What are the main factors affecting the running of wheeled tractors
What are the main factors affecting the running of wheeled tractors? Small tractor price manufacturers Huaxing agricultural machinery editor today to give you a brief introduction:
(1) Rolling resistance the rolling resistance of a tractor is mainly caused by the deformation of the tire and soil. Under the weight of the tractor, the tire is flattened and the soil is compacted. In the process of rolling, the wheel is compressed and deformed on the parts of the tire contacting with the ground along the direction around the circle, and the soil in front of the wheel is pressed down to form ruts, which results in rolling resistance that prevents the wheel from rolling forward. There are many factors affecting the rolling resistance, which are mainly related to the firmness of the ground and the vertical load on the degree of moisture. For the same tractor, if the ground conditions are different, its rolling resistance is also different. For example, if the rolling resistance is small when driving on asphalt, cement or dry hard ground, the tractor traction is large. Under the same conditions, if the weight added on the tire is larger, the soil deformation in the vertical direction is larger, and the rolling resistance is also larger.
(2) Tractive resistance tractive resistance is the resistance to be overcome when the tractor drives the agricultural machinery to work, which is equal to the tractive force transmitted to the agricultural machinery by the tractor through the connecting device. Since the tractive force is equal to driving minus rolling resistance, increasing driving force and reducing rolling resistance are effective measures to improve tractive force.
(3) The driving force is the horizontal reaction of the road surface to the driving wheel. Therefore, the driving torque MK transmitted by the internal combustion engine to the driving wheel through the transmission system indicates that the greater the driving force PK of the tractor. But since MK is determined by the power of internal combustion