The first tractors were driven by steam engines (Lokomobile). Later in Europe the diesel engine as a power source, while in America for some time and petrol engines were used. Until the 1970s tractors had rather modest engine performance, but for high torque and high-defined gearbox. Modern tractors are often over 100 kW power and can sometimes up to 80 km / h speed. Especially high performance sports show on tractors, for the Tractor Pulling used a motor sport which in the 20th Century in the United States and came in the early 80s also spread over Europe. When Tractor Pulling involves a brake, his Zugwiderstand streckenabhängig increased to a 100 m track as far as possible thereafter. In the outdoor category, the services of tractors sometimes up to 10,000 hp. A very well-known design, the Lanz Bulldog of 1921, which even after the Second World War as a model for many buildings worldwide served today and lovers prices. He belongs in every meeting of historic tractors simply in different areas of Germany developed the name Bulldog colloquially even become synonymous with the term tractor. The Lanz plant in Mannheim was established in 1956 by John Deere and is now the largest tractor factory in Europe. The way in the Treckerentwicklung were the inventions of the three-point rear suspension with hydraulic (hydraulic three-point) by Harry Ferguson and the PTO, from around 1960 and general-out of agricultural tractor from a very versatile devices used tractors made. Outside of agriculture tractors are also known as the circus tractors and road construction. Also in the local Green Care and street cleaning, the use of special mostly smaller tractors increased more and more.
The plough is a tool used in agriculture since ancient times to shake up the soil and prepare it for subsequent working either directly for sowing. The plow in a historical sense is a kind of evolution of pickaxe, once pulled by oxen or directly by the people and today, in developed countries with mechanical tractors. The ploughing serves to incorporate the remains of the previous crop in the soil, cut the presence of weeds and fragment the land in anticipation of next sowing (usually after exposure to adverse weather conditions and subject to further working with other gear). The plow includes three sets of components, all linked to a frame bearing said bure. Bodies of attack. They are arranged at the front of bure and serve to implement the tool to a tractor or animals with holding tow. In the case of ploughs brought coupling device is adapted the attack to three points in the tractor: consists of two pins side, which applies two hydraulic lift arms of the tractor, and a central brac...
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