液压图形符号解析

1、Hydraulic Graphic Symbols to ISO 1219 ISO 1219 液压图形符号1ContinuousWorking 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2Chain dottedEnclosure of two or more functions contained in one unit DoubleMechanical connections(Shaft, lever

2、, 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)3Filledhydraulic Openpneumatic实心三角形液控 空三角形气控4Straight 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中的运动，流

3、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5Diagonal 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6Path 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7Temperature indicator or temperature controlDrive unit温度指示或控制驱

4、动单元8SpringThrottle弹簧节流孔9ConnectionCross-over连接交叉10Flexible hose Air bleed connection,continuous软管 放气连接连续11Air 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12Quick release couplingwith mechanically opening check va

5、lveRotary 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13Rod, linear motion Shaft, rotary motion 杆，线性运动轴，旋转运动14Detent, retains pre-determined position General symbol棘爪，保持在预先位置通用符号15Push buttonPull-out knob 按钮拉出钮 16Push button/pull-out knob Lever按钮/拉钮手柄17Pedal, 1 direction of operation Pedal, bi-d

6、irectional 踏板，一个工作方向 踏板，双方向 18Push rodRoller shaft压杆滚轮19Push rod with stroke limitation Spring带行程限制的压杆弹簧20Roller lever Electrical, 1 coil 摆臂 电气线圈21Electrical, 2 opposed coilsElectrical, 2 opposed adjustable coils电气，双线圈电气，双比例线圈222 parallel acting actuators Actuation by pressure loading/unloading,acti

7、ng direct on actuator 2并联执行器通过压力加载或卸载23Actuation 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 24External control channel Pneumatic / hydraulic actuation 外控气控/液控 252 stage hydraulic actuation 2 stage electrohyd

8、raulic actuation, external pilot oil feed2级液控 2级电液控制，外部油源262 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 272 stage electrohydraulic actuation, pressure

9、 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28Internal return of actuator actual positionHydraulic执行器实际位置内部返回液压29Pneumatic Electric motor气动 电动机30Drive unit, except electric motor Fixed displacement pump, general

10、驱动单元，除了电动机 定量泵31Fixed 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32Fixed displacement motor,bi-directional flowbi-directional rotationFixed displacement pump/motor,1 dire

11、ction 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33Variable 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34Hydraulic compact gear Variable displacement pump with pressure compensator1 d

12、irection 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35Variable 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油口单作用液压缸，外力缩回36Single acting cyli

13、nder, 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37Double acting cylinder with double piston rodSingle rod cylinder双活塞杆双作用液压缸单杆液压缸38Single acting hydraulic cylinder, return stroke by pressure loading, piston area connected to tankDouble acting hydraulic cylinder

14、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39Telescopic hydraulic cylinder,single actingTelescopic hydraulic cylinder,double acting多级液压缸，单作用多级液压缸，双作用40Without pre-load With gas pre-load 无预加载气体预加载41Gas bottle,vertical position only Valve with 2 spool p

15、ositions 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42Valve 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43Valve with 2 spool positions,3 ports, initial po

16、sition 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443/2-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 spool positions,actuation by pressure load

17、ing 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454/3-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464/3-directional val

18、ve(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47Valve with 2 end positions and unlimited cross-over positions Valve with 3 defined positions and unlimited

19、crossover positions2位阀无限制的过渡位置2位阀无限制的过渡位置48Proportional/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494/3-way servo valve(typical example) Check valve, unloaded3位4通伺服阀 (典型例子) 单向阀，无弹簧50Check valve, spring loaded Check valve, pilot operated, without spring

20、 pre-load单向阀，有弹簧单向阀，先导操作，无弹簧51Check valve, pilot operated, with spring pre-load Shuttle valve 单向阀，先导操作，有弹簧梭阀 52Bleed valve Pressure valve, 1 throttling cross section, normally closed释放阀 压力阀，1个节流口，常闭53Pressure valve, 1 throttling cross section, normally openPressure limiting valve, direct operated,in

21、ternal pilot oil feed 压力阀，1个节流孔，常开压力限制阀，直动，内控内泄54Pressure 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55Pressure limiting valve, pilot operated,electrically actuated decompression,inter

22、nal 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562-way pressure reducing valve,pilot operated,internal pilot oil feed,external pilot oil drain 3-way pressure reducing valve,direct operated,internal pilot

23、 oil feed 2通减压阀，先导操作，外泄3通减压阀，直动，内控57Throttle valve, adjustable Shut-off valve 可调节流阀 行程阀58Throttle/check valve2-way flow control valve,pressure compensated 单向节流阀2通流量阀，压力补偿592-way flow control valve,pressure and temperature compensated 3-way flow control valve,pressure and temperature compensated 2通流量

24、阀，压力和温度补偿3通流量阀，压力和稳定补偿60Flow 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61Flow 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62Tank, open (to the atmosphere)Tank, open (to the atmosphere),end of pipe above le