Q:What's the role of carbon brushes in electric tools?

Carbon brush specific function1. the external current (excitation current) is added to the rotor by carbon brush (input current);2., the static charge on the big shaft is introduced into the earth (carbon brush) through the carbon brush (output current);3. lead the main shaft (ground) to the protection device for rotor ground protection and measure the positive and negative voltage of the rotor;

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 kind of power tools are hand drills? 1, 2 or 3?

I class: in the prevention of electric shock protection, in addition to relying on basic insulation, but also the need for zero protection.Class II: the tool itself has double insulation or insulation without the need to protect the ground.Class III: Powered by a secure, ultra low voltage power supply, no voltage higher than the safety supply voltage is generated within the tool.The above is the classification of insulation categories.

Q:What devices must be available for all hand held electric tools?

Hand held electric tools, insulation measures are in good condition, must be equipped with qualified leakage protection device, forbid to change the power cord and plug, use special flow switch box.

Q:What are power tools?

There are many kinds of power tools! Hammer, impact drill, electric scissors, electric planer, grinder, plastic welding gun, pistol drill, electric iron, curve sawing machine and so on, there are a lot of marble.

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

As the mechanical component, the electric screw driver can work without the electric batch power supply, and the batch power supply provides the energy and the related control function for the electric screwdriver. Drive the motor. Since the parameters of the motor are different, the speed will be different when the power of the batch power supply is the same.

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:Is BOSCH's power tools good or MAKITA's power tools?

BOSCH electric tools three characteristics:1. 、 light structure, easy to carry and use.2. more than manual tools can increase labor productivity several times to several times;3., the utility model has the advantages of high efficiency, low cost, small vibration and easy control.

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:Power tools are power tools?

Now, that's pretty much the case. Now most power tools are powered by electricity. However, some of them are pneumatic, especially the environment where no electrical work is required. This should be equipped with an air pump externally.Small, of course.