Tractor caterpillar is a device of transport used mainly in heavy Vehicles, like Tanks and Tractors or another type of vehicles. consists of a set of modular links that still allow a stable irregular land displacement.
The majority of the caterpillars comprises of strongly flexible Belt with a set of rigid links united an a others. The links help the vehicle to distribute the weight in a surface greater than the one than hubierta had with the use of Wheels and this causes that it can move by a greater number of surfaces without sinking due to his own weight. For example, Pressure that exerts an automobile on the ground is equal approximately to 207 k Pa, whereas the seventy tons that weighs a car M1 Abrams exert a pressure on the firm one of 103 kPa.
A tractor caterpillar was designed in the year 1770 by Richard Edgeworth . Nevertheless the British Sir George Cayley patented it with the denomination of " universal railway" or universal railroad. In the year 1837 a Russian inventor Dmitry Zagryazhsky designs a species of vehicle with movable sections and that the same year patents. Nevertheless due to a great lack of bottoms a prototype cannot elaborate. As result its patent were forgotten in 1839. The tractors pushed steam used a form tracked that was proven by the western alliance during War of Crimea in 1850s . An effective caterpillar was invented and implemented by Alvin Lombard, that patented in the year 1901 .
After the beginning of operations of Lombard, Hornsby in England manufactured at least two vehicles " guidances by orugas", and its patent later was acquired by Holt in 1913, allowing to Holt popularly to be known like " inventor " of tractors caterpillar. Hornsby made a version for the British army of which later it would be the inspiration of " tanque" ".
The tractor caterpillar has been the foundation of the design of tanks .
The tratores with one denominated Shovel ahead are Bulldozers and usually are used in the construction to remove earth.
The caterpillar has been used in some of the vehicles of the field like aid to Agriculture .
Space shuttle is transported to its launching site by means of great transporting caterpillar .
The vehicle with greater caterpillar of the world is Excavating German Bagger 288 .