CN208089461U - A kind of wind power generating set braked and locked using hydraulic cushion - Google Patents
A kind of wind power generating set braked and locked using hydraulic cushion Download PDFInfo
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- CN208089461U CN208089461U CN201820577405.5U CN201820577405U CN208089461U CN 208089461 U CN208089461 U CN 208089461U CN 201820577405 U CN201820577405 U CN 201820577405U CN 208089461 U CN208089461 U CN 208089461U
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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 belongs to technical field of wind power generation.Cause cabinet vibrations and brake mill damage that braking effect is caused to decline to exist when solving the problem of wind power generating set using the brake of conventional mechanical formula, the wind power generating set that the utility model discloses a kind of to be braked and be locked using hydraulic cushion.The wind power generating set, including hydraulic pump, hydraulic motor, wind wheel, generator and repairing unit, hydraulic cushion unit and hydraulic locking unit；Wherein, the major circulatory system of normal operation can be switched to by hydraulic cushion unit by braking cycle system, completes, to the buffer-braking of generator unit, hydraulic pump can be isolated by hydraulic locking unit, realizes the locking to wind wheel and hydraulic pump.The wind power generating set of the utility model utilizes hydraulic cushion unit and hydraulic locking unit, may be implemented to the steady buffer-braking of generating set and locking, to avoid shaking, improves the protection to generating set, ensures the stabilization of braking effect.
Description
Technical field
The utility model belongs to technical field of wind power generation, and in particular to a kind of wind braked and locked using hydraulic cushion
Power generator group.
Background technology
With the exhaustion of world's traditional energy in recent years, novel energy climbs up energy stage one after another.Wind-power electricity generation is considerable
Development is made that due contribution for the exhaustion of world energy sources and environmental crisis.Therefore, novel hydraulic wind power generating set equipment
Unprecedented concern has been obtained, and has had begun to test all over the world or come into operation, it will has gradually replaced traditional machine
The gear-driven generating set of tool.Wherein, normal fortune of the brake system quality of wind power generating set for entire generating set
Row plays a crucial role.The brake system of wind power generating set is mainly used for the security system of wind energy conversion system.Wind energy conversion system is stopped
Vehicle is divided into normal braking and wind energy conversion system overload, the urgent interim brake for meeting with the fortuitous events such as strong wind when major circulatory system is safeguarded
Vehicle.
Currently, the traditional mechanical brake of generally use in hydraulic wind power generating set, such as by brake disc pair
The direct Bao Brake of shaft complete skidding.However, during this mechanical type friction brakes, it will usually cause cabinet
Strenuous vibration, especially vibrations can be more obvious and violent during emergency brake, to the stabilization of entire generating set operation
Property and safety have an impact, and brake disc work long hours after with its degree of wear continuous intensification, braking effect
It can be remarkably decreased, to influence the effect of skidding, security risk is brought to the operation of generating set.
Utility model content
When in order to solve wind power generating set using the brake of conventional mechanical formula, exists and cabinet is caused to shake and brake mill damage
The problem of causing braking effect to decline, the wind-driven generator that the utility model proposes a kind of to be braked and be locked using hydraulic cushion
Group.The wind power generating set, including hydraulic pump, hydraulic motor, wind wheel, generator and repairing unit, hydraulic cushion unit and
Hydraulic locking unit；Wherein,
It is connected by high-pressure oil passage between the oil outlet of the hydraulic pump and the oil inlet of the hydraulic motor, the hydraulic pressure
It is connected by low pressure oil way between the oil outlet of motor and the oil inlet of hydraulic pump；The input shaft of the wind wheel and the hydraulic pump
Connection, the output axis connection of the generator and the hydraulic motor；
The repairing unit, including slippage pump and oil feeding reservoir；The oil inlet of the slippage pump is connected to the oil feeding reservoir, institute
The oil outlet for stating slippage pump is connected to the low pressure oil way；
The hydraulic cushion unit, including buffer overflow valve and buffering reversal valve；The buffer overflow valve is located at the height
Between pressure oil road and the low pressure oil way, and the oil inlet of the buffer overflow valve is connected to the high-pressure oil passage, described slow
The oil outlet for rushing overflow valve is connected to the low pressure oil way；The buffering reversal valve is located in the high-pressure oil passage, and is located at
Between the oil inlet of the hydraulic motor and the oil inlet of the buffer overflow valve, the break-make for controlling the high-pressure oil passage；
The hydraulic locking unit, including locking reversal valve, hydraulic control one-way valve, low pressure check valve and repairing check valve；Institute
It states hydraulic control one-way valve to be located in the high-pressure oil passage, and the oil outlet of the oil outlet of the hydraulic control one-way valve and the hydraulic pump
Directly it is connected to；The low pressure check valve is located in the low pressure oil way, and the oil outlet of the low pressure check valve and the liquid
The oil inlet of press pump is directly connected to；The repairing check valve is located between the oil outlet and the low pressure oil way of the slippage pump,
And the oil outlet of the repairing check valve simultaneously with the oil inlet of the hydraulic pump and the oil outlet phase of the low pressure check valve
Connection；The locking reversal valve includes A mouthfuls, P mouthfuls and T mouthfuls, and described A mouthfuls is connected to the control port of the hydraulic control one-way valve, institute
It states P mouthfuls to be connected to the oil outlet of the slippage pump, described T mouthfuls is connected to the oil feeding reservoir；When the locking reversal valve is located at the
When one working position, described A mouthfuls is connected to described P mouthfuls, the T mouthfuls of closing；When the locking reversal valve is located at the second working position,
Described A mouthfuls is connected to described T mouthfuls, the P mouthfuls of closing.
