Basic Knowledge of Power Tools 1

- Jun 08, 2018 -


I. definition: the general name of the tool and equipment powered by DC or AC motors.

Two, the characteristics of electric tools are portable, portable, high efficiency and low energy consumption.

Three, use and classification

1. industrial uses: drilling, tapping, sawing, derusting and polishing. These tools are mostly professional tools with high technology content and high cost.

2. household tools: decoration, repair, installation and landscaping; these tools are not very technical, but they look good.

3. other methods of classification for electric tools:

Sanding: flat sand, triangular sand, round sand, waxing machine, angle grinder.

Cutting categories: planer, gun drill, curve saw four, classification of electric tools.

Metal cutting: profile cutting machine, steel pipe saw, electric scissors.

Sand grinding: grinding wheel, angular grinding, electric grinding, waxing machine, sander.

Assembly class: screwdriver, electric wrench, electric riveter

4. According to use

Building road types: vibrators, agitators, electric hammers, slotting machines

Mine type: rock drill and coal electric drill

Garden type: pruning machine, micro tillage machine, scarification machine, lawn mower

Woodworking class: woodworking electric drill, bakelite milling, electric circular saw, planer.

Other: dental drill, sternum saw, such as medical instruments

5, according to electrical safety protection methods (grounding, double insulation, safety voltage).

Type I tools: metal shell is more, only basic insulation, voltage greater than 50V, grounding.

Class II tools: dual insulation, voltage greater than 50V, no grounding.

Class III tools: the use of a very low safety voltage.

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