Design of bionic locust mouthparts stubble cutting device  

作　　者：Jiale Zhao Mingzhuo Guo Yun Lu Dongyan Huang Jian Zhuang 

机构地区：[1]College of Biological and Agricultural Engineering,Jilin University,Changchun 130022,China [2]The Key Laboratory of Bionic Engineering,Ministry of Education,Jilin University,Changchun 130022,China

出　　处：《International Journal of Agricultural and Biological Engineering》2020年第1期20-28,共9页国际农业与生物工程学报（英文）

基　　金：This work was supported by the project of National Key R&D Program of China(No.2018YFA0703300);and the National Natural Science Foundation of China(Grant no.51705194);and Science and Technology Project of Jilin(20190301023NY);and National Natural Science Foundation of Jilin(20180101090JC).

摘　　要：Given the technical problems of low maize stubble breaking efficiency,large cutting torque and high power consumption faced during springtime no-till planting in Northeast China,we designed a high-performance coupling bionic stubble cutting device capable by integrating the structure(multi-segment and serrate)and cutting mode(isokinetic and symmetrical)of locust mouthparts.Methods of bionic construction,mechanism design,theoretical analysis,parameter optimization,Arduino systems and intelligent control were combined to design a planetary gear mechanism and an intelligent speed control system.In particular,the bionic cutting blade could reconstruct the multi-segment and serrate structure of locust mouthparts,while the planetary gear mechanism and the intelligent speed control system jointly comprised the bionic drive system,which could simulate the isokinetic and symmetrical cutting mode,thereby bionically coupling morphological structures and movement patterns.Analysis of comparative tests showed the coupling bionic cutting device could reduce the cutting torque by 26.6%-31.6%and the power consumption by 21.9%-26.1%.This work confirmed that coupling bionic method can significantly improve the stubble cutting efficiency,which was a valuable contribution to the design of stubble cutting device for no-till planter.

关 键 词：BIONICS locust mouthparts cutting device corn stubble 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]