Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/103262
Title: Theoretical background for the development of stationary process of grain mass threshing with a combine harvester
Authors: Lovchikov, A. P.
Ognev, I. I.
Issue Date: 2020
Publisher: EDP Sciences
Citation: Lovchikov A. P. Theoretical background for the development of stationary process of grain mass threshing with a combine harvester / A. P. Lovchikov, I. I. Ognev. — DOI 10.1051/e3sconf/202019301004 // E3S Web of Conferences. — 2020. — Vol. 193. — 01004.
Abstract: The article considers the issue that further improvement of the grain combine design with the classical threshing-separating device is possible due to the development of its technological scheme based on the principle of modular construction and stationary process of threshing grain mass. To achieve this goal, the problems were solved, by which laws were revealed and a mathematical description of the technological process of the combine harvester was given, as well as patterns characterizing the effect of straw on the process of grain mass threshing were revealed. In the course of research and evaluation of the effectiveness of the combine harvester's usage the basic laws characterizing the technological process of combine harvester with the classical threshing-separating device are established. The change of the working speed of the combine depends on the technological properties of grain crops. It is revealed that the coefficient of solomitol grain mass δc is possible to reduce during combining grain crops through the application of high-cut stems. It was found that with the increase in the height of the cut of the stems (wheat) from 0.10 to 0.20 m, the coefficient of straw content of the grain mass decreases from 0.726 to 0.578. The additional material of experimental studies to determine the coefficient of straw content of the grain mass δc depending on the diameter and length of the pinned part of the stem is presented. When harvesting grain crops by the method of combing, a grain-bearing mass is formed, which is characterized by a random ratio of the fractions of the straw of the stalk of the annular part. The chaotic structure of plant parts temosolomida mass poses new challenges to supply it in the threshing-machine combine harvester with a classic threshingseparating device. © The Authors, published by EDP Sciences, 2020.
Keywords: CROPS
GRAIN (AGRICULTURAL PRODUCT)
HARVESTERS
MANUFACTURE
MODULAR CONSTRUCTION
MATHEMATICAL DESCRIPTIONS
RESEARCH AND EVALUATION
STATIONARY PROCESS
TECHNOLOGICAL PROCESS
TECHNOLOGICAL PROPERTIES
TECHNOLOGICAL SCHEME
THRESHING MACHINES
THRESHING-SEPARATING
COMBINES
URI: http://hdl.handle.net/10995/103262
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85097136907
PURE ID: 20225087
d422a067-6c23-48a5-ae30-3c7a5f0935af
ISSN: 25550403
DOI: 10.1051/e3sconf/202019301004
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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