CN202475129U - Speed limiting device for wind driven generator - Google Patents
Speed limiting device for wind driven generator Download PDFInfo
- Publication number
- CN202475129U CN202475129U CN2011205551765U CN201120555176U CN202475129U CN 202475129 U CN202475129 U CN 202475129U CN 2011205551765 U CN2011205551765 U CN 2011205551765U CN 201120555176 U CN201120555176 U CN 201120555176U CN 202475129 U CN202475129 U CN 202475129U
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- generator
- driven generator
- limiting device
- wind
- speed
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Abstract
The utility model relates to a speed limiting device for a wind driven generator, comprising a central disk and a friction drum, wherein the central disk is arranged on a rotor spindle of a generator; the friction drum is connected with a generator housing; the friction drum is cylindrical; the inner surface of the friction drum is a friction surface; the central disk is arranged in an inner cavity of the friction drum; at least two guide grooves are arranged on the central disk; a slider is arranged in each guide groove; the outer side surface along the peripheral direction of the slider is provided with a friction sheet; one end of a tension spring is connected with the slider; and the other end of the tension spring is connected with the guide groove. The speed limiting device for a wind driven generator has the advantages of being simple and practical, being low in cost, being able to limit the rotating speed of the generator so as to effectively protect the generator, improving the work safety for the wind driven generator, and prolonging the service life of the wind driven generator.
Description
Technical field
The utility model belongs to electrical equipment technical field, is specifically related to a kind of speed-limiting device of wind-driven generator.
Background technology
In recent years because the promotion of China's rapid economy development and government's " every township will have electricity " project; At present in the pasture, mountain area, island and other outlying power-shortage area; The small-sized household wind-driven generator is popularized with fast speeds, has solved the problem of these regional power shortages preferably.
Above-mentioned power-shortage area has a common characteristic, be exactly wind resource than horn of plenty, employed wind-driven generator basically all is between 500W-2000W.Owing to use the regional economy of wind-driven generator backward relatively, so the user has relatively high expectations to the ratio of performance to price of generator.Promptly both required generator durable in use, and price is low.In every case the abundant area of wind resource, though highly beneficial to generator work, right such operational environment often makes generator speed too fast, and the too fast consequence of rotating speed be make generator the moving component wearing and tearing accelerate, thereby shortened the useful life of generator.At present; The common practice of domestic wind-driven generator manufacturer is: when the rotating speed of generator surpasses a times of rated speed; The output of generator is unloaded on the high-power resistance about 1 ohm, reaches the purpose that generator slows down like this with the load that strengthens generator.And the way of this deceleration often makes generator windings because of the overload aggravation of generating heat, and the heating aggravation will make motor windings burn out at last, and this situation just exerts a certain influence to useful life of wind-driven generator reaching further to promote the use of all.
The utility model content
The utility model has overcome deficiency of the prior art, and a kind of wind-driven generator speed-limiting device that can improve the fail safe of wind-driven generator and increase the service life is provided.
The concrete technical scheme of the utility model is following:
A kind of wind-driven generator speed-limiting device comprises spider and friction cylinder, and spider is set on the armature spindle of generator, and friction cylinder is connected with the generator case, and friction cylinder is that cylindric, its inner surface is a rubbing surface, and spider is located in the inner chamber of friction cylinder; Said spider is provided with at least two gathering sills, is provided with slide block in the gathering sill, and slide block lateral surface along the circumferential direction is provided with friction plate, and an end of tension spring is connected with slide block, the other end is connected with gathering sill.
As improvement, said spider is connected with the armature spindle of generator through connector.
As improvement, said gathering sill comprises 3, along the circumferential direction evenly is provided with; Gathering sill along the circumferential direction evenly is provided with, and spider is more steady during with rotor rotation, produces vibrations in the time of can not making motor rotation because of rotation imbalance.
As improvement, said gathering sill is the fan annular.
