UTM-300Nm

Transcription

UTM-300Nm

Rotating torque meter
2013 FEB.
UTM121030E.indd
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A longtime dream, a slip-ring-less rotating torque meter, UTM,
has just become available. We developed it as a high performance
sensor for embedded applications. Of course, it is also perfect for
general dynamic torque measurement. This is our masterpiece,
which has 1/10000-resolution, outstanding zero-point stability and
200Hz-bandwidth.
UNIPULSE was originally established by several young engineers in
1970 and has specialized in industrial measurement since that time. We
have developed a lot of unique products and expanded our own market.
Though we had wished to make a high-performance torque meter for 40
years, we couldn't do so because miniaturization of electronics was not
possible. However, we have finally succeeded in developing a rotating
torque meter, UTM, by adopting small advanced electronic components
and integrating our own technologies related to precision machining,
strain gauge technology and electronics.
All UTM output a pulse signal per rotation. Targetting to the size of
D battery, or close, we tried to minimize the size of 4 models, UTM-
0.03Nm, 0.3Nm, 3Nm and 30Nm, and we succeeded. For the products,
a 2000C/T optical rotary encoder is optionally available for measuring
torque variation against angular position, making it suitable for physical
sensory tests. Although the static frictional torque for UTM 0.03Nm
is only 0.00001Nm, we also provide an air-bearing option for more
accurate measurements. UTM-300Nm and 3000Nm are for large torque
applications and key groove option is available for both.
The full scales of torque in positive and negative directions are precisely
calibrated into ± 5.0000V outputs. We provide 3 types of scalers as
accessories for changing the full scale torque of UTM to 2/3, 1/3 and 1/6.
UTM is the best available torque meter right now. We supply UTM as
a reliable product under strict quality control. We are continuously
concentrating in R&D and will create more unique products.
We hope you are looking forward to our future products.
President & CEO
Ta k a m i Yo s h i m o t o
（From an engineer's view point. . . ）
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Overview
Principle of UTM
UTM adopts strain gauges for detecting torsional strain, which is converted into an electric signal by a strain amplifier
fixed on the rotating shaft. Electric power for the rotary electronics is supplied continuously through a wireless power
system originally developed by UNIPULSE. The torque is converted into digital signal on the rotary electronics, and
it is transferred optically to the electronics fixed to the main frame. The digital signal is reconverted into a voltage
signal by a D/A converter.
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Compact and easy to install
High accuracy and stability
Compact body: 62W x 45H x 40D mm
(UTM-0.03Nm, 0.3Nm, 3Nm and 30Nm)
1/10000 resolution with outstanding zero stability.
Even small torque variations can be detected by
UTM.
Maintenance-free
Max. speed 25000 rpm
No slip-ring.
The lifetime of UTM is mainly determined by the
lifetime of bearings.
UTM-0.03/0.3/3/30Nm
UTM-300Nm
UTM-3000Nm
Small starting torque
Built-in amplifier allowing for simple set-up
The starting torque of the bearing in the UTM0.03Nm is only 0.00001Nm (0.03 %FS).
Actually, the effect of rotating friction can be
negligible.
Simultaneous monitoring of torque and rotating speed
25000rpm
12000rpm
8000rpm
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High speed response
70
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Using TM300, which was developed for the UTM,
torque, rotating speed and power can be monitored
simultaneously.
UTM can measure high speed torque
changes such as torque ripple, torque
transient, etc.
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Line-up
Line-up
Type
Range
(Nm)
UTM-0.03Nm ± 0.03
UTM-0.3Nm
± 0.3
UTM-30Nm
± 30
UTM-3Nm
UTM-300Nm
± 3
± 300
UTM-3000Nm ± 3000
Shaft dia.
(mm)
Length
(mm)
φ5
82
φ8
92
φ 12
122
φ 60
300
φ 35
204
Main frame
dimension
(W × H × D mm)
Weight
(g)
Max. speed
(rpm)
190
62 × 45 × 40
92 × 77 × 70
100 × 108 × 102
205
215
290
2300
8000
Optional
Rotary encoder, Air-bearing
25000
12000
8000
Rotary encoder
Key groove
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UTM-0.03Nm
Type
Measurement range
Power supply
Output range
Cut-off frequency
Rotation signal
UTM-0.03Nm
Safe overload
Non-linearity
Hysteresis
Repeatability
Operation temp. range
Temp. effect on ZERO
Temp. effect on span
Max. rotation speed
Dimension (Main frame)
Weight
Attached cable
Accesories
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UTM-0.03Nm
± 0.03Nm（Approx. ± 0.3kgcm）
DC24V ± 15％　Consumption current：50mA
± 5V DC　Load resistance must be more than 2kΩ
fc ＝ 200Hz（-3dB）
1 pulse per 1 rotation
Open collector Max. ratings 30V, 0.1A
200％ FS
0.03％ FS（Typ）
0.03％ FS（Typ）
0.03％ FS（Typ）
-10 ～ +50℃
0.01%FS/℃（Typ）
0.01%FS/℃（Typ）
25000rpm
62（W）× 45（H）× 40（D）mm
190g
6 wires (End points: Peeled insulator and soldered)
CATM51：5m
CATM12：10m
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■ Cable colors
Color
Red
Black
Green
White
Yellow
Brown
Shield
Description
PWR（+24V）
Consumption current：50mA
PWR GND
SIG OUT（± 5VDC）
Load resistance must
be more than 2kΩ
SIG GND
PULSE OUT（Open collector）
Max. ratings: 30V, 0.1A
PULSE GND
Shield is not
connected anywhere
PWR GND, SIG GND and PULSE GND are
connected inside.
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Unit：mm
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UTM-0.3/3Nm
Type
Measurement range
Power supply
Output range
Cut-off frequency
Rotation signal
Accesories
UTM-0.3Nm
UTM-3Nm
± 0.3Nm（Approx. ± 3kgcm） ± 3Nm（Approx. ± 30kgcm）
fc ＝ 200Hz（-3dB）
200％ FS
0.03％ FS（Typ）
0.03％ FS（Typ）
0.03％ FS（Typ）
-10 ～ +50℃
0.01%FS/℃（Typ）
0.01%FS/℃（Typ）
25000rpm
62（W）× 45（H）× 40（D）mm
205g
215g
CATM51：5m
CATM12：10m
■ Cable colors
Color
Description
PWR（+24V）
PWR GND
be more than 2kΩ
SIG GND
PULSE GND
Shield is not
connected anywhere
Red
Black
Green
White
Yellow
Brown
Shield
UTM-0.3/3Nm
Safe overload
Non-linearity
Hysteresis
Repeatability
Max. rotation speed
Weight
Attached cable
4QVCT[GPEQFGT
connected inside.
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Unit：mm
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UTM-30Nm
Type
Measurement range
Power supply
Output range
Cut-off frequency
Rotation signal
UTM-30Nm
Safe overload
Non-linearity
Hysteresis
Repeatability
Max. rotation speed
Weight
Attached cable
Accesories
4QVCT[GPEQFGT
UTM-30Nm
± 30Nm（Approx. ± 3kgm）
fc ＝ 200Hz（-3dB）
200％ FS
0.03％ FS（Typ）
0.03％ FS（Typ）
0.03％ FS（Typ）
-10 ～ +50℃
0.01%FS/℃（Typ）
0.01%FS/℃（Typ）
25000rpm
62（W）× 45（H）× 40（D）mm
290g
CATM51：5m
CATM12：10m
■ Cable colors
Color
Red
Black
Green
White
Yellow
Brown
Shield
Description
PWR（+24V）
PWR GND
be more than 2kΩ
SIG GND
PULSE GND
Shield is not
connected anywhere
connected inside.
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UTM-300Nm
Type
Measurement range
Power supply
Output range
Cut-off frequency
Rotation signal
Accesories
UTM-300Nm
fc ＝ 200Hz（-3dB）
200％ FS
0.03％ FS（Typ）
0.03％ FS（Typ）
0.03％ FS（Typ）
-10 ～ +50℃
0.01%FS/℃（Typ）
0.01%FS/℃（Typ）
12000rpm
92（W）× 77（H）× 70（D）mm
Approx. 2.3kg
CATM51：5m
CATM12：10m
■ Cable colors
Color
Red
Black
Green
White
Yellow
Brown
Shield
Description
PWR（+24V）
PWR GND
be more than 2kΩ
SIG GND
PULSE GND
Shield is not
connected anywhere
UTM-300Nm
Safe overload
Non-linearity
Hysteresis
Repeatability
Max. rotation speed
Weight
Attached cable
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connected inside.
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Unit：mm
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UTM-3000Nm
Type
Measurement range
Power supply
Output range
Cut-off frequency
Rotation signal
UTM-3000Nm
Safe overload
Non-linearity
Hysteresis
Repeatability
Max. rotation speed
Weight
Attached cable
Accesories
-G[ITQQXG
UTM-3000Nm
fc ＝ 200Hz（-3dB）
200％ FS
0.03％ FS（Typ）
0.03％ FS（Typ）
0.03％ FS（Typ）
-10 ～ +50℃
0.01%FS/℃（Typ）
0.01%FS/℃（Typ）
8000rpm
100（W）× 108（H）× 102（D）mm
Approx. 8kg
CATM51：5m
CATM12：10m
■ Cable colors
Color
Description
PWR（+24V）
PWR GND
be more than 2kΩ
SIG GND
PULSE GND
Shield is not
connected anywhere
Red
Black
Green
White
Yellow
Brown
Shield
connected inside.
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Unit：mm
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Option
Rotary encoder
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* Maximum rotation speed is 4500 rpm.
＜ Type ＞
UTM-0.03Nm(R)
UTM-0.3Nm(R)
UTM-3Nm(R)
UTM-30Nm(R)
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Unit：mm
Air-bearing
Option
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＜ Type ＞
UTM-0.03Nm(A)
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Unit：mm
Key groove
K ＜ Type ＞
UTM-300Nm(K)
UTM-3000Nm(K)
K UTM-3000Nm(K)
UTM-300Nm(K)
05HPRYDOWDS
05HPRYDOWDS
Unit：mm
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Accessories
TMS1　Scaler
Rescaling original full-scale torque of UTM
into 2/3, 1/3 and 1/6.
(Please specify when you order TMS1.)
*The voltage output will remain ± 5V.
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Unit：mm
Accessories
TM300　Torque monitor
■ Torque monitor specialized for UTM.
■ Torque, Rotation speed and Power are
displayed simultaneously.
■ Upper/lower comparators with
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hold functions.
■ Data storage function.
■ Easy connection to UTM with one cable.
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F377A　Digital indicator /　F388A　Waveform checker
■ Multi-purpose analog voltage monitor　■ Visualizing torque variation　■ Upper/lower comparators, latch function
F377A
F388A
Torque monitoring for continuous
rotating applications.
Torque variation against time.
Torque monitoring against
angular position.
Special case
DTC2
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12
UTM121030E.indd
13
2013/02/14
21:04:15
Coupling
What’ s coupling?
UTM adopts strain gauges for measuring torsional strain on the shaft. The shaft is designed to withstand any disturbing
stress induced by radial or thrust forces. However, radial/thrust overloads will not only result in measurement error
but also heating-up of the bearings and/or irreversible distortion or fracture of UTM. Typical misalignments, radial
misalignment, angular misalignment, and endplay are shown in the figure below. Remaining misalignments between the
UTM shaft and drive/load shafts induce radial and thrust forces. Hence couplings are required to absorb these disturbing
forces and improve smoothness of rotating and accuracy. Allowance levels of the misalignments are dependent on the
combination of the range of UTM and couplings; thus fine adjustment will be needed for actual usage.
Radial misalignment
Angular misalignment
Endplay
Recommended coupling
Coupling
We strongly recommend rubber couplings shown in the righthand side photograph (Correspondent couplings are indicated by
● in the following table). Rubber coupling is composed of two
rigid parts connected to the axes with rubber joining the two
parts.
No backlash, well rotation balance and excellent damping of
vibration are the features of rubber coupling, and thus they
are the most suitable couplings for UTM. If you can not choose
rubber couplings, please select single disk couplings. If you use
multiple double disk couplings or slit type couplings on the axis,
unexpected vibration may occur because UTM is suspended by
springs. Unexpected vibration reduces accuracy and results in
damage on UTM in the worst case.
How to use coupling
UTM shafts are connected to drive-side and load-side shafts with rubber couplings as shown in the below. If the load and
driving devices have bearing internally, the bearings in the figure are unnecessary.
Main frame of UTM should be fixed loosely to the base.
'ULYH
%HDULQJ
/RDG
6RIWPDWHULDOEORFN
OLNHXUHWKDQHIRUP
5XEEHUFRXSOLQJ
Please minimize the torque fluctuation synchronized to rotation and adjust the misalignments carefully.
13
UTM121030E.indd
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21:04:17
Warning in high rotating speed
Rotating balance adjustment is needed for torque measurement over 3000rpm rotating speed. Unbalance of rotating
body induces vibration, which causes damage on UTM or coupling. Before conducting high speed operation, do the
balance adjustment carefully. We do not recommend key groove option for high speed applications.
Prohibition
・Do not use Oldham coupling. UTM will come off the original position, and UTM or other devices will be damaged.
・Do not use double disk coupling or slit type coupling. Unexpected resonant vibration occurs, and it generates overloads
or damages to UTM.
Recommended coupling
Coupling
Recommended couplings are indicated in the below table. Please contact our sales staff for the details of coupling or the
coupling for UTM-3000Nm.
Type
UTM dia.
（mm）
Coupling
type
Max
torque
（Nm）
UCM15
2.2
Coupling dia.（mm）
3
UTM-0.03Nm
5
UCS15
1
UCM19
4.2
UCS19
1.6
UCM25
8
UCS25
4.6
UTM-0.3Nm
UTM-3Nm
UTM-30Nm
UTM-300Nm
8
12
35
4.2
UCS19
1.6
UCM25
8
UCS25
4.6
UCM30
12.6
UCS30
6.6
UCM34
16
UCS34
11
UCM39
27
UCS39
14
UCM44
36
UCM56
UCM100
5
6
8
● ● ● ●
● ● ● ●
● ● ● ●
● ● ● ●
4
5
6
8
10 11 12 14 15 16 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 55 60
● ● ● ●
● ● ● ●
● ● ● ● ● ●
● ● ● ● ● ●
● ● ● ● ● ●
● ● ● ● ● ●
● ● ● ● ● ● ●
● ● ● ● ● ● ●
● ● ● ●
● ● ● ●
● ● ● ● ●
3
4
5
6
8
10 11 12 14 15 16 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 55 60
3
4
5
6
8
10 11 12 14 15 16 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 55 60
● ● ● ● ● ● ● ○ ○ ○ ○ ○ ○ ○
70
350
10 11 12 14 15 16 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 55 60
● ● ● ●
3
UCM19
4
● ● ● ●
○ ○ ○ ○ ○ ○ ○ ○ ○
●：Recommended rubber coupling
14
UTM121030E.indd
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21:04:18
Attached cable
:DWHUSURRIHGSOXJ
+533‫كق‬
PP
PP
Class
Pin number
1
Signal name
‫؟‬5HG‫ق‬3:5ٔ9‫ك‬
‫؟‬%ODFN‫ق‬3:5*1'‫ك‬
‫*؟‬UHHQ‫ق‬6,*2879'&‫ك‬
‫؟‬:KLWH‫ق‬6,**1'‫ك‬
‫<؟‬HOORZ‫ق‬38/6(287‫ك‬
‫؟‬%URZQ‫ق‬38/6(*1'‫ك‬
6KLHOG
Details
Connect to +24V power supply. Voltage range must be within +24V plus-minus 15%.
Use a power supply which can operate with small load because the current
consumption of UTM is low (50mA or 60mA).
PWR（＋ 24V）
3:5‫ٔق‬9‫ك‬
Power
3:5*1'
2
PWR GND
Although 2, 4 and 6 pins are connected each other internally but respective wire should
be connected separately for preventing voltage error.
Attached cable・Technical data
This is signal output. The signal is adjusted to 0V for no-load and 5V for full scale.
The minimum resistant is 2k Ω .
5
3
SIG OUT
（± 5V DC）
̚
6,*287‫ق‬9'&‫ك‬
6,**1'
Torque
In case of electrically noisy environment, please try to insert RC low-pass filter as
below. This is effective to reduce high frequency noises.
signal
4
6,*287
SIG GND
870 ‫ ق‬9'&‫ك‬
6,**1'
5
PULSE OUT
（Open collector）
6
PULSE GND
Rotating
5
&
&RQQHFWLRQ
GHYLFH
5 ê
& ̭)
Pulse signal output generates 1 pulse per 1 rotation.
Rated voltage and current are 30V and 0.1A, respectively.
38/6(287
pulse
38/6(*1'
Technical data
Type
Measurement range (Nm)
Torsional spring constant (Nm/rad)
Maximum torsional angle (10-3rad)
Inertia (kgcm2)
Torsional natural frequency (kHz)
Maximum radial load (N)
Maximum thrust load
between shaft and main frame (N)
Maximum thrust load
between load-side end and
drive-side end (N)
UTM-0.03Nm
± 0.03
3.75
8.00
（0.458°）
1.58 × 10-2
UTM-0.3Nm
± 0.3
30.5
9.83
（0.563°）
1.98 × 10-2
UTM-3Nm
±3
332
9.04
（0.518°）
2.2 × 10-2
UTM-30Nm
± 30
2091
14.35
（0.822°）
5.4 × 10-2
12
15
UTM-300Nm
± 300
38.2 × 103
7.85
（0.45°）
2.7
5.5
750
UTM-3000Nm
± 3000
300 × 103
10.0
（0.5729°）
31.8
4.7
1800
1
6
30
100
450
1000
1
4
30
150
230
500
1.3
0.5
2.3
2
5.8
4
Radial and thrust loads should be as small as possible for accurate measurement.
15
UTM121030E.indd
16
2013/02/14
21:04:19
Definitions of technical terms
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16
UTM121030E.indd
17
2013/02/14
21:04:20
Application examples
Servo motor with torque output
Rotary encoder
Load
870
Motor
Angular position
Torque signal
Servo driver
PLC etc.
Positioning signal
By setting UTM between the rotary encoder and motor, you can make a servo motor system with
torque output. The system can be applied to various applications, such as robot hands or other
Application examples
systems which can detect load.
Physical sensory test
Gear box
(Inspection target)
Reduction gear
‫ؙ‬870
(with rotary encoder
option)
Motor
Angular position
Torque signal
PC etc.
Torque corresponding to angular position can be monitored by using UTM with rotary encoder
option. The system can be applied to automation of physical sensory test.
Motor test bench
Motor to be inspected
870
Load device
(motor etc.)
Motor driver
Torque signal
Torque
70
Rotating speed
Pulse signal
Controller
Regenerative electric power
Load driver
with electric regeneration
function
Mechanical power can be calculated from torque and rotating speed. By using regenerative
electric power, the system can be power-saving and environmentally-friendly.
17
UTM121030E.indd
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2013/02/14
21:04:24
Mixer with torque meter
Screw driver with torque monitoring
Motor
Motor
PLC etc.
PLC etc.
Reduction
gear
Motor driver
Motor driver
Pulse signal
GO/NOGO
signal
Torque signal
870
Torque signal
870
Torque
GO/NOGO
signal
70
Rotating angle
Pulse signal
)$
7RUTXH
GO/NOGO
signal
7LPH
)$
Mixing impeller
The system measures torque on the axis of mixing
To r q u e c a n b e m e a s u r e d i n t h e p r o c e s s o f
monitoring torque. By using TM300 and F377A, I/O
controlled during the whole process, the system
impellers. The change of viscosity can be detected by
tightening screws. Since the torque can be
signals can be controlled by the threshold levels.
can be applied to automation of process.
Engine test bench
(QJLQH
870
/RDGGHYLFH
PRWRUHWF
7RUTXHVLJQDO
7RUTXH
5RWDWLQJVSHHG
&RQWUROOHU
70
3XOVHVLJQDO
In case of torque measurement with large vibration, such as measurement of
engines, please attach double disk coupling and use double bearing.
5XEEHU
FRXSOLQJ
6LQJOHGLVN
FRXSOLQJ
'RXEOHGLVN
FRXSOLQJ
%HDULQJ
18
UTM121030E.indd
19
2013/02/14
21:04:28
Unipulse Corporation
International Sales Department
Head Office
Technical Center
Nagoya Sales Office
Osaka Sales Office
Hiroshima Sales Office
9-11 Nihonbashi Hisamatsucho, Chuo-ku, Tokyo 103-0005
Tel: +81-3-3639-6121 Fax: +81-3-3639-6130
9-11 Nihonbashi Hisamatsucho, Chuo-ku, Tokyo 103-0005
1-3 Sengendainishi, Koshigaya, Saitama 343-0041
CK16 Fushimi Bldg 1-24-25 Sakae, Naka-ku, Nagoya 460-0008
Sumitomo Seimei Shin Osaka Kita Bldg 4-1-14 Miyahara, Yodogawa-ku, Osaka 532-0003
Funairi Reiku Bldg 9-20 Funairihonmachi, Hiroshima 730-0843
http://www.unipulse.com/en/
* Please note that specifications or designs shown in this catalog may be changed without prior notice due to our continuous product improvement activities.
UTM121030E.indd
20
Rev.1.02 2013 FEB.
2013/02/14
21:04:29

UTM-300Nm

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