CN105445012A - Test tool of wind driven generator and method for testing tested piece of wind driven generator - Google Patents
Test tool of wind driven generator and method for testing tested piece of wind driven generator Download PDFInfo
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- CN105445012A CN105445012A CN201510886195.9A CN201510886195A CN105445012A CN 105445012 A CN105445012 A CN 105445012A CN 201510886195 A CN201510886195 A CN 201510886195A CN 105445012 A CN105445012 A CN 105445012A
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- 238000005259 measurement Methods 0.000 claims description 25
- 238000002360 preparation method Methods 0.000 claims description 18
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- 238000010248 power generation Methods 0.000 claims description 9
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- 238000013016 damping Methods 0.000 abstract description 4
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Abstract
The invention provides a test tool of a wind driven generator and a method for testing a tested piece of the wind driven generator. The test tool comprises a plurality of supporting vibration reduction mechanisms, and each supporting vibration reduction mechanism comprises a support assembly; the vibration damping mechanism is detachably arranged on the support assembly; the transition plate is detachably arranged on the vibration damping mechanism; the transition plate is provided with a plurality of positioning holes which are respectively matched with the flange holes on the measured piece. By adopting the test tool and the method for testing the tested piece of the wind driven generator, the free support state of the tested piece can be effectively simulated, so that the free mode test of the tested piece is completed, and good data support is provided for the optimization design and the dynamic simulation technology of the wind driven generator.
Description
Technical field
The present invention relates to wind power generating set auxiliary test unit field, particularly relate to a kind of method of test fixture of aerogenerator and the measured piece of testing wind power generation machine.
Background technology
Along with popularizing of wind generating technology, need aerogenerator can adapt to comparatively complicated working environment.The complex structure of aerogenerator, mostly its vibration problem is due to multipart coupling, and is the precondition of complete-machine coupling vibration force theoretical analysis for the checking of Coupled Dynamics characteristic, therefore needs to set up model via dynamical response accurately.
The model simplification degree of current foundation is larger, in order to obtain dynamic characteristic information comparatively accurately, the mode to structure itself (i.e. inherent characteristic) is needed to test, with checking and amendment model, and then support the on-the-spot oscillation phenomenon analysis of causes of wind power generating set, and check the analog computation result that realistic duty is provided for the static strength of aerogenerator.
In the mould measurement of large-scale wind driven generator, need its subassembly of test after aerogenerator dismounting.Wherein, to the mould measurement of wind power generating set parts with Free Modal test for the best.Existing test fixture is only applicable to the Free Modal test analysis of small-scale structure, and does not also propose desirable solution to large scale structures such as the subassemblies of aerogenerator.
Summary of the invention
The object of the present invention is to provide a kind of method of test fixture of aerogenerator and the measured piece of testing wind power generation machine, the problem of Free Modal test can not be carried out with the subassembly solving aerogenerator.
For reaching above-mentioned purpose, the invention provides a kind of test fixture of aerogenerator, it comprises multiple support damper mechanism, supports damper mechanism and comprises: mounting assembly; Damper mechanism, damper mechanism is removably disposed on mounting assembly; Rebound, rebound is removably disposed on damper mechanism; Rebound is provided with multiple respectively with the pilot hole of the flange hole adaptation on measured piece.
Further, damper mechanism comprises air spring.
Further, air spring adopts binodal design, comprises vexed plate, air bag and down depression plate, and upper vexed plate and down depression plate and air bag form closed containing cavity, are with girdle ring in the middle part of air bag.
Further, between upper vexed plate and down depression plate, be provided with multiple limited post, multiple limited post is arranged on the periphery of air bag equably.
Further, the down depression plate of air spring is provided with multiple waist through hole, mounting assembly top is provided with multiple bolt hole corresponding with waist through hole respectively.
Further, rebound comprises base plate and liner plate fixed thereon, and liner plate is provided with pilot hole.
Further, the liner plate in multiple rebound is arc.
Further, the longitudinal cross-section of this liner plate and base plate are formed T-shaped, and the both sides of liner plate are provided with at least one group of support flap.
Further, mounting assembly comprises pedestal, or mounting assembly comprises base and pedestal disposed thereon.
Further, support damper mechanism and hold in the palm with also comprising, mounting assembly holds in the palm with being fixed on, and ground holder is provided with T-slot structure.
According to a further aspect in the invention, the present invention also provides a kind of method using the measured piece of above-mentioned test fixture testing wind power generation machine, method comprises: preparation process: be evenly arranged by multiple rebound respectively and be fixed on measured piece, to be hung onto by identical multiple damper mechanism respectively on identical multiple mounting assembly and to fix with mounting assembly; Integrating step: measured piece is hung onto on damper mechanism; Fixing step: measured piece and multiple damper mechanism are fixed, to carry out mould measurement.
Further, support damper mechanism and hold in the palm with also comprising, preparation process also comprises: held in the palm with being fixed to by multiple mounting assembly.
Further, method also comprises: the rigidity and the frequency that regulate multiple damper mechanism, and measured piece is adjusted to horizontal level, to carry out mould measurement.
Further, damper mechanism is provided with multiple waist through hole, mounting assembly top is provided with multiple bolt hole corresponding with waist through hole respectively, and preparation process also comprises: it aimed at bolt hole by adjustment waist through hole, and use bolt multiple damper mechanism and mounting assembly to be fixed.
Further, measured piece is the stator of aerogenerator, supporting the number of damper mechanism is four, and preparation process also comprises: be fixed on four damper mechanisms by four rebounds respectively, to be hung onto by four damper mechanisms respectively on four mounting assemblies and to fix with mounting assembly; Integrating step comprises: hung onto by stator on multiple support damper mechanism, wherein, makes the pilot hole on four rebounds corresponding with the flange hole on stator.
Further, measured piece is the rotor of aerogenerator, the number supporting damper mechanism is six, preparation process also comprises: pulled down by the web member of rotor and aerogenerator, respectively six rebounds are fixed on six damper mechanisms, respectively six damper mechanisms are hung onto on six mounting assemblies and to fix with mounting assembly; Integrating step also comprises: rotor is hung onto six and support on damper mechanism, wherein, make the pilot hole on rebound corresponding with epitrochanterian flange hole respectively; Fixing step also comprises: be connected with rotor by web member.
The method of the test fixture of the aerogenerator that the embodiment of the present invention provides and the measured piece of testing wind power generation machine, by measured piece being connected on multiple support damper mechanism, effectively can simulate the free support state of measured piece, and then complete the Free Modal of measured piece is tested, think that the optimal design of aerogenerator and dynamics simulation technology provide good Data support.
Accompanying drawing explanation
Fig. 1 is the structural representation of the test fixture of the aerogenerator of the embodiment of the present invention;
Fig. 2 is the structural representation of single support damper mechanism in Fig. 1;
Fig. 3 is the another kind of structural representation of single support damper mechanism in Fig. 1;
Fig. 4 is the process flow diagram of the method for the measured piece of the testing wind power generation machine of the embodiment of the present invention;
Fig. 5 is the working state schematic representation of the test fixture of the aerogenerator of the embodiment of the present invention.
Description of reference numerals:
10, mounting assembly; 11, base; 12, pedestal; 20, damper mechanism; 21, air spring; 22, upper vexed plate; 23, air bag; 24, down depression plate; 25, girdle ring; 26, limited post; 27, waist through hole; 30, rebound; 31, pilot hole; 32, base plate; 33, liner plate; 34, flap is supported; 40, hold in the palm; 50, measured piece.
Embodiment
Below in conjunction with accompanying drawing, the test fixture of the aerogenerator of the embodiment of the present invention and method of testing are described in detail.
Embodiment one
The structural representation of the test fixture of the aerogenerator of Fig. 1 embodiment of the present invention.This proving installation can be used for carrying out Free Modal test to the subassembly of aerogenerator, is particularly useful for carrying out Free Modal test to the large component such as stator or rotor of such as aerogenerator.Certainly, this proving installation can also be used for carrying out Free Modal test to the large scale structure in other application scenarioss.
As shown in Fig. 1 ~ Fig. 2, this test fixture comprises multiple support damper mechanism, each support damper mechanism includes mounting assembly 10, damper mechanism 20 and rebound 30, wherein, damper mechanism 20 is removably disposed on mounting assembly 10, rebound 30 is removably disposed on damper mechanism 20, and rebound 30 is provided with multiple respectively with the pilot hole 31 of the flange hole adaptation on measured piece.
Particularly, measured piece can be arranged on multiple damper mechanism 20 by being connected with multiple rebound 30, and damper mechanism 20 is connected on mounting assembly 10, and therefore, mounting assembly 10 is for supporting the gravity of whole support damper mechanism and measured piece.Because measured piece may be the large scale structure that gravity is larger, mounting assembly 10 needs to be fixedly installed on ground or specific worktable by servicing unit.The concrete connected mode of measured piece and rebound 30, can, for be connected with pilot hole 31 by the flange hole on measured piece by bolt, make measured piece and rebound 30 be fastenedly connected.Meanwhile, measured piece can also disassemble from rebound 30 by this bolted mode quickly and easily.Pilot hole 31 is preferably counter sink, can not have influence on the assembling of measured piece with the bolt being used in connection.Certainly, in other embodiments, measured piece and rebound 30 also can adopt other dismountable connected modes, such as, be removably connected with rebound 30 by measured piece by hanging the connected modes such as nail, draw-in groove, hasp.
After measured piece is connected multiple support damper mechanism, due to the existence of damper mechanism 20, measured piece is equivalent to freely be supported on multiple support damper mechanism.Hammered into shape by power or the device such as vibrator excitation measured piece, just can carry out Free Modal test to measured piece.Wherein, measured piece comprises stator or the rotor of aerogenerator, stators and rotators, as the vitals of aerogenerator, carries out Free Modal test analysis by this test fixture above-mentioned to it, can provide good Data support for the design optimization of aerogenerator.
Below the critical piece of the test fixture of the aerogenerator of embodiments of the invention and dependency structure are described in detail.
1, the design of damper mechanism 20
In the present embodiment, damper mechanism 20 comprises air spring 21, and it has comparatively ideal nonlinear elasticity characteristic, and pace of change is relatively slow, dynamic force change is little, and has angle automatic compensation function, and support damper mechanism can be made more freely to support measured piece.Such as, the leveling system that can be configured by air spring 21 regulates the size pouring air pressure, supported that rigidity or frequency adjustment are to predetermined target value (this predetermined target value can be determined by data such as the concrete structures of measured piece), to simulate the free support state of measured piece, and then improve the accuracy of its Free Modal test.Moreover more for convenience, even if there is the effect of external force, air spring 21 also stably can support measured piece in the connection of air spring 21 and other web members.
Particularly, air spring 21 adopts binodal to design, and it comprises vexed plate 22, air bag 23 and down depression plate 24.Go up vexed plate 22 and down depression plate 24 and air bag 23 and form closed containing cavity, air spring 21 is arranged on mounting assembly 10 by down depression plate 24, supports rebound 30 disposed thereon and measured piece by upper vexed plate 22.Air bag 23 center section is with girdle ring 25, for limiting its radial dilatation, and prevents phase mutual friction between upper and lower two joints.Girdle ring 25 is preferably made up of rigid material, such as steel girdle ring.
Multiple limited post 26 can be provided with between upper vexed plate 22 and down depression plate 24.Multiple limited post 26 is longitudinally arranged between vexed plate 22 and down depression plate 24, and is evenly distributed in the periphery of air bag 23, for supporting upper vexed plate 22 and the measured piece be connected thereon, and limits the transverse shifting of air bag 23.Can conveniently control measured piece by the length adjusting limited post 26 and be in horizontality, and then conveniently mould measurement be carried out to it.
More preferably, the down depression plate 24 of air spring 21 is provided with multiple waist through hole 27, mounting assembly 10 top is provided with multiple bolt hole corresponding with waist through hole 27 respectively.Waist through hole 27 and bolt hole are cooperatively set, the relative position of air spring 21 and mounting assembly 10 can be regulated by the position of adjusting bolt in waist through hole 27, and then facilitate the location and installation of whole vibration reduction support mechanism.
Particularly, by bolt through the waist through hole of down depression plate 24 and the bolt hole at mounting assembly 10 top, air spring 21 can be fixedly connected on mounting assembly 10.Bolt can move in waist through hole 27, and then when installing air spring 21, by the position of adjusting bolt in waist through hole 27, the position of air spring 21 relative to mounting assembly 10 can be finely tuned, mounting assembly 10 pairs of air springs 21 are provided and more suitably supports.
2, the design of rebound 30
Rebound 30 can comprise base plate 32 and liner plate 33 fixed thereon, fixes to facilitate itself and damper mechanism 20.Liner plate 33 is provided with aforesaid for the pilot hole 31 fixing with measured piece.
In the present embodiment, rebound 30 is removably connected to by base plate 32 and supports on damper mechanism, can carry out mould measurement to facilitate this test fixture by changing different rebounds 30 to different parts.Certainly, when not needing dismounting rebound 30, also by liner plate 33, rebound 30 can be fixedly connected on support damper mechanism.
Rebound 30 is connected with measured piece by the liner plate 33 on base plate 32, and its concrete shape and measured piece, to coordinating, are connected to more easily to make measured piece and support on damper mechanism.
Such as, when measured piece is rotor or the stator of aerogenerator, in order to make rebound 30 close with the matching form of rotor, liner plate 33 shape of rebound 30 is preferably arc (as shown in Figure 2), can be connected with rebound 30 quickly and easily to make rotor.
Again such as, interfere to prevent the reinforcement on rebound 30 and stator from being formed, rebound 30 is designed to the longitudinal cross-section of liner plate 33 and base plate 32 are formed T-shaped (as shown in Figure 3), pilot hole 31 can be arranged on the end face of liner plate 33, by bolt or hang nail and stator can be connected on rebound 30.On this basis, be provided with many groups in the both sides of liner plate 33 and support flap 34, support on damper mechanism with being connected to of making that stator can be stable.
And the face adjacent with measured piece at rebound 30 is preferably chamfer design, to avoid causing damage when assembling measured piece to it.
3, the design of mounting assembly 10
More preferably, mounting assembly 10 comprises pedestal 12, or mounting assembly 10 comprises base 11 and pedestal 12 disposed thereon, and air spring 21 can be connected on pedestal 12.By mounting assembly 10 being set to base 11 and the design of pedestal 12 stacking pattern, the height of mounting assembly 10 can being regulated, make it can provide effective support for the measured piece of different MW class wind turbine.Certainly, in other embodiments, for different measured pieces, mounting assembly 10 can also comprise multiple base 11 and pedestal 12, makes mounting assembly 10 have suitable height.
In order to easily support damper mechanism is fixedly installed on ground or worktable, can by mounting assembly 10 being held in the palm with being fixedly installed on the mode on 40, make support damper mechanism provide effective support for measured piece.Particularly, T-slot structure can be set in ground holder 40, connecting hole be set in the bottom (or bottom of the base 11 of mounting assembly 10) of mounting assembly 10, by the mode such as bolt, pin, mounting assembly 10 be held in the palm on 40 with being fixedly connected on.
In addition, between other each parts of this test fixture, (such as mounting assembly 10 and ground hold in the palm between 40, between base 11 with pedestal 12) mode that all can be matched by bolt and waist through hole is connected, correspondingly to regulate the relative position between each parts, measured piece can more effectively be supported.
When using this test fixture to carry out mould measurement to measured piece, owing to supporting vibration-proof structure, there is enough support functions, its quantity too much can cause the increase of testing cost, the supporting role of impact to measured piece that its quantity crosses that I haven't seen you for ages, therefore, support the number of damper mechanism and be preferably four or six, with symmetrically for measured piece provides effective support.Or, according to the concrete structure of measured piece also can determine to support vibration-proof structure quantity number.
When measured piece is stator or the rotor of aerogenerator, if its reference diameter less (being such as arranged on the inner stator of outer rotor inside), distributed four-point supporting form can be adopted; If its reference diameter comparatively large (being such as arranged on the outer rotor of inner stator outside), can adopt distributed 6 supporting forms.When stator or rotor being assembled on support damper mechanism, pilot hole 31 on four or six rebounds 30 supporting damper mechanism can be regulated, it is made to form reference circle, and the position of stator or epitrochanterian flange hole is positioned on this reference circle, and then quickly and easily stator or rotor are assembled on support damper mechanism.
The test fixture of the aerogenerator of embodiments of the invention, utilizes mounting assembly, damper mechanism and rebound to achieve free support to measured piece, can carry out Free Modal test to the stator of aerogenerator or rotor; And this test fixture cost is lower, structure is simple, easy to operate, and for convenience detach with assembling.
Embodiment two
Fig. 4 is the process flow diagram of the method for the measured piece of the testing wind power generation machine of embodiments of the invention, the method carries out mould measurement for using the test fixture of aerogenerator described in the invention described above embodiment one to measured piece, is particularly useful for carrying out Free Modal test to the stator in aerogenerator or rotor.
As shown in Figure 4 and Figure 5, at preparation process S410, respectively multiple rebound 30 be evenly arranged and be fixed on measured piece 50, respectively identical multiple damper mechanism 20 to be hung onto on identical multiple mounting assembly 10 and to be fixedly connected with mounting assembly 10.
Carrying out in the preliminary work of mould measurement to the stator of aerogenerator or rotor, first, prepare multiple with stator or the rebound 30 that closes of the matching form of rotor, they are fixed on equably on stator or rotor, wherein, pilot hole 31 on multiple rebound 30 should be corresponding with tested stator or epitrochanterian flange hole, to be connected with stator or rotor by rebound 30 quickly and easily.Secondly, multiple damper mechanism 20 is hung onto on corresponding mounting assembly 10, and be fixed with mounting assembly 10 and be connected, to form multiple support damper mechanism, for supporting stator to be measured or rotor.
At integrating step S420, measured piece 50 is hung onto on damper mechanism 20.
When stator or rotor being hung onto on damper mechanism 20, due to stator or rotor being connected with rebound 30, the correct position on damper mechanism 20 should be adjusted to, making stator or rotor and rebound 30 obtain effective support of damper mechanism 20.
At fixing step S430, measured piece 50 and multiple damper mechanism 20 are fixed, to carry out mould measurement.
When carrying out mould measurement to stator or rotor, needing to utilize the devices such as power hammer or vibrator to encourage it, therefore needing stator or rotor to be fixedly connected on multiple damper mechanism 20.By being connected with damper mechanism 20 by rebound 30, or after being directly fixed on multiple damper mechanism 20 by stator or rotor, stator or rotor just can freely be supported on multiple damper mechanism 20.As shown in Figure 5, stator or rotor are freely supported on multiple support damper mechanism, now can carry out mould measurement to it.
More preferably, support damper mechanism and hold in the palm 40 with also comprising, preparation process S410 also comprises: held in the palm on 40 with being fixed to by multiple mounting assembly 10.
