category. The device relies solely on basic insulation to prevent electric shocks. There are no ground terminals on the live conductors of the 0 types of equipment.

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:What are the common rotors of power tools?

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.Concrete vibrator: used for pouring concrete foundation and reinforced concrete members, tamping concrete to eliminate air holes and increase strength. The high-frequency disturbing power of the electric direct acting vibrator is driven by an electric motor to rotate the eccentric block, and the motor is powered by an 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.Electric tools commonly used bearing type: 606, 607, 608, 626, 627, 628, 629, 6000, 6001, 6003, 6004, 6200, 6201, 6202, 6203, 6303, 61907, 688 commonly used carbon brush models: 50#, 408#, 43#, 44#, 303#, 21#, 6M 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 the commonly used rotor types for power tools?

Electric tools commonly used bearing type: 606, 607, 608, 626, 627, 628, 629, 6000, 6001, 6003, 6004, 6200, 6201, 6202, 6203, 6303, 61907, 688 commonly used carbon brush models: 50#, 408#, 43#, 44#, 303#, 21#, 6M etc.

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

All conducting parts must be well insulated,

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 power tools do you need for carpentry?

Woodworking power tools are woodworking tools that rely on electrical energy as a basic source of energy, and non electrical energy does not belong to power tools;