CN206208509U - Fatigue test horizontal drive device - Google Patents
Fatigue test horizontal drive device Download PDFInfo
- Publication number
- CN206208509U CN206208509U CN201621260512.2U CN201621260512U CN206208509U CN 206208509 U CN206208509 U CN 206208509U CN 201621260512 U CN201621260512 U CN 201621260512U CN 206208509 U CN206208509 U CN 206208509U
- Authority
- CN
- China
- Prior art keywords
- fatigue test
- drive device
- horizontal drive
- blade
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model is related to wind-powered electricity generation and experiment field, more particularly to fatigue test horizontal drive device.The fatigue test horizontal drive device includes：Clamp structure, motor, reductor, swing arm and mass；The middle part of clamp structure sets folder blade position, the upper surface fixed installation motor of clamp structure, and motor is furnished with reductor, the output shaft of reductor straight up, the one end of output shaft connection level to swing arm, other end installation quality block from level to swing arm.The utility model can realize horizontal addload, eliminate influence of the blade deadweight to fatigue test target load, simplify the process of blade fatigue test target load calculating, avoid the damage that the deadweight of process of the test Leaf is caused to trailing edge, and excitation set need not resist blade deadweight, the usage cycles of excitation set are extended, experimentation cost is saved.
Description
Technical field
The utility model is related to wind-powered electricity generation and experiment field, more particularly to fatigue test horizontal drive device, especially suitable
In fan blade of wind generating set.
Background technology
Wind wheel blade is the critical component of wind power generating set, blade within design fatigue life trouble free service to closing weight
Will.Testing fatigue experiment is important test in blade design, sizing, production process, and blade can be simulated 20 years by testing
Service life, test blade being capable of trouble free service.
At present, blade fatigue test exciting type is broadly divided into hydraulic method and resonance method.Resonance method relies on shock electric machine band
Making circle swing on the direction of ground, the centrifugal force of generation drives blade to be moved in circles fortune in above-below direction to movable pendulum arm
It is dynamic.Test objective load can be by formula Ftarget=Fdesign×γnf×γsf×γefCalculate.
When blade is vibrated on direction is tested perpendicular to ground, due to the influence of blade deadweight, each section of blade
Average not be 0, equivalent load conversion need to be carried out according to Goodman formula,
Goodman formula：
Under experimental design load, each section, stress ratio, the damage in each section is
After gravity influence is considered, the Bending moment distribution along each section of blade can be tried to achieve.The average in each section is not 0.According to each section
Strain under unit bending moment, can be in the hope of each section.By equivalent damage principle：Release,Obtain the S in each sectionk,M2Afterwards according to list
Position strain can obtain the target load in each section after consideration gravity influence.
Obtain the rear according to the target load that each section after consideration gravity influences is obtained by unit strain of each section.
The excessively complexity of the method for target load is calculated according to Goodman principles, the introducing for crossing multiple index causes calculating
The inaccuracy of result, while the larger compression born in effect of weight lower blade trailing edge, is unfavorable for blade fatigue test
Checking, and vertical exciting, to offset blade deadweight, needing excitation system to provide larger centrifugal force makes blade vibration, shortens
The usage cycles of equipment.
Utility model content
(1) technical problem to be solved
The purpose of this utility model is to provide a kind of fan blade of wind generating set fatigue test horizontal drive device, with
Solve the problems, such as the damage that the deadweight of process of the test Leaf is caused to trailing edge.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of fan blade of wind generating set fatigue test water
Flat exciting bank, it includes：Clamp structure, motor, reductor, swing arm and mass；The middle part of the clamp structure is set
Folder blade position, the upper surface fixed installation motor of the clamp structure, the motor is furnished with reductor, the reductor
Straight up, the described one end of output shaft connection level to swing arm, the level installs described to output shaft to the other end of swing arm
Mass.
In certain embodiments, preferably, the motor is fixed on the clamp structure by mounting bracket.
In certain embodiments, preferably, the mounting bracket is secured by bolts in the clamp structure.
In certain embodiments, preferably, the motor is secured by bolts in the mounting bracket.
In certain embodiments, preferably, the clamp structure includes：Upper fixture and lower clamp, the upper fixture and institute
State lower clamp to set and be fixedly connected relatively up and down, and there is the folder blade position therebetween.
In certain embodiments, preferably, it is fixedly connected by multiple screw rods between the upper fixture and the lower clamp.
In certain embodiments, preferably, it is respectively provided with type on the inside of the inner side of the upper fixture and the lower clamp
Structure.
