CN203050990U - Vertical shaft offset type wind turbine provided with buffer springs - Google Patents
Vertical shaft offset type wind turbine provided with buffer springs Download PDFInfo
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- CN203050990U CN203050990U CN 201320062803 CN201320062803U CN203050990U CN 203050990 U CN203050990 U CN 203050990U CN 201320062803 CN201320062803 CN 201320062803 CN 201320062803 U CN201320062803 U CN 201320062803U CN 203050990 U CN203050990 U CN 203050990U
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- vane
- vertical shaft
- blade
- sharf
- shaft
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The utility model discloses a vertical shaft offset type wind turbine provided with buffer springs. Two vane shafts equal in length are installed on the vertical shaft in a mutually-perpendicular mode and are matched with each other in a rotating mode. Two ends of each vane shaft are respectively provided with a light vane, and the two light vanes of each vane shaft are perpendicular to each other. A vane weight ball is installed on each vane shaft and close to the vertical shaft, and the vane weight ball and one light vane are located on two opposite sides of each vane shaft. One ends of vane shaft limiting rods are installed on the vertical shaft, and the other ends of the vane shaft limiting rods extend out along the axial directions of the vane shafts. The side faces of the extending ends of the vane shaft limiting rods are respectively provided with one buffer spring, and therefore rigid contact on limiting points is changed into elastic contact. Due to the fact that the vane weight balls are installed, the downwind light vanes can be located at the vertical position through breeze, a large wind collection face can be obtained, and therefore the wind turbine is strong in breeze generating capacity, low in start-up wind speed, wide in suitable area and high in generating operating time ratio. Due to the fact that the buffer springs are installed and the rigid contact is changed into the elastic buffering contact, the vertical shaft offset type wind turbine is small in impact force and low in noise.
Description
Technical field
The utility model relates to a kind of offset distance formula vertical axis windmill, relates in particular to a kind of vertical shaft offset distance formula wind energy conversion system with damping spring.
Background technique
Nowadays, non-renewable energy resources such as oil, coal, rock gas all are faced with the severe contamination of reserves exhaustion, rise in price even earth environment etc.The nuclear fission generating is dangerous high, nuclear waste befouling environment, difficult treatment; Utilize the nuclear fusion energy generating also infeasible.And solar energy and wind energy are renewable energy sourcess, and environment is not polluted.Therefore, each state all to develop with wind energy and solar energy energetically be the clean reproducible energy of representative.
In current field of wind energy utilization, the wind-driven generator of existing most of big electric motor powers mostly be in treat, outage state, the blower fan utilization ratio is extremely low.Under some specific condition, in addition in order to make blower fan standby at any time generating, also must be to blower fan input control power supply, this makes blower fan the negative power output state occur, has greatly reduced wind energy utilization.Be subjected to the influence of wind turbines rotor structure, mainly there is following problem in existing wind-driven generator: 1. it is all too high to start wind speed and rated wind speed, and situation seriously loses contact with reality.Need development be fit to the wind energy conversion systems that use in most of areas, its startup wind speed and rated wind speed are all very low; 2. the blade of existing wind wheel is carefully grown, and solidity is extremely low, and major part leaks from the space between the blade, and wind energy is not fully utilized; 3. the fan blade Airfoil Design is unreasonable.Current the most widely used wind wheel blade is according to the design of the rotor structure of helicopter.The structural design of the rotor of helicopter is in order to utilize air-flow to improve its lift, but wind wheel blade need overcome the effect of this power, is opposite process.4. most wind wheel blade torsion angles are fixed, and can not adapt to different wind speed.But in actual applications, the wind speed size is at random.Therefore wind wheel is generally operational in non-design work state, and overall efficiency is low, starts difficulty.
Existing offset distance formula blade vertical axis aerogenerator, blade profile is long-pending to be increased, and has improved the wind energy power of catching, and reduces and starts wind speed.Adjust the blade lean angle and can regulate the blower fan rotational speed.The long-pending increase of blade profile can significantly reduce the length of blade, so that the wind wheel blade gross weight significantly reduces, and can utilize wind energy power substantially.Floor space is few, and the omnirange acting starts fast.
Existing offset distance formula blade vertical axis aerogenerator has three kinds of schemes.1. at vertical shaft blade rack is installed, blade is installed in the blade rack two ends with the offset distance form, and blade is by Electric Machine Control.In the time of with the wind, control makes the vertical wind-engaging of blade, wind energy is converted into the rotating mechanical energy of impeller.And when contrary wind, control makes blade be horizontal position, and wind is not produced any resistance.2. at vertical shaft blade rack is installed, blade is installed in the blade rack two ends with the offset distance form.90 degree folk prescriptions are installed to limit stoper on the blade rack, so that the blade folk prescription is no more than 90 degree to offset distance.When any direction be the wind comes from, on one side blade keeps original position owing to folk prescription to position-limiting action, the another side blade is identical with wind direction to be rotated.3. at vertical shaft blade rack is installed, blade is installed blade at the blade rack two ends with 90 degree angles with the offset distance form.At blade rack the limit stoper that the full swing angle is 45 degree is installed.Any direction the wind comes from make blade rack one end blade oscillating to horizontal position; To vertical position, wind acts on the blade of vertical position and makes the rotation of blade impeller the blade of the blade rack the other end at wind-force effect lower swing; When the blade oscillating of vertical position arrived downwind position, a blade of another blade rack to vertical position, continued the impeller rotation at wind-force effect lower swing.
More than various schemes, though solidity is more many greatly than conventional wind wheel, it is very capable to catch wind, because the blade deadweight makes blade need certain blast by level to vertical variation, therefore particularly under the very low situation of wind speed, starts relatively more difficult.And when blade was big, its quality was also bigger, and in running, when blade rotated to vertical position by horizontal position, speed was big, and inertial collision impacts big, and energy loss is arranged, and noise is big.
Therefore, be necessary that development and Design goes out novel wind motor, littler in the very low situation inertial collision impact of wind speed when making its operation, energy decreases little, and noise is little.
The model utility content
Low in order to overcome the startup wind speed height, the rotor solidity that have blower fan now, power coefficient is little, wind wheel fan blade aerofoil profile and torsion angle are fixing and can not adapt to different wind speed, drive that the rotation needs expend electric power, leaf position adjustment needs expend the rotation of electric drive motor, system complex, can not reliable reset etc. shortcoming, the utility model provides a kind of vertical shaft offset distance formula wind energy conversion system with damping spring.
In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme:
The vertical shaft offset distance formula wind energy conversion system of band damping spring comprises vertical shaft, sharf, lightweight blade, blade weight counterbalance ball, sharf position-limited lever and buffering spring;
Described vertical shaft vertically is installed on the pylon, can rotate freely;
Two isometric sharfs are the horizontal radiation shape and are installed on the vertical shaft mutual vertically, and are rotatably assorted with vertical shaft;
The lightweight blade is installed at the two ends of described sharf respectively, and two lightweight blades on every sharf are vertical mutually;
Described blade weight counterbalance ball is installed on the sharf and near vertical shaft, and blade weight counterbalance ball and lightweight blade are positioned at the relative both sides of sharf;
One end of described sharf position-limited lever is installed on the vertical shaft, and the other end axially stretches out along sharf;
Described damping spring is involute compression damping spring, is installed on the side of sharf position-limited lever external part.
Compared with prior art, the vertical shaft offset distance formula wind energy conversion system of band damping spring of the present utility model has the following advantages:
1. the wind wheel starting wind velocity is little: adopt lightweight blade and blade weight counterbalance ball to cooperate, very faint wind just can make contrary wind lightweight blade be in vertical position and obtain bigger wind-catching surface, so blower fan breeze wind ability is strong, it is little to start wind speed, it is wide to be fit to the area, generator operation time scale height.
2. impact little: because damping spring has been installed, the rigidity contact when spacing becomes elastic buffer and contacts, and its impact is little, noise is low.
Description of drawings
Fig. 1 is the perspective view of the vertical shaft offset distance formula wind energy conversion system of band damping spring.
In the accompanying drawing: 1-sharf position-limited lever; 2-vertical shaft; 3-blade weight counterbalance ball; 4-damping spring; 5-sharf; 6-lightweight blade.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the vertical shaft offset distance formula wind energy conversion system of band damping spring comprises vertical shaft 2, sharf 5, lightweight blade 6, blade weight counterbalance ball 3, sharf position-limited lever 1 and buffering spring 4.
Wherein, vertical shaft 2 vertically is installed on the pylon, can rotate freely.Two isometric sharfs 5 are the horizontal radiation shape and are installed on mutual vertically on the vertical shaft 2, and are rotatably assorted with vertical shaft 2.Lightweight blade 6 is installed at the two ends of sharf 5 respectively, and two the lightweight blades 6 on every sharf 5 are vertical mutually.Blade weight counterbalance ball 3 is installed on the sharf 5 and near vertical shaft 2, and blade weight counterbalance ball 3 and lightweight blade 6 are positioned at the relative both sides of sharf 5.Because blade weight counterbalance ball 3 has been installed, gentle breeze just can make with the wind that lightweight blade 6 is in vertical position, and then obtains bigger wind-catching surface, so blower fan breeze wind ability is strong, starting wind velocity is little, is fit to the area extensively, generator operation time scale height.
One end of sharf position-limited lever 1 is installed on the vertical shaft 2, and the other end axially stretches out along sharf 2, and lightweight blade 6 can only freely be rotated in 0 ~ 90 ° of scope between level and vertical position.Damping spring 4 is installed on the side of sharf position-limited lever 1 external part for involute compression damping spring, makes the rigidity contact of limit site become Elastic Contact.Damping spring 4 is by the coiling of diameter certain rigid steel wire, and spring diameter is changed to the descending involute of an other end diameter gradually continuously by an end, and its coefficient of stiffiness is changed continuously.In order to make blade can both obtain maximum wind-catching surface under wideer wind speed, the axial height of spring is very little; Because damping spring 4 has been installed, the rigidity contact is become the elastic buffer contact, its impact is little, noise is low; Because its coefficient of stiffiness changes continuously, can adapt to wideer wind speed.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (1)
1. the vertical shaft offset distance formula wind energy conversion system of band damping spring is characterized in that: comprise vertical shaft (2), sharf (5), lightweight blade (6), blade weight counterbalance ball (3), sharf position-limited lever (1) and buffering spring (4);
Described vertical shaft (2) vertically is installed on the pylon, can rotate freely;
Two isometric sharfs (5) are the horizontal radiation shape and are installed on mutual vertically on the vertical shaft (2), and are rotatably assorted with vertical shaft (2);
Lightweight blade (6) is installed at the two ends of described sharf (5) respectively, and two the lightweight blades (6) on the every sharf (5) are vertical mutually;
Described blade weight counterbalance ball (3) is installed in that sharf (5) is gone up and near vertical shaft (2), and blade weight counterbalance ball (3) and lightweight blade (6) are positioned at the relative both sides of sharf (5);
One end of described sharf position-limited lever (1) is installed on the vertical shaft (2), and the other end axially stretches out along sharf (2);
Described damping spring (4) is installed on the side of sharf position-limited lever (1) external part for involute compression damping spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320062803 CN203050990U (en) | 2013-02-04 | 2013-02-04 | Vertical shaft offset type wind turbine provided with buffer springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320062803 CN203050990U (en) | 2013-02-04 | 2013-02-04 | Vertical shaft offset type wind turbine provided with buffer springs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050990U true CN203050990U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320062803 Expired - Fee Related CN203050990U (en) | 2013-02-04 | 2013-02-04 | Vertical shaft offset type wind turbine provided with buffer springs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050990U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587462A (en) * | 2014-10-14 | 2016-05-18 | 任孝忠 | Valve type windmill mechanism |
| CN110425080A (en) * | 2019-08-13 | 2019-11-08 | 杭州德飙新能源科技有限公司 | A kind of combined type wind driven generator blade |
-
2013
- 2013-02-04 CN CN 201320062803 patent/CN203050990U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587462A (en) * | 2014-10-14 | 2016-05-18 | 任孝忠 | Valve type windmill mechanism |
| CN110425080A (en) * | 2019-08-13 | 2019-11-08 | 杭州德飙新能源科技有限公司 | A kind of combined type wind driven generator blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130710 Termination date: 20140204 |