- Gear characteristics
- They are made up of toothed wheels
- Sprockets have similar parameters
- The sprockets move in the opposite direction
- They don't slide off each other
- They can be of different types
- They take up little space within the design
- They can be loud
- They are used in multiple applications
- References
A gear or gear is a mechanism used to transmit mechanical power from one element to another, through rotary or reciprocating movements.
The gears are toothed wheels of different sizes that fit together, and through this mechanical complement the transmission of movement to the rest of the machinery occurs.
The gears are frequently used to transmit movement from the main axis of a mechanism, to the complementary parts located at a certain distance from said axis.
This type of application can be observed in engines, for example. The main gear or motor gear, is in charge of transmitting the movement to the rest of the structure, through the driven gear.
Gear characteristics
Gears are used in engineering as fundamental pieces of mechanical design, in order to transmit mechanical power from one application to another.
To fulfill this function, they must have certain characteristics, which are detailed below:
They are made up of toothed wheels
The gears generally consist of two toothed wheels, one small and the other large, called pinion and crown respectively.
The teeth of the wheels can vary, and have a straight or helical shape, depending on the mechanical application.
In turn, if the system consists of more than two sprockets, the gear system is called a gear train.
Sprockets have similar parameters
The teeth of the wheels that make up the gear have the same dimensions. This allows the perfect coupling between both pieces, and consequently, the adequate transmission of movement.
The sprockets move in the opposite direction
The toothed wheels that make up the gear move in the opposite direction relative to each other. This mechanism facilitates the transmission of movement between both parts.
They don't slide off each other
Gear drives do not slip or slip relative to each other, as in the case of pulleys.
This favors an exact power transmission ratio between gear parts, ensuring that the result and impact of movement within the system is always the same.
They can be of different types
Depending on the arrangement of the axes of rotation, the gears can be parallel, perpendicular or oblique.
Parallel gears, in turn, can be cylindrical or helical. In contrast, perpendicular gears are bevel, helical, or worm gear. Oblique gears have mixed configurations.
They take up little space within the design
It is an extremely efficient mechanism that guarantees the transmission of movement within the system, using a very small space within the application.
They can be loud
If the system is not properly lubricated, the gears can be very noisy while the power transmission process is taking place in the system.
They are used in multiple applications
The use of gears has spread in all types of automotive, industrial and general engineering applications. They are also used on a small scale in fine watches, toys, electrical appliances, among others.
References
- Gears (sf). Recovered from: dim.usal.es
- Gears (sf). Recovered from: edu.xunta.es
- Pérez, Á., Haya, D., Sánchez, R., et al. (2005). Gears Recovered from: groups.unican.es
- Pérez, J. (2017). Definition of Gear. Recovered from: definicion.de
- What is a gear? (sf). Recovered from: idr.mx
- Gear Tutorial (nd). Recovered from: electronicaestudio.com
- Wikipedia, The Free Encyclopedia (2017). Gear. Recovered from: es.wikipedia.org.