CN207583754U - Wind generator set blade locks hydraulic system and wind power generating set - Google Patents
Wind generator set blade locks hydraulic system and wind power generating set Download PDFInfo
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- CN207583754U CN207583754U CN201721739301.1U CN201721739301U CN207583754U CN 207583754 U CN207583754 U CN 207583754U CN 201721739301 U CN201721739301 U CN 201721739301U CN 207583754 U CN207583754 U CN 207583754U
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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
The utility model provides a kind of blade locking hydraulic system and wind power generating set, and blade locking hydraulic system may include oil cylinder, and oil cylinder has small chamber and is arranged on the lock pin of small intracavitary；Fuel supply path, fuel supply path are connected between variable pitch hydraulic system and oil cylinder, and the hydraulic oil in variable pitch hydraulic system is supplied to small chamber；First check valve, the first check valve are arranged on the fuel supply path, and the entrance of the first check valve is connected with variable pitch hydraulic system, and the outlet of the first check valve is connected with small chamber.The blade locking hydraulic system of embodiment according to the present utility model, the pressure jump of the small intracavitary of oil cylinder is prevented by separating fuel supply path and oil return path sections and reasonably adjusting each control valve, simple structure, reduces cost and the maintenance for wind power generating set brings great convenience.
Description
Technical field
The utility model belongs to wind-driven generator technical group field, more particularly, is related to a kind of wind power generating set
Blade locks hydraulic system and wind power generating set.
Background technology
Wind power generating set generally include blade locking hydraulic system, personnel enter unit safeguarded or unit need
It when shutting down for a long time, needs to lock blade, to ensure the safety of the safety of staff and unit.
Blade locking system generally use hydraulic lock rationed marketing of the prior art locks pitch variable bearings.Fig. 1 is shown
The schematic diagram of vane locked cylinder 10 of the prior art.
As shown in Figure 1, oil cylinder 10 is divided by piston 11 for small chamber S1 and big chamber S2, lock pin 12 is connected to the work in oil cylinder 10
On plug 11.Hydraulic oil can be filled in small chamber S1, hydraulic oil can be also filled in big chamber S2 or compressed spring is set in big chamber S2.
Oil cylinder 10 is fixed on the wheel hub of wind power generating set, and lock pin 12 can stretch out simultaneously under the action of the spring or under the action of hydraulic oil
The iron installed on the inner ring or outer ring for the pitch variable bearings that blade is connected groove in the block is inserted into, so as to be connected to pitch variable bearings
Inner ring or the blade of outer ring remain fixed.
According to the prior art, the hydraulic oil that may be used in hydraulic variable propeller system supplies hydraulic pressure as oil sources for small chamber S1
Oil.For compressed spring is set in big chamber S2, when wind power generating set utilizes variable pitch hydraulic system variable pitch, there is higher pressure
The hydraulic oil of power enters the small chamber S1 of oil cylinder 10, makes spring-compressed in big chamber S2, and the lock pin 12 for being connected to piston 11 is made to retract, from
And discharge the locking to blade.When wind power generating set maintenance shut-downs, the hydraulic oil in the small chamber S1 of oil cylinder 10 is released, oil
It is stretched out under the action of the elastic force F1 of spring of the lock pin 12 in its big chamber S2 in cylinder 10, so as to lock blade.
However, hydraulic oil comes from variable pitch hydraulic system used by due to oil cylinder 10, the hydraulic oil that lock pin 12 is pushed to retract
Pressure F2 can change with the variation of variable pitch hydraulic system pressure.
If the situation that the pressure for occurring variable pitch hydraulic system in the pitch process of wind power generating set becomes smaller suddenly,
It is possible that can cause to make the thrust (that is, F2) that lock pin 12 is retracted less than the elastic force F1 of spring in blade locking hydraulic system, thus
Lock pin 12 is caused undesirably to stretch out, this can have an impact the safe operation of wind power generating set.
Utility model content
One of the purpose of this utility model is to solve above-mentioned technical problem.
One side according to the present utility model provides a kind of wind generator set blade locking hydraulic system, wind-force hair
Motor group blade locking hydraulic system may include：Oil cylinder, oil cylinder have small chamber and are arranged on the lock pin of small intracavitary；Oil passage
Diameter, fuel supply path are connected between variable pitch hydraulic system and oil cylinder, and the hydraulic oil in variable pitch hydraulic system is supplied to small chamber；
First check valve, the first check valve are arranged on fuel supply path, and the entrance of the first check valve is connected with variable pitch hydraulic system, and first
The outlet of check valve is connected with small chamber.
