CN202814375U - Blade displacement measuring device and blade displacement measuring system for wind turbine blade experiment bench - Google Patents
Blade displacement measuring device and blade displacement measuring system for wind turbine blade experiment bench Download PDFInfo
- Publication number
- CN202814375U CN202814375U CN 201220375471 CN201220375471U CN202814375U CN 202814375 U CN202814375 U CN 202814375U CN 201220375471 CN201220375471 CN 201220375471 CN 201220375471 U CN201220375471 U CN 201220375471U CN 202814375 U CN202814375 U CN 202814375U
- Authority
- CN
- China
- Prior art keywords
- blade
- displacement
- blade displacement
- displacement measuring
- experiment table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model discloses a blade displacement measuring device and a blade displacement measuring system for a wind turbine blade experiment bench. The blade displacement measuring device comprises two highly-elevated sensor mounting bases adjacent to a measured blade, and two stay-wire displacement sensors respectively mounted on the two sensor mounting bases, wherein ends of sensor stay wires of the two stay-wire displacement sensors are respectively connected with measured points of the measured blade on the experiment bench. The blade displacement measuring device of the utility model is capable of measuring, in real time, the displacement of any point on the measured blade after the loading, with accurate calculation and high precision. In addition, with a simple structure, the blade displacement measuring device is convenient to mount and can be widely applied. The utility model also provides the blade displacement measuring system for a wind turbine blade experiment bench. The blade displacement measuring system comprises the multiple blade displacement measuring devices and a data acquisition device, which acquires the displacement information of the measured point in the multiple blade displacement measuring devices and processes data. By means of the measuring system, the displacement of each measured point on the measured blade after loading can be accurately calculated, and the theoretical basis is provided for strength analysis of the blade in practical application.
Description
Technical field
The utility model relates to the wind power technology field, relates in particular to a kind of blade displacement measurement mechanism and measuring system of pneumatic equipment blades made experiment table.
Technical background
In recent years, development along with wind power technology, the size of wind electricity blade is increasing, physical dimension also becomes increasingly complex, distortion size in real work behind the stand under load is also thereupon increasing, for preventing that blade and tower cylinder from interfering and the appearance of other blade strength problem, need to carry out correlation intensity analysis and deformation experiment for large-scale blades.
The mode that now intensive analysis of blade is adopted mainly is the mode of static loading, thereby force akin flexural deformation under leaf development and the actual working conditions by apply pulling force at each load(ing) point, verify with this whether blade strength is enough, and the size of measuring deflection.
Mostly traditional displacement measurement is the measurement in straight-line displacement, the mode that adopts has laser measurement, optical grating ruler measurement, and the single-point backguy is measured, these methods are simple and convenient, and can require to adjust metering system according to different accuracy, yet not merely be straight-line displacement in now a lot of apparatuses and the experimentation, especially in the bending blade deformation process, the curved form of the change in location of its each point, and the blade end change in displacement is larger, in this case, laser measurement has just lost its effect, and that the large displacement measurement grating scale also can seem is awkward, and cost is high.In the not high situation of dimension precision requirement, also can adopt the single-point backguy to measure, the simplest is exactly the mode of usefulness meter ruler, in the measuring process, sometimes needs two people jointly to participate in, and measuring accuracy is not very high, and labour intensity is large.
For the measurement of large displacement scale, can also adopt the mode of gps position measurement, yet this kind mode cost is high, measuring error is bigger.
Summary of the invention
The purpose of this utility model is exactly the problem that exists in order to overcome above-mentioned prior art, a kind of blade displacement measurement mechanism of pneumatic equipment blades made experiment table is provided, this device adopts two stay wire displacement sensors, by triangle conversion principle, measure in real time the displacement of tested blade any point after loading, simple in structure, calculate accurately; The utility model also provides a kind of blade displacement measuring system of pneumatic equipment blades made experiment table.
In order to realize above-mentioned purpose of the present utility model, provide following technical scheme:
A kind of blade displacement measurement mechanism of pneumatic equipment blades made experiment table comprises: be installed near two sensor installation seats that frame is high of tested blade; Be installed in respectively two stay wire displacement sensors on two sensor installation seats, and the end of the sensor backguy rope of described two stay wire displacement sensors respectively be installed in experiment table on the measured point of tested blade link to each other.
Preferably, the described measured point of described tested blade is provided with abutment ring, and its end with each described sensor backguy rope links to each other.
Wherein, described sensor installation seat is high by the fixed support frame.
Preferably, described fixed support is two columns, and each described sensor installation seat is installed in the top of each described column.
Wherein, described fixed support is comprised of a vertical support and the horizontal strut that is fixedly arranged on the vertical support top, and each described sensor installation seat is installed in the two ends of described horizontal strut.
The utility model also provides a kind of blade displacement measuring system of pneumatic equipment blades made experiment table, and it comprises: a plurality of aforesaid blade displacement measurement mechanisms; Gather measured point displacement information in described a plurality of blade displacement measurement mechanism and carry out the data collector that data are processed.
Wherein, described a plurality of blade displacement measurement mechanism links to each other from the different measured points of tested blade respectively.
Wherein, described data collector comprises: the data acquisition unit that gathers measured point displacement information in a plurality of blade displacement measurement mechanisms; The host computer that is connected and carries out the data processing with data acquisition unit.
With respect to prior art, the blade displacement measurement mechanism of pneumatic equipment blades made experiment table of the present utility model has following advantage: adopt stay wire displacement sensor that the displacement of tested blade is measured, can the real-time Transmission measurement data also can carry out long continuous coverage, computational analysis is simply accurate, precision is high, and this measurement mechanism is simple in structure, and is easy for installation; Adopt the fixedly mode of stay wire displacement sensor of fixed support, so that the high and low position of this sensor is adjustable, the scope of application is wider.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is the structural representation of the blade displacement measurement mechanism of pneumatic equipment blades made experiment table of the present utility model;
Fig. 2 is the vertical view of the blade displacement measurement mechanism of pneumatic equipment blades made experiment table shown in Figure 1;
Fig. 3 is the structural representation of the blade displacement measuring system of pneumatic equipment blades made experiment table of the present utility model.
Description of reference numerals: 1-fixed support; The 2-sensor installation seat; The 3-stay wire displacement sensor; 4-sensor backguy rope; The tested blade of 5-; The 6-abutment ring.
Embodiment
As shown in Figure 1, the blade displacement measurement mechanism of pneumatic equipment blades made experiment table of the present utility model comprises: be installed near the high sensor installation seat 2 of two framves the tested blade 5; Be installed in respectively two stay wire displacement sensors 3 on two sensor installation seats 2, and the end of the sensor backguy rope 4 of two stay wire displacement sensors 3 respectively be installed in experiment table on the measured point of tested blade 5 link to each other.The data of the two stay wire displacement sensors 3 of employing can produce tested blade in experimentation owing to occuring bending and deformation corresponding displacement are carried out real-time Transmission, and can carry out long continuous coverage, length according to measured Atria limit, utilize triangle conversion principle can push away to get instantaneous position, measured point, thereby as can be known the measured point in the horizontal direction with vertical direction on displacement variable, therefore computational analysis is simply accurate, and the computational data precision is high.
Wherein, as shown in Figure 1, sensor installation seat 2 is high by 1 of fixed support.Fixed support 1 can adopt the mode of two columns, this moment each sensor installation seat 2 is installed in the top of each column; Fixed support 1 also can adopt the mode (not shown in FIG.) that is comprised of a vertical support and the horizontal strut that is fixedly arranged on the vertical support top, this moment each sensor installation seat 2 is installed in the two ends of horizontal strut.Since adopt the fixing form of fixed support, so the high and low position of stay wire displacement sensor is adjustable, so the scope of application is wider, and because stay wire sensor self value of thrust is less, so can the result of experiment not impacted.
In addition, for easy for installation, be provided with abutment ring 6 in the measured point of tested blade 5, its end with each sensor backguy rope 4 links to each other.
As shown in Figure 3, the utility model also provides a kind of blade displacement measuring system of pneumatic equipment blades made experiment table, it comprises: a plurality of blade displacement measurement mechanisms provided by the utility model, wherein, each blade displacement measurement mechanism respectively from tested blade on different measured points link to each other; Gather measured point displacement information in a plurality of blade displacement measurement mechanisms and carry out the data collector that data are processed, it comprises: the data acquisition unit that gathers measured point displacement information in a plurality of blade displacement measurement mechanisms; The host computer that is connected and carries out the data processing with data acquisition unit.
During displacement measurement after the blade displacement measurement mechanism that uses the pneumatic equipment blades made experiment table carries out measured point stand under load of tested blade, as shown in Figure 1, at first fixed support 1 is fixed near the ground the tested blade 5, then adjust the vertical height of stay wire displacement sensor 3, sensor backguy rope 4 is the level of state, be fixedly mounted on two stay wire displacement sensors 3 respectively on two sensor installation seats 2 this moment, fix after the stay wire displacement sensor 3 with the end of sensor backguy rope 4 respectively be installed in experiment table on the same measured point of tested blade 5 link to each other, the end of sensor backguy rope 4 is moved along with the movement of measured point.
And the displacement variable of measured point can be calculated by following process: as shown in Figure 2, under original state, the distance that 3 outputs of two stay wire displacement sensors are 2 is L, and the output rope length of the sensor backguy rope 4 of two stay wire displacement sensors 3 is respectively L1 and L2, and the tie point position of the end of sensor backguy rope 4 and the measured point of tested blade 5 is S1.Can calculate tie point position S1 to the vertical range L3 of two stay wire displacement sensors 3 output point lines by Triangle Principle this moment.After tested blade 5 moves, suppose that the tie point position movement is to the S2 point, the output rope of the sensor backguy rope 4 of two stay wire displacement sensors 3 length becomes respectively L1 ＇ and L2 ＇ at this moment, equally, in the time of can calculating the vertical range L3 ＇ of S2 o'clock to two stay wire displacement sensor 3 output point lines and measured point and move to the S2 point from the S1 point by Triangle Principle in the horizontal direction displacement L4 and the displacement L3 ＇-L3 of in the vertical direction.
Equally, when tested blade 5 continues mobilely, suppose at this moment the tie point position movement to the Sn point, but this measurement mechanism also Real-time Collection be changed to L1 to the output rope length of the sensor backguy rope 4 in this moment
N-1And L2
N-1, can be calculated the vertical range L3 of Sn o'clock to two stay wire displacement sensor 3 output point lines by Triangle Principle
N-1And the measured point when moving to the Sn point from the Sn-1 point in the horizontal direction change in displacement and the change in displacement of in the vertical direction, thereby can depict the deformation trace of measured point, can calculate thus each constantly displacement variable of measured point.
Whether the intensity that can determine this measured point on the tested blade by the real-time displacement variable quantity of measured measured point meets the demands.According to this principle, connect a plurality of blade displacement measurement mechanisms by the different measured points on tested blade, can record the real-time displacement variable quantity of a plurality of different measured points, and passing to host computer by data acquisition unit processes, if the measured point quantity of selecting is suitable, just can depict the real displacement variable quantity of each point on the tested blade, thereby provide theoretical foundation for practical application.
Although above-mentioned the utility model is described in detail; but the utility model is not limited to this; those skilled in the art can make amendment according to principle of the present utility model; therefore, all various modifications of carrying out according to principle of the present utility model all should be understood to fall into protection domain of the present utility model.
Claims (9)
1. the blade displacement measurement mechanism of a pneumatic equipment blades made experiment table is characterized in that, comprising:
Be installed near the high sensor installation seat (2) of two framves of tested blade (5);
Be installed in respectively two stay wire displacement sensors (3) on two sensor installation seats (2), and the end of the sensor backguy rope (4) of described two stay wire displacement sensors (3) respectively be installed in experiment table on the measured point of tested blade (5) link to each other.
2. the blade displacement measurement mechanism of pneumatic equipment blades made experiment table according to claim 1 is characterized in that, the described measured point of described tested blade (5) is provided with abutment ring (6), and its end with each described sensor backguy rope (4) links to each other.
3. the blade displacement measurement mechanism of pneumatic equipment blades made experiment table according to claim 1 and 2 is characterized in that, described sensor installation seat (2) is high by fixed support (1) frame.
4. the blade displacement measurement mechanism of pneumatic equipment blades made experiment table according to claim 3 is characterized in that, described fixed support (1) is two columns, and each described sensor installation seat (2) is installed in the top of each described column.
5. the blade displacement measurement mechanism of pneumatic equipment blades made experiment table according to claim 3, it is characterized in that, described fixed support (1) is comprised of a vertical support and the horizontal strut that is fixedly arranged on the vertical support top, and each described sensor installation seat (2) is installed in the two ends of described horizontal strut.
6. the blade displacement measurement mechanism of pneumatic equipment blades made experiment table according to claim 4, it is characterized in that, described fixed support (1) is comprised of a vertical support and the horizontal strut that is fixedly arranged on the vertical support top, and each described sensor installation seat (2) is installed in the two ends of described horizontal strut.
7. the blade displacement measuring system of a pneumatic equipment blades made experiment table is characterized in that, comprising:
A plurality of such as each described blade displacement measurement mechanism among the claim 1-6;
Gather measured point displacement information in described a plurality of blade displacement measurement mechanism and carry out the data collector that data are processed.
8. the blade displacement measuring system of pneumatic equipment blades made experiment table according to claim 7 is characterized in that, described a plurality of blade displacement measurement mechanisms link to each other from the different measured points of tested blade (5) respectively.
9. according to claim 7 or the blade displacement measuring system of 8 described pneumatic equipment blades made experiment tablees, it is characterized in that described data collector comprises:
Gather the data acquisition unit of measured point displacement information in a plurality of blade displacement measurement mechanisms;
The host computer that is connected and carries out the data processing with data acquisition unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375471 CN202814375U (en) | 2012-07-30 | 2012-07-30 | Blade displacement measuring device and blade displacement measuring system for wind turbine blade experiment bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375471 CN202814375U (en) | 2012-07-30 | 2012-07-30 | Blade displacement measuring device and blade displacement measuring system for wind turbine blade experiment bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202814375U true CN202814375U (en) | 2013-03-20 |
Family
ID=47873236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220375471 Expired - Fee Related CN202814375U (en) | 2012-07-30 | 2012-07-30 | Blade displacement measuring device and blade displacement measuring system for wind turbine blade experiment bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202814375U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236892A (en) * | 2014-10-08 | 2014-12-24 | 东方电气集团东方汽轮机有限公司 | Method for testing wind turbine blade static force loading vertical displacement and deformation |
| CN105571503A (en) * | 2015-11-27 | 2016-05-11 | 山东理工大学 | Wind-power blade vertical static loading two-way displacement deformation precise measuring method and device |
| CN106370125A (en) * | 2016-10-27 | 2017-02-01 | 沈阳航空航天大学 | Blade continuous deformation measuring device based on residual stress release |
| CN109307494A (en) * | 2018-09-19 | 2019-02-05 | 陕西飞机工业（集团）有限公司 | A kind of aircraft handling pedal horizontal displacement measurement tool and its measurement method |
| CN110907159A (en) * | 2019-12-06 | 2020-03-24 | 上海中认尚科新能源技术有限公司 | Wind power blade test space positioning measurement method |
-
2012
- 2012-07-30 CN CN 201220375471 patent/CN202814375U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236892A (en) * | 2014-10-08 | 2014-12-24 | 东方电气集团东方汽轮机有限公司 | Method for testing wind turbine blade static force loading vertical displacement and deformation |
| CN105571503A (en) * | 2015-11-27 | 2016-05-11 | 山东理工大学 | Wind-power blade vertical static loading two-way displacement deformation precise measuring method and device |
| CN105571503B (en) * | 2015-11-27 | 2018-02-02 | 山东理工大学 | A kind of wind electricity blade Vertical Static loading bidirectional displacement deformation accurately measures method and device |
| CN106370125A (en) * | 2016-10-27 | 2017-02-01 | 沈阳航空航天大学 | Blade continuous deformation measuring device based on residual stress release |
| CN109307494A (en) * | 2018-09-19 | 2019-02-05 | 陕西飞机工业（集团）有限公司 | A kind of aircraft handling pedal horizontal displacement measurement tool and its measurement method |
| CN110907159A (en) * | 2019-12-06 | 2020-03-24 | 上海中认尚科新能源技术有限公司 | Wind power blade test space positioning measurement method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202814375U (en) | Blade displacement measuring device and blade displacement measuring system for wind turbine blade experiment bench | |
| CN102169040B (en) | Device for measuring quality center of mass by composite range sensor in cross-measuring range | |
| CN106500900A (en) | A kind of Cable force measuring device and its measuring method | |
| CN105043284A (en) | System and method for large-scale radar antenna deformation real time measurement | |
| CN102589492B (en) | A kind of large-scale curved flexible detection device | |
| CN103645490A (en) | Method for monitoring attitude of continuous operating reference station (CORS) of global navigation satellite system (GNSS) | |
| CN104406777A (en) | Three-dimensional space variable angle loading device | |
| CN202734733U (en) | Tool for measuring bending radius of umbrella-shaped cable | |
| CN202109865U (en) | Top center and diameter measuring instrument for pipes with large journal and large diameter | |
| CN109799053B (en) | Power transmission equipment dynamic characteristic analysis method | |
| CN103411789A (en) | Simple loading and testing device for dynamic characteristics of actuator | |
| CN105466328A (en) | High precision tree DBH measurer | |
| CN202649069U (en) | High-precision lever type weighing lysimeter system based on spring balance | |
| CN102252750A (en) | Method and instrument for measuring spatial distribution regularity of photosynthetically active radiation under tree crown | |
| CN114216604A (en) | Wind power measuring device and method for ground wire of power transmission line | |
| CN203502015U (en) | Special measuring scale for horizontal displacement by collimation line method | |
| CN202648613U (en) | Curve direct-display intelligent roller shape measuring instrument | |
| CN103868466A (en) | Comprehensive measuring device for deformation of parallel double-joint coordinate measuring machine rotating arm | |
| CN103542818A (en) | Wallboard part detecting device | |
| CN206493337U (en) | A kind of test device of industrial robot repetitive positioning accuracy | |
| CN204594430U (en) | Plate heat exchanger plate waveform scanister | |
| CN104833449A (en) | Device for measuring static contact force of current collector of electric locomotive | |
| CN200986441Y (en) | Dual-grating displacement sensor | |
| CN209763941U (en) | Piping lane structure displacement guyed measuring device | |
| CN203117222U (en) | Wind power plant ultrasonic wind speed detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200730 |