THE INFLUENCE OF THE PARAMETERS OF A PLOT-MAKER TO MAKE THE PLOT-DEEPENING AROUND THE STUBS ON THE EFFICIENCY INDICATORS OF ITS PROCESS

Abstract

Introduction. A technical process and a design  of a plot maker to make the plot-deepening around the stubs, contributing to the decrease of  the abrasive wear of  the cutter elements of operative devices of the machines to cut down the height of stubs when reducing them  to fragments below the surface level, were developed.  The plot-maker is  mated to tractor МТЗ-80/82, extensible hydraulic manipulator ЛВ-210, and  screw-shaped rotator. It consists of a frame, rotary operating devices, a two-stock hydraulic actuator, fluid-power motors, a hydraulics, and  controls; it is  designed to remove the soil around the stubs  (radius – 60-90 сm, depth – 15-20 сm) and to clean the lateral surface of stubs from pollutions . The goal of the research was to define the influence of  design values and linkage parameters of the plot-maker on the  performance indicators of its operation. Results. The cartograms of clearing the lateral surface of stubs as well as the dependences of performance indicators of the  technical process of the plot-maker (completeness of clearing of lateral surface of a stub, average power of cleaning, and  energy input when operation) on the  design values (distance between centres of rotors, distance between the units of rotor, and rigidity of a cable at bends) and  linkage parameters (rotor speed and rate speed of rotator) were obtained. The optimum range of the studied characteristics of the device (rotor speed should be 3-5 s^-1, rate speed of rotator ­– 0,2-0,3 с^-1, distance between centres of rotors – 80-84 сm, distance between the units of rotor – 15-20 сm, rigidity of a cable at bends – 70-80 n/m2⁾  were determined. Conclusion. The results of the research can be used when  a multifaceted structural optimization and a technical process of a plot-maker to make the plot-deepening around the stubs.