CN206348124U - A kind of rotating machinery vibrating on-Line Monitor Device - Google Patents
A kind of rotating machinery vibrating on-Line Monitor Device Download PDFInfo
- Publication number
- CN206348124U CN206348124U CN201621199275.3U CN201621199275U CN206348124U CN 206348124 U CN206348124 U CN 206348124U CN 201621199275 U CN201621199275 U CN 201621199275U CN 206348124 U CN206348124 U CN 206348124U
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- vibration
- sensor
- rotating machinery
- displacement sensor
- acceleration sensor
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Abstract
The utility model discloses a kind of rotating machinery vibrating on-Line Monitor Device, including by magnetic absorption rotating machinery housing inner and outer surfaces strength magnetic support, vibration displacement sensor I, described vibration displacement sensor I are installed on the strength magnetic support of shell inner surface and gather the vibration signal of the rotor-support-foundation system of rotating machinery；Vibration acceleration sensor I, the vibration signal of the housing of vibration acceleration sensor I collection rotating machineries are installed on the strength magnetic support of housing outer surface；The vibration displacement sensor II and vibration acceleration sensor II of measurement rotation axial displacement and acceleration are installed at the bearing spider of the rotary shaft of rotating machinery, described vibration displacement sensor I, vibration acceleration sensor I, vibration displacement sensor II and vibration acceleration sensor II is connected with data handling system, the data handling system vibration response curve of each part and related collection of illustrative plates under different operating modes according to the data analysis of each sensor.
Description
Technical field
The utility model is related to a kind of rotating machinery vibrating on-Line Monitor Device, belongs to rotating machinery vibrating technical field.
Background technology
Rotating machinery is the key equipment of the industrial departments such as electric power, petrochemical industry, aviation, with modern industry and science skill
The development of art, rotating machinery just towards maximization, high speed and automation direction development, because its is complicated, is operated in height
Under the mal-condition such as temperature, high speed and fluid structurecoupling, often there is the excessive vibration of amplitude, cause rotating machinery can not normal work
Make.For the preferably operation conditions of monitoring rotating machinery and and alarm, design a kind of rotating machinery vibrating on-line monitoring method
With experimental rig.
Experimental rig measures the vibration signal of collection rotary machine rotor, support and housing by each sensor, will gather
The vibratory response that software analysis processing of the signal arrived Jing Guo data handling system obtains each part under variant operating condition is bent
Line and related collection of illustrative plates, build and are based on SVM classifier rotating machinery vibrating response database under different operating mode excitations, measurement in real time is adopted
The vibration signal of collection is compared with database, and early warning is carried out if superscalar data.
There are some substantially not enough, such as publication numbers in the method for traditional on-line monitoring characteristic of rotating machines vibration signal
Described in CN104823035A patent, discrimination index DI values and vibration velocity are obtained by extracting the vibrational waveform of rotating machinery,
Contrasted with stratum set in advance, synthetic determination rotating machinery whether there is failure.The program does not illustrate monitoring point and used
Sensor type, is disturbed by other signals sometimes, causes the untrue property of data, it may appear that the situation of erroneous judgement, and point
Distinguish failsafe reason.Described in publication number CN105527077A patent, utility model one kind is used for whether detecting rotating machinery
Influenceed by periodic signal and noise and impact, initial signal and i time-ofday signals are subtracted each other into obtain residual signals, then extract residual
The statistics numerical value of difference signal is used as characteristic value.Carry out whether analysis vibration performance changes using characteristic value.This scheme application system
Meter learns processing residual signals, there is certain inaccuracy, and it is failure cause that can not be identified.Publication No.
CN202974423U patent, is related to a kind of overall machine vibration monitoring system based on LabVIEW, and the patent is not directed to sensing
The arrangement mounting means of device.Described in publication number CN203824579U patent, its device only detects the vibration position of rotating machinery shaft
Move and rotating speed, it is impossible to accurately monitor the running situation of whole rotating machinery on-line.
Some patents are related to rotating machinery vibrating measuring method, and but imperfect on-line monitoring vibration of rotor system is special
The patent of the experimental rig, such as Publication No. CN105806474A of property, discloses a kind of rotating machinery vibrating measuring method, rotating speed
The interruption for the communication interface that frequency passes through microcontroller, makes microcontroller obtain turning for the vibration of the rotating machinery of required measurement
Fast frequency x；The interruption for the input interface that speed-frequency passes through microcontroller, makes microcontroller receive the rotating speed with electric rotating machine
With the rotating speed electric signal of frequency, the cycle T of rotating speed electric signal is measured by the timer of microcontroller；Clock signal exports step：
The clock signal that pwm circuit output frequency by microcontroller is nx/T, is x/T for tracking bandwidth-limited circuit output frequency
Measurement signal.
The application of rotating machinery is more and more extensive, and power and speed are increased substantially, rotating machinery internal structure, operating mode ring
Border is complicated, and on-line monitoring characteristic of rotating machines vibration signal is more difficult, and existing detection technique can not show rotating machinery
Vibration response curve and related collection of illustrative plates during operation.
Utility model content
The purpose of this utility model in order to overcome the above-mentioned deficiencies of the prior art, discloses a kind of rotating machinery vibrating online
Monitoring device；Experimental rig measures the vibration signal of collection rotary machine rotor and housing by each sensor, by what is collected
Software analysis processing of the signal Jing Guo data handling system obtain under variant operating condition the vibration response curve of each part and
Related collection of illustrative plates, builds and is based on SVM classifier rotating machinery vibrating response database under different operating mode excitations, measurement collection in real time
Vibration signal is compared with database, and early warning is carried out if superscalar data.
To achieve the above object, the technical solution adopted in the utility model is as follows：
Rotating machinery vibrating monitors experimental rig on-line, including by magnetic absorption in rotating machinery housing inner and outer surfaces
Strength magnetic support, on the strength magnetic support of shell inner surface install vibration displacement sensor I, described vibration displacement sensor
The radial vibration displacement signal of the rotor-support-foundation system of I collection rotating machineries；Vibration is installed on the strength magnetic support of housing outer surface
Acceleration transducer I, the housing of described vibration acceleration sensor I collection rotating machineries axially and radially believe by vibration acceleration
Number；Measurement rotary shaft radial displacement and measurement axial direction, radial acceleration are installed at the bearing spider of the rotary shaft of rotating machinery
Vibration displacement sensor II and vibration acceleration sensor II, described vibration displacement sensor I, vibration acceleration sensor
I, vibration displacement sensor II and vibration acceleration sensor II are connected with data handling system, described data handling system
According to the data analysis of each sensor under different operating modes the vibration response curve of each part and related collection of illustrative plates.
Further, described vibration displacement sensor I include it is multiple, described multiple vibration displacement sensor I along
Circumferencial direction and the axis direction distribution of shell inner surface.Along the circumferential direction being symmetrically installed multiple vibration displacement sensor I can be with
The accurate radial vibration signal for obtaining single impeller in rotating shaft, multiple vibration displacement sensor I are installed in the axial direction to be surveyed
The radial vibration signal of whole rotor-support-foundation system is measured, described vibration displacement sensor I senses for wireless non-contacting Laser Displacement
Device.
The implication that circumferencial direction and axis direction along shell inner surface described here is distributed refers to, along rotary shaft
Axis direction, multi-turn is distributed with vibration displacement sensor I, and multiple vibration displacement sensor I are distributed with each circle again, and multiple
Vibration displacement sensor I is relative to axisymmetrical.
Further, described vibration acceleration sensor I includes multiple, described multiple vibration acceleration sensor I
It is distributed along the circumferencial direction and axis direction of shell inner surface, multiple vibration accelerations is installed in circumferencial direction and axis direction
Sensor I can accurately measure the axially and radially vibration acceleration signal of whole rotating machinery housing.
The implication that circumferencial direction and axis direction along shell inner surface described here is distributed refers to, along axis side
To again multi-turn is distributed with vibration acceleration sensor I, and multiple vibration acceleration sensor I, and multiple vibrations is distributed with each circle
Acceleration transducer I is relative to axisymmetrical.
Further, described vibration displacement sensor I and vibration acceleration sensor I are spaced point in the axial direction
Cloth, more further and more accurate can obtain vibration signal.
Further, described vibration displacement sensor II consolidates including multiple, described multiple vibration displacement sensor II
Bearing spider inner surface is scheduled on, is symmetrically installed along the circumferencial direction and axis direction of bearing spider, measurement is radially of the axis of rotation
Vibration displacement signal.
Further, described vibration acceleration sensor II includes multiple, described multiple vibration acceleration sensors
II is fixed in antero posterior axis bearing by magetic indicator joint, measures the axial acceleration and radial acceleration of rotary shaft.
Further, along the axis direction of power transmission shaft, vibration is provided with the front and rear surfaces of antero posterior axis bearing and is accelerated
Spend sensor II.
Further, described vibration displacement sensor I uses laser displacement sensor.
Further, described vibration displacement sensor II uses eddy current displacement sensor.
Data processing method of the present utility model is as follows：
By vibration displacement sensor I, vibration acceleration sensor I, vibration displacement sensor II and vibration acceleration sensing
Each part shakes under the variant operating condition of software analysis processing acquisition of the signal that device II is collected Jing Guo data handling system
Dynamic response curve and related collection of illustrative plates, build and are based on SVM classifier rotating machinery vibrating response database under different operating mode excitations, real
When measurement collection vibration signal and database in data be compared, if superscalar data after comparing, carry out early warning；Not yet
There is exceeded then normal work.
The selection of rotating machinery measuring point follows at following 2 points：
One is that measuring point can fully reflect the running status of rotary machine rotor, with signal stabilization to spies such as Fault-Sensitives
Point；
Two be that selected measuring point is easily installed and tested, and does not disturb the running status of rotating machinery as far as possible.Consider
The factors such as rotating machinery structure, noise jamming, wireless vibration sensing is arranged symmetrically in rotating machinery surface of shell axial and circumferential
Device.Shell inner surface vibration displacement sensor is circumferentially symmetrically installed, and installs n according to rotor structure difference vertically.
The utility model measures the vibration signal of collection rotary machine rotor, support and housing by each sensor, because
The vibration signal of these three positions represents whole rotating machinery substantially, and the signal more accurate measurements for measuring three positions rotate
Mechanical oscillation, the software analysis processing by the signal collected Jing Guo data handling system obtains each portion under variant operating condition
The vibration response curve of part and related collection of illustrative plates, build and are based on SVM classifier rotating machinery vibrating number of responses under different operating mode excitations
According to storehouse, the vibration signal of measurement collection in real time is compared with database, and early warning is carried out if superscalar data.
The beneficial effects of the utility model are as follows：
Monitor the running status of rotating machinery on-line using vibration signal, set up the vibration signal data storehouse of rotating machinery,
Normal operating condition and exceeded malfunction are identified, the classification using SVMs to mechanical oscillation signal, therefore
The SVM models of various vibration signals are set up, the vibration signal under rotating machinery different conditions is analyzed.Passed in real time by various
The vibration signal of sensor measurement collection is compared with database, and early warning is carried out if superscalar data.
The utility model can be widely used for the rotating machinery of the industries such as electric power, chemical industry, aviation, water conservancy, particularly with nuclear power,
Lightweight, noise, stability and reliability requirement are high, installing space is narrow and small, building ring for ship, aircraft, precision optical machinery equipment etc.
The industry fields such as the severe harshness in border, there is very wide popularizing application prospect.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the utility model experimental rig structural representation；
The implication of each label is in accompanying drawing：1. data handling system, 2. rotating machinery housings, 3. rotor-support-foundation systems, 4i. measurements
The wireless non-contacting Laser Displacement sensor of rotor, 5i. measurement housing wireless vibration acceleration transducers, 6i. measurement rotations
The vibration acceleration sensor of axle, 7i. measures the eddy current displacement sensor of rotary shaft, 8. rotary shafts, 9. shaft couplings, 10. changes
Fast device, 11. motors, 12. bearing spiders.
A1, A2 ... An are wireless vibration acceleration transducer layout points, and B1, B2 ... Bn are wireless non-contacting Laser Displacement
Sensor, C1, C2 ... Cn is eddy current displacement sensor layout points, and D1, D2 ... Dn are acceleration transducer layout points.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
The utility model proposes a kind of new rotating machinery vibrating on-line monitoring experimental rig and analysis method, pass through sensing
Device measurement housing, the vibration signal of support and rotor, by the signal collected by software analysis processing obtain design parameter and
Related collection of illustrative plates, the different lower rotating machinery vibratory response databases of operating mode excitation, in real time measurement collection are built based on SVM classifier
Vibration signal compared with database, early warning is carried out if the fault type in database is belonged to.
Experimental rig includes rotating machinery housing 2, rotor-support-foundation system 3, rotary shaft 8, shaft coupling 9, speed changer 10, driving electricity
Machine 11 and the coaxial line of bearing spider 12 are installed, and when experimental rig is run, motor 11 rotates, motor 11 and speed changer 10
Input shaft be connected to change rotating speed, rotary shaft 8 is coupled with the output shaft of speed changer 10 by shaft coupling 9, rotary shaft 8 with turn
Subsystem 3 couples.
In the outer surface axial and circumferential symmetric position arrangement wireless vibration acceleration transducer 2 of rotating machinery housing 2；In rotation
Turn the inner surface of mechanical hull 4 axially disposed n and be circumferentially arranged symmetrically wireless non-contacting Laser Displacement sensor；Measurement
The eddy current displacement sensor of rotary shaft 8 is fixed on bearing spider 12, and the vibration acceleration sensor of measurement rotary shaft 8 passes through
Magetic indicator joint is fixed on bearing block 12.
Circumferencial direction and axis direction distribution of the wireless vibration acceleration transducer 2 along shell inner surface are meant that
Refer to, along axis direction, multi-turn is distributed with wireless vibration acceleration transducer 2, and each circle is distributed with multiple wireless vibrations and added again
Velocity sensor 2, and multiple wireless vibration acceleration transducers 2 are relative to axisymmetrical.
What circumferencial direction and axis direction of the wireless non-contacting Laser Displacement sensor along shell inner surface were distributed contains
Justice refers to, along axis direction, and multi-turn is distributed with wireless non-contacting Laser Displacement sensor, and multiple nothings are distributed with each circle again
Line non-contacting Laser Displacement sensor, and wireless non-contacting Laser Displacement sensor is relative to axisymmetrical.
Wireless vibration acceleration transducer 2 and wireless non-contacting Laser Displacement sensor are spaced point in the axial direction
Cloth.
Data processing method of the present utility model is as follows：
By vibration displacement sensor I, vibration acceleration sensor I, vibration displacement sensor II and vibration acceleration sensing
Each part shakes under the variant operating condition of software analysis processing acquisition of the signal that device II is collected Jing Guo data handling system
Dynamic response curve and related collection of illustrative plates, build and are based on SVM classifier rotating machinery vibrating response database under different operating mode excitations, real
When measurement collection vibration signal and database in data be compared, if superscalar data after comparing, carry out early warning；Not yet
There is exceeded then normal work.
The utility model measures the vibration signal of collection rotary machine rotor, support and housing by each sensor, because
The vibration signal of these three positions represents whole rotating machinery substantially, and the signal more accurate measurements for measuring three positions rotate
Mechanical oscillation, the software analysis processing by the signal collected Jing Guo data handling system obtains each portion under variant operating condition
The vibration response curve of part and related collection of illustrative plates, build and are based on SVM classifier rotating machinery vibrating number of responses under different operating mode excitations
According to storehouse, the vibration signal of measurement collection in real time is compared with database, and early warning is carried out if superscalar data.
The specific mounting means of each sensor is as shown in Figure 1：
The vibration acceleration sensor 5i of measurement rotating machinery housing, vibration acceleration sensing are installed in A1, A2 ... at An
Device is connected through a screw thread on the strength magnetic support of the outer surface of rotating machinery housing 4.
The laser displacement sensor 4i of measurement rotor-support-foundation system is installed in B1, B2 ..., laser displacement sensor passes through spiral shell at Bn
Line connection is on the strength magnetic support of the inner surface of rotating machinery housing 4.
The eddy current displacement sensor 7i of measurement rotary shaft is installed in C1, C2 ..., it is fixed on the interior of bearing spider at Cn
Surface, is set along the radial direction and axial direction of bearing spider.
The vibration acceleration sensor 6i of measurement rotary shaft is installed in D1, D2 ..., before being fixed on by magetic indicator joint at Dn
On rear bearing block, along the axis direction of power transmission shaft, vibration acceleration sensing is provided with the front and rear surfaces of antero posterior axis bearing
Device；Measure the axial acceleration and radial acceleration of rotary shaft.
I represents the positive integer from 1 to n.
Above-mentioned embodiment be to illustrate example that operation principle of the present utility model is lifted, be not to this practicality newly
The restriction of the embodiment of type；For those skilled in the art, the utility model can have a variety of changes and change, all
Be the change done in the thought range of technical solutions of the utility model and change protection domain of the present utility model it
It is interior.
Claims (9)
1. a kind of rotating machinery vibrating on-Line Monitor Device, it is characterised in that including by magnetic absorption in rotating machinery housing
The strength magnetic support of inner and outer surfaces, installs vibration displacement sensor I, described vibration on the strength magnetic support of shell inner surface
The radial vibration displacement signal of the rotor-support-foundation system of displacement transducer I collection rotating machineries；Positioned at the strength magnetic support of housing outer surface
Upper installation vibration acceleration sensor I, the housing of described vibration acceleration sensor I collection rotating machineries is radial and axial to shake
Dynamic acceleration signal；Measurement rotary shaft radial displacement and axial direction, radial direction are installed at the bearing spider of the rotary shaft of rotating machinery
The vibration displacement sensor II of acceleration and vibration acceleration sensor II, described vibration displacement sensor I, vibration acceleration
Sensor I, vibration displacement sensor II and vibration acceleration sensor II are connected with data handling system, at described data
Reason the system vibration response curve of each part and related collection of illustrative plates under different operating modes according to the data analysis of each sensor.
2. rotating machinery vibrating on-Line Monitor Device as claimed in claim 1, it is characterised in that described vibration displacement sensing
Device I include it is multiple, along the axis direction of rotary shaft, multi-turn is distributed with vibration displacement sensor I, and each circle is distributed with multiple again
Vibration displacement sensor I, and multiple vibration displacement sensor I are relative to axisymmetrical.
3. rotating machinery vibrating on-Line Monitor Device as claimed in claim 1, it is characterised in that described vibration acceleration is passed
Sensor I include it is multiple, along the axis direction of rotary shaft, multi-turn is distributed with vibration acceleration sensor I, and each circle is distributed with again
Multiple vibration acceleration sensor I, and multiple vibration acceleration sensor I are relative to axisymmetrical.
4. rotating machinery vibrating on-Line Monitor Device as claimed in claim 1, it is characterised in that described vibration displacement sensing
Device I and vibration acceleration sensor I are spaced apart in the axial direction.
5. rotating machinery vibrating on-Line Monitor Device as claimed in claim 1, it is characterised in that described vibration displacement sensing
Device II include it is multiple, described multiple vibration displacement sensor II are fixed on bearing spider inner surface, along the circumference of bearing spider
Direction and axis direction are symmetrically installed, and measure vibration displacement signal radially of the axis of rotation.
6. rotating machinery vibrating on-Line Monitor Device as claimed in claim 1, it is characterised in that described vibration acceleration is passed
Sensor II include it is multiple, described multiple vibration acceleration sensor II are fixed on the front and back bearings of rotary shaft by magetic indicator joint
On seat.
7. rotating machinery vibrating on-Line Monitor Device as claimed in claim 6, it is characterised in that along the axis side of power transmission shaft
To being provided with vibration acceleration sensor II in the front and rear surfaces of antero posterior axis bearing.
8. rotating machinery vibrating on-Line Monitor Device as claimed in claim 1, it is characterised in that described vibration displacement sensing
Device I uses laser displacement sensor.
9. rotating machinery vibrating on-Line Monitor Device as claimed in claim 1, it is characterised in that described vibration displacement sensing
Device II uses eddy current displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199275.3U CN206348124U (en) | 2016-10-28 | 2016-10-28 | A kind of rotating machinery vibrating on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199275.3U CN206348124U (en) | 2016-10-28 | 2016-10-28 | A kind of rotating machinery vibrating on-Line Monitor Device |
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| Publication Number | Publication Date |
|---|---|
| CN206348124U true CN206348124U (en) | 2017-07-21 |
Family
ID=59316187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621199275.3U Expired - Fee Related CN206348124U (en) | 2016-10-28 | 2016-10-28 | A kind of rotating machinery vibrating on-Line Monitor Device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206348124U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568565A (en) * | 2016-10-28 | 2017-04-19 | 山东大学 | Rotating machine vibration on-line monitoring device and rotating machine vibration on-line monitoring method |
| CN108106559A (en) * | 2017-12-27 | 2018-06-01 | 西安电子科技大学 | A kind of precision bearing system radial direction rotating accuracy laser measurement system and method |
| CN108871172A (en) * | 2018-09-03 | 2018-11-23 | 佛山职业技术学院 | A kind of ball milling machine vibration and protection system |
-
2016
- 2016-10-28 CN CN201621199275.3U patent/CN206348124U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568565A (en) * | 2016-10-28 | 2017-04-19 | 山东大学 | Rotating machine vibration on-line monitoring device and rotating machine vibration on-line monitoring method |
| CN106568565B (en) * | 2016-10-28 | 2020-01-07 | 山东大学 | Online monitoring device and method for rotary machine vibration |
| CN108106559A (en) * | 2017-12-27 | 2018-06-01 | 西安电子科技大学 | A kind of precision bearing system radial direction rotating accuracy laser measurement system and method |
| CN108106559B (en) * | 2017-12-27 | 2019-11-19 | 西安电子科技大学 | A kind of precision bearing system radial direction rotating accuracy laser measurement system and method |
| CN108871172A (en) * | 2018-09-03 | 2018-11-23 | 佛山职业技术学院 | A kind of ball milling machine vibration and protection system |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20211028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |