Series Variable Displacement Piston Pump

Transcription

1 AH Series Variable Displacement Piston Pump AH AH7 AH AH45 KS Geometric Displacement Max. Operating Series Graphic cm 3 /rev Pres. Page Symbol MPa {kgf/cm 2 } AH-F-R--K-S- AH AH45-F-R--K-S- AH AH7-F-R--K-S- AH 3.9 {35} A-4 AH-F-R--K-S- AH A-37

2 . Hydraulic Fluids Hydraulic Fluids for A series Variable Displacement Piston Pump Equivalent to ISO VG32 or VG46 clean petroleum-based hydraulic fluid viscosity ~ 4mm 2 /s {cst} and use oil to meet the temperature range of ~ 6 2. Control of Contamination Due caution must be paid to maintaining control contamination of the operating oil which can otherwise to breakdowns and shorten the life of the unit. Please maintain the degree of contamination within NAS Grade. The suction port must be equipped with at least a μm mesh) reservoir type filter and the return line must have a filter of under μm.. Mounting Please take notice that when use the AH series Variable Displacement Piston Pump Equivalent to ISO VG32 or VG46 clean petroleum-based hydraulic fluid viscosity ~ 4mm 2 /s {cst} and use oil to meet the temperature range of ~ 6 2. Alignment of Shaft Employ a flexible coupling whenever possible, and avoid any stress from bending or thrust. Maximum permissible misalignment is less than. mm TIR and maximum permissible mis-angle is less than.2 3. Suction Pressure Permissible suction pressure at inlet port of the pump is between -6 and +5 kpa. For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used. Make sure that the height of the pump suction port is within one metre from the oil level in the reservoir. 4. Hints on Piping When using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise. Whenever there is fear of excessive load, please use rubber hoses. 5. Suction Piping In case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line. 6. Drain Piping Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than. MPa and surge pressure of less than.5 Mpa. Length of piping should be less than m, and the pipe end should be submerged in oil. In case AR6 and AR22 pump, a screw-in torque of fitting is 4 to 5 Nm. Do not apply bending and thrust torque to the fitting. [Drain Piping Size] Model Fitting Size AH M8 X P.5 AH45 M22 X P.5 AH7 M22 X P.5 AH M27 X P2. A-38

3 PISTON PUMPS 7. Bleeding Air It may be necessary to bleed air from pump case and outlet line to remove causes of vibration. An air bleed valve (Model No. ST4- - ) is recommended for this purpose. 8. Starting Before first starting, fill pump case with clean operating oil via the fill port. In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the tank or the actuator moves in a free load. 9. Setting Discharge Pressure and Delivery AH SERIES At the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure Adjust the preset delivery and pressure to meet your system requirements. [Adjustment of Pressure] [Adjustment of Delivery] Turning the adjustment screw clockwise, increases pressure. Volume adjusted by each full turn of the pressure adjustment screw. Turning the delivery adjustment screw clockwise, decreases delivery. The minimum adjustable flow and adjustable volume of each full turn of the delivery adjustment screw. [Volume adjusted by each full turn of the pressure adjustment screw] [The minimum adjustable flow and adjustable volume of each full turn of the delivery adjustment screw] Model Numbers Adjustable pressure with each full turn of the adjustment screw MPa {kgf/cm 2 } Model Numbers Adjustable volume with each full turn of the adjustment screw cm 3 /rev Minimum adjustment flow cm 3 /rev AH AH AH45 AH {56.4} AH7 AH AH AH A-39

4 AH Series Variable Displacement Piston Pump Feature High Pressure Nominal Pressure : 27.5 MPa { kgf/cm 2 } High Rotation Max. 3 r/min {rpm} (AH) Max Pressure : 3.9 MPa {35 kgf/cm 2 } Peak Pressure : 34.3 MPa {35 kgf/cm 2 } Max. 26 r/min {rpm} (AH45) In time, the percentage of load within 5 seconds 3.9 MPa {35 Max. 2 r/min {rpm} (AH7) kgf/cm2} can be applied to the areas. Return Guide Inflow discharge pressure control returns to the guide structure has been improved. Max. r/min {rpm} (AH) Yoke Support High Power Journal Bearing Compared to the conventional swash plate bearing support system increases the rigidity of the housing and at the same time be significantly reduced by the noise. With the use of high-strength brass was gay and abrasion resistance is improved. Pressure Compensator Valve Orifice pressure compensated control valve mounted in the circuit change and a full cut-off time has been improved durability by minimizing Shock. A-4

5 PISTON PUMPS A H Series Variable Displacement Piston Pumps - KS Graphic Symbol AH SERIES Ratings Model Numbers Geometric Displacement cm 3 /rev Minimum Adj. Flow cm 3 /rev Rated Operating Pres. MPa{kgf/cm 2 } Intermittent Shaft Speed Range r/min{rpm} Operating Max Mass. kg AH-F-R--K-S {} 3.9 {35} AH45-F-R--K-S {} 3.9 {35} AH7-F-R--K-S {} 3.9 {35} AH-F-R--K-S {} 3.9 {35} When you use beyond the rated pressure is limited to the terms of use. In time, the percentage of load within 5 seconds 3.9 MPa {35 kgf/cm 2 } can be applied to the areas to. This condition is different depending on the environment of use, please contact SMC for details. 2. Speed up to the suction port pressure kpa { kgf/cm 2 } revolutions is one of the. Model Number Designation AH -F -R - -K -S - Series Number Mounting Direction of Rotation Pres.Adg.Range Control Type Direction of Piping Design Number MPa{kgf/cm 2 } AH(cm 3 /rev) AH45(45cm 3 /rev) AH7(7cm 3 /rev) AH(.3cm 3 /rev) F : Flange Mtg. (Viewed from Shaft End) R : Clockwise (Standard) : Pressure Compensator K : 7 ~ 3.9 {7.4 ~ 35} S : Side Port. Available to supply pump with anti-clockwise rotation. Consult Sewon for details. Pipe Flange Kits This pump does not include the port flange. When using the flange if you need to produce a separate table below. Pump Model Numbers Name of Port Port Specifications AH-F-R--K-S- AH45-F-R--K-S- AH7-F-R--K-S- AH-F-R--K-S- Suction Discharge Suction Discharge Suction Discharge Suction Discharge SAE /4 SAE 3/4 SAE /2 SAE SAE 2 SAE, SAE /4 SAE 2 /2 SAE /4 A-4

