HBM T10F KF1 User manual

B 23.T10F.90 en
Torque
Flange
T10F
Operating manual
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Contents Page
Safety instructions 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Versions of the torque flange 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Application 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Design and function 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Mechanicalinstallation 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Conditions at the site of installation 12. . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Mounting position 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Installation options 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 Installation with complete antenna ring 13. . . . . . . . . . . . . . . . . . . . . . .
4.3.2 Installation with subsequent stator mounting 14. . . . . . . . . . . . . . . . . .
4.3.3 Installation example with couplings 15. . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.4 Installation example with cardan shaft 15. . . . . . . . . . . . . . . . . . . . . . . .
4.4 Installing the rotor 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 Installing the stator B 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6 Clamping piece assembly 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7 Installing the slotted disc (speed measuring system) 23. . . . . . . . . . .
4.8 Aligning the stator (speed measuring system) 24. . . . . . . . . . . . . . . . .
5 Electrical connection 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Shielding design 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Option 2, code KF1 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.1 Adapting to the cable length 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Option 2, code SF1/SU2 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Supply voltage 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Calibration 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Calibration option 2, code KF1 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Calibration option 2, code SF1/SU2 32. . . . . . . . . . . . . . . . . . . . . . . . . .
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7 Settings 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Torque output signal, code KF1 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Torque output signal, code SF1/SU2 34. . . . . . . . . . . . . . . . . . . . . . . . .
7.3 Setting up zero point 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4 Functional testing 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4.1 Power transmission 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4.2 Aligning the speed module 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5 Setting up the number of pulses 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6 Oscillation suppression (hysteresis) 38. . . . . . . . . . . . . . . . . . . . . . . . . .
7.7 Form of the speed output signal 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.8 Type of rotation speed output signal 40. . . . . . . . . . . . . . . . . . . . . . . . . .
8 Loading capacity 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Measuring dynamic torques 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Maintenance 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1 Maintenanceof the speed module 43. . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Dimensions 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1 Rotor dimensions 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.2 Dimensions stator B 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3 Mounting dimensions 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Order numbers, accessories 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 Technical data 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 Supplementary technical information 54. . . . . . . . . . . . . . . . . . . . . .
13.1 Output signals 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.1.1 Output MD for torque (connector 1) 54. . . . . . . . . . . . . . . . . . . . . . . . . . .
13.1.2 Output N for rotation speed (connector 2) 55. . . . . . . . . . . . . . . . . . . . . .
13.1.3 Output for rotation speed, double frequency, static signal for direction of
rotation 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.2 Flatness and concentricity tolerances 57. . . . . . . . . . . . . . . . . . . . . . . .
13.3 Additional mechanical data 57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 Copy of declaration of conformity 58. . . . . . . . . . . . . . . . . . . . . . . . .
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Safety instructions
Appropriate use
The T10F Torque Flange may be used for torque-measurement and directly
related control and regulation tasks only. Any other use is not appropriate.
To ensure safe operation, the transducer may only be used according to the
specifications given in this manual. When using the transducer, the legal and
safety regulations for the respective application must also be observed. The
same applies if accessories are used.
The transducer is not a safety device in accordance with the regulations for
appropriate use. For correct and safe operation of this transducer it is
essential to ensure technically correct transportation, storage, installation and
fitting, and to operate all equipment with care.
General dangers in the case of non–observance of the safety
instructions
The transducer complies with the state of the art and is operationally reliable.
If the transducer is used and operated inappropriately by untrained personnel,
residual dangers may arise.
Anyone responsible for installing, operating, maintaining or repairing this
transducer must be sure to have read and understood the operating manual
and in particular the notes on safety.
Residual dangers
The scope of performance and supply of this transducer covers only part of
the torque measurement technology. In addition, those involved in planning,
constructing and operating the safety engineering aspects of torque
measurement technology must design, produce and take responsibility for
such measures in order to minimise potential residual dangers. Prevailing
regulations must be complied with at all times. There must be a clear
reference to the residual dangers connected with measurement technology.
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In this manual, the following symbols are used to refer to residual dangers:
Symbol: DANGER
Meaning: Maximum danger level
Warns of an imminently dangerous situation in which failure to comply with
safety requirements will result in death or serious physical injury.
Symbol: WARNING
Meaning: Dangerous situation
Warns of a potentially dangerous situation in which failure to comply with
safety requirements can result in death or serious physical injury.
Symbol: CAUTION
Meaning: Potentially dangerous situation
Warns of a potentially dangerous situation in which failure to comply with
safety requirements could result in damage to property or some form of
physical injury.
