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。
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。当操作手柄拉至极限位置时,手柄中的限位电磁铁通电,手柄在极限位置被吸合。动臂以Z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威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵
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VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵
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VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵 VICKERS威格士 VICKER叶片泵 VICKERS电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵
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VICKERS DG4V-3-2A-A-D24-6Y
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VICKERS WS1562B
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VICKERS DG4V 36C MU H760,24VDC H507848
VICKERS MFJ6-18YC 220VAC 50VA
VICKERS PA&B-350BAR DG4V 32A
VICKERS EEA-PAM-568-A-32
VICKERS DL4V-3X-2A-M-U-D5-60
VICKERS EEA-PAM-571-A-14
VICKERS 361741
VICKERS LHATTE60-10
VICKERS PVB20RS20C11
VICKERS PVH57QIC RSF IS10C25
VICKERS DG4S4-016CB60
VICKERS DGMX2-5PP-FW-S-30
VICKERS EVD2-2988
VICKERS PVH74Q1C-13S-10HC-30
VICKERS PVQ40-B2R-SE3S10CG12
VICKERS US-40
VICKERS DG4V-3-8C-M-C-C6-60
VICKERS DG4V-5-2N-M-U-C6-60
VICKERS EEA-PAM-523-A-32
VICKERS EEA-PAM-533-C-32
VICKERS EEA-PAM-535-A-32
VICKERS CG5V-6GM-DMU-LH-20
VICKERS CG5V-8GW-DMU-H5-20
VICKERS PVXS-180-M-R-DF-0000-000
VICKERS CBV1-10-C-0-A-30/603
VICKERS DGMPC-5-ABK-30
VICKERS DGMPC-5-ABK-BAK-30
VICKERS 24VDC30W
VICKERS EHA-PSU-704-A3.5-20 24VDC
VICKERS KDG5V733C170NTMUH110
VICKERS DG4V-3-2A-M-U-C-60
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VICKERS DGMFN-3-X-A2W-41 进口节流
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VICKERS DGMFN-5-X-A2W-B2W-30
VICKERS RCG-06-B-1-23UG
VICKERS XG2V-6-FW-B-10
VICKERS 4WMM10J3X
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VICKERS DG4V-3S-2A-M-U-H5-6
VICKERS DG5V6GWOMUH711
VICKERS DGMC3PTCHB41
VICKERS DGMDC3PTCHB41
VICKERS DGMDC3YBK41
VICKERS KAFDG5V7-2C200N-X
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VICKERS KBDG5V-8-2C330N-T-
VICKERS PN507848 24VDC
VICKERS KCG-6-W-250-Z-M-U-H1-10
VICKERS CVU 40 EC B29 250 30
VICKERS SV9-8N E M O 120AG
VICKERS DG5V-72CM-U-H5-40
VICKERS DG4M4-34C-20-JA
VICKERS DG4V-3-2AL-MU-H7-60
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VICKERS DG4V-3-2C-M-U-H7-60
VICKERS DG4V3S.2A.H.VM.T.TJL.H5.60kg
VICKERS DG4V3S.2AL.H.VM.FTJL.H5.60kg
VICKERS DG4V3S.7C.H.VM.FTJL.H5.60kg
VICKERS DG4V3S.DC.H.VM.FTJL.H5.60kg
VICKERS威格士 VICKER叶片泵 VICKERS威格士电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵VICKERS威格士 VICKER叶片泵 VICKERS威格士电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵VICKERS威格士 VICKER叶片泵 VICKERS威格士电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵VICKERS威格士 VICKER叶片泵 VICKERS威格士电磁阀 VICKERS单向阀 VICKERS威格士PVH变量柱塞泵