6 Response Characteristics Response Characteristics Change in Accordance with Circuits and Operating Conditions. Test Circuit and Conditions Result of Measurement Circuit t t2 High Pressure Rubber Hose /4 B X mm Ps Pressre 27.5 MPa {kgf/cm 2 } 2 MPa {.4kgf/cm 2 } Time 2 MPa {.4kgf/cm 2 } SOL OFF ON OFF Conditions Drive Speed: 5 r/min{rpm} Model Response Time ms Overshoot Pressure Ps Hydraulic Fluid : ISO VG 32 oil t t2 MPa {kgf/cm 2 } Temperature : 4 (Viscosity 32 mm 2 /s {cst}) AH 9.8 {} AH {} AH {} AH {4} A-42

7 PISTON PUMPS AH Characteristics Typical performance characteristics at vicosity 32mm 2 /s(iso VG 32 Oil, 5 ) Output Flow 8 Input Power 4 3 AH SERIES Output Flow [Ipm] 6 4 Input Power [KW] 5 {5} {.2} 5 {53} {4} {5} {6} 5 {5} {.2} 5 {53} {4} {5} {6} Noise Level Drain Noise Level [db] Drain[Ipm] {5} {.2} 5 {53} {4} {5} {6} 5 {5} {.2} 5 {53} {4} {5} {6} A-43

8 AH 45 Characteristics Typical performance characteristics at vicosity 32mm 2 /s(iso VG 32 Oil, 5 ) Output Flow Input Power 6 5 Output Flow [Ipm] 8 6 Input Power [KW] {5} {.2} 5 {53} {4} {5} {6} 5 {5} {.2} 5 {53} {4} {5} {6} Noise Level Drain Noise Level [db] 6 4 Drain[Ipm] {5} {.2} 5 {53} {4} {5} {6} 5 {5} {.2} 5 {53} {4} {5} {6} A-44

9 PISTON PUMPS AH 7 Characteristics Typical performance characteristics at vicosity 32mm 2 /s(iso VG 32 Oil, 5 ) Output Flow 6 4 Input Power AH SERIES Output Flow [Ipm] 8 6 Input Power [KW] {5} {.2} 5 {53} {4} {5} {6} 5 {5} {.2} 5 {53} {4} {5} {6} Noise Level Drain Noise Level [db] 6 4 Drain[Ipm] {5} {.2} 5 {53} {4} {5} {6} 5 {5} {.2} 5 {53} {4} {5} {6} A-45

10 AH Characteristics Typical performance characteristics at vicosity 32mm 2 /s(iso VG 32 Oil, 5 ) Output Flow Input Power Output Flow [Ipm] 8 4 Input Power [KW] 5 {5} {.2} 5 {53} {4} {5} {6} 5 {5} {.2} 5 {53} {4} {5} {6} Noise Level Drain Noise Level [db] 6 4 Drain[Ipm] {5} {.2} 5 {53} {4} {5} {6} 5 {5} {.2} 5 {53} {4} {5} {6} A-46

11 PISTON PUMPS AH-F-R--K-S- (Flange Mtg.) AH SERIES AH45-F-R--K-S- (Flange Mtg.) AH7-F-R--K-S- (Flange Mtg.) A-47

12 AH-F-R--K-S- (Flange Mtg.) A-48

13 PISTON PUMPS Lis of Seals & Bearings AH/45/7-F-R--K-S-! CAUTION When making replacement of seals or bearing, please do it carefully after reading through the relevant instructions in the Operator's Manual. AH-F-R--K-S- AH SERIES AH/45/7/-F-R--K-S- No. Part List Part Numbers AH AH45 AH7 AH Qty. Seal Washer W (X8X.2) 2 SO-NB-P7 3 SO-NB-P24 4 SO-NB-P7 5 Back-up Ring SO-BB-P7 6 SO-NA-S8 3 7 SO-NA-P5A SO-NA-P6 SO-NA-P7 SO-NA-P8 8 SO-NA-S5 SO-NA-A65 SO-NA-A7 SO-NA-A72 9 JASO-3A JASO-5A JASO-7A JASO-9A 4 SO-NA-P SO-NA-P SO-NA-P3 SO-NB-P6 2 Back-up Ring SO-BB-P6 3 Bearing NUP 6E NUP 6E NUP8E NUP 2E 4 Oil-Seal AP338F AP563J4 AP85G TCN AP Bearing HMK 3 HMK 3 HMK33 HMK SO-NB-P24 SO-NB-P24 SO-NB-P24 SO-NB-P24 A-49