CN206020338U - A kind of Wind turbines bolt fracture monitoring device - Google Patents
A kind of Wind turbines bolt fracture monitoring device Download PDFInfo
- Publication number
- CN206020338U CN206020338U CN201620955780.XU CN201620955780U CN206020338U CN 206020338 U CN206020338 U CN 206020338U CN 201620955780 U CN201620955780 U CN 201620955780U CN 206020338 U CN206020338 U CN 206020338U
- Authority
- CN
- China
- Prior art keywords
- wind turbines
- monitoring device
- signal
- bolt fracture
- fracture monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/30—Retaining components in desired mutual position
- F05B2260/301—Retaining bolts or nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/83—Testing, e.g. methods, components or tools therefor
Abstract
A kind of Wind turbines bolt fracture monitoring device, including main frame, signal preamplifier and acoustic emission sensor, passes through cable connection respectively between the main frame and signal preamplifier, signal preamplifier and acoustic emission sensor.The Wind turbines bolt fracture monitoring device that the utility model is provided, there is the function of 16 tunnel acoustic emission signal on-line monitorings, only need a main frame just can complete the fracture monitoring of 8 significant points bolts of a set of Wind turbines, device can carry out installation and deployment on the premise of not transforming to Wind turbines, apparatus structure is simple, high degree of automation.Meanwhile, each monitoring point is designed using dual sensor redundancy, monitoring result is more accurate.
Description
Technical field
The utility model is related to a kind of bolt fracture monitoring device, more particularly to a kind of Wind turbines based on sound emission
Internal-flange bolt break monitoring device.
Background technology
In recent years, the installation quantity of Wind turbines is more and more, and the problem of exposed Wind turbines is also more and more therewith
Many.Wind turbines belong to heavy mechanical equipment, and for plant equipment, bolt plays vital effect.In recent years, by
In bolt problem caused fall blade, tower fractures etc. and to happen occasionally.The mode that Traditional Man is patrolled and examined is less efficient, time-consuming takes
Power, when particularly carrying out manual inspection to wind-powered machine unit hub bolt, it is necessary to carries out in the state of Wind turbines are shut down, seriously
Constrain the production efficiency of Wind turbines.Therefore, it is badly in need of a kind of Wind turbines bolt fracture automatic monitoring system of automation.
Utility model content
The purpose of this utility model is the defect for overcoming prior art, there is provided a kind of simple structure, high degree of automation,
The accurate Wind turbines bolt fracture monitoring device of monitoring result.
For achieving the above object, the utility model employs following technical scheme：
A kind of Wind turbines bolt fracture monitoring device, including main frame 1, signal preamplifier 2 and acoustic emission sensor
3, pass through cable 4 between the main frame 1 and signal preamplifier 2, signal preamplifier 2 and acoustic emission sensor 3 respectively
Connection.The signal preamplifier 2 includes base 22 and the second housing 21 above base 22, inside the housing 21
It is provided with second circuit structure, a side 23 of housing 21 is provided with the second port 24 for signal input, defeated for signal
The 3rd port 25 for going out, and the power interface 27 and power switch 26 for power input；Use is additionally provided with the base 22
In the through hole 28 for installing fixation.
Further, the side 23 is provided with 4 second ports 24 and 4 the 3rd ports 25.
Further, the main frame 1 and is located at by the first housing 12, the guidance panel 11 being located in front of the first housing 12
The the first circuit structure composition electrically connected inside first housing 12 and with guidance panel 11；The guidance panel 11 is provided with use
First port 111 in signal input, the display 112 for display image, the button 113 for entering the operating instructions, with
And the power supply indicator 114 for indicating operating status, malfunction indicator lamp 115 and alarm indicator 116.
Further, 16 first ports 111 are provided with the guidance panel 11.
Further, 6 buttons 113 are provided with the guidance panel 11, be respectively used to input " on ", D score, " left side ",
" right side ", " determination " and " exiting " instructs.
