ROSTA
2.31
ROSTA
Oscillating Mountings and Accessories for
Customized Applications
Asymmetrical double rockers for high-speed shaker conveyors
To achieve highest material speed (up to 60 m/min) on shak-
er conveyors we recommend the installation of ROSTA double
rocker arms with
asymmetrical center distances
be-
tween the elastic suspensions (ratio 2 : 1). Usually, the eccen-
tric drive-input goes on the counter-mass frame which is con-
nected to the
shorter arm end
and therefore weighs 200%
of the upper feeding trough. The trough is connected to the
longer arm end
of the rocker. That is why it describes the
double stroke
in relation to the counter-mass. This gear
ratio offers a long material throw on the trough by low reac-
tion-force transmittance on the overall machine structure.
Please ask for our special application manual
asymmetric-
al double rockers.
Oversized drive heads for heavy-duty crank shaft driven shaker conveyors
The biggest standardized ROSTA drive head type
ST 80
is
laid out to transmit acceleration forces up to 27’000 N on
shaker troughs. For the actuation of e.g. heavy feeding hop-
pers or very long wood-waste shaker conveyors this capacity
is not sufficient.
For the actuation of very large crank shaft driven shaker con-
veyors ROSTA also supplys the drive heads type
ST 80-4
and
ST 100-5
with acceleration force capacities F of
36’000 N
respectively
63’000 N
per head. These two
heads are all made in steel welded construction and offer
instead of the usually centrical tapped bore a
box-shaped
holding fixture
for the drive rod (see drawing below).
These two drive heads are not available from stock and will
be manufactured only upon request (longer delivery time).
Oscillating Mountings