CN203783823U - Wind power generator unit vibration damper - Google Patents
Wind power generator unit vibration damper Download PDFInfo
- Publication number
- CN203783823U CN203783823U CN201420205909.6U CN201420205909U CN203783823U CN 203783823 U CN203783823 U CN 203783823U CN 201420205909 U CN201420205909 U CN 201420205909U CN 203783823 U CN203783823 U CN 203783823U
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- China
- Prior art keywords
- spring
- vibration
- balancing weight
- generating set
- guide rail
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- Expired - Fee Related
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- Y02E10/722—
Abstract
The utility model discloses a wind power generator unit vibration damper, which comprises a first guide rail pair, a first spring system, a weighting block base and a weighting block, wherein the first guide rail pair comprises a guide rail and a sliding block, and the sliding block is mounted on the guide rail in a matching manner; the first spring system comprises a first spring, a second spring, spring connecting bodies and spring fixing blocks, the spring connecting bodies are mounted at the upper end of the sliding block, one ends of the first spring and the second spring are respectively mounted at the two ends of the spring connecting bodies in the direction of the guide rail, and the other ends of the first spring and the second spring are respectively mounted at the two ends of the guide rail via the spring fixing blocks; the weighting block base is fixedly mounted on the sliding block, the weighting block is mounted on the weighting block base, and the vibration frequency is coincident with the partial vibration of the main structure via the vibration of the vibration damper, as a result, the vibration of the whole cabinet and the blade is neutralized, an unfavourable result caused by the vibration is avoided, the service life of the blade is prolonged, and the smooth and reliable running of the wind power generator is ensured.
Description
Technical field
The utility model relates to technical field of wind power generator, especially a kind of wind-driven generator vibration damper with fine damping effect.
Background technique
For fixed pitch stall control type wind power generating set; if the ambient temperature of wind energy turbine set is lower than-20 ℃; wind speed is over (about 16～25m/s) after rated point; in wind power generating set normal course of operation, can there is irregular, uncertain blade transient vibration phenomenon, i.e. the vibration (edgewise vibration) of blade in plane of rotation; this vibration is dispersed sometimes; cause unit vibration to increase sharply, cause compressor emergency shutdown, affect the normal power generation of unit.Meanwhile, this vibration is also harmful to blade, and it may cause trailing edge structural failure, cracks, and produces transverse crack, serious threat blade structure safety in blade maximum chord length position.
In large situations of attack downstream, occur that separation increases resistance, resistance increment will limit the power stage of wind-driven generator.Within the scope of the high wind speed of sea level wind speed 14～25m/s scope, conventionally may occur the operating mode of the large angle of attack, in this wind speed range, every kind of stall type is all easy to be subject to the shimmy impact of blade that stall is induced.These vibrations caused blade trailing edge produce some with blade exhibition to the vertical visible crack of axle.
In sum, the root of shimmy direction vibration is aerodynamic force generation while move due to stall, and reason is that after blade stall, pneumatic damping becomes due to negative value.When wind power generating set is in operation irregular, the uncertain blade transient vibration phenomenon of blade generation, this vibration is by blade main shaft, gear-box, engine room foundation and then cause whole cabin to vibrate, and has a strong impact on the smooth stable operation of power generating equipment.
Model utility content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of wind-driven generator vibration damper that can effectively alleviate the adverse effect that the vibration of blade in plane of rotation cause is provided
For realizing above-mentioned model utility object, the utility model adopts technological scheme to be:
A vibration of wind generating set damper, comprises the first guiding pairs, the first spring system, balance weight mechanism; Described the first guiding pairs comprises guide rail and slide block, and described slide block cooperation is arranged on guide rail;
Described the first spring system comprises the first spring, the second spring, spring connecting body and spring fixed block, described spring connecting body is arranged on described upper end of slide block, one end of described the first spring and the second spring is arranged on respectively described spring connecting body along the two ends of guide rail direction, and the other end of described the first spring and the second spring is arranged on respectively the two ends of guide rail by spring fixed block;
Described balance weight mechanism is fixedly mounted on slide block.
Further, described balance weight mechanism comprises balancing weight pedestal and balancing weight, and described balancing weight pedestal is fixedly mounted on slide block, and described balancing weight is arranged on described balancing weight pedestal, and the quality of described balancing weight is adjustable.
Further, also comprise the second guiding pairs identical with the first guiding pairs structure and arranged parallel, and the second spring system identical with the first spring system structure and arranged parallel;
The spring connecting body of described the second spring system is arranged on the upper end of slide block of described the second guiding pairs, and the guide rail two ends of described the second guiding pairs are separately installed with the spring fixed block of the second spring system;
Described balancing weight pedestal is arranged between the first guiding pairs and the second guiding pairs, and both sides are fixedly mounted on respectively on two slide blocks of the first guiding pairs and the second guiding pairs.
Further, on described balancing weight pedestal, be provided with fixing column, described balancing weight is a plurality of and is sheet, is provided with the fixed via matching with described fixing column on each balancing weight, described balancing weight, by the cooperation of fixed via and fixing column, is placed on described balancing weight pedestal.
Further, described the first spring, the second spring arranged outside have soft spring chamber.
Further, described spring connecting body comprises and connects base and two spring connecting sheets, and described connection base is fixedly mounted on described slide block, and described two spring connecting sheets lay respectively at the two ends of described connection base, and be connected that base is vertical to be arranged.
Further, between described spring connecting sheet and connection base, be provided with right-angled triangle fixed plate, two right angle sides of described right-angled triangle fixed plate are packed in respectively on described connection base and described spring connecting sheet.
Further, also comprise spring conductor rod, described spring conductor rod comprises directional post and sleeve, one end of described directional post is sleeved in described sleeve, and can slide along sleeve, the two ends of described spring conductor rod are connected to respectively spring connecting body and guide rail one end, and described spring housing is contained on described spring conductor rod.
Further, between described directional post and sleeve, be filled with damp liquid.
Further, also comprise support, described the first guiding pairs is arranged on described support, and described support is positioned at the generator below of wind power generating set, and is packed in the cabin inwall of wind power generating set.
Adopt after technique scheme, the utility model compared with prior art has following beneficial effect:
By the setting of spring system and balancing weight, when wind power generating set is in operation irregular, the uncertain blade transient vibration phenomenon of blade generation, by blade main shaft, gear-box, engine room foundation and then while causing whole cabin that vibration occurs, the vibration of the balancing weight by installing on engine room foundation, spring etc., vibration frequency is consistent with main structure partial vibration, and then offset the vibration of whole cabin, blade, thereby avoid because this vibrates caused negative consequence, in the working life that extends blade, guaranteed the smooth stable operation of wind power generating set.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model plan view;
Fig. 3 is the utility model plan view.
Wherein:
1 ... the first guiding pairs, 11 ... guide rail, 12 ... slide block, 2 ... the first spring system, 21 ... the first spring, 22 ... the second spring, 23 ... spring connecting body, 231 ... connect base, 232 ... spring connecting sheet, 233 ... right-angled triangle fixed plate, 24 ... spring fixed block, 25 ... guide rod, 3 ... balancing weight pedestal, 4 ... balancing weight, 5 ... the second guiding pairs, 51 ... guide rail, 52 ... slide block, 6 ... the second spring system, 63 ... spring connecting body, 64 ... spring fixed block.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the utility model provides a kind of wind-driven generator vibration damper, and this wind-driven generator vibration damper comprises the first guiding pairs 1, the first spring system 2, balancing weight pedestal 3 and balancing weight 4; Described the first guiding pairs 1 comprises guide rail 11 and slide block 12, and described slide block 12 cooperations are arranged on guide rail 11; Described the first spring system 2 comprises the first spring 21, the second spring 22, spring connecting body 23 and spring fixed block 24, described spring connecting body 23 is arranged on described slide block 12 upper ends, one end of described the first spring 21 and the second spring 22 is arranged on respectively described spring connecting body 23 along the two ends of guide rail 11 directions, and the other end of described the first spring 21 and the second spring 22 is arranged on respectively the two ends of guide rail 11 by spring fixed block 24; Described balancing weight pedestal 3 is fixedly mounted on slide block 12, and described balancing weight peace 4 is put on described balancing weight pedestal 3.Adopt above-mentioned wind-driven generator vibration damper, when there is blade transient vibration and then causing that the miscellaneous parts such as cabin vibrate together, spring system drives balancing weight motion, because balancing weight motion need to consume certain energy, thereby offset the vibration of whole cabin, blade, and then realize the object of damping.
As a kind of preferred embodiment of the utility model, also comprise the second guiding pairs 5 identical with the first guiding pairs 1 structure and arranged parallel, and the second spring system 6 identical with the first spring system 2 structures and arranged parallel; The spring connecting body 63 of described the second spring system 6 is arranged on slide block 52 upper ends of described the second guiding pairs 5, and guide rail 51 two ends of described the second guiding pairs 5 are separately installed with the spring fixed block 64 of the second spring system 6; Described balancing weight pedestal 3 is arranged between the first guiding pairs 1 and the second guiding pairs 5, and both sides are fixedly mounted on respectively on two slide blocks 12,52 of the first guiding pairs 1 and the second guiding pairs 5.
Under this design, two guiding pairss and two groups of spring systems are symmetrical mutually, and breeding pedestal and balancing weight are between two guiding pairss, preferably, when not working, balancing weight is positioned at the neutral position of the first spring system or the second spring system, offset to greatest extent vibration, effectiveness in vibration suppression is better.
As a kind of preferred embodiment of the present utility model, the quality of described balancing weight 4 is adjustable.Can be set to, on described balancing weight pedestal 3, be provided with fixing column (not shown), described balancing weight 4 is a plurality of and is sheet, on each balancing weight 4, be provided with the fixed via (not shown) matching with described fixing column, described balancing weight 4, by the cooperation of fixed via and fixing column, is placed on described balancing weight pedestal 3.The quantity of equipped piece is installed according to actual needs, thereby reaches the adjustable object of balancing weight, in actual use, different balancing weight weight, can realize the vibration damping under different wind-force.
As a kind of preferred embodiment of the present utility model, described the first spring 21, the second spring 22 arranged outside have soft spring chamber (not shown).This spring can effectively be protected and be arranged on its inner spring by force, avoids the foreign material such as adhesive dust on spring, thus the normal use of image spring.
As a kind of preferred embodiment of the utility model, described spring connecting body 23 comprises connection base 231 and two spring connecting sheets 232, described connection base 231 is fixedly mounted on described slide block 12, described two spring connecting sheets 232 lay respectively at the two ends of described connection base 231, and be connected the vertical setting of base 231.Between described spring connecting sheet 232 and connection base 231, be provided with right-angled triangle fixed plate 233, two right angle sides of described right-angled triangle fixed plate 233 are packed in respectively on described connection base 231 and described spring connecting sheet 232.The quality of this set lower spring connecting sheet is minimum, and leg-of-mutton rock-steady structure fixed effect is better.
As a kind of preferred embodiment of the present utility model, this vibration damper also comprises spring conductor rod 25, described spring conductor rod 25 comprises directional post and sleeve, one end of described directional post is sleeved in described sleeve, and can slide along sleeve, the two ends of described spring conductor rod are connected to respectively spring connecting body and guide rail one end, and described spring housing is contained on described spring conductor rod.This guide rod can play leading role to the operation of spring, makes spring carry out fore and aft motion according to the direction of guide rod, makes spring effective utilization the highest.
As a kind of preferred embodiment of the present utility model, between described directional post and sleeve, be filled with damp liquid.Can more effective counteracting vibrate, play better effectiveness in vibration suppression.
As a kind of preferred embodiment of the present utility model, described the first guiding pairs 1 is arranged on described support, and described support is arranged on the generator below of wind power generating set.Saved space, in actual production, generator is arranged on engine room foundation, between generator and engine room foundation, there is certain space, this space has 1450 * 450 * 126 sizes at least, enough settle vibration damper provided by the utility model, realized the vibration damping under the prerequisite that does not increase cabin.
As a kind of preferred embodiment of the utility model, on described balancing weight pedestal, be provided with two fixing columns, two fixing columns are with respect to the Central Symmetry of balancing weight pedestal, preferably at the first spring and the second spring both sides, respectively arrange one, corresponding installation two assembly pouring weights on two fixing columns, and two assembly pouring weights is identical in quality, its advantage is, in limited space, increased to greatest extent the weight that balancing weight can be installed, be more conducive to realize vibration damping.
The utility model is by vibration damper is set in cabin, approaching or consistent with cabin frequency by the vibration frequency of damper, changes the resonance characteristics of whole engine room structure, has reached effectiveness in vibration suppression, absorbs the vibrational energy of the target vibration shape.
Embodiment in above-described embodiment can further combine or replace; and embodiment is described preferred embodiment of the present utility model; not design of the present utility model and scope are limited; do not departing under the prerequisite of the utility model design philosophy; the various changes and modifications that in related domain, professional and technical personnel makes the technical solution of the utility model, all belong to protection domain of the present utility model.
Claims (10)
1. a vibration of wind generating set damper, is characterized in that: comprise the first guiding pairs, the first spring system, balance weight mechanism;
Described the first guiding pairs comprises guide rail and slide block, and described slide block cooperation is arranged on guide rail;
Described the first spring system comprises the first spring, the second spring, spring connecting body and spring fixed block, described spring connecting body is arranged on described upper end of slide block, one end of described the first spring and the second spring is arranged on respectively described spring connecting body along the two ends of guide rail direction, and the other end of described the first spring and the second spring is arranged on respectively the two ends of guide rail by spring fixed block;
Described balance weight mechanism is fixedly mounted on slide block.
2. a kind of vibration of wind generating set damper according to claim 1, it is characterized in that, described balance weight mechanism comprises balancing weight pedestal and balancing weight, described balancing weight pedestal is fixedly mounted on slide block, described balancing weight is arranged on described balancing weight pedestal, and the quality of described balancing weight is adjustable.
3. a kind of vibration of wind generating set damper according to claim 1, it is characterized in that: also comprise the second guiding pairs identical with the first guiding pairs structure and arranged parallel, and the second spring system identical with the first spring system structure and arranged parallel;
The spring connecting body of described the second spring system is arranged on the upper end of slide block of described the second guiding pairs, and the guide rail two ends of described the second guiding pairs are separately installed with the spring fixed block of the second spring system;
Described balancing weight pedestal is arranged between the first guiding pairs and the second guiding pairs, and both sides are fixedly mounted on respectively on two slide blocks of the first guiding pairs and the second guiding pairs.
4. a kind of vibration of wind generating set damper according to claim 1, it is characterized in that, on described balancing weight pedestal, be provided with fixing column, described balancing weight is a plurality of and is sheet, on each balancing weight, be provided with the fixed via matching with described fixing column, described balancing weight, by the cooperation of fixed via and fixing column, is placed on described balancing weight pedestal.
5. a kind of vibration of wind generating set damper according to claim 1, is characterized in that, described the first spring, the second spring arranged outside have soft spring chamber.
6. a kind of vibration of wind generating set damper according to claim 1, it is characterized in that, described spring connecting body comprises connection base and two spring connecting sheets, described connection base is fixedly mounted on described slide block, described two spring connecting sheets lay respectively at the two ends of described connection base, and be connected that base is vertical to be arranged.
7. a kind of vibration of wind generating set damper according to claim 6, it is characterized in that, between described spring connecting sheet and connection base, be provided with right-angled triangle fixed plate, two right angle sides of described right-angled triangle fixed plate are packed in respectively on described connection base and described spring connecting sheet.
8. a kind of vibration of wind generating set damper according to claim 1, it is characterized in that, also comprise spring conductor rod, described spring conductor rod comprises directional post and sleeve, one end of described directional post is sleeved in described sleeve, and can slide along sleeve, the two ends of described spring conductor rod are connected to respectively spring connecting body and guide rail one end, and described spring housing is contained on described spring conductor rod.
9. a kind of vibration of wind generating set damper according to claim 8, is characterized in that, between described directional post and sleeve, is filled with damp liquid.
10. a kind of vibration of wind generating set damper according to claim 1, it is characterized in that, also comprise support, described the first guiding pairs is arranged on described support, described support is positioned at the generator below of wind power generating set, and is packed in the cabin inwall of wind power generating set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205909.6U CN203783823U (en) | 2014-04-24 | 2014-04-24 | Wind power generator unit vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205909.6U CN203783823U (en) | 2014-04-24 | 2014-04-24 | Wind power generator unit vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783823U true CN203783823U (en) | 2014-08-20 |
Family
ID=51320016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420205909.6U Expired - Fee Related CN203783823U (en) | 2014-04-24 | 2014-04-24 | Wind power generator unit vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783823U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457813A (en) * | 2018-02-07 | 2018-08-28 | 南京风电科技有限公司 | A kind of slideable powered shock absorption device for wind-driven generator rear base |
| CN109163048A (en) * | 2018-09-25 | 2019-01-08 | 南京高传机电自动控制设备有限公司 | A kind of wind power generating set of efficient stable |
| WO2020000666A1 (en) * | 2018-06-28 | 2020-01-02 | 北京金风科创风电设备有限公司 | Damper and load-bearing enclosing structure provided with damper |
| CN113738602A (en) * | 2020-05-28 | 2021-12-03 | 北京金风科创风电设备有限公司 | Damping integrated device, damper and wind generating set |
-
2014
- 2014-04-24 CN CN201420205909.6U patent/CN203783823U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457813A (en) * | 2018-02-07 | 2018-08-28 | 南京风电科技有限公司 | A kind of slideable powered shock absorption device for wind-driven generator rear base |
| WO2020000666A1 (en) * | 2018-06-28 | 2020-01-02 | 北京金风科创风电设备有限公司 | Damper and load-bearing enclosing structure provided with damper |
| US11549277B2 (en) | 2018-06-28 | 2023-01-10 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Damper and load-bearing enclosing structure provided with damper |
| CN109163048A (en) * | 2018-09-25 | 2019-01-08 | 南京高传机电自动控制设备有限公司 | A kind of wind power generating set of efficient stable |
| CN113738602A (en) * | 2020-05-28 | 2021-12-03 | 北京金风科创风电设备有限公司 | Damping integrated device, damper and wind generating set |
| US11746749B2 (en) | 2020-05-28 | 2023-09-05 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Damping integrated device, damper and wind turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20200424 |