What are the power tools? Can be divided into these six
Power tools are mainly divided into metal cutting power tools, grinding power tools, assembly power tools, and railway power tools. There are six main types of common power tools, namely electric drills, electric grinders, electric wrenches and electric screwdrivers, electric hammers and impact drills, concrete vibrators, and electric planers.
1. Electric drill
The main specifications are 4, 6, 8, 10, 13, 16, 19, 23, 32, 38, 49mm, etc. The numbers refer to the maximum diameter of a drill drilled in a steel with a tensile strength of 390N/mm. For non-ferrous metals, plastics and other materials, the maximum drilling diameter can be 30-50% larger than the original specifications.
2, electric planer
is used for planing wood or wooden structural parts. It can also be used as a small planer when installed on a bench. The knife shaft of the electric planer is driven by the motor shaft through a belt.
3, electric hammer and electric impact drill
is used for drilling, grooving and roughening concrete, brick walls and building components. Combined with expansion bolts, it can improve the installation speed and quality of various pipelines and machine tools.
4, electric grinder
A tool for grinding with a grinding wheel or disc. There are straight electric grinders and electric angle grinders.
5, electric wrench and electric screwdriver
is used for loading and unloading threaded couplings. The transmission mechanism of the electric wrench is composed of a planetary gear and a ball spiral groove impact mechanism. Specifications are M8, M12, M16, M20, M24, M30, etc. The electric screwdriver adopts a jaw clutch transmission mechanism or a gear transmission mechanism, and the specifications are M1, M2, M3, M4, M6, etc.
6. Concrete vibrator
is used to compact concrete when pouring concrete foundations and reinforced concrete components to eliminate air holes and increase strength. Among them, the high-frequency disturbance power of the electric direct-coupled vibrator is formed by the rotation of the eccentric mass driven by the motor, and the motor is powered by a 150Hz or 200Hz intermediate frequency power supply.
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