INVENTIÓN THAT CHANGED THE HISTORY OF THE WORLD

It is one of the key inventions in the history of humanity.

The wheel is a circular mechanical piece that rotates around an axis.

INVENTIÓN

• The human being is the most fascinating and complex Earth's species.

The wheel is one of the inventions that changed the

world

It is believed that the wheel was invented 3500 a.c.

With the passage of time, this invention had all kinds of improvements.

Today the wheel is somewhat vital.

The wheel is a disc with a central hole that penetrates an axis that guides

you in motion and serves as a support.

SOME OF THE MOST USED WHEELS ARE

Sprocket: Mainly used for the transmission of rotary motion between axes

The sprocket (gear, sprocket) is basically a wheel with the perimeter completelycovered with teeth. The most common type of gear wheel carries (longitudinal)straight teeth but also there are curved, oblique teeth..

TRANSPORT WHEEL

• Used to reduce the friction with the ground.

• Need 2 components to work, a bearing to reduce the friction of the wheel.

• In automobiles and other means of locomotion more developed it is normal to also include a suspension system placed between the armature and the support and whose mission is to prevent the imperfections of the soil are transmitted to the load), one of braking and the other direction.

PULLEY

• Has three parts: body, bucket, and throat.

• Employed both for the transmission of movements to the reduction effort by raising or moving weights.

• The body is the element that unites the cube with the throat.

• The cube is the central part which includes the hole, allows to increase the thickness and facilitates the union of the pulley with the shaft or axle (for both turn solidarity).

• Throat is the part that comes in contact with the string, the deepest part is called a rim. You can take different forms flat, semi-circular, triangular