What mechanical principle is used to screw a screwdriver?
The principle of gear transmission: that is, a pair of gears of the same modulus (tooth body) are meshed with each other to transmit power from a shaft to a b axis, and a way to accomplish power transmission.
A screwdriver can be seen as a driving wheel, and a screw can be seen as a driven wheel
Using the principle of gear transmission, gear drive is the use of two gear teeth meshing, transmission power and motion of the mechanical transmission.
The lever principle is very simple, the point is the fulcrum is a metal rod screw, screwdriver, force back screwdriver with wooden handle
