CN109084882A - Rotating Disk Vibration detection control apparatus and method - Google Patents
Rotating Disk Vibration detection control apparatus and method Download PDFInfo
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- CN109084882A CN109084882A CN201811158462.0A CN201811158462A CN109084882A CN 109084882 A CN109084882 A CN 109084882A CN 201811158462 A CN201811158462 A CN 201811158462A CN 109084882 A CN109084882 A CN 109084882A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
Abstract
The invention discloses a kind of Rotating Disk Vibration detection control apparatus and methods, described device includes disk, rotary drive mechanism, vibrational excitation mechanism, vibration control mechanism, vibration detection mechanism and control assembly, the disk is perpendicular to horizontal plane, the rotary drive mechanism is connect with disk, for driving disc rotary；The vibrational excitation mechanism is for motivating disk to generate oscillation crosswise；The vibration control mechanism is used to inhibit the oscillation crosswise of disk；The vibration detection mechanism includes laser displacement sensor and Wireless Acceleration Sensor, and the surface of the measuring head face disk of the laser displacement sensor, the surface of disk is arranged in the Wireless Acceleration Sensor, and connect with radio network gateway；The control assembly is connect with vibration control mechanism, laser displacement sensor, radio network gateway respectively.The present invention may be implemented to the fast and stable detection of rotating circular disk oscillation crosswise and active control.
Description
Technical field
The present invention relates to a kind of vibration detection control device, especially a kind of Rotating Disk Vibration detection control apparatus and side
Method belongs to the vibration detection and control field of flexible rotating structure.
Background technique
As high-speed rotating machine is in the extensive use of industrial circle, the event caused by the oscillation crosswise of rotating machinery itself
Barrier emerges one after another.Wherein, rotating circular disk belongs to basic rotating machinery structure in industrial application, as turbine, annular saw, gyroscope,
Computer memory device etc. is increased as the thickness of rotating circular disk reduces with revolving speed, due to the bias or external disturbance of installation axle
Caused oscillation crosswise will affect or the service performance of limit mechanical, or even destroys structure.Thus to rotating circular disk class
The vibration control of structure and the requirement of stability are increasingly stringenter, and are needed to be added actuator and are applied active control.But for rotation
Rotation structure, the sensor or actuator of wired are mounted for problem, and implementing contactless measurement and actuation is shaken to it
The key link of dynamic control.
Summary of the invention
The purpose of the present invention is to solve the defects of the above-mentioned prior art, provide a kind of Rotating Disk Vibration detection control
Device processed, the device may be implemented to the fast and stable detection of rotating circular disk oscillation crosswise and active control.
Another object of the present invention is to provide a kind of Rotating Disk Vibrations to detect control method.
The purpose of the present invention can be reached by adopting the following technical scheme that:
Rotating Disk Vibration detection control apparatus, including disk, rotary drive mechanism, vibrational excitation mechanism, vibration control
Mechanism, vibration detection mechanism and control assembly, the disk connect perpendicular to horizontal plane, the rotary drive mechanism and disk
It connects, for driving disc rotary；The vibrational excitation mechanism is for motivating disk to generate oscillation crosswise；The vibration control mechanism
For inhibiting the oscillation crosswise of disk；The vibration detection mechanism includes laser displacement sensor and Wireless Acceleration Sensor,
The table of disk is arranged in the surface of the measuring head face disk of the laser displacement sensor, the Wireless Acceleration Sensor
Face, and connect with radio network gateway；The control assembly is correlated with vibration control mechanism, laser displacement sensor, wireless network respectively
It connects.
Further, the rotary drive mechanism includes servo motor, retarder, shaft coupling, flange part and motor control
Case, the servo motor carry photoelectric encoder, the output shaft of servo motor and the input axis connection of retarder, the retarder
Output shaft by the connection axis connection of shaft coupling and flange part, the flange part is fixedly connected with disk, the motor control
Case is connect with servo motor.
Further, described device further includes support platform, and the servo motor is fixed in support platform.
Further, the vibrational excitation mechanism includes current vortex actuator, the first conversion circuit and signal generator, institute
The iron core both ends for stating current vortex actuator are symmetrical about disk, and the signal generator is made by the first conversion circuit and current vortex
Dynamic device connection.
Further, the vibration control mechanism includes eddy current damper and the second conversion circuit, the current vortex resistance
The iron core both ends of Buddhist nun's device are symmetrical about disk, and the control assembly is connect by the second conversion circuit with eddy current damper.
Further, the control assembly includes industrial personal computer, A/D capture card, conditioning circuit and D/A transition card；
The industrial personal computer is connect by A/D capture card with conditioning circuit, is connect by USB interface with radio network gateway, and
It is connect by D/A transition card with vibration control mechanism, the conditioning circuit is connect with laser displacement sensor.
Further, described device further includes workbench, and the measuring head setting of the laser displacement sensor is working
On platform.
Further, the measuring head of the laser displacement sensor is fixed on the connecting plate of end face, the end face connecting plate
It is slidably connected with the vertical supporting bar of workbench.
Further, the Wireless Acceleration Sensor is adsorbed in disc surfaces, is built-in with sensing module, power supply mould
Block, acquisition processing module and radio receiving transmitting module.
Another object of the present invention can be reached by adopting the following technical scheme that:
Rotating Disk Vibration detects control method, which comprises
In rotary drive mechanism, motor control box controls servo motor and disk is driven to stablize rotation；
In vibrational excitation mechanism, signal generator generates pumping signal, is converted to current vortex through the first conversion circuit and makees
Current signal in dynamic device coil causes disc surfaces near zone changes of magnetic field, and the current vortex and magnetic field generated in disk is made
With generation electro-magnetic exciting force evokes the oscillation crosswise of rotating circular disk；
Laser displacement sensor detects vibration signal, after conditioning circuit filter and amplification, is transmitted to through the acquisition of A/D capture card
Industrial personal computer；
Wireless Acceleration Sensor detects the vibration information of absorption position disk, is transferred to nothing by BeeNet network protocol
Gauze closes, and radio network gateway is transferred to industrial personal computer；
After industrial personal computer compares weighted analysis to detection signal, control algolithm is run, output phase answers control amount, passes through D/
A transition card is converted to analog quantity, then changes the coil current of eddy current damper through the second conversion circuit, generates damping force and inhibits
The vibration of rotating circular disk.
The present invention have compared with the existing technology it is following the utility model has the advantages that
1, the present invention is by the surface of the measuring head face disk of laser displacement sensor, and by Wireless Acceleration Sensor
The surface of disk is set, non-cpntact measurement, combining with wireless sensor contact measurement long distance are carried out using laser displacement sensor
From wireless transmission, a variety of detection modes for avoiding coiling are combined, and raising reliability is mutually authenticated, and multiple spot detection improves precision.
2, after the present invention drives disc rotary by rotary drive mechanism, rotational circle can be motivated using current vortex actuator
Disk generates oscillation crosswise, and can inhibit the oscillation crosswise of rotating circular disk using eddy current damper, cordless force,
Coiling problem is avoided, and without mechanical friction, driving force is big, realizes and active control is applied to the oscillation crosswise of rotating circular disk.
3, the present invention realizes rotary motion using servo motor and retarder driving rotation, encoder and motor control box
Closed-loop control provides stabilized (steady-state) speed, optimal control performance；It simultaneously can be by changing retarder reduction ratio research rotation speed change to control
The influence of effect processed.
Detailed description of the invention
Fig. 1 is the Rotating Disk Vibration detection control apparatus general structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the left view of the Rotating Disk Vibration detection control apparatus of the embodiment of the present invention 1.
Fig. 3 is the top view of the Rotating Disk Vibration detection control apparatus of the embodiment of the present invention 1.
Fig. 4 is the schematic diagram that the disk of the embodiment of the present invention 1 is connect with rotary drive mechanism.
Fig. 5 is Rotating Disk Vibration detection control apparatus measuring point, actuation point and the damping point signal of the embodiment of the present invention 1
Figure.
Wherein, 1- disk, 2- servo motor, 3- retarder, 4- shaft coupling, 5- flange part, 6- motor control box, 7- axis
It holds, 8- photoelectric encoder, 9- support platform, 901- the first vertical supporting bar, 902- transverse support bar, the first laminate of 903-,
The second laminate of 904-, 10- first base, 11- second base, 12- current vortex actuator, the first conversion circuit of 13-, 14- signal
Generator, 15- eddy current damper, the second conversion circuit of 16-, 17- third pedestal, the 4th pedestal of 18-, 19- laser displacement pass
Sensor, 20- Wireless Acceleration Sensor, 21- workbench, 2101- the second vertical supporting bar, 2102- third laminate, 2103-
4th laminate, the end face 22- connecting plate, 23- radio network gateway, 24- actuation point, 25- damping point, 26- first laser test point, 27-
Second laser test point, 28- third laser detection point, the 4th laser detection point of 29-, 30- the first acceleration detection node, 31-
Second acceleration detection node, 32- industrial personal computer, 33-A/D capture card, 34- conditioning circuit, 35-D/A transition card.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment 1:
Contactless vibration detection generallys use laser displacement sensor, Wireless Acceleration Sensor, visual sensor
Deng.Laser displacement sensor is to realize that vibratory output is examined by receiving the Laser Time variation that measured object surface reflection is returned
It surveys, response is fast, Measurement reliability is high；Wireless Acceleration Sensor is by installing sensing node, detection vibration on measured object surface
Data are sent to according to network protocol encapsulation by radio network gateway by internal radio receiving transmitting module after dynamic information, radio network gateway is again
Vibration data is transmitted to computer by USB interface, low in energy consumption, using digital data transmission, transmission rate is fast and avoids electricity
Road noise acoustic jamming；Visual sensor is using two industrial camera acquisition images and processing obtains index point three-dimensional on rotating circular disk and sits
Variation is marked to detect vibration, is contained much information, precision is high, but processing time length has difficulty for subsequent real-time control.Therefore,
The present embodiment realizes contactless vibration detection using laser displacement sensor and Wireless Acceleration Sensor.
In addition, the existing actuator that can apply damping progress vibration control to rotational structure mainly has: squeeze film hinders
Buddhist nun's device, shape memory alloy actuator, current vortex actuator.Squeeze film damper can preferably inhibit to install due to bearing inclined
The oscillation crosswise of rotating circular disk caused by the heart, but design not at that time, the nonlinear characteristic of Unbalance will be increased considerably, makes to control
Effect processed is deteriorated, and reliability is low.Marmem can be controlled by temperature change it is flexible forms damping force, structure is simple, matter
Amount is light, but is influenced greatly by ambient temperature variation, and stability is poor；Current vortex actuator vibrates rotating circular disk by electromagnetic force
Control, have the advantages that it is non-contact, without mechanical friction and wear, it is controllable without lubricating and damping.Therefore, the present embodiment is using electricity
Vortex actuator controls rotating circular disk.
As shown in FIG. 1 to 3, a kind of Rotating Disk Vibration detection control apparatus is present embodiments provided, which includes
Disk 1, rotary drive mechanism, vibrational excitation mechanism, vibration control mechanism, vibration detection mechanism and control assembly, disk 1 are vertical
Dotted line in horizontal plane, Fig. 1 indicates the line relationship between each equipment, and direction arrow shows the biography of detection signal stream
Direction is passed, the dotted line in Fig. 2 and Fig. 3 indicates the measuring head direction of laser displacement sensor.
As shown in Figure 1 to 4, the rotary drive mechanism includes servo motor 2, retarder 3, shaft coupling 4, flange part 5
With motor control box 6, the output shaft of servo motor 2 and the input axis connection of retarder 3, the output shaft of retarder 3 pass through shaft coupling
The connection axis connection of device 4 and flange part 5, flange part 5 clamps disk by end cap, and is bolted to connection, motor control
Case 6 is connect with servo motor 2；In order to keep rotary drive mechanism more stable, which further includes bearing 7, retarder 3
Output shaft supported by bearing 7；In addition, servo motor 2 carries photoelectric encoder 8, the revolving speed of servo motor 2 can be read, and
Feed back to motor control box 6, forming position closed loop or velocity close-loop control.
During driving, the outputting axial power of servo motor 2 passes through shaft coupling after retarder 3 is slowed down with certain reduction ratio
Device 4 passes to the connecting shaft of flange part 5, and the disk 1 of clamping is driven to rotate, and bearing 7 provides a supporting role, and photoelectric encoder 8 is surveyed
It obtains 2 revolving speed of servo motor and feeds back to motor control box 6, motor control box 6 adjusts output voltage and forms closed-loop control.
Preferably, in order to preferably support rotary drive mechanism and disk 1, the Rotating Disk Vibration of the present embodiment detects control
Device processed further includes support platform 9, which includes 901, eight transverse support bars 902 of the first vertical supporting of six roots of sensation bar
With two blocks of laminates, two blocks of laminates are respectively the first laminate 903 and the second laminate 904, the six roots of sensation the first vertical supporting bar from top to bottom
Having two in 901 is stock, and four are quarter butts, two root long bars and wherein two quarter butts pass through wherein four transverse support bars
902 connect with the first laminate 903 respectively, and this two quarter butts are fixed on the second laminate 904, the length of the second laminate 904
Greater than the first laminate 903, and disk 1 is placed exactly in the upper that 904 to the first laminate 903 of the second laminate is grown, two root longs
Bar and other two quarter butts are connect with the second laminate 904 respectively by other four transverse support bars 902；Servo motor 2 is fixed
In the upper surface of the first laminate 903, specifically, servo motor 2 is mounted in first base 10, and first base 10 is solid by bolt
It is scheduled on the upper surface of the first laminate 903, bearing 7 has second base 11, which is also mounted at the first laminate 903
Upper surface, disk 1 are located at the lateral position of the first laminate 903, and flange part 5 stretches out 903 certain distance of the first laminate, guarantee disk
1 can free oscillation crosswise, the inner boundary of disk 1 is pinching end, and outer boundary is free end.
In the present embodiment, disk 1 selects low-carbon steel material, outer diameter 600mm, internal diameter 150mm, thickness 2mm, conductivity δ
=1.7 μ Ω cm, elastic modulus E=200GPa, density p=7850Kg/m3, Poisson's ratio υ=0.3；Servo motor 2 selects peace river
The three-phase alternating-current servo motor of the model SGMAV-08ADA61 of Electric Machine Co., Ltd, power 0.75KW, rated speed are
3000r/min is configured with the serial photoelectric encoder 8 of 20 high-resolution, is increment type；Retarder 3 is produced using Xin Bao company
Planetary reduction gear, model VRB-090-7-K3-19HB16, reduction ratio 1:7；Shaft coupling 4 selects the production of meter Si meter company
MCSLCWK50 high torque clamp-type diaphragm type coupler；It is SGDV- that motor control box 6, which predominantly pacifies river company model,
The servo-driver of 5R5A11A, built-in Voltage stabilizing module；Bearing 7 selects the deep groove ball bearing of the model 6205ZZ of meter Si meter company,
The second base 11 constituted with aluminium alloy；The profile and two layers of stainless steel plate for 60mm × 60mm that support platform 9 is not waited by length
It builds.
The vibrational excitation mechanism is for motivating disk 1 to generate oscillation crosswise, including the conversion of current vortex actuator 12, first
Circuit 13 and signal generator 14, current vortex actuator 12 are the current vortex actuator based on electromagnetic force, are led by variable-current
The change of 1 surface current vortex of disk is caused to evoke the oscillation crosswise of disk 1, the iron core both ends of current vortex actuator 12 are about disk 1
Symmetrically, and close to the right hand edge of disk 1, signal generator 14 is connect by the first conversion circuit 15 with current vortex actuator 12,
Specifically, signal generator 14 is connect with the first conversion circuit 15, the coil of the first conversion circuit 15 and current vortex actuator 12
Connection is converted to the line of current vortex actuator 12 through the first conversion circuit 15 after signal generator 14 issues pulse excitation signal
Pulse current is enclosed, and then disk 1 is driven to vibrate.
The vibration control mechanism is used to inhibit the oscillation crosswise of disk 1, including eddy current damper 15 and the second conversion
Circuit 16, eddy current damper 15 are the eddy current damper based on electromagnetic force, the iron core both ends of eddy current damper 15 about
Disk 1 is symmetrical, and close to the left edge of disk 1, control assembly is connect by the second conversion circuit 16 with eddy current damper 15,
Specifically, control assembly is connect with the second conversion circuit 16, and the second conversion circuit 16 is connect with the coil of eddy current damper 15,
Control assembly changes the coil current of eddy current damper 15 by the second conversion circuit 16, generates the resistance for inhibiting disk 1 to vibrate
Buddhist nun's power.
Further, current vortex actuator 12 is fixed on table on the second laminate 904 of support platform 9 by third pedestal 17
Face is fixed on the second layer of support platform 9 by the 4th pedestal 18 than the part that the first laminate 903 is grown, eddy current damper 15
904 upper surface of plate is than the part that the first laminate 903 is grown, and current vortex actuator 12 and eddy current damper 15 are opposite.
Specifically, current vortex actuator 12 and eddy current damper 15 are made of silicon sheet core, coil, silicon sheet core
It is stacked by several E type silicon steel sheets, coiling；The iron core of current vortex actuator 12 is clamped by third pedestal 17, electric whirlpool
The iron core of damper 15 is clamped by the 4th pedestal 18, adjusts clamped height, third pedestal 17, the 4th bottom equipped with adjusting knob
Seat 18 is bolted on 904 upper surface of the second laminate of support platform 9.
In the present embodiment, current vortex actuator 12 and eddy current damper 15 are stacked using the silicon steel sheet of high magnetic permeability makees
For iron core, the copper wire of winding line footpath 0.59mm；Signal generator 14 selects the model of You Lide UNI-T company production
The polygamma function signal generator of UTG9002C, can produce the sine wave or impulse wave of 0.2Hz~2MHz, frequency error≤1%, most
Amplitude is 20V；First conversion circuit 15 and the second conversion circuit 16 have the function of voltage conversion and signal amplification.
The vibration detection mechanism includes laser displacement sensor 19 and Wireless Acceleration Sensor 20.
There are four laser displacement sensors 19, and each laser displacement sensor 19 includes measuring head and controller, mating control
Device processed is not shown, it can thus be assumed that 19 in figure refer to that measuring head, measuring head are symmetrically installed, and 1 surface of face disk, is separated by
Initial spacing is transmitted to control assembly after the vibration information of 19 test disks 1 of laser displacement sensor.
The measurement spacing of measuring head is adjusted for convenience, the Rotating Disk Vibration detection control apparatus of the present embodiment
Further include workbench 21, the workbench 21 include four second vertical supporting bars 2101 and two blocks of laminates, two blocks of laminates from
Top to bottm is respectively third laminate 2102 and the 4th laminate 2103, and first layer is distinguished in the upper end of four second vertical supporting bars 2101
Four angles of plate 2102 are fixedly connected, the lower part of four second vertical supporting bars 2101 respectively with four angles of the second laminate 2103
It is fixedly connected, the measuring head of laser displacement sensor 19 is disposed therein two root distances from the closer second vertical supporting bar of disk 1
On 2101, specifically, two of them measuring head is arranged on the left side on the closer second vertical supporting bar 2101 of disk 1, separately
Outer two measuring heads setting on the closer second vertical supporting bar 2101 of disk 1, passes through mobile working platform 21 on the right
The measurement spacing of adjustable measuring head；The measuring head of laser displacement sensor 19 is fixed on end face connecting plate 22, and end face connects
Fishplate bar 22 is slidably connected with the second vertical supporting bar 2101, through mobile end face connecting plate 22 on the second vertical supporting bar 2101
Position, the upright position of adjustable measuring head.
There are two the Wireless Acceleration Sensors 20, and Wireless Acceleration Sensor 20 is adsorbed in 1 surface of disk, specific logical
It crosses stickup magnetic support and is adsorbed in 1 surface of disk, measurement main shaft is consistent with the oscillation crosswise direction of disk 1, and two radio accelerations pass
20 initial position of sensor is connect about horizontal central line distribution symmetrical above and below, Wireless Acceleration Sensor 20 with radio network gateway 23, nothing
Gauze closes 23 and connect with control assembly.
Further, Wireless Acceleration Sensor 20 is the sensor node in Wireless Acceleration Sensor measuring system,
Built-in sensing module, power module, acquisition processing module, radio receiving transmitting module, after the oscillation crosswise information for detecting disk 1,
It is transferred to radio network gateway 23 by BeeNet network protocol, radio network gateway 23 is transmitted further to control assembly.
The detection of 20 both sensors of laser displacement sensor 19 and Wireless Acceleration Sensor can be carried out individually, work as survey
It when amount installation space is restricted, can individually be detected using Wireless Acceleration Sensor 20, be ground when dynamic characteristic need to be carried out to disk 1
When studying carefully, in order to avoid the change of mass loading bring architectural characteristic, can individually it be detected using laser displacement sensor 19.
In the present embodiment, the measuring head of laser displacement sensor 19 selects the LK-500 of Japanese Keyemce company production,
Optical maser wavelength is 670nm, maximum power 0.95mW, and matched LK-2500 controller is selected to carry out laser beam adjusting；Wirelessly
A101 single shaft Wireless Acceleration Sensor of the acceleration transducer 20 using the Jiaxing Bo Long company, range ± 10g, transmission rate are
250K BPS, communication distance is up to 100m, and 85 grams of weight, arranging in pairs or groups has the radio network gateway 23 of USB interface.
As shown in figure 5, the right hand edge and eddy current damper 15 of the actuation point 24 of current vortex actuator 12 in disk 1
Damping point 25 has four on 1 surface of disk due to being provided with four laser displacement sensors 19 in the left edge of disk 1
A laser detection point, respectively first laser test point 26, second laser test point 27, third laser detection point 28 and the 4th swash
Light detection point 29, due to being provided with two Wireless Acceleration Sensors 20, there are two acceleration detections on 1 surface of disk
Node, respectively the first acceleration detection node 30 and the second acceleration detection node 31.
The control assembly includes industrial personal computer 32, A/D capture card 33, conditioning circuit 34 and D/A transition card 35, industrial personal computer 32
It is connect by A/D capture card 33 with conditioning circuit 34, is connect by USB interface with radio network gateway 23, and pass through D/A transition card
35 connect with the second conversion circuit 16, and conditioning circuit 34 is connect with laser displacement sensor 19.
As described above, being converted to current vortex through the first conversion circuit 13 after signal generator 14 issues pulse excitation signal
The coil pulse electric current of actuator 12, and then disk 1 is driven to vibrate；The vibration information of 19 test disks 1 of laser displacement sensor
Afterwards, signal is handled by conditioning circuit 34, then industrial personal computer 32 is transmitted to by the acquisition of A/D capture card 33, radio acceleration passes
After sensor 20 detects vibration information, radio network gateway 23 is transferred to by BeeNet network protocol, industrial personal computer 32 passes through USB interface again
Data are read, and then both comparative analysis information, two of them sensor renewal rate are consistent, guarantees the letter of industrial personal computer 32
Breath compares；Industrial personal computer 32 runs control algolithm and exports control amount, converts a signal into analog quantity by D/A transition card 35, then lead to
The coil current that the second conversion circuit 16 changes eddy current damper 15 is crossed, the damping force for inhibiting disk 1 to vibrate is generated.
In the present embodiment, 12 32 paths capture cards of magnificent PCL-813B are ground in the selection of A/D capture card 33, and sample rate is
25kS/s；D/A transition card 35 is using the D/A transition card for grinding magnificent model PCL-727, built-in 12 bit resolution double buffering D/A conversion
Circuit is, it can be achieved that industrial personal computer exports instant conversion of the digital quantity to analog quantity.
As shown in fig. 1~fig. 5, the present embodiment additionally provides a kind of Rotating Disk Vibration detection control method, this method base
It is realized in above-mentioned apparatus, comprising the following steps:
Step 1: initialization each section parameter, is arranged 6 parameter of motor control box, motor control box 6 is made to control servo motor
2 drive disk 1 to stablize rotation.
Step 2: signal generator 14 generates pumping signal, current vortex actuator 12 is converted to through the first conversion circuit 13
Current signal in coil causes 1 near-surface region changes of magnetic field of disk, the current vortex and magnetic fields of generation in disk 1,
Electro-magnetic exciting force is generated, the oscillation crosswise of rotating circular disk 1 is evoked.
It is adopted after 34 filter and amplification of conditioning circuit through A/D Step 3: laser displacement sensor 19 detects vibration signal
The acquisition of truck 33 is transmitted to industrial personal computer.
Step 4: Wireless Acceleration Sensor 20 detects the vibration information of absorption position disk 1, assisted by BeeNet network
View is transferred to radio network gateway 23, and radio network gateway 23 is transferred to industrial personal computer 32.
Step 5: running control algolithm after 32 pairs of detection signals of industrial personal computer compare weighted analysis, output phase should be controlled
Amount is converted to analog quantity by D/A transition card 35, then changes the coil electricity of eddy current damper 15 through the second conversion circuit 16
Stream generates the vibration that damping force inhibits rotating circular disk 1.
It is appreciated that above-mentioned steps three and step 4 can carry out simultaneously.
In conclusion the present invention is by the surface of the measuring head face disk of laser displacement sensor, and will wirelessly accelerate
The surface of disk is arranged in degree sensor, carries out non-cpntact measurement, combining with wireless sensor contact using laser displacement sensor
Remote wireless transmission is measured, a variety of detection modes for avoiding coiling combine, and raising reliability is mutually authenticated, and multiple spot detection mentions
In high precision.
The above, only the invention patent preferred embodiment, but the scope of protection of the patent of the present invention is not limited to
This, anyone skilled in the art is in the range disclosed in the invention patent, according to the present invention the skill of patent
Art scheme and its inventive concept are subject to equivalent substitution or change, belong to the scope of protection of the patent of the present invention.
Claims (10)
1. Rotating Disk Vibration detection control apparatus, it is characterised in that: including disk, rotary drive mechanism, vibrational excitation mechanism,
Vibration control mechanism, vibration detection mechanism and control assembly, the disk is perpendicular to horizontal plane, the rotary drive mechanism and circle
Disk connection, for driving disc rotary；The vibrational excitation mechanism is for motivating disk to generate oscillation crosswise；The vibration control
Mechanism is used to inhibit the oscillation crosswise of disk；The vibration detection mechanism includes laser displacement sensor and radio acceleration sensing
Disk is arranged in device, the surface of the measuring head face disk of the laser displacement sensor, the Wireless Acceleration Sensor
Surface, and connect with radio network gateway；The control assembly respectively with vibration control mechanism, laser displacement sensor, radio network gateway
Connection.
2. Rotating Disk Vibration detection control apparatus according to claim 1, it is characterised in that: the rotary drive mechanism
Including servo motor, retarder, shaft coupling, flange part and motor control box, the servo motor carries photoelectric encoder, servo
The output shaft of motor and the input axis connection of retarder, the output shaft of the retarder pass through the connecting shaft of shaft coupling and flange part
Connection, the flange part are fixedly connected with disk, and the motor control box is connect with servo motor.
3. Rotating Disk Vibration detection control apparatus according to claim 2, it is characterised in that: described device further includes branch
Platform is supportted, the servo motor is fixed in support platform.
4. Rotating Disk Vibration detection control apparatus according to claim 1, it is characterised in that: the vibrational excitation mechanism
Including current vortex actuator, the first conversion circuit and signal generator, the iron core both ends of the current vortex actuator are about disk
Symmetrically, the signal generator is connect by the first conversion circuit with current vortex actuator.
5. Rotating Disk Vibration detection control apparatus according to claim 1, it is characterised in that: the vibration control mechanism
Including eddy current damper and the second conversion circuit, the iron core both ends of the eddy current damper are symmetrical about disk, the control
Component processed is connect by the second conversion circuit with eddy current damper.
6. Rotating Disk Vibration detection control apparatus according to claim 1-5, it is characterised in that: the control
Component includes industrial personal computer, A/D capture card, conditioning circuit and D/A transition card；
The industrial personal computer is connect by A/D capture card with conditioning circuit, is connect by USB interface with radio network gateway, and pass through
D/A transition card is connect with vibration control mechanism, and the conditioning circuit is connect with laser displacement sensor.
7. Rotating Disk Vibration detection control apparatus according to claim 1-5, it is characterised in that: described device
It further include workbench, the measuring head of the laser displacement sensor is arranged on workbench.
8. Rotating Disk Vibration detection control apparatus according to claim 7, it is characterised in that: the laser displacement sensing
The measuring head of device is fixed on the connecting plate of end face, and the vertical supporting bar of the end face connecting plate and workbench is slidably connected.
9. Rotating Disk Vibration detection control apparatus according to claim 1-5, it is characterised in that: described wireless
Acceleration transducer is adsorbed in disc surfaces, is built-in with sensing module, power module, acquisition processing module and wireless receiving and dispatching mould
Block.
10. Rotating Disk Vibration detects control method, it is characterised in that: the described method includes:
In rotary drive mechanism, motor control box controls servo motor and disk is driven to stablize rotation；
In vibrational excitation mechanism, signal generator generates pumping signal, is converted to current vortex actuator through the first conversion circuit
Current signal in coil, causes disc surfaces near zone changes of magnetic field, and the current vortex and magnetic fields generated in disk produces
Raw electro-magnetic exciting force, evokes the oscillation crosswise of rotating circular disk；
Laser displacement sensor detects vibration signal, after conditioning circuit filter and amplification, is transmitted to industry control through the acquisition of A/D capture card
Machine；
Wireless Acceleration Sensor detects the vibration information of absorption position disk, is transferred to wireless network by BeeNet network protocol
It closes, radio network gateway is transferred to industrial personal computer；
After industrial personal computer compares weighted analysis to detection signal, control algolithm is run, output phase answers control amount, turns by D/A
It changes card and is converted to analog quantity, then change the coil current of eddy current damper through the second conversion circuit, generate damping force and inhibit rotation
Turn the vibration of disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811158462.0A CN109084882B (en) | 2018-09-30 | 2018-09-30 | Rotary disc vibration detection control device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811158462.0A CN109084882B (en) | 2018-09-30 | 2018-09-30 | Rotary disc vibration detection control device and method |
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| CN109084882A true CN109084882A (en) | 2018-12-25 |
| CN109084882B CN109084882B (en) | 2023-09-26 |
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| CN110108787A (en) * | 2019-05-07 | 2019-08-09 | 电子科技大学 | A kind of rotating metallic component electromagnetic nondestructive device based on dynamic raw vortex |
| CN111323112A (en) * | 2020-04-03 | 2020-06-23 | 宜春学院 | Wireless monitoring device for rotary mechanical vibration |
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| CN109751040A (en) * | 2019-01-14 | 2019-05-14 | 东北大学 | A kind of drilling well self-excited vibration and stick slip vibration imitative experimental appliance |
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| CN110108787A (en) * | 2019-05-07 | 2019-08-09 | 电子科技大学 | A kind of rotating metallic component electromagnetic nondestructive device based on dynamic raw vortex |
| CN114174777A (en) * | 2019-07-30 | 2022-03-11 | 京瓷株式会社 | Vibrating meter and vibration detection method |
| CN111323112A (en) * | 2020-04-03 | 2020-06-23 | 宜春学院 | Wireless monitoring device for rotary mechanical vibration |
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