Working performance of cleaning units of combine harvesters on sloped fields
- Publication Type
- Contribution to conference
- Authors
- Böttinger,S.; Fliege,L.
- Year of publication
- 2011
- Published in
- VDI-Berichte
- Editor
- VDI-MEG
- Pubisher
- VDI Verlag GmbH , Düsseldorf
- Page (from - to)
- 63-68
- Conference name
- VDI-MEG Tagung Landtechnik
- Conference location
- Hannover
- Conference date
- 11.-12.112011
- Keywords
- Mähdrescher, Reinigungsanlage
The performance of a combine harvester is determined by the maximum throughput at acceptable grain losses. At optimum throughput, the cleaning system reacts very sensitively to variations of the inclination, whereby the influence of lateral inclination is much higher than the influence of longitudinal inclination. The influence of inclination up to 15% on the
performance of cleaning units with lateral hillside modulation is describe in this paper. For this purpose several combines of equal type of construction have been analysed in different crops using large-scale parcel tests. The deployed measurement instrumentation corresponds to the series-production status of the combine harvesters. Various testing conditions and systematic errors make the handling of the collected data very complex. However, it enables the evaluation of the measurement characteristics of different sensors at variable inclination. The results display a possible triplication of cleaning losses in different throughput ranges between 15 and 55 t/h already at a lateral inclination of 10%. The influence of longitudinal inclination is marginal.