Influence of the parameters of support wheels on the amount of the device of the trailer from the tracking course

Abstract

The effect of the parameters of the left support wheel of the trailed cabbage machine, the hardness of the soil and its difference under the support wheels on the magnitude of the deviation of the unit from the direction of motion were studied experimentally. It is established that the rational values of the structural parameters of the supporting-running system of the trailed agricultural machine allow minimizing the values of the longitudinal vibrations of the working bodies during the execution of the technological process. Rotating parts of the trailing machine received movement from the power take-off shaft through a specially designed drive shaft. The system for measuring and recording the deviations of the machine from a given course is represented by a bridge electrical system based on a rheostat with a sliding brush connected via an analog port to an electronic data processing system, and then to a laptop computer. As a result of the research, it was found that with a decrease in the hardness of the soil under the right wheel, the stability of the stroke is sharply reduced, while the angle of deviation of the drawbar increases to unacceptable values. This is due to the fact that under these conditions, the resistance of the soil to the support wheels of the trailing machine is mainly applied on the right side, in addition, with decreasing hardness of the soil, the rolling resistance of the wheel increases. The results of the conducted studies confirm and supplement the results of theoretical studies. Investigating the stability of the movement of the trailer with support wheels of different sizes with the same hardness of the soil, it was found that the value of the angle of deflection of the machine’s tail significantly decreases compared to the results of previous experiments and does not exceed the limits set by the agricultural requirements.