关键词: 履带, 培土机, 螺旋, 数学模型, 试验

Abstract: In order to solve the unmatched problems between mechanized ridging and agronomic requirement in the process of tobacco production, this paper suggested to adopt screw-type banking machine with track chassis, and designed a track chassis drive system with transmission and screw cutter plate and screw-type banking machine. The kinematics and dynamics mathematical model of the screw mechanism was established and the key indicators affecting the quantity of screwed soil by orthogonal experiment was studied. The experimental results showed that when the screw cutter radius was 130 mm, pitch was 110 mm, working depth was 30 mm, screw rotation speed was 260 r/min, the quantity of screwed soil was accord with designed requirements. The results of prototype machine in field experiments showed that screw-type banking mechanism had met all the agronomic requirements of tobacco banking.

Key words: track, banking machine, screw, mathematical model, test