Embodiment according to the present utility model, it is unidirectional that wind generator set blade locking hydraulic system may also include second
Valve, the entrance of the second check valve can be connected with small chamber, and the outlet of the second check valve can be connected with variable pitch hydraulic system.
Embodiment according to the present utility model, wind generator set blade locking hydraulic system may also include solenoid valve, electricity
Magnet valve may be provided on fuel supply path, the fuel feeding arrival end of solenoid valve can with the outlet of the first check valve, solenoid valve
The fuel feeding port of export can be connected with small chamber.
Embodiment according to the present utility model, oil cylinder may also include big chamber and be arranged on the elastic component of big intracavitary, greatly
Chamber can be connected with small chamber by solenoid valve, and when wind power generating set is shut down, lock pin can be in the effect of the elastic force of elastic component
Lower stretching.
Embodiment according to the present utility model, big chamber and small chamber can be connected with collecting the fuel tank of hydraulic oil.
Embodiment according to the present utility model, the A mouths of solenoid valve can with the outlet of the first check valve, solenoid valve
C mouthfuls can connect with small chamber, and the B mouths of solenoid valve can be connected with collecting the fuel tank of hydraulic oil.
Embodiment according to the present utility model, wind generator set blade locking hydraulic system may also include throttle valve, save
Stream valve can be arranged on fuel supply path, and the entrance of throttle valve can be with the outlet of the first check valve, the outlet of throttle valve
It can be connected with the A mouths of solenoid valve.
Embodiment according to the present utility model, wind generator set blade locking hydraulic system can also throttle valve, throttle valve
It may be provided on fuel supply path.
Embodiment according to the present utility model, wind generator set blade locking hydraulic system may also include control unit,
Control unit can control to solenoid valve power supply or make its power-off.
Another aspect according to the present utility model provides a kind of wind power generating set, which can include
Above-mentioned blade locks hydraulic system.
The oil pressure of the small intracavitary of oil cylinder can be maintained at by the blade locking hydraulic system of embodiment according to the present utility model
Level of security or highest level, so as to which the lock pin for preventing oil cylinder occurs malfunctioning and stretch since the pressure of variable pitch hydraulic system is low
Go out.
Embodiment according to the present utility model blade locking hydraulic system can when wind power generating set is shut down equilibrium oil
The oil pressure of the small chamber of cylinder and big chamber.
Description of the drawings
In conjunction with the accompanying drawings, from the description of the following examples, the utility model these and/or other aspects and advantage
It will become apparent, and it is more readily appreciated that wherein：
Fig. 1 is the schematic diagram of oil cylinder；
Fig. 2 is the schematic diagram of the blade locking hydraulic system of first embodiment according to the present utility model；
Fig. 3 is the schematic diagram of the blade locking hydraulic system of second embodiment according to the present utility model；
Fig. 4 is the schematic diagram of the blade locking hydraulic system of 3rd embodiment according to the present utility model.
Drawing reference numeral：
10：Oil cylinder；11：Piston；12：Lock pin；S1：Small chamber；S2：Big chamber；13：First check valve；14：Second check valve；
24：Variable pitch hydraulic system；26：Fuel tank；30：Throttle valve；23：Solenoid valve；22：Shut-off valve.
Specific embodiment
Embodiment according to the present utility model makes the liquid of the small intracavitary of the oil cylinder of blade locking hydraulic system using check valve
Pressure oil pressure is maintained at safe range, and the lock pin to avoid intracavitary small in pitch process undesirably stretches out, and causes to send out wind-force
The safety of the variable pitch of motor group and entire unit has an adverse effect.
The embodiment of the utility model is described below with reference to accompanying drawings, label identical in the accompanying drawings indicates identical always
Component.
Fig. 2 is the schematic diagram of the blade locking hydraulic system of first embodiment according to the present utility model.
As shown in Fig. 2, first embodiment according to the present utility model, blade locking hydraulic system may include oil cylinder 10 and the
One check valve 13, oil cylinder 10 can be arranged on the wheel hub of wind power generating set, and oil cylinder 10 can have small chamber S1 and be arranged on
Lock pin 12 in small chamber S1.
Lock pin 12 may be provided on the piston rod (not shown) of oil cylinder 10 or be directly connected to piston 11, the small chamber of oil cylinder 10
S1 and big chamber S2 can be separated by piston 11, and elastic component (for example, spring) is may be provided in big chamber S2, and elastic component can connect
It is connected between the inner wall of oil cylinder 10 and piston 11.
Embodiment according to the present utility model can discharge small by fuel supply path to small chamber S1 fuel feeding or by oil return path
Oil in chamber S1.
Optionally, the first check valve 13 may be provided on fuel supply path, and the entrance of the first check valve 13 can be with variable pitch liquid
Pressure system 24 connects, and the outlet of the first check valve 13 can be connected with small chamber S1.
Furthermore the first check valve 13 can change in the oil pressure in the oil circuit formed by variable pitch hydraulic system 24
When, the hydraulic oil in small chamber S1 is prevented to be back to variable pitch hydraulic system 24, is thus prevented in wind generating set pitch control, oil
Hydraulic oil in the small chamber S1 of cylinder 10 flows back to variable pitch hydraulic system 24.
Therefore, the first check valve 23 can avoid variable pitch hydraulic system 24 system pressure (for example, oil pressure) suddenly become smaller and
Lead to the stretching of lock pin 12, so as to avoid lock pin 12 is undesirable from stretching out the variable pitch for influencing wind power generating set and entire wind
The safe operation of power generator group.
First check valve 23 can realize the hydraulic oil prevented in wind generating set pitch control in the small chamber S1 of oil cylinder 10
The function of undesirably flowing back.
Although being not shown in the drawings, small chamber S1 can also comprise oil outlet, which can pass through shut-off valve 22
It is connected with fuel tank 26.
Optionally, small chamber S1 may also include another oil outlet, these oil outlets can pass through shut-off valve 22 and variable pitch hydraulic pressure system
24 (for example, collection fuel tanks of variable pitch hydraulic system 24) of uniting connect, that is, fuel tank 26 can be one of variable pitch hydraulic system 24
Point.In other words, when wind power generating set shuts down (for example, maintenance), controllable shut-off valve 22 is opened, so that the liquid in small chamber S1
Pressure oil flows back into variable pitch hydraulic system 24 by other controllable oil return line diameters.
As described above, the entrance of the first check valve 13 can be connected with variable pitch hydraulic system 24, the first check valve 13 goes out
Mouth can be connected with the small chamber S1 of oil cylinder 10, therefore, from 24 to the first check valve 13 of variable pitch hydraulic system again to the small of oil cylinder 10
Chamber S1 (24-13-S1) can form fuel supply path.
That is, when shutdown (for example, maintenance) can be formed to fuel tank 26 (S1-22-26) from small chamber S1 to shut-off valve 22
Oil return path.
In addition, in the case where big chamber S2 and small chamber S1 can form enough cushion spaces, fuel tank 26 can be omitted.Also
It is to say, big chamber S2 and small chamber S1 can form balanced oil pressure.
Optionally, the Opening pressure of the first check valve 13 is smaller than the maximum pressure of variable pitch hydraulic system 24, that is, first is single
The maximum pressure for the hydraulic oil for being smaller than supplying from variable pitch hydraulic system 24 to the Opening pressure of valve 13.
Specifically, when wind power generating set normal operation (for example, variable pitch), shut-off valve 22 is closed, and first
Check valve 13 can make the small chamber S1 in oil cylinder 10 always in maximum pressure state, when the oil pressure of variable pitch hydraulic system 24 occurs
During variation, the hydraulic oil of small chamber S1 can not be back to variable pitch hydraulic system 24, can not also flow to fuel tank 26, as a result, at spring
In most compressed state, lock pin 12 remains at maximum retraction state, so as to ensure the safety of unit operation.
The blade locking hydraulic system of first embodiment according to the present utility model can make lock pin by simply constructing
12 are maintained at maximum retraction state.
In addition, second embodiment according to the present utility model, can make the lock pin that blade lock determines hydraulic system be maintained at peace
Full retracted mode.This is described in detail with reference to Fig. 3.
Fig. 3 is the schematic diagram of the blade locking hydraulic system of second embodiment according to the present utility model.
Second embodiment according to the present utility model, blade locking hydraulic system can also be included with the first check valve 13 simultaneously
Join the second check valve 14 of connection, the entrance of the first check valve 13 can be connect with the outlet of the second check valve 14.
That is, the entrance of the second check valve 14 can be connected with small chamber S1, the outlet of the second check valve 14 can be with
Variable pitch hydraulic system 24 connects, and the first check valve 13 and the second check valve 14 can have different Opening pressures.
Optionally, the Opening pressure of the second check valve 14 can be more than the Opening pressure of the first check valve 13.For example, variable pitch
System pressure (for example, the pressure of oil supplied from variable pitch hydraulic system 24) maximum pressure of hydraulic system 24 is F3, and first is single
It is F4 to the Opening pressure of valve 13, the Opening pressure of the second check valve 14 is F5, and in this case, the first check valve 13 is opened
F3 can be less than by opening pressure F4, and the Opening pressure F5 of the second check valve 14 can be more than Opening pressure F4 and be less than maximum pressure
F3.Therefore, the blade locking hydraulic system of the utility model, can make lock pin be maintained at safe retraction state.
In addition, when system maximum pressure F3 is less than the Opening pressure F5 of the second check valve 14, when variable pitch hydraulic system 24
System pressure (for example, the pressure of oil supplied from variable pitch hydraulic system 24) become hour suddenly, the hydraulic oil in small chamber S1
Pressure is maintained at F3, that is, the hydraulic oil in small chamber S1 is unable to reach the Opening pressure of the second check valve 14.
Therefore, the blade locking hydraulic system of second embodiment according to the present utility model can also make the liquid in small chamber S1
Pressure oil can not flow back to variable pitch hydraulic system 24.
As described above, the blade locking hydraulic system of second embodiment according to the present utility model can ensure in small chamber S1
Lock pin be maintained at safe retraction state, therefore, as long as selecting suitable Opening pressure for the second check valve 14.Example
Such as, F4<F5<F3, at this time the Opening pressure F5 of the second check valve 14 at least need to ensure that lock pin is safely retracted.
Specifically, the Opening pressure of the second check valve 14 needs to be greater than or equal to F6, when the oil pressure in small chamber S1 is F6,
Lock pin 12 does not stretch out just or does not contact pitch variable bearings just, and here, pressure F6 is properly termed as safe pressure.Sensor can be passed through
The approximate range of the oil pressure in variable pitch hydraulic system 24 is measured, and selects suitable check valve.
Although being not shown in Fig. 3, as shown in Fig. 2, in F5>F3>In the case of F4, the oil outlet of small chamber S1 also can be through
It is connected by shut-off valve 22 with variable pitch hydraulic system 24 and/or fuel tank 26.That is, shut-off valve 22 and other controllable time can be passed through
Oil return line discharges the hydraulic oil in small chamber S1.
As described above, the entrance of the first check valve 13 can be connected with variable pitch hydraulic system 24, the first check valve 13 goes out
Mouth can connect (for example, being connected with the oil inlet of small chamber S1) with oil cylinder 10.The entrance of second check valve 14 can be with small chamber S1
Oil outlet connection, the outlet of the second check valve 14 can be connected with variable pitch hydraulic system 24, can also be connected with fuel tank 26.
In this case, small chamber S1 can only set a hydraulic fluid port, that is, fuel supply path and oil return path can share the same oil of small chamber S1
Mouthful.
As described above, the blade locking hydraulic system of second embodiment according to the present utility model can be by simply constructing
Lock pin 12 to be made to be maintained at safe compressive state.
Fig. 4 is the schematic diagram of the blade locking hydraulic system of 3rd embodiment according to the present utility model.
3rd embodiment according to the present utility model, blade locking hydraulic system may include oil cylinder 10, fuel supply path etc., this
A little components can be identical with the corresponding component in first embodiment, and which is not described herein again.
It is different with above-described embodiment, the blade locking hydraulic system of 3rd embodiment according to the present utility model
Solenoid valve 23 is may also include, solenoid valve 23 is attached on fuel supply path, and solenoid valve 23 is also attached to fuel supply path and oil return
On the common path in path, the fuel feeding arrival end of solenoid valve 23 can be with the outlet of the first check valve 13.
As shown in figure 4, the big chamber S2 of oil cylinder 10 is connected with small chamber S1 by solenoid valve 23.
Optionally, big chamber S2 and small chamber S1 can be connected with fuel tank 26, therefore when wind power generating set is shut down, small chamber S1
Balanced with the oil pressure in big chamber S2, lock pin 12 can stretch out under the action of the elastic force of the elastic component in big chamber S2 as a result,.
In the state of wind power generating set shutdown, control unit can control solenoid valve 23 to power off solenoid valve 23,
In this case, oil return path can be formed from small chamber S1 to solenoid valve 23 to fuel tank 26 (S1-23-26).Similarly, fuel tank 26 can
To omit, in the case where omitting fuel tank 26, small chamber S1 and big chamber S2 can form balanced oil pressure.
Further, solenoid valve 23 can have various constructions, for example, solenoid valve 23 can be two-bit triplet solenoid valve.
In this case, the A mouths of solenoid valve 23 can with the outlet of the first check valve 13, the C mouths of solenoid valve 23 can with it is small
Chamber S1 is connected, and the B mouths of solenoid valve 23 can be connected with collecting the fuel tank 26 of the hydraulic oil on oil return path.Have in solenoid valve 23
In the case of other constructions, as long as rationally controlling the power supply of corresponding port by control unit, you can realize corresponding hydraulic oil
Path integration.
It, can be by above-mentioned control unit to two-bit triplet for example, when wind power generating set normal operation (for example, variable pitch)
Solenoid valve 23 is powered, and in this case, the A mouths of two-bit triplet solenoid valve 23 are connected with C mouthfuls, the high pressure of variable pitch hydraulic system 24
Oil into small chamber S1 and overcomes the elastic force of elastomeric element by the first check valve 13, the A mouths of two-bit triplet solenoid valve 23 and C mouthfuls
Acting pushes lock pin 12 to retract, and release blade locking enables the normal variable pitch of blade.
When the oil pressure of variable pitch hydraulic system 24 reduces, due to the effect of the first check valve 13, without hydraulic oil from lock pin
12 small chamber S1 flows back to variable pitch hydraulic system 24, so the small chamber S1 of oil cylinder 10 keeps high pressure, therefore can prevent the lock of oil cylinder 10
Pin 12 occurs malfunctioning and stretch out since the pressure of variable pitch hydraulic system 24 is low.
The blade locking hydraulic system of above-described embodiment according to the present utility model may each comprise throttle valve 30, for example, section
Stream valve 30 may be provided on fuel supply path, and in 3rd embodiment according to the present utility model, the entrance of throttle valve 30 can be with
The outlet of first check valve 13, the outlet of throttle valve 30 can be connected with the A mouths of solenoid valve 23.
Although being not specifically illustrated control unit in the accompanying drawings, control unit may be provided at the machine of wind power generating set
In seat, and it may include the controller formed by integrating IC.
In addition, control unit can control the controllable component power supply into entire blade locking hydraulic system or make its power-off,
Or control instruction is sent to controllable component, lock pin is finally made to perform correct scaling operation according to correct instruction.
In addition, the blade locking hydraulic system of above-described embodiment according to the present utility model may also include various valves, drive
The auxiliary components such as dynamic pump, sensor.
The oil pressure of the small intracavitary of oil cylinder can be maintained at by the blade locking hydraulic system of embodiment according to the present utility model
Highest level or level of security, so as to which the lock pin for preventing oil cylinder occurs malfunctioning and stretch since the pressure of variable pitch hydraulic system is low
Go out.
Embodiment according to the present utility model blade locking hydraulic system can when wind power generating set is shut down equilibrium oil
The oil pressure of the small chamber of cylinder and big chamber.
The blade locking hydraulic system of embodiment according to the present utility model accurately controls the flexible of lock pin, improves entire
The reliability of system.
The blade locking hydraulic system of embodiment according to the present utility model, by making fuel supply path and oil return path sections
It separates and reasonably adjusts each control valve to prevent the pressure jump of the small intracavitary of oil cylinder, simple structure reduces cost simultaneously
Maintenance for wind power generating set brings great convenience.
Above description is merely a prefered embodiment of the utility model, but the scope of protection of the utility model is not limited to
This, the change that is readily apparent that in the technical scope that any one skilled in the art discloses in the utility model or replaces
It changes, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be wanted with the right
Subject to the protection domain asked.
Claims (10)
1. a kind of wind generator set blade locks hydraulic system, which is characterized in that including：
Oil cylinder (10), the oil cylinder (10) have small chamber (S1) and the lock pin (12) being arranged in the small chamber (S1)；
Fuel supply path, the fuel supply path is connected between variable pitch hydraulic system (24) and the oil cylinder (10), by the change
Hydraulic oil in paddle hydraulic system (24) is supplied to the small chamber (S1)；
First check valve (13), first check valve (13) are arranged on the fuel supply path, first check valve (13)
Entrance connected with the variable pitch hydraulic system (24), the outlet of first check valve (13) is connected with the small chamber (S1).
2. wind generator set blade according to claim 1 locks hydraulic system, which is characterized in that it is single to further include second
To valve (14), the entrance of second check valve (14) is connected with the small chamber (S1), the outlet of second check valve (14)
It is connected with the variable pitch hydraulic system (24).
3. wind generator set blade according to claim 1 locks hydraulic system, which is characterized in that further includes solenoid valve
(23), the solenoid valve (23) is arranged on the fuel supply path, the fuel feeding arrival end and described first of the solenoid valve (23)
The outlet of check valve (13), the fuel feeding port of export of the solenoid valve (23) are connected with the small chamber (S1).
4. wind generator set blade according to claim 3 locks hydraulic system, which is characterized in that the oil cylinder (10)
Big chamber (S2) and the elastic component being arranged in the big chamber (S2) are further included, the big chamber (S2) and the small chamber (S1) are logical
The solenoid valve (23) connection is crossed, when the wind power generating set is shut down, the lock pin (12) can be in the elastic component
Elastic force under the action of stretch out.
5. wind generator set blade according to claim 4 locks hydraulic system, which is characterized in that the big chamber (S2)
It is connected with the small chamber (S1) with collecting the fuel tank (26) of hydraulic oil.
6. wind generator set blade according to claim 3 locks hydraulic system, which is characterized in that the solenoid valve
(23) A mouths and the outlet of first check valve (13), the C mouths of the solenoid valve (23) connect with the small chamber (S1)
Logical, the B mouths of the solenoid valve (23) are connected with collecting the fuel tank (26) of hydraulic oil.
7. wind generator set blade according to claim 6 locks hydraulic system, which is characterized in that further includes throttle valve
(30), the throttle valve (30) is arranged on the fuel supply path, entrance and first check valve of the throttle valve (30)
(13) outlet, the outlet of the throttle valve (30) are connected with the A mouths of the solenoid valve (23).
8. wind generator set blade according to claim 1 locks hydraulic system, which is characterized in that further includes throttle valve
(30), the throttle valve (30) is arranged on the fuel supply path.
9. the wind generator set blade locking hydraulic system according to any one of claim 3 to 7, which is characterized in that
Control unit is further included, described control unit controls to solenoid valve power supply or makes its power-off.
10. a kind of wind power generating set locks hydraulic system including blade as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721739301.1U CN207583754U (en) | 2017-12-13 | 2017-12-13 | Wind generator set blade locks hydraulic system and wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721739301.1U CN207583754U (en) | 2017-12-13 | 2017-12-13 | Wind generator set blade locks hydraulic system and wind power generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583754U true CN207583754U (en) | 2018-07-06 |
Family
ID=62737505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721739301.1U Active CN207583754U (en) | 2017-12-13 | 2017-12-13 | Wind generator set blade locks hydraulic system and wind power generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583754U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185056A (en) * | 2018-10-30 | 2019-01-11 | 新疆金风科技股份有限公司 | Pitch drive, pitch drive system and wind power generating set |
| CN110094388A (en) * | 2019-05-05 | 2019-08-06 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of energy storage type lockable mechanism and its application method |
| CN114321093A (en) * | 2020-09-29 | 2022-04-12 | 北京金风科创风电设备有限公司 | Multi-pin locking hydraulic control system and wind generating set |
-
2017
- 2017-12-13 CN CN201721739301.1U patent/CN207583754U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185056A (en) * | 2018-10-30 | 2019-01-11 | 新疆金风科技股份有限公司 | Pitch drive, pitch drive system and wind power generating set |
| CN110094388A (en) * | 2019-05-05 | 2019-08-06 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of energy storage type lockable mechanism and its application method |
| CN110094388B (en) * | 2019-05-05 | 2024-03-15 | 中国石油天然气集团有限公司 | Energy storage type locking mechanism and use method thereof |
| CN114321093A (en) * | 2020-09-29 | 2022-04-12 | 北京金风科创风电设备有限公司 | Multi-pin locking hydraulic control system and wind generating set |
| CN114321093B (en) * | 2020-09-29 | 2024-02-23 | 北京金风科创风电设备有限公司 | Multi-pin locking hydraulic control system and wind generating set |
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