|
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese|
HISTORY OF TECHNOLOGY, TECHNOLOGY, OBJECTS AROUND US
Tractor. History of invention and production
Directory / The history of technology, technology, objects around us Tractor - a self-propelled (tracked or wheeled) machine that performs agricultural, road construction, earthmoving, transport and other work in an aggregate with trailed, mounted or stationary machines (tools). It features low speed and high traction. It is widely used in agriculture for plowing and moving non-self-propelled machines and tools, as a rule, it is equipped with removable or fixed mounted and semi-mounted equipment for agricultural, construction or industrial purposes (for example, drilling equipment), depending on the tasks performed. For example, an industrial tractor equipped with a bulldozer blade is called a bulldozer.
A tractor is a universal machine designed to move and power various agricultural mechanisms attached to it. From this it can be seen that the functions of the tractor are twofold: firstly, it works as a tractor, and secondly, as a drive, which allows it to be used when performing a wide variety of agricultural work. The benefits of a tractor are obvious - speed, time savings, productivity. Therefore, its appearance constituted a revolution in agriculture, perhaps the most important since the advent of the plow. Since that time, mechanical traction began to gradually replace the muscular strength of animals from agricultural production. The first tractors were steam powered. Back in 1850, the English inventor William Howard used a steam car (locomobile) for plowing. The invention spread, and steam plows were widely used in the second half of the 2th century in some European countries (especially in England, where there were more than XNUMX thousand of them). The first tractors with internal combustion engines, designed by engineers Hart and Parr, were assembled in the USA in 1901. Their appearance was greeted with enthusiasm, and American farmers had high hopes for them. But disappointment quickly set in, as the tractors, due to their enormous weight, destroyed the soil more than helped to cultivate it. In addition, they were excessively large for the average farm. In the course of their use, many design flaws were discovered. Tractors often broke down, repairing them required a lot of time and high costs.
However, gradually these machines improved. In 1907, fully functional tractors entered the market. Their weight, size and power decreased, but reliability increased, which made the use of the tractor convenient on an average-sized farm. A network of repair shops was created, the production of spare parts was launched, thanks to which the negative attitude of farmers towards this machine was overcome in a few years, and the tractor industry began to grow in America. In 1920, about 200 thousand tractors of various designs were already sold in the USA. In 1912, the Holt company first began producing caterpillar tractors.
Soon the tractor took over approximately 80-90% of all arable work on the farm. In addition, the tractor engine was used to power various agricultural machines (for this it was equipped with a special pulley). Threshers, mowers, mills, sawmills, butter churns, straw cutters and other auxiliary mechanisms could be connected to it. The tractor also took on about half of the work associated with harvesting. Later, thanks to the creation of various trailed machines, the scope of the tractor expanded several times. Author: Ryzhov K.V.
▪ Zipper
Artificial leather for touch emulation
15.04.2024 Petgugu Global cat litter
15.04.2024 The attractiveness of caring men
14.04.2024
▪ Budget phone LG A290 with support for three SIM-cards ▪ Noise isolation from metamaterial ▪ Finland to launch wooden satellite into space ▪ A sensor that tracks minor facial expressions
▪ website section Television. Article selection ▪ article How to get the perfect video in nightmarish lighting. video art ▪ How did basketball get its name? Detailed answer ▪ article Motorist of a haulage pump house. Standard instruction on labor protection ▪ article Simple UHF FM receiver. Encyclopedia of radio electronics and electrical engineering
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua |
We recommend interesting articles Section 
See other articles Section 
Latest news of science and technology, new electronics:
All languages of this page