Tandem pumps TECHNICAL CATALOGUE · 400 400 400 400 - peak ∆P peak 450 450 450 450 Charge pump...

Tandem pumps

TECHNICAL CATALOGUE

PSM-HYDRAULICS

20 11

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Contents

General information. ........................................................................................................................................................................................................ 3Technical characteristics. .............................................................................................................................................................................................. 4Calculation of size ............................................................................................................................................................................................................. 4Working fluid requirements. ....................................................................................................................................................................................... 5Allowed radial and axial loads on shaft. .............................................................................................................................................................. 5Tandem pump designation ........................................................................................................................................................................................ 5P - Servocontrol. ................................................................................................................................................................................................................. 6E3, E4 - Electrical Proportional Control. ................................................................................................................................................................ 7Е1, Е2 - Electrical 3-Position Control. ..................................................................................................................................................................... 8НР - Hydraulic Proportional Control. ..................................................................................................................................................................... 9HD - Hydraulic Proportional Control without FeedBack. ........................................................................................................................10Ports. ........................................................................................................................................................................................................................................11Overall dimensions. 90/71 ccm/rev + 90/71 ccm/rev ..............................................................................................................................12Overall dimensions. 125/110 ccm/rev + 90/71 ccm/rev .......................................................................................................................13Overall dimensions. 125/110 ccm/rev + 125/110 ccm/rev ...................................................................................................................14Mounting flanges. ...........................................................................................................................................................................................................15Auxiliary mounting pads.............................................................................................................................................................................................16Shaft ends.............................................................................................................................................................................................................................18

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General information.

Tandem pumps consist of two swash-plate pumps of 416 series: - 90 (or 71) + 90 (or 71) ccm/rev - 124 (or 110) + 90 (or 71) ccm/rev - 125 (or 110) + 125 (or 110) ccm/rev

Any combination of working displacements is possible - 71, 90, 110, 125 ccm/rev

Coupled pumps are intended for operation in close loop hydraulic systems.

Intended for application in hydraulic schemes of: - rollers, vibratory compactors; - track-type vehicles: earthmovers, rovers, paddy harvesters; - wheeled vehicles: front loaders.

Working pressure of each pump: - max - 40 bar - peak - 45 barConnections:mounting flanges - SAE D (Ø152,4mm) 4+2 bolts - SAE D (Ø152,4mm) 4 bolts - SAE C (Ø127mm) 4+2 bolts - only for tandem pumps 90 (71) + 90 (71)

high pressure ports - SAE 1” 3000psi - SAE 1” 6000psi - SAE 1 1/4” 6000psi

case drain ports - ISO 6149-1 - ISO 11926-1

shaft ends - splined ANSI B92.1a - splined DIN 5480 - tapered

Each of the pumps can be equipped with any of the possible mechanisms of control: - servo control - hydraulic control - hydraulic control without feedback - electro control (12VDC or 24VDC) - 3-position electro control (12VDC or 24VDC)

Coupled pumps can be additionally equipped with: - additional pumps or the option for their mounting.

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Technical characteristics.

