CN2937540Y - Brake mechanism of wind-mill generating set - Google Patents
Brake mechanism of wind-mill generating set Download PDFInfo
- Publication number
- CN2937540Y CN2937540Y CNU2007201479822U CN200720147982U CN2937540Y CN 2937540 Y CN2937540 Y CN 2937540Y CN U2007201479822 U CNU2007201479822 U CN U2007201479822U CN 200720147982 U CN200720147982 U CN 200720147982U CN 2937540 Y CN2937540 Y CN 2937540Y
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- China
- Prior art keywords
- control device
- hydraulic cylinder
- brake
- brake block
- size
- 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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- 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
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- Wind Motors (AREA)
Abstract
The utility model discloses a wind driven generator group braking mechanism, which comprises a brake, a brake block, and a hydraulic control device, the hydraulic control device comprises a proportional overflow valve and a hydraulic cylinder, the hydraulic cylinder piston rod is connected with the braking block, the utility model is characterized in that a detection and control device is also comprised, the detection and control device controls the proportional overflow valve current magnitude through detecting the rotation speeds of the wind driven generator group main shafts, the proportional overflow valve control the pressure in the hydraulic cylinder according to the input electric current value. The utility model is not only smooth braking, but also of small mechanical vibration and of small brake blocks wear.
Description
Technical field
The utility model relates to a kind of wind power generating set braking mechanism.
Background technique
The main effect of wind power generating set braking mechanism has two aspects: the one, the fan blade of wind power generating set need be maintained static during overhaul of the equipments, and the 2nd, running into wind-force is to avoid damaging generator set the fan blade of wind power generating set to be maintained static when brute force or typhoon especially.The braking mechanism of prior art is mainly by brake disc, and brake block and hydraulic control device are formed.Brake disc is fixed on the main shaft of group of motors, and brake block is positioned at the both sides of brake disc and is fixed on the frame of wind power generating set, and brake block is controlled by hydraulic control device.When running into wind-force especially when brute force or typhoon; do not damage when not being subjected to because of the overpower generating for the protection wind power generating set; hydraulic control device control brake block; make brake block be clamped at the both sides of brake disc; the main shaft of generator set is not changeed, the fan blade of wind power generating set will be maintained static thereby make at this moment.Whole active forces all is added on the brake block in above-mentioned whole brake process, this makes big, the brake block quick abrasion of mechanical vibration always, and high-lift operation to change brake block be one of thing troubling during wind energy turbine set is safeguarded.
The model utility content
The technical problems to be solved in the utility model provides a kind of wind power generating set braking mechanism, and it is steadily brake not only, and mechanical vibration are little, the brake block wearing and tearing are little.
For solving the problems of the technologies described above, a kind of wind power generating set braking mechanism that the utility model provides, it contains brake disc, brake block and hydraulic control device, hydraulic control device contains proportional pressure control valve and oil hydraulic cylinder, and the piston rod and the brake block of oil hydraulic cylinder link, and also contain detection control apparatus, the size that inspection side control gear comes control ratio relief valve input current by the rotating speed that detects wind driven generation set main shaft, proportional pressure control valve is according to the size of the size control oil hydraulic cylinder internal pressure of input current.
Because the employing detection control apparatus detects the rotating speed of wind driven generation set main shaft, the size of coming control ratio relief valve input current, and proportional pressure control valve is according to the size of the size control oil hydraulic cylinder internal pressure of input current.Thereby brake block is changed the active force of the brake disc rotation speed change with wind driven generation set main shaft, and it is steadily brake not only, and mechanical vibration are little, the brake block wearing and tearing are little.
Description of drawings
Fig. 1 is the brake disc and the brake block mounting structure schematic representation of the utility model wind power generating set braking mechanism.
Fig. 2 hydraulic control device schematic representation of the present utility model.
1. generator set among the figure, 2. brake disc, 3. brake block, 4. main shaft, 5. oil hydraulic cylinder, 6. proportional pressure control valve, 7. proportional pressure control valve current input terminal.
Embodiment
Among the figure, brake disc 2 is fixed on the main shaft 4 of group of motors, and brake block 3 is positioned at the both sides of brake disc 2 and is fixed on the frame of wind power generating set 1, and brake block 3 is controlled by hydraulic control device.Hydraulic control device contains proportional pressure control valve 6 and oil hydraulic cylinder 5, the piston rod of oil hydraulic cylinder 5 and brake block 3 link, the utility model also contains detection control apparatus, the size that inspection side control gear comes control ratio relief valve 6 input currents by the rotating speed that detects wind driven generation set main shaft 4, after the rotating speed size of inspection side control gear according to detection wind driven generation set main shaft 4, to current input terminal 7 input currents of control ratio relief valve.Proportional pressure control valve 7 is according to the size of size control oil hydraulic cylinder 5 internal pressures of input current.Thereby the active force that makes 3 pairs of brake discs of brake block changes with the rotation speed change of wind driven generation set main shaft 4.So not only brake is steady, and mechanical vibration are little, the brake block wearing and tearing are little.
Claims (1)
1. wind power generating set braking mechanism, it contains brake disc, brake block and hydraulic control device, hydraulic control device contains proportional pressure control valve and oil hydraulic cylinder, the piston rod and the brake block of oil hydraulic cylinder link, it is characterized in that: also contain detection control apparatus, the size that detection control apparatus comes control ratio relief valve input current by the rotating speed that detects wind driven generation set main shaft, proportional pressure control valve is according to the size of the size control oil hydraulic cylinder internal pressure of input current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201479822U CN2937540Y (en) | 2007-04-29 | 2007-04-29 | Brake mechanism of wind-mill generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201479822U CN2937540Y (en) | 2007-04-29 | 2007-04-29 | Brake mechanism of wind-mill generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937540Y true CN2937540Y (en) | 2007-08-22 |
Family
ID=38361566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201479822U Expired - Fee Related CN2937540Y (en) | 2007-04-29 | 2007-04-29 | Brake mechanism of wind-mill generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937540Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806281A (en) * | 2010-04-28 | 2010-08-18 | 哈尔滨工业大学 | Hydraulic device for spindle brake of wind generating set |
-
2007
- 2007-04-29 CN CNU2007201479822U patent/CN2937540Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806281A (en) * | 2010-04-28 | 2010-08-18 | 哈尔滨工业大学 | Hydraulic device for spindle brake of wind generating set |
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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: 20070822 Termination date: 20140429 |