VDR22 Design Series Variable Volume Vane Pump

Transcription

1 VDR DESIGN SERIES VARIALE VOLUME VANE PUMP VDR Design Series Variable Volume Vane Pump Features qstable, highly efficient operation up to 1MPa A biased piston that minimizes ring vibration and leak-free pressure balance construction enables highly efficient high-pressure operation, and very stable performance up to 1MPa. whigh-precision instantaneous response Response has been improved by a special bias piston mechanism. Prompt response at both ON-OFF and R/min 1MPa R/min 7MPa OFF-ON ensures instantaneous, stable, high-precision operation. esilent operation, even in the high pressure range uiet journal bearings, a bias piston that allows a -point support system, and new suction and discharge port shapes all contribute to minimize operation noise. Silent, vibration-free operation is ensured, even in the high pressure range. rreduced power loss A combination of NACHI-original mechanical innovations and precision machining create a pump that minimizes power loss, especially at full cutoff. tsolid construction stands up to harsh operating conditions The tough and rugged construction of this pump is made possible by a long history of quality pump designs. This, in combination with specially selected materials and skilled workmanship, provides outstanding durability. Specifications Single Pump Capacity No-load Discharge Rate (r/min) Pressure Adjustment Allowable Peak Revolution Speedmin 1 Weight Model No. Range Pressure cm /rev 1min 1 1min 1 1min 1 18min 1 MPa{kgf/cm } MPa{kgf/cm } Min. Max. kg VDR-1A()-1A- 1. to. {1. to.7} 1 1A to 7 {.6 to 71.} {1} A 6. to 1. {66. to 17} 1 1A 9 to 1 {91.8 to 1} {1} VDR-1A()-A- 1. to. {1. to.7} A to 7 {.6 to 71.} {1} Double Pump Model No. Vent Side Shaft Side Vent Side Shaft Side Revolution Speedmin 1 Weight Foot Mounting Type Discharge Pressure Discharge Pressure Adjustment Allowable Peak Pressure Adjustment Range Range Min. Max. kg (Flange Mounting Type) Rate r/min MPa{kgf/cm } Rate r/min MPa{kgf/cm } MPa{kgf/cm } VDR-11A()-1A-1A- 1. to. 1. to.{1. to.7} VDR-11A()-1A-1A- {1. to.7} to 7 {.6 to 71.} to 7 {1} VDR-11A()-1A-1A- to 7 {.6 to 71.} {.6 to 71.} VDR-11A()-A-A- VDR-11A()-A-A- VDR-11A()-A-A- 1. to. {1. to.7} to 7 {.6 to 71.} 1. to.{1. to.7} to 7 {.6 to 71.} 1 {1} to 7 {.6 to 71.} Note) 1. The discharge rate is the value at 18min 1 no-load.. The change from design number 1 to design number represents a change in the shaft key width from.mm to.76mm. This means that when using a.mm key coupling, you need to use a stepped key (VD1J-) or add a new key groove at Handling zrotation Direction The direction of rotation is always is clockwise (rightward) when viewed from the shaft side. xdrain Drain piping must be direct piping up to a point that is below the tank fluid level, and back pressure due to pipe resistance should not exceed.mpa. When using a pump that has drain ports at two locations, use the drain port that is higher after the pump is installed. cdischarge Volume Adjustment The discharge flow rate is decreased by clockwise (rightward) rotation of the discharge rate adjusting, and increased by counterclockwise (leftward) rotation. Loosen the lock nut before making adjustments. After adjustment is complete, re-tighten the lock nut. The graph on the right provides general guidelines for the relationship between the rotation angle of the flow rate adjusting and the no-load discharge rate. Pump capacity cm /rev (Continued on following page)

2 However: =q n 1 :No-load Discharge Rate r/min q :Volume cm /rev N :Revolution Speed min 1 The broken line shows the flow volume adjustment range lower limit value. Note) The values indicated above are at maximum discharge volume with the flow volume adjusting at the position. vpressure Adjustment Pressure is decreased by clockwise (rightward) rotation of the Understanding Model Numbers Single pump VDR 1 A 1 A Double pump Ring size Design number discharge rate adjusting, and increased by counterclockwise (leftward) rotation. bfactory Default P- Settings (Standard Model) Flow Rate Setting = Maximum flow rate for model as indicated in the catalog Pressure Setting = Pressure shown in table to the right nthrust The thrust is precision adjusted at the factory during assembly. Never touch the thrust. See in Pressure adjustment range : 1. to.mpa {1. to.7kgf/cm } : to 7MPa {.6 to 71.kgf/cm } : 6. to 1.MPa {66. to 17kgf/cm } : 9 to 1MPa {91.8 to 1kgf/cm } Note: Ring size: In the case of, maximum setting pressure is 7Mpa (71.kgf/cm ). 1: /min : /min Mounting method A: Foot type mounting : Flange type mounting Pump size: 1 VDR 11 A 1 A 1 A Flow rate characteristics A: Constant discharge rate type } at 18min 1 Pump Type: VDR Series Variable Discharge Rate Vane Pump Design number Shaft side pressure adjustment range : 1. to.mpa {1. to.7kgf/cm } : to 7MPa {.6 to 71.kgf/cm } Head side pressure adjustment range : 1. to.mpa {1. to.7kgf/cm } : to 7MPa {.6 to 71.kgf/cm } Head side flow rate characteristics (based on single pump) Head side ring size (based on single pump) Mounting method A: Foot type mounting : Flange type mounting Pump size: 11 Shaft side flow rate characteristics (based on single pump) Shaft side ring size (based on single pump) Pump Type: VDR Series Variable Discharge Rate Vane Pump Factory Default Pressure Settings MPa{kgf/cm } :. {.7} : {.6} : 6. {66.} : 9 {91.8} the cross-section diagram on page -11. minitial Operation efore operating the pump for the first time, put the pump discharge side into the no-load state and then repeatedly start and stop the motor to bleed all air from inside the pump and the suction piping. After confirming that the pump is discharging oil, continue the no-load operation for at least 1 minutes to discharge all the air from the circuit. Provide an air bleed valve in circuits where it is difficult to bleed air before startup.,sub Plate Use the following table for specification when a sub plate is required. Pump Model No. Sub Plate Number Motor(kW) VDR-1A-1A*- VDR-1A-A*- VDR-11A-*A* -*A*- MVD to 1. MVD to.7 MVD-1-11Y-1.7 to 1. MVD-1-1Y-1. to.7 MVD MVD-11-1X-1 1. to.7 For detailed dimensions, see pages -17 through -19..For the hydraulic operating fluid, use type ISO VG or equivalent (viscosity index of at least 9) for pressures of 7MPa or lower, and type ISO VG68 or equivalent (viscosity index of at least 9) for pressures greater than 7MP. The operating temperature range is 1 to 6 C. When the oil temperature at startup is 1 C or less, perform a warm-up operation at low pressure until the oil temperature reaches 1 C. Use the pump in an area where the temperature is within the range of to 6 C. 1Suction pressure is -. to +.MPa (-. to +.kgf/cm ), and the suction port flow rate should be to greater than m/sec. Avoid pulley, gear, and other drive systems that impart a radial or thrust load on the end of the pump shaft. Mount the pump so its pump shaft is oriented horizontally. (Continued on following page) -7

3 Provide a suction strainer with a filtering grade of about 1 µm (1 mesh). For the return line to the tank, use a µm line filter. Manage hydraulic operating fluid so contamination is maintained at class NAS1 or lower. Take care to avoid contamination with water or other foreign matter, and watch out for discoloration. Whitish fluid indicates that air has contaminated the Installation Dimension Drawings VDR-1A-*A*- Pressure adjusting fluid, and brownish fluid indicates the fluid is dirty. Contact your agent about using water- and glycol-based hydraulic operating fluids. 6At startup, repeat the inching operation (start-stop) to bleed air from the pump and pipes. 7Equip an air bleed valve in circuits where it is difficult to bleed air before startup. See page C-1 for Flow rate adjusting more information. 8To ensure proper lubrication of the pump's rubbing surfaces, supply oil to the interior of the pump before starting operation. 9When centering the pump shaft, eccentricity with the motor shaft should be no greater than.mm. Use a pump mounting base of sufficient rigidity. The angle error should be no greater than 1. Rc 1/ DR (1A, 1A type only) IN ( 6) 1A-P DR ( 1) 1A-P1A OUT ( 6) 1A-P ±. 1. ± VDR-1-*A*- Pressure adjusting Rc 1/ DR (1A,1A type only) 1 DR port position 77. Flow rate adjusting 9.. A Rc 1/ DR Rc 1/ IN to 11 Rc /8 OUT 11 9 ± ± Auxiliary View A -8

4 VDR-11A-*-*- 7 Pressure adjusting Flow rate adjusting to ±. 1 to IN ( 6) 1A-P to DR ( 1) 1A-P1A to OUT ( 6) 1A-P.± VDR-11-*-*- Flow rate adjusting 77 9 Pressure adjusting IN to Rc 1/ to 11 hole OUT to Rc / ± ± DR to Rc 1/ -9

5 Performance Curves Typical characteristics at hydraulic operating fluid kinematic viscosity of mm /s min 1 1min 1 18min 1 1min min 1 1min 1 18min 1 1min {.1} {1.} {1.} {.} {.}{.6} {.7} {1.} {.} {.6} {.8} {1} {61.} {71.} {.} {71.} {17} min 1 1min 1 18min 1 1min min 1 1min 1 18min 1 1min min 1 1min 1 18min 1 1min {.7} {71.} {17} {1} {.1} {1.} {1.} {.} {.} {.6} {.7} {1.} {.} {.6} {.8} {1} {61.} {71.} min 1 1min 1 18min 1 1min 1 1 Use the formula below to calculate a pump's required drive force. H : Input (kw) P H = + L P : Pressure MPa 6 : Flow rate r/min L : Power loss kw Power Loss Curve Power loss at full cutoff kw min {.} {71.} {17} {1} 1min 1 Noise level d(a) Noise Characteristics Measurement Position: 1 meter behind pump 18min 1 1min {.} {71.} {17} {1} -1

6 Cross-sectional Drawing VDR-1A-*A* List of Sealing Parts Single Pump Applicable Pump Model No. VDR-1A-*- Part No. Seal Kit Number VDS-11A Part Name Part Number 'ty 18 Packing VD Oil seal ISRD ackup ring VD-11 1 ackup ring VD S8(NOK) 1 1A-P 1 1A-P 1 1A-P1 1 1A-P1 1 AS AS A-P 1A-P1A 1 Note) 1. Oil seals are manufactured by Nippon Oil Seal Industry Co. Ltd. (NOK).. 1A-** refers to JIS 1-1A-**.. For VDR-1-*-, the seal kit number becomes VDS-11, without the and s. Part No Part Name ody (A) ody () Cover Cover Shaft Rotor Ring Vane Plate (S) Plate (H) Piston Spring Nut Piston Holder Adapter Packing earing (S) earing (H) Thrust Nut Key Part No Part Name Pin Spring pin Oil seal Snap ring ackup ring ackup ring Nut Plug Key Nameplate Cap Pin Double Pump Applicable Pump Model No. VDR-11A-*-*- Part Name Seal Kit Number VDS-111A Part Name Part Number 'ty 18 Packing VD-11 7 Oil seal ISRD ackup ring VD-11 ackup ring VD-1 1 S8(NOK) 1A-P 1A-P 1A-P1 1A-P1 AS AS68-9 1A-P 1A-P1A Note) 1. Oil seals are manufactured by Nippon Oil Seal Industry Co. Ltd. (NOK).. 1A-** refers to JIS 1-1A-**.. For VDR-11-*-*-, the seal kit number becomes VDS-111, without the and s. -11

7 VDR-11A-*A*-*A* Uni-pump Specifications Understanding Model Numbers UVD 1 A A 1. 6 UVD 11 A A A 1. 6 Design number Number of motor poles: (P) Motor output (kw).7, 1.,.,.7 Pressure adjustment range : 1. to.mpa {1. to.7kgf/cm } :. to 7.MPa {.6 to 71.kgf/cm } Flow characteristics A: Constant discharge type A: Foot type mounting Pump size 1: VDR-1 (D) Pump Type: VDR () Series Uni-pump Design number Number of motor poles: (P) Shaft side pump pressure adjustment range : 1. to.mpa {1. to.7kgf/cm } :. to 7.MPa {.6 to 71.kgf/cm } Shaft side pump flow rate characteristics A: Constant discharge type Head side pump pressure adjustment range: Same as the shaft side pump Head side pump flow rate characteristics A: Constant discharge type A: Foot type mounting Pump size 11: VDR-11 (D) Pump Type: VDR () Series Uni-pump Specifications Model No. UVD-1A UVD-11A Maximum Working Pressure MPa{kgf/cm } 7{71.} 7{71.} Maximum Flow Rate r/min Hz - 6Hz - -1

8 Motor selection curves 6Hz areas Hz areas 1.7kW Installation Dimension Drawings UVD-1A 1.kW.kW {1.} {.} {.6} {.8} {1} {61.} {71.} Selecting a motor The area under a motor output curve in the graph to the left is the operating range for that motor under the rated output for that motor. Example: To find the motor that can produce pressure of.mpa and a discharge rate of r/min. Selection Process Since the intersection of the two broken lines from a pressure of.mpa and discharge rate of r/min intersect in the area under the.kw curve, it means that a.kw motor should be used. In the case of a double pump configuration, select a motor that is larger than the total power required by both pumps. D KL (IN-OUT port dimension) Flow rate adjusting Rc 1/ (IN) Rc /8 (OUT on opposite side) IL P Hangers x L P O A Pressure adjusting E M E J KD (Round drain hole) G H C V 1 Rc 1/ (DR) T R F N F S Auxiliary View R ( locations) Uni-pump Motor Dimensions mm A IL C D E F G H J L M N S T KD KL O P V Output Frame Weight kw No. kg ( poles) UVD-1A-A M.7 1 UVD-1A-A UVD-1A-A UVD-1A-A UVD-1A-A-.--6 UVD-1A-A-.--6 UVD-1A-A-.--6 UVD-1A-A UVD-1A-A L L M.7 8 UVD-1A-A kW model does not have hangers. -1

9 UVD-11A Pressure adjusting D KL (IN-OUT port dimension) J E E M KD (Round drain hole) Flow rate adjusting G V C. H -Rc 1/ (IN) -Rc /8 (OUT on opposite side) -Rc 1/ (DR) T R IL Hangers x F P L N P O F A S Auxiliary View R ( locations) Uni-pump UVD-11A-A-A Motor Dimensions mm A IL C D E F G H J L M N S T KD KL O P V Output Frame Weight kw No. kg ( poles) UVD-11A-A-A UVD-11A-A-A UVD-11A-A-A-.--6 UVD-11A-A-A-.--6 UVD-11A-A-A-.--6 UVD-11A-A-A L L. UVD-11A-A-A UVD-11A-A-A UVD-11A-A-A UVD-11A-A-A M.7 6 UVD-11A-A-A