Bosch Rexroth GTM Series, Project Planning Manual

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Planetary Gearboxes Dimensioning and selection
4-1
DOK-GEAR**-GTM********-PR01-EN-P
4 Dimensioning and selection
4.1 Dimensioning
Applications for GTM planetary gearboxes are characterized by the
following curves:
•
Triangular speed curve with pause interval
•
Operation with constant speed and pause interval
•
Operation with trapezoidal speed curve and pause interval
•
Continuous operation (S1)
The speed-time curves define the dimension criteria.
This operation is characteristic for all highly-dynamic feeds. These are
often found in roll-feed mechanisms in the sheet metal, paper, plastic and
packaging industries.
Time t
Speed v
GK000002v01_en.EPS
Fig. 4-1: Trianglare operation
The dimensioning of this operation is mainly made according to the
necessary maximum torque M
max
and the effective torque M
eff
.
This operation is characteristic for all highly-dynamic feeds. These are
often found in winding machines, drive rolls and in portioning devices in
the sheet-metal, paper, plastic or packaging industries.
Time t
Speed v
resp. rotation speed n
GK000003v01_en.EPS
Fig. 4-2: Operation with constant speed with pause intervals
The dimensioning of this operational mode is mainly made according to
the necessary continuous torque M
dN
and the average velocity V
mittle
or
the mean speed n
mittel
.
Triangle operation with pause
interval
Constant speed with pause
interval