In certain embodiments, preferably, the upper fixture and it is arranged between the structure with type on the inside of it fixed
Connection.
In certain embodiments, preferably, the lower clamp and it is arranged between the structure with type on the inside of it fixed
Connection.
In certain embodiments, preferably, the upper fixture and be arranged between the structure with type on the inside of it weld
Or bonding.
In certain embodiments, preferably, the lower clamp and be arranged between the structure with type on the inside of it weld
Or bonding.
In certain embodiments, preferably, it is described to be spliced by multiple wooden units with type structure.
(3) beneficial effect
The fan blade of wind generating set fatigue test horizontal drive device that the utility model is provided, motor is by subtracting
Fast machine exports torque, and is amplified by reductor, and output end of reducer is straight up, the rotation of output end, realizes level
Loading, eliminates influence of the blade deadweight to fatigue test target load, simplifies the calculating of blade fatigue test target load
Process, it is to avoid the damage that the deadweight of process of the test Leaf is caused to trailing edge, and excitation set need not resist blade deadweight, prolong
The usage cycles of excitation set have been grown, experimentation cost has been saved.
Brief description of the drawings
Fig. 1 is fan blade of wind generating set fatigue test horizontal drive device knot in the utility model one embodiment
Structure schematic diagram.
Accompanying drawing remarks：
It is wooden with type under 1；
2 times steel clamps；
It is wooden with type on 3；
Steel clamps on 4；
5 connecting screw rods long；
6 motor mounting racks；
7 threephase asynchronouses；
8 reductors；
9 swing arms；
10 masses.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is used to illustrate the utility model, but is not limited to scope of the present utility model.
In description of the present utility model, it is to be understood that term " " center ", " length ", " width ", " thickness ",
" on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", the orientation of instruction such as " outward " or
Position relationship is, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplify description,
Rather than indicate imply signified device or element must have specific orientation, with specific azimuth configuration and operation, because
This is it is not intended that to limitation of the present utility model.
Because the method for calculating target load at present is excessively complicated, the introducing for crossing multiple index causes the inaccurate of result of calculation
Property, and the larger compression born in effect of weight lower blade trailing edge, it is unfavorable for the checking of blade fatigue test.Therefore this reality
With a kind of fan blade of wind generating set fatigue test horizontal drive device of new offer.
The method is described in detail followed by basic engineering and extension design, alternative design：
A kind of fan blade of wind generating set fatigue test horizontal drive device, mainly by clamp structure, motor, subtract
Fast machine, swing arm and mass composition.Clamp structure is used to clamp blade, and motor and reductor provide power, and swing arm is used as to pass
It is dynamic.The middle part of clamp structure sets folder blade position, is sandwiched in blade surface.The upper surface fixed installation motor of clamp structure, electricity
Motivation is furnished with reductor, and straight up, output shaft connects the one end of level to swing arm to the output shaft of reductor, and level is to swing arm
Other end installation quality block, realizes horizontal addload.The moment of torsion of motor is amplified by reductor, and the output shaft of reductor will amplify
Rotating speed output afterwards, the rotation is the rotation on horizontal plane, and shadow of the blade deadweight to fatigue test target load is eliminated with this
Ring, simplify the process of blade fatigue test target load calculating, it is to avoid the deadweight of process of the test Leaf is caused to trailing edge
Damage, and excitation set need not resist blade deadweight, extend the usage cycles of excitation set, save experimentation cost.
Shape as folder blade position can be designed according to the structure of blade correspondence, as long as adhering to the purpose of stable holding i.e.
Can.Swing arm is connected by key with speed reducer output shaft, and mass is installed on the front of motor of swing arm.
On the basis of above-mentioned basic engineering, in order to motor is fixed on clamp structure, usually using mounting bracket
It is fixed.I.e. mounting bracket is first fixed on clamp structure, and motor is fixed in mounting bracket again.
As shown in figure 1, mounting bracket is made up of multiple vertical beams and the crossbeam (or horizontal platform) propped up in vertical beam upper end.Motor is pacified
Side loaded on mounting bracket, reductor is installed on the side of motor.
In certain embodiments, mounting bracket (being in certain embodiments the longeron of mounting bracket) is secured by bolts in
Clamp structure.In certain embodiments, motor is secured by bolts in mounting bracket.
It should be noted that in other examples, motor existing various can also be fixedly connected using other
Mode is installed on clamp structure, such as welded.
Based on above-mentioned basic engineering or extension design, specific to clamp structure, it is mainly made up of upper fixture and lower clamp.
Upper fixture sets and is fixedly connected relatively up and down with lower clamp, and there is folder blade position therebetween, and blade is sandwiched in upper fixture with
Between fixture.In certain embodiments, in order to improve upper fixture, the chucking power of lower clamp, upper fixture, lower clamp can be used
Steel.
Due between upper fixture, lower clamp in certain position, therefore, by multiple spiral shells between upper fixture and lower clamp
Bar (such as 4 connecting screw rods long) is fixedly connected.It should be noted that in order to that installs more stablizes, it is proposed that connecting screw rod long
Connection position can be evenly distribution.
In certain embodiments, in order to preferably adapt to the structure of blade, the inner side of upper fixture and the inner side of lower clamp point
Do not set with type structure.Upper and lower two are placed blade between type structure.Can be in laminating blade with the concrete shape of type structure
In the case of outer surface, depending on the structure of blade.
On the other hand, in order to upper fixture, lower clamp coordinate with the stronger connection of type structure, upper fixture and it is arranged at it
Inner side is fixedly connected between type structure；Lower clamp and it is arranged at being fixedly connected between type structure on the inside of it.Upper fixture
And with after fixed between type structure, will not relatively move therebetween, lower clamp and also similar with type structure.
Various ways can be used as specific fixed structure, such as：
Mode one：Upper fixture and be arranged on the inside of it between type structure by steel disc weld；
Mode two：Lower clamp and be arranged on the inside of it between type structure by steel disc weld；
Mode three：Upper fixture and be arranged on the inside of it between type structure be bonded；
Mode four：Lower clamp and be arranged on the inside of it between type structure be bonded.
In a particular embodiment, mode one, mode two can be used in combination；Mode one and mode four can be combined and made
With；Mode two and mode three can be used in combination；Mode three and mode four can also be used in combination.Certainly, in other embodiment
In, mode can also be fixedly connected using others, such as：Bolt connection etc..
Preferably fitted with type and blade in order to more convenient, with type generally using wooden, be spliced by multiple wooden units.
The utility model can realize blade horizontal vibration on experiment direction by horizontal exciting device, so as to avoid leaf
The influence that piece is conducted oneself with dignity to target load, directly can be according to formula Ftarget=Fdesign×γnf×γsf×γefThe mesh being calculated
Mark load carries out fatigue test, while avoiding the fatigue damage that the deadweight of fatigue test process Leaf is caused to trailing edge.
As shown in figure 1, first will under it is wooden with type 1 (be arranged on the inside of lower clamp with type) with lower steel clamps (under i.e.
Fixture) it is bonded as one, will be upper wooden with type 3 (be arranged on the inside of upper fixture with type) and upper steel clamps 4 (i.e. upper fixture)
It is bonded and is loaded for lower steel clamps 2 (i.e. lower clamp) and upper steel clamps 4 integrally, afterwards are positioned over into blade using crane in addition
Cross-sections surfaces, enable wooden to show as being brought into close contact with type and blade.Connecting screw rod long 5 (i.e. bolt) is utilized afterwards by upper and lower steel
Fixture processed is fixed on blade loading sectional position.
Then motor mounting rack 6 (i.e. mounting bracket) is positioned over the top of upper steel clamps 4, and is screwed,
Threephase asynchronous 7 (i.e. motor) is fixed on the side of support 6, the connection motor of reductor 8 by connecting screw rod long afterwards
7, swing arm 9 (i.e. level is to swing arm) is installed on the position of output axle of reductor 9 by key, and mass is screwed in swing arm end
End position.
After installation, start threephase asynchronous 7, drive the level of swing arm 9 to turn by the output shaft rotation of reductor 8
It is dynamic, the rotational frequency of swing arm 9, when the rotational frequency of swing arm 9 is consistent with Natural Frequency of Blade, Liang Zhefa are adjusted by external frequency converter
Raw resonance is tired so as to meet blade by adjusting the adjustment of weight test load of mass 10 so as to drive blade horizontal vibration
The requirement of labor test objective load.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of fatigue test horizontal drive device, it is characterised in that including：Clamp structure, motor, reductor, swing arm and
Mass；The middle part of the clamp structure sets folder blade position, and the upper surface fixed installation motor of the clamp structure is described
Motor is furnished with reductor, and straight up, the output shaft connects the one end of level to swing arm, institute to the output shaft of the reductor
State level and the mass is installed to the other end of swing arm.
2. fatigue test horizontal drive device as claimed in claim 1, it is characterised in that the motor passes through mounting bracket
It is fixed on the clamp structure.
3. fatigue test horizontal drive device as claimed in claim 2, it is characterised in that the mounting bracket is solid by bolt
Due to the clamp structure.
