A16-F-R-00-H-S-K-A200-32408柱塞泵资料.pdf - 第3页

27 PIST ON PUMPS A Series A Series V ariable Displacement Piston Pumps Starting Before first staring, fill pump case with clean operating oil via the filling port. In order to avoid air blockage when first starting, adju…

Series Variable Displacement Piston Pumps

Hydraulic Fluids

Hydraulic Fluids Control of Contamination

Use petroleum based oils such as anti-wear type hydraulic

oils equivalent to ISO VG-32 or 46. The recommended

viscosity range is from 20 to 400 mm

/s and temperature

range is from 0 to 60℃, both of which have to be satisfied

for the use of the above hydraulic oils.

Due caution must be paid to maintaining control over

contamination of the operating oil which can otherwise

lead to breakdowns and shorten the life of the unit.

Please maintain the degree of contamination within NAS

Grade 10.

The suction port must be equipped with at least a 100 μm

(150 mesh) reservoir type filter and the return line must

have a line type filter of under 10 μm.

Instructions

Mounting Drain Piping

When installing the pump the filling port should be

positioned upwards.

Alignment of Shaft

Employ a flexible coupling whenever possible, and avoid

any stress from bending or thrust.

Maximum permissible misalignment is less than 0.1 mm

TIR and maximum permissible misangular is less than

0.2°.

Suction Pressure

Permissible suction pressure at inlet port of the pump is

between -16.7 and +50 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.

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.

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.

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 0.1 MPa and surge pressure

of less than 0.5 MPa.

Length of piping should be less than 1 m, and the pipe end

should be submerged in oil.

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 Number ST1004-

-10

, Page 265) is

recommended for this purpose.

[Recommended Drain Piping Size]

Model Fitting Size

3/8

[Inside Dia. 8.5 mm or more]

Inside Dia. of Pipe

A10, A16, A22 10 mm or more

1/2

[Inside Dia. 12 mm or more]

12 mm or more

3/4

[Inside Dia. 16 mm or more]

19 mm or more

A37, A45

A56, A70, A90,

A100, A145

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.

PISTON PUMPS

A Series

Series Variable Displacement Piston Pumps

Starting

Before first staring, fill pump case with clean operating

oil via the filling 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 reservoir or the actuator

moves in a free load.

Setting Discharge Pressure and Delivery

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.

Turning the adjustment screw clockwise, increases

pressure.

Adjustment of Discharge Pressure

Volume adjusted by each full turn of the pressure

adjustment screw

Model

A10

A16/A22

A37/A45/A56

A70

A90/A100

A145

370

600

1200

2100

2500

3300

Volume cm

[Volume of Pre-fill Oil Required]

Turning the flow adjustment screw clockwise, decreases

delivery.

Adjustment of Delivery

The minimum adjustable flow and adjustable volume of

each full turn of the delivery adjustment screw

Model Numbers

A10-FR01B

A10-FR01C/H

A16/A22/A37/A56-

＊

-R-01-B

A16/A22/A37/A56-

＊

-R-01-C

A16/A37/A56-

＊

-R-01-H

A70/A90/A100/A145-

＊

-R01B

A70/A90/A100/A145-

＊

-R01C

A70/A90/A100/A145-

＊

-R01H

A70/A90/A100/A145-

＊

-R01K

2.9

5.4

3.5

6.5

7.9

2.3

3.2

4.0

4.7

Adjustment Volume

MPa

1.1

1.4

2.0

2.9

3.9

4.4

4.8

5.2

A10

A16

A22

A37

A56

A70

A90

A100

2.0

4.0

6.0

7.2A145 83

Model

Adjustable volume

with each full turn

of the adjustment

screw

cm /rev

Minimum adjustment flow

cm /rev

Series Variable Displacement Piston Pumps

“A16” type performance characteristics

OUT

Control Piston

Drain Port

Pivot

Shaft

Yoke

Swash Plate

Slipper Retainer

Spring, Yoke Return

Piston Ass'y

Cylinder Block

Port Plate

Flow Adj. Screw

Pressure Adj. Screw

Spool

Series Variable Displacement Piston Pumps

■ Features

● High efficiency

The efficiency properties in case of “A16”from are high

efficiencies to be shown below.

● Accomplishment of energy-saving

Because the overall efficiency is high and the cut-off

characteristics is sharp, thus the input power may be saved.

● Low noise level

In the “A16” pump, the noise level is as low as 57.3 dB(A)

[at the full cut-off pressure 21 MPa with speed 1500 r/min

one metre horizontally away from pump head cover.]

● Low heat generation

Because of small power loss, it is possible to reduce the rise

in oil temperature. Accordingly, capacity of a reservoir can

be reduced.

100

0 4 8 12 16 20

N＝1800r/min

N＝1500r/min

0 4 8 12 16 20 21

Volumetric Efficiency

Overall Efficiency

Output Flow

Input Power

Output Flow

L/min

Input Power kW

Pressure

MPa

Efficiency

Pressure MPa

Noise Level dB(A)

Full Cut-off