Motion Conversion

In this type, the mechanisms converts the movement from the driver element into a movement that the driven element can use. The examples are: Screw and nut, rack and pinion, cams and eccentric.

Screw and nut

This mechanism consists of a screw and a nut. The rotatory motion of the nut is converted in forward linear motion in the screw.

Rack and pinion

This mechanism consists of a pinion that meshes with a rack.

Crank and slider

This mechanism consists of a connecting road that is connected at one end to a crank.

Rotary Transmission

These include friction wheels, belt and pulley systems, gears, chains and sprocket systems and worm gears.

Friction Wheels

They are a set of two wheels located one next to the other. Motion is transmitted between the wheels by the friction between them.

Belt and pulley system

This system is made up of two pulley wheels joined by a belt that slots into the grooved rim of the wheels.

Gears

It is a mechanism consisting of two wheels with teeth.

Chain and sprocket systems

This system consists of two sprockets separated by a distance and connected by a chain that meshes with the teeth of the two wheels.

Worm gear

This rotary trasmission mechanism consists of a worm that is fitted to de driver shaft and toothed wheel that is fitted to the driven shaft.

Linear Transmissions

These are a type of simple machine. Examples include pulleys and levers.

Levers

A lever is a rigid bar that can pivot on a point of support called a fulcrum.

CLASSES

Class 1

The fulcrum is located between the weight.

Class 2

The fulcrum is at one end of the lever and the effort is at the other end.

Class 3

The effort is located between the fulcrum and the resistance.

Pulleys

Pulleys are used to lift heavy loads. They are wheels with a grooved rim.