Analysis Method of Combine Harvesters Technical Level by Functional and Structural Parameters
Analysis Method of Combine Harvesters Technical Level by Functional and Structural Parameters
Blog Article
The analysis of modern methods of evaluation of the grain harvesters technical level revealed a discrepancy in various criteria: comparative parameters, dimensionless series, the names of firms, the power of the motor, the width of the capture of the harvester, the capacity at the location of the manufacturer plant, advertising brands.(Purpose of research) This led to a variety in the name of harvester models, which significantly complicates the assessment of their technical level, complicates the choice of agricultural necessary to him fashion, does not give the perception of the continuity of the change of generations of combines, makes it impossible to analyze trends in their development, does not disclose the technological essence of a model, but - most importantly - combines can not be compared with each other.The figures in the name of the harvester model are not related functionally to the main parameters and performance capabilities.(Materials and methods) The close correlation in the form of a linear equation between their design parameters and the capacity of oceane eau de toilette combines was revealed.
Verification of this equation in the process of operation of the combine showed that it statistically stable and the estimates are always within the confidence interval with an error of 5-8 percent.It was found that four parameters of the variety of factors, that affect the performance of the harvester per hour net time, having most close correlation with it are: the motor power 9002nc and the square of the separation concave, straw walkers and sieves for cleaning.(Results and discussion) On the basis of the revealed correlation dependence we proposed a new method of assessment of the technical level of combines, which is based on the throughput (kg/s) of the wetted material and the size series, indicating the nominal productivity of the combine in centners of grain harvested in 1 hour of basic time.The methodological background and mathematical apparatus, linking these indicators with the basic parameters of the combine, were formed.
(Conclusions) It was noted that the application of the proposed method makes it possible to arrange all combines of the world in a certain hierarchical sequence and compare them with each other in performance.