How a wheeled tractor works

A wheeled tractor is a type of tractor, that is, a tractor whose running device is a wheel (different from a crawler tractor) has two-wheel (walking tractor), four-wheel and other types. Divided into rear-wheel drive and four-wheel drive. The high-horsepower wheeled tractor has good traction performance and is suitable for high-speed operation with wide-width agricultural tools on large farms.

The working principle of the wheeled tractor's running, the tractor can run by the power of the internal combustion engine through the transmission system, so that the driving wheel obtains the driving torque Mk, and the driving wheel that obtains the driving torque then gives the ground a small and backward horizontal action through the tire pattern and tire surface. force (tangential force), and the ground faces the horizontal reaction force Pk with the same magnitude and opposite direction as the driving force.

When the driving force Pk is enough to overcome the forward rolling resistance of the front and rear wheels and the traction resistance of the agricultural implements, the tractor will move forward. If the driving wheel is lifted off the ground, that is, the driving force Pk is equal to zero, the driving wheel can only be idling on the spot. Cannot drive; if the sum of rolling resistance and traction resistance is greater than the driving force Pk, the tractor cannot drive. It can be seen that the driving of the wheeled tractor is realized by the interaction between the driving torque driving wheel and the ground, and the driving force is greater than the sum of the rolling resistance and the traction resistance.