Design and experiment of an upper-side-discharge straw-returning and bundle self-unloading integrated corn residual film recycling machine  

作　　者：Xiaolong Liu Wuyun Zhao Hua Zhang Guanping Wang Wei Sun Fei Dai Hui Li Shanglong Xin 

机构地区：[1]Mechanical and Electrical Engineering College,Gansu Agricultural University,Lanzhou 730070,China

出　　处：《International Journal of Agricultural and Biological Engineering》2023年第5期61-70,共10页国际农业与生物工程学报（英文）

基　　金：the support of the Gansu Educational Science and Technology Innovation Project(Grant No.2021CYZC-25);the Gansu Science and Technology Planning Project(Grant No.21CX6NA081);the National Natural Science Foundation of China(Grant No.52165028);the Key Scientific and Technological Program of Gansu Province(Grant No.22ZD6NA046).

摘　　要：Due to the arid climate,flat terrain,certain irrigation sources and high popularization of mechanical harvest in Hexi Irrigation Area of Gansu Province,the widely adopted half film-flat-mulching for corn cultivation faces serious adverse situations,such as high soil compactness,strong film-soil adhesion,significant straw stubble and thick covering accumulation on film.Therefore,a new kind of segmented combination upper-side-discharge straw-returning and bundle self-unloading integrated corn residual film recycling machine was proposed.The scheme was characterized by small volume,low resistance,low complexity and film-impurities twice separation.It is constructed based on the concept of module subsection combination.It was composed of film surface straw cleaning device and the followed residual film recycling machine,in terms of function,any usage requirements of separate and joint operations can be satisfied.The film surface straw cleaning device is responsible for the removal of vertical corn straw and ground covering beyond the film.Although its stubble cutter roller obtuse-angle Lshaped blades paired single-helix arrangement is simple,it runs smoothly and the straw crushing effect is good enough.The layout that upper-side-discharge straw-returning cross-range screw conveyor auger is back and beyond the stubble cutter roller,eliminates the common connecting transportation mechanism between crushing and straw-returning section,so that,the system structure can be optimized and the efficiency has been significantly improved.The integrated residual film recycling machine is composed of triangular pyramid arc two-stage wing(TPATSW)type film lifting shovel,rod-tooth-belt type film-impurities separation device and semi-enclosed shaftless bundle film collector.Among them,TPATSW type film lifting shovel has good corn root whisker cutting effect,low soil contact resistance and small soil congestion area,but its ability to lift film is strong,more importantly,the special segmented configuration of shovel handle and the bo

关 键 词：CORN segmented combination film surface straw cleaning straw-returning TPATSW type film lifting shovel filmimpurities twice separation semi-enclosed shaftless bundle film collector self-unloading 

分 类 号：S22[农业科学—农业机械化工程]