Synchronous Motors 1FK7
Configuration Manual, (PFK7S), Edition 12.2006, 6SN1197-0AD16-0BP1
191
Gearbox
9
Note
All page numbers shown in the selection and ordering data tables and the technical data
tables refer to catalog D21.1.
9.1 Dimensioning the gearbox
9.1.1 Overview
• If the gearbox oil is in contact with the motor flange, then suitable shaft and flange seals
must be selected.
• Technical data should be obtained from the catalogs of the gearbox manufacturers and
similar sources.
• The following influencing parameters should be taken into consideration:
– acceleration torque, permanent torque, number of cycles, cycle type, permissible input
speed, mounting position, torsional backlash, torsional stiffness, and radial and axial
forces.
– Worm gearboxes are only conditionally suitable for reversing operation with servo
applications.
9.1.2 Dimensioning for S3 duty for non-ventilated systems
When engineering geared drive systems you can use the motor characteristic without
reduction. Please note the permissible maximum torque and the permissible gearbox input
speed.
M
Mot
= M
out
/ (i ∙ η
G
)
The motor and gearbox are assigned as follows: M
max, gear
≥ M
0 (100K)
∙ i ∙ f
M
max, gear
Max. permissible drive torque
M
0 (100K)
Motor static torque
i Gear ratio
f Supplementary factor f = f
1
∙ f
2
f
1
= 2 for motor accelerating torque
f
2
= 1 for ≤1000 gearbox switching cycles / h
f
2
> 1 for > 1000 switching cycles / h (refer to the gearbox catalog)
e.g. f
2
= 1.5 for 3000 switching cycles / h
f
2
= 1.8 for 5000 switching cycles / h
f
2
= 2.0 for 8000 switching cycles / h
To Next Page
Loading...
