Effect of picking rollers on corn stover attitude

In order to increase the precision rate of ear picking and decrease the rate of cob damage, this paper investigates and evaluates the impact of ear picking rollers on corn stalk attitude. It then designs an ear picking roller with a straightforward structure and good ear picking effect. This is because the ear picking process and ear picking attitude are more closely correlated. To ascertain the relationship curve between the influencing factors that cause plant push back and the stalk forward tilt angle, as well as the optimal value range of the stalk feeding speed and cutting table tilt angle, virtual simulation tests are conducted using ADAMS software. The front end of the stalk pulling roller is optimized to be tapered in order to minimize the degree of forward tilt of the stalks. The optimal range of values for the bottom angle of the front end of the stalk pulling roller is 73.1°-81°. The ideal value of the bottom angle of the stem-pulling roller's front end and the parameter combination with the least amount of plant forward tilt were found using a response surface optimization test design. At a machine travel speed of 0.85 m/s, the cutting table inclination is 27.5° and the stalk tilting angle is at its lowest, which is roughly 2.5°. Through testing, it was confirmed that the conical stem pulling roller's design could successfully lessen cob damage and the forward tilt of the stalk.