INVESTIGATING A LABORATORY MODEL OF VIBRATION TILLAGE MACHINE

Abstract

There are given patterns of changes in the amplitude-frequency characteristic of a laboratory model of tillage machine equipped with the inertial vibration exciter of the planetary type. Structure of the laboratory model allows changing its mass, the magnitude of driving force of the vibration exciter, and the frequency of its action. The analysis of experimental data is presented in the form of the regression equation describing the vertical vibration amplitude of the laboratory model depending on its own mass, mass of the runner, and the rotor speed of the vibration exciter. The chosen factors are important, and have a significant impact on the response function. It was experimentally established that the increase in vibration amplitude occurs with the increased rotor speed of vibration exciter and weight of the runner. The increase in the weight of laboratory model results in the decreased vibration amplitude. There is described the dependence of vertical vibration amplitude of the model on the structure of ballast simulating working tools of the subsoiler. It has been established that the most efficient way is to place the center of mass of the mounted vibration machine close to the tractor by installing the larger number of working tools in the first row. The results obtained allowed us to substantiate design parameters, and to calculate the vertical vibration amplitude of the experimental vibration subsoiler equipped with the inertial vibration exciter of the planetary type.