The gear is the main part in the gear. It looks like a disk covered with teeth around the entire circumference. During rotation, they engage with the teeth of another such wheel, providing movement. There are two varieties (generic name for gears): driving small and driven large. Often you can find just a reduction in the larger - the wheel. Defining such a part is easy - it will certainly have six or more teeth. They are usually used in pairs and have a different number of teeth, and this scheme provides the conversion of torque (external force that is applied to them) and transmits rotation between the shafts. The gear ratio shows the ratio of revolutions per minute, it can be calculated in the ratio of the size of the gears, as well as the ratio of the number of teeth.
Such parts are used in almost all existing mechanisms, providing the possibility of mechanical movement:
- In cars, with their structure and inside the machines themselves (for example, inside the gearbox);
- In shipbuilding;
- In agricultural machinery;
- In construction equipment (crane);
- In the industrial sector: mining and food industry;
- In the arrangement of railway cars;
- In military equipment (for example, in a tank);
- In pumps - hydraulic machines;
- In the mechanism of various winches and hoists;
- In the clockwork.
Since the invention of the gear system, the use of it in a water clock by the Romans, this principle has become the basis for creating rotational motion in almost all the mechanisms that extort it. Particular attention to the work of such parts was given by the famous inventor of innovative machines - Leonardo da Vinci.
Today, they are used everywhere and have several varieties and well-established manufacturers. The catalog of the latter can be found here: http://moskva.all.biz/, choosing by manufacturer and class.
In the derivative sector of such parts, the countries of the CIS and the European Union have proven themselves well. Many companies provide dealer services in this sector, such as LLC “ENERGOGENERATSIYA” from Kharkov.
Now the market is filled with various types of wheels, advanced technologies create wheels with a transverse, longitudinal and circular tooth line, with internal gearing, sectorial, bevel, with rack and pinion transmission. In recent decades, manufacturing methods have been applied using a comb, a worm cutter and a cutter, using both cold and hot rolling. Such manufacturing systems work to increase the strength and durability of the metal, by the way, with this metal they manufacture motor parts .
When choosing gears, you should pay attention to their strength and noise range. It is important to select the necessary hardness for the corresponding mechanism, guided by the tips on the operation of each individual mechanism.