Design and Verification of Tractor Wheels Equipped with Automatically Extensible Blades

This paper focuses on the possibility of increasing the drawbar pull of an agricultural tractor on the soil and grass-covered surface. We have compared the tractor tyre traction properties with a newly developed system of automatically extensible blades next to the tractor drive wheel tyres. The tractor with wheels equipped with auto-extensible blades reached a higher drawbar pull at an average of 70 % on the soil and 80 % on grass compared to tyres.