Preferably, which further includes speed probe, and the speed probe is located at the wind wheel and institute
Between stating hydraulic pump, the rotating speed for detecting the wind wheel.
Preferably, which further includes low pressure relief valve, the oil inlet of the low pressure relief valve with it is described low
Oil communication, oil outlet is pressed to be connected to the oil feeding reservoir.
Preferably, the repairing unit further includes repairing overflow valve, oil inlet and the repairing of the repairing overflow valve
The oil outlet of pump is connected to, and oil outlet is connected to the oil feeding reservoir.
Preferably, the buffering reversal valve uses 2/2-way solenoid directional control valve.
It is further preferred that the buffering reversal valve use spring reset structure, and in dead electricity reset state when, institute
The oil inlet and oil outlet for stating buffering reversal valve disconnect.
Preferably, the buffer overflow valve selects electricity liquid ratio relief valve.
Preferably, the locking reversal valve uses two solenoid directional control valves.
It is further preferred that the locking reversal valve use spring reset structure, and in dead electricity reset state when, institute
It states A mouthfuls to be connected to described T mouthfuls, the P mouthfuls of closing.
The wind power generating set of the utility model has the advantages that when carrying out hydraulic cushion braking and locking：
1, in the wind power generating set normal course of operation of the utility model, by buffering the switching of reversal valve and right
Major circulatory system can be rapidly switched to the braking cycle system of no hydraulic motor by the control of buffer overflow valve, to ensure liquid
Press pump, using the oil pressure relief gradually promoted to buffer overflow valve, gradually increases in the case where continuing normal output high-voltage oil liquid
The oil outlet pressure of liquid feeding press pump, the power for overcoming hydraulic pump to be generated under wind wheel drive, keeps wind wheel and hydraulic pump gradually steady
Stop operating.In this way, being stepped up using oil pressure relief in buffer overflow valve, ensure that will not in entire braking process
Braking impact is generated to hydraulic pump, entire wind power generating set can also be made smoothly to switch to braking when even braking starts
In the circulatory system, so as to avoid the vibrations of braking process, the protection to generating set is improved, ensure that the steady of braking effect
It is fixed.
2, in the wind power generating set of the utility model, by lock reversal valve, hydraulic control one-way valve, low pressure check valve and
The cooperating of repairing check valve, the hydraulic pump progress after braking is completely isolated, it is same to the oil inlet and oil outlet of hydraulic pump
Shi Jinhang is closed, the rotation for making external forces that hydraulic pump can not be driven to carry out forward and reverse, to realize to wind wheel and liquid
The locking of press pump.It and in the locked condition, can also be by the impact if by accidental shock moment rotation is occurred for wind wheel
Power is transferred to by hydraulic pump in hydraulic oil, using micro- compressibility of hydraulic oil, is quickly absorbed to impact force, to avoid
Hard impact occurs between wind wheel and hydraulic pump, improves the protection to hydraulic pump and wind wheel.
Description of the drawings
Fig. 1 is the systematic schematic diagram for the wind power generating set that the utility model is braked and locked using hydraulic cushion；
Fig. 2 is systematic schematic diagram when the utility model wind power generating set carries out buffer-braking；
Fig. 3 is systematic schematic diagram when the utility model wind power generating set is locked.
Specific implementation mode
It describes in detail in the following with reference to the drawings and specific embodiments to the technical solution of the utility model.
In conjunction with shown in Fig. 1, the wind power generating set of the utility model, including hydraulic pump 1, hydraulic motor 2, wind wheel 3, power generation
Machine 4 and repairing unit 5, hydraulic cushion unit 6 and hydraulic locking unit 7.
It is connected by high-pressure oil passage 81 between the oil outlet and the oil inlet of hydraulic motor 2 of hydraulic pump 1, hydraulic motor 2
It is connected again by low pressure oil way 82 between oil outlet and the oil inlet of hydraulic pump 1, to form the major circulatory system of closed loop.Wind wheel
3 with the input axis connection of hydraulic pump 1, the output axis connection of generator 4 and hydraulic motor 2.At this point, wind wheel 3 is in extraneous wind-force
It is rotated by, to drive the rotation output high-voltage oil liquid of hydraulic pump 1, high-voltage oil liquid to flow to hydraulic motor by high-pressure oil passage 81
2 and drive hydraulic motor 2 rotate, and then drive generator 4 operating power generation.
Wherein, in the present embodiment, hydraulic motor 2 selects variable displacement motor, passes through the discharge capacity tune to hydraulic motor 2 in this way
It is whole, the high-voltage oil liquid for the different flow that hydraulic motor 2 and hydraulic pump 1 export can be made preferably to be matched, to make hydraulic pressure
The operating of motor 2 can be matched from extraneous different wind regime, ensure continual and steady generating effect.
In addition, a speed probe 91 is additionally provided between hydraulic pump 1 and wind wheel 3, for the real-time rotating speed to wind wheel 3
It is detected, so as to provide reference data in real time for the adjustment of the discharge capacity of hydraulic motor 2, what raising adjusted hydraulic motor 2
Rapidity and accuracy.
Repairing unit 5, including slippage pump 51 and oil feeding reservoir 52.Wherein, the oil inlet of slippage pump 51 is connected to oil feeding reservoir 52,
The oil outlet of slippage pump 51 is connected to low pressure oil way 82.At this point, slippage pump 51 is under the driving effect of motor, it will be in oil feeding reservoir 52
Low temperature fluid be delivered in major circulatory system carry out fluid supplement and cooling, to ensure the normal fortune of major circulatory system
Row.
Preferably, in the present embodiment, repairing overflow valve 53 and oil compensation pressure table 54 are additionally provided in repairing unit 5.Wherein,
The oil inlet of repairing overflow valve 53 is connected to the oil outlet of slippage pump 51, and oil outlet and the oil feeding reservoir 52 of repairing overflow valve 53 connect
It is logical, and oil compensation pressure table 54 is located at the oil outlet position of slippage pump 51.At this point, can be monitored in real time by oil compensation pressure table 54
The supplement oil liquid pressure that slippage pump 51 exports, by the supplement that can change the output of slippage pump 51 to the adjustment of repairing overflow valve 53
Oil liquid pressure size, so as to so that the supplement fluid that slippage pump 51 exports mutually is fitted with the oil liquid pressure holding in low pressure oil way 82
State is answered, the pressure oscillation for causing fluid in main system in proper order when supplement oil liquid pressure is too high or too low is avoided, ensures major cycle
The steady flow of oil liquid pressure in system.
Hydraulic cushion unit 6, including buffer overflow valve 61 and buffering reversal valve 62.Wherein, buffer overflow valve 61 is located at height
Between pressure oil road 81 and low pressure oil way 82, and the oil inlet of buffer overflow valve 61 is connected to high-pressure oil passage 81, buffer overflow valve
61 oil outlet is connected to low pressure oil way 82.Buffering reversal valve 62 be located in high-pressure oil passage 81, and be located at hydraulic motor 2 into
Between hydraulic fluid port and the oil inlet of buffer overflow valve 61, the break-make for controlling high-pressure oil passage 81.
Wherein, in the operational process that wind power generating set carries out normal power generation, buffering reversal valve 62 is in channel status,
The connection of high-pressure oil passage 81, safety valve of the simultaneous buffering overflow valve 61 as major circulatory system is kept to control major circulatory system
Maximum pressure ensures the safe operation of major circulatory system.
