Results of modeling of process of acceleration of tractoranalogue "Belarus 3022 DV" with hydrovolumetricmechanical transmission
The improvement of performance of a wheeled tractor during technological operations by reducing energy losses when slipping, and the effect of the hydrovolumetric-mechanical transmission on slipping are urgent issues of great practical importance. That is why there is a need to study and analyze the process of acceleration of a wheeled tractor «Belarus 3022 DV» with hydrovolumetricmechanical transmission. The article determined the impact of laws of variation of regulation characteristics of the hydrovolumetric transmission, and of hydraulic motors working volumes on key parameters of transmission and slipping of tractor’s wheels with variable traction force on a hook and acceleration on traction range. There is a comparative analysis of the slipping of wheels of the tractor «Belarus 3022 DV» with hydrovolumetric-mechanical transmission with a tractor that has equivalent parameters, and mechanical transmission. The article presents the changes in engine power, in the operating pressure drop in the hydrovolumetric transmission, in the slipping of front wheels, in the efficiency of transmission, in the traction power on the hook on the operating volume of hydraulic motors and speed of the tractor with various laws of variation of regulation characteristics of hydrovolumetric transmission. In addition, the article discusses and analyzes the acceleration of tractor during transport operations.