《力士乐泵资料》PPT课件.ppt
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1、A10V(S)O Pressure/Flow control DFR(1)Ports,Pressure control DRStandard setting:A10VODFR/31:280 barA10VODFR/52:250 bar,Flow control FR(Dp=10-22 bar)Standard setting:Dp=14 bar,X-Pilot pressure port,Pressure port B,Case drain port L,Suction port S,(viewed A10VO,BR 31,clockwise),Damping orifice,Pressure
2、 spring,Control piston(8),Flow control(Standard:Dp=14 bar);Spring force(5),Decompressionorifice,Adjustable orifice,(6)res.Mobile valve block(not included in supply),X-port,A10V(S)O Pressure/Flow control DFR(1)Circuit diagram,(Circuit diagram viewed for A10VO,series 31),4,3,2,7,9,1,DR,FR,Bias piston
3、and spring,Damping orifice,Pressure port,Control piston,Counter balance piston and mechanical spring,Flow control(Standard:Dp=14 bar);,Decompressionorifice,Adjustable orifice,res.Mobile valve block(not included in supply),X-port,A10V(S)O Pressure/Flow control DFR(1)Circuit diagram,(Circuit diagram v
4、iewed for A10VO,series 31),DR,FR,A10V(S)O Pressure/Flow control DFR(1)Function and circuit diagram,DR,FR,X,Orifice res.Mobile valve block,DR-axis,FR-axis,LS-pilot pressure,X,A10V(S)O Pressure/Flow control DFR(1)p-control characteristic f(x)=(px,Vg),A10 VO 74 DFR(1),Mode of experimental procedure:,n=
5、1500 rpmp=15 barStand by=20 bar,p=15 bar,High pressure:p HD,Simulated load pressure:p X,A10V(S)O Pressure/Flow control DFR(1)Decompression orifice and damping orifice,DFR with decompression orifice:(DFR:Standard:0,35 mm)(DFR1:closed,without drilling),Damping orifice DR-FR(Standard:0,6 mm,Slit in lon
6、gitudinal direction:orifice opened Slit in cross direction:orifice closed,SO 74),FR-axis,DR-axis,DR,FR,X,A10V(S)O Pressure/Flow control DFR(1)Damping orifice,Damping orifice DR-FR(Standard:0,6 mm,Slit in longitudinal direction:orifice opened Slit in cross direction:orifice closed,(SO 74),A10V(S)O Pr
7、essure/Flow control DFR(1)Measurement of high pressure,Measurement high pressure:At this particular spot,the existing plugs(M8 x 1)canbe replaced by mini measure-ment connections,Attention:The mini-measurement connection have to be shortened according to the original lenght of the plug(reach of a sc
8、rew 7 mm).,A10V(S)O Pressure/Flow control DFR(1)Adjustment for pressure-res.flow control,Valve axis:Flow control,Adjustment of flow control:Stand-by“pressuremeasurementorDifferential pressuremeasurement with swivel angle!,Adjustment of pressure control,Valve axis:Pressure control,Measuring-point 1:H
9、igh pressure(measurable at plug of DR valve axis),A10V(S)O Pressure/Flow control DFR(1)Adjustment of pressure control DR,DR,FR,Procedure:FR-flow control blocked!High pressure line closed!Adjusting of DR pressure control with setting value!,X,Adjustment DR:each rotation app.50 bar!,-50 bar+50 bar,Mea
10、suring-point 1:zero stroke pressure(measurable at plug of valve axis),1.Stand by“pressure measurement:,A10V(S)O Pressure/Flow control DFR(1)Adjustment of flow control FR,DR,FR,Procedure:X-port unloaded to tank!close high pressure port!,X,Standard adjustment FR Dp=14 bar(When port X is unloaded to ta
11、nk,a zero stroke pressure of p=16 1 bar stand by“results.,-16 bar+16 bar,Measuring-point 1:load pressure corresponding to pressure of port X!(LS-signal),Measuring-point 2:High pressure(measureable at plug of valve axis),2.Possibility:Differential pressure measurement:,A10V(S)O Pressure/Flow control
12、DFR(1)Adjustment of flow control FR,DR,FR,X,-16 bar+16 bar,A10V(S)O Pressure/Flow control DFR(1)Differences between DFR and DFR1,DFR-designWith decompression orifice!(DFR:Standard:0,35 mm glued in place,fastened with Loctide),DFR1-designWithout decompression orifice!(DFR1:closed,without drilling),A1
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