REXROTH伺服阀*,力士乐伺服阀原理: 典型的伺服阀由永磁力矩马达、喷嘴、档板、阀芯、阀套和控制腔组成(见图)。当输入线圈通入电流时,档板向右移动,使右边喷嘴的节流作用加强,流量减少,右侧背压上升;同时使左边喷嘴节流作用减小,流量增加,左侧背压下降。阀芯两端的作用力失去平衡,阀芯遂向左移动。高压油从S流向C2,送到负载。负载回油通过C1流过回油口,进入油箱。阀芯的位移量与力矩马达的输入电流成正比,作用在阀芯上的液压力与弹簧力相平衡,因此在平衡状态下力矩马达的差动电流与阀芯的位移成正比。如果输入的电流反向,则流量也反向。表中是伺服阀的分类。 伺服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。 伺服阀结构比较复杂,造价高,对油的质量和清洁度要求高。新型的伺服阀正试图克服这些缺点,例如利用电致伸缩元件的伺服阀,使结构大为简化。另一个方向是研制特殊的工作油(如电气粘性油)。这种工作油能在电磁的作用下改变粘性系数。利用这一性质就可通过电信号直接控制油流。 REXROTH伺服阀*,力士乐伺服阀应用领域: 电液伺服阀广泛地应用于电液位置,速度,加速度,力伺服系统,以及伺服振动发生器中.它具有体积小,结构紧凑,功率放大系数高,控制精度高,直线性好,死区小,灵敏度高,动态性能好以及响应速度快等优点. ,力士乐伺服阀常见型号: Bosch DBETBX-1X/80G24-37Z4M2 0811402007 Bosch DBETBX-1X/180G24-37Z4M 0811402003 Bosch DBETBX-1X/250G24-37Z4M2 0811402001 Bosch DBETBX-1X/315G24-37Z4M 0811402004 Bosch DBETBEX-1X/80G24k31A1M 0811402072 Bosch DBETBEX-1X/180G24k31A1M 0811402071 Bosch DBETBEX-1X/250G24k31A1M 0811402073 Bosch DBETBEX-1X/315G24k31A1M 0811402070 Bosch DBETBEX-1X/80G24k31F1M 0811402140 Bosch DBETBEX-1X/180G24k31F1M 0811402075 Bosch DBETBEX-1X/315G24k31F1M 0811402141 Bosch DBETFX-1X/80G24-27NZ4M 0811402023 Bosch DBETFX-1X/180G24-27NZ4M 0811402022 Bosch DBETFX-1X/250G24-27NZ4M 0811402021 Bosch DBETFX-1X/315G24-27NZ4M 0811402020 Bosch DBETX-1X/50G24-8NZ4M 0811402036 Bosch DBETX-1X/80G24-8NZ4M 0811402018 Bosch DBETX-1X/180G24-8NZ4M 0811402017 Bosch DBETX-1X/250G24-8NZ4M 0811402019 Bosch DBETX-1X/315G24-8NZ4M 0811408016 Bosch DBETX-1X/50G24-25NZ4M 0811402034 Bosch DBETX-1X/80G24-25NZ4M 0811402030 Bosch DBETX-1X/180G24-25NZ4M 0811402031 Bosch DBETX-1X/250G24-25NZ4M 0811402035 Bosch DBETX-1X/315G24-25NZ4M 0811402032 Bosch DBEP 6 A06-1X/45AG24K4M R900955079 Bosch DBEP 6 B06-1X/45AG24K4M R900955080 Bosch DBEP 6 C06-1X/45AG24K4M R900955082 Bosch DBET-6X/50G24K4V R901000842 Bosch DBET-6X/100G24K4V R901000845 Bosch DBET-6X/200G24K4V R901000846 Bosch DBET-6X/315G24K4V R901000847 Bosch DBET-6X/350G24K4V R901000848 Bosch DBETE-6X/50G24K31A1V R901029966 Bosch DBETE-6X/100G24K31A1V R901029967 Bosch DBETE-6X/200G24K31A1V R901029968 Bosch DBETE-6X/315G24K31A1V R901029969 Bosch DBETE-6X/350G24K31A1V R901029970 Bosch DBETR-1X/30G24K4M R900954438 Bosch DBETR-1X/80G24K4M R900334966 Bosch DBETR-1X/180G24K4M R900491698 Bosch DBETR-1X/230G24K4M R900370146 Bosch DBETR-1X/315G24K4M R900485944 Bosch DBETR-1X/350G24K4M R900352424 Bosch KBPSC8AA/HCG24K4V R901049804 Bosch KBPSF8AA/HCG24K4V R901049817 Bosch KBPSH8AA/HCG24K4V R901049868 Bosch KBPSL8AA/HCG24K4V R901027408 Bosch KBPSN8AA/HCG24K4V R901049877 Bosch KBPSP8AA/HCG24K4V R901047007 Bosch KBPSR8AA/HCG24K4V R901049860 Bosch KBPST8AA/HCG24K4V R901049865 Bosch KBPSC8BA/HCG24K4V R901018586 Bosch KBPSF8BA/HCG24K4V R901018587 Bosch KBPSH8BA/HCG24K4V R901049691 Bosch KBPSL8BA/HCG24K4V R901018588 Bosch KBPSN8BA/HCG24K4V R901018592 Bosch KBPSP8BA/HCG24K4V R901018593 Bosch KBPSR8BA/HCG24K4V R901018597 Bosch KBPST8BA/HCG24K4V R901018598 Bosch DBEBE6X-1X/80G24K31A1M 0811402078 Bosch DBEBE6X-1X/180G24K31A1M 0811402077 Bosch DBEBE6X-1X/315G24K31A1M 0811402076 Bosch DBEBE6X-1X/80G24K31F1M 0811402084 Bosch DBEBE6X-1X/180G24K31F1M 0811402079 Bosch DBE10Z-1X/180XYG24-8NZ4M 0811402117 Bosch DBE10Z-1X/315XYG24-8NZ4M 0811402118 Bosch DBEB10Z-1X/180XYG24-37Z4M 0811402100 Bosch DBEB10Z-1X/315XYG24-37Z4M 0811402101 Bosch DBEBE10Z-1X/180XYG24K31A1M 0811402115 Bosch DBEBE10Z-1X/315XYG24K31A1M 0811402116 Bosch DBEME10-5X/50YG24K31M R900908585 R900594277,4WE10G3X/CG24N9K4 R900597986,4WE10H3X/CG24N9K4 R900598662,4WE10HA3X/CG24N9K4 R900589988,4WE10J3X/CG24N9K4 R900599646,4WE10L3X/CG24N9K4 R900591325,4WE10Q3X/CG24N9K4 R900592655,4WE10U3X/CG24N9K4 R900595531,4WE10Y3X/CG24N9K4 R900561272,4WE6C6X/EG24N9K4 R900561274,4WE6D6X/EG24N9K4 R900561278,4WE6E6X/EG24N9K4 R900561284,4WE6G6X/EG24N9K4 R900561286,4WE6H6X/EG24N9K4 R900561288,4WE6J6X/EG24N9K4 R900901751,4WE6L6X/EG24N9K4 R900908825,4WE6M6X/EG24N9K4/V R900572785,4WE6U6X/EG24N9K4 R900561278,4WE6Y6X/EG24N9K4
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