液压图形符号

1、 1Hydraulic Graphic Symbols to ISO 1219 ISO 1219 液压图形符号 2ContinuousWorking linepower lineDashedPilot control lineExternal/internal drain lineCross-over position连续线工作油路动力油路虚线先导控制油路外部/内部泄油油路过渡位置 3Chain dottedEnclosure of two or more functions contained in one unit DoubleMechanical connections(Shaft, l

2、ever, piston rod)点划线在一个单元内两个或更多功能的围框 双线机械连接(轴，杠杆，活塞杆) 4Filledhydraulic Openpneumatic实心三角形液控 空三角形气控 5Straight or angledMovement in a straight line, flow path anddirection through a valveDirection of thermal flowCurvedDirection of rotation,Gives the direction of rotation viewed from shaft end直线或斜线直线油路

3、中的运动，流动路径和通过阀的方向热流方向曲线旋转方向从轴端看旋转方向 6Diagonal arrowFacility for adjustment of pumps, motors, springs, solenoidsElectrical对角线泵、马达、弹簧、电磁铁的调节装置电气 7Path or connection closedLinear electrical actuators acting in opposite directions 路径或连接中断双方向作用线性电气执行器 8Temperature indicator or temperature controlDrive uni

4、t温度指示或控制驱动单元 9SpringThrottle弹簧节流孔 10ConnectionCross-over连接交叉 11Flexible hose Air bleed connection,continuous软管 放气连接连续 12Air bleed connectiontime limitedopen / closed Quick release couplingwithout mechanically opening check valve 放气连接时间限制开 / 闭快换接头没有机械打开的单向阀 13Quick release couplingwith mechanically o

5、pening check valveRotary coupling with 1 connection快换接头有机械打开的单向阀回转接头带一个油路 14Rod, linear motion Shaft, rotary motion 杆，线性运动轴，旋转运动 15Detent, retains pre-determined position General symbol棘爪，保持在预先位置通用符号 16Push buttonPull-out knob 按钮拉出钮 17Push button/pull-out knob Lever按钮/拉钮手柄 18Pedal, 1 direction of op

6、eration Pedal, bi-directional 踏板，一个工作方向 踏板，双方向 19Push rodRoller shaft压杆滚轮 20Push rod with stroke limitation Spring带行程限制的压杆弹簧 21Roller lever Electrical, 1 coil 摆臂 电气线圈 22Electrical, 2 opposed coilsElectrical, 2 opposed adjustable coils电气，双线圈电气，双比例线圈 232 parallel acting actuators Actuation by pressure

7、 loading/unloading,acting direct on actuator 2并联执行器通过压力加载或卸载 24Actuation by pressure loading/unloading,by different sized control areas situated opposite each other Internal control channel 双向液控，作用面积不同 内部控制通路 25External control channel Pneumatic / hydraulic actuation 外控气控/液控 262 stage hydraulic actu

8、ation 2 stage electrohydraulic actuation, external pilot oil feed2级液控 2级电液控制，外部油源 272 stage pneumatic-hydraulic actuation, external pilot oil drain 2 stage electrohydraulic actuation, spring centered mid-position, external pilot oil feed and drain2级气液控制，外部泄油 2级电液控制，弹簧回中，外部油源和泄油 282 stage electrohydr

9、aulic actuation, pressure centered mid-position, external pilot oil feed and drain External return of actuator actual position2 级电液控制，压力回中，外部油源和泄油执行器实际位置外部返回 29Internal return of actuator actual positionHydraulic执行器实际位置内部返回液压 30Pneumatic Electric motor气动 电动机 31Drive unit, except electric motor Fixed

10、 displacement pump, general 驱动单元，除了电动机 定量泵 32Fixed displacement pump1 direction of flow1 direction of rotation Variable displacement pumpbi-directional flow1 direction of rotationleakage port 定量泵单方向流动单方向旋转变量泵，双向流动，单方向旋转，带泄油口 33Fixed displacement motor,bi-directional flowbi-directional rotationFixed

11、displacement pump/motor,1 direction of flow1 direction of rotation 定量马达双向流动双向旋转定量泵/马达单流动方向单旋转方向 34Variable displacement pump/motormanual adjustment,bi-directional flowbi-directional rotationleakage port Hydraulic rotary motor 变量泵/马达手动变量双向流动双向旋转泄油口摆动马达 35Hydraulic compact gear Variable displacement p

12、ump with pressure compensator1 direction of flow1 direction of rotationleakage port液压紧凑齿轮泵 恒压变量泵单方向流动单方向转动泄油口 36Variable displacement pump/motor with pressure compensatorbi-directional flowbi-directional rotationleakage port Single acting cylinder, return stroke by undefined force恒压变量泵/马达单方向流动单方向转动泄

13、油口单作用液压缸，外力缩回 37Single acting cylinder, spring returnDouble acting cylinder with single piston rod 单作用液压缸，弹簧复位单活塞杆双作用液压缸 38Double acting cylinder with double piston rodSingle rod cylinder双活塞杆双作用液压缸单杆液压缸 39Single acting hydraulic cylinder, return stroke by pressure loading, piston area connected to t

14、ankDouble acting hydraulic cylinder single piston rod, adjustable cushioning at both ends 单作用液压缸，压力释放伸出，无杆腔接油箱双作用液压缸，单活塞杆，双端可调缓冲 40Telescopic hydraulic cylinder,single actingTelescopic hydraulic cylinder,double acting多级液压缸，单作用多级液压缸，双作用 41Without pre-load With gas pre-load 无预加载气体预加载 42Gas bottle,vert

15、ical position only Valve with 2 spool positions and 1 cross-over position 气瓶，垂直位置带有两个阀位和一个过渡位的阀 43Valve with 2 spool positions,2 ports,initial position closed, bi-directional flow Valve with 2 spool positions,2 ports, initial position open,bi-directional flow 2位2通阀，初始位置导通，双向2位2通阀，初始位置开路，双向 44Valve w

16、ith 2 spool positions,3 ports, initial position open,bi-directional flow 2/2-directional valve,2 ports,2 spool positions 2位3通阀，初始位置开路，双向2位2通阀 453/2-directional valve,3 ports,2 spool positions,1 cross-over position,solenoid actuation,initial position defined by spring 5/2-directional valve,5 ports,2

17、spool positions,actuation by pressure loading in both directions 2位3通方向阀1个过渡位置电磁铁驱动初始位置弹簧决定2位5通方向阀1个过渡位置液控换向 464/3-directional valve (detailed symbol),electrohydraulic actuation,4 ports,3 spool positions,spring-centered mid-position,emergency actuation,external pilot oil drainSimplified symbol 简化符号

18、3位4通方向阀弹簧回中紧急操作外部油源和泄油 474/3-directional valve(detailed symbol),electrohydraulic actuation,4 ports,3 spool positions,Spring-centered mid-position,emergency actuation,external pilot oil drainSimplified symbol 简化符号 3位4通方向阀弹簧回中紧急操作外部油源和泄油 48Valve with 2 end positions and unlimited cross-over positions

19、Valve with 3 defined positions and unlimited crossover positions2位阀无限制的过渡位置2位阀无限制的过渡位置 49Proportional/servo valve,negative overlap Proportional/servo valve,positive overlap比例阀/伺服阀负遮盖比例阀/伺服阀正遮盖 504/3-way servo valve(typical example) Check valve, unloaded3位4通伺服阀 (典型例子) 单向阀，无弹簧 51Check valve, spring lo

20、aded Check valve, pilot operated, without spring pre-load单向阀，有弹簧单向阀，先导操作，无弹簧 52Check valve, pilot operated, with spring pre-load Shuttle valve 单向阀，先导操作，有弹簧梭阀 53Bleed valve Pressure valve, 1 throttling cross section, normally closed释放阀 压力阀，1个节流口，常闭 54Pressure valve, 1 throttling cross section, normal

21、ly openPressure limiting valve, direct operated,internal pilot oil feed 压力阀，1个节流孔，常开压力限制阀，直动，内控内泄 55Pressure limiting valve, direct operated,external pilot oil drain Pressure limiting valve, pilot operated,internal pilot oil feed and drain 压力限制阀，直动，内控外泄压力限制阀，先导操作，内控内泄 56Pressure limiting valve, pilo

22、t operated,electrically actuated decompression,internal pilot oil feed,external pilot oil drain2-way pressure reducing valve,direct operated,internal pilot oil feed 压力限制阀，先导操作，电控卸荷，内控内泄2通减压阀，直动，内控 572-way pressure reducing valve,pilot operated,internal pilot oil feed,external pilot oil drain 3-way p

23、ressure reducing valve,direct operated,internal pilot oil feed 2通减压阀，先导操作，外泄3通减压阀，直动，内控 58Throttle valve, adjustable Shut-off valve 可调节流阀 行程阀 59Throttle/check valve2-way flow control valve,pressure compensated 单向节流阀2通流量阀，压力补偿 602-way flow control valve,pressure and temperature compensated 3-way flow

24、 control valve,pressure and temperature compensated 2通流量阀，压力和温度补偿3通流量阀，压力和稳定补偿 61Flow divider 2-way cartridge valves(logic elements),directional valve, free from oil leakage,different effective areas 分流阀 2通插装阀(逻辑单元),直动，泄油自由，不同作用面积 62Flow control valve Directional valve,free from oil leakage in one direction,same effective areas 流量控制阀 方向阀，一个方向泄油资源，相同作用面积 63Tank, open (to the atmosphere)Tank, open (to the atmosphere),end of pipe above level