基于EDEM的分层深松施肥铲设计与结构优化

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中图分类号：S222.2 文献标识码：A 文章编号：2095-5553（2025）12-0200-09

Abstract：Tosolvetheunstable fertilizationdepthof theintegrated tilage，preparationand sowing machine，astratified deep-pine fertilizer shovel was designed.Aplication scheme for the stratified use of diammonium phosphate，potaium sulfateslow-releasefertiizer，andurea slow-release fertilizer werealsoadopted，whichallowsthecorn toabsorb the appropriate nutrients during diferentgrowth periods，thusincreasecorn yields.Through theoretical researchand parameter calculation，thecorecomponentsand mainoperating parametersof thelayered subsoiling fertilization shovel wereconfirmed，andthekeyfactorsaffcting thefertilizationfectofthelayeredsubsoiling fertizationshovel were determined，including thetensionangleofthewingshovel，thelower fertilizer tubeangleandthe machine working rate. Thedeviationcoeficientoffertilizationdepthofeach layerwastakenasthetestevaluation standard，andthethree-factor five-levelquadraticorthogonalrotationcombinationtestwascariedoutbyusingthediscreteelementmethod.Theresults showedthat when the tensionangle of the wing shovel，the lower fertilizer tube angle and the machine working rate were 14∘ ， 60.5∘ and 5.5km/h ，the deviation coeficients of fertilization depth of the upper，middle and lower layers were 4.03% ， 3.13% and 6.27% ，respectively，which indicated that the fertilization efect met the design requirements.

Keywords： corn ；layer fertilization；subsoiling fertilization shovel；tillageand sowingmachine

0 引言

施肥铲作为耕整播一体机的关键组成部分，其工作性能直接决定施肥质量。（剩余12524字）