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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),A10V(S)O P
2、ressure/Flow control,Damping orifice,Pressure 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 vie
3、wed for A10VO, series 31),4,3,2,7,9,1,DR,FR,A10 146.1.e/VST6/H 01.AK,Bias piston and spring,Damping orificePressure spring,Damping orifice,Pressure port,Control piston,Counter balance piston and mechanical spring,Flow control(Standard:Dp = 14 bar);,Decompressionorifice,Adjustable orifice, res.Mobile
4、 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),DR,FR,A10 146.2.e/VST6/H 01.AK,Damping orificePressure portCo,A10V(S)O Pressure/Flow control DFR(1)Function and circuit diagram,DR,FR,X,Orifice res. Mobi
5、le valve block,DR - axis,FR - axis,LS - pilot pressure,X,A10 146.3.e/VST6/H 01.AK,A10V(S)O Pressure/Flow control,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 = 1500 rpmp = 15 barStand by = 20 bar,p = 15 bar,High
6、pressure: p HD,Simulated load pressure: p X,A10V(S)O Pressure/Flow control,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 longitudi
7、nal direction: orifice opened Slit in cross direction : orifice closed, SO 74),FR - axis,DR - axis,DR,FR,X,A10V(S)O Pressure/Flow control,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 direct
8、ion : orifice closed, (SO 74),A10V(S)O Pressure/Flow control,A10V(S)O Pressure/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 ha
9、ve to be shortened according to the original lenght of the plug(reach of a screw 7 mm).,A10 146.7.e/VST6/H 01.AK,A10V(S)O Pressure/Flow control,A10V(S)O Pressure/Flow control DFR(1)Adjustment for pressure- res. flow control,Valve axis:Flow control,Adjustment of flow control: Stand - by“ pressuremeas
10、urementorDifferential pressuremeasurement with swivel angle !,Adjustment of pressure control,Valve axis:Pressure control,A10V(S)O Pressure/Flow control,Measuring - point 1: High pressure(measurable at plug of DR valve axis),A10V(S)O Pressure/Flow control DFR(1)Adjustment of pressure control DR,DR,FR
11、,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,A10 146.9.e/VST6/H 01.AK,Measuring - point 1: High pres,Measuring - point 1: zero stroke pressure(measurable at pl
12、ug 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 tank, a zero stroke pressure of p = 16 1 ba
13、r stand by“results.,- 16 bar + 16 bar,Measuring - point 1: zero stro,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/Flo
14、w control DFR(1)Adjustment of flow control FR,DR,FR,X,- 16 bar + 16 bar,Measuring - point 1: load pres,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 dec
15、ompression orifice !(DFR1: closed, without drilling),A10 146.12.e/VST6/H 01.AK,A10V(S)O Pressure/Flow control,A10V(S)O Pressure/Flow control DFR(1)Usage DFR(1) for series 31 and 52 !,A10 - series 31:DFR(1) - without return line orifice !,A10 - series 52:DFR(1) - with return line orifice (Standard: 2
16、,2 mm !),Special design (Stabilization):SO 116: Return line orifice 1,3 mmSO 229: Return line orifice 1,5 mm SO 231: Return line orifice 2,2 mm SO 277: Return line orifice 1,0 mm SO 381: Return line orifice 0,8 mmSO 617: Return line orifice 0,6 mm,X,A10V(S)O Pressure/Flow control,A10V(S)O Pressure/F
17、low control DFR(1)Mounting of DFR(1) control (series 31),Mounting of DFR(1) - control (A10V(S)O series 31) depends ondirection of rotation (Direction of rotation by view on drive shaft) !,A10V(S)O Pressure/Flow control,A10V(S)O Pressure/Flow control DFR(1)Different designs,DFR(1) for A10V(S)OSize 18
18、 - 100Standard design !,DFR(1) for A10V(S)OSize 140Design in sandwich - platedesign !,A10 146.15.e/VST6/H 01.AK,A10V(S)O Pressure/Flow control,Pressure control DRStandard setting:A10V(S)O DFLR/31: 280 bar,Flow control FR(Dp = 10 - 22 bar)Standard setting: Dp = 14 bar,X - Port(With integrated orifice
19、 (in adap-ter): 0,8 mm),Pressure port B,Case drain port L,Suction port S,(viewed A10VO, series 31, clockwise),Power-control LR,Ports,A10V(S)O pressure, flow and power control DFLR,Pressure control DRFlow contro,A10V(S)O pressure, flow and power control DFLR,Circuit diagram,A10V(S)O pressure, flow an
20、d po,A10V(S)O pressure, flow and power control DFLR,Function and circuit diagram,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Function and circuit diagram,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Function power control,Adjustable
21、spring package of power control valve,Eccenter cradle position (i.e. displaced volume) will be restored by the eccenter prestress of the spring package will be changed by the eccenter Thereby the opening pressure of the power control valve has been changed small swivel angle = high pressure large sw
22、ivel angle = low pressure,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Integrated orifice and damping orifice,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Measurement of high pressure,Measurement of high pressure:At this particular sp
23、ot, 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 screw 7 mm).,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Adjustm
24、ent of DR, FR and LR - control,Valve axis:flow control,Adjustment ofpressure controlAdjustment offlow control: stand-by“ pres-sure measurementordifferential pressuremeasurement with semi swivel angle !,Adjustment of power control,Valve axis:pressure control,A10V(S)O pressure, flow and po,A10V(S)O pr
25、essure, flow and power control DFLR,Adjustment of power control,Start of control !,Start of control is adjustable bythe first outer spring, prestressed at fully displaced volume (100% Vg),End of control is adjustable by the second inner spring,clearance at fully displaced volume (100% Vg),torque,0,4
26、0,60,80,20,50,100,150,200,250,280,Q l/min ,pressure pHD bar,drive torque Nm,0,0,4,0,6,1,0,0,2,Vg / Vgmax,0,8,Point of action of thesecond inner spring,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Hints for assembling/disassembling of the LR valve,1. : loosening the p
27、lug,Eccenter pin,2. : by pushing the spring, the eccenter will be relieved,Advantage: Adjustment of power control valve is unchanged !,Bushing,3. : assembling i.e. disassembling of the power control valve,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Usage of DFLR - S
28、O128 with LUDV mobile blocks,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Usage of DFLR - SO128 with LUDV mobile blocks,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Pilot pressure port X forLS - mobile valve block,FR 1,FR 2,LR,High pr
29、essure support bydrilled valve spool(Q = f (d, Dp, u) ),Pilot oil consumptionDFLR-SO128 valve: approx. 3 - 5 l,DFLR-SO128, high pressure support and X-port,FR 1,FR 2,LR,A10V(S)O pressure, flow and po,A10V(S)O pressure, flow and power control DFLR,Pilot pressure port X,DFLR - SO 128 pilot pressure port X,A10V(S)O pressure, flow and po,
