Transcript Tagesordnung

Getriebemotoren \ Antriebselektronik \ Antriebsautomatisierung \ Services
1
Application: Port Machinery
Main Hoist for STS
Helical
Type
Qty/crane
Shaft position
Ratio
Motor power
Max.motor power
Motor speed
Max.motor speed
Motor torque
Classification FEM
Radial force
Bearing lifetime
Total shaft CD
LSS
HSS
Peak load
ambient temperature
gear housing
Industrial Gears.10.2002
2
124
21.3
kW
510
kW
1.4 x
rpm
650
rpm
1460
Nm
7500
T7/L3/M8
HSS
32 kN
LSS
87.5 kN (60°up)
hrs
25,000
mm
1240
solid
solid
kNm
300
-25°~+40°C
steel welded horizontal split
3 point support
Gear Selection Examples
Motor can be over-loaded for a short
to 140% ~ 160% during acceleration
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Application: Port Machinery
SELECTION OF MECHANICAL DRIVES ACCORDING TO GEARBOX NOMINAL POWER
Service factor FS selection table
Class of utilization
T0
L3
Heavy
T4
T5
T6
T7
T8
Mech. gr.
M1
M1
M1
M2
M3
M4
M5
M6
M7
FS 2)
0.80
0.80
0.80
0.80
0.85
0.85
0.95
1.00
1.10
Travelling
FS 1)
1.10
1.10
1.10
1.10
1.20
1.20
1.35
1.40
1.60
Hoisting
FF 2)
1.00
1.00
1.00
1.00
1.00
1.10
1.20
1.30
1.50
FF 1)
1.40
1.40
1.40
1.40
1.40
1.60
1.70
1.90
2.10
Mech. gr.
M1
M1
M2
M3
M4
M5
M6
M7
M8
Hoisting
FS 2)
0.85
0.85
0.90
0.95
0.95
1.00
1.10
1.20
1.30
Travelling
FS 1)
1.20
1.20
1.30
1.35
1.35
1.40
1.60
1.70
1.85
Hoisting
FF 2)
1.00
1.00
1.00
1.00
1.10
1.20
1.30
1.50
1.75
Travelling
FF 1)
1.40
1.40
1.40
1.40
1.60
1.70
1.90
2.10
2.50
Mech. gr.
M1
M2
M3
M4
M5
M6
M7
M8
M8
Hoisting
FS 2)
0.95
1.00
1.05
1.05
1.10
1.20
1.30
1.40
1.55
Travelling
FS 1)
1.35
1.40
1.50
1.50
1.60
1.70
1.85
2.00
2.00
Hoisting
FF 2)
1.00
1.00
1.00
1.10
1.20
1.30
1.50
1.75
2.00
Travelling
FF 1)
1.40
1.40
1.40
1.60
1.70
1.90
2.10
2.50
2.50
Mech. gr.
M2
M3
M4
M5
M6
M7
M8
M8
M8
L4
Very heavy Hoisting
Travelling
Hoisting
Travelling
Industrial Gears.10.2002
T3
Hoisting
Travelling
L2
Moderate
T2
Total duration of use (hours) (up to)
200
400
800
1,600
3,200
6,300
12,500
25,000
50,000
Maximum number of operating cycles (corresponds to total duration of use)
16,000
32,000
63,000
125,000
250,000
500,000 1,000,000 2,000,000 4,000,000
Load spectrum class
L1
Light
T1
FS 2)
1.05
1.10
1.15
1.15
1.20
1.30
1.40
1.60
1.80
FS 1)
1.50
1.55
1.65
1.65
1.70
1.85
2.00
2.00
2.00
FF 2)
1.00
1.00
1.10
1.20
1.30
1.50
1.75
2.00
2.00
FF 1)
1.40
1.40
1.60
1.70
1.90
2.10
2.50
2.50
2.50
Mech. gr. = Mechanism group (M)
1) FS/FF values for Travelling and traversing include already the effect of reversing load
2) FS/FF values for Hoisting are valid only for NON reversible load
FS values are for normal operating load (motor power/normal running power)
FF values are for peak load operation. The selection must be checked always against peak load conditions.
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Application: Port Machinery
3.1. Crane Series / Standard
Type
3C450NE-1000
3C475NE-1055
3C500NE-1110
3C530NE-1180
3C560NE-1240
3C595NE-1320
3C630NE-1400
3C670NE-1485
3C710NE-1570
3C755NE-1665
3C800NE-1760
3C850NE-1870
3C900NE-1980
Industrial Gears.10.2002
3rd
stage
450
475
500
530
560
595
630
670
710
755
800
850
900
2nd
stage
320
340
360
380
400
425
450
475
500
530
560
595
630
1st
stage
230
240
250
270
280
300
320
340
360
380
400
425
450
Total
in mm
1000
1055
1110
1180
1240
1320
1400
1485
1570
1665
1760
1870
1980
Mn2/kNm
170
200
230
265
305
355
410
470
540
620
710
805
910
Remark!
These values
and all the
information can
be used only as
a guideline!
Every special
hoist drive unit
(main hoist or
boom hoist) will
be calculated
separately by
SEW IG !
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Application: Port Machinery
Gear Selection Examples
FEM gives FS2 =1.4 , FF2 =1.75
Mk2 = 510 x 9550 x 21.3 / 650 = 159 kNm
MN2 >= Mk2 x FS = 159 kNm x 1.4 = 223 kNm
---> size 560, ratio = 21.3 ---> 3 stages
---> 3C560NE-1240 gives actual MN2 = 305 kNm
The gearbox is able to take a short time load of 2 x PN1. therefore it is important to
check the peak load conditions.
Mk2 (peak) = 300 kNm
2 x MN2 >= Mk2 (peak) x FF2
2 x 305 kNm > 300 x 1.75 kNm, 610 kNm > 300 x 525 kNm ---> OK
Radial load must be checked with Henw calculation separately by designer. There may
need to modify the bearing size, which in turns change some of the shaft dimension in
each case.
Industrial Gears.10.2002
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