EXPERIMENTAL INVESTIGATIONS OF CRAWLER TRACTOR AT CURVILINEAR MOVEMENT

Abstract

Purpose of the paper – is to create a measuring complex, develop a methodology and carry out experimental investigations of curvilinear movement of the Belarus 1802 crawler tractor.The measuring complex and methodology for determination of kinematics and forced parameters of crawler tractor turning ability have been developed. Experimental investigations of curvilinear tractor movement have been carried out and they have shown that an increase in its movement speed leads to a decrease in its actual angular speed. It is explained by an increase in a radius of tractor’s turning. While increasing a speed difference of crawler a torque of a running track is increasing and a torque of a lagging track is decreasing and it even takes a negative value. Having a towed load of 20 kH a lagging track thrust force is also decreasing but it does not pass in the are of negative values, in other words, both tracks move in a traction mode. A minimal radius of tractor turning is 1.42 m. Relative minimal kinematics radius of turning is 0.89 m.The created measuring complex and developed methodology for investigations are transferred to Separate Design Bureau of the Republic Unitary Enterprise «Minsk Tractor Plant» and they are used for experimental investigations of crawler tractors