Selection criteria
S
E
LECT
ING CRI
T
ERIA
Asyn
ch
ronou
s
sp
indl
e mo
to
r an
d se
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d
rive selectio
n
5.
213
DDS
HARDWARE
Ref.1310
In the case of a drill, the bit is mounted on the spindle itself and turns with
this to drill the material. See figure
The power required in this case
Pd
may be calculated with the following
formula:
In the event of governing a
gravitational load
, the power required de-
pends very much on the presence on absence of balance weights (crane
or elevator).
See figure
The power required in this case,
P
GL
and
P
GLC
may be calculated as fol-
lows:
Governing a
frictional load
, this is the case of horizontal movements
such as a conveyor belt or a movable table, the required power depends
on the friction coefficient µ
.
See figure
.
F. H5/5
Drilling. Required power.
M
Drilling load torque in N·cm
n
Spindle turning speed in rpm
D
Hole diameter in mm
f
Feedrate in mm/min
d
Mechanical efficiency (varies from 0.7 to 0.85)
Sd
Cutting efficiency. Cutting volume per kilowatt every minute
(cm³/kW)/min
F. H5/6
Gravitational load. Required power.
V
Linear speed in m / min
Mechanical efficiency
m
L
Table mass in kg
m
C
Counterweight mass in kg
f
D
D
f
P
d
M· 2
·n
60·100·1000·
d
=
·D²·f
4·1000·S
d
·
d
(kW)
=
Drum
Load
Balance
weight
Motor
Speed
Drum
Load
Motor
Speed
P
GL
m
L
·V
6120·
=
(kW)
P
GLC
(m
L
-m
c
)·V
6120·
=
(kW)
Содержание DDS
Страница 1: ...DRIVE DDS Hardware manual Ref 1310...
Страница 6: ...I 6 DDS HARDWARE Ref 1310...
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Страница 16: ...16 Ref 1310 DDS HARDWARE...
Страница 30: ...1 DESCRIPTION 30 Description DDS HARDWARE Ref 1310...
Страница 94: ...2 POWER SUPPLIES 94 Power supplies DDS HARDWARE Ref 1310...
Страница 188: ...3 DRIVE MODULES 188 Drive modules DDS HARDWARE Ref 1310...
Страница 204: ...4 AUXILIARY MODULES 204 Auxiliary modules DDS HARDWARE Ref 1310...
Страница 232: ...SELECTING CRITERIA 5 232 Selection criteria DDS HARDWARE Ref 1310...
Страница 266: ...7 CABLES 266 Cables DDS HARDWARE Ref 1310...
Страница 312: ...8 INSTALLATION 312 Installation DDS HARDWARE Ref 1310...
Страница 326: ...9 FUNCTIONAL SAFETY 326 Functional safety DDS HARDWARE Ref 1310...
Страница 354: ...10 CONNECTION DIAGRAMS 354 Connection diagrams DDS HARDWARE Ref 1310...
Страница 378: ...12 SALES REFERENCES 378 Sales references DDS HARDWARE Ref 1310...
Страница 384: ...13 COMPATIBILITY 384 Compatibility DDS HARDWARE Ref 1310...
Страница 385: ......