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1、直动式溢流阀的结构简单价廉经典结构:缓冲间隙导向,防偏置.偏流盘：流线型泄油口,平衡液动力.将整个调压范围分区，采用不同刚度的调压弹簧，以使特性曲线更加理想大流量的场合压力波动大、装配调节困难…114th–15thJanuary2004,BoschRexrothinChina锥阀结构 球阀结构214th–15thJanuary2004,BoschRexrothinChina插装式结构：314th–15thJanuary2004,BoschRexrothinChina应用举例：直动式阀的缺陷：大流量
2、的场合压力波动大、稳定性差装配调节困难414th–15thJanuary2004,BoschRexrothinChina先导式溢流阀的基本原理由直动式的缺陷而来.液压力与弹簧力;液压力与液压力液压半桥514th–15thJanuary2004,BoschRexrothinChina先导式溢流阀的结构614th–15thJanuary2004,BoschRexrothinChina714th–15thJanuary2004,BoschRexrothinChina泄荷阀：ＤＢＷ814th–15thJanuary2004
3、,BoschRexrothinChina泄荷阀ＤＢＷ的泄荷缓冲板利用电信号泄荷响应很快，易造成系统的压力尖峰，噪音等，为了解决上述问题，加装缓冲板，见图示914th–15thJanuary2004,BoschRexrothinChina多级调压模块：DB3U1014th–15thJanuary2004,BoschRexrothinChinaForconstantpumpForvariablepump,relationshiptoDR-control.Softoperation,unloadingstart.(与DB
4、W相同）1114th–15thJanuary2004,BoschRexrothinChina1214th–15thJanuary2004,BoschRexrothinChina直动式三通减压阀的结构1314th–15thJanuary2004,BoschRexrothinChina应用举例1414th–15thJanuary2004,BoschRexrothinChina1514th–15thJanuary2004,BoschRexrothinChina先导式减压阀的结构(两通式）1614th–15thJanuar
5、y2004,BoschRexrothinChina先导式、滑阀结构、三通减压阀力士乐独特设计大通径3通减压阀最大流量400l/min.1714th–15thJanuary2004,BoschRexrothinChina先导式、滑阀结构、三通减压阀1814th–15thJanuary2004,BoschRexrothinChina1914th–15thJanuary2004,BoschRexrothinChina2014th–15thJanuary2004,BoschRexrothinChina顺序阀利用压力来控制油
6、路的通断，相当于一个液控的二位二通的方向阀。与溢流阀类似，只是后接工作油路，一般控制油需外泄。2114th–15thJanuary2004,BoschRexrothinChina先导式顺序阀的结构先导控制油经4.1作用于阀芯5,来改变主阀芯上腔的压力2214th–15thJanuary2004,BoschRexrothinChina卸荷溢流阀的结构和工作原理先导阀一次开启通过球阀9;此时阀杆6处于力平衡状态,开启后,主阀上腔压力下降.二次保持通过顶杆6;此时,顶杆6一侧卸荷;顶杆6的作用面积比球阀的作用面积大10%
7、或17%.2314th–15thJanuary2004,BoschRexrothinChina2414th–15thJanuary2004,BoschRexrothinChina2514th–15thJanuary2004,BoschRexrothinChina2614th–15thJanuary2004,BoschRexrothinChina流量控制阀分类：节流阀调速阀分流集流阀刹车阀(平衡阀)防管路爆破阀（限速切断阀）2714th–15thJanuary2004,BoschRexrothinChina节流阀MG
8、/MK…6~302814th–15thJanuary2004,BoschRexrothinChinaMK-52~1022914th–15thJanuary2004,BoschRexrothinChina节流阀3014th–15thJanuary2004,BoschRexrothinChina精密节流阀F-5~103114th–15thJanuary2004,
