Study of the Process of Threshing Leguminous Grass Seeds With a Drum-Type Threshing Device

Abstract

The article presents the results of studies of the process of threshing leguminous grass seeds with a drum-type threshing device. The process of material movement in the working gap of the drum deck was modelled and the intensity of the action of the working on the material under optimal operating conditions was substantiated. The dependence of the completeness of threshing alfalfa seeds on the number of rasp bar actions on the material on pendulum copra and in a threshing device was obtained based on the results of laboratory research. The influence of the design and technological parameters of the threshing device on the efficiency of threshing alfalfa seeds, as well as on the energy indicators of their operation, has been determined. The rational parameters of the threshing device are substantiated, which ensure complete threshing of seeds at the level of 96.5-98.2%, and damage to no more than 0.8% of seeds.

Effects of Unbalanced Incentives on Threshing Drum Stability during Rice Threshing

“…The density of the material is 7.85 ρ/g•cm 3 , the yield strength is 225 MPa, the allowable shear stress is 15-25 MPa, and the allowable bending stress is 40 MPa. These parameters can better improve threshing efficiency and reduce damage to rice [23].…”