The research results of length and diameter of the grinding drum combine harvester harvester
As a result of researches of sizes of technical characteristics of combine harvesters of domestic and foreign models and modifications values of length and diameter of the hammer drum of combines are analyzed. Theoretical and empirical laws of distribution series, mathematical expectation, mean square deviation, coefficient of variation, confidence interval of mean value, 95% range of length and diameter distribution of the grinding drum of combine harvesters and the length coefficient of the grinding drum in diameter are obtained.