Size 416.0.71 416.0.90 416.0.110 416.0.125

Displacement Vg, ccm/rev

- min Vg min

0 0 0 0

- max Vg max

71 90 110 125

Shaft speed n, rpm

- min nmin

500 500 500 500

- nom nnom

2000 2000 2000 2000

- max nmax

3050 3050 3000 3000

- peak npeak

, at charge pump inlet pressure > 2bar 3300 3300 3200 3200

Flow Q, l/min

- min Qmin

33,73 42,75 52,25 59,38

- nom Qnom

134,9 171,00 209,00 237,50

- max Qmax

205,72 260,78 313,50 356,25

- peak Qpeak

222,59 282,15 334,40 380,00

Operating pressure ∆P, bar

- nom ∆Pnom

250 250 250 250

- max ∆Pmax

400 400 400 400

- peak ∆Ppeak

450 450 450 450

Charge pump displacement Vn, ccm/rev 19,8 19,8 26,5 26,5

Charge pressure Pn, bar

- at Vg=0, n

nom27 27 27 27

- at Vg≠0, n

nom23 23 23 23

Charge pump inlet pressure (absolute) Ps, bar

- min working 0,8 0,8 0,8 0,8

- min short-term (t<5 min) (at cold start) 0,5 0,5 0,5 0,5

Drain pressure Pдр

, bar

- max 2,5 2,5 2,5 2,5

- peak (t<5 min) 5 5 5 5

Power N, kW

- nom Nnom

(at nnom

, Vg max

, Pnom

) 60,45 76,28 70,00 79,40

- max Nmax

(at nmax

, Vg max

, Pmax

) 146,32 184,95 222,54 252,54

- peak Npeak

(at npeak

, Vg max

, Ppeak

) 177,84 224,86 266,71 302,71

Torgue T, Nm

- nom Тnom

(at Vg max

, Pnom

) 288,61 364,21 445,77 505,46

- max Tmax

(at Vg max

, Pmax

) 458,11 579,07 708,38 803,87

- peak Tpeak

(at Vg max

, Ppeak

) 514,61 650,69 795,91 903,34

Volume efficiency 0,95 0,95 0,95 0,95

Weight, kg 67 67 80 80

Calculation of size

Flow Q=V

g • n • η

v l/min1000

Torque Т=V

g • ∆P

N•m20 • π • η

mh

Power N=Q • ∆P

kW612 • η

t

Where:Q – flow, l/minТ – torque, N•mN – power, kWV

g – pump diplacement, cm3

n – shaft speed, rpm∆P – pressure, barη

v – volume efficiency

ηmh

– hydro-mechanical efficiencyη

t = η

v • η

mh – overall efficiency

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Working fluid requirements.

Working fluid temperature:Max constant +75ºСMax peak (short-term) +100ºСMin short-term (at cold start) - 40ºС

Working fluid cinematic viscosity:optimal (constant) 20-35 mm2/sec (cSt)max startup 1500 mm2/sec (cSt)min short-term 10 mm2/sec (cSt) Working fluid purity: at least 12th class as per GOST 17216-71 at least 18/15th class as per ISO/DIN 4406

Allowed radial and axial loads on shaft.

Hydraulic pump bearing lifetime directly depends on the forces acting on pump shaft from outside.

The scheme of acting forces is given on the figure:

Mr = F

r • L – torque

Fout

– axial force from hydraulic pumpF

in – axial force into hydraulic pump

In order to avoid hydraulic motors premature failure it is necessary to observe Fout

the restrictions on outer forces on hydraulic motor output shaft. F

r

Fin

The values of peak loads on shaft are given in the table.

Parameter 416.0.71 416.0.90 416.0.110 416.0.125Radial load F

r, N 1800 3500

Cradle/shoulder L, mm 23.4 23.4Axial load F

in, N 2140 2110

Axial load Fout

, N 843 475

Tandem pump designation

Designation of tandem pump includes the designation of constituent pumps, f.i.:416.0.90RY3S3F33C22P/MVF1NN + 416.0.90RY2S2F33C22P/NVF1NN The marked letters in pumps designation should be given by default. Additional pumps can be mounted on the coupled pumps.Designation example of tandem pump with the option to mount additional pump with connection as per SAE A:416.0.90RY3S3F33C22P/MVF1NN + 416.0.90RY2S2F33C22P/AVF1NN

Tandem pump can be supplied with already mounted additional gear pump:416.0.90RY3S3F33C22P/MVF1NN + 416.0.90RY2S2F33C22P/AVF1NN + GP20

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P - Servocontrol.

Proportional servocontrol control converts a mechanical input signal to a hydraulic signal that tilts the cradle swashplate through an angular rotation varying the pump’s displacement from full displacement in one direction to full displacement in the opposite direction.The pump displacement is proportional to the lever rotation angle.

General view The control characteristic

Hydraulic Circuit

Pump output flow direction vs. control handle rotation

shaft rotation lever rotation flow directioncontrol pressure gauge

porthigh pressure gauge port

leftleft А1 => B1 X1 MB1

A2 => B2 X3 MB2

right B1 => A1 X2 MA1B2 => A2 X4 MA2

rightleft B1 => A1 X1 MA1

B2 => A2 X3 MA2

right A1 => B1 X2 MB1A2 => B2 X4 MB2

External control handle requirements:- dead zone ±20- proportional zone 20…260- maximum zone 260…300

Torque on lever:- start of control 2.8Nm- end of control 8.0Nm

Maximum torque on control lever 14Nm.

Attention! Excess of the given value can damage the pump. In case of possible excess of the maximum torque on the lever it is necessary to instal additional (external) limiter of an angle. where:

90 (71) + 90 (71) 125 (110) + 90(71) 125 (110) + 125 (110)Н1, mm 189 198 198H2, mm 189 189 189L1, mm 174 185 185L2, mm 518 559 570

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E3, E4 - Electrical Proportional Control.

Electrical proportional control is intended for transformation of an electrical control signal in an amplified hydraulic signal, which by means of servo piston moving the swash plate (on an angle ±20º) causes linear change of a pump displacement in each way.

The pump displacement is proportional to the control current delivered at the solenoid. General view The control characteristic

Pump output flow direction vs. input signal

shaft rotation solenoid flow directioncontrol pressure gauge


left

Е1 А1 => B1 X1 MB1E3 A2 => B2 X3 MB2Е2 B1 => A1 X2 MA1E4 B2 => A2 X4 MA2

right

Е1 B1 => A1 X1 MA1E3 B2 => A2 X3 MA2E2 A1 => B1 X2 MB1Е4 A2 => B2 X4 MB2

The control characteristicNominal voltage 12VDC 24VDCStart of control (a), I

min, mA 600 300

End of control (b), Imax

, mA 1500 750Maximum current (c), I

peak, mA 2500 1000

Resistance @ (at 20 ºС) 2.3W ±7% 13.4W ±7%Duty cycle 100%Protection to IEC 529 IP65PWM frequency 50…200HzSolenoid connector DIN 43650

Hydraulic Circuit

where:90 (71) + 90 (71) 125 (110) + 90(71) 125 (110) + 125 (110)

Н1, mm 173 181 181H2, mm 173 173 173L1, mm 173 184 184L2, mm 517 557 569

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Е1, Е2 - Electrical 3-Position Control.

Electrical 3-position control uses an electric input signal to switch the pump to a full stroke position in each side.


Pump output flow direction vs. input signal

shaft rotation solenoid flow directioncontrol pressure gauge


left

Е1 А1 => B1 X1 MB1E3 A2 => B2 X3 MB2Е2 B1 => A1 X2 MA1E4 B2 => A2 X4 MA2

right

Е1 B1 => A1 X1 MA1E3 B2 => A2 X3 MA2E2 A1 => B1 X2 MB1Е4 A2 => B2 X4 MB2

The control characteristicNominal voltage 12VDC 24VDCMaximum current, I

peak, mA 2500 1000

Resistance @ (at 20 ºС) 2.3W ±7% 13.4W ±7%Duty cycle 100%Protection to IEC 529 IP65Solenoid connector DIN 43650

Hydraulic Circuit

where:90 (71) + 90 (71) 125 (110) + 90(71) 125 (110) + 125 (110)

Н1, mm 173 181 181H2, mm 173 173 173L1, mm 173 184 184L2, mm 517 557 569

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НР - Hydraulic Proportional Control.

Hydraulic proportional control is intended for transformation of an hydraulic control signal in an amplified hydraulic signal, which by means of servo piston moving the swash plate (on an angle ±20º) causes linear change of a pump displacement in each way.

The pump displacement is proportional to the control pressure.

General view. The control characteristic

Pump output flow direction vs. input signal.shaft rotation control port flow direction control pressure gauge port high pressure gauge port

left

Y1 А1 => B1 X1 MB1Y3 A2 => B2 X3 MB2Y2 B1 => A1 X2 MA1Y4 B2 => A2 X4 MA2

right

Y1 B1 => A1 X1 MA1Y3 B2 => A2 X3 MA2Y2 A1 => B1 X2 MB1Y4 A2 => B2 X4 MB2

The control characteristicControl pressure- start of control (a), Р

min, bar 6.0

- end of control (b), Рmax

, bar 18.0

Hydraulic Circuit

where:90 (71) + 90 (71) 125 (110) + 90(71) 125 (110) + 125 (110)

Н1, mm 139 147 147H2, mm 139 139 147L1, mm 173 184 184L2, mm 517 557 569

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HD - Hydraulic Proportional Control without FeedBack.

