CN201858080U - Spindle brake device of wind power generation hydraulic system - Google Patents
Spindle brake device of wind power generation hydraulic system Download PDFInfo
- Publication number
- CN201858080U CN201858080U CN2010205894883U CN201020589488U CN201858080U CN 201858080 U CN201858080 U CN 201858080U CN 2010205894883 U CN2010205894883 U CN 2010205894883U CN 201020589488 U CN201020589488 U CN 201020589488U CN 201858080 U CN201858080 U CN 201858080U
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- CN
- China
- Prior art keywords
- valve
- solenoid valve
- pipeline
- hydraulic system
- power generation
- 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 - Lifetime
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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
Abstract
The utility model discloses a spindle brake device of a wind power generation hydraulic system, which is applied in the technical field of wind power generation, and comprises an oil pump, a first electromagnetic valve and two spindle brake oil cylinders, wherein the oil pump is in pipeline connection with the first electromagnetic valve through a pressure reducing valve, a pressure relief port of the pressure reducing valve is connected with an external oil tank, the first electromagnetic valve is in pipeline connection with the two spindle brake oil cylinders through a throttling valve, and the throttling valve is further in pipeline connection with the external oil tank through a second electromagnetic valve. Due to the adoption of the pressure reducing valve and the throttling valve, the pressure and the flow rate of hydraulic oil in hydraulic pipelines can be controlled, and the normal and smooth operation of a spindle brake of the hydraulic system can be further ensured.
Description
Technical field
The utility model belongs to technical field of wind power generation, relates to a kind of wind generating unit, relates in particular to a kind of wind power generation hydraulic system spindle braking device.
Background technique
The hydraulic brake system of wind-driven generator mainly comprises main shaft braking device and driftage braking device.
The hydraulic system of main shaft braking device is when braking, often owing to the too high hydraulic system fault that causes of hydraulic fluid pressure in the hydraulic system pipeline, perhaps hydraulic oil passes to the hydraulic oil speed inequality in the main shaft brake oil cylinder and causes the excessive or not enough phenomenon of braking strength.
A kind of wind power generation hydraulic system spindle braking device need be provided, make that hydraulic fluid pressure and the flow rate in the pipeline of hydraulic control system is controlled, thereby guarantee that the main shaft braking device normally, work reposefully.
The model utility content
Technical problem to be solved in the utility model provides a kind of wind power generation hydraulic system spindle braking device, realize the normal, steady of hydraulic control system main shaft brake, hydraulic system fault of the prior art takes place and the defective of braking strength inequality thereby overcome.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of wind power generation hydraulic system spindle braking device, comprise oil pump, first solenoid valve and two main shaft brake oil cylinders, oil pump connects first solenoid valve by the reduction valve pipeline, the pressure relief opening of reduction valve connects external fuel tank, first solenoid valve connects the main shaft brake oil cylinder by the throttle valve pipeline, and throttle valve also connects external fuel tank by the second solenoid valve pipeline.
Be disposed with the filter and first one-way valve between oil pump of the present utility model and the reduction valve pipeline.
Be disposed with second one-way valve and orifice plug between the reduction valve of the present utility model and the first solenoid valve pipeline.
The utility model also comprises pressure switch and pressure measuring tie-in, and pressure switch and pressure measuring tie-in are connected on the pipeline between oil cylinder and the throttle valve.
First solenoid valve of the present utility model and second solenoid valve are two-position two-way solenoid valve.
Adopt the beneficial effect of technique scheme:
The reduction valve that the utility model adopted, the hydraulic oil in pipeline unloads hydraulic oil to external fuel tank, to prevent that hydraulic system is because of the excessive generation operation troubles of loine pressure above automatic conducting in the setting pressure; The throttle valve that the utility model adopted makes the flowing velocity equilibrium of the hydraulic oil in the pipeline, and oil cylinder moves when piston rod is released gently, thus when guaranteeing the brake of hydraulic system main shaft steadily.
Description of drawings
Fig. 1 is a system schematic of the present utility model.
Wherein:
010-oil pump, 011-reduction valve, 012-filter, 013-the first one-way valve, 014-the second one-way valve, 015-orifice plug, 020-the first solenoid valve, 021-throttle valve, 022-pressure switch, 023-pressure measuring tie-in, 030-oil cylinder, 040-external fuel tank, 050-the second solenoid valve.
Embodiment
Below in conjunction with specific embodiment the utility model is further described:
See also Fig. 1, it is a structural representation of the present utility model, comprises oil pump 010, reduction valve 011, first solenoid valve 020, throttle valve 021, pressure switch 022, pressure measuring tie-in 023, two main shaft brake oil cylinders 030, external fuel tank 040 and second solenoid valves 050.
First one-way valve 013 and second one-way valve 014 prevent the backflow of hydraulic oil in the pipeline.
The pressure relief opening of reduction valve 011 is connected with external fuel tank 040 with pipeline between the external fuel tank 040 by second solenoid valve 050.
The hydraulic oil of reduction valve 011 in pipeline unloads hydraulic oil to external fuel tank 040, to prevent that hydraulic system is because of the excessive generation operation troubles of loine pressure above automatic conducting in the setting pressure.
When wind-driven generator need be shut down brake, first solenoid valve 020 and second solenoid valve 050 all were in power failure state, first solenoid valve, 020 left road conducting this moment, and second solenoid valve 050 cuts out.The hydraulic oil that is provided by oil pump 010 is through behind the reduction valve 011, pressure is reduced to setting value, position, left side path through first one-way valve 013, orifice plug 015 and first solenoid valve 020 arrives the O point again, because second solenoid valve 050 is in closed condition, so hydraulic oil all enters the rodless cavity of main shaft brake oil cylinder 030 by throttle valve 021, piston rod is stretched out, thereby wind driven generator principal shaft is braked.
When wind-driven generator restarts to turn round, first solenoid valve 020 and second solenoid valve 050 all be in electricity condition, this moment first solenoid valve 020 close 050 conducting of second solenoid valve.First solenoid valve 020 is in closed condition, do not have hydraulic oil to enter main shaft brake oil cylinder 030 this moment, and second solenoid valve 050 is on state simultaneously, hydraulic oil in the main shaft brake oil cylinder 030 is by second solenoid valve 050, flow back to external fuel tank 040 through pressure relief opening T1, oil cylinder 030 piston rod is withdrawn under the effect of spring force, makes the wind driven generator principal shaft brake unclamp.
When the pusher retracted of main shaft brake oil cylinder 030 behind settling position, second solenoid valve 050 is dead electricity, and in the whole process that wind-driven generator runs well, first solenoid valve 020 be in all the time electricity condition.
Above-mentioned embodiment is exemplary, be in order better to make those skilled in the art can understand this patent, can not be interpreted as it is the restriction that this patent is comprised scope, so long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (5)
1. wind power generation hydraulic system spindle braking device, it is characterized in that: comprise oil pump, first solenoid valve and two main shaft brake oil cylinders, oil pump connects first solenoid valve by the reduction valve pipeline, the pressure relief opening of reduction valve connects external fuel tank, first solenoid valve connects the main shaft brake oil cylinder by the throttle valve pipeline, and throttle valve also connects external fuel tank by the second solenoid valve pipeline.
2. wind power generation hydraulic system spindle braking device according to claim 1 is characterized in that: be disposed with the filter and first one-way valve between described oil pump and the reduction valve pipeline.
3. wind power generation hydraulic system spindle braking device according to claim 1 is characterized in that: be disposed with second one-way valve and orifice plug between the described reduction valve and the first solenoid valve pipeline.
4. wind power generation hydraulic system spindle braking device according to claim 1 is characterized in that: also comprise pressure switch and pressure measuring tie-in, described pressure switch and pressure measuring tie-in pipeline respectively are connected to pipeline between described oil cylinder and the throttle valve.
5. wind power generation hydraulic system spindle braking device according to claim 1 is characterized in that: described first solenoid valve and second solenoid valve are two-position two-way solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205894883U CN201858080U (en) | 2010-11-03 | 2010-11-03 | Spindle brake device of wind power generation hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205894883U CN201858080U (en) | 2010-11-03 | 2010-11-03 | Spindle brake device of wind power generation hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858080U true CN201858080U (en) | 2011-06-08 |
Family
ID=44103888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205894883U Expired - Lifetime CN201858080U (en) | 2010-11-03 | 2010-11-03 | Spindle brake device of wind power generation hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979868A (en) * | 2010-11-03 | 2011-02-23 | 上海电气液压气动有限公司 | Spindle brake device for wind power generation hydraulic system |
-
2010
- 2010-11-03 CN CN2010205894883U patent/CN201858080U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979868A (en) * | 2010-11-03 | 2011-02-23 | 上海电气液压气动有限公司 | Spindle brake device for wind power generation hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |
|
| CX01 | Expiry of patent term |