基于Adams的甘蔗收割机切割器运动学仿真分析  

Kinematics Simulation Analysis of the Sugarcane Harvester Cutter based on Adams

作　　者：谢峰[1] 郭金兵[1] 廖娜[1] 刘赟东[1] 关成君[1] 

机构地区：[1]中国农业机械化科学研究院,北京100083

出　　处：《中国农业科技导报》2016年第4期87-92,共6页Journal of Agricultural Science and Technology

基　　金："十二五"国家科技支撑计划项目(2014BAD06B00)资助

摘　　要：为探究收割机切割器运动对甘蔗收割质量的影响,提高切割器的切割质量,研究了甘蔗收割机双圆盘切割器的运动学规律,推算出描述该运动规律的计算公式。通过公式计算,得出最佳参数匹配,利用pro/E建立甘蔗切割器三维实体模型,在Adams中进行运动学仿真,对刀刃上单点运动进行分析,得出了刀刃单点的位移、轨迹的运动规律图。结果表明,在不同前进速度、不同刀片数目的情况下,随着公式系数P的增加,甘蔗被重复切割次数会增加,通过合理选取系数,可以算出准确的刀盘转速以达到特定的切割效果。当系数P取1或2时,能够控制甘蔗被一刀或两刀切断,是比较理想的切割效果。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.

关 键 词：甘蔗收割机 双圆盘切割器 运动学模型 ADAMS仿真 轨迹 

分 类 号：S225.53[农业科学—农业机械化工程]