中国农业科技导报2024，Vol.26Issue(4)：87-96,10.DOI:10.13304/j.nykjdb.2022.0937
风沙土混拌刀具的改良设计与试验
Design Improvement and Test of Aeolian Sand Mixing Cutter
摘要
Abstract
In order to solve the core problems existing in the development of aeolian sand equipment and discuss the interaction mechanism between mixing cutter and aeolian sand-soil modification material,this paper analyzed its working principle based on the national standard rotary tiller IT245,and designed a special mixing cutter for aeolian sand improvement on this basis.Through the Discrete Element Method simulation and laboratory tests,the mixing effect of IT245 and special cutter at 5 depths was analyzed by using the ratio of soil modification material to sample volume as evaluation index.The larger the deflection angle was,the larger the volume ratio of the soil material was,and when the depth was 150-120 mm and deflection angle was 60°,the maximum value was 35.67%.The larger bending angle was,the larger volume ratio of soil modification material was,and when the depth was 150-120 mm,bending angle was 130°,the maximum value was 36.02%.The comparison results of mixing effect between aeolian sand mixing cutter and national standard rotary tiller IT245 showed the shallower the depth,the larger the volume ratio of the soil modification material,the better the mixing effect.when the depth was 90-60 and 60-30 mm,the volume ratio of soil modification material of aeolian sand and soil mixing cutter with deflection angle 60° increased by 3.19%,5.11%,respectively.The mixing process and mixing effect of aeolian sand and soil modification material were studied,which provided basis for the design and optimization of aeolian sand mixing cutter and aeolian sand treatment machinery.关键词
风沙土/改土材料/离散元/混拌刀具/混拌效果Key words
aeolian sand/soil modification materials/discrete element/mixing cutter/mixing effect分类
农业科技引用本文复制引用
李明,董帅,庞永强,燕洁华,叶汪忠..风沙土混拌刀具的改良设计与试验[J].中国农业科技导报,2024,26(4):87-96,10.基金项目
国家重点研发计划项目(2018YFC0507102) （2018YFC0507102）
内蒙古自治区高等学校科学研究项目(NJZY22520) （NJZY22520）
内蒙古自治区高等学校科学研究项目(NJZY21485). （NJZY21485）
