Improvement of the conveyor bar of the inclined chamber of a grain harvester

The paper studies the fact of premature failure of the feeder house conveyor elements of the TORUM 785 combine due to fatigue failure. It is known that during operation, conveyor bars often fail, which is a consequence of using conveyor bars from combines with lower productivity and power without additional modernization and improvement. A conclusion is made about the need to develop a conveyor bar design that will meet the necessary requirements, namely, one whose service life will be at least 700 hours. The task was solved using various methods of strength theory, theoretical mechanics, finite element modeling, as well as using the SolidWorks and Excel software packages. Keywords combine harvester, fatigue failure, conveyor, cyclic load, fatigue strength