Gearbox boosts efficiency
March 1st 2008 When Thames Water
needed to replace an old
gearbox on a picket fence
thickener sludge tank at its
White Walham sewage
treatment works in Slough,
it called on Brammer to
provide an efficient solution.
An old double reduction
worm gearbox had a single
v-belt running from the
motor to the gearbox and
was inefficient – running at
60% capacity. The V-belt
was also being used as a
torque limiter on the unit
which meant that if the tank
paddle jammed, the belt
would slip and shred
requiring time-intensive
mechanical work.
Taking lifetime costs into
account, Brammer, in
conjunction with Brevini
Gearboxes, identified a
standard planetary gearbox
with torque limiter as a
suitable solution.
The new gearbox has
increased efficiency to 95%.
The integral torque limiter
means that if the tank
paddle jams, the torque
limiter will trip and will
simply need resetting –
providing time and cost
savings.
The gearbox can be
removed without the need
to drain the tank and pay
for scaffolding. More articles from BSL Brammer UK Ltd: | 