Preferably, in the present embodiment, buffer overflow valve 61 selects electricity liquid ratio relief valve.In this way, not only may be implemented
To the remote automatic control of buffer overflow valve 61, and the degree of regulation to 61 pressure of buffer overflow valve and adjusting can be improved
Speed realizes the accurate quick control to major circulatory system pressure.
Preferably, buffering reversal valve 62 selects 2/2-way solenoid directional control valve, may be implemented to change buffering using electric signal
To the long-range action control of valve 62.Further, when buffering reversal valve 62 and use spring reset structure, and being in reset state,
It buffers reversal valve 62 and keeps off state.Buffering reversal valve 62 is set to be in mistake in this way, accident power-off occurs in entire generating set
When electricity condition, high-pressure oil passage 81 can directly be switched and be maintained at off-state, stop major circulatory system and continue to generate electricity, from
And avoid that continue working of the major circulatory system under runaway condition occurs, ensure to control the security reliability of major circulatory system.
Hydraulic locking unit 7, including locking reversal valve 71, hydraulic control one-way valve 72, low pressure check valve 73 and repairing check valve
74.Wherein, hydraulic control one-way valve 72 is located in high-pressure oil passage 81, and the oil outlet of hydraulic control one-way valve 72 and hydraulic pump 1 is fuel-displaced
Mouth is directly connected to.Low pressure check valve 73 is located in low pressure oil way 82, and the oil outlet of low pressure check valve 73 and hydraulic pump 1 into
Hydraulic fluid port is directly connected to.Repairing check valve 74 is located between the oil outlet and low pressure oil way 82 of slippage pump 51, and repairing check valve
74 oil outlet is connected with the oil outlet of the oil inlet of hydraulic pump 1 and low pressure check valve 73 simultaneously.It includes A to lock reversal valve 71
Mouthful, P mouthful and T mouthful, A mouthfuls are connected to the control port of hydraulic control one-way valve 72, and P mouthfuls are connected to the oil outlet of slippage pump 51, T mouthfuls and benefit
Fuel tank 52 is connected to, and when locking reversal valve 71 is located at the first working position, A mouthfuls are connected to P mouthfuls, T mouthfuls of closings；When locking commutates
When valve 71 is located at the second working position, A mouthfuls are connected to T mouthfuls, P mouthfuls of closings.
At this point, the part supplement fluid that slippage pump 51 exports flow to hydraulic control as control oil by locking reversal valve 71
The main valve open of hydraulic control one-way valve 72 is made its oil inlet be connected to oil outlet, keeps hydraulic pump 1 defeated by the control port of check valve 72
The high-voltage oil liquid gone out can flow to hydraulic motor 2 directly through hydraulic control one-way valve 72.
In the present embodiment, what locking reversal valve 71 was selected is two four-way electromagnetic reversing valves, the B mouths wherein in reversal valve
Always it is in closed state, equally in other embodiments, two-bit triplet reversal valve can also directly be selected to commutate as locking
Valve 71, realize A mouthfuls respectively between P mouthfuls and T mouthfuls break-make switching.
At the same time, in the present embodiment, locking reversal valve 71 equally selects spring reset structure, and in reset shape
When state, A mouthfuls are connected to T mouthfuls, and P mouthfuls are in closed state.In this way, accident power-off, which occurs, in entire generating set makes locking reversal valve
71 when being in power failure state, can be directly by the oil circuit cut-out between hydraulic control one-way valve 72 and slippage pump 51 and by hydraulic control one-way valve
72 control port is connected to oil feeding reservoir 52, to make hydraulic control one-way valve 72 be closed, is stopped hydraulic pump 1 and is continued to liquid
Pressure motor 2 provides high-voltage oil liquid, and major circulatory system is made to be stopped, and ensures that generating set is safe and reliable in runaway condition
Property.
In addition, in conjunction with shown in Fig. 1, a pressure gauge 92 is additionally provided in high-pressure oil passage 81, and be located at hydraulic control one-way valve
72 and buffering reversal valve 62 between, in real time monitor high-pressure oil passage 81 in oil liquid pressure and cooperation buffer overflow valve 61 into
The adjustment of row pressure.Be additionally provided with a low pressure relief valve 83 in low pressure oil way 82, wherein the oil inlet of low pressure relief valve 83 with
Low pressure oil way 82 is connected to, and oil outlet is connected to oil feeding reservoir 52, the pressure for controlling fluid in low pressure oil way 82, and in time will
Part high-temperature oil liquid in low pressure oil way 82 is drained in oil feeding reservoir 52, to coordinate slippage pump 51 to be mended again into low pressure oil way 82
Enter low temperature fluid, Oil-temperature control is carried out to major circulatory system, ensures that major circulatory system can be with the operation work of continuous and effective.
