Design of a straw picking and cutting device  

作　　者：Kai Xu Yanyan Ge Maohua Xiao Min Kang Jie Ni Jinwu Wang 

机构地区：[1]College of Engineering,Nanjing Agricultural University,Nanjing 211800,China [2]Shandong Daye Co.,Ltd.,Zhucheng 262218,Shandong,China

出　　处：《International Journal of Agricultural and Biological Engineering》2021年第6期93-98,共6页国际农业与生物工程学报（英文）

基　　金：supported by Jiangsu Agricultural Science and Technology Innovation Fund of China(CX(19)3071);the Fundamental Research Funds for the Central Universities(KYXK2021001);the High-Level Talent Project of“Six Talent Peaks”in Jiangsu Province of China(GDZB-023).

摘　　要：In order to improve the effective recovery of straw,a new type of straw picking and cutting device was designed.A new type of roller moving knife mechanism was used which can realize simultaneous picking and cutting.A hammer claw was used to pick up and cut straw for the first time,and a roller moving knife was used to cut straw for the second time.ANSYS software was used to conduct static and modal analyses of the moving roller shaft and optimize the structure of the cutting part and the staggered arrangement of hammer claw.The first-order resonance frequency of the hammer claw shaft is 205.84 Hz,and the first-order natural frequency of the pulling roller moving knife mechanism is 214.35 Hz,which can avoid resonance and realize efficient picking and cutting of straw.

关 键 词：STRAW hammer claw roller moving knife mechanism fixed knife 

分 类 号：TG3[金属学及工艺—金属压力加工]