Stainless Steel Ice Cream Scoop

Hot Products

Hit car glasses for escaping Safety Hammer

High Quality Outdoor Product PP Light Color Simple Watering Can

High Quality Outdoor Product PE Three Colors Watering Can L

26mm Electric Hammer

High Quality Outdoor Product PE Orange Watering Can L

High Quality Outdoor Product Four Colors Cartoon Watering Can

Cordless Driver Kit For Portable Powertools - 3.6V

High Quality Outdoor Product PE/PP Green Simple Watering Can L

Double-sided Whetstone 400/1000 Green Silicon Carbide

High Quality Outdoor Product Three Colors Cartoon Watering Can

FAQ

Is the motor of an electric tool the alternating current motor or the direct current motor?

The motor of a general electric tool is an alternating current motor.

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.

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)

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

All of the wires must be more tough and durable rubber covered wire. When the wire enters the shell of the motor, the rubber ring is used to protect the insulation layer of the wire from being worn out.

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

A flashlight is a drilling tool powered by alternating current or direct current batteries. It is a hand-held electric tool.The main components of a drill are a drill chuck, an output shaft, a gear, a rotor, a stator, a casing, a switch and a cable.Electric torch (pistol drill) -- a tool used for drilling metal, wood, plastics, etc.. When equipped with positive and negative reverse switch and electronic speed regulating device, it can be used as electric screwdriver. Some models are equipped with rechargeable batteries, which can work normally within a certain period of time without external power supply.

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.

Compared to pneumatic tools, what are the advantages of electric tools?

Compared with electric tools, pneumatic tools have the advantages of light weight, large output, little trouble, easy operation, convenient maintenance and little maintenance.

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.