The wind power generating set of the utility model in the process of running, mainly there is following three kinds of working conditions：
The first working condition is normal operation power generating stage.In conjunction with shown in Fig. 1, in this stage, slippage pump 51 keeps work
Make state and persistently export the supplement fluid with certain pressure, which can be adjusted control by repairing overflow valve 53
System.It locks reversal valve 71 to be in obtain electricity condition, i.e. A mouthfuls is connected to P mouthfuls, and T mouthfuls are in closed state, thus by slippage pump 51 and liquid
The control port connection for controlling check valve 72, makes hydraulic control one-way valve 72 that channel status, simultaneous buffering reversal valve 62 be kept to be also at
Electricity condition, to which entire high-pressure oil passage 81 is maintained at channel status.At this point, wind wheel 3 is under the driving of extraneous wind energy, band hydrodynamic
Press pump 1 export high-voltage oil liquid, and by high-pressure oil passage 81 be delivered to hydraulic motor 2 drive its rotation, to drive generator 4 into
Row power generation.At the same time, buffer overflow valve 61 controls the maximum pressure of major circulatory system as main safety valve, and low pressure is overflow
It flows valve 83 to cooperate to major circulatory system progress repairing cooling with slippage pump 51, ensures the continual and steady work of major circulatory system
Make.
Second of working condition is the buffer-braking stage.In conjunction with shown in Fig. 1 and Fig. 2, in this stage, commutate first to buffering
Valve 62 carries out power-off and switches it to off state, and cutoff high oil circuit 81 connects hydraulic pump 1 and hydraulic motor 2, same with this
When, the control signal of buffer overflow valve 61 is quickly down to small signal, buffer overflow valve 61 is made to be in smaller oil pressure relief.This
When, the high-voltage oil liquid that hydraulic pump 1 exports under the drive of wind wheel 3 is all flowed directly to low pressure oil way by buffer overflow valve 61, and
It is flow to again in hydraulic pump 1 by low pressure check valve 73, forms braking cycle system.Then, according to speed probe 91 to wind
The testing result for taking turns 3 rotating speeds gradually adjusts the control signal of buffer overflow valve 61, gradually increases buffer overflow valve 61
Oil pressure relief makes hydraulic pump 1 and wind wheel 3 taper off rotation, is finally completed to improve the pressure at 1 oil outlet end of hydraulic pump
Entire buffer-braking process.
The third working condition is the locking stage.In conjunction with shown in Fig. 1 and Fig. 3, operated completing the buffer-braking to wind wheel 3
Afterwards, it closes slippage pump 51 and stops continuing to output for supplement fluid, while locking reversal valve 71 is powered off, make A mouthfuls to switch to
It is connected to T mouthfuls, makes P mouthfuls of closings, make 72 oil out of hand of hydraulic control one-way valve and switch to unidirectional open state, keep hydraulic pump 1 defeated
The fluid gone out can not continue through hydraulically-controlled one-way valve 72.At this point, in hydraulic control one-way valve 72, low pressure check valve 73 and repairing check valve
Under 74 collective effect, the oil inlet of hydraulic pump 1 and oil outlet are cut off simultaneously, hydraulic pump 1 is made to be in isolation, Wu Fa
The rotation that forward and reverse is carried out under the driving of external forces, to complete the locking to hydraulic pump 1 and wind wheel 3.
Claims (9)
1. a kind of wind power generating set braked and locked using hydraulic cushion, which is characterized in that including hydraulic pump, hydraulic pressure horse
It reaches, wind wheel, generator and repairing unit, hydraulic cushion unit and hydraulic locking unit；Wherein,
It is connected by high-pressure oil passage between the oil outlet of the hydraulic pump and the oil inlet of the hydraulic motor, the hydraulic motor
Oil outlet and the oil inlet of hydraulic pump between connected by low pressure oil way；The input shaft of the wind wheel and the hydraulic pump connects
It connects, the output axis connection of the generator and the hydraulic motor；
The repairing unit, including slippage pump and oil feeding reservoir；The oil inlet of the slippage pump is connected to the oil feeding reservoir, the benefit
The oil outlet of oil pump is connected to the low pressure oil way；
The hydraulic cushion unit, including buffer overflow valve and buffering reversal valve；The buffer overflow valve is located at the high pressure oil
Between road and the low pressure oil way, and the oil inlet of the buffer overflow valve is connected to the high-pressure oil passage, and the buffering is overflow
The oil outlet of stream valve is connected to the low pressure oil way；The buffering reversal valve is located in the high-pressure oil passage, and positioned at described
Between the oil inlet of hydraulic motor and the oil inlet of the buffer overflow valve, the break-make for controlling the high-pressure oil passage；
The hydraulic locking unit, including locking reversal valve, hydraulic control one-way valve, low pressure check valve and repairing check valve；The liquid
Control check valve is located in the high-pressure oil passage, and the oil outlet of the hydraulic control one-way valve and the oil outlet of the hydraulic pump are direct
Connection；The low pressure check valve is located in the low pressure oil way, and the oil outlet of the low pressure check valve and the hydraulic pump
Oil inlet be directly connected to；The repairing check valve is located between the oil outlet and the low pressure oil way of the slippage pump, and
The oil outlet of the repairing check valve is connected with the oil outlet of the oil inlet of the hydraulic pump and the low pressure check valve simultaneously；
The locking reversal valve includes A mouthfuls, P mouthfuls and T mouthfuls, and described A mouthfuls is connected to the control port of the hydraulic control one-way valve, P mouthfuls described
It is connected to the oil outlet of the slippage pump, described T mouthfuls is connected to the oil feeding reservoir；When the locking reversal valve is located at the first work
When position, described A mouthfuls is connected to described P mouthfuls, the T mouthfuls of closing；When the locking reversal valve is located at the second working position, the A
Mouth is connected to described T mouthfuls, the P mouthfuls of closing.
2. wind power generating set according to claim 1, which is characterized in that further include speed probe, the rotating speed passes
Sensor is between the wind wheel and the hydraulic pump, the rotating speed for detecting the wind wheel.
3. wind power generating set according to claim 1, which is characterized in that further include low pressure relief valve, the low pressure is overflow
The oil inlet of stream valve is connected to the low pressure oil way, and oil outlet is connected to the oil feeding reservoir.
4. wind power generating set according to claim 1, which is characterized in that the repairing unit further includes repairing overflow
The oil inlet of valve, the repairing overflow valve is connected to the oil outlet of the slippage pump, and oil outlet is connected to the oil feeding reservoir.
5. according to the wind power generating set described in any one of claim 1-4, which is characterized in that the buffering reversal valve is adopted
With 2/2-way solenoid directional control valve.
6. wind power generating set according to claim 5, which is characterized in that the buffering reversal valve uses spring reset knot
Structure, and in dead electricity reset state when, it is described buffering reversal valve oil inlet and oil outlet disconnect.
7. according to the wind power generating set described in any one of claim 1-4, which is characterized in that the buffer overflow valve choosing
Use electricity liquid ratio relief valve.
8. according to the wind power generating set described in any one of claim 1-4, which is characterized in that the locking reversal valve is adopted
With two solenoid directional control valves.
9. wind power generating set according to claim 8, which is characterized in that the locking reversal valve uses spring reset knot
Structure, and in dead electricity reset state when, described A mouthful is connected to described T mouthfuls, it is described P mouthfuls close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820577405.5U CN208089461U (en) | 2018-04-23 | 2018-04-23 | A kind of wind power generating set braked and locked using hydraulic cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820577405.5U CN208089461U (en) | 2018-04-23 | 2018-04-23 | A kind of wind power generating set braked and locked using hydraulic cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208089461U true CN208089461U (en) | 2018-11-13 |
Family
ID=64056686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820577405.5U Expired - Fee Related CN208089461U (en) | 2018-04-23 | 2018-04-23 | A kind of wind power generating set braked and locked using hydraulic cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208089461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443062A (en) * | 2018-04-23 | 2018-08-24 | 兰州理工大学 | A kind of wind power generating set braked and locked using hydraulic cushion |
-
2018
- 2018-04-23 CN CN201820577405.5U patent/CN208089461U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443062A (en) * | 2018-04-23 | 2018-08-24 | 兰州理工大学 | A kind of wind power generating set braked and locked using hydraulic cushion |
| CN108443062B (en) * | 2018-04-23 | 2023-10-03 | 兰州理工大学 | Wind generating set adopting hydraulic buffer braking and locking |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20210423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |