CN108386323B - A kind of fan blade damage sync detection device and method - Google Patents
A kind of fan blade damage sync detection device and method Download PDFInfo
- Publication number
- CN108386323B CN108386323B CN201810104295.5A CN201810104295A CN108386323B CN 108386323 B CN108386323 B CN 108386323B CN 201810104295 A CN201810104295 A CN 201810104295A CN 108386323 B CN108386323 B CN 108386323B
- Authority
- CN
- China
- Prior art keywords
- infrared
- driving source
- fan blade
- detection device
- annulus
- 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.)
- Active
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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Radiation Pyrometers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of fan blade damage sync detection device and methods, described device includes lifting mechanism, propulsive mechanism, synchronization mechanism, mobile mechanism, annulus collecting mechanism, information process unit, synchronization mechanism includes synchronization mechanism matrix, intelligent locking apparatus, and annulus collecting mechanism includes infrared thermoviewer, infrared flashlight driving source regulating system.The described method includes: lifting mechanism by device lift just, raising, it is synchronous with blower that delivery device pushes detection device, annulus collecting mechanism is sent to detection position by mobile mechanism, the height, angle, frequency of infrared flashlight is adjusted in regulating system, infrared thermoviewer acquisition image data is sent to information process unit, the infrared three-dimensional thermography of information process unit building blade is analyzed and determined that device resets, and detection terminates.The present invention has the advantages that realizing fan blade damage on-line synchronous detection, by the infrared three-dimensional thermal imagery map analysis judgement damage of fan blade, detection time is substantially reduced.
Description
Technical field
The invention belongs to blower damage detection technology field more particularly to a kind of fan blade damage sync detection device and
Method.
Background technique
Wind is a kind of energy of not public hazards, very environmentally friendly using wind-power electricity generation, and the electric energy that can be generated is very huge,
Therefore more and more countries more pay attention to wind-power electricity generation.Fan blade is converted to the front end equipment of electric energy as wind energy,
The quality of performance directly determines the height of transfer efficiency, thus periodic detection its situation is extremely important.
Fan blade is shell structure made of a composite material, and 90% or more of weight is made of composite material,
Every generator generally has more blades.Blade transport and installation process in, due to blade size itself and be self-possessed it is larger and
And it will cause the generation of fan blade internal injury with certain elasticity.Even more noteworthy, due to the evil of working environment
The property complicated and changeable of pessimum and operating condition, fan blade is in sunlight, acid rain, blast, self-vibration, dust storm, under conditions of salt fog etc. is unfavorable
With the variation of time, degeneration also occurs for performance, until natural cracking is generated, trachoma, surface abrasion, broken by lightning, cross
To failures such as crackles.Moreover, also will appear different degrees of fatigue damage in the process of running；If daily can carry out blade
Periodic maintenance, so that it may avoid the maintenance cost of great number in the future, reduce the economic loss caused by shutting down.
Detecting in such a way that monitoring combines, it can prevent and can be avoided the generation of accident.At present to blower
Crop leaf measuring can be divided into production quality inspection and military service blade is in place, on-line checking.Quality inspection is produced often to the life in production process
Defect, material tests are produced, this detection is realization easy to operate.However to the blade on-line checking of military service it is most of still according to
It manually detects, artificial detection has that risk is high, detection efficiency is low, large labor intensity, data are not easy to maintain and when detecting
Between it is too long the defects of.Therefore, military service blade on-line checking gradually obtains more and more attention.With mentioning for non-destructive testing technology
It rises, non-destructive testing can be combined with advanced mechanical device, different military services is designed using different non-destructive testing technologies
Blade detects in place.Common fan blade non-destructive testing technology has: the inspection such as ultrasonic wave, sound emission, X-ray, infrared thermal imaging
Survey technology.But every kind of detection method all has the advantages that respective and uses limitation, and there is no perfect standards to provide
The applicable stage of detection method.Such as authorize publication No. CN204961177U, the patent document in date of publication on January 13rd, 2016 discloses
A kind of fan blade detection device, is a kind of fan blade real-time detection apparatus using active infra-red thermal imaging,
The detection device feature is to be to will test with each parameter setting of light illuminating unit into optimum state manually before detecting；Such as Shen Qing Publication
Number CN107063602A, the date of publication patent document on the 18th of August in 2017 disclose a kind of fan blade mechanical damage detection dress
It sets, is a kind of based on the degree of intelligence that can be accurately identified damaged blade position to image progress Digital Image Processing
High detection device, which solves existing pneumatic equipment bladess there is inconvenient, detection inaccuracy, degree of intelligence is low,
The disadvantages of practicability is poor, structure is complicated；Such as application publication number CN106501280A, the patent in date of publication on March 15th, 2017
Document discloses a kind of fan blade on-line measuring device and its detection method based on laser ranging, which is swashed using three-dimensional
The case where ligh-ranging carries out contactless detection technique to blade, can effectively monitor blade, finds failure in time.However,
Above-mentioned fan blade, which is on active service to detect in place, can only realize fan blade static detection, and static detection overlong time is brought quite
The problems such as huge economic loss.Therefore, studying a kind of device for being suitable for fan blade military service on-line checking has important work
Journey application value and practical significance.The patent document of Authorization Notice No. CN20483211U, date of publication on December 2nd, 2015 disclose
A kind of wind field running blade of wind-driven generator detection device, the detection device are the principles using sound phase instrument, pass through sound
The sound that blade issues when source receiving device receives the rotation of wind turbine power generation machine detects that blade damages shape by timely data processing
State, which solves the technologies for the apparatus for examination and repair for not having the damaged condition for detecting blade of wind-driven generator promptly and accurately
Problem, and running blower is detected in the ground that can be placed on from one fixed spacing of blower.But the device is largely
On influenced by surrounding medium environment, influence image quality, and also do not account for when wind direction changes, blower also can
As wind direction circumferentially rotates, so that detection device will change in the precondition that windward side is placed, so that detection
The error of generation is larger.
Therefore, fan blade damage check should meet military service on-line checking, and adapt to the variation of wind direction, thus
The detection that can be very good to complete blade shows very intuitive defect.
Summary of the invention
The object of the present invention is to provide a kind of fan blade damage sync detection devices and method, the detection device can be real
The online detection of existing fan blade.The thermography that blade different directions are acquired by annulus collecting mechanism, through information process unit
The infrared three-dimensional thermography of processing building fan blade, what the damage of blade can be very visual in image is presented on three-dimensional thermography
In, the acquisition of thermography is completed during fan operation, can reduce bring warp due to shutdown detection time is too long in this way
Ji loss.The detection device can according to fan blade different parts curved surface automatically adjust infrared flashlight driving source angle with
Highly, the Acquisition Error as caused by temperature field spatial gradient is larger, uniformity is poor etc. can be thus reduced, according to blade difference portion
The thickness of position adjusts excitation source frequency, is can reduce in this way due to motivating improper and missing inspection depths damage.
The technical solution adopted by the present invention: a kind of fan blade damage sync detection device, including lifting mechanism, pusher
Structure, synchronization mechanism, mobile mechanism, annulus collecting mechanism, information process unit；Lifting mechanism is by lifting module and box elliptic
Telescopic arm composition；Lifting mechanism is connect with propulsive mechanism；Propulsive mechanism is flexibly connected with synchronization mechanism；Synchronization mechanism is equipped with multiple groups
Mobile mechanism, it is identical as fan blade number respectively；Mobile mechanism is equipped with mobile work platform；Mobile work platform and annulus harvester
Structure connection.
A kind of lifting mechanism of fan blade damage sync detection device is stretched by lifting module and box elliptic
Contracting arm is constituted, and lifting module is the vertical position that will test device and be lifted to parallel blower tower from the initial position on parallel ground,
Box elliptic telescopic arm is to will test device and rise to rise to synchronization mechanism matrix central axes and be overlapped with axial fan hub housing axis；Institute
It states lifting mechanism to be made of lifting module and box elliptic telescopic arm, the lifting module includes Triangular Arm, pull rod, hydraulic cylinder
Assembly；Triangular Arm is to be arranged symmetrically with pull rod, and the Triangular Arm lower end and pan frontward end are hinged, the pull rod lower end with it is described
Triangular Arm upper end is hinged, and the pull rod upper end and the box elliptic telescopic arm are hinged, the upper end of the hydraulic cylinder assembly with
The box elliptic telescopic arm is hinged, and the hinged box elliptic telescopic arm single-unit is flexible in the middle part of lower end and the Triangular Arm
Arm overall length be equal to the sum of single-unit extended length and nested lengths, nested parts of the single-unit telescopic arm in previous section telescopic arm according to
Minimum lap of splice principle is chosen, and elongation is selected according to the elasticity modulus of selected materials with Poisson's ratio, the box is ellipse
Round type telescopic arm connects propulsive mechanism.Propulsive mechanism is made of a set of hydraulic system, which is along axial fan hub housing axis
Direction pushes detection device, and delivery device triggers intelligent locking apparatus while withdrawal.
A kind of synchronization mechanism of described fan blade damage sync detection device, it is same with blower to be that one kind will test device
The mechanism of step, the mechanism reach synchronous effect, radial freedom degree by constraining axial freedom degree and radial freedom degree
By completing to constrain with the synchronous matrix concave structure of the blade root of axial fan hub shell, blade cooperation, axial freedom passes through
Intelligent locking apparatus is completed to constrain, and the intelligent locking apparatus includes lock tongue, transmission mechanism, deceleration mechanism, driving motor, touching
Send out module；The trigger module includes pressure sensor, pressure ball, compression spring, wherein the average helical diameter of compression spring
Less than pressure bulb diameter；Multiple groups trigger module is connected using OR circuit, is prevented single trigger module from damaging and is influenced entire inspection
Device is surveyed to work normally.
The mobile mechanism of described a kind of fan blade damage sync detection device, by ball screw framework by motor
Rotary motion is converted into the precision machinery device of workbench linear motion, and ball-screw makes the detection of every section of blade all meshingly
Closely, detection process is very steady, since ball-screw has the invertibity of transmission, so using fast after detection
It moves back, uses this high-accuracy mechanical device that can detection error be greatly reduced.
A kind of annulus collecting mechanism of the fan blade damage sync detection device, including more infrared thermoviewers,
Infrared flashlight driving source regulating system and annulus matrix.It is uniformly placed between the infrared flashlight driving source regulating system
On annulus matrix, more infrared thermoviewers are uniformly distributed on the annulus matrix between infrared flashlight driving source regulating system.
A kind of annulus collecting mechanism of fan blade damage sync detection device, wherein driving source selects infrared lamp
Bubble, because the thermal conversion efficiency of infrared lamp and heating efficiency are high, and starting efficiency is high, can radiate and reach within a short period of time
Peak not will cause the influence for continuing radiation after light bulb is closed.
A kind of infrared flashlight driving source of fan blade damage sync detection device, single pulse infrared flare
Driving source generates temperature field on examined workpiece surface to be had the characteristics that successively decrease around centered on driving source corresponding points, even number
It covers pulsed infrared flash of light driving source simultaneously to heat workpiece, the radiation of pulsed infrared flash of light driving source can be overlapped mutually, and can be reduced
The heat wave temperature generated by pulsed infrared flash of light driving source.Similarly, if glistened using four, six or multiple pulsed infrareds
Driving source carries out regular arrangement, then can not only greatly improve the spatial dimension and one-time detection area of heat wave radiation, improve
The time gradient of temperature rise, moreover it is possible to which more effectively reduction spatial gradient, this is conducive to the flaw detection to interior of articles defect and improves inspection
Survey efficiency.
A kind of infrared flashlight driving source regulating system of fan blade damage sync detection device, passes through adjusting
The height of driving source and angle make driving source adapt to the curved surface variation of surveyed blade different parts, make driving source from blade away from
From being maintained within the scope of 550mm-650mm；The change of blade different parts thickness is adapted to by adjusting the driving frequency of driving source
Change.
A kind of infrared flashlight driving source regulating system of fan blade damage sync detection device, height and angle
Degree regulating device includes distance and angle detection module, microprocessor module, steering engine, electric telescopic rod, and distance is detected with angle
Distance and steering engine real-time angle parameter of the module by infrared flashlight driving source away from detection surface pass to microprocessor module,
Excitation optimal adjustment parameter is obtained through analytical calculation through processor, by adjusting steering engine and light weight electric telescopic rod, improves excitation
Between source due to angle and position caused by temperature field spatial gradient is larger, uniformity is poor etc. disadvantage, on the one hand can be with
Disadvantage mentioned above is substantially improved, the spatial dimension and one-time detection area of heat wave radiation on the other hand can be improved.
A kind of infrared flashlight driving source regulating system of fan blade damage sync detection device is to excitation frequency
The adjusting of rate, frequency regulation arrangement include arbitrarily signal generating device, amplifier, and information process unit is according to blade lane database
Vane thickness parameter, selects frequency appropriate to send instructions to arbitrarily signal generating device, and arbitrarily signal generating device passes through amplification
Signal is issued infrared flare driving source by device, is come and fan blade difference portion by using the infrared flare driving source of different frequency
The thickness of position matches, and different driving frequencies can detect the damage of different depth, when frequency is high, be conducive to searching surface
Damage.When frequency is low, detectable relatively deep damage provides the two-dimensional infrared thermograph of different directions for three-dimensional thermal imaging.
A kind of the selection of material of fan blade damage sync detection device, Suo Su mechanism are all made of bending and compression
Intensity is in 500Mpa or more, high strength light material of the relative density between 1.0-1.5；The multiple groups mobile mechanism, institute
The quantity for stating annulus collecting mechanism is identical as the quantity of fan blade.
A kind of application method of fan blade damage sync detection device, characterized in that mainly comprise the steps that
(1) step 1:
Lifting mechanism starting: the lifting module starting of lifting mechanism, the lifting angle for lifting module is lifted to 90 ° by 0 °, makes
The vertical position that detection device is lifted to parallel blower tower from the initial position on parallel ground is obtained, box elliptic telescopic arm is stretched
Long, the centering detection module wait be located on synchronization mechanism central axes detects synchronization mechanism matrix central axes and axial fan hub shell
When axis is overlapped, box elliptic telescopic arm stops elongation；
(2) step 2:
The synchronization of detection device: the hydraulic stem elongation of propulsive mechanism pushes detection dress along axial fan hub housing axis direction
It sets, to the sensor of axial fan hub shell triggering synchronization mechanism bottom portion of groove, delivery device stops push, at this time when synchronization mechanism
Radial locking is completed, the hydraulic stem of propulsive mechanism executes recovery command, while triggering intelligent locking apparatus, axial locking is carried out,
Final synchronization mechanism completes the radial constraint with axial direction of combination；
(3) step 3:
Mobile mechanism's operation: annulus collecting mechanism is sent to blower by initial mobile mechanism end by detection mobile mechanism
At the wing tip of blade, mobile mechanism is driven apart from interior to blade root direction with the single feed range of 285mm-400mm, until transmission
To blade root；
(4) step 4:
The adjusting of driving source: it is static to detection position that mechanism to be moved will test mechanism driving, infrared flashlight driving source
Height, the angle of driving source is adjusted in the electric telescopic rod and steering engine of regulating system, driving source with fan blade song
Face variation is adjusted, and is maintained at driving source within the scope of 550mm-650mm with a distance from blade, actuation duration 30s；According to
The thickness parameter for the blade being loaded into before information process unit detection, information process unit is to infrared flashlight driving source regulating system
Arbitrarily signal generating device send data, arbitrarily signal generating device sends a signal to infrared flashlight driving source through amplifier, makes
The thickness change of driving frequency adaptation blade different parts；
(5) step 5:
The acquisition of Infrared Thermogram: the same position that the multiple groups infrared thermoviewer on annulus collecting mechanism completes blade is multi-party
To infrared two-dimentional thermography acquisition, the sample frequency of infrared thermoviewer is set as 5Hz-10Hz, acquisition time 90s, acquires
Obtained leaf image data transmission is to information process unit；
(6) step 6:
Information process unit handle information: circulation above-mentioned steps third and fourth, five steps to blade root, information process unit
The infrared three-dimensional thermography of blade is constructed according to obtained image data is received, and blade injury is analyzed and determined；
(7) step 7:
Device resets: annulus testing agency is retreated to the initial position of mobile mechanism end, pusher fastly by mobile mechanism
The hydraulic stem of structure, which is extended to synchronization mechanism matching hole internal trigger intelligent locking apparatus, unlocks, and withdraws detection device, lifting mechanism
It will test device by box elliptic telescopic arm and lifting module to reset in initial horizontal position.
The beneficial effects of the present invention are the online detections of fan blade；The different curved surface of fan blade, thickness exist
Difference, the detection device have the driving source regulating system for adapting to spoon of blade, thickness change；It is infrared by three that wind blade can be achieved
The building for tieing up thermography, can find out defect whereabouts by three-dimensional Infrared Thermogram visual in imagely；With automation journey
Spend the advantages that high, adaptable, detection efficiency is high.
Detailed description of the invention
Fig. 1 is whole assembling schematic diagram of the invention.
Fig. 2 is annulus collecting mechanism schematic diagram of the invention.
Fig. 3 is synchronization mechanism schematic diagram of the invention.
Fig. 4 is synchronization mechanism trigger module partial schematic diagram of the invention.
Fig. 5 is propulsive mechanism schematic diagram of the invention.
Fig. 6 is lifting mechanism schematic diagram of the invention.
Fig. 7 is application method flow chart of the invention.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below in conjunction with accompanying drawings and embodiments, how the present invention is applied whereby
Technological means solves technical problem and reaches the realization process of technical effect to fully understand and implement.
As shown in Figure 1, for a kind of fan blade damage sync detection device entirety assembling schematic diagram, including lifting mechanism 1,
Propulsive mechanism 2, synchronization mechanism 3, mobile mechanism 4, annulus collecting mechanism 5, mobile work platform 6, connector 7, information process unit
8；The lifting mechanism 1 is connect with the propulsive mechanism 2；The propulsive mechanism 2 is flexibly connected with the synchronization mechanism 3；It is described
It is identical as fan blade number respectively equipped with multiple groups mobile mechanism 4 on synchronization mechanism 3；The mobile mechanism 4 is equipped with mobile working
Platform 6；The mobile work platform 6 is connect with annulus collecting mechanism 5 by connector 7.
As shown in Fig. 2, annulus collecting mechanism 5 includes thermal infrared imager 51, infrared flashlight driving source regulating system 52, circle
Ring base 53, infrared flashlight driving source regulating system 52 include infrared excitation source flash lamp 521, distance and angle detection module
522, driving source support 523, steering engine 524, electric telescopic rod 525, arbitrarily signal generating device 526, amplifier 527, annulus matrix
53；The infrared flashlight driving source 521 is fixed on the driving source support 523, the radial angle and axis of driving source support 523
To being connect respectively by the telescopic end of the steering engine 524, the electric telescopic rod 525 with driving source support 523, the infrared thermal imagery
The fixing end of instrument 51 and the electric telescopic rod 525 is fitted to 53 inside of annulus matrix, and annulus matrix 53 passes through connector 7
It is linked with workbench 6.
As shown in figure 3, the assembling schematic diagram of synchronization mechanism 3, including synchronization mechanism matrix 31, intelligent locking apparatus 32, biography
Sensor 33, centering detection module 34, synchronization mechanism 3 by synchronization mechanism matrix 31 and intelligent locking apparatus 32 will test device with
Blower locking, synchronization mechanism matrix 31 carry out radial constraint by the blower leaf concave structure matched with axial fan hub shell,
Intelligent locking apparatus 32 completes axial constraint locking；Centering detection device detects outside synchronization mechanism matrix central axes and axial fan hub
Columella line is overlapped, and sensor sensing delivery device push detection is in place；Intelligent locking apparatus 32 includes lock tongue 321, trigger module
322, deceleration mechanism 323, driving motor 324, controller 325, transmission mechanism 326；As shown in figure 4, synchronization mechanism trigger module
322 partial schematic diagrams, the trigger module include pressure sensor 3221, compression spring 3222, pressure ball 3223, and be averaged spiral shell
It revolves diameter and is less than bulb diameter；Multiple groups trigger module 322 is connected using OR circuit；The trigger module 322 triggers the driving
The rotation of motor 324, the deceleration mechanism 323 complete the biography of the power between the driving motor 324 and the transmission mechanism 326
Defeated, the transmission mechanism 326 drives the lock tongue 321 to execute the switch of intelligent locking apparatus 32.
As shown in figure 5, the propulsive mechanism 2, the propulsive mechanism is the centre of mechanism lifting mechanism 1 and synchronization mechanism 3
Bindiny mechanism passes through the opening and closing of the intelligent locking apparatus 32 of the extension and contraction control of hydraulic stem synchronization mechanism 3.
As shown in fig. 6, the lifting mechanism of the lifting mechanism 1, including lifting module 11, box elliptic telescopic arm 12,
Lifting module includes Triangular Arm 111, pull rod 112, hydraulic cylinder assembly 113, the box elliptic telescopic arm 12 described in pedestal 13
It is socketed to form by single oil cylinder；Triangular Arm 111 and pull rod 112 are all arranged symmetrically, and 111 lower end of Triangular Arm and 13 front end of pedestal are cut with scissors
It connects, 112 lower end of pull rod and 111 upper end of Triangular Arm are hinged, and 112 upper end of pull rod and the box elliptic telescopic arm 12 are cut with scissors
It connects, the upper end of the hydraulic cylinder assembly 113 and the box elliptic telescopic arm 12 are hinged, in lower end and the Triangular Arm 111
Portion is hinged.
As shown in fig. 7, a kind of application method step of fan blade damage sync detection device:
Step 1:
Lifting mechanism raising process: the lifting module 11 of lifting mechanism 1 starts, and the lifting angle for lifting module 11 is lifted by 0 °
To 90 °, so that box elliptic telescopic arm 12 is lifted to the vertical position of parallel blower tower, case from the initial position on parallel ground
Type elliptic telescopic arm 12 extends, and the centering detection module 33 wait be located on 3 central axes of synchronization mechanism detects synchronization mechanism base
For 31 central axes of body with axial fan hub housing axis when being overlapped, box elliptic telescopic arm 12 stops elongation.
Step 2:
The synchronous process of detection device: the hydraulic stem elongation of propulsive mechanism 2 is pushed along axial fan hub housing axis direction and is examined
Device is surveyed, to the sensor 33 of axial fan hub shell triggering synchronization mechanism bottom portion of groove, delivery device 2 stops push, pushed
The elongation end of delivery device 2 contacts always with the pressure ball 3223 of synchronization mechanism 3 in journey, the lock tongue 321 of intelligent locking apparatus 32
In unlocking condition；To the sensor 33 of axial fan hub shell triggering synchronization mechanism bottom portion of groove, delivery device 2 stops push,
Intelligent locking apparatus 32 is triggered simultaneously, compression spring 3222 rebounds pressure ball 3223, and pressure sensor 3221 is by pressure at this time
Force signal is transmitted to controller 325, and controller 325 controls driving motor 324 and rotates, and deceleration mechanism 323 is moved driving motor 324
Power passes to transmission mechanism 326, and the lock tongue 321 of intelligent locking apparatus is closed, and final synchronization mechanism 3 is completed to detection device and wind
The radial direction of machine and axial constraint.
Step 3:
Mobile mechanism's operation: the movement of workbench 6 is driven by ball screw framework, mobile mechanism 4 acquires annulus
Mechanism 5 is sent to the wing tip of fan blade by initial 4 end of mobile mechanism, and mobile mechanism 4 is with the single of 285mm-400mm
Feed range distance is driven to blade root direction, until being transmitted to blade root.
Step 4:
Infrared flashlight driving source regulating system adjusts excitation source height and angle process: distance and angle detection module
522 distance and the real-time angle parameter of steering engine 524 by infrared flashlight driving source 521 away from detection surface passes to processing unit
8, the height and angle of excitation adjusting are obtained through analytical calculation through processing unit 8, passes through infrared flashlight driving source regulating system
52 steering engine 524 and electric telescopic rod 525, infrared flashlight driving source 521 is passed through away from the distance between tested fan blade
Electric telescopic rod 525 is adjusted to 550mm-650mm, changes infrared flashlight driving source 524 by adjusting the angle of steering engine 524
Between superposition area, motivate regulating system 52 to improve between infrared flashlight driving source 521 due to angle by infrared flashlight
Degree with height reason caused by temperature field spatial gradient is larger, uniformity is poor etc. disadvantage, on the one hand can substantially improve above
On the other hand the spatial dimension and one-time detection area of heat wave radiation can be improved in disadvantage.
Infrared flashlight driving source regulating system adjusts driving frequency process: information process unit 8 passes through the database middle period
The suitable driving frequency of the thickness parameter selection of piece, information process unit 8 send required frequency to arbitrarily signal generating device 526
Instruction, arbitrarily signal generating device 526 sends the signal to amplifier 527, and final signal is sent to infrared by amplifier 527 again
Flash lamp driving source 521, the driving frequency of infrared flashlight driving source 521 adapt to the thickness of surveyed fan blade, to make
Thermal infrared imager 51 institute collected thermograph for different-thickness position damage two-dimentional thermography.
Step 5:
The acquisition of Infrared Thermogram: the same position that the multiple groups infrared thermoviewer on annulus collecting mechanism 5 completes blade is more
The acquisition of the infrared two-dimentional thermography in direction, within the scope of 5Hz-10Hz, acquisition time is the sample frequency of infrared thermoviewer
90s, the leaf image data transmission collected to information process unit 8.
Step 6:
Pixel-level is carried out to these thermographies by the digital image processing algorithm of 8 image processing unit of information process unit
Processing and identification, find out a large amount of features；A large amount of features on different thermographies are matched using matching algorithm, are found out not
It is the same point with which point on thermography；Scene coordinate system is constructed, it is every by the methods of solution equation of higher degree group inversion reckoning
The corresponding acquisition position of thermography and angle (three-dimensional) are opened, i.e., thermal imaging system when shooting to every thermography positions；Finally
According to the relative spatial co-ordinates of thermal imaging system and direction and point data of the same name, using measuring the space learned algorithm and find out all same places
Three-dimensional coordinate；A large amount of same places constitute point cloud, then point is connected composition face, finally on the whole thermography patch, constitute red
Outer three-dimensional thermal imagery model, the size of the damage of such blade and position are just intuitively shown very much.
Step 7:
Annulus collecting mechanism 5: being retreated to the initial position of 4 end of mobile mechanism by mobile mechanism 4 by device reseting procedure fastly,
The elongation of propulsive mechanism 2 is unlocked to 3 matching hole internal trigger intelligent locking apparatus 32 of synchronization mechanism, withdraws detection device, lifting machine
Structure 1 is set out by box elliptic telescopic arm 12 will test device reset in initial horizontal position with lifting module 11.
Claims (9)
1. a kind of fan blade damages sync detection device, which is characterized in that including lifting mechanism, propulsive mechanism, synchronization mechanism,
Mobile mechanism, annulus collecting mechanism, information process unit；The lifting mechanism is by lifting module and box elliptic telescopic arm group
At the lifting mechanism is connect with the propulsive mechanism；The propulsive mechanism is flexibly connected with synchronization mechanism；The synchronization mechanism
Upper that multiple groups mobile mechanism is housed, mobile mechanism's number is identical as fan blade number；The mobile mechanism is equipped with mobile work platform；
The mobile work platform is connect with annulus collecting mechanism；Information process unit is with annulus collecting mechanism by being wirelessly attached.
2. a kind of fan blade according to claim 1 damages sync detection device, which is characterized in that the synchronization mechanism
Including synchronization mechanism matrix, intelligent locking apparatus；The intelligent locking apparatus includes lock tongue, transmission mechanism, deceleration mechanism, driving
Motor, multiple groups trigger module；The multiple groups trigger module includes pressure sensor, pressure ball, compression spring, wherein the pressure
Spring average helical diameter is less than the diameter of pressure ball；The trigger module is connected using OR circuit；The trigger module touching
The rotation for sending out driving motor described, the deceleration mechanism realize that the power between the driving motor and the transmission mechanism passes
Defeated, the transmission mechanism drives lock tongue to execute the switch of intelligent locking apparatus；The planform of the synchronization mechanism matrix is about
Beam the radial freedom degree of detection device and blower；The planform of the synchronization mechanism matrix will test with intelligent locking apparatus
Device is together with blower Complete Bind, so that device detection is synchronous with fanman's work arrival.
3. fan blade according to claim 1 damages sync detection device, which is characterized in that the annulus collecting mechanism
Including infrared thermoviewer, infrared flashlight driving source regulating system and annulus matrix, wherein infrared thermoviewer, infrared flashlight swash
Encouraging source regulating system quantity is multiple groups；It is uniformly placed on annulus matrix between the infrared flashlight driving source regulating system,
The infrared thermoviewer is uniformly distributed in the annulus matrix between the infrared flashlight driving source regulating system；The infrared sudden strain of a muscle
Light lamp driving source regulating system carries out height, angle, frequency to infrared flashlight and adjusts；The regulating system is to height, angle
Regulating device include distance and Angle Measurement Module, microprocessor module, driving source support, steering engine, electric telescopic rod；It is described
Distance is located on driving source support with Angle Measurement Module, and the axial length and radial angle of the driving source support are respectively by institute
It states electric telescopic rod and the steering engine is adjusted, the telescopic end of the electric telescopic rod is connect with the driving source support, described red
The fixing end of outer thermal imaging system and the electric telescopic rod cooperates and is mounted on the annulus matrix；The regulating system is to frequency
Regulating device include arbitrarily signal generating device, amplifier, the input terminal of the arbitrarily signal generating device and the information processing
Unit connection, output end are connect with the amplifier, and the amplifier other end is connect with the infrared flare driving source；It is described
Annulus matrix is connected by chaining part and the workbench of mobile mechanism；The reception and transmitting of above equipment information are all by wireless
To complete transmission.
4. fan blade according to claim 1 damages sync detection device, which is characterized in that the propulsive mechanism is stretched
Contracting controls the locking of the synchronization mechanism.
5. fan blade according to claim 1 damages sync detection device, which is characterized in that the mobile mechanism uses
Ball screw framework converts the rotary motion of motor in the precision machinery device of workbench linear motion.
6. a kind of fan blade according to claim 1 damages sync detection device, which is characterized in that the lifting mechanism
It is made of lifting module and box elliptic telescopic arm, the lifting module includes Triangular Arm, pull rod, hydraulic cylinder assembly；Triangle
Arm is to be arranged symmetrically with pull rod, and the Triangular Arm lower end and pan frontward end are hinged, on the pull rod lower end and the Triangular Arm
End is hinged, and the pull rod upper end and the box elliptic telescopic arm are hinged, the upper end of the hydraulic cylinder assembly and the box
Elliptic telescopic arm is hinged, hinged described box elliptic telescopic arm single-unit telescopic arm overall length etc. in the middle part of lower end and the Triangular Arm
In the sum of single-unit extended length and nested lengths, nested parts of the single-unit telescopic arm in previous section telescopic arm are overlapped according to minimum
Length principle is chosen, and elongation selectes according to the elasticity modulus of selected materials with Poisson's ratio；The box elliptic is flexible
Arm upper end connects propulsive mechanism.
7. fan blade according to claim 1 damages sync detection device, which is characterized in that the information process unit
In include the infrared three-dimensional thermography unit of two-dimensional infrared thermography building, driving source parameter processing unit.
8. a kind of fan blade according to claim 1 damages sync detection device, which is characterized in that the mechanism is adopted
With bending and compressive strength in 500Mpa or more, high strength light material of the relative density between 1.0-1.5；The multiple groups
Mobile mechanism, the quantity of the annulus collecting mechanism are identical as the quantity of fan blade.
9. a kind of application method of fan blade damage sync detection device, characterized in that mainly comprise the steps that
(1) step 1:
Lifting mechanism starting: the lifting module starting of lifting mechanism, the lifting angle for lifting module is lifted to 90 ° by 0 °, so that inspection
The vertical position that device is lifted to parallel blower tower from the initial position on parallel ground is surveyed, box elliptic telescopic arm extends, to
Centering detection module on synchronization mechanism central axes detects synchronization mechanism matrix central axes and axial fan hub housing axis
When coincidence, box elliptic telescopic arm stops elongation；
(2) step 2:
The synchronization of detection device: the hydraulic stem elongation of propulsive mechanism pushes detection device along axial fan hub housing axis direction, to
Axial fan hub shell triggers the sensor of synchronization mechanism bottom portion of groove, and delivery device stops push, and synchronization mechanism completes diameter at this time
To locking, the hydraulic stem of propulsive mechanism executes recovery command, while triggering intelligent locking apparatus and carrying out axial locking, final synchronous
Mechanism reaches the radial constraint with axial direction of combination；
(3) step 3:
Mobile mechanism's operation: annulus collecting mechanism is sent to fan blade by initial mobile mechanism end by detection mobile mechanism
Wing tip at, mobile mechanism is driven apart from interior to blade root direction with the single feed range of 285mm-400mm, until be transmitted to leaf
Piece blade root；
(4) step 4:
The adjusting of driving source: it is static to detection position that mechanism to be moved will test mechanism driving, and infrared flashlight driving source is adjusted
System is adjusted height, the angle of infrared flashlight driving source by electric telescopic rod and steering engine, infrared flashlight excitation
Source is adjusted with the curved surface variation of fan blade, and infrared flashlight driving source is made to be maintained at 550mm- with a distance from blade
Within the scope of 650mm, actuation duration 30s；The thickness parameter for the blade being loaded into before being detected according to information process unit, information processing
Unit sends data to the arbitrarily signal generating device of infrared flashlight driving source regulating system, and arbitrarily signal generating device is through amplifier
Infrared flashlight driving source is sent a signal to, driving frequency is made to adapt to the thickness change of blade different parts；
(5) step 5:
The acquisition of Infrared Thermogram: the same position that the multiple groups infrared thermoviewer on annulus collecting mechanism completes blade is multidirectional
The acquisition of infrared two dimension thermography, the sample frequency of infrared thermoviewer is within the scope of 5Hz-10Hz, acquisition time 90s, acquisition
Obtained leaf image data transmission is to information process unit；
(6) step 6:
Information process unit handle information: circulation above-mentioned steps third and fourth, five steps to blade root, information process unit according to
The obtained infrared three-dimensional thermography of image data building blade is received, and blade injury is analyzed and determined；
(7) step 7:
Device resets: annulus collecting mechanism is retreated to the initial position of mobile mechanism end fastly by mobile mechanism, propulsive mechanism
Hydraulic stem, which is extended to synchronization mechanism matching hole internal trigger intelligent locking apparatus, unlocks, and withdraws detection device, lifting mechanism passes through
Box elliptic telescopic arm and lifting module will test device and reset in initial horizontal position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810104295.5A CN108386323B (en) | 2018-02-02 | 2018-02-02 | A kind of fan blade damage sync detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810104295.5A CN108386323B (en) | 2018-02-02 | 2018-02-02 | A kind of fan blade damage sync detection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108386323A CN108386323A (en) | 2018-08-10 |
| CN108386323B true CN108386323B (en) | 2019-07-19 |
Family
ID=63074298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810104295.5A Active CN108386323B (en) | 2018-02-02 | 2018-02-02 | A kind of fan blade damage sync detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386323B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343562A (en) * | 2018-02-02 | 2018-07-31 | 长沙理工大学 | A kind of fan blade damage sync detection device |
| CN109580410B (en) * | 2018-12-10 | 2020-02-07 | 湘潭大学 | Equivalent loading device and method for service load of thermal barrier coating of working blade |
| CN110222650A (en) * | 2019-06-10 | 2019-09-10 | 华北水利水电大学 | A kind of acoustie emission event classification method based on sound emission all band acquisition parameter |
| CN111829894B (en) * | 2020-06-24 | 2022-02-08 | 山东大学 | Rock-soil multi-field measurement test system and method |
| CN112283050A (en) * | 2020-11-17 | 2021-01-29 | 天津科技大学 | Machine vision-based online monitoring method for wind turbine blade |
| CN116973242B (en) * | 2023-09-22 | 2023-11-28 | 江苏华恬节能科技有限公司 | Polyurethane product high-temperature illumination deformation detection equipment and detection method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010092426A2 (en) * | 2009-02-12 | 2010-08-19 | Clipper Windpower, Inc. | Blade crack detector in a wind turbine |
| GB2488123A (en) * | 2011-02-15 | 2012-08-22 | Vestas Wind Sys As | System and method for detecting damage to a wind turbine blade |
| JP2017090145A (en) * | 2015-11-06 | 2017-05-25 | 株式会社日立製作所 | Windmill blade deformation measurement device, and windmill blade deformation evaluation system |
| DE102016005586A1 (en) * | 2016-05-04 | 2017-11-09 | Wolfram Tessendorf | Test device for rotor blades of wind turbines |
| CN108343562A (en) * | 2018-02-02 | 2018-07-31 | 长沙理工大学 | A kind of fan blade damage sync detection device |
-
2018
- 2018-02-02 CN CN201810104295.5A patent/CN108386323B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108386323A (en) | 2018-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108386323B (en) | A kind of fan blade damage sync detection device and method | |
| US7059822B2 (en) | Methods and apparatus for measuring wind turbine blade deflection | |
| DK177760B1 (en) | System and method for inspecting a wind turbine | |
| US8270667B2 (en) | System and method for wind turbine inspection | |
| CN108343562A (en) | A kind of fan blade damage sync detection device | |
| CN202274979U (en) | Device for optical measurement for deflection of wind wheel blade, and wind power generation device | |
| US8553233B2 (en) | Method and apparatus for the remote nondestructive evaluation of an object using shearography image scale calibration | |
| WO2022037142A1 (en) | Monitoring device and method for clearance of blades of wind turbine generator set, and wind turbine generator set | |
| US8487230B2 (en) | Intelligent solar energy collection system with a dedicated control device | |
| US8853605B2 (en) | Intelligent solar panel array | |
| CN103149240A (en) | Nondestructive detecting system and method for automatic tracking thermal wave imaging | |
| CN104514686B (en) | A kind of device and method of real-time monitoring blower fan tower barrel running status | |
| CN113686268A (en) | Automatic measuring system and method for exhaust area of turbine guider | |
| CN115372412B (en) | Characteristic measurement method for turbine blade based on six-point positioning | |
| CN112483330B (en) | Unmanned inspection track program control method matched with state of in-service wind turbine | |
| CN108981924A (en) | A kind of in-service large scale wind power machine blade earlier damage filed detection system | |
| CN110630440A (en) | Wind driven generator shadow control method and system | |
| CN110320876A (en) | A kind of coal-burning boiler examination and repair system and method | |
| CN108252876A (en) | Wind power generating set surface defect intelligent detection device | |
| US20130197855A1 (en) | Method and apparatus to determine temperature of a gas turbine engine | |
| CN207510719U (en) | A kind of wind power generation unit blade deicing unmanned plane | |
| CN205592073U (en) | Wind generating set blade nondestructive test device | |
| CN208902035U (en) | Crop canopies monitoring device | |
| KR101136073B1 (en) | Rotating plant growth measurement device and method | |
| CN207066362U (en) | Spatial digitizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |