CN2570740Y - Subdivision-assembly magnetoelectric/photoelectric digital integrated measuring apparatus for shafting torque and torsion - Google Patents
Subdivision-assembly magnetoelectric/photoelectric digital integrated measuring apparatus for shafting torque and torsion Download PDFInfo
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- CN2570740Y CN2570740Y CN 02279350 CN02279350U CN2570740Y CN 2570740 Y CN2570740 Y CN 2570740Y CN 02279350 CN02279350 CN 02279350 CN 02279350 U CN02279350 U CN 02279350U CN 2570740 Y CN2570740 Y CN 2570740Y
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- 238000005259 measurement Methods 0.000 claims abstract description 18
- 230000010355 oscillation Effects 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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Abstract
The utility model relates to a subdivision-assembly magnetoelectric/photoelectric digital integrated measuring apparatus for shafting torque and torsional oscillation, which is composed of a signal processing instrument and a sensor, wherein the sensor can be a magnetoelectric sensor or a photoelectric sensor, wherein the magnetoelectric sensor is composed of a subdivision type clamping ring group, a subdivision type sensing gear, a magnetic steel-coil group, a connecting bolt, a torque transmission shaft, etc. The photoelectric sensor is provided with a pair of stationary luminotron-phototube on both sides of a sensing gear tooth groove to replace the magnetic steel-coil group. After signals coming from the sensor are processed and calculated, the torque measuring result, the rotation speed measuring result, the power measuring result, the torsion frequency measuring result, the torsional oscillation measuring result, the angle displacement measuring result, the oscillation measuring result, etc. can be simultaneously obtained. The utility model has the advantages that leading the signal out is convenient, the measuring signal is the phase difference signal, the measuring accuracy is not influenced by the signal amplitude variable, a sensor power is not needed, the torsion and the torsional oscillation can be simultaneously measured, etc. The utility model is suitable for the integrated measurement on the shafting torque and torsional oscillation of a stationary generating plant with shafting and especially marine propulsion shafting.
Description
Technical field
The utility model belongs to power engineering and Marine Engine Engineering technical field of measurement and test, relates to the measurement mechanism that the land based power plant axle is torque, torsional oscillation.
Background technology
The at present both at home and abroad practical land based power plant axle such as marine propulsion shafting that is used for is that the instrument of torque measurement is the type vibration wire torque gauge, also is " horse Haake (Maihak) torque gauge ".It is to adopt two semicircle snap ring package assemblies to fill the span of a man's arms to be fixed on the axle, the two sections at a distance of certain distance on axle has been fixed two groups of this mechanisms respectively, two groups of snap rings stretch out a cantilever to the other side's direction respectively, fix a vibrating string type sensor perpendicular to axis and with a certain distance from axis on two cantilevers.Its principle of work is as follows: after rotating shaft is subjected to moment of torsion, to cause between axle cross section, last two snap ring place and produce a corresponding torsion angle displacement, this torsion angle displacement changes the line elongation of the vibratory string of vibrating string type sensor into by the snap ring cantilever, thereby change the vibration frequency of vibratory string, again magnet steel-the coil of this string vibration frequency by vibrating string type sensor is converted to electric signal, through slip ring-brush this electric signal is led to receiving instrument and handle, calculate, draw the torque value of surveying.
The type of torque gauge also has approach sensors such as resistance-strain type, piezomagnetic, magneto-electric.
The resistance-strain type torque gauge is with the strain-type transducer---foil gauge sticks on and constitutes torque sensor in the rotating shaft, the torsional strain of the axle that the moment of torsion of rotating shaft is caused is converted into the changes in resistance of foil gauge, the resistance variations signal causes the outer corresponding surveying instrument of rotating shaft by special derivation mechanism and handles, calculates, and draws the torque value of surveying.
The piezomagnetic torque gauge is to utilize piezomagnetic effect, i.e. the distorting stress of rotating shaft moment of torsion generation can cause that the magnetic permeability of ferromagnet rotating shaft produces respective change, by special measuring mechanism this signal is measured, and treated again, calculating draws the torque value of surveying.
The magneto-electric torque gauge is at torque output shaft upper edge axis two identical gears to be installed at a distance of a distance, one motionless magnet steel-coil groups and gear is installed respectively constituted two groups of magnetoelectric transducers with the tooth top certain interval place that is separated by, tooth top and teeth groove replace gap between change and magnet steel during the axle rotation, thereby make the magnetic circuit magnetic resistance produce alternation, in coil, produce the induced potential signal.When the axle torque suspension is done the time spent, the two sensors gear then produces corresponding relative angular displacement, two groups of electrical signal of reaction exporting in magnet steel-coil then produce the additional phase error of relative angular displacement correspondence therewith, and two groups of electric signal are handled, calculated, and then can draw the torque value of surveying.
The resistance-strain type torque gauge need be superb when using foil gauge technology for applying and insulation technology, the introducing of its rotating shaft upper sensor power supply and signal draw must by a cover complicated measuring accuracy is had the mechanism of considerable influence, therefore it uses inconvenience, and measuring accuracy is not high.
During the measurement of piezomagnetic torque gauge, shaft bending stress, mechanical vibration etc. are bigger to amplitude influences, so its measuring accuracy is not high.
Magnet steel-the coil stationary of magneto-electric torque gauge is motionless, and signal is drawn conveniently.Its measured signal is a phase signal, and measuring accuracy is not subjected to the influence of signal changes in amplitude, but influenced by torsional oscillation.In addition, existing magneto-electric torque gauge is the assembly structure mode, measured axis system must be disconnected during measurement, and sensor unit is installed in series in axle system, and this measures land based power plant axles such as marine propulsion shafting system is unallowed.
Above-mentioned several torque gauge is because the deficiency of described its existence, is to fail practical application in the torque measurement at land based power plant axles such as marine propulsion shaftings therefore.
The type vibration wire torque gauge is that now practical both at home and abroad land based power plant axles such as measurement marine propulsion shafting are the instrument of torque, because the frequency part of the number of winning the confidence only during its data processing, so disturbed the amplitude that causes to change in the signals transmission measuring accuracy is not influenced; Because it adopts two semicircle snap ring package assemblies to fill the span of a man's arms to be fixed on the axle, therefore will measured axis system do not disconnect and sensor can be installed in axle and fasten.But vibration all has bigger influence to measurement to the variety of way of axle system (longitudinal and transverse, turn round etc.), so its measuring accuracy is not high.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of signal to draw conveniently, measuring accuracy is not subjected to the influence of signal changes in amplitude and torsional oscillation, the drive shaft system with land based power plant axles such as marine propulsion shafting system disconnects with sensor installation, and the axle that can obtain measurement results such as torque, rotating speed, power, torsion frequency, torsional oscillation angular displacement amplitude after the signal that sensor is next is handled, calculated simultaneously is torque, torsional oscillation comprehensive measurement device.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
The utility model is made up of signal Processing instrument and sensor.Sensor can be magnetoelectric sensor or electro-optical pickoff.
Magnetoelectric sensor is made up of snap ring group, sensing gear, magnet steel-coil groups, coupling bolt, moment of torsion transmitter shaft etc.
Snap ring group subdivision is the snap ring and the snap ring seat of two semicircles, with bolt two halves snap ring seat is connected as a whole and with the two halves snap ring be pressed on the axle a cross section on.
Sensing gear subdivision is the gear of two semicircles, with bolt the two halves gear is connected as a whole, and uses bolt tightening on the snap ring seat it again.
Magnet steel-coil groups is fixed on and the tooth top certain interval place that is separated by, and hull or bearing seat are motionless relatively.
The utility model has the corresponding position, two cross sections that two cover snap ring groups, sensing gear and magnet steel-coil groups lay respectively at the moment of torsion transmitter shaft.
Drive the snap ring group during rotation of moment of torsion transmitter shaft and rotate with the sensing gear, tooth top and teeth groove replace gap between change and magnet steel, thereby make the magnetic circuit magnetic resistance produce alternation, produce the induced potential signal in coil.When the axle torque suspension is done the time spent, the two sensors gear then produces corresponding relative angular displacement, two groups of electrical signal of reaction exporting in magnet steel-coil then produce the additional phase error of relative angular displacement correspondence therewith, two groups of electric signal are handled, calculated, then the torque value of surveying can be drawn, the torsional oscillation value can be handled, calculate simultaneously.
If adopt the electro-optical pickoff structure, a pair of motionless luminotron-photoelectric tube then is installed in the teeth groove both sides is replaced magnet steel-coil groups and constitute photoelectric sensor with gear, what exported is photosignal rather than magneto-electric induction signal.
The signal that signal processing apparatus instrument of the present utility model comes sensor is handled, is calculated and shows measurement result.No matter be magneto-electric or photo-electric, the signal Processing instrument all can draw measurement results such as rotating speed, torque, power, torsion frequency, torsional oscillation angular displacement amplitude.
Because the utility model has adopted the structure of subdivision assembling sensor, have that signal is drawn conveniently, measuring-signal is the influence that is not subjected to the signal changes in amplitude of phase signal, measuring accuracy, need not probe power, can measure advantages such as torque and torsional oscillation simultaneously.
Compare with the resistance-strain type torque gauge, the utility model is not high to user's technical requirement when using, sensor construction simple, signal is drawn conveniently, disturbing factor causes that the variation of signal amplitude does not exert an influence to measuring accuracy.
Compare with the piezomagnetic torque gauge, the interference-free factor of measuring accuracy of the present utility model causes the influence that signal amplitude changes.
Compare with the magneto-electric torque gauge, existing magneto-electric torque gauge is the assembly structure mode, measured axis system must be disconnected during measurement, and sensor unit is installed in series in axle system, and this measures land based power plant axles such as marine propulsion shafting system is unallowed; And the utility model is a subdivision package assembly mode, is applicable to land based power plant axle system measurements such as marine propulsion shafting.
Compare with the type vibration wire torque gauge, sensor construction of the present utility model is simple, signal is drawn conveniently, and shafting torsional oscillation is eliminated by data processing easily to the influence of measuring.
In addition, above-mentioned various torque gauges only are used to measure torque, and the utility model can be measured torque and torsional oscillation simultaneously.
Description of drawings
Fig. 1 is the utility model magnetoelectric sensor structural representation;
Wherein:
The 1-snap ring; 2-snap ring seat; 3-sensing gear; 4,6,7-coupling bolt; 5-moment of torsion transmitter shaft; 8-magnet steel-coil groups
Embodiment
The utility model is made up of signal Processing instrument and sensor, and sensor is a magnetoelectric sensor.
Magnetoelectric sensor is made up of snap ring group, sensing gear 3, magnet steel-coil groups 8, bolt 4, bolt 6, bolt 7, moment of torsion transmitter shaft 5 etc.
Snap ring group subdivision is the snap ring 1 and the snap ring seat 2 of two semicircles, two halves snap ring seat 2 is connected as a whole and two halves snap ring 1 is pressed on the cross section of moment of torsion transmitter shaft 5 with bolt 7.
Sensing gear 3 subdivisions are the gear of two semicircles, with bolt 7 the two halves gear are connected as a whole, and again it are fixed tightly on the snap ring seat 2 with bolt 4.
Magnet steel-coil groups 8-is fixed on and the tooth top certain interval place that is separated by, and hull or bearing seat are motionless relatively.
The utility model has the corresponding position, two cross sections that two cover snap ring groups, sensing gear 3 and magnet steel-coil groups 8 lay respectively at moment of torsion transmitter shaft 5.
Claims (2)
1, a kind of subdivision assembling magnetoelectricity/photoelectric figure formula axle is torque, torsional oscillation comprehensive measurement device, comprises signal Processing instrument and sensor; It is characterized in that: magnetoelectric sensor is made up of snap ring group, sensing gear (3), magnet steel-coil groups (8), bolt (4), bolt (6), bolt (7), moment of torsion transmitter shaft (5);
A, snap ring group subdivision are the snap ring (1) and the snap ring seat (2) of two semicircles, two halves snap ring seat (2) is connected as a whole and two halves snap ring (1) is pressed on the cross section of moment of torsion transmitter shaft (5) with bolt (7);
B, sensing gear (3) subdivision are the gear of two semicircles, with bolt (7) the two halves gear are connected as a whole, and again it are fixed tightly in (2) on the snap ring seat with bolt (4);
C, magnet steel-coil groups (8)-be fixed on and the tooth top certain interval place that is separated by, hull or bearing seat are motionless relatively;
Have the corresponding position, two cross sections that two cover snap ring groups, sensing gear (3) and magnet steel-coil groups (8) lay respectively at moment of torsion transmitter shaft (5).
2, subdivision assembling magnetoelectricity/photoelectric figure formula axle according to claim 1 is torque, torsional oscillation comprehensive measurement device, it is characterized in that: a pair of motionless luminotron-photoelectric tube is installed in sensing gear (3) teeth groove both sides is replaced magnet steel-coil groups (8), constitute electro-optical pickoff with sensing gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279350 CN2570740Y (en) | 2002-09-26 | 2002-09-26 | Subdivision-assembly magnetoelectric/photoelectric digital integrated measuring apparatus for shafting torque and torsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279350 CN2570740Y (en) | 2002-09-26 | 2002-09-26 | Subdivision-assembly magnetoelectric/photoelectric digital integrated measuring apparatus for shafting torque and torsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2570740Y true CN2570740Y (en) | 2003-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279350 Expired - Fee Related CN2570740Y (en) | 2002-09-26 | 2002-09-26 | Subdivision-assembly magnetoelectric/photoelectric digital integrated measuring apparatus for shafting torque and torsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2570740Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288407A (en) * | 2011-07-28 | 2011-12-21 | 潍柴动力股份有限公司 | Torsional vibration testing device |
| CN102037339B (en) * | 2008-05-21 | 2013-06-05 | 涡轮梅坎公司 | Device for measuring the torque transmitted by a power shaft |
| CN108151933A (en) * | 2016-12-02 | 2018-06-12 | 湖南天能电机制造有限公司 | A kind of flexible connected torque rotary speed sensor device |
-
2002
- 2002-09-26 CN CN 02279350 patent/CN2570740Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102037339B (en) * | 2008-05-21 | 2013-06-05 | 涡轮梅坎公司 | Device for measuring the torque transmitted by a power shaft |
| CN102288407A (en) * | 2011-07-28 | 2011-12-21 | 潍柴动力股份有限公司 | Torsional vibration testing device |
| CN108151933A (en) * | 2016-12-02 | 2018-06-12 | 湖南天能电机制造有限公司 | A kind of flexible connected torque rotary speed sensor device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |