美国威格士电磁阀，VICKERS叶片泵

美国威格士电磁阀，VICKERS叶片泵伊顿和威格士拥有的产品品牌：Eaton、vickers、char-lynn、aeroquip和hydroline等等，包括全部液压产品线，可以为广大用户提供动力源、控制元件、执行器、连接件、污染控制和全套的液压系统。 　　威格士流体动力的主要市场包括建筑、农业、传统工业、冶金、矿山、船舶、园艺、和风电等。依靠其*的分销网络，无论用户在何处都可以享受到威格士流体动力提供的快捷便利的服务，从传统工业到行走机械，从单个元件到整个液压系统，威格士流体动力是您在范围内液压产品的可靠伙伴。
VICKERS子母叶片泵特点
　　1、子母叶片的结构设计，减少了叶片对定子的冲击，在较高的工作压力和高转速下，性能更稳定，寿命更长。 　　2、子母叶片结构本身具有低噪音的特性。12叶片的设计、流量脉动很小，噪音更低。 　　3、多排量的选择。以及泵芯的插装式结构，使用户使用更灵活，维修更方便。 　　公司理念 　　VICKERS威格士流体动力，打造您值得信赖的液压产
VICKERS电磁阀原理
美国威格士电磁阀，VICKERS叶片泵　　VICKERS电磁阀和安全阀为一体，组成先导式压力阀，该阀即是卸荷阀又是安全阀，有时又是溢流阀．卸荷时其控制油道贯穿各路换向阀，同前述卸荷油道．当各路换向阀处于中立位置时，卸荷阀的控制油道（见图1b和图2）贯穿各路换向阀并与油箱连通．卸荷时，大部分油液卸荷，通道短，压力损失低．任一路阀换向工作，便切断控制油道，油源来油就从换向阀进入执行元件工作，其工作压力大小由导阀控制．此时系统压力为导阀调整压力．该种卸荷方式，即使换向阀路数增加，只是控制油道增加，卸荷压力增加不大，始终保持较低卸荷压力，此种卸荷方式多用于手动换向阀，卸荷可靠． 　　VICKERS电磁阀（又是安全阀）的主阀按配合形式不同可分为三级同心、二级同心和滑阀式三类．其中滑阀式结构工作压力低，控制压力精度不高；三级同心结构虽成熟，目前应用较广，但与二级同心式比较，不及二级同心式动作灵敏，规格相同，行程相同时，二级同心结构的通油能力远大于三级同心结构；二级同心式控制压力稳定，加工工艺性好，二级同心式应用前景广阔，这里以二级同心结构，讨论其结构尺寸设计方法． 　　VICKERS电磁阀出来的先导油控制主换向阀阀芯的移动，使工作泵的来油进入动臂油缸实现动臂上升。比例先导减压阀的输出压力越大，控制主换向阀阀芯的位移越大，主换向阀通过的流量越大，动臂上升的速度越快。当操作手柄拉*限位置时，手柄中的限位电磁铁通电，手柄在极限位置被吸合。动臂以zui大的速度上升，当升至动臂上位限位开关所限定的位置时，操作手柄限位电磁铁断电，手柄自动恢复到中位，动臂就可保持在所限定的位置。在动臂上升的过程中，若需要动臂在某一位置停留，则需将操作手柄退回中位。 　　VICKERS电磁阀主要用在电气液压伺服系统中作为执行元件（见液压伺服系统）。在伺服系统中，液压执行机构同电气及气动执行机构相比，具有快速性好、单位重量输出功率大、传动平稳、抗干扰能力强等特点。另一方面，在伺服系统中传递信号和校正特性时多用电气元件。因此，现代高性能的伺服系统也都采用电液方式，伺服阀就是这种系统的必需元件。
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