Series 20 Axial Piston Motors. Technical Information

Transcription

1 Series 20 xial Piston Motors Technical Information

2 General Description INTRODUCTION Sauer-Danfoss a world leader in hydraulic power systems has developed a family of axial piston motors. DESCRIPTION Sauer-Danfoss axial pistons fixed displacement motors are of swash plate design with preset displacement suitable for hydrostatic transmissions with closed loop circuit. The output speed is proportional to the motor s input flow. The output torque is proportional to the differential pressure applied to the main pressure ports. The direction of motor (output) shaft rotation depends on flow input to the main pressure ports. Sauer-Danfoss axial piston fixed displacement motors are well engineered and easy to handle. The full-length shaft with a highly efficient tapered roller bearing arrangement offers a high loading capacity for external radial forces. High case pressures can be achieved without leakage even at the lowest temperatures by using suitable shaft seals. Sauer-Danfoss axial piston units are designed for easy servicing. Complete dismantling and reassembly can be carried out with standard hand tools, and all components or subassemblies are replaceable. xial piston fixed displacement motors of the Sauer-Danfoss pattern are made by licensed producers worldwide, providing consistent service and fully inter-changeable parts. TYPICL MRKETS Industrial Mining Transit Mixer Utility Vehicles 2002 Sauer-Danfoss. ll rights reserved. Sauer-Danfoss accepts no responsibility for possible errors in catalogs, brochures and other printed material. Sauer-Danfoss reserves the right to alter its products without prior notice. This also applies to products already ordered provided that such alterations aren t in conflict with agreed specifications. ll trademarks in this material are properties of their respective owners. Sauer-Danfoss and the Sauer-Danfoss logotype are trademarks of the Sauer-Danfoss Group. Front cover illustrations: P101 XXX, P101 XXX, P101 XXX, P101 XXX 2 DKMH.PN.340.C L0516

3 Contents GENERL DESCRIPTION Introduction... 2 Description... 2 Typical markets... 2 SECTIONL VIEW xial piston fixed displacement motor... 4 SYSTEM CIRCUIT DESCRIPTION Pump and motor circuit description... 5 Motor circuit schematic... 5 TECHNICL SPECIFICTION Technical parameters... 6 Design... 6 Type of mounting... 6 Pipe connections... 6 Direction of rotation and flow... 6 Installation position... 6 External drain fluid loss... 6 Hydraulic parameters... 7 System pressure range, input p System pressure range, output p Case pressure... 7 Hydraulic fluid... 7 Hydraulic fluid temperature range... 7 Viscosity range... 7 Filtration... 7 Shaft load... 7 Determination of nominal motor size... 8 DIMENSIONS FRME SIZE 070 ND 089 Outline drawing, configuration ms... 9 Outline drawing, basic model...11 Outline drawing, motor configuration am Outline drawing, motor configuration mr...12 Circuit diadrams...13 Configuration MR...13 asic model and motor configuration M DIMENSIONS FRME SIZE 227 ND 334 Outline drawing, configuration ms...14 DKMH.PN.340.C L0516 3

4 Sectional View XIL PISTON FIXED DISPLCEMENT MOTOR Purge relief valve High pressure relief valves (adjustable) Cylinder block assembly Shaft seal Output shaft Valve block Shuttle valve Swashplate P E 4 DKMH.PN.340.C L0516

5 System Circuit Description PUMP ND MOTOR CIRCUIT DESCRIPTION HET EXCHNGER YPSS VLVE RESERVOIR CONTROL HNDLE HET EXCHNGER VCUUM GUGE REVERSILE VRILE DISPLCEMENT PUMP SERVO CONTROL CYLINDER PUMP SWSHPLTE SERVO PRESSURE RELIEF VLVES PURGE RELIEF VLVE FIXED DISPLCEMENT MOTOR CHRGE PRESSURE RELIEF VLVE INPUT SHFT LOOP FLUSHING VLVE OUTPUT SHFT SERVO CONTROL CYLINDER MOTOR SWSHPLTE WORKING LOOP (HIGH PRESSURE) WORKING LOOP (LOW PRESSURE) CONTROL FLUID SUCTION LINE CSE DRIN FLUID bove figure shows schematically the function of a hydrostatic transmission using an axial piston variable displacement pump and a fixed displacement motor. P E MOTOR CIRCUIT SCHEMTIC L 2 L M M 3 M 1 P Designation: 1 = Fixed displacement motor 2 = Purge relief valve 3 = Shuttle valve 4 = High pressure relief valve Ports:, = Main pressure ports (working loop) L 1, L 2 = Drain ports M = Gauge port for port M = Gauge port for port M = Gauge port - charge pressure DKMH.PN.340.C L0516 5

6 Technical Specification TECHNICL PRMETERS Design xial piston motor with fixed displacement and swash plate design. Type of mounting SE four bolt flanges. Pipe connections Main pressure ports: SE split flange Remaining ports: SE O-ring boss Direction of rotation and flow Clockwise or counterclockwise (viewing from the output shaft). Direction of rotation Port Port Clockwise (R) Output Input Counterclockwise (L) Input Output Installation position Optional; motor housing must be always filled with hydraulic fluid. External drain fluid loss Typical values for 350 bar [5076 psi] and 18 swashplate angle (US gal/min) External drain fluid loss (l/min) Driveshaft speed n (min -1 ) (rpm) P E 6 DKMH.PN.340.C L0516

7 Technical Specification HYDRULIC PRMETERS System pressure range, input p 1 Pressure on port or : Max. operating pressure Max. high pressure setting p = 420 bar [6092 psi] p = 460 bar 1 [6672 psi] 1 only with POR-valve System pressure range, output p 2 Normal setting for configuration MS and MR: bar [ psi] above case pressure. Minimum: 8 bar, intermittent only Case pressure Max. rated pressure = 2.5 bar [36.3 psi] Intermittent = 5.0 bar [72.5 psi] Hydraulic fluid Refer to Sauer-Danfoss publication Hydraulic Fluids and Lubricants and Experience with io Fluids for biodegradable hydraulic fluids. Hydraulic fluid temperature range ϑ min = - 40 C [- 40 F] ϑ max = 95 C [203 F] Viscosity range ν min = 7 2 /s [49 SUS*] ν max = /s [4630 SUS*] (intermittent cold start) Recoended viscosity range: /s [ SUS*] *SUS (Saybolt Universal Second) Filtration Required cleanliness level: ISO Code 22/18/13 or better. Refer to Sauer-Danfoss publication Hydraulic Fluids and Lubricants and Design Guideline for Hydraulic Fluid Cleanliness. Shaft load The pump will accept radial and axial loads on its shaft, the maximum capacity being determined by direction and point of application of the load. Please contact your Sauer-Danfoss representative. DKMH.PN.340.C L0516 7

8 Technical Specification HYDRULIC PRMETERS (continued) Technical data Frame size Max. displacement cm [in 3 ] [4.26] [5.43] [13.87] [20.36] Rated speed 1 min -1 (rpm) Theoretical torque Nm/bar [in lb/1000 psi] [677] [867] [2209] [3240] Mass moment of inertia of rotating group kg m [lbf ft ] [292.8] [421.7] [2059.8] [3830.0] 1 for higher speeds contact your Sauer-Danfoss representative Determination of nominal motor size Unit: Metric System: Inch System V g n V g n Input flow Q e = l/min Q e = [gpm] 1000 η v 231 η v V g p η m V g p η m Output torque M e = Nm M e = [lbf in] 20 π 2 π Q e p η t V g n p η t Output power P e = kw P e = [hp] Q e 1000 η v Q e 231 η v Speed n = min -1 n = (rpm) V g V g Efficiency characteristic curves available on request. V g = Moror displacement per revolution cm 3 [in 3 ] n = Motor speed min -1 (rpm) p = Hydraulic pressure differential bar [psid] p = p HD - p ND η v = Moror volumetric efficiency η m = Moror mechanical efficiency η t = Moror total efficiency p HD = High pressure bar [psid] p ND = Low pressure bar [psid] 8 DKMH.PN.340.C L0516