When using above-mentioned wind-driven generator; Because spider is set on the armature spindle of generator, spider is along with armature spindle rotates together, when wind speed is lower than 8 grades; Be that wind speed is during less than 20 meter per seconds; The rotating speed of generator is lower than 750 rev/mins, and the centrifugal force that this moment, generator operation produced slide block is not enough to overcome the pulling force of tension spring, so speed-limiting device is not worked; When wind speed reached 9 grades (being that wind speed is greater than 24 meter per seconds), generator speed was greater than 800 rev/mins, was fixed on speed-limiting device on the generator rotor shaft this moment under its action of centrifugal force; Make slide block begin to overcome the pulling force of tension spring; Moved from inside to outside by gathering sill, along with the rotating speed of generator further increases, then the suffered centrifugal force of slide block further strengthens; The ambassador's slide block that adds of centrifugal force further produces the friction plate that displacement makes the slide block lateral surface at last and contacts with the inner surface of friction cylinder; Thereby the frictional resistance of rotor is strengthened, force the rotating speed of generator to descend, thereby reach the purpose of generator speed limit.
The speed-limiting device of the utility model, simple and practical, cost is low, can be used for limiting the rotating speed of generator, thereby reaches the purpose of effective protection generator, improved wind-driven generator job security, prolonged useful life of wind-driven generator.
Description of drawings
Fig. 1 is the structural representation of wind-driven generator;
Fig. 2 is the cutaway view of A-A direction speed-limiting device and generator case among Fig. 1.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, wind-driven generator 1 is provided with generator case 5, and friction cylinder 4 is connected with generator case 5 through screw; Friction cylinder 4 is cylindric, and its inner surface is a rubbing surface, and spider 2 is located in the inner chamber of friction cylinder 4; Spider 2 is provided with fixed muffle 6; Fixed muffle 6 is enclosed within on the armature spindle 3 of generator 1, and connector is fixing with the armature spindle 3 of generator 1 with fixed muffle 6, and said connector can be a bolt.
3 annular gathering sills 7 of fan along the circumferential direction evenly are set on the spider 2; The number of gathering sill 7 can be decided as circumstances require, and is generally speaking, identical with the number of blade; And it is parallel with blade; Each gathering sill is provided with slide block 10, and slide block 10 lateral surface along the circumferential direction is provided with friction plate 8, and an end of tension spring 9 is connected with slide block 10, the other end is connected with gathering sill 7.
When using above-mentioned wind-driven generator; Because spider is set on the armature spindle of generator, spider is along with armature spindle rotates together, when wind speed is lower than 8 grades; Be that wind speed is during less than 20 meter per seconds; The rotating speed of generator is lower than 750 rev/mins, and the centrifugal force that this moment, generator operation produced slide block is not enough to overcome the pulling force of tension spring, so speed-limiting device is not worked; When wind speed reached 9 grades (being that wind speed is greater than 24 meter per seconds), generator speed was greater than 800 rev/mins, was fixed on speed-limiting device on the generator rotor shaft this moment under its action of centrifugal force; Make slide block begin to overcome the pulling force of tension spring; Moved from inside to outside by gathering sill, along with the rotating speed of generator further increases, then the suffered centrifugal force of slide block further strengthens; The ambassador's slide block that adds of centrifugal force further produces the friction plate that displacement makes the slide block lateral surface at last and contacts with the inner surface of friction cylinder; Thereby the frictional resistance of rotor is strengthened, force the rotating speed of generator to descend, thereby reach the purpose of generator speed limit.
The utility model is particularly useful for small-sized wind power generator.
Certainly, more than only be the concrete exemplary applications of the utility model, the protection range of the utility model is not constituted any limitation.Except that the foregoing description, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the utility model scope required for protection.
Claims (4)
1. wind-driven generator speed-limiting device; It is characterized in that comprising spider and friction cylinder, spider is set on the armature spindle of generator, and friction cylinder is connected with the generator case; Friction cylinder is that cylindric, its inner surface is a rubbing surface, and spider is located in the inner chamber of friction cylinder; Said spider is provided with at least two gathering sills, is provided with slide block in the gathering sill, and slide block lateral surface along the circumferential direction is provided with friction plate, and an end of tension spring is connected with slide block, the other end is connected with gathering sill.
2. wind-driven generator speed-limiting device according to claim 1 is characterized in that said spider is connected with the armature spindle of generator through connector.
3. wind-driven generator speed-limiting device according to claim 1 is characterized in that said gathering sill comprises 3, along the circumferential direction evenly is provided with.
4. according to the described wind-driven generator speed-limiting device of above-mentioned arbitrary claim, it is characterized in that said gathering sill is the fan annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205551765U CN202475129U (en) | 2011-12-28 | 2011-12-28 | Speed limiting device for wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205551765U CN202475129U (en) | 2011-12-28 | 2011-12-28 | Speed limiting device for wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475129U true CN202475129U (en) | 2012-10-03 |
Family
ID=46923252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205551765U Expired - Fee Related CN202475129U (en) | 2011-12-28 | 2011-12-28 | Speed limiting device for wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202475129U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767835A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Wheelchair with warm keeping protective bands |
| CN103767837A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Multifunctional wheelchair |
| CN103767836A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Wheelchair with portable desk |
| CN104224460A (en) * | 2014-09-25 | 2014-12-24 | 河南科技大学第一附属医院 | Multifunctional wheelchair |
| CN104485776A (en) * | 2014-12-28 | 2015-04-01 | 武汉联创恒业科技有限公司 | Automatic speed limiting motor and crane |
| CN106989121A (en) * | 2017-05-05 | 2017-07-28 | 沈阳建筑大学 | It is mechanical to rotate limiter of speed |
| CN107485860A (en) * | 2017-09-14 | 2017-12-19 | 华东游乐设备有限公司 | A kind of safe rotation swivel chair |
| CN109869272A (en) * | 2019-04-22 | 2019-06-11 | 杭州奇伶服饰有限公司 | A kind of wind-driven generator equipment |
| CN110748602A (en) * | 2019-11-06 | 2020-02-04 | 西南石油大学 | Two-stage centrifugal type energy storage flywheel with variable rotational inertia |
| CN112078384A (en) * | 2020-10-15 | 2020-12-15 | 仙居夏朗新能源科技有限公司 | New national standard electric vehicle motor power auxiliary device |
| CN112523956A (en) * | 2020-11-26 | 2021-03-19 | 诸暨和创电机科技有限公司 | Permanent magnet wind driven generator with overload protection function |
| CN114198484A (en) * | 2021-11-19 | 2022-03-18 | 荆成 | Worm gear speed reducer |
-
2011
- 2011-12-28 CN CN2011205551765U patent/CN202475129U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767835B (en) * | 2014-01-10 | 2016-01-20 | 河南科技大学第一附属医院 | A kind of wheelchair with warming protecting band |
| CN103767837A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Multifunctional wheelchair |
| CN103767836A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Wheelchair with portable desk |
| CN103767835A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Wheelchair with warm keeping protective bands |
| CN103767836B (en) * | 2014-01-10 | 2015-11-18 | 河南科技大学第一附属医院 | A kind of wheelchair with portable desk |
| CN103767837B (en) * | 2014-01-10 | 2015-11-18 | 河南科技大学第一附属医院 | A kind of multifunctional wheelchair |
| CN104224460A (en) * | 2014-09-25 | 2014-12-24 | 河南科技大学第一附属医院 | Multifunctional wheelchair |
| CN104485776B (en) * | 2014-12-28 | 2016-09-14 | 武汉联创恒业科技有限公司 | Automatic speed-limiting motor and crane |
| CN104485776A (en) * | 2014-12-28 | 2015-04-01 | 武汉联创恒业科技有限公司 | Automatic speed limiting motor and crane |
| CN106989121A (en) * | 2017-05-05 | 2017-07-28 | 沈阳建筑大学 | It is mechanical to rotate limiter of speed |
| CN107485860A (en) * | 2017-09-14 | 2017-12-19 | 华东游乐设备有限公司 | A kind of safe rotation swivel chair |
| CN107485860B (en) * | 2017-09-14 | 2023-04-07 | 华东游乐设备有限公司 | Safe self-rotating swivel chair |
| CN109869272A (en) * | 2019-04-22 | 2019-06-11 | 杭州奇伶服饰有限公司 | A kind of wind-driven generator equipment |
| CN110748602A (en) * | 2019-11-06 | 2020-02-04 | 西南石油大学 | Two-stage centrifugal type energy storage flywheel with variable rotational inertia |
| CN112078384A (en) * | 2020-10-15 | 2020-12-15 | 仙居夏朗新能源科技有限公司 | New national standard electric vehicle motor power auxiliary device |
| CN112523956A (en) * | 2020-11-26 | 2021-03-19 | 诸暨和创电机科技有限公司 | Permanent magnet wind driven generator with overload protection function |
| CN112523956B (en) * | 2020-11-26 | 2021-08-27 | 诸暨和创电机科技有限公司 | Permanent magnet wind driven generator with overload protection function |
| CN114198484A (en) * | 2021-11-19 | 2022-03-18 | 荆成 | Worm gear speed reducer |
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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: 20121003 Termination date: 20121228 |