Symbol: NOTE
Means that important information about the product or its handling is being
given.
Symbol:
Meaning: CE mark
The CE mark enables the manufacturer to guarantee that the product
complies with the requirements of the relevant EC guidelines (see Declaration
of Conformity at the end of these Mounting Instructions).
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Reconstruction and modifications
HBM’s express consent is required for modifications affecting the transducer’s
construction and safety. HBM does not take responsibility for damage
resulting from unauthorised modifications.
Qualified personnel
The transducer may be used by qualified personnel only; the technical data
and the special safety regulations must be observed in all cases. When using
the transducer, the legal and safety regulations for the respective application
must also be observed. The same applies if accessories are used.
Qualified personnel means: personnel familiar with the installation, fitting,
start–up and operation of the product, and trained according to their job.
Prevention of accidents
According to prevailing accident prevention regulations, after fitting the T10F
torque transducers a cover must be fitted as follows:
•The cover must not be able rotate.
•The cover shall protect against crushing or cutting and provide protection
against parts that might come loose.
•The cover shall be installed at a safe distance from moving parts or shall
prevent anyone putting their hand inside.
•The cover shall even be fitted if the moving parts are installed in areas to
which persons do not usually have access.
The above regulations may only be disregarded if machine parts are already
sufficiently protected owing to the design of the machine or because other
precautions have been taken.
Guarantee
In the event of a claim, the guarantee can only be considered if the torque
flange is returned in its original packing.
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1 Versions of the torque flange
In the case of option 2 “Electrical Configuration”, the T10F torque flange is
available in versions KF1, SF1 and SU2. These versions differ in their
electrical inputs and outputs to the stator. The rotors are the same for all
measuring range versions. Versions SF1 and SU2 can be optionally fitted with
a speed measuring system.
Torque and rotation speed (optional)
SF1 SU2
Measured
quantity
Version
Power supply
Output signal
Attachable to
HBM
measurement
electronics
Excitation voltage
54 VPP/14 kHz;
square–wave
Torque
KF1
Connection
cable
Supply voltage 18 V...30 V DC
Seperated extra–low voltage (SELV circuit)
Frequency
Excitation voltage generator in the torque flange
Frequency
V5, V6, W1, W2V1 ... V4
Excitation voltage
generator in HBM
electronics
Frequency
and
voltage
T10F
Fig. 1.1: T10F versions
You can see which version you have from the stator identification plate. The
version is shown by its “T10F–...”number.
For example: T10F–001R–SU2–S–0–V1–Y (see also page 47).
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2 Application
T10F Torque Flanges acquire static and dynamic torque data from static or
rotating shafts and determine rotation speed together with information on the
direction of rotation. Due to their extremely short design they enable very
compact test arrangements to be used. They offer a very wide range of
applications.
In addition to conventional test-rig applications (motor, roller and gear
test-rigs) new solutions are possible for torque measurements partly
integrated into the machines. Here you benefit from the special characteristics
of the T10F Torque Flange:
•Extremely short design due to flange measuring–body
•High permissible dynamic loads
•High permissible transverse forces and bending moments
•Very high torsional stiffness
•No bearings, no slip-rings
Due to their construction without bearings and the contact–free transmission
of excitation voltage and measurement, torque flanges are maintenance–free.
Thus, frictional or thermal effects on the bearings can be excluded.
The torque flanges are supplied for nominal (rated) torques from 50 N⋅m up to
10 kN⋅m. Depending on the nominal torque, maximum speeds of up to
15,000 rpm are permissible.
T10F Torque Flanges are protected from electromagnetic interference. They
have been tested with regard to EMC according to the relevant European
standards, and carry the CE mark.
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3 Design and function
Torque flanges consist of two separate parts: the rotor and the stator. The
rotor includes the measuring body and the adapter flange.
Strain gauges have been mounted on the measuring body. The rotor
electronics for transmitting the bridge excitation voltage and measuring signal
are located centrally on the flange. The top surface of the measuring body
supports the transmitter coils for contact–free transmission of excitation
voltage and measuring signal. The signals are transmitted and received by a
divisible antenna ring. The antenna ring is mounted on a housing that includes
the electronic system for voltage adaption and signal conditioning.
The stator includes connecting plugs for the torque signal, the power supply
and the rotation speed signal (optional). The antenna ring should be mounted
concentrically around the rotor (see chapter 4).
In the case of the option which includes a rotation speed measurement
system, the rotation speed sensor is mounted on the stator and the customer
fastens the associated slotted disc to the rotor. Rotation speed is measured
optically in accordance with the principle of infrared transmitted light barriers.