Further, the Wind turbines bolt fracture monitoring device is provided with 16 signal preamplifiers 2 altogether, before each two
Signal amplifier 2 is put for one group, one group is wherein installed on wind-powered machine unit hub flange, the root of 3 blades of Wind turbines respectively pacifies
Fill one group, bottom fixed connection place respectively one group of the installation of the section tower of Wind turbines 4.
Further, the acoustic emission sensor 3 includes the shell 31 of cylindrical shape, and the top of the shell 31 is provided with lid
32, side is provided with the 4th port 34 of perceptual signal for exporting, and bottom outside is provided with magnet ring 33, and inside is provided with piezoelectric ceramics
Piece；The bottom surface of the magnet ring 33, the bottom surface of piezoelectric ceramic piece are concordant with the bottom surface of shell 31.
The Wind turbines bolt fracture monitoring device that the utility model is provided, with 16 tunnel acoustic emission signal on-line monitorings
Function, it is only necessary to which a main frame just can complete the fracture monitoring of 8 significant points bolts of a set of Wind turbines, and device can be not
Installation and deployment are carried out to Wind turbines on the premise of transforming, and apparatus structure is simple, high degree of automation.Meanwhile, to each
Monitoring point is designed using dual sensor redundancy, and monitoring result is more accurate.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of Wind turbines bolt fracture monitoring device of the utility model；
Fig. 2 is a kind of main frame overall structure diagram of Wind turbines bolt fracture monitoring device of the utility model；
Fig. 3 is that a kind of signal preamplifier overall structure of Wind turbines bolt fracture monitoring device of the utility model is shown
It is intended to；
Fig. 4 is that a kind of acoustic emission sensor overall structure of Wind turbines bolt fracture monitoring device of the utility model is illustrated
Figure；
Fig. 5 is that a kind of acoustic emission sensor deployed position of Wind turbines bolt fracture monitoring device of the utility model is illustrated
Figure；
Fig. 6 is that a kind of bolt fracture signal detection flow process of Wind turbines bolt fracture monitoring device of the utility model is shown
It is intended to.
Specific embodiment
Below in conjunction with accompanying drawing 1 to 6, a kind of tool of Wind turbines bolt fracture monitoring device of the utility model is further illustrated
Body embodiment.A kind of Wind turbines bolt fracture monitoring device of the utility model is not limited to the following description.
As shown in figure 1, be a kind of overall structure signal of Wind turbines bolt fracture monitoring device of the utility model, including
Main frame 1, signal preamplifier 2 and acoustic emission sensor 3, between the main frame 1 and signal preamplifier 2, advance signal
Connected by cable 4 between amplifier 2 and acoustic emission sensor 3.
As shown in Fig. 2 being a kind of main frame overall structure signal of Wind turbines bolt fracture monitoring device of the utility model
Figure, the main frame 1 is by the first housing 12, the guidance panel 11 being located in front of the first housing 12, and is located in the first housing 12
Portion the first circuit structure composition electrically connected with guidance panel 11；The guidance panel 11 is provided with for signal input
Single port 111, the display 112 for display image, the button 113 for entering the operating instructions, and be used for indicating work
The power supply indicator 114 of state, malfunction indicator lamp 115 and alarm indicator 116.16 are provided with the guidance panel 11
Single port 111.Be provided with 6 buttons 113 on the guidance panel 11, be respectively used to input " on ", D score, "left", "right",
" determination " and " exiting " is instructed.The main frame 1 has 16 passage acoustic emission signal detectabilities, adopts with acoustic emission signal data
The functions such as collection, record analysis, logic decision, display alarm.
As shown in figure 3, being that a kind of signal preamplifier 2 of Wind turbines bolt fracture monitoring device of the utility model is whole
Body structural representation, the signal preamplifier 2 include base 22 and the second housing 21 above base 22, the shell
Second circuit structure is provided with inside body 21, and a side 23 of housing 21 is provided with the second port 24 for signal input, uses
In the 3rd port 25 of signal output, and the power interface 27 and power switch 26 for power input；On the base 22
It is additionally provided with for installing fixed through hole 28.The side 23 is provided with 4 second ports 24 and 4 the 3rd ports 25.Described
There are signal preamplifier 24 passage acoustic emission signal enlarging functions, Main Function to collect acoustic emission sensor 3
Faint acoustic emission signal is amplified, and the first port 111 of long-distance transmissions to main frame 1.
As shown in figure 4, being a kind of acoustic emission sensor entirety of Wind turbines bolt fracture monitoring device of the utility model
Structural representation, the acoustic emission sensor 3 include the shell 31 of cylindrical shape, and the top of the shell 31 is provided with lid 32, side
Face is provided with the 4th port 34 of perceptual signal for exporting, and bottom outside is provided with magnet ring 33, and inside is provided with piezoelectric ceramic piece；Described
The bottom surface of magnet ring 33, the bottom surface of piezoelectric ceramic piece are concordant with the bottom surface of shell 31.
As shown in figure 5, being that a kind of acoustic emission sensor 3 of Wind turbines bolt fracture monitoring device of the utility model is disposed
Position view, is provided with 16 signal preamplifiers 2 altogether, and each two signal preamplifier 2 is one group, wherein Wind turbines
One group is installed on wheelboss flange, the root of 3 blades of Wind turbines respectively fix by one group of installation, the bottom of the section tower of Wind turbines 4
One group is installed respectively in junction.
Meanwhile, two signal preamplifiers 2 are installed inside wind-powered machine unit hub, for being arranged on Wind turbines wheel
The signal of 8 collections of acoustic emission sensor 3 of the root of hub flange blade is amplified, and by wire transmission to main frame 1；?
Two signal preamplifiers 2 are installed in Wind turbines tower, are sent out for 8 sound to saving installed in Wind turbines 4 in tower
The signal for penetrating the collection of sensor 3 is amplified, and by wire transmission to main frame 1.First port 111 and the 3rd port 25,
Between Two-port netwerk 24 and the 4th port 34, it is preferred to use coaxial cable is attached as cable 4.
The Wind turbines bolt fracture monitoring device that the utility model is provided, with 16 tunnel acoustic emission signal on-line monitorings
Function, it is only necessary to which a main frame 1 just can complete the fracture monitoring of 8 significant points bolts of a set of Wind turbines, can be not right
Wind turbines carry out installation and deployment on the premise of being transformed, apparatus structure is simple, high degree of automation.
As shown in fig. 6, being a kind of bolt fracture signal detection of Wind turbines bolt fracture monitoring device of the utility model
Schematic flow sheet, comprises the following steps：
(1) start and system initialization；
(2) monitor whether each road sensor signal produces bolt fracture warning？If having, (3) are gone to step；
(3) judge whether alarm logging is zero in same group of signal alarm register of the road sensor signal？If so, turn
Step (4)；If it is not, going to step (6)；
(4) judge the corresponding warning register alarm logging of alarm signal whether superthreshold？If so, (5) are gone to step；If
No, go to step (7)；The preferred value of the threshold value is 3～10；
(5) output transducer failure alarm signal；
(6) bolt fracture alarm signal is exported；
(7) the corresponding warning register alarm logging value of alarm signal adds 1, goes to step (2).
The Wind turbines bolt fracture monitoring device that the utility model is provided, is sent out by arranging 2 sound in each test point
The Redundancy Design of sensor is penetrated, the result that two acoustic emission sensors are produced is carried out combining and is sentenced card, effectively not only can be reduced
The alert, probability of happening of false alarm is failed to report, discovery sensor failure can also be reported to the police in time so that detect that function is richer
Rich, testing result is more accurate.
Above content is with reference to specific preferred embodiment further detailed description of the utility model, it is impossible to
Identification is of the present utility model to be embodied as being confined to these explanations.Ordinary skill for the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should be all regarded
For belonging to protection domain of the present utility model.
Claims (7)
1. a kind of Wind turbines bolt fracture monitoring device, including main frame (1), signal preamplifier (2) and voice sending sensor
Device (3), divides between main frame (1) and signal preamplifier (2), signal preamplifier (2) and acoustic emission sensor (3)
Not Tong Guo cable (4) connect, it is characterised in that：Described signal preamplifier (2) include base (22) and are located at base (22)
Second circuit structure is provided with inside second housing (21) of top, described housing (21), on a side (23) of housing (21)
It is provided with the second port (24) for signal input, is used for the 3rd port (25) of signal output, and for power input
Power interface (27) and power switch (26)；It is additionally provided with base (22) for installing fixed through hole (28).
2. Wind turbines bolt fracture monitoring device according to claim 1, it is characterised in that：Set on side (23)
There are 4 second ports (24) and 4 the 3rd ports (25).
3. Wind turbines bolt fracture monitoring device according to claim 1 and 2, it is characterised in that：Main frame (1) by
First housing (12), the guidance panel (11) being located in front of the first housing (12), and be located at the first housing (12) internal and with
The first circuit structure composition that guidance panel (11) is electrically connected；Guidance panel (11) are provided with for signal input first
Port (111), the display (112) for display image, the button (113) for entering the operating instructions, and be used for indicating
The power supply indicator (114) of working condition, malfunction indicator lamp (115) and alarm indicator (116).
4. Wind turbines bolt fracture monitoring device according to claim 3, it is characterised in that：Guidance panel (11)
On be provided with 16 first ports (111).
5. Wind turbines bolt fracture monitoring device according to claim 4, it is characterised in that：Guidance panel (11)
On be provided with 6 buttons (113), be respectively used to input " on ", D score, "left", "right", " determination " and " exiting " instruct.
6. Wind turbines bolt fracture monitoring device according to claim 5, it is characterised in that：The Wind turbines bolt
Break monitoring device is provided with 16 signal preamplifiers (2) altogether, and each two signal preamplifier (2) is one group, its apoplexy
Install on group of motors wheelboss flange one group, the root of 3 blades of Wind turbines the bottom that a group, Wind turbines 4 save tower is respectively installed
One group is installed respectively in portion fixed connection place.
7. Wind turbines bolt fracture monitoring device according to claim 6, it is characterised in that：The acoustic emission sensor
(3) include cylindric shell (31), at the top of shell (31), be provided with lid (32), side is provided with and is perceived for output
The 4th port (34) of signal, bottom outside are provided with magnet ring (33), and inside is provided with piezoelectric ceramic piece；The bottom surface of magnet ring (33),
The bottom surface of piezoelectric ceramic piece is concordant with the bottom surface of shell (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955780.XU CN206020338U (en) | 2016-08-26 | 2016-08-26 | A kind of Wind turbines bolt fracture monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955780.XU CN206020338U (en) | 2016-08-26 | 2016-08-26 | A kind of Wind turbines bolt fracture monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206020338U true CN206020338U (en) | 2017-03-15 |
Family
ID=58252544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620955780.XU Expired - Fee Related CN206020338U (en) | 2016-08-26 | 2016-08-26 | A kind of Wind turbines bolt fracture monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206020338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296504A (en) * | 2018-10-15 | 2019-02-01 | 浙江运达风电股份有限公司 | A kind of state monitoring apparatus of control system of wind turbines and its bolt group |
-
2016
- 2016-08-26 CN CN201620955780.XU patent/CN206020338U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296504A (en) * | 2018-10-15 | 2019-02-01 | 浙江运达风电股份有限公司 | A kind of state monitoring apparatus of control system of wind turbines and its bolt group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20170826 |