VDS Series Small Variable Volume Vane Pump

Transcription

1 VS SRS SA VARA VU VA PUP VS Series Small Variable Volume Vane Pump eatures q igh efficiency operation with minimal power loss All the performance of the original new VR series mechanisms combines with precision machining for a pump that minimizes power loss, especially at full cutoff. wquiet operation ournal bearings with a proven record on P pumps plus new suction and discharge port configurations reduce operating noise and deliver quiet operation with minimal vibration, even in the Specifications odel o. VS-A()-1A1-1 -1A -1A apacity cm /rev andling zthe direction of rotation for this pump is clockwise (rightward) when viewed from the shaft side. xrain 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.pa. cwhen adjusting pressure, pressure is increased by clockwise (rightward) rotation of the adjusting screw and decreased by counterclockwise (leftward) rotation. vwhen adjusting the flow rate, the flow rate is decreased by clockwise (rightward) rotation of the adjusting screw and increased by counterclockwise (leftward) rotation. The graph on the right provides general guidelines for the relationship between the rotation angle of the flow rate adjusting screw and the noload discharge rate. bactory efault P-Q Settings (Standard odel) low Rate Setting = aximum flow rate for model as indicated in the catalog Setting = shown in table below actory efault Settings Pa{kgf/cm } 1 :. {.} :. {.7} : 7. {71.} high-pressure range. cm /rev l 7Pa e ompact and simple design, easy operation ompact and quiet, VS Series variable vane pumps are economical and easy to handle. A simple design allows use in a wide range of hydraulic systems. r Precise characteristics, prompt response Prompt response at both - and - ensures instantaneous, stable, o-load ischarge Rate l/min Adjustment Range Pa {kgf/cm } 1 to {1. to.} 1. to. {. to.7} to 7 {. to 71.} high-precision operation. t Solidly built for high efficiency and long life VS Series pumps are built to last, with a design that incorporates years of A experience and know-how. Specially selected materials and skilled workmanship provide outstanding durability along with stable, high-efficiency operation. Allowable Peak Pa {kgf/cm } Revolution Speed min 1 1min -1 1min -1 min -1 1min -1 in. ax owever: Q=q n 1 Q : o-load ischarge Rate (l/min) q : apacity (cm /rev) : Revolution Speed min 1 Pump apacity q cm /rev low Adjustment Rotation Angle ( θ ) and Pump apacity (q) Rotation Angle θ (lockwise) The values indicated above are at maximum pump discharge volume with the flow volume adjusting screw at the position. The broken line shows the flow volume adjustment range lower limit value. {} 1 Weight kg A :. :. nthrust The thrust screw is precisely adjusted at the factory during assembly. ever touch the thrust screw. See callout o in the cross-section diagram on page -. mnitial peration 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.,or the hydraulic operating fluid, use an R& type and wear-resistant type of S V to or equivalent (viscosity index of at least 9). Use hydraulic operating fluid that provides kinematic viscosity during operation in the range of to mm /s..the operating temperature range is to. When the oil temperature at startup is or less, perform a warm-up operation at low pressure until the oil temperature reaches. Use the pump in an area where the temperature is within the range of to. (ontinued on following page) -1

2 Suction pressure is -. to +.Pa (-. to +.kgf/cm ), and the suction port flow rate should to greater than m/sec. 1Avoid pulley, gear, and other drive systems that impart a radial or thrust load on the end of the pump shaft. ount the pump so its pump shaft is oriented horizontally. Provide a suction strainer with a filtering grade of about 1 μm ( mesh). or the return line to the tank, use a μm line filter. anage hydraulic operating fluid so contamination is maintained at class AS1 or lower. Take care to avoid contamination with water or other foreign matter, and watch for discoloration. Whitish fluid indicates that air has contaminated the fluid, and brownish fluid indicates the fluid is dirty. At startup, repeat the inching operation (start-stop) to prime the pump and bleed air from the pump and pipes. (This pump has no fluid supply port.) quip an air bleed valve in circuits where it is difficult to bleed air before startup. See page -1 for more information. When centering the pump shaft, eccentricity with the motor shaft should be no greater than.mm. The angle error should be no greater than 1. nverter rive Precautions zset the revolution speed within the range of the pump specification revolution speed. xhanging the revolution speed may also affect the pump performance curves. efore using the inverter, check if the pressure and motor load factor are within the range of use. xplanation of model o. VS * 1 A * 1 esign number low ate characteristics Ring size Pump size: 1:l/min (1 min -1 no load) nstallation imension rawings VS-A-1A-*-1 oot ounting Type adjustment range 1: 1 to Pa {1. to.kgf/cm } : 1. to.pa {. to.7kgf/cm } : to 7Pa {. to 71.kgf/cm } A: onstant discharge rate type ounting method A: oot type mounting : lange type mounting Pump Type: VS Series ompact Variable Vane Pump adjusting screw R 17. Rc 1/ R Rc / UT Rc 1/ 1 UT..7 (1) AX ± P 1. to 11 low rate adjusting screw ote) oot ounting it:

3 VS--1A-*-1 lange ounting adjusting screw R UT Performance urves Width across flats 11. low rate adjusting screw. AX 1 AX Rc 1/ R Rc / UT 1 (-UT port dimension) 1 Rc 1/ Typical characteristics at hydraulic operating fluid kinematic viscosity of mm /s min 1 Q min 1 Axial nput At ull utoff 1. ischarge rate Q l/min 1 1A1 1A 1min 1 min 1 1A 1 7 {1.} {.} {.} {.} {1.} {.} {71.} ischarge pressure P Pa{kgf/cm } oise haracteristics nput in (kw) easurement Position: 1 meter behind pump Axial input at full cutoff kw.... 1min 1 min {1.} {.} {.} {.} {1.} {.} {71.} oise level d(a) 7 1min 1 min {1.} {.} {.} {.} {1.} {.} {71.} ischarge pressure P Pa{kgf/cm } ischarge pressure P Pa{kgf/cm } -

4 ross-sectional rawings VS--1A* R 19 1 ist of Sealing Parts Seal it: VAS-1 Applicable Pump odel: VS-A/-1A*-1 Part o. Part ame Part umber Q'ty 1 -ring AS-(R-9) ring AS-(R-9) 1 -ring S ring R-7-1 P 1 -ring R-7-1 P1 7 il seal T-17-V 1 ote) 1. il seals are manufactured by ippon il Seal ndustry o. td. ().. The materials and hardness of the -ring conform with S 1. Specifications Understanding odel umbers USV A A 1. Part o umber of motor poles: (P) otor output (kw).,.7, 1. adjustment range 1: 1. to.pa {1. to.kgf/cm } :. to 7.Pa {. to 71.kgf/cm } low characteristics esign number A: onstant discharge type otor mounting method A: oot type mounting Pump size : VS Pump Type: VS Series Part ame ody over (A) over () Shaft am ring Vane Plate (S) Plate () Thrust screw Piston older Spring ut ap Part o ( mark standard compliant) : 1. to.pa {. to.7kgf/cm } Part ame ey ut -ring -ring -ring -ring -ring earing il seal Snap ring Pin ameplate aximum Working Pa{kgf/cm } aximum low Rate l/min z z 7 {71.} Standard drive motor is the fully enclosed fan-cooled type (.kw) and type (.7, 1.kW).. Standard voltage for drive motor is VA, / z or VA, z.. Standard terminal box is terminal (right side viewed from pump). -

5 otor Selection urves z areas z areas ischarge rate Q l/min 1 USV-A-A* kw.7kw 1.kW 1 7 {1.} {.} {.} {.} {1} {.} {71.} ischarge pressure P Pa{kgf/cm } nstallation imension rawings Suction port Rc1/ Pump model (nameplate) -. 1 ischarge port Rc/ Terminal box terminal (Round drain hole) (The height to the topmost part of the hanging bolt) adjusting screw 1 AX.1 AX. rain port Rc1/ low rate adjusting screw 1..kW lectric drive conceptual diagram anging bolt R ow to select 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. xample: To find the motor that can produce pressure of.pa and a discharge rate of 1. l/min. Selection Process Since the intersection of the two broken lines from a pressure of.pa and discharge rate of 1. l/min intersect in the area under the 1.kW curve, it means that a 1.kW motor should be used. * Select a uni-pump that has a pressure and flow rate that is within the range of the drive so that the drive will not overload. * When the startup current of the uni-pump becomes higher for the 1 motor, breakers may need to be changed..kw is not changed from 1. A S otor rating plate Rotation direction plate (ame sticker) T View R: ounting foot hole shape ( locations) USV-A-A*-1.-- Suction port Rc1/ Pump model (nameplate) 1 (Round drain hole) ischarge port Rc/ Terminal box terminal -. (The height to the topmost part of the hanging bolt) adjusting screw 1 AX.1 AX. rain port Rc1/ low rate adjusting screw 1. anging bolt R A otor rating plate S Rotation direction plate (ame sticker) T View R: ounting foot hole shape ( locations) USV-A-A1-.-- otor imensions [mm] A S T rame o. utput Weight kw kg ( poles) USV-A-A-.-- USV-A-A-.-- USV-A-A USV-A-A-.7-- USV-A-A-.7-- USV-A-A * See page A-1 for the characteristics of the drive motor for the unipump (domestic standard rating). * The.kW drive motor does not have hanging bolts. -