CN101413559B - Yawing brake block - Google Patents
Yawing brake block Download PDFInfo
- Publication number
- CN101413559B CN101413559B CN2008100689682A CN200810068968A CN101413559B CN 101413559 B CN101413559 B CN 101413559B CN 2008100689682 A CN2008100689682 A CN 2008100689682A CN 200810068968 A CN200810068968 A CN 200810068968A CN 101413559 B CN101413559 B CN 101413559B
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- China
- Prior art keywords
- blades
- driven generator
- yaw
- wind
- brake
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- 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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Abstract
In the process of power generation by a wind driven generator, the direction of blades needs to be adjusted due to the wind direction, the blades of the wind driven generator is fixedly oriented to the direction with the maximum wind force, thus ensuring the working continuity of the wind driven generator. The direction of the blades of the wind driven generator is adjusted by adjusting a yaw brake disc; when the yaw brake disc does not need adjustment, the yaw brake disc can not rotate under the vertically symmetrical compression action of brake blades of a yaw brake, when the direction of the blades of the wind driven generator needs adjustment, a yaw system of the wind driven generator causes the brake blades to leave the yaw brake disc, causes the blades to turn to the direction with the maximum wind force along with the yaw brake disc, and then causes the brake blades to fully act on the brake disc, and the blades keep still in the direction with the maximum wind force. The yaw brake blades provided by the invention have the advantages of good mechanical strength, little wearing capacity, stable friction performance, long service life and the like, and the brake blades have comparatively high static friction torque and can fully ensure the yaw brake requirement of the wind driven generator.
Description
Technical field
The present invention relates to wind-driven generator braking system, particularly a kind of Yaw brake block.
Background technique
Wind energy has more and more received the attention of various countries as clear energy sources, and along with the development of technological progress and environmental protection cause, wind energy power will can be competed with thermal power generation commercial fully.No matter be wind-powered electricity generation Industrial economic benefit, social benefit, or various countries sustainable development and the energy-conservation strategy followed at present, these all provide very big development space for the wind energy power industry.
In the wind turbine power generation process, need adjust the direction of blade because of the change of wind-force direction, with the vanes fixed of wind-driven generator towards the maximum direction of wind-force, thereby guarantee the maximizing efficiency of wind-driven generator work.The direction of adjustment blade of wind-driven generator is by the realization of adjustment driftage brake disc, and is as shown in Figure 3, under the situation that need not adjust driftage brake disc 4; Driftage brake disc 4 is under the brake block effect that symmetry compresses about in the of 3 of driftage brake; Can not rotate, when rotating driftage brake disc 4 when needs adjustment blade of wind-driven generator direction, the yaw system of wind-driven generator inside reduces the pressure of piston 5; Make brake block leave the driftage brake disc; Make blade along with the driftage brake disc goes to towards the maximum direction of wind-force, then the full pressure of brake block is acted on the brake disc, blade is along with brake disc is locked on the maximum direction of wind-force.In said process, require brake block to have characteristics such as mechanical strength height, static friction torque is high, wearing and tearing are little.
Summary of the invention
The technical problem that solves
To the driftage braking requirement of above-mentioned wind-driven generator, the present invention provides that a kind of Yaw brake block has that mechanical strength is good, wear extent is little, stable friction performance, good thermal stability, good heat conductivity and static moment advantages of higher.
Technological scheme
Since wind-driven generator Environmental Conditions may by the sea or on the Gobi desert, its working environment is high-temperature, high salinity, high humility and high dust often, the present invention is employed in the powdered metallurgical material that does not influence the special formulation of frictional behaviour under the above-mentioned environment.
Yaw brake block of the present invention is achieved in that as depicted in figs. 1 and 2; The brake pad 1 that will form according to the powdered metallurgical material compacting of certain proportioning forms the brake block blank as friction piece pressure sintering on steel backing 2, promptly can be made into Yaw brake block of the present invention through simple machining processes again.
The material prescription weight percentage ranges of the brake pad 1 of said Yaw brake block is:
Iron powder 50～75, copper powder 5～18, graphite 3～25, silica sand 5～20, silicon carbide 1～10, molybdenum disulfide 1～10, glass putty 2～12.
The weight percentage ranges of the material prescription of the brake pad 1 of Yaw brake block can be preferably:
Iron powder 60～70, copper powder 10～15, graphite 5～15, silica sand 5～15, silicon carbide 3～8, molybdenum disulfide 3～8, glass putty 2～10.
The weight percentage of the material optimization formula of the brake pad 1 of Yaw brake block is:
Iron powder 55, copper powder 13, graphite 11, silica sand 6, silicon carbide 4, molybdenum disulfide 3, glass putty 8.
Promptly can be made into Yaw brake block by above-mentioned prescription and existing technological method, be used for the wind driven generator yaw braking system.
Beneficial effect
Yaw brake block provided by the invention has good, the advantages such as wear extent is little, stable friction performance, long service life of mechanical strength, and higher static friction torque is arranged, and can fully guarantee the driftage brake request of wind-driven generator.
Description of drawings
Fig. 1 is a Yaw brake block schematic representation of the present invention.
Fig. 2 is a Yaw brake block plan view of the present invention.
Fig. 3 is a wind driven generator yaw braking schematic representation.
Embodiment
Yaw brake block provided by the invention is achieved in that as depicted in figs. 1 and 2, and brake pad 1 pressure sintering that will form according to the powdered metallurgical material compacting of certain proportioning forms the brake block blank on steel backing 2.
Material prescription that brake pad 1 adopts and weight percent content can be following table one of prescription arbitrarily:
| Iron powder | Copper powder | Graphite | Silica sand | Silicon carbide | Molybdenum disulfide | | |
| Prescription | |||||||
| 1 | 65 | 16 | 5 | 5 | 2 | 3 | 4 |
| |
55 | 13 | 11 | 6 | 4 | 3 | 8 |
| |
52 | 10 | 8 | 10 | 7 | 7 | 6 |
Adopt existing powder metallurgical technique method when making brake block 1: it is matrix that friction material adopts copper, iron; Add graphite and tin as lubricant component; Silicon carbide, silica sand are as the friction constituent element; Molybdenum disulfide is processed blank as strengthening constituent element through existing operations such as batching, compacting, sintering, machinings.Yaw brake block blank behind the sintering is through simple machining, the rubbing surface chamfering that contacts with the driftage brake disc like deburring, polishing and with brake block etc., and lacquer varnish and enamel paint can obtain Yaw brake block as depicted in figs. 1 and 2 at last.
Claims (5)
1. a Yaw brake block is made up of steel backing (1) and brake pad (2), it is characterized in that the weight percentage ranges of brake pad material prescription is:
Iron powder 50～75, copper powder 5～18, graphite 3～25, silica sand 5～20, silicon carbide 1～10, molybdenum disulfide 1～10, glass putty 2～12.
2. Yaw brake block according to claim 1 is characterized in that the weight percentage ranges of brake pad material optimization formula is:
Iron powder 60～70, copper powder 10～15, graphite 5～15, silica sand 5～15, silicon carbide 3～8, molybdenum disulfide 3～8, glass putty 2～10.
3. Yaw brake block according to claim 1 is characterized in that the weight percentage of brake pad material optimization formula is:
Iron powder 55, copper powder 13, graphite 11, silica sand 6, silicon carbide 4, molybdenum disulfide 3, glass putty 8.
4. Yaw brake block according to claim 1 is characterized in that the weight percentage of brake pad material optimization formula is:
Iron powder 65, copper powder 16, graphite 5, silica sand 5, silicon carbide 2, molybdenum disulfide 3, glass putty 4.
5. Yaw brake block according to claim 1 is characterized in that the weight percentage of brake pad material optimization formula is:
Iron powder 52, copper powder 10, graphite 8, silica sand 10, silicon carbide 7, molybdenum disulfide 7, glass putty 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100689682A CN101413559B (en) | 2008-10-31 | 2008-10-31 | Yawing brake block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100689682A CN101413559B (en) | 2008-10-31 | 2008-10-31 | Yawing brake block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101413559A CN101413559A (en) | 2009-04-22 |
| CN101413559B true CN101413559B (en) | 2012-10-31 |
Family
ID=40594231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100689682A Expired - Fee Related CN101413559B (en) | 2008-10-31 | 2008-10-31 | Yawing brake block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101413559B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571173B (en) * | 2009-06-16 | 2011-01-05 | 博深工具股份有限公司 | Brake block for high-speed train and preparation method thereof |
| CN101799053B (en) * | 2009-10-12 | 2011-06-29 | 中南大学 | Metal-based yaw brake block for wind-powdered generator and manufacture method thereof |
| CN101769353B (en) * | 2010-02-09 | 2012-11-14 | 衡水众成摩擦材料有限公司 | Yaw brake block and preparation method thereof |
| CN107286570B (en) * | 2017-06-20 | 2018-05-29 | 方达能源集团有限公司 | Yaw brake block and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032195A (en) * | 1987-09-19 | 1989-04-05 | 北京摩擦材料厂 | A kind of friction plate and manufacture method thereof |
| US6648991B2 (en) * | 2001-03-13 | 2003-11-18 | Siderca S.A.I.C. | Low-alloy carbon steel for the manufacture of pipes for exploration and the production of oil and/or gas having an improved corrosion resistance, a process for the manufacture of seamless pipes, and the seamless pipes obtained therefrom |
-
2008
- 2008-10-31 CN CN2008100689682A patent/CN101413559B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032195A (en) * | 1987-09-19 | 1989-04-05 | 北京摩擦材料厂 | A kind of friction plate and manufacture method thereof |
| US6648991B2 (en) * | 2001-03-13 | 2003-11-18 | Siderca S.A.I.C. | Low-alloy carbon steel for the manufacture of pipes for exploration and the production of oil and/or gas having an improved corrosion resistance, a process for the manufacture of seamless pipes, and the seamless pipes obtained therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101413559A (en) | 2009-04-22 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20151031 |
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| EXPY | Termination of patent right or utility model |