CN108343562A - A kind of fan blade damage sync detection device - Google Patents

Abstract

The invention relates to a synchronous detection device for fan blade damage. The device includes a lifting mechanism, a propulsion mechanism, a synchronous mechanism, a moving mechanism, a circular collection mechanism, and an information processing unit. The synchronous mechanism includes a synchronous mechanism base and an intelligent locking device. The ring collection mechanism includes an infrared imager, an infrared flashlight excitation source adjustment system. The invention has the advantages of realizing online synchronous detection of fan blade damage, having an excitation source adjustment system that adapts to changes in blade curvature and thickness, and judging damage through infrared three-dimensional thermal image analysis of fan blades, with high automation, strong adaptability, and detection efficiency Advanced merit.

Description

A synchronous detection device for fan blade damage

technical field

The invention belongs to the technical field of wind turbine damage detection, and in particular relates to a wind turbine blade damage synchronous detection device.

Background technique

Wind is a non-polluting energy source. Using wind power to generate electricity is very environmentally friendly and can generate huge amounts of electricity. Therefore, more and more countries pay more attention to wind power generation. Fan blades are the front-end equipment for converting wind energy into electrical energy, and their performance directly determines the conversion efficiency. Therefore, it is very important to check its condition regularly.

The fan blade is a thin shell structure made of composite materials, and more than 90% of its weight is composed of composite materials. Each generator generally has multiple blades. During the transportation and installation process of the blade, due to the large size and dead weight of the blade itself and its certain elasticity, the internal damage of the fan blade will be caused. What is more noteworthy is that due to the harsh working environment and the complex and variable working conditions, the performance of fan blades will change over time under adverse conditions such as sunlight, acid rain, strong wind, natural vibration, wind and sand, and salt spray. Degradation occurs until failures such as natural cracking, trachoma, surface wear, lightning damage, and transverse cracks occur. Moreover, different degrees of fatigue damage will also occur during operation; if the blades can be regularly maintained on a daily basis, high maintenance costs in the future can be avoided and economic losses caused by downtime can be reduced.

Through the combination of detection and monitoring, accidents can be prevented and avoided. At present, the inspection of fan blades can be divided into production quality inspection and in-situ inspection of service blades. Production quality inspection is often the detection of production defects and materials in the production process, which is easy to operate. However, most of the in-situ inspections of blades in service still rely on manual inspections. Manual inspections have defects such as high risk, low detection efficiency, high labor intensity, difficult data preservation, and long inspection time. Therefore, online detection of blades in service has gradually received more and more attention. With the improvement of non-destructive testing technology, non-destructive testing can be combined with advanced mechanical devices, and different non-destructive testing technologies can be used to design different in-situ inspections of service blades. Commonly used non-destructive testing technologies for fan blades include: ultrasonic, acoustic emission, X-ray, infrared thermal imaging and other testing technologies. However, each detection method has its own advantages and limitations, and there is no perfect standard to specify the applicable stage of the detection method. For example, the authorized publication number CN204961177U, the patent document published on January 13, 2016 discloses a fan blade detection device, which is a real-time detection device for fan blades using active infrared thermal imaging technology. The detection device is characterized in that it detects Manually set the parameters of the detection and illumination unit to the best state; for example, the patent document of application publication number CN107063602A, published on August 18, 2017, discloses a mechanical damage detection device for fan blades, which is based on image Digital image processing can accurately identify the damaged blade parts with a highly intelligent detection device. This device solves the problems of existing wind turbine blades such as inconvenience, inaccurate detection, low intelligence, poor practicability, and complex structure. and other shortcomings; such as the application publication number CN106501280A, the patent document published on March 15, 2017 discloses a kind of fan blade online detection device and detection method based on laser ranging. The contact detection technology can effectively monitor the condition of the blades and detect faults in time. However, the above-mentioned fan blade in-service detection can only realize the fan blade static detection, and the static detection time is too long to bring considerable economic losses and other problems. Therefore, it is of great engineering application value and practical significance to study a device suitable for in-service and on-line detection of fan blades. Authorized announcement number CN20483211U, the patent document published on December 2, 2015 discloses a wind turbine blade detection device in wind farm operation. The sound made by the blades when the generator rotates, and the damage state of the blades is detected through timely data processing. This device solves the technical problem of not having a maintenance device that can detect the damage state of the wind turbine blades in a timely and accurate manner, and can be placed away from the wind turbine. The fan in operation is detected on the ground at a certain distance. However, the device is largely affected by the surrounding medium environment, which affects the imaging quality, and it does not take into account that when the wind direction changes, the fan will also rotate in the circumferential direction with the wind direction, so the premise of placing the detection device on the windward side The conditions will change, making the detection error larger.

Therefore, the damage detection of fan blades must not only meet the online detection of service, but also adapt to the change of wind direction, so that the detection of blades can be well completed and present very intuitive defects.

Contents of the invention

The purpose of the present invention is to provide a synchronous detection device for fan blade damage, which can realize online detection of fan blades. The thermal images of the blades in different directions are collected by the ring acquisition mechanism, and the infrared three-dimensional thermal images of the fan blades are processed by the information processing unit. The damage of the blades can be presented in the three-dimensional thermal images very vividly and intuitively. During the operation of the fan The collection of thermal images can be completed in the process, which can reduce the economic loss caused by the long shutdown detection time. The detection device can automatically adjust the angle and height of the infrared flash lamp excitation source according to the curved surface of different parts of the fan blade, which will reduce the acquisition error caused by the large spatial gradient and poor uniformity of the temperature field, and adjust the excitation source according to the thickness of different parts of the blade. Frequency, which can reduce the missed detection of deep damage due to improper excitation.

The technical scheme adopted in the present invention: a device for synchronous detection of fan blade damage, including a lifting mechanism, a propulsion mechanism, a synchronizing mechanism, a moving mechanism, a ring acquisition mechanism, and an information processing unit; the lifting mechanism is composed of a lifting module and a box-shaped elliptical The lifting mechanism is connected with the propulsion mechanism; the propulsion mechanism is movably connected with the synchronous mechanism; the synchronous mechanism is equipped with multiple sets of moving mechanisms, which are the same as the number of fan blades; the moving mechanism is equipped with a mobile workbench; The ring collection mechanism is connected.

The lifting mechanism of the fan blade damage synchronous detection device is composed of a lifting module and a box-shaped elliptical telescopic arm. The lifting module lifts the detection device from an initial position parallel to the ground to a vertical position parallel to the wind tower. Position, the box-shaped elliptical telescopic arm is to lift the detection device until the central axis of the synchronization mechanism base coincides with the axis of the fan hub shell; the lifting module includes a triangular arm, a pull rod, and a hydraulic cylinder assembly, and the box-shaped elliptical telescopic arm The arm is made of multi-section arms; the triangular arm and the pull rod are arranged symmetrically, the lower end of the triangular arm is hinged to the front end of the base, the lower end of the pull rod is hinged to the upper end of the triangular arm, and the upper end of the pull rod is connected to the upper end of the triangular arm. The box-shaped elliptical telescopic arm is hinged, the upper end of the hydraulic cylinder assembly is hinged with the box-shaped elliptical telescopic arm, and the lower end is hinged with the middle part of the triangular arm; the single-section telescopic arm of the box-shaped elliptical telescopic arm The total length is equal to the sum of the elongation length of the single section and the nesting length. The nesting part of the single-section telescopic boom in the previous telescopic boom is selected according to the principle of minimum lap length, and the elongation is based on the elastic modulus and Poisson's ratio is selected; the box-shaped elliptical telescopic arm is connected to the propulsion mechanism. The propulsion mechanism is composed of a hydraulic system, which pushes the detection device along the axial direction of the fan hub shell, and triggers the intelligent locking device when the push mechanism is retracted.

The synchronization mechanism of the fan blade damage synchronization detection device is a mechanism for synchronizing the detection device with the fan. The mechanism achieves the synchronization effect by constraining the axial degree of freedom and the radial degree of freedom. The degree of freedom is constrained by the concave structure of the synchronous base that cooperates with the fan hub shell and the blade root of the blade, and the axial degree of freedom is constrained by an intelligent locking device, which includes a lock tongue, a transmission mechanism, and a reduction mechanism , a drive motor, a trigger module; the trigger module includes a pressure sensor, a pressure ball, and a pressure spring, wherein the average spiral diameter of the pressure spring is smaller than the diameter of the pressure ball; multiple groups of trigger modules are connected by an OR gate circuit to prevent a single trigger module from being damaged and affecting The whole detection device works normally.

The moving mechanism of the fan blade damage synchronous detection device is a precision mechanical device that converts the rotary motion of the motor into the linear motion of the workbench through the ball screw mechanism. The ball screw makes the detection of each section of the blade very closely connected. , The detection process is very stable. Because the ball screw has the reversibility of transmission, it uses fast rewind after the detection. Using this high-precision mechanical device will greatly reduce the detection error.

The ring acquisition mechanism of a fan blade damage synchronous detection device includes a plurality of infrared imagers, an infrared flash lamp excitation source adjustment system and a ring base. The infrared flashlight excitation source adjustment systems are evenly arranged on the circular base body, and multiple infrared imagers are evenly distributed on the circular ring base body between the infrared flashlight excitation source adjustment systems.

In the circular acquisition mechanism of the fan blade damage synchronous detection device, the excitation source is an infrared bulb, because the infrared lamp has high heat conversion efficiency and heating efficiency, and has high start-up efficiency, and the radiation can reach the highest level in a short period of time. value, without the effect of continuing to radiate after the lamp is turned off.

In the infrared flash lamp excitation source of the fan blade damage synchronous detection device, the temperature field generated by a single pulse infrared flash excitation source on the surface of the inspected workpiece has the characteristics of decreasing from the center to the surrounding point corresponding to the excitation source. Even sets of pulse infrared flash The flash excitation source heats the workpiece at the same time, and the radiation of the pulsed infrared flash excitation source will be superimposed on each other, which can reduce the heat wave temperature generated by the pulse infrared flash excitation source. Similarly, if four, six or more pulsed infrared flash excitation sources are used for regular arrangement, it will not only greatly increase the spatial range of thermal wave radiation and the primary detection area, increase the time gradient of temperature rise, but also It can reduce the spatial gradient more effectively, which is beneficial to the flaw detection of internal defects of the object and improves the detection efficiency.

The infrared flashlight excitation source adjustment system of the fan blade damage synchronous detection device adjusts the height and angle of the excitation source to make the excitation source adapt to the curved surface changes of different parts of the measured blade, so that the distance between the excitation source and the blade is kept at Within the range of 550mm-650mm; adjust the excitation frequency of the excitation source to adapt to the change of the thickness of different parts of the blade.

The infrared flashlight excitation source adjustment system of the fan blade damage synchronous detection device, the height and angle adjustment device includes a distance and angle detection module, a microprocessor module, a steering gear, an electric telescopic rod, and the distance and angle detection module converts the infrared The distance between the flashlight excitation source and the detection surface and the real-time angle parameters of the steering gear are transmitted to the microprocessor module. After analysis and calculation by the processor, the optimal adjustment parameters of the excitation are obtained. By adjusting the steering gear and the light electric telescopic rod, the excitation source is improved. The disadvantages of large spatial gradient and poor uniformity of the temperature field caused by the angle and position, on the one hand, can greatly improve the above shortcomings, on the other hand, it can increase the spatial range of thermal wave radiation and the primary detection area.

The infrared flash light excitation source adjustment system of the fan blade damage synchronous detection device adjusts the excitation frequency. The frequency adjustment device includes an arbitrary signal generator and an amplifier. The information processing unit selects an appropriate one according to the blade thickness parameters in the blade database. The frequency sends the command to any signal generator, and the arbitrary signal generator sends the signal to the infrared flash excitation source through the amplifier. By using different frequency infrared flash excitation sources to match the thickness of different parts of the fan blade, different excitation frequencies can be Detect damage at different depths, when the frequency is high, it is beneficial to detect surface damage. When the frequency is low, it can detect deep damage, provide two-dimensional infrared thermal imaging images in different directions for three-dimensional thermal imaging, and finally construct the infrared three-dimensional thermal image analysis and judgment of the blade through the information processing unit.

The materials selected for the synchronous detection device for damage to fan blades are all high-strength and lightweight materials with a bending and compressive strength of more than 500Mpa and a relative density between 1.0 and 1.5; the multiple sets of moving mechanisms , The number of the ring set mechanism is the same as the number of fan blades.

The beneficial effect of the present invention lies in the online detection of fan blades; different curved surfaces of fan blades have differences in thickness, and the detection device has an excitation source adjustment system that adapts to blade curved surfaces and thickness changes; it can realize the construction of three-dimensional infrared thermal images of wind blades , Through the three-dimensional infrared thermal image, the location of the defect can be found visually and intuitively; it has the advantages of high degree of automation, strong adaptability, and high detection efficiency.

Description of drawings

Figure 1 is a schematic diagram of the overall assembly of the present invention.

Fig. 2 is a schematic diagram of the circular collection mechanism of the present invention.

Fig. 3 is a schematic diagram of the synchronization mechanism of the present invention.

Fig. 4 is a partial schematic diagram of the synchronization mechanism trigger module of the present invention.

Fig. 5 is a schematic diagram of the propulsion mechanism of the present invention.

Fig. 6 is a schematic diagram of the lifting mechanism of the present invention.

Detailed ways

The implementation of the present invention will be described in detail below with reference to the drawings and examples, so as to fully understand and implement the implementation process of how to use technical means to solve technical problems and achieve technical effects in the present invention.

As shown in Figure 1, it is a schematic diagram of the overall assembly of a fan blade damage synchronization detection device, including a lifting mechanism 1, a propulsion mechanism 2, a synchronization mechanism 3, a moving mechanism 4, a ring collection mechanism 5, a mobile workbench 6, and a connecting piece 7. Information processing unit 8; the lifting mechanism 1 is connected to the propulsion mechanism 2; the propulsion mechanism 2 is movably connected to the synchronous mechanism 3; multiple groups of moving mechanisms 4 are mounted on the synchronous mechanism 3 to connect with the fan The number of blades is the same; the moving mechanism 4 is equipped with a mobile workbench 6;

As shown in Figure 2, the ring collection mechanism 5 includes an infrared thermal imager 51, an infrared flash lamp excitation source adjustment system 52, a ring base 53, an infrared flash lamp excitation source adjustment system 52 includes an infrared excitation source flash lamp 521, and a distance and angle detection module 522, excitation source support 523, steering gear 524, electric telescopic rod 525, arbitrary signal generator 526, amplifier 527, circular base 53; described infrared flash lamp excitation source 521 is fixed on described excitation source support 523, and excitation source The radial angle and axial direction of the support 523 are respectively connected by the steering gear 524, the telescopic end of the electric telescopic rod 525 and the excitation source support 523, and the thermal imager 51 and the electric telescopic rod 525 The fixed end is mounted on the inner side of the circular base body 53 , and the circular ring base body 53 is linked with the workbench 6 through the connecting piece 7 .

As shown in Figure 3, the assembly schematic diagram of synchronous mechanism 3, comprises synchronous mechanism substrate 31, intelligent locking device 32, sensor 33, centering detection module 34, synchronous mechanism 3 will detect by synchronous mechanism substrate 31 and intelligent locking device 32 The device is locked with the fan, the synchronous mechanism base 31 is radially restrained by the fan blade concave structure matched with the fan hub shell, and the intelligent locking device 32 completes the axial restraint locking; the centering detection device detects the axis of the synchronous mechanism base and The axis of the fan hub shell coincides, and the sensor sensing push mechanism pushes and detects it in place; the intelligent locking device 32 includes a lock tongue 321, a trigger module 322, a reduction mechanism 323, a drive motor 324, a controller 325, and a transmission mechanism 326; as shown in Figure 4, Synchronization mechanism trigger module 322 partial schematic diagram, described trigger module comprises pressure sensor 3221, pressure spring 3222, pressure ball 3223, and its average spiral diameter is less than ball diameter; Multiple groups of trigger modules 322 adopt OR gate circuit connection; Described trigger module 322 triggers With the rotation of the driving motor 324, the reduction mechanism 323 completes the power transmission between the driving motor 324 and the transmission mechanism 326, and the transmission mechanism 326 drives the locking tongue 321 to execute the locking action of the intelligent locking device 32. switch.

As shown in Figure 5, the propulsion mechanism 2, which is the intermediate connection mechanism between the mechanism lifting mechanism 1 and the synchronous mechanism 3, controls the opening and closing of the intelligent locking device 32 of the synchronous mechanism 3 through the expansion and contraction of the hydraulic rod .

As shown in Figure 6, the lifting mechanism of the lifting mechanism 1 includes a lifting module 11, a box-shaped elliptical telescopic arm 12, and a base 13. The lifting module includes a triangular arm 111, a pull rod 112, and a hydraulic cylinder assembly. 113, the box-shaped elliptical telescopic arm 12 is formed by socketing of multi-section arms; the triangular arm 111 and the pull rod 112 are arranged symmetrically, the lower end of the triangular arm 111 is hinged to the front end of the base 13, and the lower end of the pull rod 112 is connected to the triangular arm The upper end of 111 is hinged, the upper end of pull rod 112 is hinged with the box-shaped elliptical telescopic arm 12, the upper end of the hydraulic cylinder assembly 113 is hinged with the box-shaped elliptical telescopic arm 12, and the lower end is hinged with the middle of the triangular arm 111.

The lifting process of the lifting mechanism: the lifting module 11 of the lifting mechanism 1 is started, and the lifting angle of the lifting module 11 is lifted from 0° to 90°, so that the box-shaped elliptical telescopic boom 12 is lifted from the initial position parallel to the ground. Raised to the vertical position of the parallel fan tower, the box-shaped elliptical telescopic arm 12 is extended, and when the centering detection module 33 located on the central axis of the synchronous mechanism 3 detects that the central axis of the synchronous mechanism base 31 coincides with the axis of the fan hub shell , the box-type elliptical telescopic arm 12 stops extending.

The synchronization process of the detection device: the hydraulic rod of the propulsion mechanism 2 is extended, and the detection device is pushed along the axial direction of the fan hub shell. When the fan hub shell triggers the sensor 33 at the bottom of the groove of the synchronization mechanism, the push mechanism 2 stops pushing, and the push mechanism The extension end of 2 is always in contact with the pressure ball 3223 of the synchronization mechanism 3, and the dead bolt 321 of the intelligent locking device 32 is in an unlocked state; when the fan hub shell triggers the sensor 33 at the bottom of the groove of the synchronization mechanism, the push mechanism 2 stops pushing, and at the same time Trigger the intelligent locking device 32, the pressure spring 3222 will bounce the pressure ball 3223, the pressure sensor 3221 will transmit the pressure signal at this time to the controller 325, the controller 325 controls the rotation of the drive motor 324, and the speed reduction mechanism 323 will drive the power of the drive motor 324 The transmission is transmitted to the transmission mechanism 326, the lock tongue 321 of the intelligent locking device is closed, and finally the synchronous mechanism 3 completes the radial and axial constraints on the detection device and the fan.

Operation of the moving mechanism: the movement of the workbench 6 is driven by the ball screw mechanism, and the moving mechanism 4 transmits the ring collection mechanism 5 from the end of the initial moving mechanism 4 to the wingtip of the fan blade. The single feed range distance is transmitted to the root of the blade until it is transmitted to the root of the blade.

The infrared flashlight excitation source adjustment system adjusts the height and angle process of the excitation source: the distance and angle detection module 522 transmits the distance between the infrared flashlight excitation source 521 and the real-time angle parameters of the steering gear 524 to the processing unit 8, and the processing unit 8 passes Analyze and calculate the height and angle of the excitation adjustment, through the steering gear 524 and the electric telescopic rod 525 of the infrared flash lamp excitation source adjustment system 52, the distance between the infrared flash lamp excitation source 521 and the blade of the fan under test is adjusted through the electric telescopic rod 525 To 550mm-650mm, by adjusting the angle of the steering gear 524 to change the overlapping area between the infrared flashlight excitation sources 524, through the infrared flashlight excitation adjustment system 52 to improve the temperature field between the infrared flashlight excitation sources 521 due to angle and height The shortcomings of large spatial gradient and poor uniformity can be greatly improved on the one hand, and on the other hand, the spatial range of thermal wave radiation and the primary detection area can be increased.

Infrared flash lamp excitation source adjustment system adjusts the excitation frequency process: the information processing unit 8 selects the appropriate excitation frequency through the thickness parameters of the blades in the database, and the information processing unit 8 sends the instruction of the required frequency to the arbitrary signal generator 526, and the arbitrary signal generator 526 sends the signal to the amplifier 527, and the amplifier 527 transmits the final signal to the infrared flash lamp excitation source 521, and the excitation frequency of the infrared flash lamp excitation source 521 adapts to the thickness of the measured fan blade, so that the infrared thermal imager 51 collects The thermal image is a two-dimensional thermal image of damage at different thicknesses.

The establishment process of the infrared three-dimensional image of the fan blade: multiple sets of infrared imagers 51 complete the acquisition of infrared two-dimensional thermal images of the same part of the blade in multiple directions, the sampling frequency is set to 5Hz-10Hz, and the acquisition time is 90s. The acquired blade image The data is sent to the information processing unit 8; through the digital image processing algorithm of the image processing unit of the information processing unit 8, these thermal images are processed and identified at the pixel level to find out a large number of features; Match a large number of features to find out which points on different thermal images are the same point; construct a scene coordinate system, and invert and calculate the acquisition position and angle (three-dimensional) corresponding to each thermal image by solving high-order equations and other methods , that is, to locate the thermal imager when each thermal image is taken; finally, according to the relative spatial coordinates and directions of the thermal imager and the data of the same-named points, use the metrology algorithm to find the spatial three-dimensional coordinates of all the same-named points; a large number of identical-named points Form a point cloud, then connect the points to form a surface, and finally paste the thermal image on the surface to form an infrared three-dimensional thermal image model, so that the size and position of the leaf damage can be displayed very intuitively.

Device reset process: the moving mechanism 4 quickly rewinds the ring collection mechanism 5 to the initial position at the end of the moving mechanism 4, and the propulsion mechanism 2 is extended to match the synchronous mechanism 3 to trigger the unlocking of the intelligent locking device 32, and retract the detection device. The lifting mechanism 1 starts with the box-shaped elliptical telescopic arm 12 and the lifting module 11 to reset the detection device to the initial horizontal position.

Claims (8)

1. a kind of fan blade damages sync detection device, which is characterized in that including lifting mechanism, propulsive mechanism, lazy-tongs, 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 lazy-tongs；The lazy-tongs Upper that multigroup 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. fan blade damage check synchronizing device according to claim 1, which is characterized in that the lazy-tongs include Lazy-tongs matrix, intelligent locking apparatus；The intelligent locking apparatus includes lock tongue, transmission mechanism, deceleration mechanism, driving electricity Machine, multigroup trigger module；Multigroup trigger module includes pressure sensor, pressure ball, compression spring, wherein the pressure bullet Spring average helical diameter is less than the diameter of pressure ball；The trigger module is connected using OR circuit；The trigger module triggering The rotation of the driving motor, the deceleration mechanism realize the power transmission between the driving motor and the transmission mechanism, The transmission mechanism drives lock tongue to execute the switch of intelligent locking apparatus；The planform of the lazy-tongs matrix constrains The radial degree of freedom of detection device and wind turbine；The planform of the lazy-tongs matrix and intelligent locking apparatus are by detection device Together with wind turbine Complete Bind so that device detection is synchronous with blower fan 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 swashs It is multigroup to encourage source regulating system quantity；It is uniformly placed on annulus matrix between the infrared flashlight driving source regulating system, The more infrared thermoviewers are uniformly distributed in the annulus matrix between the infrared flashlight driving source regulating system；It is described red Outer flash lamp driving source regulating system carries out height, angle, frequency to infrared flashlight and adjusts；The regulating system to height, The regulating device of angle includes distance and Angle Measurement Module, microprocessor module, driving source bearing, steering engine, electric telescopic rod； The distance is located at Angle Measurement Module on driving source bearing, and axial length and the radial angle of the driving source bearing are distinguished It is adjusted by the electric telescopic rod and the steering engine, the telescopic end of the electric telescopic rod is connect with the excitation bearing, described The fixing end of thermal infrared imager and the electric telescopic rod coordinates and on the annulus matrix；The regulating system is to frequency The regulating device of rate includes arbitrarily signal generating device, amplifier, the input terminal of the arbitrarily signal generating device at described information Unit connection is managed, output end is connect with the amplifier, and the amplifier other end is connect with the infrared flare driving source；Institute Annulus matrix is stated to connect by chaining part and the workbench of mobile mechanism；The reception and transmitting of above equipment information are all to pass through nothing Line come complete transmission.

4. fan blade according to claim 1 damages sync detection device, which is characterized in that the hydraulic-feed mechanism Extension and contraction control described in lazy-tongs locking.

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. fan blade failed synchronization detection device according to claim 1, which is characterized in that the lifting mechanism is by lifting Rising mould block and box elliptic telescopic arm composition, the lifting module includes Triangular Arm, pull rod, hydraulic cylinder assembly；Triangular Arm with Pull rod is to be arranged symmetrically, and the Triangular Arm lower end is hinged with pan frontward end, and the pull rod lower end is cut with scissors with the Triangular Arm upper end It connects, the pull rod upper end is hinged with the box elliptic telescopic arm, and the upper end of the hydraulic cylinder assembly and the box are oval Formula telescopic arm is hinged, and lower end is equal to single with the hinged box elliptic telescopic arm single-unit telescopic arm overall length in the middle part of the Triangular Arm The sum of extended length and nested lengths are saved, nested parts of the single-unit telescopic arm in previous section telescopic arm are according to the minimum lap of splice Principle is chosen, and elongation selectes according to the elasticity modulus of selected materials with Poisson's ratio；On the box elliptic telescopic arm End connection propulsive mechanism.

7. fan blade according to claim 1 damages sync detection device, which is characterized in that described information processing unit In include the infrared three-dimensional thermography unit of two-dimensional infrared thermography structure, driving source parameter processing unit.

8. fan blade damage inspection sync detection device according to claim 1, which is characterized in that the mechanism is all made of Bending and compressive strength are in 500Mpa or more, high strength light material of the relative density between 1.0-1.5；Multigroup shifting Motivation structure, the quantity of the annulus collecting mechanism are identical as the quantity of fan blade.