Transmission and Transformation of Motion

Transmission of Motion

The transmission of movement has the same type of movement at the beginning and the end.

There are 5 systems we will be discussing Chain and sprocket

Belt and pulley

Gears

Friction wheels

Pulley

Chain and Sprocket

The chain and sprocket is a system with a gear and a chain linking between them.

A very typical example of this a bicycle.

Motorcycles also work on the same principle.

Chain and Sprocket

Belt and Pulley

A belt and pulley system are very similar to the chain and sprocket system.

This uses a belt and a pulley to transfer from one pulley to another.

This is used in car engines.

Belt and Pulley

Gears

Gears move through direct contact between two or more gears.

This is also used in cars, but this time in the transmission.

Gears

Friction Gears

This is a system where two smooth gears rub together to transmit movement.

This is used in printers and printing presses to move the paper through.

Friction Gears

Pulleys

This is a system with a pulley and a rope.

It is used to lift objects.

This is the only system which transmits rectilinear motion.

All of the others transmit circular motion.

Pulleys

Transformation of Motion

The transformation systems change the type of motion that is present on either side of the system.

There are 4 systems we will be discussing Connecting rod and crank

Cam and follower

Rack and pinion

Screw and nut

Rod and Crank

In this system, the movement of piston going up and down causes the crank to turn.

This is used in car engines and steam trains.

This involves circular to alternative motion

Rod and Crank

Rod and Crank

Cam and Follower

This system involves a cam (an off center wheel) pushing a follower causing it to go up and down.

This is used in car engines as well as sewing machines.

This involves circular to alternative motion

Cam and Follower

Cam and Follower

Rack and Pinion

A rack and pinion are composed of a rack, a flat gear, and a pinion, which is a gear.

As the rack moves back and forth the pinion rotates and also the other way around.

This is used in the steering system of cars.

This involves circular to rectilinear movement.

Rack and Pinion

Rack and Pinion

Screw and Nut

This involves a nut being moved by the circular motion of the screw.

This is used in scissor jacks.

This is circular to rectilinear movement.

Screw and Nut

Screw and Nut