DESIGN AND TESTING OF PICKUP TOOTH CONVEYOR BELT TYPE BUCKWHEAT PICKUP DEVICE

To address the high rate of grain loss in the two-stage harvest of buckwheat, a pickup tooth conveyor belt type buckwheat pickup device was developed to mitigate the grain loss in the buckwheat pickup process. The critical components of the pickup mechanism and conveyor mechanism were designed, and the essential parameters were determined. The operational efficiency of pickup tooth conveyor belt type buckwheat pickup device was verified through field orthogonal test. The field test results indicate that the loss rate is most significantly affected by the speed of the pickup tooth, followed by the tilt angle of the pickup tooth. the forward speed of the combine exerts minimal influence. After the multi-objective parameters of the regression equation model were optimized, the optimal parameters of the factors were obtained: the speed of the pickup tooth was 0.8 m/s, the forward speed of the combine was 1.1 m/s, and the tilt angle of the pickup tooth was 0 degrees, Under this condition, the loss rate of buckwheat grain reached 6.92%.