Trends and expediency of classifi cation of combine harvesters
https://doi.org/10.26898/0370-8799-2019-4-9
Abstract
The work presents the results of the analysis of combine harvesters’ classifi cation systems applied in the former USSR, the Russian Federation and the CIS countries, as well as in the USA and Argentina. The expediency of their application is shown depending on the purpose of combines, advertising, organizing their production and operation in various climatic and industrial conditions. Classifi cation by structural and energy parameters is necessary when developing new combines. However, it does not reveal the potential functionality of combines and the effi ciency of their work in specifi c zonal conditions with signifi cant fl uctuations in yield, moisture, straw content and other physical and mechanical properties of harvested crops. In Russia and the CIS countries, combine harvesters are classifi ed according to their nominal throughput specifi ed in the passport. It is characterized by the value of the actual supply of grain bulk in kilograms per second to the combine thresher with a grain loss of 1.5% whereby grain is threshed in the direct way with standard yield and specifi ed moisture and straw content. Previously, the standard in the USSR stipulated that testing should be carried out in areas with the yield of at least 4 t/ha. In some areas, due to a low grain yield, it was not possible to indicate the conditions of comparative tests. The standards of the Russian Federation provide for comparative testing of combines during grain threshing with a yield characteristic of the zone. This contradicts the principles of the identity of comparative test conditions. To solve this urgent scientifi c problem, it is necessary to develop alternative, less laborintensive methods for comparative testing of combines in determining their nominal throughput recommended by the Ministry of Agriculture of the Russian Federation. At the same time, it is necessary to allow underutilization of the nominal throughput of the harvester of no more than 10%. Overloading the thresher is not allowed, since it leads to signifi cant grain losses during threshing.
About the Author
G. E. Chepurin
Siberian Federal Scientifi c Centre of AgroBioTechnologies of the Russian Academy of Sciences
Russian Federation
Russian Federation
Corresponding Member of the Russian Academy of Sciences, Doctor of Science in Engineering, Head of Research Division
PO Box 463, SFSCA RAS, Krasnoobsk, Novosibirsk Region, 630501
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Review
For citations:
Chepurin G.E. Trends and expediency of classifi cation of combine harvesters. Siberian Herald of Agricultural Science. 2019;49(4):76-85. (In Russ.) https://doi.org/10.26898/0370-8799-2019-4-9
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