There are four wheel drive tractors and two wheel drive tractors, both of which have their own advantages and disadvantages.
You can choose according to your actual needs. The driving ability of a tractor is driven by the power of an internal combustion engine through the transmission system, which enables the driving wheel to obtain a driving torque Mk. The driving wheel that obtains the driving torque applies a small backward horizontal force (tangential force) to the ground through the tire pattern and tire surface, while the ground faces a horizontal force Pk that is equal in driving force but opposite in direction. This Pk reaction force is the driving force (also known as propulsion force) that propels the tractor forward.
When the driving force Pk is sufficient to overcome the forward rolling resistance of the front and rear wheels and the traction resistance of the agricultural tools, the tractor will move forward. If the driving wheel breaks to the ground, that is, the driving force Pk is zero, mainly including the engine, chassis, and electrical equipment. The chassis includes the transmission system, steering system, walking system, braking system, and working device. The driving wheel can only idle in place, and the tractor cannot run; If the sum of rolling resistance and traction resistance is greater than the driving force Pk, the tractor cannot operate. It can be seen that the drive of wheeled tractors is achieved by the interaction between the driving wheels and the ground, and the driving force is greater than the sum of rolling resistance and traction resistance. Below, we have analyzed the main factors that affect tractor driving.
Fuel consumption. A four-wheel drive tractor with the same horsepower consumes more fuel than a dual drive tractor. Due to the high tire tread on the front wheels of a four-wheel drive tractor, the frictional resistance is higher than that of a flat two wheel drive tractor, whether working or walking. Higher fuel consumption is also normal. Horsepower output. Under the same horsepower model and operating conditions, the horsepower output loss of four-wheel drive is lower than that of two wheel drive. Similarly, the working quality of four-wheel drive tractors is better than that of two wheel drive tractors. Especially in heavy load operations such as plowing and deep loosening, as well as in situations where farmland conditions are not ideal, the horsepower output ratio of four-wheel drive tractors is higher, resulting in better work efficiency and effectiveness. In terms of load, the heavy-duty four-wheel drive tractor has more advantages. The scope of the application. Under the same horsepower, four-wheel drive tractors have a wider range of applications. In sloping, flat, dry, paddy, and hilly areas, four-wheel drive tractors will be suspended with front wheel drive to reduce operational difficulty. However, the dual drive tractor is not good, as mud and slopes can affect the stability and operational efficiency of the dual drive tractor. Driving and transportation on highways. The comfort and maneuverability of dual wheel drive tractors are better than those of four-wheel drive tractors; Similarly, for low load agricultural work, dual wheel drive tractors.