力士乐泵资料课件.ppt
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1、A10V(S)O Pressure/Flow control DFR(1) PortsPressure control DRStandard setting:A10VODFR/31: 280 barA10VODFR/52: 250 barFlow control FR(D(Dp = 10 - 22 bar)Standard setting: D Dp = 14 bar X - Pilot pressure portPressure port BCase drain port LSuction port S(viewed A10VO, BR 31, clockwise)Damping orifi
2、cePressure springControl piston (8)Flow control(Standard:D Dp = 14 bar);Spring force (5)DecompressionorificeAdjustable orifice, (6) res.Mobile valve block (not included in supply)X - portA10V(S)O Pressure/Flow control DFR(1) Circuit diagram(Circuit diagram viewed for A10VO, series 31)432791DRFRA10 1
3、46.1.e/VST6/H 01.AKBias piston and springDamping orificePressure portControl pistonCounter balance piston and mechanical springFlow control(Standard:D Dp = 14 bar);DecompressionorificeAdjustable orifice, res.Mobile valve block (not included in supply)X - portA10V(S)O Pressure/Flow control DFR(1) Cir
4、cuit diagram(Circuit diagram viewed for A10VO, series 31)DRFRA10V(S)O Pressure/Flow control DFR(1)Function and circuit diagramDRFRXOrifice res. Mobile valve blockDR - axisFR - axisLS - pilot pressureXA10V(S)O Pressure/Flow control DFR(1) D Dp - control characteristic f (x) = (px, Vg)DFR1XpxpHDA10 VO
5、 74 DFR(1)Mode of experimental procedure:n = 1500 rpmD Dp = 15 barStand by = 20 barD Dp = 15 barWerk Horb0255075100125Frdermenge in l/min0102030405060708090100110120130140150160170180190200210220Betriebsdruck bei pX = 50bar0102030405060708090100110120130140150160170180190200210220Betriebsdruck bei p
6、X = 100bar0102030405060708090100110120130140150160170180190200210220Betriebsdruck bei pX = 150bar0102030405060708090100110120130140150160170180190200210220Betriebsdruck bei pX = 200barTEEV/H_BlumA 10 VO 74Delta p - VerhaltenGrundeinstellung Standby = 20barDatensatz : deltap_VerhaltenHigh pressure: p
7、 HDSimulated load pressure: p XA10V(S)O Pressure/Flow control DFR(1)Decompression orifice and damping orificeDFR with decompression orifice:(DFR: Standard: 0,35 mm)(DFR1: closed, without drilling)Damping orifice DR - FR(Standard: 0,6 mm,Slit in longitudinal direction: orifice opened Slit in cross di
8、rection : orifice closed, SO 74)FR - axisDR - axisDRFRXA10V(S)O Pressure/Flow control DFR(1)Damping orificeDamping orifice DR - FR(Standard: 0,6 mm, Slit in longitudinal direction: orifice opened Slit in cross direction : orifice closed, (SO 74)pressure increase of the valve (pHD = 200 bar)050100150
9、2002500,0000,0500,1000,1500,2000,2500,3000,3500,4000,4500,500 x mmadjusting path of the pistonp bar0,050,0100,0150,0200,0250,0closedopenA10V(S)O Pressure/Flow control DFR(1)Measurement of high pressureMeasurement high pressure:At this particular spot, the existing plugs (M8 x 1) canbe replaced by mi
10、ni measure-ment connectionsAttention:The mini - measurement connection have to be shortened according to the original lenght of the plug(reach of a screw 7 mm).A10V(S)O Pressure/Flow control DFR(1)Adjustment for pressure- res. flow controlValve axis:Flow controlAdjustment of flow control: Stand - by
11、“ pressuremeasurementorDifferential pressuremeasurement with swivel angle !Adjustment of pressure controlValve axis:Pressure controlMeasuring - point 1: High pressure(measurable at plug of DR valve axis)A10V(S)O Pressure/Flow control DFR(1)Adjustment of pressure control DRDRFRProcedure: FR - flow co
12、ntrol blocked ! High pressure line closed ! Adjusting of DR pressure control with setting value !XAdjustment DR : each rotation app. 50 bar ! - 50 bar + 50 barA10 146.9.e/VST6/H 01.AKMeasuring - point 1: zero stroke pressure(measurable at plug of valve axis)1. Stand by“ pressure measurement: A10V(S)
13、O Pressure/Flow control DFR(1)Adjustment of flow control FRDRFRProcedure: X - port unloaded to tank ! close high pressure port !XStandard adjustment FR D Dp = 14 bar (When port X is unloaded to tank, a zero stroke pressure of p = 16 1 bar stand by“results. - 16 bar + 16 barMeasuring - point 1: load
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