武穴黎翔机电设备有限公司,询价联系人:何女士
询价电话:0713-6542758,手机:18934630908
询价传真:0713-6542758
询价QQ: 736567721,704552157
现货特价型号:R900925687 4WRAE10W1-30-22/G24N9K31/F1V 2台
0811402141 DBETBEX-1X/315G24K31F1M 2台
制多个元件的顺序动作;
(2)用于保压回路;
( 3)防止因自重引起油缸活塞自由下落而做平衡阀用;
(4)用外控顺序阀做卸荷阀,使泵卸荷;
(5)用内控顺序阀作背压阀。顺序动作回路和平衡回路
(1)采用顺序阀的顺序动作回路图4-24所示为机床夹具上装夹工件,实现先定位后夹紧的顺序动作回路。当电磁阀由通电切换到断电状态时,压力油直接进入定位缸下腔。定位缸上升将定位销插入工件定位孔实现定位。定位动作未完成时,油压较低,不足以打开顺序阀进入夹紧缸。定位缸到位后,油路压力才会上升至顺序阀调定压力,使得顺序阀开启,压力油进入夹紧缸下腔,实现夹紧动作。
(2)采用顺序阀的平衡回路为了防止立式液压缸与垂直工作部件由于自重而自行下落,或在下行运动中由于自重而造成超速下降,使运动不平稳,可采用平衡回路。即在立式液压缸下行回油路上设置顺序阀,产生适当的背压阻力来平衡自重。
电磁溢流阀 DBW10A-2-5X/350 6EG24N9K4SO160V
电磁溢流阀 DBW10B-1-50/315-6EG24N9Z5L
电磁溢流阀 DBW10B1-5X/200-6EG24N9K4
电磁溢流阀 DBW10B1-5X/315-6EG24N9K4
电磁溢流阀 DBW10B1-L5X/31.5-6EG24NZ5L
电磁溢流阀 DBW10B-2-5X/315 6EG24N9K4So160
电磁溢流阀 DBW10B2-5X/200-6EG24N9K4
电磁溢流阀 DBW20A1/5X/315/6EG24N9K4
电磁溢流阀 DBW20A2-52/315-6EG24N9K4
电磁溢流阀 DBW20A-2-5X/315 6EG24N9K4V
电磁溢流阀 DBW20A2-5X/315-6EG24N9K4
电磁溢流阀 DBW20A2-5X/315-6EG24N9K4
电磁溢流阀 DBW20B1-50/200-CAG24N9Z5L
电磁溢流阀 DBW20B1-50/315-6EG24N9Z5L
电磁溢流阀 DBW20B1-50B/315-6CG24N9Z5L
电磁溢流阀 DBW20B1-5X/200-6EG24N9K4
电磁溢流阀 DBW20B1-5X/315-6EG24N9K4
电磁溢流阀 DBW20B1-5X/315-6WG24N9K4
电磁溢流阀(常闭) DBW30A-2-5X/315-S6EG24N9K4R12
电磁溢流阀 DBW30A-2-5X/350-6EG24N9K4
电磁溢流阀 DBW30A-2-5X/3506EG24N9K4SO160
电磁溢流阀 DBW30B1-5X/315-6WG24N9K4
减压阀 DR 10-5-5X/200Y
减压阀 DR 20-5-5X/100Y
减压阀 DR 30-5-5X/200Y
减压阀 DR10-5-5X/200YM
减压阀 DR10DP2-43/210YM
减压阀 DR10DP2-4X/150Y
减压阀 DR20-4-4X/200YM
减压阀 DR20-5-5X/200YM
减压阀 DR20-5-5X/315
减压阀 DR20-5-5X/50YM
减压阀 DR6DP2-5X/150YM
所示为采用单向顺序阀(也称平衡阀)的平衡回路。单向顺序阀的调定压力应稍大于由工作部件自重而在液压缸下腔形成的压力。液压缸不工作时,单向顺序阀关闭,工作部件不会自行下落。换向阀左位接入后,液压缸上腔通压力油
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,当下腔背压力大于顺序阀的调定压力时,顺序阀开启。由于液压缸下腔一直存在背压力,运动部件自重得到平衡,活塞可以平稳地下落,不会产生超速现象。活塞下落时,这种回路的功率损失大。活塞停止时,
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RZMO-P3-010/210/I/AM1NS
RZMO-P3-010/210/I/AMINSA
由于单向顺序阀的泄漏而使运动部件缓慢下降,所以它适用于工作部件重量不大,对活塞锁住时的定位要求不高的场合。所示为采用液控单向顺序阀的平衡回路。当换向阀处于中位时,液控顺序阀关闭,使工作部件停止运动并能防止其因自重而下落。当换向阀左位接入后,液压油进入液压缸上腔
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,并进入液控顺序阀的控制口。打开顺序阀,液压缸下腔回油,背压消失,活塞下行。因此,这种回路效率高,安全可靠,但在活塞下落时,由于自重作用使得运动部件下降过快,必然使液压缸上腔的油压降低,使液控顺序阀的开口关小,阻力
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