workpiece weight: 100 - 3.000 kg
workpiece length: 5.000
mm
diameter: 1.260 - 1.600 mm
Control: CAP920
total power
requirement: 11 kW
weight of the machine ca.: 20 t
dimensions
of the machine ca.: 20 Container m
Mobile balancing system SCHENCK
for use anywhere in the world
The balancing system is
permanently installed in a 20 open-top container.
The container is
equipped with everything you need for balancing
•
Lighting
• Metal base plate 12,000 kg as a base plate for
accuracy
• Compressor for working air supply distributed in the
container
• Compressed air connections.
• A
circumferential power strip
• A tool cabinet equipped with
tools
• A hydraulic lifting device for aligning the container
from the outside
• In addition to a tarpaulin for the roof, the
container also comes with
movable roof segments made of sheet
metal.
• The container has a central plug through which the
container can be connected
can be supplied with the required 380V
voltage.
The system has been approved by Schenck and test
protocols are available
On the following pages please find
the specification for
1 Schenck balancing machine, type HM
40/HM 20
U/BU with measuring unit CAB 920 SmartTouch
We
like to give you some technical comments to this balancing
machine.
This machine exists in its basic version of a HM 40 U/BU.
Additionally we are
offering a special pair of add. pedestals
type HM 20 which can be easily
exchanged against the HM 40
pedestals. The HM 20 pedestals will enable you to
accommodate
also small pump rotors into the machine.
The advantages are:
only one machine base and end and belt drive with one
electrical
control (space cost-saving)
The machine is installed in a open Top
20” Container as a safety enclosure.
(space and
cost-saving)
The HM 40/20 U/BU covers a wide range of rotor
types due to rotor weight,
dimension and balancing tolerances.
This may also require fiexibility in
balancing
speeds.
Therefore we have quoted the machine together with an
electrical drive with
squirrel cage motor with frequency
converter for variable speed.
The offered measuring unit CAB
920 is a computerized high-end unit and
especially developed to
fulfil advanced balancing tasks. Data input is
extremely simple
through the Easy Mode guiding the Operator perfectly.
Unbalance
visualization is realized by big vector meter displays on a high
contrast TFT colour monitor with touch screen function. The
integrated
Industrial PC runs the unique CAB 920 balancing
software and provides access to
the balancing Data for direct
printouts or via PC network. CAB 920 can be
adapted to specific
needs by additional software packages.
For quick and accurate
finding of the angular position of the measured
unbalance on the
rotor by using the belt-drive the software extension angle
indexing is included in the delivery extent of both measuring
units. When
reaching the correet unbalance angle it will be
displayed on the measuring unit.
Due to the method of
correction (grinding at a [arger surface area) the vector
indication is of advantage.
Machine mode: HM 40/20
U/BU
Year of manufacturing: 2012/2021
Manufacturing number:
RPHF02I7
Item Extent of delivery
Pair Bearing Pedestals HM
40
Rotor weight for symmetric bad 3000 kg
for each bearing
pedestal max. 1500 kg
Largest rotor diameter above machine bed
1600 mm
Distance between bearing centres (belt drive between
pedestals) min. 155
mm
upward static bearing loads for
counter bearing with roller 3000 N
Limit value of permanent
calibration 710 x 1 0E6 kg/min
1.1 1 Pair of Roller
Bearing lnserts HM 40
adjustable for journal bearing diameters
1.2
1 Pair of Roller Bearing Inserts HM 40
adjustable for journal
bearing diameters
1.3 1 Pair Bearing Pedestals HM 20
Rotor
weight for symmetric bad
for each bearing pedestal
max.
Largest rotor diameter above machine bed
Distance between
bearing centres (left drive between pedestals)
upward static
bearing loads for counter bearing with roller
Limit value of
permanent calibration
1 Pair of Roller Bearing
lnserts
adjustable for journal bearing diameters 9-70 mm
1
Pair of Roller Bearing lnserts
adjustable for journal bearing
diameters 70-140 mm
2 Set of counter bearings (Hold-down
bracket)
The balancing machine is equipped for safety reasons with
one set of counter
bearings size HM 40 and one set size HM 20 to
absorb upward bearing loads. The
counter bearings are hinged and
tHting out of the way for easy rotor loading
and unboading. Each
set is consisting of:
- 1 x counter bearing with roh (negative
bad bearing for overhanging rotors)
- 1 x counter bearing with
sliding piece
1.7 2 Axial thrust stops mounted on machine
base
Two axial thrust stops to be mounted on machine base for
babancing big rotors
in overhanging position.
2 1 Machine
Bed
with roller chain and two T-slots for moving the
pedestals
easily along the machine base
bed Iength in
total
consisting of 5.000 mm
1 x3000mm, 1
x2000mm
3 1 Measuring Unit
with: Operating
System Windows 10 loT Enterprise 2016 LTSB
- Direct data input
without keyboard via Touch-Screen-Display
- Easy Mode for
simplified data input and display of results
- Indication of the
result via big vectormeter and numerical displays
- Workshop tried
and tested industrial PC
- Easy data export via front side
USB
- Networking capability
- Optimized signal processing for
high accuracy via Schenck MMD-digital filter
- Intelligent
self-diagnostics of the measuring electronics
- Modular, service
friendly System design
- Operation using Windows standard
procedures
- Measurement of dynamic, static and couple
unbalance
- Optimised menu functions
- Rotorfile Wizard
-
Possibility to connect drawings or instructions to rotor files
-
User level administration with individual profiles
- Numerous
software modules available
- mcl. Software Tolerance Calculation
to [SO 21940-11
- mcl. single, key- and index compensation
-
mdl. measurement during S5145028 run-up
- Advanced print
manager
- Log report in pdf format
- Archiving in measurement
value database in MS-Excel compatible format
- User dialog can be
selected between English/German
Measuring range
100 – 5000 rpm
Minimum achievable residual
unbalance (Umar)
acc. ISO 2953 for each plane per kg rotor
weight
with belt-drive 0.1 gmm/kg
with end-drive 0.5
gmm/kg
but for HM 20 pedestals not less than 0.8 gmm
but
for HM 40 pedestals not less than 4.0 gmm
Value refers to the
measuring speed of 1000 rpm
Unbalance reduction ratio (URR)
up to 95%
3.1 1 Indexing manually
to exactly
transfer the measured unbalance angle to the rotor (manual
indexing).
3.2 1 Software Rotorspecific
Calibration
Our optional Rotor Specific Calibration software
allows a fine tuning of the
machine to compensate for balancing
tooling whose dynamic stiffness is
insufficient. The Rotor
Specific Calibration software will improve the ability
to
transpose the bearing plane measurements to the correction planes
(plane
separation). Rotor Specific Calibration should be used
when a ]arge cross
effect is noted between correction planes
separated by a small distance.
Rotor Specific Calibration is also
useful when the result of rotor weight and
balance speed
approaches or slightly exceeds the weight-speed squared (Wn2)
rating of the machine, or when the rotor deforms while balancing
(e.g., fan
blades with variable pitch). Balancing machines
employing offset roller
bearings, which significantly affect the
stiffness of the support bearing
system, will also benefit from
the employment of Rotor Specific Calibration.
4 1 End
Drive U2
Drive power 7.5 kW
Balancing speed 1. gear 60 - 580
rpm
Balancing speed 2. gear 110- 1120 rpm
Drive shafts Drive
Shaft 250 Nm , Drive Shaft 80 Nm
4.1 1 Rotor locking
device - end drive
4.2 1 Belt drive BU 4/5
Drive power
7.5 kW
Belt driven diameter 20 - 600 mm
Balancing speeds
based upon 100 mm belt driven diameter:
140- 1460 rpm, 200-2000
rpm, 350 - 3640 rpm
4.3 1 Rotor locking device - belt
drive
5 1 Electrical drive and control
for variable
balancing speed, consisting of:
control cabinet prepared for
installation of the measuring unit with:
- frequency
converter for speed setting range 1 : 10 and energetic
recovery system
- operation devices and
contactors
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oHG.
