CN103148135A - Yaw brake used for diaphragm-type wind generator set - Google Patents
Yaw brake used for diaphragm-type wind generator set Download PDFInfo
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- CN103148135A CN103148135A CN2013100671105A CN201310067110A CN103148135A CN 103148135 A CN103148135 A CN 103148135A CN 2013100671105 A CN2013100671105 A CN 2013100671105A CN 201310067110 A CN201310067110 A CN 201310067110A CN 103148135 A CN103148135 A CN 103148135A
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- barrier film
- diaphragm
- upper cover
- break
- brake
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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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Abstract
A yaw brake used for a diaphragm-type wind generator set comprises a brake upper cover 1, bolts 2, a diaphragm 3, a cylinder body 4, a plunger piston 5, a lower end plate 6, a damping spring 7, a spring seat 8, a push rod 9 and a braking shoe 10, and is characterized in that the diaphragm 3 is arranged between the lower surface of the brake upper cover 1 and the upper end surface of the cylinder body 4, the lower surface of the diaphragm 3 is supported on the upper end surface of the plunger piston 5; a short stroke is needed during the working process of a brake cylinder, so that the elasticity deformation of the diaphragm 3 can meet the use requirement; high-pressure hydraulic oil is enclosed between the inner surface of the brake upper cover 1 and the upper surface of the diaphragm 3, so that possible leakage of the high-pressure hydraulic oil during the braking process of a cabin is effectively prevented; when a main control room sends out a command that the cabin needs yawing, return oil circulates in the enclosed elastic space between the lower end surface of the brake upper cover 1 and the upper end surface of the diaphragm 3; and damping force of the brake is provided by the damping spring 7.
Description
One, technical field:
The present invention relates to a kind of wind power generating set off-course brake of diaphragm type.
Two, background technique:
The mankind are in order to restructure the use of energy, and wind generating technology is development rapidly.Along with the development of this technology, in order to improve the generating efficiency of wind power generating set, hydraulic transmission and control system are widely used in the control of impeller driftage.
In the driftage of existing impeller is controlled, be mainly the stable braking that will guarantee when wind-driven generator work the cabin, and the stable damping force of when the impeller yawing rotation, the cabin being rotated, guarantee the rotation of calming down in cabin.
For this reason, people have adopted the caliper brake of hydraulic control to satisfy its usage requirement.In this class hydraulic braking sytem of prior art, because the floating bearing that connects cabin and tower cylinder has certain gap, and this gap can be strengthened along with the unit operation time lengthening.Also there is unbalance loading in cabin self in addition.Due to the existence in gap, by moving in quiet braking process, because the motion of break oil cylinder is asynchronous and the imbalance of cabin load, can make the inner ring of floating bearing relatively produce in its outer ring in the cabin; The inner ring of floating bearing its outer ring generation relatively is tilted in braking process and can produces horizontal active force to the plunger of brake cylinder.The plunger two ends of break and cylinder body produce violent side friction under the effect of this active force, this larger side-friction makes the plunger of brake cylinder produce shake and creep when motion, the internal surface of wearing and tearing or plucking break oil cylinder, and then the sealing between damage plunger and cylinder body, cause the leakage of oil of master cylinder and the long-term dynamics pressurize operation of hydraulic control system, make the temperature of hydraulic power unit raise.The direct result of this state is exactly: braking moment is unstable, and master cylinder leaks seriously, has polluted the environment of safeguarding of main frame.
In addition, the increase that leaks makes the wind field attendant often will shut down maintenance and it is changed, and has seriously had influence on the generating efficiency of wind field and the safe operation of blower fan.
Three, summary of the invention:
Purpose of the present invention be exactly to develop a kind of cost approach, simple and reliable, can effectively prevent the master cylinder of seepage at run duration with off-course brake for wind power generating set.
Break of the present invention is by break upper cover 1, bolt 2, and barrier film 3, cylinder body 4, plunger 5, lower end sheet 6, damping spring 7, spring seat 8, push rod 9 and braking tellurium sheet 10 are formed by combining.It is characterized in that: be provided with barrier film 3 high voltage bearing, that made by macromolecular material between the upper end of the lower surface of break upper cover 1 and cylinder body 4, barrier film 3 is removed and is contacted outer lower plane with the upper end of cylinder body 4 and ride on the upper end of plunger 5.Plunger 5 section on the lower has a hollow circular hole, and damping spring 7 is housed in the hole; The lower end of damping spring 7 is located by spring seat 8 axially support, and spring seat 8 is sleeved in the endoporus of plunger 5 lower ends; The bottom of spring seat 8 is sphere, and the upper end of the push rod 9 that coordinates with it is also the sphere that size coordinates with it.
Because stroke required in this master cylinder working procedure is very little, in braking process, high pressure oil acts on the upper surface of barrier film 3, and acts on plunger 5 upper surfaces, promotes it and moves down compression braking tellurium sheet 10, and the cabin is braked; In this very little stroke, the elastic deformation energy of barrier film 3 satisfies usage requirement, during braking, high-pressure and hydraulic oil is enclosed between the upper surface of the internal surface of break upper cover 1 and barrier film 3, has effectively prevented the seepage that the high pressure liquid force feed may occur in the braking process in cabin.
When master-control room sends the instruction cabin need to go off course the time, the logical oil return in sealed elastic space that the upper surface of the lower end surface of break upper cover 1 and barrier film 3 forms, the unable effect in upper plane of plunger 5, the damping of break is provided by damping spring 7, this moment, the cabin was under the driving of yaw motor, while, under the friction torque effect of damping spring 7, when being turned back to reposefully the position of appointment, running under braking was generated electricity again again.
The present invention also can remove damping spring 7, and brake cylinder fills low-pressure hydraulic oil in the damping in when driftage is comprised of the upper surface toward the lower end surface of break upper cover 1 and barrier film 3 sealed elastic space realizes, its pressure is regulated by the low pressure backpressure overflow valve.
Further also can keep damping spring 7, brake cylinder lower hydraulic oil and spring force of pressurising power in the damping in when driftage is comprised of the upper surface toward the lower end surface of break upper cover 1 and barrier film 3 sealed elastic space make up to realize, its pressure is regulated by the low pressure backpressure overflow valve.
The present invention utilizes the resiliently deformable of barrier film 3, with high pressure oil sealing in resilient confined space, the effect that plunger 5 directly is not subject to high pressure oil at work with contact with high pressure oil, avoided the seepage generation of hydraulic oil.The normal operation of assurance wind power generating set and the working environment of generating efficiency and main frame be not by oil pollution.
Four, description of drawings:
Accompanying drawing 1 is structure principle chart of the present invention.
Five, embodiment:
The specific embodiment of the present invention is: when wind power generating set is normally moved, the upper surface of the lower end surface of break upper cover 1 of the present invention and barrier film 3 forms sealed elastic has been full of the high pressure liquid force feed in the space, the resiliently deformable that the high pressure liquid force feed is utilized barrier film 3 with its thrust on the upper plane of plunger 5, plunger 5 presses the top sphere of push rod 9 by spring seat 8, braking tellurium sheet 10 is close on the upper surface of floating bearing inner ring, the friction torque that produces has been locked the outer ring of floating bearing firmly, has kept the cabin constant on the seat of appointment.
When master-control room sends the instruction cabin need to go off course the time, the logical oil return in sealed elastic space that the upper surface of the lower end surface of break upper cover 1 and barrier film 3 forms, the unable effect in upper plane of plunger 5, the damping of break is provided by damping spring 7, this moment, the cabin was under the driving of yaw motor, while, under the friction torque effect of damping spring 7, when being turned back to reposefully the position of appointment, running under braking was generated electricity again again.
Claims (3)
1. diaphragm type wind power generating set off-course brake, by break upper cover (1), bolt (2), barrier film (3), cylinder body (4), plunger (5), lower end sheet (6), damping spring (7), spring seat (8), push rod (9) and braking tellurium sheet (10) are formed by combining; It is characterized in that: be provided with barrier film (3) between the upper end of the lower surface of break upper cover (1) and cylinder body (4), barrier film (3) is removed and is contacted outer lower plane with the upper end of cylinder body (4) and ride on the upper end of plunger (5); One hollow circular hole is arranged at the bottom of plunger (5), and damping spring (7) is housed in the hole; The lower end of damping spring (7) is by spring seat (8) axially support location, and spring seat (8) is sleeved in the endoporus of plunger (5) lower end; The bottom of spring seat (8) is sphere, and the upper end of the push rod (9) that coordinates with it is also the sphere that size coordinates with it; Its working principle is: because stroke required in this break working procedure is very little, in braking process, high pressure oil acts on the upper surface of barrier film (3), and acts on plunger (5) upper surface, promotes it and moves down compression braking tellurium sheet (10), and the cabin is braked; In this very little stroke, the elastic deformation energy of barrier film (3) satisfies usage requirement, high-pressure and hydraulic oil is enclosed between the upper surface of the internal surface of break upper cover (1) and barrier film (3), has effectively prevented the seepage that the high pressure liquid force feed may occur in the braking process in cabin; When master-control room sends the instruction cabin need to go off course the time, the logical oil return in sealed elastic space that the upper surface of the lower end surface of break upper cover (1) and barrier film (3) forms, unable effect on the upper plane of plunger (5), the damping of break is provided by damping spring (7), this moment, the cabin was under the driving of yaw motor, while, under the friction torque effect of damping spring (7), when being turned back to reposefully the position of appointment, running under braking was generated electricity again again.
2. a kind of diaphragm type wind power generating set off-course brake according to claim 1, it is characterized in that: remove damping spring (7), brake cylinder fills low-pressure hydraulic oil in the damping in when driftage is comprised of the upper surface toward the lower end surface of break upper cover (1) and barrier film (3) sealed elastic space realizes, its pressure is regulated by the low pressure backpressure overflow valve.
3. a kind of diaphragm type wind power generating set off-course brake according to claim 1, it is characterized in that: keep damping spring (7), brake cylinder lower hydraulic oil and spring force of pressurising power in the damping in when driftage is comprised of the upper surface toward the lower end surface of break upper cover (1) and barrier film (3) sealed elastic space make up to realize, its pressure is regulated by the low pressure backpressure overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100671105A CN103148135A (en) | 2013-03-04 | 2013-03-04 | Yaw brake used for diaphragm-type wind generator set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100671105A CN103148135A (en) | 2013-03-04 | 2013-03-04 | Yaw brake used for diaphragm-type wind generator set |
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| CN103148135A true CN103148135A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100671105A Pending CN103148135A (en) | 2013-03-04 | 2013-03-04 | Yaw brake used for diaphragm-type wind generator set |
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| CN (1) | CN103148135A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235167A (en) * | 2014-09-24 | 2014-12-24 | 宁波捷成轴业有限公司 | Deceleration buffer magnetic shield rotating shaft |
| CN110043584A (en) * | 2019-04-29 | 2019-07-23 | 北京中金泰达电液科技有限公司 | A kind of high-precision low friction No leakage wind power yawing hydraulic braking cylinder |
| CN112343944A (en) * | 2020-12-22 | 2021-02-09 | 安顺西秀区新安科协机械有限责任公司 | Single-cylinder dry yaw brake structure |
| CN112413016A (en) * | 2020-12-23 | 2021-02-26 | 安顺西秀区新安科协机械有限责任公司 | Wind-powered electricity generation yaw brake structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008053017A3 (en) * | 2006-11-03 | 2008-10-23 | Vestas Wind Sys As | A yawing system for a wind turbine |
| CN101476542A (en) * | 2008-11-25 | 2009-07-08 | 上海应用技术学院 | Adjustable off-course brake of wind motor |
| US20100038192A1 (en) * | 2008-08-15 | 2010-02-18 | Culbertson Michael O | Floating yaw brake for wind turbine |
| CN102817779A (en) * | 2011-04-26 | 2012-12-12 | 通用电气公司 | System for actively monitoring wear on wind turbine brake pads and related methods |
| CN102900610A (en) * | 2012-11-11 | 2013-01-30 | 杨洁 | Normally closed type heavy punch pressure reduction control yawing braking system used for wind turbine generator |
-
2013
- 2013-03-04 CN CN2013100671105A patent/CN103148135A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008053017A3 (en) * | 2006-11-03 | 2008-10-23 | Vestas Wind Sys As | A yawing system for a wind turbine |
| US20100038192A1 (en) * | 2008-08-15 | 2010-02-18 | Culbertson Michael O | Floating yaw brake for wind turbine |
| CN101476542A (en) * | 2008-11-25 | 2009-07-08 | 上海应用技术学院 | Adjustable off-course brake of wind motor |
| CN102817779A (en) * | 2011-04-26 | 2012-12-12 | 通用电气公司 | System for actively monitoring wear on wind turbine brake pads and related methods |
| CN102900610A (en) * | 2012-11-11 | 2013-01-30 | 杨洁 | Normally closed type heavy punch pressure reduction control yawing braking system used for wind turbine generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235167A (en) * | 2014-09-24 | 2014-12-24 | 宁波捷成轴业有限公司 | Deceleration buffer magnetic shield rotating shaft |
| CN104235167B (en) * | 2014-09-24 | 2017-07-14 | 宁波捷成轴业有限公司 | A kind of deceleration buffer every magnetic rotating shaft |
| CN110043584A (en) * | 2019-04-29 | 2019-07-23 | 北京中金泰达电液科技有限公司 | A kind of high-precision low friction No leakage wind power yawing hydraulic braking cylinder |
| CN112343944A (en) * | 2020-12-22 | 2021-02-09 | 安顺西秀区新安科协机械有限责任公司 | Single-cylinder dry yaw brake structure |
| CN112413016A (en) * | 2020-12-23 | 2021-02-26 | 安顺西秀区新安科协机械有限责任公司 | Wind-powered electricity generation yaw brake structure |
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Application publication date: 20130612 |