How a small cordless drill works

How a small cordless drill works

The working principle of a small cordless drill mainly relies on its internal motor and transmission system. Here’s a brief overview of how it works:

Battery Powered: Cordless drills typically use rechargeable lithium or nickel metal hydride batteries as their power source. The battery powers the motor, allowing the drill to operate without an external power outlet.

Motor drive: There is a motor inside the electric drill. When the battery is powered, the motor starts to rotate. The rotation speed of the motor can be adjusted through the speed control switch on the electric drill to adapt to different drilling needs.

Transmission system: The rotational force of the motor is transmitted to the drill bit through the transmission system. The transmission system usually includes components such as gears, shafts and bearings, which convert the rotational force of the motor into the rotational force and feed force of the drill bit.

Drill bit rotation and feed: Under the action of the motor and transmission system, the drill bit begins to rotate and generate feed force. Users can control the feed rate and depth of the drill by holding the handle and applying appropriate pressure.

Forward and reverse functions: Many cordless drills also have forward and reverse functions, which allows them to easily remove drilled screws or perform reverse drilling operations.

In short, the working principle of a small cordless electric drill is to complete the drilling operation through battery power, motor drive, transmission system to transmit rotational force and feed force, and drill bit rotation and feed. At the same time, its forward and reverse function also makes it more flexible and practical.