9 Dimensions Frame Size 070 and 089 cm 3 OUTLINE DRWING, CONFIGURTION MS Coupling may not protrude beyond L maximum lenght of full spline K J E Port "L1": Case drain port (use highest port as outlet) pprox. centre of gravity Purge relief valve X Ø N Ø O Ø P Ø R F F Ø H Shuttle valve (both sides) Y G M Port "" Shaft spline data: * Pitch Ø = S Pressure angle = 30 Number of teeth = T Pitch = U 12.45±0.24 D C Port "L2": Case drain port P E Flange design 2/070 View Y Gauge port "M " Gauge port "M " Gauge port "M" charge pressure Port "" Port "" High pressure relief valve for port "" High pressure relief valve for port "" V Port "" 219 V Port "" P E * Shaft spline data: spline shaft with involute spline, according to SE handbook, 1963, class 1, fillet root side fit. Frame size Port and Port L 1 and L 2 Port M and M Port M SE flange, size SE split flange boss 7/8-14 UNF-2 7/16-20 UNF psi SE straight thread SE straight thread 4 threads O-ring boss O-ring boss 089 3/8-16 UNC-2 18 deep DKMH.PN.340.C L0516 9

10 Dimensions Frame Size 070 and 089 cm 3 OUTLINE DRWING, CONFIGURTION MS (continued) View X (for SMF 2/070 only) Rotation W 45 L R Ø193.5 Ø162 pprox. centre of gravity Ø P E View X (for SMF 2/089 only) 45 Rotation W L R Ø162 pprox. centre of gravity Ø15 + 0,8 0,3 168 P DKMH.PN.340.C L0516

11 Dimensions Frame Size 070 and 089 cm 3 OUTLINE DRWING, CONFIGURTION MS (continued) Dimensions Frame size [14.882] [15.551] Frame Ø N size [5.000] [5.000] C D E [11.417] [10.039] [6.496] [4.252] [12.087] [10.748] [6.693] [4.646] Ø O Ø P Ø R Ø S [3.307] [ ] [0.335] [1.313] [3.858] [ ] [0.335] [1.438] F 86.5 [3.406] 96.0 [3.780] T 21 [0.827] 23 [0.906] G 98 [3.858] 107 [4.213] U 16/32 16/32 Ø H 161 [6.339] 181 [7.126] V 85.8 [3.378] 95.2 [3.748] J 16 [0.630] 18 [0.709] W 101 [3.976] 114 [4.488] K L [2.205] [1.890] [2.205] [1.890] Diameter for shaft coupling [ ] [ ] M 28.4 [1.118] 28.4 [1.118] Weight kg [lb] 40 [88] 47 [104] OUTLINE DRWING, SIC MODEL D Return from purge relief valve to motor case R3/4 C Dimensions P E Frame size C D Weight kg [lb] [11.417] 30 [1.181] 12 [0.472] 34 [75] 2 [0.079] [12.087] 44 [1.732] 6 [0.236] 41 [90] For further dimensions see previous pages. OUTLINE DRWING, MOTOR CONFIGURTION M Return from purge relief valve to motor case 7/8-14 UNF Dimensions Frame size Weight 1 kg [lb] [12.402] 36 [79] [13.071] 43 [95] P E 1 Light weight and short options available on request For further dimensions see previous pages. DKMH.PN.340.C L

12 Dimensions Frame Size 070 and 089 cm 3 OUTLINE DRWING, MOTOR CONFIGURTION MR Purge relief valve Gauge port "M " Gauge port "M " Gauge port "M" charge pressure Shuttle valve (both sides) Port "" Port "" 12 High pressure relief valve for port "" High pressure relief valve for port "" ypass - handle 9.4 ± 0.25 Partial View - ypass valve opened 90 ypass valve closed 3 x Ø P E Dimensions Frame size Weight kg [lb] Port M and M Port M [16.772] 391 [15.394] 42 [93] 7/16-20 UNF [17.441] 408 [16.063] 49 [108] SE straight thread O-ring boss For further dimensions see previous pages. 12 DKMH.PN.340.C L0516

13 Dimensions Frame Size 070 and 089 cm 3 CIRCUIT DIDRMS Configuration MR M L L 1 M M P asic model and motor configuration M L 2 1 Return from purge relief valve to motor case Designation: 1 = Fixed displacement motor 2 = Purge relief valve 3 = Shuttle valve 4 = High pressure relief valve 5 = ypass valve L 1 P E Ports:, = Main pressure ports (working loop) L 1, L 2 = Drain ports M = Gauge port for port M = Gauge port for port M = Gauge port - charge pressure DKMH.PN.340.C L

14 Dimensions Frame Size 227 and 334 cm 3 OUTLINE DRWING, CONFIGURTION MS J E Port "L 1 ": Case drain port (use highest port as outlet) Coupling may not protrude beyond L maximum lenght of full spline 77 pprox. centre of gravity Purge relief valve 36.5 X Ø N Ø O Ø P Ø R F G F 79.4 Y Ø H Shuttle valve (both sides) M 12.45±0.24 D Port "L 2 ": Case drain port Port "" Shaft spline data: * Pitch Ø Pressure angle Number of teeth Pitch = S = 30 = T = U C P E-1 View Y View X Gauge port "M" Gauge port "M" CC 45 Rotation Gauge port "M" charge pressure L R X W Port "" Port "" Y High pressure relief valve for port "" High pressure relief valve for port "" pprox. centre of gravity V Port "" Z V Port "" P E-2 * Shaft spline data: spline shaft with involute spline, according to SE handbook, 1963, class 1, fillet root side fit. 14 DKMH.PN.340.C L0516

15 Dimensions Frame Size 227 and 334 cm 3 OUTLINE DRWING, CONFIGURTION MS (continued) Dimensions Frame size Frame size Frame size [19.606] 537 [21.142] M 38.4 [1.512] 46.2 [1.819] W 156 [6.142] 176 [6.929] 410 [16.142] 449 [17.677] Ø N [6.500] [7.000] X 160 [6.299] 174 [6.850] C 346 [13.622] 389 [15.315] Ø O 110 [4.331] 114 [4.488] Y 265 [10.433] 298 [11.732] D [8.996] 278 [10.945] Ø P [ ] [ ] Z 265 [10.433] 298 [11.732] E [5.500] 154 [6.063] Ø R [0.465] [0.565] [12.500] 350 [13.780] F [5.311] 143. [5.650] Ø S [1.688] [2.500] 20.6 ± 0.4 [0.811 ± ] [ ] G 152 [5.984] 161 [6.339] T 27 [1.063] 40 [1.575] CC 13 [0.512] 18 [0.709] Ø H 264 [10.394] 292 [11.496] U 16/32 16/32 Diameter for shaft coupling [ ] [ ] J 27 [1.063] 38 [1.496] V [5.657] [6.248] Weight kg [lb] 152 [335] 197 [434] Frame size Port and Port L 1 and L 2 Port M and M Port M SE flange, size 1 1/2 227 SE split flange boss 1 7/8-12 UNF-2 7/16-20 UNF psi SE straight thread SE straight thread 4 threads O-ring boss O-ring boss 334 5/8-11 UNC-2 35 deep DKMH.PN.340.C L

16 OUR PRODUCTS Hydrostatic transmissions Hydraulic power steering Electric power steering Electrohydraulic power steering Closed and open circuit axial piston pumps and motors Gear pumps and motors ent axis motors Orbital motors Transit mixer drives Planetary compact gears Proportional valves Directional spool valves Cartridge valves Hydraulic integrated circuits Hydrostatic transaxles Integrated systems Fan drive systems Electrohydraulics Microcontrollers and software Electric motors and inverters Joysticks and control handles Displays Sensors Sauer-Danfoss Mobile Power and Control Systems Market Leaders Worldwide Sauer-Danfoss is a comprehensive supplier providing complete systems to the global mobile market. Sauer-Danfoss serves markets such as agriculture, construction, road building, material handling, municipal, forestry, turf care, and many others. We offer our customers optimum solutions for their needs and develop new products and systems in close cooperation and partnership with them. Sauer-Danfoss specializes in integrating a full range of system components to provide vehicle designers with the most advanced total system design. Sauer-Danfoss provides comprehensive worldwide service for its products through an extensive network of uthorized Service Centers strategically located in all parts of the world. Sauer-Danfoss (US) Company 2800 East 13th Street mes, I 50010, US Phone: , Fax: Sauer-Danfoss (Neumünster) GmbH & Co. OHG Postfach 2460, D Neumünster Krokamp 35, D Neumünster, Germany Phone: , Fax: Sauer-Danfoss (Nordborg) /S DK-6430 Nordborg, Denmark Phone: , Fax: DKMH.PN.340.C L0516