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Use the tractor to avoid the formation of the plough bottom layer

update:04-01-2019
abstract:

Use the tractor to avoid the formation of the plough bo […]

Use the tractor to avoid the formation of the plough bottom layer in the dry land to ensure the drought prevention; the paddy field prevents the hard bottom layer from being damaged and ensures the normal cultivation of the paddy field; the wheel towing grounding pressure is three times that of the tractor, and the test shows that the arable land is pulled by the wheel after the compaction rate It is only 30%-40%, and the seedling rate can still reach 80%-90% after the roller compaction. The wheeled tug of the paddy field affects the transplanting and harvesting, and even the mud feet are deepened and cannot be cultivated.

The traction of the same weight of the tractor is 1.4-1.8 times of the wheel towing. In terms of traction efficiency, the maximum traction efficiency of the wheeled tractor is 55-65%, and the crawler tractor can reach 70-80%, that is to say, the tractor with the same horsepower, the wheel The effective power of the tow engine is lost by 15% more than the drag.

The tractor carries out farmland operations. The speed of rotary tillage is generally 5~6km/h, the speed of ploughing is generally 7~9km/h, and the working speed of shovel is generally 10~12km/h. The speed of the tilling of the tractor is the same as that of the wheeled trailer. Whether it is plowing, hoeing, sowing, etc., the tractor is not slower than the wheel, and the traction advantage is obvious.

Due to its low center of gravity and high adhesion coefficient, crawler tractors have good stability against slopes and sloping slopes. They also have the characteristics of small turning radius, strong cross-counting ability, and mountainous and hilly terrain. Farmland and terrace work have better adaptability than wheeled trailers, especially when equipped with rubber crawlers, which are all-terrain working machines.