基于仿生学的桑条切割锯齿设计及切割模拟分析  

Experiment on Mechanical Properties of Mulberry in Spring Cutting Period

作　　者：王波[1] 黎日全 孙继鑫 韦大涣 陈永炎 WANG Bo;LI Riquan;SUN Jixin;WEI Dahuang;CHEN Yongyan(School of Artificial Intelligence and Smart Manufacturing,Hechi University,Yizhou Guangxi 546300,China)

机构地区：[1]河池学院人工智能与制造学院,广西河池546300

出　　处：《装备制造技术》2021年第12期13-19,共7页Equipment Manufacturing Technology

基　　金：广西2021年度中央外经贸发展专项资金茧丝绸项目:智能蚕桑茎叶采摘装备系统研究及示范(桂工信纺药〔2021〕231号);河池学院重点科研项目(2019XJZD006);河池学院重点科研项目(2020XJZD002);自治区级大学生创新训练项目甘蔗茎叶分离器设计(S202110605069)。

摘　　要：为了解决普通锯具切割效率低、锯切性能差、易在切割过程中产生断齿和裂纹等问题,仿生设计了一款锯具。采取有限元分析法对仿生锯具切割桑条茎杆的过程进行模拟分析,通过模拟分析验证普通锯片与仿生锯具之间存在的差异,得出与仿生锯具具有降低锯片阻力、减少切割损耗以及降低对桑条茎杆损伤程度的优点。普通锯片在切割桑条的过程中的最大形变值是0.067904 m,最小值是0.0085091 m,仿生锯片的最大形变值是0.044707 m,最小形变值是0.014813 m,普通锯片对桑条茎秆的磨损量大于仿生锯片对桑条茎秆的磨损量。以棉蝗为仿生对象的仿生锯片不但能提高桑条的采集收割效率,还降低了切割部位造成的损伤,减小了对桑树的发育影响。In this paper,the bionic cutting tool of cotton locust mouthpiece is studied,and a simple and efficient bionic cutting tool is designed by using the characteristics of bionics.Then,the process of cutting mulberry stem with bionic cutting tool is simulated and analyzed by using the finite element analysis method.The new bionic cutting tool solves the problems of low cutting efficiency,poor sawing performance and high cutting efficiency when ordinary cutting tool is used It is easy to produce problems such as broken teeth and cracks in the cutting process,and through simulation analysis to verify the differences between ordinary tools and bionic tools,it can reduce the resistance of saw blade,reduce the cutting loss and reduce the damage to mulberry stem.The maximum and minimum deformation of common saw blade are 0.067904m and 0.0085091m,respectively.The maximum and minimum deformation of bionic saw blade are 0.044707m and 0.014813m,respectively.The bionic cutter with cotton locust as bionic object can not only improve the harvesting efficiency of mulberry strips,but also reduce the damage caused by cutting parts and the degree of affecting the development of mulberry trees.

关 键 词：桑条茎秆 棉蝗口器 有限元分析法 仿生锯具 模拟分析 

分 类 号：S225[农业科学—农业机械化工程]