Determination of Acceptable Values of the Device Parameters that Measure the Working Depth of Soil Working Machines
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In the article, it is noted that a device for mechanized measurement of the working depth of soil tillage machines has been developed, and the results of multi-factor experiments conducted to determine the optimal values of the main parameters affecting its measurement accuracy (the diameter of the parallelogram mechanism, the width of the hub and the vertical load applied to it) are presented. Multivariate experiments were conducted according to plan V4. In this case, the absolute value of the difference between the average values of the processing depth determined by the existing method and device was taken as an evaluation criterion.The data obtained in the experiments were processed by the "planexp" program and a regression equation was obtained that adequately represents the evaluation criterion. Cochran's criterion was used to evaluate the uniformity of variance, Student's criterion was used to evaluate the value of regression coefficients, and Fisher's criterion was used to evaluate the adequacy of the regression model. According to the obtained regression equation, the device for mechanized measurement of the working depth of soil tillage machines - in order to measure their working depth with high accuracy, the diameter of the base wheel is 37.19-38-34 cm, the width of the axle is 12.94-13.43 cm, and the vertical it was determined that the loading should be in the range of 192.34-201.0 N.
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