Control pressure applied directly to the servo cylinder through either ports X1 or X2 (see The top view of pump). The pump displacement is proportional to the control pressure, but it also depends upon system pressure.


Pump output flow direction vs. input signalshaft rotation control port flow direction control pressure gauge port high pressure gauge port

left

Y1 А1 => B1 X1 MB1Y3 A2 => B2 X3 MB2Y2 B1 => A1 X2 MA1Y4 B2 => A2 X4 MA2

right

Y1 B1 => A1 X1 MA1Y3 B2 => A2 X3 MA2Y2 A1 => B1 X2 MB1Y4 A2 => B2 X4 MB2

The control characteristicControl pressure- start of control, Р

min, bar 6.0

- end of control, Рmax

, bar 22.0

Hydraulic Circuit

where:90 (71) + 90 (71) 125 (110) + 90(71) 125 (110) + 125 (110)

Н1, mm 168 176 176H2, mm 168 168 176L1, mm 135 144 144L2, mm 479 520 529

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Ports.

Operating (high pressure), drain and gauge ports. 90/71 ccm/rev displacement.

Operating (high pressure), drain and gauge ports. 125/110 ccm/rev displacement.

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Overall dimensions. 90/71 ccm/rev + 90/71 ccm/rev

Overall dimensions given for tandem pump 416.0.125RY3S4F34C22P/MVF1NN + 416.0.90RY2S2F22C22P/NVF1NN.

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Mounting flanges.

Y3 - mounting flange SAE D, 4 +2 bolts

Y5 - mounting flange SAE D, 4 bolts

Y4 - mounting flange SAE C, 4 +2 bolts - available only for 90/71 + 90/71 combination

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Auxiliary mounting pads.

А - flange SAE A, spline 9 teeth, 16/32 pitch where H for combination: 90/71 + 90/71 ccm/rev = 699,2mm 125/110 + 90/71 ccm/rev = 740,8mm 125/110 + 125/110 ccm/rev = 762,0mm

В - flange SAE B, spline 13 teeth, 16/32 pitch where H for combination: 90/71 + 90/71 ccm/rev = 682,2mm 125/110 + 90/71 ccm/rev = 723,8mm 125/110 + 125/110 ccm/rev = 745,0mm

Z - flange SAE A-A, spline 11 teeth, 16/32 pitch where H for combination: 90/71 + 90/71 ccm/rev = 699,2mm 125/110 + 90/71 ccm/rev = 740,8mm 125/110 + 125/110 ccm/rev = 762,0mm

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Auxiliary mounting pads.

Х - flange SAE B-B, spline 15 teeth, 16/32 pitch where H for combination: 90/71 + 90/71 ccm/rev = 682,2mm 125/110 + 90/71 ccm/rev = 723,8mm 125/110 + 125/110 ccm/rev = 745,0mm

К - flange Ø60, shaft end D-6x13x16 where H for combination: 90/71 + 90/71 ccm/rev = 699,2mm 125/110 + 90/71 ccm/rev = 740,8mm 125/110 + 125/110 ccm/rev = 762,0mm

L - flange Ø90, shaft end D-6x21x25 where H for combination: 90/71 + 90/71 ccm/rev = 696,2mm 125/110 + 90/71 ccm/rev = 737,8mm 125/110 + 125/110 ccm/rev = 759,0mm

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Shaft ends.

А2 - splined W35x2x30x16x9g DIN5480 А3 - splined W40x2x30x18x9g DIN5480 А4 - splined W45x2x30x21x9g DIN5480available only for 90/71 + 90/71 ccm/rev combination

S2 - splined 1 3/8” 21T 16/32pitch ANSI B92.1a S3 - splined 1 1/2” 23T 16/32pitch ANSI B92.1a S4 - splined 1 3/4” 13T 8/16pitch ANSI B92.1aavailable only for 90/71 + 90/71 ccm/rev combination

Tandem pumps

TECHNICAL CATALOGUE

PSM-HYDRAULICS

20 11

Tandem pumps TECHNICAL CATALOGUE · 400 400 400 400 - peak ∆P peak 450 450 450 450 Charge pump...

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