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丹佛斯动力技术交流——转向系统powersolutions.danfoss.comOptionaltextDanfossPowerSolutionsDate|2目录•转向系统的工作原理与应用•转向器介绍•优先阀介绍•流量放大器介绍•外置阀块介绍•转向系统的设计•装机注意事项•故障排除OptionaltextDanfossPowerSolutionsDate|3转向系统的工作原理及应用主要功能及工作原理OptionaltextDanfossPowerSolutionsDate|4o全液压油缸驱动转向o方向盘控制转向系统的应用领域应用领域OptionaltextDanfossPowerSolutionsDate|5转向器介绍主要功能及工作原理o干什么用的o常见的转向方式o如何实现转向o为什么用摆线转向器OptionaltextDanfossPowerSolutionsDate|6转向器介绍内部主要结构OptionaltextDanfossPowerSolutionsDate|7转向器介绍弹簧设定OptionaltextDanfossPowerSolutionsDate|8MenuON:OpencenterNonreaction开芯无反馈转向器产品介绍功能分类OR:OpencenterReaction开芯有反馈OptionaltextDanfossPowerSolutionsDate|9EFPBOpencenter开芯Loadsensing负载敏感Closecenter闭芯Powerbeyond功率优先转向器介绍系统分类OptionaltextDanfossPowerSolutionsDate|10WorkingHydraulicEnginePumpPP-bleedLS-bleedA1A2A3A4A5AdWorkingHydraulicEnginePumpPP-bleedLS-bleedA1A2A3A4A5Ad负载敏感转向器介绍——第一代，静态OptionaltextDanfossPowerSolutionsDate|11负载敏感转向器介绍——第二代，动态WorkingHydraulicEnginePumpPP-bleedLS-bleedA1A2A3A4A5AdDyn-bleedWorkingHydraulicEnginePumpPP-bleedLS-bleedA1A2A3A4A5AdDyn-bleedOptionaltextDanfossPowerSolutionsDate|12WorkingHydraulicEnginePumpPP-bleedLS-bleedA2A3A4A5AdDyn-bleedWorkingHydraulicEnginePumpPP-bleedLS-bleedA2A3A4A5AdDyn-bleed负载敏感转向器介绍——第三代，OSPFOptionaltextDanfossPowerSolutionsDate|13TypesVariantsDescriptionDisplacementccm/revMaxsteeringpressure,barOSPMON,PB,LSdMinisteeringunitforsmallervehicles32-100140OSPBON,OR,PB,CN,LSSteeringunitwithnovalvefunctions50-500210OSPCON,OR,ORM,LS,LSd,LSR,LSRd,LSRMdSteeringunitwithvalvefunctions40-500210OSPFLSdSteeringunitfulldraindynamicloadsensingandwithvalvefunctions40-500210OSPDON,ORM,LSd,LSRd,LSRMdSteeringunitwith2displacementsandwithvalvefunctions60/120-125/440210OSPQLSd,LSRdSteeringunitwith2flowamplificationandwithvalvefunctions80/125-160/320210OSPULSdSteeringunitwith2flowamplificationandwithvalvefunctions58/116-125/500210OSPLLS,LSdSteeringunitforlargervehicles520-1200240OSPBXLSPilotsteeringunitforOSQstatic160-400210OSPLXLSPilotsteeringunitforOSQstatic520-800240OSPCXLSdPilotsteeringunitforOSQdynamic160-400210OSPCXCNPilotsteeringunitforEHPS50-100125Menu转向器介绍转向器分类OptionaltextDanfossPowerSolutionsDate|14转向器介绍OSPM（PB）•适合小吨位机型•体积最小，质量最轻•转向力矩最小•可内置功能阀选项•可以直接与方向盘连接OptionaltextDanfossPowerSolutionsDate|15转向器介绍OSPB（CN）•基础型•无内置功能阀选项•一个摆线副OptionaltextDanfossPowerSolutionsDate|16转向器介绍OSPC（ON）•OSPB+功能阀选项•一个摆线副OptionaltextDanfossPowerSolutionsDate|17转向器介绍OSPL（LS）•适合大吨位机型•内置功能阀选项•一个摆线副•更小的压降和内泄•P口压力高达240barOptionaltextDanfossPowerSolutionsDate|18转向器介绍OSPD（ON）•内置功能阀选项•两个摆线副•