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:Which is good between pneumatic tools and power tools?

The utility model has the advantages of light structure, small size, light weight, small vibration, low noise, flexible operation, convenient control and operation, convenient carrying and use, firmness and durability. Compared with hand tools, the utility model can increase labor productivity by several to several times; the utility model has the advantages of high efficiency, low cost and easy control.

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?

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:How are hand powered tools classified into class I, class II, class III?

Nowadays, class I hand held power tools are virtually discontinued. The class II hand-held electric tools are widely used. Class II hand held electric tools are generally used on special occasions such as wet environments, metal containers, etc..

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

Concrete vibrator: concrete used for pouring concrete foundations and reinforced concrete members to eliminate porosity 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.

Q:What is the working principle of power tools?

A direct current motor called a direct current motor. Due to the magnetic field circuit and armature circuit of the different links, can be divided into series motor, motor, compound motor;

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?

In 1895, the German overtone produced the world's first direct current drill. The outer shell is made of cast iron and can drill holes in the steel plate 4mm. Then there was a three-phase power frequency (50Hz) electric drill, but the motor speed failed to break through the 3000r/min. In 1914, there was a single-phase electric motor driven by a series of exciting motors, and the motor speed was over 10000r/min. In 1927, the power supply frequency of intermediate frequency electric tool 150~200Hz, it not only has the advantages of high speed single-phase series motor, and has the advantages of simple structure, reliable three-phase motor, but because the need if current supply is limited.

Q:Is Li Xiang power tool good?

If you choose the quality, it can be said to be the best in the country, but the price is a little higher than that of the East