Influence of the properties of the soil environment and the regimes of motion on the shaping of the blade of the working member

Abstract

The influence of the physical-mechanical and rheological properties of the soil and the modes of motion on the formation of the surface of the blade of the soil working machinery, on the example of the cultivator's paw, when moving in the abrasive medium is considered. The geometric shapes of the surface of the cultivator legs blade are obtained by varying the soil moisture, its density, the coefficient of lateral pressure and the speed of the cultivator's paw. It is established that when the working speed of the cultivator changes in the direction of growth, an increase in the initial value of the angle of the paw of the paw and its current value is observed. The most intense increase in the value of the current angle is observed in the width of the wing in the range from 0.04 m to 0.12 m. In addition to the angle of the slope, the shape of the blade of the paw of the cultivator is also changing. The most significant influence on the shaping of the surface of the cultivator's working body is the moisture content of the soil. When changing the humidity, the greatest increase in the value of the current angle of inclination is observed in the range from 18 to 22 degrees throughout the width of the capture. With a moisture content of 24%, the greatest angle of inclination is observed, due to the fact that the moisture is pumped into the coupling coefficient, the angle of internal friction and the density of the soil. The obtained results indicate that an increase in the value of the lateral pressure coefficient results in an increase in the current value of the angle of the paw in the width of the capture. The most significant influence of this index is observed for the interval on the width of the capture of the wings of the foot in the range from 0.04 m to 0.10 m. It was established that with increasing density of soil, the angle of the lap of the cultivator at its apex decreases. The greatest influence of soil density on the change in the value of the current angle of inclination is observed for the middle part in the range from 0.04 m to 0.1 m in the width of the capture of the wing of the cultivar.