Open AccessSorghum harvester work quality assessment
Author(s) -
A. I. Ryadnov,
О. А. Федорова,
Р В Шарипов,
V. A. Baril
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/786/1/012030
Subject(s) - threshing , combine harvester , sorghum , header , combing , mathematics , agricultural engineering , physics , materials science , agronomy , mechanical engineering , engineering , composite material , statistics , biology
The article presents the results of experimental research on the sorghum harvester, equipped with a threshing-separating device of the inertial-combing type for harvesting Donskoe-35 variety broom sorghum, work quality in the conditions of farms in the south-western zone of the Volgograd region of Russia. The heads losses change (Q m ) dependences on the combine speed (V k ) were determined: before the threshing chamber Q m = – 0.079V k 2 + 0.426V k + 0.01, behind the header Q m = – 0.133V k 3 + 1.2V k 2 – 3.567V k + 4.1 and after the threshing chamber Q m = 0.057V k 2 – 0.321V k + 1.046, as well as grain losses (Q z ): behind the normalizer Q z = 0,03V k 3 – 0,241V k 2 + 0,686V k – 0,083, by the Q z = 0,004V k 2 + 0,025V k + 0,28 and under-threshing in a head Q z = 0,033V k 2 – 0,032V k + 0,204. The sorghum harvester threshing growing heads by a threshing-separating device of an inertial-combing type showed a high quality of work: an increased level of heads losses was observed behind the header at combine speeds up to 1.5 m/s, but they did not exceed 2.6% at a combine speed of 0.5 m/s; while studying types of grain losses, the losses behind the normalizer reached the level of 0.6% at a combine speed of 3.0 m/s; the loss of grain behind the thresher and under-threshing in the head did not exceed 0.4%.