超宽幅棉花打顶机喷杆结构优化与田间作业性能验证

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中图分类号：S224.4；S233.3 文献标识码：A

文章编号：0439-8114（2025）11-0182-07

DOI：10.14088/j.cnki.issn0439-8114.2025.11.025 开放科学（资源服务）标识码（OSID）：回

Optimization of the spray boom structure and field operational performance of an ultra-wide cotton topping machine

ZHANG Shuang-xia¹，WANG Jial， LIU Sheng-chong1， TIAN Duo-lin1，LIU Xin-jun1，QIN Guang-quan²

5cholofAgiculturalEngieering，inangAgriculturalVocatioalandTchicalUiversityhangjiO，iga 2.Xinjiang Duojia WesternAgriculturalScienceand Technology Co.，Ltd.，Changji 8311oo，Xinjiang，China）

Abstract：Thestructuralcharacteristicsandoperationalrequirementsof the3WPZ-5OOselfpropeledultra-widecotontopping machineweresystematicallanalyzed.Astructural modelofthesprayboomwasconstructedbasedonSolidworkssoftware，andthemechanicalpropertiesofthesprayboomstructureweresimulatedandanalyzedusingtheABAQUSfiniteelementmethod.Itsoperational performancewasverifiedthrough fieldtests.Theresultsshowedthattheultra-widedouble-link spray boomsuspensiondesignimprovedthefieldworkingeficiencyandnvironmentaladaptabilityofthtoppngmachine.Stressanalysisofthfiniteelementodelof thframe structurerevealedthatthe maximumstress（34.2 MPa）occurrdat thefthconnectingplate（ZoneII），anarea withcomplexforcesandhighinteraloads.Thisvalueassignificantlylowerthantheyieldtrength（345.0MPa）oftheQ345Bsteelusedfor thesprayboom，indicating thatthemainstructureof hesprayboommetthedesignstrengthrequirements.Theultrawidecoontopping machine demonstrated high efficiency and effectiveness in chemical topping.After the Υ2 treatment （spray volume of 20 L/667 m² withairasisteddelivery），keygrowthindicatorsofotonplantseresignificantlyoptiizedParameterssuchasplanteightumberoffruit branches，andheightofthetopthreeleaves/petiolelength indicateduniformandrobustplantgrowth，withthenumberof bolls per plant reaching 9.33.This indicated that the Y2 treatment effectively suppressed vegetative growth while promoting high cotton yield and increased profit.

Key words：cotontopping machine;ultra-wide；sprayboomstructure；field；operationalperformance；optimization;validation

新疆地域辽阔、光照充沛，为棉花生长提供得天独厚的优势，截至2023年，新疆棉花产量占全国总产量的 90.99% ，为国民经济发展作出了重要贡献[1-3]。（剩余8339字）