CN215333255U - Zero calibration device for fan blade - Google Patents
Zero calibration device for fan blade Download PDFInfo
- Publication number
- CN215333255U CN215333255U CN202121451729.2U CN202121451729U CN215333255U CN 215333255 U CN215333255 U CN 215333255U CN 202121451729 U CN202121451729 U CN 202121451729U CN 215333255 U CN215333255 U CN 215333255U
- Authority
- CN
- China
- Prior art keywords
- bearing
- photosensitive receiving
- plate
- fan blade
- receiving plate
- 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
Images
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- 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
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/328—Blade pitch angle
-
- 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
- F05B2270/00—Control
- F05B2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
- F05B2270/802—Calibration thereof
-
- 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
- F05B2270/00—Control
- F05B2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
- F05B2270/804—Optical devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (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)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model provides a zero calibration device for a fan blade, belonging to the technical field of wind driven generator equipment and comprising: laser emitter, reflecting plate, photosensitive receiving plate and treater, the reflecting plate sets up perpendicularly on becoming the terminal surface of thick liquid bearing and perpendicular with becoming the radial face of thick liquid bearing, and laser emitter sets up on the terminal surface of bearing fixing base, and laser emitter sets up the center at photosensitive receiving plate, and the light that laser emitter launches can reflect to photosensitive receiving plate on to the reflecting plate. This fan blade zero-position calibrating device can calculate the deflection angle through laser emitter reflection back reflection again on the photosensitive receiving plate, can the deflection angle of the pitch bearing that links to each other with the blade rather than the bearing fixing base of accurate measurement to enable fan blade accurate calibration return to zero-position point, this calibrating device simple structure, can the automatic measure need not the manual work, and measure the accuracy, the good long service life of stability, effectively guarantee fan life-span and generated energy.
Description
Technical Field
The utility model relates to the technical field of wind driven generator equipment, in particular to a zero position calibrating device for a fan blade.
Background
In the wind turbine generator, the blades can revolve around the center of the wind wheel under the action of wind force, and each blade can rotate around the axis of the blade, so that wind finding is realized. The angle between the characteristic chord line on the tip cross section and the plane of blade rotation is called the stagger angle. The zero-position angle of the blade refers to an installation angle when the self-rotation angle of the blade is 0 degree. The zero position angle relative deviation means that the zero position angles of the three blades are inconsistent and have relative deviation. The relative deviation of the blade angle can cause pneumatic unbalance, so that the pneumatic force among the blades is inconsistent, and the service life and the generating capacity of the fan are further influenced. In the blade hoisting and inserting process, a plurality of studs preset at the end part of a blade root are inserted into a pitch-variable bearing of a machine head to be fixed, and the pitch-variable bearing is driven to rotate by a pitch-variable motor. Because a plurality of studs are inserted into and butted at the same time, the actual angle deviation caused by blade hoisting and butting is small, and the 0-degree contraposition of the variable pitch motor and the variable pitch bearing can be debugged before the machine head is installed so as to ensure accurate contraposition, so that the main reason for the angle deviation of the blades is formed after the blades are installed, and the zero-position angle deviation appears after the variable pitch motor is electrified and the error is accumulated after the variable pitch system is operated mainly due to two reasons 1. And debugging and correcting after deviation is necessary work for ensuring the service life and the generating capacity of the fan. The installation position of the blade in the machine head is short of a detection device capable of automatically detecting the deflection angle of the blade.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a zero calibration device for a fan blade, which automatically detects the deflection angle between the mounting end part of the blade and a zero angle through photoelectric sensing so as to accurately return and correct and solve the existing problems.
The embodiment of the utility model is realized by the following technical scheme:
a fan blade zero calibration device for detecting the deflection angle of a variable pitch bearing and a bearing fixing seat comprises: the laser slurry changing device comprises a laser transmitter, a reflecting plate, a photosensitive receiving plate and a processor, wherein the reflecting plate is vertically arranged on the end face of a slurry changing bearing and is vertical to the radial face of the slurry changing bearing, the laser transmitter is arranged on the end face of a bearing fixing seat, the transmitting direction of the laser transmitter emits to the center of the slurry changing bearing, the photosensitive receiving plate is arc-shaped, the arc-shaped circle and the slurry changing bearing are concentric circles, the laser transmitter is arranged at the center of the photosensitive receiving plate, the photosensitive receiving plate is connected with the processor, and light emitted by the laser transmitter emits to the reflecting plate and can be reflected to the photosensitive receiving plate.
Furthermore, a plurality of photosensitive diodes are linearly arranged on the photosensitive receiving plate, each photosensitive diode is connected to the processor, and a laser transmitter is arranged in the linear arrangement center of each photosensitive diode.
Further, fan blade zero calibration device still includes the mounting panel, photosensitive receiving plate sets up on the mounting panel.
Further, the mounting plate is rectangular.
Furthermore, the reflecting plate is welded on the variable-pitch bearing, and the mounting plate is welded on the bearing fixing seat.
Further, fan blade zero calibration device still includes the dust cover, the dust cover surrounds the top and the side at photosensitive receiving plate.
Furthermore, dust blocking inclined plates are arranged on the upper side surface and the lower side surface of the reflecting plate.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
this fan blade zero-position calibrating device can calculate the deflection angle through laser emitter reflection back reflection again on the photosensitive receiving plate, can the deflection angle of the pitch bearing that links to each other with the blade rather than the bearing fixing base of accurate measurement to enable fan blade accurate calibration return to zero-position point, this calibrating device simple structure, can the automatic measure need not the manual work, and measure the accuracy, the good long service life of stability, effectively guarantee fan life-span and generated energy.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a state diagram of the pitch bearing when the pitch bearing is deflected by a certain angle and then is calibrated and detected.
Fig. 3 is an external view of the dust cover.
Icon: the device comprises a laser emitter 1, a reflection plate 2, a photosensitive receiving plate 3, a processor 4, a mounting plate 5, a dust cover 6, a dust-blocking inclined plate 7, a variable-pitch bearing 8 and a bearing fixing seat 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the following, referring to fig. 1, a zero calibration device for a fan blade is used to measure a deflection angle between a zero position and a calibrated zero position of the fan blade, and actually only needs to measure a deflection angle between a pitch bearing 8 connected to the blade and a bearing fixing seat 9 thereof, and since the deflection angle of the blade is only a few degrees, the device only needs to check an angle change within a range of a few degrees, and the zero calibration device includes: laser emitter 1, reflecting plate 2, photosensitive receiving plate 3 and treater 4, reflecting plate 2 sets up perpendicularly on become the terminal surface of thick liquid bearing 8 and perpendicular with become the radial face of thick liquid bearing 8, and laser emitter 1 sets up on the terminal surface of bearing fixing base 9, and 1 transmission direction directive of laser emitter is to become the center of thick liquid bearing 8, and laser emitter 1 sets up at the center of photosensitive receiving plate 3, and photosensitive receiving plate 3 connects treater 4. The laser transmitter 1 with components and parts and the photosensitive receiving plate 3 are arranged on the fixed bearing fixing seat 9, and the simple reflecting plate is arranged on the rotating variable-size bearing 8, so that the stability of the device can be improved. Light that laser emitter 1 launches can reflect to photosensitive receiving panel 3 towards reflecting plate 2, when becoming thick liquid bearing 8 and its bearing fixing base 9 and being in the zero bit of demarcation, reflecting plate 2 is at the zero bit, the laser penetrates reflecting plate 2 directly again and penetrates back to return on laser emitter 1, can not reflect to photosensitive receiving panel 3, refer to figure 2, when will carry out calibration after becoming thick liquid bearing 8 deflection angle, because reflecting plate 2 has deflected the angle, the reflected light deflected certain angle after the laser penetrates reflecting plate 2 and reflects and go out, and then reflect to photosensitive receiving panel 3 of laser emitter 1 both sides, treater 4 is used for calculating out the deflection angle according to the position that the laser reflected to photosensitive receiving panel. In fact, due to the angle of incidence and the angle of reflection, the angle of deflection of the reflected light is exactly twice the angle of deflection of the pitch bearing 8.
To explain the principle of the photosensitive receiving plate 3, in order to avoid angular receiving deviation, the photosensitive receiving plate 3 is arc-shaped, the arc-shaped circle and the variable-pitch bearing 8 must be concentric circles, a plurality of photodiodes are linearly arranged on the photosensitive receiving plate 3, each photodiode is connected to the processor 4, and the laser emitter 1 is arranged at the linear arrangement center of the photodiodes. The photosensitive diode receives the laser and sends a signal to the processor 4, the processor 4 calculates according to the position of the diode receiving the laser on the photosensitive receiving plate 3 and the distance between the photosensitive receiving plate 3 and the reflecting plate 2, and a simple trigonometric function can be calculated. Therefore, the deflection angle of the pitch bearing 8 at the zero point can be accurately obtained.
In order to prolong the laser distance after the reflection of the reflecting plate 2, the fan blade zero calibration device further comprises a mounting plate 5, the photosensitive receiving plate 3 is arranged on the mounting plate 5, and the mounting plate 5 can move outwards for a certain distance to be mounted, so that the receiving range of the laser on the photosensitive receiving plate 3 is widened, the number of the arranged photosensitive diodes is increased, and the deflection angle can be obtained more accurately. The mounting plate 5 is rectangular, so that the straight edge of the mounting plate 5 can be conveniently measured, aligned and mounted, and the mounting angle is ensured.
Preferably, the reflection plate 2 is welded on the pitch bearing 8 and the mounting plate 5 is welded on the bearing fixing seat 9 due to rotation and vibration.
The place that the fan was used generally has the sand blown by the wind, in order to avoid influencing the light, guarantees calibrating device's life-span, and fan blade zero position calibrating device includes dust cover 6, refers to fig. 1 and fig. 3, and dust cover 6 surrounds the higher authority and the side at photosensitive receiving panel 3, reduces photosensitive receiving panel 3 and is infected with the dust. Meanwhile, because the reflecting plate 2 rotates at a high speed, in order to avoid the adverse effect of air friction on the reflecting plate 2, the upper and lower side surfaces of the reflecting plate 2 are provided with dust blocking inclined plates 7.
The using process of the utility model is as follows: before fan blades are installed, a calibration zero point is arranged on the variable pitch bearing 8 and the bearing fixing seat 9, laser emitted by the laser emitter 1 at the point is vertically emitted into the reflecting plate 2, and the laser can be directly emitted back to the laser emitter 1. After the fan blade is installed, zero deflection can be generated due to the stress of the pitch bearing 8, installation and calibration are carried out after installation, the blade and the pitch bearing 8 are controlled by a control system to rotate to the zero position, the laser transmitter 1 transmits laser, whether the laser can directly irradiate back to the laser transmitter 1 or not is judged, if the laser returns to the photosensitive receiving plate 3, an angle deviation exists, the processor 4 calculates a deviation angle, and the blade rotates the angle to return to the zero position. After the fan operates for a period of time, the calibration can be carried out again, and the service life and the generating capacity of the fan are ensured.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention, which is defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a fan blade zero-position calibrating device for detect become thick liquid bearing (8) and bearing fixing base (9) deflection angle, its characterized in that includes: the slurry-variable bearing comprises a laser transmitter (1), a reflecting plate (2), a photosensitive receiving plate (3) and a processor (4), wherein the reflecting plate (2) is vertically arranged on the end face of a slurry-variable bearing (8) and is perpendicular to the radial face of the slurry-variable bearing (8), the laser transmitter (1) is arranged on the end face of a bearing fixing seat (9), the transmitting direction of the laser transmitter (1) emits to the center of the slurry-variable bearing (8), the photosensitive receiving plate (3) is arc-shaped, the arc-shaped circle and the slurry-variable bearing (8) are concentric circles, the laser transmitter (1) is arranged at the center of the photosensitive receiving plate (3), the photosensitive receiving plate (3) is connected with the processor (4), and light emitted by the laser transmitter (1) emits to the reflecting plate (2) and can be reflected to the photosensitive receiving plate (3).
2. The fan blade zero calibration device according to claim 1, wherein a plurality of photodiodes are linearly arranged on the photosensitive receiving board (3), each of the photodiodes is connected to the processor (4), and a laser transmitter (1) is arranged at the center of the linear arrangement of the photodiodes.
3. The fan blade zero calibration device of claim 1 further comprising a mounting plate (5), wherein the photosensitive receiving plate (3) is disposed on the mounting plate (5).
4. A fan blade null alignment device as claimed in claim 3, wherein the mounting plate (5) is rectangular.
5. The zero calibration device for fan blades as set forth in claim 3, wherein the reflection plate (2) is welded to the pitch bearing (8), and the mounting plate (5) is welded to the bearing fixing seat (9).
6. The fan blade zero calibration device as set forth in claim 1 further comprising dust shields (6), wherein the dust shields (6) are enclosed on the upper and side edges of the photosensitive receiving plate (3).
7. The fan blade zero position calibration device according to claim 1, wherein the upper and lower sides of the reflection plate (2) are provided with dust blocking inclined plates (7).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451729.2U CN215333255U (en) | 2021-06-28 | 2021-06-28 | Zero calibration device for fan blade |
| DE202022103011.1U DE202022103011U1 (en) | 2021-06-28 | 2022-05-29 | Referencing device for wind turbine blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451729.2U CN215333255U (en) | 2021-06-28 | 2021-06-28 | Zero calibration device for fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215333255U true CN215333255U (en) | 2021-12-28 |
Family
ID=79562623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121451729.2U Active CN215333255U (en) | 2021-06-28 | 2021-06-28 | Zero calibration device for fan blade |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN215333255U (en) |
| DE (1) | DE202022103011U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450860A (en) * | 2022-09-02 | 2022-12-09 | 广东金志利科技股份有限公司 | Generator set shell for wind generating set |
-
2021
- 2021-06-28 CN CN202121451729.2U patent/CN215333255U/en active Active
-
2022
- 2022-05-29 DE DE202022103011.1U patent/DE202022103011U1/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450860A (en) * | 2022-09-02 | 2022-12-09 | 广东金志利科技股份有限公司 | Generator set shell for wind generating set |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202022103011U1 (en) | 2022-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210396977U (en) | Measurement structure for clearance between blades and tower barrel of wind turbine generator | |
| CN110939549A (en) | Blade clearance monitoring system and blade clearance monitoring method | |
| CN215333255U (en) | Zero calibration device for fan blade | |
| EP0353968B1 (en) | Detection and display device | |
| CN106286154B (en) | System for measuring azimuth angle of wind wheel of wind driven generator | |
| EP0089228B1 (en) | A method of detecting positions of blades of a rotating helicopter rotor | |
| KR102028606B1 (en) | Windlidar calibration system and calibration method using the same | |
| CN108303005B (en) | Wind generator wind vane installation zero error detection and calibration device | |
| CN113137344B (en) | Wind generating set clearance measurement device and method and wind generating set | |
| CN113153656B (en) | Tower clearance monitoring system and monitoring method of fan | |
| CN110388951B (en) | Device and method for monitoring bolt looseness of wind generating set | |
| CN112833787B (en) | Repeated positioning precision measuring device and repeated positioning precision measuring method | |
| CA1279475C (en) | Blade pitch measurement apparatus and method | |
| WO2021051488A1 (en) | Angular displacement measurement apparatus, lidar, and angle adjustment method | |
| CN217712821U (en) | Off-line detection device | |
| CN113375576A (en) | Light spot diameter detection system and method and light spot energy distribution detection method | |
| US20220195992A1 (en) | Detecting rotor blade clearance in a wind turbine using doppler shift and a mathematical model | |
| CN220930581U (en) | Laser radar cradle head | |
| CN220795465U (en) | Laser radar course angle detection device | |
| CN107831331A (en) | Rotary body detection means and system | |
| CN113107784B (en) | Laser correction method, device, equipment and medium for wind turbine generator blade angle | |
| CN219474531U (en) | Laser displacement sensor for rotary scanning measurement | |
| CN210152832U (en) | H-shaped vertical axis wind generating set with unit load detection device | |
| CN114059784B (en) | Wallboard mounting system and control method thereof | |
| CN216617756U (en) | Vibration monitoring device of wind turbine tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |