CN201747854U - Hydraulic elastic support for gearboxes of large wind turbines - Google Patents
Hydraulic elastic support for gearboxes of large wind turbines Download PDFInfo
- Publication number
- CN201747854U CN201747854U CN2010201957262U CN201020195726U CN201747854U CN 201747854 U CN201747854 U CN 201747854U CN 2010201957262 U CN2010201957262 U CN 2010201957262U CN 201020195726 U CN201020195726 U CN 201020195726U CN 201747854 U CN201747854 U CN 201747854U
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- 239000007788 liquid Substances 0.000 claims abstract description 65
- 229920001971 elastomer Polymers 0.000 claims abstract description 46
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 8
- 238000011161 development Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Wind Motors (AREA)
Abstract
一种大型风力发电机组的齿轮箱液压弹性支撑，包括：橡胶主簧，其数量为四个，每个橡胶主簧的内部均具有液室，分别具有第一液室和第二液室的两个橡胶主簧沿竖直方向位于同一侧，分别具有第三液室和第四液室的两个橡胶主簧沿竖直方向位于另一侧；液压管路，其中一支液压管路连通所述第一液室与所述第四液室，另一支液压管路连通所述第二液室与所述第三液室；以及减震元件保持架，连接同侧布置的橡胶主簧，并用于保持同侧橡胶主簧之间的相对位置；所述液压弹性支撑具有结构相对简单、重量轻、成本低，并且可以在一定频段内显著提高齿轮箱工作稳定性的优点。
A hydraulically elastic support for a gearbox of a large-scale wind power generating set, comprising: four main rubber springs, each rubber main spring has a liquid chamber inside, and two chambers respectively having a first liquid chamber and a second liquid chamber Two main rubber springs are located on the same side in the vertical direction, and two main rubber springs with the third liquid chamber and the fourth liquid chamber are located on the other side in the vertical direction; The first liquid chamber and the fourth liquid chamber, another hydraulic pipeline communicates with the second liquid chamber and the third liquid chamber; and a shock absorbing element holder, connected to the rubber main spring arranged on the same side, And it is used to maintain the relative position between the rubber main springs on the same side; the hydraulic elastic support has the advantages of relatively simple structure, light weight, low cost, and can significantly improve the working stability of the gearbox within a certain frequency band.
Description
Technical field
The gear-box hydroelastic system that the utility model relates to a kind of Large-scale Wind Turbines supports.
Background technique
At occurring in nature, wind is a kind of renewable, pollution-free and reproducible clean energy resource that reserves are huge.China's wind resource is abundant, but development reserves surpass 1,000,000,000 KW.China has become the main pusher of Asia wind-powered electricity generation industry development at present, and its total installation of generating capacity occupies the 2nd in the world, and wherein 09 year total installation of generating capacity is 13000MW, leaps to the whole world first.From now on, the development speed of wind generating technology and industry will obviously be accelerated both at home and abroad.
Elastic support is one of Large-scale Wind Turbines important components, by the working environment that elastic support can well be improved each transmission part is installed, prolongs the working life of blower fan.Usually used elastic support mainly is that rubber elasticity supports.The designer is by suitably selecting the geomery of vibration-proof rubber, can make the stiffness coefficient of its 3 directions (vertical, horizontal, vertical) reach desirable numerical value, by between rubber molecule and the molecule and the interior frictional attenuation effect that produces of the interaction between rubber molecule and the bulking agent, exclude the vibration of gear-box effectively.The interior frictional ratio metal spring of vulcanized rubber is big more than 1000 times, the amplitude in the time of can reducing resonance effectively, and the attenuation vibration of freely impacting generation is stopped as early as possible.
But when being supported on high frequency, rubber elasticity has bigger dynamic stiffness, as shown in Figure 1.Test shows that when excited frequency is higher than 200Hz the dynamic stiffness that rubber elasticity supports can increase suddenly.The high-performance vibration reduction system that this characteristic makes the designer not design to meet the elastic support designing requirement.Significantly vibrate because big rigidity and damping can suppress low frequency, but worsened the high frequency anti-acoustic capability of vibration insulating system, and little rigidity and damping can suppress the low frequency vibration isolation performance that the dither noise has reduced vibration insulating system.Therefore the designer's way that can only take to compromise is come the design flexibility support system, and this has just caused the part forfeiture of rubber elasticity support system vibration and noise reducing ability.
Summary of the invention
In view of these problems relevant with prior art, the purpose of this utility model is to provide a kind of rational in infrastructure, in light weight, low cost of manufacture, large-scale wind electricity unit gear-box hydroelastic system that reliability is high to support.
For reaching above-mentioned purpose, the gear-box hydroelastic system of a kind of Large-scale Wind Turbines of the utility model supports, and comprising:
Rubber spring, its quantity is four, the inside of each rubber spring all has liquid chamber, and two rubber springs that have first liquid chamber and second liquid chamber respectively vertically are positioned at the same side, and two rubber springs that have the 3rd liquid chamber and the 4th liquid chamber respectively vertically are positioned at opposite side;
Hydraulic pipe line, wherein a hydraulic pipe line is communicated with described first liquid chamber and described the 4th liquid chamber, and another hydraulic pipe line is communicated with described second liquid chamber and described the 3rd liquid chamber; And
The damper element retainer connects the rubber spring that homonymy is arranged, and is used to keep the relative position between the homonymy rubber spring.
The gear-box hydroelastic system of described Large-scale Wind Turbines supports, and wherein, described rubber spring adopts natural rubber to make.
The gear-box hydroelastic system of described Large-scale Wind Turbines supports, and wherein, described damper element retainer connects the rubber spring that homonymy is arranged by bolt.
The gear-box hydroelastic system of described Large-scale Wind Turbines supports, and wherein, described hydroelastic system supports and is used for the support teeth roller box, and a support arm is respectively stretched out in the both sides of described gear-box, and each support arm is limited between the rubber spring of per two positioned opposite,
The gear-box hydroelastic system of described Large-scale Wind Turbines supports, wherein, the top of described damper element retainer is provided with at least one through hole, utilize an end of stud to be threaded with mainframe, the through hole that the other end of stud passes the damper element retainer is connected with nut thread again.
The gear-box hydroelastic system of described Large-scale Wind Turbines supports, and wherein, is filled with the hydraulic oil of the predetermined volumes of vacuum in the described liquid chamber.
The beneficial effects of the utility model are: hydroelastic system supports has that structure is simple relatively, in light weight, cost is low, and can in certain frequency range, significantly improve the advantage of gear-box working stability, in powerful wind power generating set, will be widely used.
Description of drawings
Fig. 1 is that existing rubber elasticity supports the schematic representation that dynamic stiffness changes with excited frequency;
The fundamental diagram that Fig. 2 supports for the utility model hydroelastic system;
The stereogram that Fig. 3 supports for the utility model hydroelastic system;
Fig. 4 is the stereogram of the utility model when the support teeth roller box.
Description of reference numerals: 1-first liquid chamber; 2-second liquid chamber; 3-the 3rd liquid chamber; 4-the 4th liquid chamber; The 5-hydraulic pipe line; The 6-rubber spring; 7-damper element retainer; The 8-gear-box; The 81-support arm; The 9-through hole.
Embodiment
At first, for understanding the utility model better, now the damping mechanism that hydroelastic system is supported briefly introduces: hydroelastic system is supported under the little amplitude exciting of high frequency, because between viscous liquid and the conduit wall and the rubbing action between fluid molecule, the resistance of flow of liquid when hydraulic pipe line is bigger.Liquid in the hydraulic tubing is because significant damping effect is played in the damping that linear loss and restriction loss produce.
As shown in Figure 2, its fundamental diagram that supports for hydroelastic system.Hydroelastic system supports mainly to be made up of rubber spring and hydraulic pipe line, and wherein, described rubber spring contains liquid chamber, and the liquid chamber that per two diagonal angles are arranged is connected by the hydraulic pipe line that can produce damping.Specifically, first liquid chamber 1 is connected by hydraulic pipe line 5 with the 4th liquid chamber 4, and second liquid chamber 2 is connected by hydraulic pipe line 5 with the 3rd liquid chamber 3.
Described hydroelastic system supports and mainly plays two aspects at work: the one, and the torsional deflection of opposing gear-box keeps gearbox output shaft and generator input shaft on a center line; The 2nd, reduce the yawing of nodding of gear-box.
Hydroelastic system supports the advantage with change frequently and amplitude variation characteristic, can satisfy the big rigidity of flexible support system low frequency, big damping, the requirement of the little rigidity of high frequency, little damping.Compare with traditional rubber elasticity support, hydroelastic system supports the working stability that can improve gear-box effectively,
As shown in Figure 3, Figure 4, be the preferred embodiment that the gear-box hydroelastic system of a kind of Large-scale Wind Turbines of the utility model supports, described hydroelastic system supports and comprises: hydraulic pipe line 5, rubber spring 6 and damper element retainer 7.In the present embodiment, the quantity of described rubber spring 6 is four, and each rubber spring 6 all adopts natural rubber to make, and is formed with cavity in the inside of rubber spring 6, and described cavity is liquid chamber (1,2,3,4).Per two rubber springs 6 vertically are connected on the damper element retainer 7 by modes that is connected such as bolt connections, and each damper element retainer 7 is used to keep the relative position relation between two rubber springs 6 of homonymy.A support arm 81 is respectively stretched out in supported gear-box 8 both sides, each support arm 81 is limited between the rubber spring 6 of per two homonymies layout, that is to say, two rubber springs 6 that have first liquid chamber 1 and second liquid chamber 2 respectively are positioned at a side of described gear-box 8, and two rubber springs 6 that have the 3rd liquid chamber 3 and the 4th liquid chamber 4 respectively are positioned at the opposite side of described gear-box 8.First liquid chamber 1 is connected by hydraulic pipe line 5 with the 4th liquid chamber 4, and second liquid chamber 2 is connected by hydraulic pipe line 5 with the 3rd liquid chamber 3.The top of described damper element retainer 7 is provided with at least one through hole 9, utilize an end of stud to be threaded with mainframe, the through hole 9 that the other end of stud passes damper element retainer 7 is connected with the nut thread that is complementary again, with this damper element retainer 7 is connected with the mainframe (not shown) of wind power generating set.
After liquid chambers (1,2,3,4) in the described rubber spring 6 were vacuumized, the hydraulic oil of filling one constant volume in described liquid chamber guaranteed that with this described liquid chamber satisfies certain rigidity requirement in the course of the work again.
In when, between gear-box 8 and the mainframe certain vertical deviation taking place when, be all first liquid chamber 1 and the 3rd liquid chamber 3 of upside or be all second liquid chamber 2 of downside and the 4th liquid chamber 4 since internal pressure raise, fluid in the hydraulic pipe line 5 begins cross flow one at this moment, and this moment, the rigidity of elastic support was very low.Nodding mostly is the high frequency small amplitude motion, and the cross flow one by liquid has reduced vibration and transmitted to mainframe or gear-box 8.
When gear-box 8 bears the torsional vibration of big load, second liquid chamber 2 that first liquid chamber 1 that the diagonal angle is arranged and the 4th liquid chamber 4 or diagonal angle are arranged and the 3rd liquid chamber 3 be pressurized simultaneously, this moment, the pressure of two liquid chambers of pressurized raise simultaneously simultaneously, cause the pressure reduction in described two liquid chambers very little, fluid flow tendency in the hydraulic pipe line 5 is slow, this moment, the rigidity of whole hydroelastic system support system can be very high, moment of torsion can be very safe supported opposing by hydroelastic system, keep gearbox output shaft and generator input shaft on a center line.
As shown in the above, hydroelastic system supports has that structure is simple relatively, in light weight, cost is low, and can significantly improve the advantage of gear-box working stability in certain frequency range, will be widely used in powerful wind power generating set.
Only the above, it only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, so the change of numerical value or displacement of equivalent elements such as, or, all should still belong to the category that the utility model patent contains according to equalization variation and modification that the utility model claim is done.
Claims (6)
1. the gear-box hydroelastic system of a Large-scale Wind Turbines supports, and it is characterized in that, comprising:
Rubber spring, its quantity is four, the inside of each rubber spring all has liquid chamber, and two rubber springs that have first liquid chamber and second liquid chamber respectively vertically are positioned at the same side, and two rubber springs that have the 3rd liquid chamber and the 4th liquid chamber respectively vertically are positioned at opposite side;
Hydraulic pipe line, wherein a hydraulic pipe line is communicated with described first liquid chamber and described the 4th liquid chamber, and another hydraulic pipe line is communicated with described second liquid chamber and described the 3rd liquid chamber; And
The damper element retainer connects the rubber spring that homonymy is arranged, and is used to keep the relative position between the homonymy rubber spring.
2. the gear-box hydroelastic system of Large-scale Wind Turbines according to claim 1 supports, and it is characterized in that, described rubber spring adopts natural rubber to make.
3. the gear-box hydroelastic system of Large-scale Wind Turbines according to claim 1 supports, and it is characterized in that, described damper element retainer connects the rubber spring that homonymy is arranged by bolt.
4. the gear-box hydroelastic system of Large-scale Wind Turbines according to claim 1 supports, it is characterized in that, described hydroelastic system supports and is used for the support teeth roller box, and a support arm is respectively stretched out in the both sides of described gear-box, and each support arm is limited between the rubber spring of per two positioned opposite.
5. the gear-box hydroelastic system of Large-scale Wind Turbines according to claim 1 supports, it is characterized in that, the top of described damper element retainer is provided with at least one through hole, utilize an end of stud to be threaded with mainframe, the through hole that the other end of stud passes the damper element retainer is connected with nut thread again.
6. the gear-box hydroelastic system of Large-scale Wind Turbines according to claim 1 supports, and it is characterized in that, is filled with the hydraulic oil of the predetermined volumes of vacuum in the described liquid chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201957262U CN201747854U (en) | 2010-05-14 | 2010-05-14 | Hydraulic elastic support for gearboxes of large wind turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201957262U CN201747854U (en) | 2010-05-14 | 2010-05-14 | Hydraulic elastic support for gearboxes of large wind turbines |
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| Publication Number | Publication Date |
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| CN201747854U true CN201747854U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201957262U Expired - Fee Related CN201747854U (en) | 2010-05-14 | 2010-05-14 | Hydraulic elastic support for gearboxes of large wind turbines |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012073505A1 (en) | 2010-11-30 | 2012-06-07 | Mitsubishi Heavy Industries, Ltd. | Power generating apparatus of renewable energy type |
| US8601805B2 (en) | 2011-04-05 | 2013-12-10 | Mitsubishi Heavy Industries, Ltd. | Power generating apparatus of renewable energy type |
| US8622719B2 (en) | 2010-11-30 | 2014-01-07 | Mitsubishi Heavy Industries, Ltd. | Hydraulic pump structure for wind turbine generator or tidal current generator and method of mounting hydraulic pump |
| US8624413B2 (en) | 2011-09-22 | 2014-01-07 | Mitsubishi Heavy Industries, Ltd. | Regeneration energy type electric generation apparatus and its rotor fixing method |
| US8710693B2 (en) | 2011-09-22 | 2014-04-29 | Mitsubishi Heavy Industries, Ltd. | Power generating apparatus of renewable energy type and method of attaching and detaching blade |
| CN104879475A (en) * | 2015-04-24 | 2015-09-02 | 盐城工学院 | Bidirectional damping hydraulic support type wind power gear box mounting device |
| CN107458569A (en) * | 2017-07-13 | 2017-12-12 | 江苏科技大学 | It is a kind of to subtract the marine main engine pedestal for shaking vibration damping |
| CN107701702A (en) * | 2017-10-17 | 2018-02-16 | 株洲时代新材料科技股份有限公司 | A kind of hydraulic support device for gear-box |
| CN118998289A (en) * | 2024-09-25 | 2024-11-22 | 江苏铁科新材料股份有限公司 | Elastic rubber pad based on energy supply of energy accumulator and application method thereof |
-
2010
- 2010-05-14 CN CN2010201957262U patent/CN201747854U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012073505A1 (en) | 2010-11-30 | 2012-06-07 | Mitsubishi Heavy Industries, Ltd. | Power generating apparatus of renewable energy type |
| US8622719B2 (en) | 2010-11-30 | 2014-01-07 | Mitsubishi Heavy Industries, Ltd. | Hydraulic pump structure for wind turbine generator or tidal current generator and method of mounting hydraulic pump |
| US8601805B2 (en) | 2011-04-05 | 2013-12-10 | Mitsubishi Heavy Industries, Ltd. | Power generating apparatus of renewable energy type |
| US8624413B2 (en) | 2011-09-22 | 2014-01-07 | Mitsubishi Heavy Industries, Ltd. | Regeneration energy type electric generation apparatus and its rotor fixing method |
| US8710693B2 (en) | 2011-09-22 | 2014-04-29 | Mitsubishi Heavy Industries, Ltd. | Power generating apparatus of renewable energy type and method of attaching and detaching blade |
| CN104879475A (en) * | 2015-04-24 | 2015-09-02 | 盐城工学院 | Bidirectional damping hydraulic support type wind power gear box mounting device |
| CN104879475B (en) * | 2015-04-24 | 2017-03-29 | 盐城工学院 | Two-way vibration damping hydraulic pressure brace type wind turbine gearbox erecting device |
| CN107458569A (en) * | 2017-07-13 | 2017-12-12 | 江苏科技大学 | It is a kind of to subtract the marine main engine pedestal for shaking vibration damping |
| CN107458569B (en) * | 2017-07-13 | 2019-02-26 | 江苏科技大学 | A ship main engine base with anti-rolling and anti-vibration |
| CN107701702A (en) * | 2017-10-17 | 2018-02-16 | 株洲时代新材料科技股份有限公司 | A kind of hydraulic support device for gear-box |
| CN118998289A (en) * | 2024-09-25 | 2024-11-22 | 江苏铁科新材料股份有限公司 | Elastic rubber pad based on energy supply of energy accumulator and application method thereof |
| CN118998289B (en) * | 2024-09-25 | 2025-01-24 | 江苏铁科新材料股份有限公司 | An elastic rubber pad based on energy supply of accumulator and use method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20130514 |