CN102589858A - Blade static loading bench and blade static test system - Google Patents
Blade static loading bench and blade static test system Download PDFInfo
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- CN102589858A CN102589858A CN2011100023353A CN201110002335A CN102589858A CN 102589858 A CN102589858 A CN 102589858A CN 2011100023353 A CN2011100023353 A CN 2011100023353A CN 201110002335 A CN201110002335 A CN 201110002335A CN 102589858 A CN102589858 A CN 102589858A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0016—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of aircraft wings or blades
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a blade static loading bench and a blade static test system. The blade static loading bench comprises a bench body which fixes a blade, a loading device and a displacement driving mechanism. The loading device comprises a revolution driving mechanism, a seat and a loading rack. The loading rack is installed on the seat through a revolution mechanism. A loading driving mechanism is installed on the loading rack. The bench body is provided with a track. The seat is in sliding fit with the track. When the blade is bended under force, a loading drift angle is formed between a blade normal line of a load point and a direction of loading acting force or the loading drift angle is oversized, the loading device moves along the track relative to the bench body, the loading rack rotates relative to the seat, thus in the condition of not changing a load point position, a direction of the loading acting force is adjusted, the direction of the loading acting force and the blade normal line of the load point maintain consistent or the loading drift angle between the direction and the blade normal line is maintained in a predetermined scope, and in this way difference between the loading acting force and load point blade normal line direction actual load can be reduced.
Description
Technical field
The present invention relates to a kind of experimental technique of wind power plant, the static loading bench of the blade that particularly a kind of blade that is used for wind power plant loads also relates to a kind of blade envelope test system that comprises the static loading bench of this blade.
Background technology
Wind power plant comprises blade and generator, and blade is used for absorbing wind energy, and wind energy is converted into mechanical energy and drives generator operation, makes generator output electric energy.Blade is a strip structure, and its butt links to each other with wheel hub, and is most advanced and sophisticated protruding.In the wind power plant operational process, blade rotates under wind action, drives the rotation of generator input shaft through wheel hub, makes generator output electric energy.The efficient of the good and bad directly decision energy conversion of blade runnability, whether the decision wind power plant can run well; Therefore, blade is the critical component of wind power plant always, and many countries have also issued the technical standard relevant with blade.
Because blade is stressed very complicated, and its load can not accurately confirm, therefore, after producing, need the correlation technique parameter of blade be detected, to confirm the actual bearer ability of blade; Simultaneously, on the basis that obtains the correlation technique parameter, can confirm the model of blade, and then for confirming that the series of blades specification provides accurate foundation.
In the correlation technique parameter of blade, static strength is the critical data that characterizes the blade technology state.Current, the blade static strength detected mainly load through the precalculated position of load maintainer to blade, obtain the corresponding strength supplemental characteristic according to loading the deflection deformation that acting force and blade produce.Chinese patent document CN201397251Y just discloses a kind of testing multifunctional vane testing table, and this testing table has structures such as stage body and test pit; When blade is detected,, and make the blade center section unsettled earlier with vanes fixed; Then, again with crane or other boom hoistings, from the top or the side blade is loaded, accomplish static test of pressure, obtain blade static strength parameter.
Please refer to Fig. 1, this figure is the loading principle synoptic diagram of blade static test of pressure in the prior art.Among the figure, blade 100 butts are fixed, and from the blade root to the point of blade, are provided with five load(ing) points 1,2,3,4 and 5, form five and load directed force F 1, F2, F3, F4 and F5.In loading procedure, shown in dotted line among the figure, blade 100 can produce crooked, and each load(ing) point position can produce corresponding change in displacement, and from the butt to the tip, the displacement of each load(ing) point increases gradually.Like the 1st load(ing) point place, after blade 100 bendings, the direction of directed force F 1 can with the blade normal (with through the vertical horizontal line of this horizontal tangent) of this position between have one and load the drift angle; Like this, on the blade normal direction, the acting force of the actual bearer at load(ing) point 1 place of blade 100 will be different with directed force F 1, and therefore, directed force F 1 can not characterize the actual loading of load(ing) point 1; Equally, the acting force of other each load(ing) points and the actual loading of corresponding load(ing) point are also inequality, can not characterize the actual loading of corresponding load(ing) point.In addition, because blade 100 bending curvatures are different, also be difficult to obtain the actual loading of each load(ing) point accurately through converting; Will there be error between the static strength parameter of the blade 100 that obtains according to each acting force like this and the blade 100 actual static strength parameters, and then can't confirms the state of the art of blade 100 exactly.
Therefore, the accuracy that how to improve the static strength parameter that the blade static test of pressure obtains is the technical barrier that those skilled in the art need solve.
Summary of the invention
First purpose of the present invention is, provides a kind of blade static loading bench, with the difference between the actual loading that reduces to load acting force and corresponding load(ing) point blade normal direction.
On the basis that the static loading bench of above-mentioned blade is provided, second purpose of the present invention is, a kind of blade envelope test system that comprises the static loading bench of above-mentioned blade is provided, to obtain blade static strength parameter more accurately.
The static loading bench of blade provided by the invention comprises stage body, and said stage body one end has the fixed mechanism that cooperates with blade root, makes the tip other end extension longitudinally of blade, also comprises charger and displacement drive mechanism; Said charger comprises rotary motion mechanism, load driver mechanism, base and loading frame, and said loading frame is installed on the said base through slew gear, and said rotary motion mechanism drives loading frame with respect to turning round with base; Said load driver mechanism is installed on the loading frame; Have the track that extend respectively to the stage body two ends respectively at two ends on the said stage body, said base and said track are slidingly matched; Said displacement drive mechanism drives charger and moves along said track.
Optional, said track straight line extends, and its bearing of trend is parallel with the length direction of stage body.
Optional; Said stage body also comprises down " T " positioning track groove and vertical positioning track face; Said base comprises vertical stressed roller and the stressed roller of level; The rolling surface of said vertical stressed roller matches with the said inner top surface of " T " positioning track groove, and the rolling surface of the stressed roller of said level matches with said horizontal location face.
Optional, comprise two said displacement drive mechanisms that lay respectively at said charger both sides; Said displacement drive mechanism comprises two reels and two reverse mechanisms that are installed on the stage body, and said reverse mechanism comprises corresponding vertical fixed pulley and horizontal fixed pulley; One end of a wire rope links to each other with the front portion of charger, and the other end is walked around vertical fixed pulley and horizontal fixed pulley of a reverse mechanism in proper order, again on a reel; One end of another wire rope links to each other with the rear portion of charger, and the other end is walked around vertical fixed pulley and horizontal fixed pulley of another reverse mechanism in proper order, again on another reel.
Optional, wire rope is around on the contrary on two reels of said displacement drive mechanism, and the rotation of two reels overlaps, and by a drive power source.
Optional, comprise a plurality of chargers and with the corresponding displacement drive of charger mechanism; A plurality of chargers are arranged along the longitudinal direction of stage body.
Blade envelope test provided by the invention system comprises controller, force transducer and above-mentioned any blade bracket loading test platform; Said force transducer is used to obtain the loading acting force of charger to blade; Said controller is used to control displacement driving mechanism and rotary motion mechanism.
Optional, the force side of said load driver mechanism links to each other with the load(ing) point of blade through wire rope, and said force transducer is installed between wire rope and the force side, or is installed between the load(ing) point of wire rope and blade.
Optional, also comprising the angle detection device that is installed in the blade load(ing) point, said angle detection device is used to detect the blade normal of blade load(ing) point and the loading drift angle between the wire rope bearing of trend; Loading drift angle control displacement driving mechanism and rotary motion mechanism that said controller obtains according to angle detection device.
Optional, the power source of said charger is a servomotor, and the power source of said displacement drive mechanism is a stepper motor, and the power source of said rotary motion mechanism is a synchronous servo motor.
In the static loading bench of blade provided by the invention, except that comprising stage body, also comprise charger and with the corresponding displacement drive of charger mechanism; Said charger comprises rotary motion mechanism, load driver mechanism, base and loading frame.Can load predetermined force to the predetermined load(ing) point of blade through load driver mechanism; ,, can move with respect to stage body along track when generation loading drift angle or loading drift angle are excessive between the force direction that the blade normal of load(ing) point and load driver mechanism load owing to stressed and crooked at blade through displacement drive mechanism driving charger; Simultaneously; Through rotary motion mechanism loading frame is rotated with respect to base; Make load driver mechanism rotate predetermined angular with respect to stage body; And then under the situation that does not change blade load(ing) point position, adjustment load driver mechanism loads the direction of acting force, the blade normal of loading direction and this load(ing) point of this acting force is consistent or the loading drift angle between the two is remained within the predetermined scope; So just can be with the difference between the actual loading of the blade normal direction of the loading acting force that reduces load driver mechanism and corresponding load(ing) point.
In further technical scheme, said track straight line is extended, and its bearing of trend is parallel with the length direction of stage body; The horizontal shift of control loaded device and the anglec of rotation are adjusted the direction that load driver mechanism loads acting force more easily so more easily.
In further technical scheme; Said stage body also comprises down " T " positioning track groove and vertical positioning track face; Said base comprises stressed roller of level and vertical stressed roller; The rolling surface of said vertical stressed roller matches with the said inner top surface of " T " positioning track groove, and the stressed roller of said level matches with said vertical positioning track face.Vertical stressed roller can the balance charger upsetting moment, the acting force of the horizontal direction of bearing that the stressed roller of level can the balance charger, the resistance to overturning of the two motion that can keep charger of combining.
In further technical scheme,, can guarantee the job stability and the reliability of displacement drive mechanism through the cooperation of reel and wire rope; Simultaneously, displacement drive mechanism links to each other with the front and rear of charger through wire rope simultaneously, can guarantee the stability that charger moves.
In further technical scheme, the rotation of two reels of said displacement drive mechanism overlaps, and by a drive power source.So just can when guaranteeing displacement drive mechanism job stability, improve the functional reliability of displacement drive mechanism.
In further technical scheme, the static loading bench of blade comprise a plurality of chargers and with the corresponding displacement drive of charger mechanism; A plurality of chargers are arranged on the longitudinal direction of stage body.So not only can be simultaneously a plurality of load(ing) points of blade be loaded, the static loading bench of blade can be loaded the blade of polytype, multiple length, increase the adaptability of the static loading bench of blade.
On the basis that above-mentioned blade bracket loading test platform is provided, comprise that the blade envelope test system that provides of above-mentioned blade bracket loading test platform also has the corresponding techniques effect.
In further technical scheme, the force side of said load driver mechanism links to each other with the load(ing) point of blade through wire rope, and said force transducer is installed between wire rope and the force side, or is installed between the load(ing) point of wire rope and blade.Through loading tensile blade is loaded acting force, can improve the accuracy that acting force detects; Directly detect the loading acting force of wire rope transfers with force transducer, can improve the accuracy of measurement.
In further technical scheme, also comprise the angle detection device that is installed in the blade load(ing) point, said angle detection device is used to detect the blade normal of blade load(ing) point and the loading drift angle between the wire rope bearing of trend; Loading drift angle control displacement driving mechanism and rotary motion mechanism that said controller obtains according to angle detection device.Loading drift angle through the angle detection device feedback; Controller is controlled displacement driving mechanism and rotary motion mechanism in real time; And then real-time control loaded device is with respect to the displacement of stage body and the angle of revolution between loading support body and the base; The direction and the corresponding load(ing) point blade normal direction that load acting force are remained in the littler scope; Minimizing further loads the difference between the actual loading on acting force and the corresponding load(ing) point blade normal direction, improves the accuracy that blade envelope test system detects data.
The power source of said charger is a servomotor, and the power source of said displacement drive mechanism is a stepper motor, and the power source of said rotary motion mechanism is a synchronous servo motor.The control of blade envelope test system can be made things convenient for so on the one hand, the accuracy of blade envelope test system control can be improved on the other hand.
Description of drawings
Fig. 1 is in the prior art, the loading principle synoptic diagram of blade static test of pressure;
Fig. 2 is the structural representation of the static loading bench of the blade that provides of the embodiment of the invention;
Fig. 3 is in the static loading bench of the blade that provides of the embodiment of the invention, the vertical view of servo-actuated loading unit;
Fig. 4 is that the A of Fig. 3 is to view;
Fig. 5 is that the B of Fig. 3 is to view;
Fig. 6 is the loading principle synoptic diagram of the static loading bench of the blade that provides of the embodiment of the invention;
Fig. 7 is in the static loading bench of blade provided by the invention, the following three-dimensional structure diagram of looking of charger;
Fig. 8 is the control block diagram of blade envelope test provided by the invention system.
Embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection scope of the present invention.
Please refer to Fig. 2, Fig. 2 is the structural representation of the static loading bench of the blade that provides of the embodiment of the invention; For convenience, the blade 100 that also illustrates among the figure.
The static loading bench of the blade that the embodiment of the invention provides comprises stage body 200 and 5 loading units; Wherein, 5 loading units comprise two servo-actuated loading units 300 and three root loading units 400; Each loading unit all has load driver mechanism, and the force side of load driver mechanism links to each other with 5 load(ing) points 1,2,3,4,5 of blade 100 through wire rope 101; Suitable anchor clamps are set between the load(ing) point of wire rope 101 and blade 100 usually, with the reliability that guarantees to be connected between wire rope 101 and blade 100 load(ing) points, and the surface that prevents damaged blade 100.Stage body 200 1 ends are provided with fixed mechanism, and the butt of blade 100 is fixed on the stage body 200 through fixed mechanism, and extend to the other end of stage body 200 along the longitudinal direction at blade 100 tips.
Please refer to Fig. 3,4 and 5, Fig. 3 is in the static loading bench of the blade that provides of the embodiment of the invention, the vertical view of servo-actuated loading unit; Fig. 4 is that the A of Fig. 3 is to view; Fig. 5 is that the B of Fig. 3 is to view.
Servo-actuated loading unit 300 comprises charger 310 and two displacement drive mechanisms 320.With servo-actuated loading unit 300 corresponding stage body 200 upper surface portion track 220 is set; In this example, track 220 straight lines extend, and its bearing of trend is parallel with the length direction of stage body 200.
The principle of work of above-mentioned displacement drive mechanism 320 is: when two reels, 321 rotations of the displacement drive mechanism 320 in drive power source left side; Because wire rope 323,324 is around on the contrary on two reels 321, and then can drives chargers 310 through two wire rope 323,324 and move to the left; At this moment, two reels 321 of right side displacement driving mechanism 320 rotate with corresponding direction, and two wire rope 325,326 unclamp.Same principle when reel 321 rotations of drive power source right side displacement driving mechanism, also can drive charger 310 and move right.
According to foregoing description, wire rope 323 canoes are not limited to aforesaid way, and with vertically fixed pulley 3221 positions are different, wire rope 323 can twine with different directions according to horizontal fixed pulley 3222.As when laterally the position of fixed pulley 3222 is lower than the position of vertical fixed pulley 3221, wire rope 323 1 ends can be walked around vertical fixed pulley 3221 earlier from the top, extend vertically downward then, laterally walk around horizontal fixed pulley 3222 earlier, again around to reel 321; Equally, other wire rope can carry out corresponding winding according to actual conditions.
Please refer to Fig. 6, Fig. 6 is the loading principle synoptic diagram of the static loading bench of the blade that provides of the embodiment of the invention.
5 loading units load 5 load(ing) points of blade through its load driver mechanism respectively; In loading procedure, blade 100 each several parts can produce corresponding deformation, and are bigger near the distortion at load(ing) point at tip 1 and load(ing) point 2 places, and the blade normal (shown in dotted line among the figure) that makes this load(ing) point place is deflection gradually.At this moment, shown in servo-actuated loading unit 300 straight arrows among Fig. 6, can move right with respect to stage body 200 along track 220 through the charger 310 that displacement drive mechanism 320 drives servo-actuated loading unit 300; Simultaneously; Shown in rotation arrow in the servo-actuated loading unit 300 among Fig. 6; Make loading frame 312 with respect to base 311 rotations through rotary motion mechanism; Make load driver mechanism 314 with respect to stage body 200 rotation predetermined angulars; And then under the situation that does not change load(ing) point 1 and load(ing) point 2 positions, the load driver mechanism 314 of adjustment charger 310 loads the direction of acting forces, the blade normal of the direction that loads acting force and corresponding load(ing) point is consistent or the loading drift angle between the two is remained within the predetermined scope; So just can be to reduce in each servo-actuated loading unit 300 difference between the actual loading on load driver mechanism loading acting force and the blade 100 corresponding load(ing) point blade normal directions.
For load(ing) point 3,4 and 5, because this position deflection of blade 100 is less, each blade normal deflection is less, can keep the direction of fixing loading unit 400 loading acting forces constant.
Please combine Fig. 5 and with reference to figure 7, Fig. 7 is in the static loading bench of blade provided by the invention, looks three-dimensional structure diagram under the charger.Base 311 comprises vertical stressed roller 3112 and the stressed roller 3113 of level, and vertical stressed roller 3112 is rotatable on mounting seat 311 bodies, and its rotation is parallel with surface level; The stressed roller of level 3113 is rotatable on mounting seat 311 bodies, and its rotation is vertical with surface level.Corresponding with the stressed roller of vertical stressed roller 3112 and level 3113, stage body 200 upper surfaces also form down " T " positioning track groove 201 and the positioning track groove that comprises vertical positioning track face 202, and vertically positioning track face 202 is towards charger 310 rear portions.The rolling surface of vertical stressed roller 3112 with fall the inner top surface of " T " positioning track groove 201 and match, the rolling surface of the stressed roller 3113 of level matches with vertical positioning track face 201.Like this; Vertical stressed roller 3112 can balance charger 310 upsetting moment; The stressed roller 3113 of level can balance charger 310 the acting force of the horizontal direction of bearing, the resistance to overturning of the two motion that can keep charger 310 of combining.In this example, loading frame 312 is a truss-frame structure, in order to improve the stability of loading frame 312, can also balancing weight be set at the rear portion of blade 100 dorsad.
According to foregoing description; Be appreciated that; Track 210 is not limited to the linear pattern track; Also can be the track of other shapes,, make charger 310 produce relative displacements with respect to stage body 200 and just can realize the purpose of inventing at longitudinal direction as long as its two ends extend respectively to stage body 200 two ends respectively.In addition, displacement drive mechanism 320 also is not limited to said structure, also can be for other can drive charger 310 along the mechanism that planned orbit slides, such as: can be screw mandrel guide rail mechanism, pinion and rack or the like.
On the basis that above-mentioned blade bracket loading test platform is provided, blade envelope test provided by the invention system comprises controller, force transducer and above-mentioned blade bracket loading test platform.
Please refer to Fig. 8, this figure is the control block diagram of blade envelope test provided by the invention system.The output terminal of controller 710 links to each other with rotary motion mechanism 315 with displacement drive mechanism 320; Be used for controlling respectively the power source of displacement driving mechanism 320 and the power source of rotary motion mechanism 315; With position through displacement drive mechanism 320 each charger 310 of control; And through in the rotary motion mechanism 315 control servo-actuated loading units 300, the application of force direction of load driver mechanism 314; Certainly, can also be through the power source of load driver mechanism 314 in the controller 710 control servo-actuated loading units 300, with the acting force of control loaded driving mechanism 314 generations; Certainly, also can control the power source of the load driver mechanism in the root loading unit simultaneously through controller 710.
Force transducer is used to obtain the acting force that each charger loads blade 100 each load(ing) point, and the related data of obtaining is passed to the proper process device.Utilize above-mentioned blade bracket loading test platform, can obtain the load of bearing of each load(ing) point blade normal direction of blade 100 more accurately, and then reliable basis is provided for adjusting blade static strength correlation parameter.The installation site of force transducer can be provided with according to actual needs; Preferred mode is to be installed between the force side of wire rope 101 and load driver mechanism 314; Or be installed between wire rope 101 and the corresponding blade load(ing) point, to obtain the acting force of the loading of load driver mechanism through direct measuring mode; Also can be installed in the relevant position of shown in Figure 5 and fixed pulley 3121,3122, with through detecting the loading acting force of the stressed indirect measurement load driver of fixed pulley 3121,3122 mechanism 314.
In order to guarantee each load(ing) point blade normal and to load the consistance between the force direction, improve the control automatism; Blade envelope test system also comprises two angle detection devices 720 on the load(ing) point 1 that is installed in blade 100 and the load(ing) point 2.Angle detection device 720 links to each other with the input end of controller 710, is used to detect the blade normal of load(ing) point 1 and load(ing) point 2 and the loading drift angle between corresponding wire rope 101 bearing of trends; Controller 710 is controlled displacement driving mechanism 320 and rotary motion mechanism 315 in real time according to the loading drift angle that angle detection device 720 obtains; The blade normal of load(ing) point 1 and load(ing) point 2 is consistent with the bearing of trend of corresponding wire rope 101 as far as possible; Or reduce the loading drift angle between the two; Reduce to load the difference of corresponding load(ing) point between the actual loading on the blade normal direction of acting force and blade, improve the accuracy that blade envelope test system detects data.
In order to improve the accuracy of control, in the embodiment of the invention, the power source of load driver mechanism 314 is a servomotor, and the power source of displacement drive mechanism 320 is a stepper motor, and the power source of rotary motion mechanism 315 is a synchronous servo motor; The control of blade envelope test system can be made things convenient for so on the one hand, the accuracy of blade envelope test system control can be improved on the other hand.Certainly, each driving mechanism power source can be selected for use according to actual needs, such as being Hydraulic Elements.
The above only is a preferred implementation of the present invention, should be pointed out that for those skilled in the art; Under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, such as, load driver mechanism 314 is not limited to through pulling force blade 100 loaded; Also can load blade 100 through thrust or pressure, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. the static loading bench of blade comprises stage body, and said stage body one end has the fixed mechanism that cooperates with blade root, makes the tip other end extension longitudinally of blade, it is characterized in that, also comprises charger and displacement drive mechanism; Said charger comprises rotary motion mechanism, load driver mechanism, base and loading frame, and said loading frame is installed on the said base through slew gear, and said rotary motion mechanism drives loading frame with respect to turning round with base; Said load driver mechanism is installed on the loading frame; Have the track that extend respectively to the stage body two ends respectively at two ends on the said stage body, said base and said track are slidingly matched; Said displacement drive mechanism drives charger and moves along said track.
2. the static loading bench of blade according to claim 1 is characterized in that said track straight line extends, and its bearing of trend is parallel with the length direction of stage body.
3. the static loading bench of blade according to claim 2; It is characterized in that; Said stage body also comprises down " T " positioning track groove and vertical positioning track face; Said base comprises vertical stressed roller and the stressed roller of level, and the rolling surface of said vertical stressed roller matches with the said inner top surface of " T " positioning track groove, and the rolling surface of the stressed roller of said level matches with said horizontal location face.
4. the static loading bench of blade according to claim 2 is characterized in that, comprises two said displacement drive mechanisms that lay respectively at said charger both sides; Said displacement drive mechanism comprises two reels and two reverse mechanisms that are installed on the stage body, and said reverse mechanism comprises corresponding vertical fixed pulley and horizontal fixed pulley; One end of a wire rope links to each other with the front portion of charger, and the other end is walked around vertical fixed pulley and horizontal fixed pulley of a reverse mechanism in proper order, again on a reel; One end of another wire rope links to each other with the rear portion of charger, and the other end is walked around vertical fixed pulley and horizontal fixed pulley of another reverse mechanism in proper order, again on another reel.
5. the static loading bench of blade according to claim 4 is characterized in that, wire rope is around on the contrary on two reels of said displacement drive mechanism, and the rotation of two reels overlaps, and by a drive power source.
6. according to the static loading bench of each described blade of claim 1-5, it is characterized in that, comprise a plurality of chargers and with the corresponding displacement drive of charger mechanism; A plurality of chargers are arranged along the longitudinal direction of stage body.
7. a blade envelope test system is characterized in that, comprises each described blade bracket loading test platform of controller, force transducer and claim 1-6; Said force transducer is used to obtain the loading acting force of charger to blade; Said controller is used to control displacement driving mechanism and rotary motion mechanism.
8. blade envelope test according to claim 7 system; It is characterized in that; The force side of said load driver mechanism links to each other with the load(ing) point of blade through wire rope, and said force transducer is installed between wire rope and the force side, or is installed between the load(ing) point of wire rope and blade.
9. blade envelope test according to claim 8 system; It is characterized in that; Also comprise the angle detection device that is installed in the blade load(ing) point, said angle detection device is used to detect the blade normal of blade load(ing) point and the loading drift angle between the wire rope bearing of trend; Loading drift angle control displacement driving mechanism and rotary motion mechanism that said controller obtains according to angle detection device.
10. according to each described blade envelope test system of claim 7-9; It is characterized in that; The power source of said charger is a servomotor, and the power source of said displacement drive mechanism is a stepper motor, and the power source of said rotary motion mechanism is a synchronous servo motor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100023353A CN102589858A (en) | 2011-01-06 | 2011-01-06 | Blade static loading bench and blade static test system |
| PCT/CN2011/073743 WO2012092734A1 (en) | 2011-01-06 | 2011-05-06 | Blade static loading platform and blade static testing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100023353A CN102589858A (en) | 2011-01-06 | 2011-01-06 | Blade static loading bench and blade static test system |
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| CN102589858A true CN102589858A (en) | 2012-07-18 |
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| CN2011100023353A Pending CN102589858A (en) | 2011-01-06 | 2011-01-06 | Blade static loading bench and blade static test system |
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| CN103776623B (en) * | 2014-01-10 | 2016-04-06 | 中国科学院等离子体物理研究所 | A kind of multidirectional charger supporting test for tokamak coil |
| CN104089770A (en) * | 2014-07-28 | 2014-10-08 | 中国船舶重工集团公司第七0四研究所 | Asymmetric double-arm centrifugal loading device |
| CN105466672A (en) * | 2014-09-12 | 2016-04-06 | 中航惠腾风电设备股份有限公司 | Fatigue test method of wind wheel blade and application of method in full-size fatigue test |
| CN105716836A (en) * | 2014-12-03 | 2016-06-29 | 中国直升机设计研究所 | Anti-icing/deicing main blade equal bending moment loading mechanism |
| CN108152130A (en) * | 2017-11-20 | 2018-06-12 | 上海艾港风电科技发展有限公司 | Three side method wind electricity blade static test methods |
| CN109374403A (en) * | 2018-12-25 | 2019-02-22 | 江苏金风科技有限公司 | The test platform of blade and the test method of blade |
| CN109374403B (en) * | 2018-12-25 | 2021-01-22 | 江苏金风科技有限公司 | Blade testing platform and blade testing method |
| CN112763176A (en) * | 2020-12-25 | 2021-05-07 | 中国航天空气动力技术研究院 | High-precision ground calibration system and method for wing load |
| CN112763176B (en) * | 2020-12-25 | 2023-04-18 | 中国航天空气动力技术研究院 | High-precision ground calibration system and method for wing load |
| CN114659775A (en) * | 2022-03-31 | 2022-06-24 | 哈尔滨工业大学 | Static strength test method and stretching device for rotary structural member of aircraft engine |
| CN114659775B (en) * | 2022-03-31 | 2024-05-10 | 哈尔滨工业大学 | Static strength test method and stretching device for rotary structural member of aero-engine |
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