A16-F-R-00-H-S-K-A200-32408柱塞泵资料.pdf - 第59页

83 PIST ON PUMPS A Series A Series V ariable Displacement Piston Pumps “OBE” T ype Electro-Hydraulic Propor tional Pressure & Flow Control T ype ■ Specifications Model Numbers Descriptions A16 A22 A37 A56 A70 A90 A14…

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82
A
Series Variable Displacement Piston Pumps
“OBE” Type Electro-Hydraulic Proportional Pressure & Flow Control Type
A
Series Variable Displacement Piston Pumps,
“OBE” Type Electro-Hydraulic Proportional Pressure & Flow Control Type
Tilt Angle Sensor
Bias Piston
Control
Piston
Control
Valve
Pressure
Sensor
Proportional Solenoid
Amplifier
Input Signal for
Flow Control
Input Signal for
Pressure Control
Safety valve
■ Performance
　 Characteristics
★1. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.
★2. Amplifier Compensation Number may differ according to the main machine conditions. Consult Yuken for detail.
2
1.
2.
Pressure
(S
Input Voltage L)
Output Flow
(S
Input Voltage L)
Unloading pressure when input
signal is 0 V.
Safety valve setting pressure
1
■ Model Number Designation
A70 -F R 04EH 16M R S -60 -61
Series Number Mounting
Direction of
Rotation
Control Type Pressure Control Level
Amplifier
Direction
Port Position
Compensation
Number
★2
Design
Number
A16
(15.8 cm
3
/rev)
F:
Flange
Mtg.
L:
Foot
Mtg.
Viewed
(
from Shaft
)
End
R:
Clockwise
★
1
(Normal)
04EH:
"OBE" Type
Proportional
Pressure &
Flow Control
Type
Control Pressure at Input
Signal is 5 V
(Refer to above Table)
——
None:
Axial Port
S:
Side Port
06 43
A22
(22.2 cm
3
/rev)
11 43
A37
(36.9 cm
3
/rev)
01 43
A56
(56.2 cm
3
/rev)
02 43
A70
(70.0 cm
3
/rev)
Viewed
(
from Shaft
)
End
R: Right
L: Left
S:
Side Port
60 61
A90
(91.0 cm
3
/rev)
60 61
A145
(145 cm
3
/rev)
60 61
■ Example of Specified Control Pressure
Control Pressure Symbol (EX.)
Control Pressure at
Input Signal is 5 V
kgf/cm
2
MPa
70 — 70 6.9
105 — 105 10.3
140 — 140 13.7
175 — 175 17.2
210 — 210 20.6
— 7M 71.4 7
— 16M 163.2 16
— 21M 214.2 21
GraphicSymbols
A70/A90/A145
A16/A22/A37/A56
83
PISTON PUMPS
A Series
A
Series Variable Displacement Piston Pumps
“OBE” Type Electro-Hydraulic Proportional Pressure & Flow Control Type
■ Specifications
Model Numbers
Descriptions
A16 A22 A37 A56 A70 A90 A145
Geometric Displacement cm
3
/rev 15.8 22.2 36.9 56.2 70.0 91.0 145.0
Operating Pressure MPa (PSI)
Rated
★2
16 16 16 16 25 25 25
Intermittent
★1
21 16 21 21 28 28 28
Shaft Speed Range r/min 600 - 1800
Flow
Control
Max. Flow
★2
L/min 28.4 40.0 66.4 101.2 126.0 163.0 261.0
Min. Pres. Required
for Flow Adj.
MPa 2.0
Hysteresis 1 % or less
Repeatability 1 % or less
Input Signal Max. Flow / 5 V DC
Pressure
Control
Min. Adjustment
Pressure
MPa 0.7
Hysteresis 1 % or less
Repeatability 1 % or less
Input Signal Specified Control Pressure / 5 V DC
Coil Resistance Ω [@ 20℃] 10
Input Impedance Flow Control : 10 kΩ Pres. Control : 10 kΩ
Supply Electric Power 24 V DC (21 - 28 V Included Ripple)
Power Input (Max.) W 30
Output Signal
Flow 5 V DC / Max. Flow
Pressure 5 V DC / Specified Control Pressure
Alarm Signal Output (Open Collector) Voltage : Max. 30 V DC Current : Max. 40 mA
Ambient Temperature ℃ 0 - 50 (With Circulated Air)
Mass kg
Flange Mtg. 20.7 20.7 32.2 39.2 64 76.5 98
Foot Mtg. 22.9 22.9 36.5 43.5 76 97 123
★1. Whenever setting pressure, make sure the full cut-off pressure never exceeds the maximum intermittent pressure.
★2. When operating the pump exceeding the rated pressure, operating conditions are restricted.
Refer to page 31 for the details.
★3. Maximum flow differs to shaft speed.
The value listed above indicates shaft speed of 1800 r/min.
For other shaft speed calculate by the ratio of shaft speed.
■ Pipe Flange Kits
For Pipe flange, refer to form of pressure compensator type on page 32.
■ Instructions
● Input Signal
The pump is on unload condition when the pump is operated without input signal voltage.
● Electric Source
Always turn off electric source whenever the connector for swash plate tilt angle sensor is removed.
● Compensation of Pump Maximum Regulated Flow at Frequency
If the same maximum flow is required at 50 Hz or 60 Hz, connect short plug in the amplifier to 60 Hz at the place where supplied
frequency is 60 Hz. At this condition, maximum flow comes to the same value at 50 Hz.
If short plug is used at 60 Hz without making the change, maximum flow increased in proportion to frequency.
● Painting on Amp. Box and Solenoiod
To maintain suitable radiation effect, the amp. box and the solenoid of the control valve should not be painted.
84
A
Series Variable Displacement Piston Pumps
“OBE” Type Electro-Hydraulic Proportional Pressure & Flow Control Type
A＊-＊R04EH28M
A＊-＊R04EH20M
A＊-＊R04EH16M
A＊-＊R04EH8M
NOTE:｛kgf/cm
2
｝isreferenceonly.
3
Input Signal
V DC
4
8
0
21
54
1
0
4
8
32 4 5
28
20
16
24
12
20
16
12
28
24
Full Cut-off Pressure
MPa
Full Cut-off Pressure
MPa
Input Signal
V DC
0 1 2 3
Input Signal
V DC
Input Signal
V DC
54
1 2 3 54
123 54
1 32 54
1 2 3 54
1 2 3 54
1 2 3 54
Output Flow
L/min
Input Signal
V DC
Input Signal
V DC
Input Signal
V DC
Input Signal
V DC
Input Signal
V DC
8
16
24
32
Output Flow
L/min
10
0
20
30
45
40
20
0
40
60
80
Output Flow
L/min
Output Flow
L/min
40
0
200
280
80
120
160
240
Output Flow
L/min
25
0
125
50
75
100
175
150
Output Flow
L/min
25
0
125
50
75
100
150
20
0
100
40
60
80
120
Output Flow
L/min
1800 r/min
1500 r/min
1800 r/min
1500 r/min
1800 r/min
1500 r/min
1800 r/min
1500 r/min
1800 r/min
1500 r/min
1800 r/min
1500 r/min
1800 r/min
1500 r/min
●A16
●A56
●A70
●A90
●A145
●A22
●A37
A＊-＊R04EH280
A＊-＊R04EH200
A＊-＊R04EH80
A＊-＊R04EH160
7.8MPa
｛80kgf/cm
2
｝
19.6MPa
15.7MPa
｛160kgf/cm
2
｝
｛200kgf/cm
2
｝
27.5MPa
｛280kgf/cm
2
｝
■ Output Flow vs. Input Signal
■ Full Cut-off Pres. vs. Input Signal
Note: Pump characteristics at 1800 r/min is the same as those at 1500 r/min
where frequency is compensated.
(Refer to page 74.)
Refer to page 35 to 42 for performance characteristics of
pressure compensator type excluding characteristics
appeared on this catalogue.