Stator Antenna segments
Rotor
Serrated locking
washers Measuring body Adapter flange (without slotted disc)
Housing
Rotation speed sensor (optional)
Fig. 3.1: Mechanical construction, exploded view
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4 Mechanical installation
WARNING
Handle the torque flange carefully. The transducer might suffer
permanent damage from mechanical shock (dropping), chemical effects
(e.g. acids, solvents) or thermal effects (hot air, steam).
Never slacken the screwed rotor joints marked with sealing varnish (the
hexagon-socket screws for the measuring body and adapter flange and
the slotted screws on the type plate).
With alternating loads, you should use a screw locking device (medium)
to glue the rotor connection-screws into the counter thread in order to
prevent slackening and loss of pre–tensioning.
T10F Torque Flanges can be fitted directly to an appropriate shaft flange. The
adapter flange enables direct mounting of a cardan shaft or corresponding
corrector elements (if necessary, via an intermediate flange). Never exceed
the permissible limits specified for bending moments or for transverse and
longitudinal forces. Due to the high torsional stiffness of the T10F torque
flange, dynamic changes on the shaft run are minimized.
CAUTION
In all cases check the effect on critical speeds and natural torsional
vibrations to avoid overloading the torque flanges due to resonance
step-up.
NOTE
For regular operation observe the mounting dimensions in all cases (see
page 46) .
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4.1 Conditions at the site of installation
T10F Torque Flanges are protected to IP54 according to EN 60 529. The
measuring flanges must be protected from dirt, dust, oil, solvents and
humidity. During operation, the prevailing safety regulations for the security of
personnel must be observed (see ”Notes on safety”).
The output signal and zero point of the T10F Torque Flange are compensated
for the effects of temperature variations between wide limits (see Technical
Data on page 48). This compensation is carried out by costly stove-processes
at static temperatures. This ensures that reproducible relationships are
present and that the characteristics of the transducers can be duplicated at
any time.
If static temperature relationships do not prevail, e.g. due to temperature
differences between the measuring element and the adapter flange, the
values specified in the technical data can be exceeded. Then for accurate
measurements, static temperature relationships must be obtained by cooling
or heating depending on the application. Alternatively, temperature
decoupling must be checked, e.g. by heat radiating elements such as
laminated couplings.
4.2 Mounting position
The torque flange can be mounted in any position. With clockwise torque, the
output frequency is 10...15 kHz. With HBM amplifiers or with the “Voltage
output”option, a positive output Signal (0...+10 V) is present.
In the speed measuring system, an arrow on the sensor head clearly indicates
the direction of rotation. When the torque flange rotates in the direction of the
arrow, connected HBM amplifiers deliver a positive output signal (0...+10 V).
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4.3 Installation options
In principle, there are two options for torque-flange mounting: with antenna
ring complete or disassembled. We recommend fitting in accordance with
chapter 4.3.1. If it is not possible to install in accordance with 4.3.1 (for
example during a subsequent stator change, or when installing with the speed
measuring system), you must dismantle the antenna ring. At this point please
be sure to follow the instructions for assembling the antenna segments (see
”Installing the stator”and “Installing the slotted disc”).
4.3.1 Installation with complete antenna ring
1. Install rotor 2. Install stator
3. Finish installation of shaft run
Customised
fastening device
Support supplied by the
customer
Clamping piece
4. Install the clamping piece if required.
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4.3.2 Installation with subsequent stator mounting
1. Install rotor 2. Install shaft run
.
3. Dismantle one antenna segment
.
5. Align stator and finish installation
Customised
stator fastening
4. Install antenna segment around
shaft run
Support supplied by the
customer
Clamping piece
6. Install the clamping piece if required
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4.3.3 Installation example with couplings
Fig. 4.1: Installation example with coupling
4.3.4 Installation example with cardan shaft
Fig. 4.2: Installation example with cardan shaft
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4.4 Installing the rotor
CAUTION
For regular operation observe the mounting dimensions in all cases (in
particular area of metal parts, see page 46) .
Additional mounting instructions for the speed measuring system can be
found in chapter 4.7, page 23.
NOTE
In general, the rotor type-plate will no longer be visible after installation.
Therefore, additional adhesive labels including the major characteristics
have been supplied. They can be fixed on the stator or other relevant
test-rig components thus enabling required data such as e.g. the
calibration signal to be read off at any time.
1. Prior to installation, clean the plan surfaces on the torque flange and
counter flange. For safe torque transmission, the surfaces must be clean
and free from grease. Use a piece of cloth or paper soaked with a solvent.
Make sure that no solvent drips into the torque flange’s interior and that the
transmitter coils do not suffer damage.
8x fastening screw (10.9, 12.9); observe
maximum thread depth Y!
8x DIN 912 hexagon–socket screw (Z) (10.9/12.9)
Measuring body
Fig. 4.1: Rotor screwed connection
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2. To screw–fasten the measuring body use eight DIN EN ISO 4762
hexagon–socket screws, property class 10.9 (measuring range
10 kNVm: 12.9), of the appropriate length (depending on the connection
geometry, see Table 4.1).
We recommend, particularly for 50 N⋅m, 100 N⋅m and 200 N⋅m situations,
fillister-head screws DIN EN ISO 4762 or similar, blackened,
smooth-headed, permitted size and shape variance in accordance with
DIN ISO 4759, Part 1, product class A.
WARNING
The screw heads (Z), see Fig. 4.1, must not fit tight to the adapter flange.
With alternating load: Use a screw locking device (e.g. LOCTITE no. 242)
to glue the screws into the counter thread in order to prevent slackening
and loss of pre–tensioning.
3. Before finally tightening the screws, turn the torque flange on the centering
until all screw heads are located more or less centrally in the clearance
bores on the connection element. The screw heads may in no case be in
contact with the sides of the adapter-flange clearance-bores.
4. Fasten all screws with the specified fastening torque (Table 4.1).
5. For further installation of the shaft run, there are eight threaded bores on
the adapter flange. Also use screws of property class 10.9 (or 12.9) and
fasten with the fastening torque specified in Table 4.1.
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CAUTION
With alternating loads, use screw locking device to glue into place the
connection screws. Guard against contamination from varnish
fragments.
Always observe the maximum thread reach specified in Table 4.1.
Otherwise, considerable measurement errors might occur or the
transducer might suffer damage.
Nominal
(rated) torque
(NVm)
Fastening
screws (Z) Fastening screws
class Maximum thread depth (Y)
of screws in adapter
flange
(mm)
Prescribed
fastening torque
(NVm)
50
100 M6 7.51) 14
200 M8 11 34
500 M12 10.9 18 115
1 k M12 18 115
2 k M14 18 185
3 k M14 26 185
5 k M18 10.9 33.5 400
10 k M18 12.92) 33.5 470
Table 4.1: Fastening screws
1) With optional speed module 14 mm; due to intermediate flange 6 mm longer screws
must be used.
2) If screws of Class 12.9 are not available, Class 10.9 screws (400 N⋅m tightening torque)
can be used. The permitted limiting torque is then reduced to 120 % by reference to
Mnom.
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4.5 Installing the stator B
On delivery, the stator is installed and ready for operation. The antenna
segments can be separated from the stator, for example, for maintenance or
to facilitate stator installation. In order not to alter the central alignment of the
segment rings in relation to the stator foot, we recommend you remove only
one antenna segment from the stator.
If your application does not require stator disassembly, proceed as described
in sections 2., 6., 7. and 8.
Version with speed measuring system
Since the rotation speed sensor surrounds the slotted disc, it is not possible to
slide the stator axially over the ready–fitted rotor (except for the 50 N⋅m,
100 N⋅m and 200 N⋅m ranges). Please also note chapter 4.7 on this point.
Fig. 4.2: Antenna-segment screwed connections
1. Slacken and remove the screwed connections (M6) on one antenna
segment. Make sure that the serrated locking washers are not lost.
2. Use an appropriate foundation plate to install the stator housing in the
shaft run, in such a way that it is still possible to make horizontal and
vertical adjustments. Do not fully tighten the screws yet.
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20 T10F
B 23. T10F.90 enHBM
3. Now refit the antenna segment removed under point 1. onto the stator
using two hexagon–socket screws and the serrated locking washers. Make
sure that for a defined transition resistance all required serrated locking
washers (see Fig. 4.2), die f are located under the nuts. Do not fully tighten
the screws yet.
4. Fit the upper screws for connecting the two antenna segments so that the
antenna ring is closed. Remember the serrated locking washers in this
case, too.
5. Now, fasten all antenna-segment screwed connections with a tightening
torque of 5 N⋅m.
6. Align the antenna and rotor so that the antenna encloses the rotor more or
less coaxially. Please adhere to the permitted alignment tolerances
specified in the technical data.
7. Fasten the stator-housing screwed connection.
8. Make sure that the opening in the lower
antenna-segment section is free from electroconductive
foreign substances.
CAUTION
In order to ensure proper functioning, the serrated locking washers (A5,
1–EST Din 6796 ZN/galvanised) must be renewed after the antenna
screws have been loosened three times.
Opening
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