关键词: 甘蔗收割机, 双圆盘切割器, 运动学模型, Adams仿真, 轨迹

Abstract: In order to investigate the effect of cutter movement on sugarcane harvesting quality and improve the cutting quality, this paper studied the kinematics law of double base cutter in sugarcane harvester, and calculated a formula to describe the kinematics law. The best motion parameters, forward velocity of harvester, speed of cutter rotation and numbers of blades could be calculated through this formula to control the repeated cutting times. To verify the validity of the formula, a three-dimensional entity model of the sugarcane cutter was built using pro/E. The motion of the model was simulated using Adams, and the displacement curve and track diagram of the points of blades was obtained based on the simulation results. The results showed that the repeated cutting frequency of sugarcane would increase with the increase of coefficient P in the formula under the condition of different forward velocity of harvester and different number of blades. To achieve a specific cutting effect, accurate matching among parameters of rotate speed of cutter, forward velocity of harvester and numbers of blades can be calculated by selecting appropriate coefficient P. When P was 1 or 2, one-blade cutting or two-blade cutting sugarcane would be an ideal cutting result.

Key words: sugarcane harvester, double disc cutter, kinematics model, Adams simulation, track