Research of passage capacity of combine harvesters depending on agrobiological state of bread mass

Abstract

Abstract The limits of reducing the numerical values of the coefficients of the influence of straw content, moisture, grain contamination, on the change in the throughput of the threshing-separating device and the productivity of the combine are calculated. The boundaries of the probable numerical values of the coefficients of straw content, moisture content and dockage of grain stand have been calculated. The probable boundaries of the numerical values of productivity after an hour of network (ha/h) were calculated, depending on the influence of single and general coefficients. The method for calculating the productivity of combines, depending on the weight of the influence of individual coefficients or their overall effect, is proposed, which will make it possible to predict the likely change in productivity in a particular field and during the harvest period with minimization of biological crop losses. To obtain the resulting coefficient of influence of the state of grain, it should be taken into account that the direction of change in the value of the coefficient of influence must coincide with the direction of its influence on the throughput. That is, the minimum value of moisture, straw content and debris corresponds to the maximum value of the throughput of the threshing-separating device.