HARVEST LOSS TEST AND OPTIMISATION OF KEY COMPONENTS OF OILSEED RAPE CUTTING TABLES

Abstract

Aiming at the problem of high loss of oilseed rape combine harvesting cutting platform, this paper combines the biological characteristics of oilseed rape, analyses the way and reason of oilseed rape loss, selects the harvester's forward speed, transverse cutter cutting height and longitudinal cutter cutting speed three factors to influence the loss rate of the cutting platform to carry out the study on the significance of the order of significance of the following: cutting speed > forward speed > cutting height. Through the response surface analysis method, the interaction between the factors was obtained. Through the regression model of the factors affecting the loss rate, the parameter optimisation was carried out with the objective of the lowest loss rate, and the optimal parameter combinations being obtained as follows: the forward speed was 5 km/h, the cutting speed was 1.5 m/s, and the cutting height was 50 cm. Finally, the results of the model were obtained to be reliable through the experimental validation.