可实现紧急转向OptionaltextDanfossPowerSolutionsDate|19转向器介绍OSPU（LS）OptionaltextDanfossPowerSolutionsDate|20PT总排量摆线副流量放大阀OSPU转向器介绍——流量放大原理OptionaltextDanfossPowerSolutionsDate|21Flow(l/min)RPM10010OSPDOSPUfactor4ManualdisplacementOSPUfactor3OSPUfactor250102550OSPU转向器介绍——流量线性放大OptionaltextDanfossPowerSolutionsDate|22Flow(l/min)RPM5010251005010转定子排量流量逐渐放大放大因子：2工作路面行走x1,5X2,0OSPU转向器介绍——流量非线性放大OptionaltextDanfossPowerSolutionsDate|23•定义(10km/h,250N,5-8s,12m)•意义(安全)•趋势(欧美、印度)OSPU转向器介绍——紧急转向OptionaltextDanfossPowerSolutionsDate|24优先阀介绍CFLSPPPEFABC(PP)OptionaltextDanfossPowerSolutionsDate|25DescissionstobetakenforchoosingtherightpriorityvalveApplicationRequestOLStypessuitableMountingformOSPmountOLSAInLineOLSInLinePumpmountOLSPMaxpumpflow40,80l/minOLSA,OLSP,OLS40/80InLine120,160,320l/minOLS120/160/320InLineLSreliefvalveRequestedinOLSOLS160/320InLineDistanceOSP–OLSRulesofthumb:4m:useinternalPPAnyOLS4m:useexternalPPAnyOLSInLineSystemtypeStaticforOSPB,OSPC,OSPD,OSPLAnyOLSwithStaticspool.Spring4,7,10barDynamicforOSPB,OSPC,OSPD,OSPL:dynamicflowlevel0,6-0,9l/minAnyOLSwithDynamicspool.DynamicorificeØ0,6-0,8mm.Spring(4)7,10(12)barDynamicforOSPC/OSPD”highdynamic”,dynamicflowlevel1,0-1,3l/minAnyOLSwithDynamicspool.DynamicorificeØ0,9-1,0mm.Spring7,10(12)bar优先阀介绍分类及选型OptionaltextDanfossPowerSolutionsDate|26流量放大器介绍OSQ内部结构OptionaltextDanfossPowerSolutionsDate|27流量放大器介绍OSQ管路连接OptionaltextDanfossPowerSolutionsDate|28流量放大器介绍OSQ原理图OptionaltextDanfossPowerSolutionsDate|29流量放大器介绍OSQAVSOSQBOptionaltextDanfossPowerSolutionsDate|30流量放大器介绍InternalPPVSexternalPPOptionaltextDanfossPowerSolutionsDate|31外置阀块介绍OVP•贴合OSP装配•内置阀功能选项OptionaltextDanfossPowerSolutionsDate|32外置阀块介绍OVR•管路中装配•空间紧凑时可以优化管路设计•内置功能阀选项OptionaltextDanfossPowerSolutionsDate|33装载机转向系统的设计•转向系统的选择•转向器排量的确定•部件选型•推荐方案OptionaltextDanfossPowerSolutionsDate|34转向系统的选择开芯、闭芯转向系统•开芯转向器需独立的定量泵为其供油，能量损耗大。•闭芯转向器需独立的变量泵为其供油，成本高。•开闭芯转向系统转向反应最灵敏。OptionaltextDanfossPowerSolutionsDate|35转向系统的选择负载敏感转向系统•LS型转向系统可以与工作系统共用一个泵，通过优先阀实现转向优先。•LSStatic：能量损失最小。（两头忙等不推荐）；•LSdynamic：动态LS，避免热冲击，能量损失小。•OSPF：操作手感更好。OptionaltextDanfossPowerSolutionsDate|36•有反馈：转向后，松手，方向盘回转。•无反馈：转向后，松手，方向盘不回转。•当转向系统的排量比较大，同时客户又需要有反馈的转向系统，建议推荐使用RM，可以实现方向盘的快速回转。转向系统的选择反馈OptionaltextDanfossPowerSolutionsDate|37转向系统的设计转向器系列的选择价格OSPUOSPEOSPCOSPDOSPMA-高端版块C-性价比版块D-价格版块VSP性能B-高性能版块OSPLOptionaltextDanfossPowerSolutionsDate|38转向系统的设计转向系统的计算OptionaltextDanfossPowerSolutionsDate|39转向系统的设计转向系统的计算OptionaltextDanfossPowerSolutionsDate|40转向系统的设计转向排量的计算OptionaltextDanfossPowerSolutionsDate|41转向系统的设计转向排量的确定OptionaltextDanfossP