CN202937414U - Wind driven generator - Google Patents
Wind driven generator Download PDFInfo
- Publication number
- CN202937414U CN202937414U CN2012206733534U CN201220673353U CN202937414U CN 202937414 U CN202937414 U CN 202937414U CN 2012206733534 U CN2012206733534 U CN 2012206733534U CN 201220673353 U CN201220673353 U CN 201220673353U CN 202937414 U CN202937414 U CN 202937414U
- Authority
- CN
- China
- Prior art keywords
- impeller
- main shaft
- disc
- braking
- generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
Landscapes
- Wind Motors (AREA)
Abstract
The utility model discloses a wind driven generator. The wind driven generator comprises an impeller, an impeller braking disc, a main shaft, a motor shaft, a generator rotor, a generator stator, and a shell body, wherein the generator rotor and the generator stator are arranged inside the shell body, the main shaft is fixed on a rear end cover of the generator stator, the motor shaft is sleeved on the main shaft and can rotate around the main shaft, an impeller hub is fixed with the impeller braking disc and is arranged on the motor shaft through bolts, the front end of the main shaft is connected with a front braking disc through bolts, the front braking disc can move back and forth along the main shaft, a reset spring is sleeved on the main shaft between the front braking disc and the impeller braking disc, and a choke disc is fixed on the front braking disc. Compared with the prior art, the wind driven generator has the advantages of being simple in mechanism, low in cost, and reliable in operation. A braking mechanism is arranged outside, so that a heat dissipation problem does not need to be considered. The choke disc is arranged in front of the impeller, low pressure and wake flows produced by impeller rotation cannot influence the choke disc, braking process is only in direct relationship with wind speed, so that the braking performance is safe and reliable.
Description
Technical field
The utility model relates to a kind of wind-driven generator.
Background technique
Wind-driven generator requires to stop operating reliably during greater than certain wind speed at wind speed.Present small-sized wind power generator is mainly by modes such as blade stall protection, tail vane driftage protection, electromagnetic braking protection and integrated protections, limit wind-driven generator under strong wind rotating speed or allow its stall.But these modes all can not reach the requirement of high reliability.
Summary of the invention
The purpose of this utility model just is to provide a kind of simple in structure, wind-driven generator that Safety performance is high.
wind-driven generator of the present utility model, comprise impeller, the impeller brake disc, main shaft, motor shaft, generator amature, generator unit stator, housing, generator amature and generator unit stator are arranged in housing, main shaft is fixed on the stator rear end cover of generator, motor shaft sleeve is on main shaft, can rotate around the spindle, impeller hub and impeller brake disc are fixed, and be arranged on motor shaft by key, front-end of spindle is connected with the front brake hull by key, the front brake hull can move forward and backward along main shaft, on main shaft between front brake hull and impeller brake disc, cover has Returnning spring, the choke dish is fixed on the front brake hull.
During the work of wind-driven generator of the present utility model, when rated speed was following, blast was less when wind speed, and Returnning spring pushes away the impeller brake disc with front brake hull and choke dish, and braking mechanism is inoperative, and blower fan normally moves.When wind speed surpasses the blower fan rated wind speed, but during less than the blower fan cut-out wind speed, the suffered blast of choke dish increases, promoting the front brake hull moves backward, contact with the impeller brake disc, the impeller brake disc is subjected to the surface friction drag effect of front brake hull, with the raising of restriction wheel speed.When wind speed surpasses the blower fan cut-out wind speed, the suffered blast of choke dish will promote front brake hull and impeller brake disc close contact, with the braking of impeller brake disc, and blower fan stall, thereby the safety of protection blower fan in strong wind.After wind speed reduced, the suffered blast of choke dish reduced, and Returnning spring is pushed front brake hull and impeller brake disc open, and blower fan restarts work.
Wind-driven generator of the present utility model compared with prior art has following characteristics: mechanism is simple, cost is low, reliable; Braking mechanism is external, does not need to consider heat dissipation problem; In the impeller front, be not subjected to the low pressure of vane rotary generation and the impact of wake flow due to the choke dish, braking process is only directly related with wind speed, so braking ability is safe and reliable.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
a kind of wind-driven generator, comprise impeller 4, impeller brake disc 5, main shaft 6, motor shaft 7, generator amature 8, generator unit stator 9, housing 10, generator amature 8 is arranged in housing 10 with generator unit stator 9, main shaft 6 is fixed on generator unit stator 9 rear end covers, motor shaft 7 is enclosed within on main shaft 6, can be around main shaft 6 rotations, impeller hub 11 and impeller brake disc 5 are fixing, and be arranged on motor shaft 7 by key, main shaft 6 front ends are connected with front brake hull 2 by key, front brake hull 2 can move forward and backward along main shaft 6, on main shaft 6 between front brake hull 2 and impeller brake disc 5, cover has Returnning spring 3, choke dish 1 is fixed on front brake hull 2.
Claims (1)
1. wind-driven generator, comprise impeller (4), impeller brake disc (5), main shaft (6), motor shaft (7), generator amature (8), generator unit stator (9), housing (10), generator amature (8) is arranged in housing (10) with generator unit stator (9), main shaft (6) is fixed on generator unit stator (9) rear end cover, motor shaft (7) is enclosed within on main shaft (6), it is characterized in that: impeller hub (11) and impeller brake disc (5) are fixing, and be arranged on motor shaft (7) by key, main shaft (6) front end is connected with front brake hull (2) by key, the upper cover of main shaft (6) between front brake hull (2) and impeller brake disc (5) has Returnning spring (3), choke dish (1) is fixed on front brake hull (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206733534U CN202937414U (en) | 2012-12-10 | 2012-12-10 | Wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206733534U CN202937414U (en) | 2012-12-10 | 2012-12-10 | Wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937414U true CN202937414U (en) | 2013-05-15 |
Family
ID=48321657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206733534U Expired - Fee Related CN202937414U (en) | 2012-12-10 | 2012-12-10 | Wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966493A (en) * | 2012-12-10 | 2013-03-13 | 武汉科技大学 | Wind power generator |
-
2012
- 2012-12-10 CN CN2012206733534U patent/CN202937414U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966493A (en) * | 2012-12-10 | 2013-03-13 | 武汉科技大学 | Wind power generator |
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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: 20130515 Termination date: 20131210 |