Because the subassembly of aerogenerator belongs to large scale structure more, multiple mounting assembly 10 needs to support heavier measured piece 50, mounting assembly 10 needs fixing to prevent from occurring that in test process the phenomenons such as slip appear in mounting assembly 10, causes measured piece 50 to occur damaging.The mould measurement such as carried out stator or rotor needs to carry out on ground or special worktable, and be connected with multiple mounting assembly 10 by ground holder 40 (hold in the palm on 40 and can be provided with the fixed sturctures such as T-slot), multiple mounting assembly 10 can be fixed, and then realize the effective support to stator or rotor.
More preferably, the method also comprises: the rigidity and the frequency that regulate multiple damper mechanism 20, and measured piece 50 is adjusted to horizontal level, to carry out mould measurement.
In the present embodiment, damper mechanism 20 is equipped with regulating system, for regulating its rigidity and frequency, while making it provide a supporting role measured piece 50, can provide damping effect effectively for measured piece 50.Measured piece 50 can be adjusted to horizontal level by the rigidity and frequency that regulate damper mechanism 20, now, measured piece 50 is equivalent to be freely supported by damper mechanism 20, comparatively accurately can carry out Free Modal test to it.
Such as, when damper mechanism 20 is air springs 21, can regulates by its leveling system the size pouring air pressure in air spring 21, regulate rigidity and the frequency of air spring 21, to realize it to the support of measured piece 50 and damping effect.
More preferably, damper mechanism 20 is provided with multiple waist through hole 27, mounting assembly 10 top is provided with multiple bolt hole corresponding with waist through hole 27 respectively, above-mentioned preparation process S410 also comprises: it aimed at bolt hole by adjustment waist through hole 27, and use bolt to be fixedly connected with mounting assembly 10 by multiple damper mechanism 20.
When performing preparation process S410, bolt can be used to pass be arranged on the waist through hole 27 bottom damper mechanism 20 and corresponding bolt hole, damper mechanism 20 is connected with mounting assembly 10, now can tighten this bolt, but when performing fixing step S430, by adjustment waist through hole 27 and the relative position of bolt, adjust the position of damper mechanism relative to mounting assembly 10, make mounting assembly 10 provide more effective supporting role for damper mechanism 20 and measured piece 50.
Particularly, when damper mechanism 20 is air spring 21, its down depression plate 24 can be provided with multiple waist through hole 27, by adjusting the relative position of bolt and waist through hole 27, and the leveling system of adjustment air spring 21 matches, can realize further the free support of measured piece 50, be adjusted to horizontal level quickly and easily.
More preferably, measured piece 50 is stators of aerogenerator, and the number supporting damper mechanism is four.Preparation process S410 stator being carried out to the method for mould measurement comprises: be fixed on four damper mechanisms by four rebounds 30 respectively, to be hung onto by four damper mechanisms 20 respectively on four mounting assemblies 10 and to fix with mounting assembly 10.Integrating step S420 comprises: hung onto by stator on multiple support damper mechanism, wherein, makes the pilot hole 31 on four rebounds 30 corresponding with the flange hole on stator.Stator mentioned here refers to the inner stator being arranged on outer rotor inside, and its reference diameter is less, should adopt distributed four-point supporting form.In like manner, measured piece 50 can also be the internal rotor being arranged on external stator inside.
For the stator of aerogenerator, four support damper mechanism and are enough to realize the supporting role to stator.Stator is carried out in the process of mould measurement, when performing preparation process S410, successively mounting assembly 10, damper mechanism 20 and rebound 30 (this rebound 30 with it stator profile to coordinating) can be connected, wherein the concrete connected mode of each parts and regulative mode and the aforesaid regulative mode to parts such as mounting assembly 10, damper mechanism 20, rebounds 30 similar, do not repeat here.When performing integrating step S420, stator is connected to the step on damper mechanism 20, need corresponding with the flange hole on stator for the pilot hole 31 on rebound 30, to accelerate the connection of stator and rebound 30, after stator is adjusted to free support state, just can carry out mould measurement to it.
More preferably, measured piece 50 is rotors of aerogenerator, and the number supporting damper mechanism is six.Preparation process S410 stator being carried out to the method for mould measurement also comprises: pulled down by the web member of rotor and aerogenerator, respectively six rebounds 30 are fixed on six damper mechanisms 20, and respectively six damper mechanisms 20 are hung onto on six mounting assemblies 10.Integrating step S420 also comprises: rotor is hung onto six and support on damper mechanism, wherein, make the pilot hole 31 on rebound 30 corresponding with epitrochanterian flange hole respectively.Fixing step S430 also comprises: be connected with rotor by web member.Rotor mentioned here refers to the outer rotor being arranged on inner stator outside, and its reference diameter is comparatively large, should adopt distributed 6 supporting forms.In like manner, measured piece 50 can also be the external stator being arranged on internal rotor outside.
For the rotor of aerogenerator, need the rebound 30 supporting damper mechanism and carry out support rotor with six and match with rotor shapes.Because rotor is connected on aerogenerator by specific web member, so when carrying out mould measurement to rotor, need the web member of rotor and aerogenerator to be connected on rotor to carry out mould measurement simultaneously, think that the structure optimization of aerogenerator provides more reliable Data support.Particularly, this web member can be epitrochanterian seam, epitrochanterian seam can be pulled down when performing preparation process S410, tiles six and supports around damper mechanism, and seam be connected on rotor when performing fixing step S430.Can see the above-mentioned regulative mode to parts such as mounting assembly 10, damper mechanism 20, rebounds 30 to the connected mode of miscellaneous part and regulative mode.
The method of the measured piece of the testing wind power generation machine of the embodiment of the present invention, the free support state of measured piece is simulated by supporting vibration-proof structure, and adopt the hoisting matched with aerogenerator general assembly through simplifying, when using lower cost, can effectively to the measured piece of aerogenerator, especially rotor and stator carry out mould measurement.
On this basis, the method by the rigidity of adjustment damper mechanism and frequency, can realize more accurately to the mould measurement of measured piece.
In addition, supported quantity and the structure of damper mechanism and rebound by adjustment, make the method be applicable to carry out mould measurement to the different parts such as rotor and stator, effectively increase the applicability of the method.Such as, the quantity supporting damper mechanism is adjusted by distributed four-point supporting form or distributed 6 supporting forms, and the attach structure supporting damper mechanism is adjusted by the form that pedestal and base match, make the method go for the wind power generating set of different MW class, Free Modal test is carried out to dissimilar measured piece.
It may be noted that, according to the needs implemented, all parts/the step described in the application more multi-part/step can be split as, also the part operation of two or more components/steps or components/steps new components/steps can be combined into, to realize object of the present invention.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (16)
1. a test fixture for aerogenerator, is characterized in that, described test fixture comprises multiple support damper mechanism, and described support damper mechanism comprises:
Mounting assembly (10);
Damper mechanism (20), described damper mechanism (20) is removably disposed on described mounting assembly (10);
Rebound (30), described rebound (30) is removably disposed on described damper mechanism (20);
Described rebound (30) is provided with multiple respectively with the pilot hole (31) of the flange hole adaptation on measured piece (50).
2. test fixture according to claim 1, is characterized in that, described damper mechanism (20) comprises air spring (21).
3. test fixture according to claim 2, it is characterized in that, described air spring (21) adopts binodal design, comprise vexed plate (22), air bag (23) and down depression plate (24), described vexed plate (22) and down depression plate (24) and air bag (23) form closed containing cavity, and described air bag (23) middle part is with girdle ring (25).
4. test fixture according to claim 3, it is characterized in that, described, be provided with multiple limited post (26) between vexed plate (22) and down depression plate (24), described multiple limited post (26) is arranged on the periphery of described air bag (23) equably.
5. the test fixture according to claim 3 or 4, it is characterized in that, the down depression plate (24) of described air spring (21) is provided with multiple waist through hole (27), and described mounting assembly (10) top is provided with multiple bolt hole corresponding with described waist through hole (27) respectively.
6. the test fixture according to any one of Claims 1 to 4, it is characterized in that, described rebound (30) comprises base plate (32) and liner plate fixed thereon (33), described liner plate (33) is provided with described pilot hole (31).
7. test fixture according to claim 6, is characterized in that, the liner plate (33) in described multiple rebound (30) is arc.
8. test fixture according to claim 6, it is characterized in that, longitudinal cross-section and the described base plate (32) of described liner plate (33) are formed T-shaped, and the both sides of described liner plate (33) are provided with at least one group of support flap (34).
9. the test fixture according to any one of Claims 1 to 4, is characterized in that, described mounting assembly (10) comprises pedestal (12), or
Described mounting assembly (10) comprises base (11) and pedestal disposed thereon (12).
10. the test fixture according to any one of Claims 1 to 4, it is characterized in that, described support damper mechanism holds in the palm (40) with also comprising, described mounting assembly (10) is fixed on and holds in the palm on (40) describedly, holds in the palm on (40) describedly and is provided with T-slot structure.
The method of the measured piece of 11. 1 kinds of use test fixture testing wind power generation machines as claimed in claim 1, it is characterized in that, described method comprises:
Preparation process: be evenly arranged by multiple rebound (30) respectively and be fixed on measured piece (50), hangs onto identical multiple described mounting assembly (10) upper and fixing with described mounting assembly (10) respectively by identical multiple described damper mechanism (20);
Integrating step: described measured piece (50) is hung onto on described damper mechanism (20);
Fixing step: described measured piece (50) and described multiple damper mechanism (20) are fixed, to carry out mould measurement.
12. methods according to claim 11, is characterized in that, described support damper mechanism holds in the palm (40) with also comprising, and described preparation process also comprises: described multiple mounting assembly (10) held in the palm with being fixed on (40).
13. methods according to claim 12, is characterized in that, described method also comprises:
Regulate rigidity and the frequency of described multiple damper mechanism (20), and described measured piece (50) is adjusted to horizontal level, to carry out mould measurement.
14. methods according to claim 13, is characterized in that, described damper mechanism is provided with multiple waist through hole, and described mounting assembly (10) top is provided with multiple bolt hole corresponding with described waist through hole respectively,
Described preparation process also comprises: it aimed at described bolt hole by adjusting described waist through hole, and uses bolt multiple described damper mechanism (20) and described mounting assembly (10) to be fixed.
15. methods according to any one of claim 11 ~ 14, it is characterized in that, described measured piece (50) is the stator of aerogenerator, and the number of described support damper mechanism is four,
Described preparation process also comprises: be fixed on four described damper mechanisms (20) by four rebounds (30) respectively, respectively described four described damper mechanisms (20) is hung onto four described mounting assemblies (10) upper and fixing with described mounting assembly (10);
Described integrating step also comprises: hung onto by described stator on described multiple support damper mechanism, wherein, makes the pilot hole (31) on described four rebounds (30) corresponding with the flange hole on described stator.
16. methods according to any one of claim 11 ~ 14, it is characterized in that, described measured piece (50) is the rotor of aerogenerator, and the number of described support damper mechanism is six,
Described preparation process also comprises: pulled down by the web member of described rotor and aerogenerator, respectively six rebounds (30) are fixed on six described damper mechanisms (20), respectively described six damper mechanisms (20) are hung onto six described mounting assemblies (10) upper and fixing with described mounting assembly (10);
Described integrating step also comprises: described rotor is hung onto described six and support on damper mechanism, wherein, make the pilot hole (31) on described rebound (30) corresponding with described epitrochanterian flange hole respectively;
Described fixing step also comprises: be connected with described rotor by described web member.
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