4. fatigue test horizontal drive device as claimed in claim 2, it is characterised in that the motor is bolted
In the mounting bracket.
5. the fatigue test horizontal drive device as described in claim any one of 1-4, it is characterised in that the clamp structure bag
Include：Upper fixture and lower clamp, the upper fixture and the lower clamp set and are fixedly connected relatively up and down, and there is institute therebetween
State folder blade position.
6. fatigue test horizontal drive device as claimed in claim 5, it is characterised in that the upper fixture and the lower clamp
Between be fixedly connected by multiple screw rods.
7. fatigue test horizontal drive device as claimed in claim 5, it is characterised in that the inner side of the upper fixture and described
It is respectively provided with the inside of lower clamp with type structure.
8. fatigue test horizontal drive device as claimed in claim 7, it is characterised in that the upper fixture and set in the inner
It is fixedly connected between the structure with type of side；And/or, the lower clamp and it is arranged between the structure with type on the inside of it
It is fixedly connected.
9. fatigue test horizontal drive device as claimed in claim 8, it is characterised in that the upper fixture and set in the inner
Steel disc welding or bonding between the structure with type of side；And/or, the lower clamp and be arranged at it is described with type knot on the inside of it
Steel disc welding or bonding between structure.
10. fatigue test horizontal drive device as claimed in claim 9, it is characterised in that it is described with type structure by multiple wood
Block is spliced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260512.2U CN206208509U (en) | 2016-11-21 | 2016-11-21 | Fatigue test horizontal drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260512.2U CN206208509U (en) | 2016-11-21 | 2016-11-21 | Fatigue test horizontal drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206208509U true CN206208509U (en) | 2017-05-31 |
Family
ID=58749908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621260512.2U Active CN206208509U (en) | 2016-11-21 | 2016-11-21 | Fatigue test horizontal drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206208509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870133A (en) * | 2017-09-25 | 2018-04-03 | 上海艾港风电科技发展有限公司 | Blade fatigue strength test method and equipment |
-
2016
- 2016-11-21 CN CN201621260512.2U patent/CN206208509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870133A (en) * | 2017-09-25 | 2018-04-03 | 上海艾港风电科技发展有限公司 | Blade fatigue strength test method and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104215443B (en) | One kind has led rocking arm joint torque loading device | |
| CN202471379U (en) | Fatigue test device for shimmy direction of large-scale wind wheel blade | |
| CN103743556A (en) | Testing apparatus for steam turbine blade with shroud ring and boss lashing wire structures | |
| CN106680119A (en) | Electric reciprocating type fatigue loading testing apparatus suitable for wind power blade | |
| CN107121276A (en) | A kind of high-power wind mill blade fatigue test loading device | |
| CN206208509U (en) | Fatigue test horizontal drive device | |
| CN106853580A (en) | A kind of manipulator and the method that fan blade installation is carried out using manipulator | |
| CN206974431U (en) | A kind of mining survey support meanss | |
| CN213336734U (en) | Fan blade torsional fatigue test device | |
| CN207468020U (en) | A kind of suspender for heliostat installation | |
| CN206569945U (en) | A kind of crane arm Adaptable System of flat-top tower crane | |
| CN202974567U (en) | Vertical dynamic balancing device for external fan of explosion-proof electric machine | |
| CN204594686U (en) | A kind of H type blade of vertical axis wind turbine static construction test unit | |
| CN105606391B (en) | Large fan tower frame strength experimental rig and test method | |
| CN115824606A (en) | Wind power blade double-shaft fatigue loading frequency adjusting device, method and system | |
| CN208223687U (en) | A kind of portable weight beam of physics teaching | |
| CN106894349A (en) | A kind of bridge of high-mechanic intensity | |
| CN204074290U (en) | A kind of ultra-large type centrifuge discretization combined type jib | |
| CN206569941U (en) | A kind of prestressing force crane arm tower crane | |
| CN201555798U (en) | Tester for testing adhesive static strength of wind turbine blade butt embedded part and glass fiber reinforced plastic | |
| CN202886082U (en) | Eccentric vibration exciter for fatigue test of large-size wind powder blade | |
| CN207986522U (en) | A kind of device for balancing mono beam crane in bridge type electric block weight | |
| CN208595387U (en) | A kind of adjustable telescopic device of road and bridge detection | |
| CN102042933B (en) | Test apparatus of static bond strength between embedded part of wind wheel blade root and glass fiber reinforced plastic | |
| CN204997641U (en) | A support rotates for maintenance of main equipment rotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |