CN203532693U - Intelligent damping equipment of wind power gear box - Google Patents
Intelligent damping equipment of wind power gear box Download PDFInfo
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- CN203532693U CN203532693U CN201320605971.XU CN201320605971U CN203532693U CN 203532693 U CN203532693 U CN 203532693U CN 201320605971 U CN201320605971 U CN 201320605971U CN 203532693 U CN203532693 U CN 203532693U
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Abstract
The utility model discloses intelligent damping equipment of a wind power gear box. The intelligent damping equipment of the wind power gear box comprises damping element retainers and a vibration sensor, wherein the damping element retainers are arranged on a fan; the vibration sensor is arranged on the wind power gear box; damping elements are arranged on the damping element retainers; the vibration sensor and the damping elements are all connected to a controller through connecting cables. According to the intelligent damping equipment of the wind power gear box, the damping characteristic of magnetorheological fluid can be changed according to the change of a magnetic field, and therefore the rigidity and the damping of the damping elements are adjusted to meet the damping requirement of the wind power gear box within a high-frequency range; the rigidity adjustment range of a system can be greatly broadened, so that the damping elements are good in damping characteristic at both low frequency and high frequency; energy consumption is very low, and active control under the small energy consumption can be realized; due to the fact that the vibration sensor is arranged, the controller can be used for intelligently adjusting the damping of the magnetorheological fluid in the four damping elements according to the vibration level measured by the vibration sensor and by the combination of a system model, and therefore the active and intelligent control of the vibration amplitude of the gear box is realized, and the good damping effect is achieved.
Description
Technical field
The utility model relates to a kind of intelligent vibration damping device of wind turbine gearbox.
Background technique
At present, along with going from bad to worse of energy shortage and ecotope, the significance of generation of electricity by new energy technology has generally been recognized in countries in the world, in fields such as wind energy, nuclear energy, solar energy, has launched a large amount of research and developments.Wind energy, as a kind of clean renewable energy sources, has obtained the encouragement energetically of national governments, and development rapidly, over nearly 10 years, whole world wind-power electricity generation electric motor power is with nearly 30% annual growth develop rapidly, and China's installed capacity of wind-driven power increases the fastest, has become the country of global installed capacity of wind-driven power maximum.Wind energy development can alleviate air pollution and water pollutes, if but deal with improperly, can increase noise pollution.Gear-box in wind power generating set is an important mechanical part, parts as transferring power, at run duration, bear dynamic load and static load simultaneously, make gear-box produce complicated vibration and noise, these vibrations and noise can have influence on working life and the reliability of whole blower fan, so need to adopt within certain device is controlled at the scope of regulation by the vibration of gear-box and noise.
Elastic support is to improve the important means of wind turbine gearbox vibration noise level, and elastic support used mainly contains rubber elasticity support and liquid composite elastic support at present.Rubber elasticity support is mainly to utilize the elasticity of rubber to realize the object of gear case of blower vibration damping, its principle is by selecting the geomery of rubber, make all directions stiffness coefficient reach desirable numerical value, the interior frictional attenuation effect producing by the interaction between molecule between rubber and rubber molecule and bulking agent, the vibration of isolation gear-box.Yet because rubber has larger dynamic stiffness when the high frequency, this specific character not only can not suppress vibration, can worsen on the contrary dither and the noiseproof feature of system.Therefore, when high frequency, rubber elasticity supports and cannot realize the good vibration insulation and noise reduction effect of system.Liquid composite elastic support is the vibration reduction support technology growing up on rubber elasticity brace foundation, this technology is in the inner liquid container that increases of rubber, and by the liquid container interconnection of two toggle sides of gear-box, support and compare with rubber elasticity, can increase the range in stiffness of whole elastic support, improve the ability that suppresses gear-box vibration, but, this technology is according to the level of vibration of gear-box passive change rigidity and damping, and the excursion of rigidity and damping is limited, cannot meet the vibration damping demand of the large frequency range of gear-box.
Model utility content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, and a kind of intelligent vibration damping device of wind turbine gearbox is provided, and this device can be according to level of vibration active accommodation system stiffness and the damping of gear-box.
For achieving the above object, the utility model adopts following technical proposals:
A kind of intelligent vibration damping device of wind turbine gearbox, comprise the damping element retainer being installed on blower fan and be installed on the vibration transducer on gear case of blower, on described damping element retainer, damping element is installed, vibration transducer and damping element are all connected to controller by conjunction cable.
Described damping element comprises that one with the base plate of cavity, bottom edge connects rubber plate, Rectifier plate and elastic component from top to bottom successively by bolt, the inner elastic caoutchouc housing with cavity is installed on rubber plate, the top of elastic caoutchouc housing is provided with connecting plate, is provided with the topping up screw communicating with elastic caoutchouc enclosure interior cavity on connecting plate; A large cavity of the common composition of cavity of the cavity of described base plate and elastic caoutchouc housing, large cavity is divided into upper and lower two-part by elastic component, and one end of Rectifier plate extend in upper half part of large cavity, is wound with coil on Rectifier plate, and coil one end is connected to controller; In upper half part of large cavity, be filled with magnetic flow liquid, in lower half portion, be filled with nitrogen.
On described Rectifier plate, have throttle orifice.
The utility model comprises damping element retainer, vibration transducer, conjunction cable, controller, damping element, damping element is arranged on damping element retainer, vibration transducer is arranged on gear-box and is connected to controller, and conjunction cable connects controller and damping element.
Damping element comprises topping up screw, connecting plate, elastic caoutchouc, magnetic flow liquid, coil, rubber plate, Rectifier plate, elastic component, base plate, connecting bolt and nitrogen, connecting plate is arranged on elastic caoutchouc, topping up screw is housed on connecting plate, elastic caoutchouc is arranged on rubber plate, rubber plate, Rectifier plate and elastic component are connected on base plate by connecting bolt, coil is arranged on Rectifier plate, has throttle orifice on Rectifier plate, between elastic component and base plate, is filled with nitrogen.
The signal that controller records according to vibration transducer, in conjunction with blower fan system model, the rigidity that intelligence computation system vibration damping is required and damping size, by conjunction cable, export suitable electric current to coil, coil produces magnetic field on Rectifier plate, the variation in magnetic field causes the characteristic variations of magnetic flow liquid, thereby changes rigidity and the damping of damping element, realizes the object of system vibration and noise reducing.
Elastic caoutchouc is rubber or metal compounded rubber.
The utility model beneficial effect is:
1, because magnetic flow liquid can change damping characteristic according to the variation in magnetic field, thus rigidity and the damping of adjustment damping element, and therefore, the utility model can meet the vibration damping needs in the large frequency range of wind turbine gearbox;
2, the utility model adopts the form of elastic caoutchouc, magnetic flow liquid and the combination of nitrogen chamber, can greatly strengthen the stiffness tuning scope of system, makes damping element all have good damping behavior at low frequency and high frequency;
3, because magnetic flow liquid only needs electric power seldom, can realize the great variety of characteristic, so the utility model institute's power consumption source is very little, can realize the ACTIVE CONTROL under little energy consumption;
4, due to vibration transducer, the level of vibration that controller can be measured according to vibration transducer, coupling system model, the damping of magnetic flow liquid in four damping elements of adjusting of intelligence, thereby realize active, the intelligent control of gear-box vibration amplitude, thereby realize good effectiveness in vibration suppression.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is damping element structural representation;
Wherein 1, wind turbine gearbox, 2 damping element retainers, 3, damping element, 4, vibration transducer, 5 conjunction cables, 6 controllers, 7, topping up screw, 8, connecting plate, 9, elastic caoutchouc, 10, magnetic flow liquid, 11, coil, 12, connecting bolt, 13 rubber plates, 14, Rectifier plate, 15, elastic component, 16, nitrogen, 17, base plate.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
In Fig. 1, elastic element retainer 2 is arranged on blower fan, damping element 3 is arranged on elastic element retainer 2 by bolt, two counter-force arm of wind turbine gearbox 1 are arranged on respectively between upper and lower two damping elements 3, vibration transducer 4 is arranged on wind turbine gearbox 1, vibration transducer 4 is connected with controller 6, and 4 elastic elements 3 are connected with controller 6 by conjunction cable 5 respectively.
In Fig. 2, connecting plate 8 is connected with elastic caoutchouc 9, topping up screw 7 is arranged on connecting plate 8, elastic caoutchouc 9 is arranged on rubber plate 14, Rectifier plate 14 is connected with base plate 17 with rubber plate 14 by connecting bolt 12 with elastic component 15, coil 11 is connected on Rectifier plate 14, between connecting plate 8, elastic caoutchouc 9, rubber plate 14 and elastic component 15, is full of magnetic flow liquid, between elastic component 15 and base plate 17, is full of nitrogen 16.
The signal that controller 6 records according to vibration transducer, in conjunction with blower fan system model, the rigidity that intelligence computation system vibration damping is required and damping size, by conjunction cable, export suitable electric current to coil, coil produces magnetic field on Rectifier plate, the variation in magnetic field causes the characteristic variations of magnetic flow liquid, thereby changes rigidity and the damping of damping element, realizes the object of system vibration and noise reducing.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (2)
1. the intelligent vibration damping device of a wind turbine gearbox, it is characterized in that, comprise the damping element retainer being installed on blower fan and be installed on the vibration transducer on gear case of blower, on described damping element retainer, damping element is installed, vibration transducer and damping element are all connected to controller by conjunction cable;
Described damping element comprises that one with the base plate of cavity, bottom edge connects rubber plate, Rectifier plate and elastic component from top to bottom successively by bolt, the inner elastic caoutchouc housing with cavity is installed on rubber plate, the top of elastic caoutchouc housing is provided with connecting plate, is provided with the topping up screw communicating with elastic caoutchouc enclosure interior cavity on connecting plate; A large cavity of the common composition of cavity of the cavity of described base plate and elastic caoutchouc housing, large cavity is divided into upper and lower two-part by elastic component, and one end of Rectifier plate extend in upper half part of large cavity, is wound with coil on Rectifier plate, and coil one end is connected to controller; In upper half part of large cavity, be filled with magnetic flow liquid, in lower half portion, be filled with nitrogen.
2. the intelligent vibration damping device of wind turbine gearbox as claimed in claim 1, is characterized in that, on described Rectifier plate, has throttle orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605971.XU CN203532693U (en) | 2013-09-29 | 2013-09-29 | Intelligent damping equipment of wind power gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605971.XU CN203532693U (en) | 2013-09-29 | 2013-09-29 | Intelligent damping equipment of wind power gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532693U true CN203532693U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320605971.XU Expired - Fee Related CN203532693U (en) | 2013-09-29 | 2013-09-29 | Intelligent damping equipment of wind power gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470737A (en) * | 2013-09-29 | 2013-12-25 | 山东大学 | Intelligent damping equipment of wind power gear box |
| CN116576241A (en) * | 2023-07-13 | 2023-08-11 | 吉林大学 | Intelligent vibration damper for gearbox of light loader |
-
2013
- 2013-09-29 CN CN201320605971.XU patent/CN203532693U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470737A (en) * | 2013-09-29 | 2013-12-25 | 山东大学 | Intelligent damping equipment of wind power gear box |
| CN103470737B (en) * | 2013-09-29 | 2015-11-04 | 山东大学 | The intelligent vibration damping device of wind turbine gearbox |
| CN116576241A (en) * | 2023-07-13 | 2023-08-11 | 吉林大学 | Intelligent vibration damper for gearbox of light loader |
| CN116576241B (en) * | 2023-07-13 | 2023-09-12 | 吉林大学 | Intelligent vibration damper for gearbox of light loader |
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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 |
Granted publication date: 20140409 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |