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1、喷灌和软管灌溉两用轻小机组洒水车稳定性分析■一排灌机械工程——●———●JournalofDrainageandIrrigationMachi■■●■嘲_鬣棚neryEngineering———_—_—I??———I__?—一喷灌和软管灌溉两用轻小机组洒水车稳定性分析范永申,黄修桥,李金山,汪唐锦.,段福义(1.1}I阁农业科学院农嘲灌溉研究所,河南新乡453003;2浙江省斯必I农北经济局,浙}I-掰必314000)摘要:针对喷灌和软管灌溉两用轻小机组洒水车具有高度可升降,喷幅可调,喷灌和软管灌溉两用等特
2、点,为了提高洒水车爬坡和抗翻倾能力,对该机组洒水车纵,横向稳定性进行了分析.采用理论分析的方法分析了机组在纵横向坡度上作业时影响其稳定性的因素,并给出了其稳定性与各影响因素之间的关系.结果表明,地面粘附系数越高,对洒水车的稳定性越有利;适"-3增大轮距,增大两轮中轴线至供水管触地点的距离,降低洒水车质心高度,可提高洒水车的稳定性;增大牵引力和减小洒水车自重可提高洒水车的爬坡能力.关键词:喷灌;软管灌溉;轻小机组;洒水车;稳定性中图分类号:s275;$277文献标志码:A文章编号:1674—8530(2010
3、)03—0256—04StabilityanalysisonlightweightandsmallsizewateringcartfordualpurposeofbothsprinklingirrigationandhoseirrigationFanYongshen,HuangXiuqiao,LiJinshan,WangTangfin,DuanFuyi(1FarmlandIrrigationResearchInstitute,TheChineseAcademyofAgriculturalSciences,X
4、inxiang,Henan453003,China;2.ZhejiangProvinceJiaxingAculturalEconomyBureau,Jiaxing,Zhejiang314000,China)Abstract:Inordortoimprovetheabilitiesofslope—climbingandoverturn—resistingoflightweightandsmallsizewateringcartfordualpurposeofbothsprinklingirrigationan
5、dhoseirrigation,theverticalandhorizontalstabilitiesofthecartwereanalysed.Thefactorsthataffectstabilitiesofthedeviceinverticallyandhorizontalslopeweretheoreticallydepicted,therelationshipbetweenstabilityandvariousfactorswerediscussed,andgradientangleforno—g
6、lidingandno—overturningwascalculated.Resultsshowthathighervisciditycoefficientofgroundpossessmorefavorableadvantageforthestabilitiesofthecart.Thestabilitiesofwateringcartcanbeimprovedeffectivelybywayssuchasincreasingthespacingofwheelsandthatbetweenthemidax
7、esofwheelsandthetouchdownpointofflowpipe,reducingthehightofbary-center.Theclimbingabilitycanbeimprovedbywayssuchasincreasingthetractionandreducingtheweightofwateringcart.Keywords:sprinklingirrigation;hoseirrigation;lightweightandsmallsize;wateringcart;stab
8、ility喷灌和软管灌溉两用轻小机组是一种新型的平移式灌溉机组,由于其洒水车经常在田间运行,泥泞或起伏不定的恶劣作业环境常常影响着其通过性能,有时会发生左右倾倒或前后翻车现象,因此,分析洒水车的稳定性极其重要卜.绞盘式喷灌机是一种多功能灌溉机组,有喷灌和软管灌溉两种灌水方式,且高度和喷幅可调,满足了不同生育期,不同作物的需水状况.高度调节装置使灌水器始终处于最佳灌水高度,克服了受风影响较大的弱点,减少了灌溉水分的
