甘蔗压榨机液压传动系统与其静动态特性数字仿真与糖厂压榨提汁生产线plc集成控制.研究

《甘蔗压榨机液压传动系统与其静动态特性数字仿真与糖厂压榨提汁生产线plc集成控制.研究》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、广西大学硕士学位论文made，establishedthestaticanddynamicmathematicalmodelssystembymearlofthepowerbondgraphs．Onthebasisofmodifyingtheoriginaldigitalsimulationprogram，thedigitalsimulationstudyismade．Theup—axishydraulicsystemischosenasatypicaltoanalyzethewholesystemsperformance．Theresultshowsthatthedesignsystemha

2、sgoodstaticcharactersanddynamiccharacters．Thefactorsofthehydraulicsystem．suchasthelinesize，thebackedpressure，theinertiaoftherotarypartsandtheloadmagnitudehasdifferenteffectonthesystem’sbehaviors．Thelinediameter,thebackedpressureandtheloadmagnitudeareimportanttoaffectonthesystem．Withthesystemstructur

3、esimplificationtodifferentdegree，thecapabilityofwhichisdifferent．Thisdiscusshereaffirmthatthestudymodelinthethesisisanoptimizingone．Accordingwiththespecialtyofthegrindingproductiveline，theadvancedagilityandcrediblePLCintegratedcontrolsystemisdesignedtoinplaceofRelaycontrolsystemthatownsbadreliabilit

4、yandbadalterability．Theenvironmentisimproved，Italsomeetsthetidalcurrentofmaterialtransportationcontrolling，tallywiththeuptrendofthescienceandtechnologyinthesugar-refinery．AreasonableprogramandatheoreticalmodelareprovidedforthepracticaldesignanddebugofthefluiddrivesystemofSugarcaneMillSOaStoshortenit

5、sdesignperiod，andareferenceforstudyofothershydraulicsystemoftheequipmentinthesugar—refinery．Italsoaffordsaviablemannerforintegratedcontrolonthegrindingorothertechnologicproductiveline．KEYWORDS：SugarcaneMilldigitalsimulationfluiddrivemodelestablishingstatic&dynamiccharactergrindingcaneproductivelineP

6、LCintegratedcontroV广西大学硕士学位论文符号说明。——液压系统回路油液流动速度m／sn．——液压系统主油泵转速rpm"，——液压系统补油泵转速rpmp——系统流量，￡min“p——系统压力，Mpa，——轴向柱塞变量泵的斜盘倾角

7、Rhl——主泵泄漏液阻，Mpa·1．7。·minRk2——补油泵泄漏液阻，Mpa·L-。·minP——泵或马达的额定工作压力，MPa”。——马达的额定转速，rpmq——泵的每转排量，mL，1q。——马达的每转排量，mL∥1口。——泵或马达的容积效率％——泵或马达的机械效率f——液压主泵输入转矩N．mw．——液压主泵输入转速伊mC——变量泵的液容￡．Mp

8、a‘V——压力油腔体积m3K——油液的体积弹性模量，MPa月。——换向阀液阻，Mpa∥min【’一换向阀流量系统，O．65。，⋯一换向阀通径，mx——换向阀阀口丌度，mp——油液密度，900q№m。)V广西天津硕士聿li论炙(1——换向阀半径间隙，m卸——换向阀阀L】两端压差，MPaR+．——安全阀液阻，Mpa．￡一，rainp、——溢流阀开启压力，MPn尸——溢流阀调定压力，MPag：．——溢流