CN108286526A - No leakage rotation blade angle hydraulic pressure regulator - Google Patents
No leakage rotation blade angle hydraulic pressure regulator Download PDFInfo
- Publication number
- CN108286526A CN108286526A CN201810219632.5A CN201810219632A CN108286526A CN 108286526 A CN108286526 A CN 108286526A CN 201810219632 A CN201810219632 A CN 201810219632A CN 108286526 A CN108286526 A CN 108286526A
- Authority
- CN
- China
- Prior art keywords
- oil
- piston rod
- bladder
- hydraulic
- blade angle
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0055—Rotors with adjustable blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/60—Control system actuates means
- F05D2270/64—Hydraulic actuators
-
- 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
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of No leakage rotation blade angle hydraulic pressure regulators, including case and fluid pressure governor assembly, fluid pressure governor assembly include oil cylinder, hydraulic station fuel tank, piston, piston rod, for electric slip ring, the bladder of package piston rod bottom is installed between the piston rod of fluid pressure governor assembly and the oil sealing cover of oil cylinder；The upper end opening of bladder is fixed on oil sealing cover, and lower ending opening is fixed on the piston rod, makes to form a closed oil storage space at oil sealing cover, down toward piston rod bottom inside bladder.The present invention had both avoided the waste of hydraulic oil, in turn avoided the trouble constantly to adjuster hydraulic station fuel tank repairing, was especially that of avoiding the pollution to adjuster surrounding working environment caused by due to getting rid of oil.
Description
Technical field
The present invention relates to a kind of No leakage rotation blade angle hydraulic pressure regulators, belong to blade pump condition adjusting control skill
Art field.
Background technology
Rotation blade angle hydraulic pressure regulator is one of full adjusting matching used adjuster of axial-flow pump, is changed with passing through
Water pump blade angle, to change the working performance of water pump, when work, fluid pressure governor be it is whole with motor main shaft in level
Synchronous high-speed rotates on face, and its piston rod makees the rotary body moved up and down simultaneously；When it has the rotation of adjuster rotatable parts
Between it is opposite shorten, mechanical wear is small, leakage point get rid of oil drop is few, sensor contact without abrasion, operation is more reliable the advantages that, obtain
Good popularization and application are arrived.
However in actual operation, especially after pump group long-play, ground is oil stain everywhere around motor and motor.
To find out its cause, mainly piston rod is with after long, outer surface has oil stain or piston rod surface to be rusted, so surface is thick
It is rough, cause V-type to press from both sides fabric abrasion；In addition good sealing element can all produce quality after long-play because of serious wear again
Raw gap is leaked so as to cause hydraulic oil between piston rod and V-type folder fabric.The leakage of hydraulic oil, does not only result in hydraulic oil
Waste, also serious pollution ambient enviroment, and need constantly to supplement hydraulic oil to the hydraulic station fuel tank of adjuster causes behaviour
Trouble on work.In addition, can also influence its stability in water pump blade angle adjustment process.
CN201310353519.3 discloses a kind of built-in rotary blade angle hydraulic pressure regulator, and this application is the present invention
What people proposed.The adjuster is made of regulator body, case and control display system three parts, and wherein regulator body is pacified
Dress is fixed on the matched main motor shaft top of water pump assembly, the synchronous rotary with the rotation of main motor shaft, with water pump assembly
For rotating part with main motor at any time all in relative static conditions, case is mounted on the top of main motor shell, with
Main motor shell is in absolute rest state, so that water pump blade angle is carried out full-automatic regulation by programmable controller PLC, from
And the water pump moment is made to be in high efficient district operation.But still there are two leakage points in this fluid pressure governor：First, on piston
It is let out between oil sealing and cylinder wall, second is that piston rod passes through leaking at V-type folder fabric.
CN201711208869.5 discloses fuel feeding hydraulic pump blade angle synchronous governor in a kind of middle, the tune
Section device is made of fluid pressure governor ontology, connecting flange, hydraulic station fuel tank, piston and collector ring group, wherein fluid pressure governor sheet
At shaft coupling, hydraulic station fuel tank, fluid pressure governor ontology is arranged in the middle part of the main motor and water pump in body setting in fluid pressure governor ontology
Piston rod is arranged on piston for interior setting piston, and piston rod is connected by connecting flange with shaft is connect, in fluid pressure governor ontology
The periphery in portion is surrounded with collector ring group, realizes fluid pressure governor ontology and motor rotor body synchronous rotary, need not be single
Solely one rotating seal of setting, to improve its safety.Although the invention, which is claimed, to be leaked because of rotation, piston
Bar with long after, can still have outer surface has the phenomenon that oil stain or piston rod surface are rusted, and makes its rough surface, adds
Piston rod and piston-cylinder between sealing element after long-play, equally can generate gap because of serious wear,
It passes through from piston rod so as to cause hydraulic oil and leaks from oil sealing cover.
In addition, in the prior art, what hydraulic system all can be different degrees of has that the interior of hydraulic oil is let out and leak, for
Piston rod is only made for the hydraulic system moved above and below, be usually all in year-end overhaul of the equipments, by replace piston slip ring and
The modes such as sealing ring at V-type oil sealing, to solve the problems, such as that hydraulic fluid leak amount constantly increases, although this operating method cannot be thorough
Bottom solves the leakage problem of hydraulic oil, but because hydraulic test does not integrally make high speed rotary motion, hydraulic fluid leak amount can be relatively
It is few, big influence will not be caused to surrounding working environment；And upper and lower movement is made for its piston rod, hydraulic test is whole again
It rotates, especially for the adjuster of high speed rotary motion, only in year-end overhaul of the equipments, passes through more exchange device rapid wear
The mode of part solves the problems, such as that leakage rate constantly increases, and trouble will it is enough, and mainly equipment " getting rid of oil " can be to operational management
Work brings many inconvenience.
In addition, fluid pressure governor in the prior art not yet consider leakage hydraulic oil recycling can reduce operation at
Sheet and the troublesome problem for avoiding often adding, supplementing to adjuster hydraulic station fuel tank hydraulic oil.
Invention content
In view of the deficiency of the prior art, the object of the present invention is to provide a kind of more rational nothings of structure design
Leak rotation blade angle hydraulic pressure regulator, which is the institute on fluid pressure governor disclosed in the CN201310353519.3
The improvement made " is got rid of the pollution caused by oily " " to working environment and is needed outward thoroughly to solve fluid pressure governor due to leakage
It will be constantly to the troublesome problem of adjuster hydraulic station fuel tank repairing.
To achieve the above object, the technical solution adopted by the present invention is：No leakage rotation blade angle hydraulic pressure regulator,
Including case and fluid pressure governor assembly, fluid pressure governor assembly includes oil cylinder, hydraulic station fuel tank, piston, piston rod, power supply cunning
Ring, bladder, which is characterized in that package is installed between the piston rod of fluid pressure governor assembly and the oil sealing cover of oil cylinder and is lived
The bladder of stopper rod bottom；The upper end opening of bladder is fixed on oil sealing cover, and the lower ending opening of bladder is fixed on piston
On bar, make to form a closed oil storage space at oil sealing cover, down toward piston rod bottom inside bladder.
Preferably, above-mentioned bladder is the eccentric bladder of a center deviation piston rod.
Preferably, it is equipped with the bead being connected with eccentric bladder in a side bottom of the long diameter of above-mentioned eccentric bladder
Capsule, small sacculus top are equipped with breather cheek valve.
Preferably, above-mentioned small sacculus is connected to one end of elongated Flexible oil-returning pipes outward, and Flexible oil-returning pipes are another to be terminated at hydraulic pressure
It stands on the breather pipe cap of fuel tank.
Compared with prior art, the advantageous effect that the present invention has is：
1, by the way that a big bladder and one is arranged in the mobile space of adjuster hydraulic cylinder seal gland and tailpiece of the piston rod
Entire leakage point is wrapped to form sealing by big bladder, makes letting out between piston rod and oil sealing cover by a small sacculus
The hydraulic oil that leak is thrown away first is stored in closed big bladder, then whole with main motor axis high speed rotation by adjuster
When the centrifugal force that is subject to of oil droplet and piston rod bladder inspiration air when moving up and down, squeeze out oil droplet, to make adjuster get rid of
The hydraulic oil gone out is flowed back by small sacculus and by elongated Flexible oil-returning pipes in adjuster hydraulic station fuel tank, is both avoided in this way
The waste of hydraulic oil, in turn avoids the trouble constantly to adjuster hydraulic station fuel tank repairing, is especially that of avoiding due to getting rid of oil
Caused by pollution to adjuster surrounding working environment；
2, the design of bladder etc. is made for simultaneously for the hydraulic structure of upper and lower piston motion and high speed rotary motion, big
Bladder, small sacculus and Flexible oil-returning pipes follow piston rod to move up and down and REG Regulator Assembly are followed to make high speed rotary motion,
And the problem of having no effect between each other, having well solved fluid pressure governor hydraulic oil external leakage.
Description of the drawings
Fig. 1 is the structural front view of the present invention
Fig. 2 is that the present invention removes the left view after case
Fig. 3 is the structural schematic diagram of small sacculus of the present invention
Fig. 4 is the hydraulic schematic diagram of the present invention
Wherein, 1, mounting base, 2, support base, 3, upper fagging, 4, lower fagging, 5, strut, 6, hydraulic station, 7, electric support, 8, outstanding
Arm component, 9, transmission shaft, 10, displacement sensor, 11, card key disk, 12, case, 13, oil cylinder, 14, hydraulic station fuel tank, 15, living
Plug, 16, piston rod, 17, for electric slip ring, 18, oil sealing cover, 19, V-type press from both sides fabric, 20, eccentric bladder, 21, small sacculus, 22,
Flexible oil-returning pipes, 23, small size motor, 24, oil pump, 25, overflow valve, 26, check valve, 27, three position four-way electromagnetic valve, 28, hydraulic lock,
29, load balance valve, 30, breather cheek valve.
Specific implementation mode
Presently in connection with attached drawing, the invention will be further described.Obviously, the reality cannot therefore be limited the present invention to
It applies among a range.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
The every other embodiment obtained is put, is within the scope of protection of the invention.It should be noted that working as building block quilt
It referred to as " is equipped with " or when " being equipped with " or " being machined with " another component, the two can after being integrally formed and be aided with chisel, milling etc. and add
Work method is process, and can also be to be formed by connecting by modes such as bolt, welding, gluings.When a component is considered as " even
Connect " another component, the component placed in the middle that it can be directly to another component or may be simultaneously present.This specification
Used term " left side ", " right side ", "front", "rear" and similar expression for illustrative purposes only, in following embodiments
Model, size, condition is not specified, conventionally, or selects according to product manual.
Embodiment one
As shown in Figs. 1-3, No leakage rotation blade angle hydraulic pressure regulator of the present invention is a built-in rotation blade angle
Fluid pressure governor is spent, it includes case 12, fluid pressure governor assembly, and fluid pressure governor assembly is arranged on main motor top,
Middle fluid pressure governor assembly include mounting base 1, support base 2, upper fagging 3, lower fagging 4, strut 5, hydraulic station 6, electric support 7,
Slider assembly 8, displacement sensor 10, oil cylinder 13, hydraulic station fuel tank 14, piston 15, piston rod 16, for electric slip ring 17, oil sealing pressure
Lid 18, V-type folder fabric 19, eccentric bladder 20, small sacculus 21, Flexible oil-returning pipes 22, breather cheek valve 30.By in hydraulic regulation
The flexibility bias bladder 20 of 16 bottom of package piston rod is installed between the piston rod 16 and oil sealing cover 18 of device assembly；It is flexible
The upper end opening of eccentric bladder 20 is fixed on oil sealing cover 18, and lower ending opening is fixed on piston rod 16, makes flexible bias
A closed oil storage space is formed at oil sealing cover 18, down toward 16 bottom of piston rod inside bladder 20, solves to leak
The hydraulic oil store collected of leakage and the pollution problem caused by surrounding working environment；Bladder 20 is designed as a center deviation
The eccentric bladder of piston rod 16 is equipped with one in a side bottom of 20 long diameter of eccentric bladder and is connected with eccentric bladder 20
Logical small sacculus 21, the setting of the top of small sacculus 21 is there are one one-way air inlet, and 30, and 21 side middle and upper part of small sacculus is thin to being circumscribed with
One end of long Flexible oil-returning pipes 22, the another of Flexible oil-returning pipes 22 are terminated on the breather pipe cap of hydraulic station fuel tank 14, eccentric cryptomere
The design of object is in part of the present invention in addition to case 12 under high speed rotation so that the hydraulic oil that adjuster is leaked can be abundant
It flows into small sacculus 21.
The case 12 of the present invention is made of upper encloser, lower encioser, and wherein lower encioser is fixed on main motor shell top
End, it is in absolute rest state with main motor shell, and upper encloser is fixed on lower encioser, and upper encloser side is provided with
Observation window, electric support 7 are fixed on hydraulic station fuel tank 14 and are provided on the outer wall of electric support 7 blade angle display,
Blade angle display includes pointer and blade angle graduation apparatus, the case 12 to remain static in the liquid of rotation status
Power supply is provided for electric slip ring 17 by one between pressure station 6, hydraulic station 6 is fixed on hydraulic station fuel tank 14, is filled for electric slip ring 17
On slider assembly 8, after the stationary part energization of electric slip ring 17, power to hydraulic station for the rotating part of electric slip ring, simultaneously
The signal of displacement sensor 10 is spread out of.
The fluid pressure governor assembly of the present invention is rotation, referred to as rotary body, and case 12 is stationary.It is supporting
Piston rod 16 is installed on seat 2, is set there are one lower fagging 4 in 16 external part of piston rod, lower fagging 4 is equipped with strut 5, on strut 5
End is equipped with upper fagging 3.
Electric support 7 is equipped on hydraulic station fuel tank 14,7 back side of electric support is equipped with displacement sensor 10.In piston rod
16 when moving up and down, and drives lower fagging 4, strut 5, upper fagging 3 to synchronize and and then moves up and down, in this way, convenient for being fixed on hydraulic pressure
The displacement that the 6 detection water pump blade angle of displacement sensor 10 of standing changes.
With disclosed in CN201310353519.3, the invention also includes control display systems, control display system
It is made of PLC, touch screen, relay, fuse, switch power module, breaker, knob, can be shown on touch screen and work as frontal lobe
Piece angle, Main motor current, time, room temperature parameter, control system, which has, manually controls and automatically controls two kinds of functions, two kinds of controls
Mode processed is selected by the menu on point touching screen, is manually controlled and is divided into control and long-range two kinds of control modes on the spot,
Control and remote control are switched over by controlling two position knobs on display system case on the spot, and rotation controls show case on the spot
On angular adjustment knob is i.e. adjustable, control pump blade angle, remote control needs are connect with the microcomputer of pumping plant；It automatically controls
It is that automatic adjustment blade angle is changed by Main motor current, controls and be provided with emergency stop button on show case.
As shown in figure 4, the hydraulic station 6 of the present invention is equipped with small size motor 23, oil pump 24, overflow valve 25, check valve 26, three
Position four-way solenoid valve 27, hydraulic lock 28,29 each one, load balance valve, hydraulic station 6 are that control its by electrical control system small
Motor rotates, and is coupled three position four-way electromagnetic valve control oil pump oil transportation path by electrical control system, make hydraulic station 6 respectively to
13 fuel feeding of oil cylinder allows piston 15 and piston rod 16 to do upper and lower movement, drive lower fagging 4, on strut 5 fagging 3 and transmission shaft 9 with
And water pump blade adjusting rod moves up and down, and to drive water pump blade to rotate, and displacement sensor is driven to detect water pump blade
Place angle.
The present invention specifically assembles the assembling mode with reference to disclosed in CN201310353519.3.Increased bias bladder 20
Upper end opening be fixed on oil sealing cover 18, lower ending opening is fixed on piston rod 16, small sacculus 21 and eccentric bladder 20
It is connected, 21 top of small sacculus is equipped with breather cheek valve 30, and 22 one end of Flexible oil-returning pipes is connected with small sacculus 21, another to be terminated at hydraulic pressure
Stand on the breather pipe cap of fuel tank 14, formed so a big bladder and small sacculus only by an external Flexible oil-returning pipes 22 and
The sealing that hydraulic station fuel tank 14 communicates is whole.
The present invention presss from both sides the The hydraulic oil phase leaked out between fabric without oil pressure, piston rod in oil cylinder when not working with V-type
To less, hydraulic oil can be collected and be stored into eccentric bladder for a long time.
Enter hydraulic station fuel tank 14 about how hydraulic oil recycles from eccentric bladder 20, specifically has following aspects
Flow：
First, water pump assembly has just worked and adjuster when not working, system temperature rises, if small sacculus 21 or Flexible oil-returning pipes 22
Inside there is hydraulic oil, then the sealing room that eccentric bladder 20, small sacculus 21 and Flexible oil-returning pipes 22 are collectively formed can make eccentric cryptomere
Gas expansion in object 20, air pressure can enter the oil pressure in eccentric bladder in hydraulic station fuel tank 14；Water pump assembly works normally
And adjuster is not when needing work, the close indoor gas pressure of eccentric bladder 20 is balanced with extraneous, with piston rod 16 and V-type
The oil mass leaked out between folder fabric 19 increases, and eccentric bladder 20 seals indoor gas pressure and increases, and air pressure can be by hydraulic pressure
Oil is pressed into small sacculus 21 from eccentric bladder 20 and flows into hydraulic station oil by the upper end of the external Flexible oil-returning pipes 22 of small sacculus 21
In case 14.
Second is that water pump assembly normal work and adjuster again without work when, present apparatus case 12 is motionless, adjuster
Assembly is rotated with main motor axis, a small amount of oil leaked out between piston rod 16 and V-type folder fabric 19, under the action of the centrifugal force,
Oil is got rid of on 20 inner wall of eccentric bladder, then flows to major diameter inner wall side, and to flowing down, as oil mass increases, oil stream is toward small
In small sacculus 21, when the oil in small sacculus 21 reaches a certain amount of, under the action of the centrifugal force, oil can be pressed directly into upper end hydraulic station
In fuel tank 14.
Third, water pump assembly and adjuster all work, i.e. for water pump assembly when adjusting water pump blade angle, piston 15 is downward
Movement, piston rod 16 move down, and the sealing room of eccentric bladder 20 is elongated, and sealing building volume increases, and air pressure reduces, small sacculus
The breather cheek valve 30 at 21 tops automatically opens, and ambient atmos flow into eccentric bladder from the breather cheek valve 30 on small sacculus 21
In 20, when counter motion, piston 15 moves upwards, and piston rod 16 moves up, and sealing chamber pressure contracting, sealing building volume is reduced, gas
Pressure increases, and breather cheek valve 30 is automatically closed, and the oil in eccentric bladder 20, small sacculus 21 passes through elongated Flexible oil-returning pipes 22
Upper end is pressed into hydraulic station fuel tank 14.
The course of work（With specific reference to being disclosed in CN201310353519.3）：
1, power on, twisting change-over switch is to upward position, small machine rotation, and to drive oil pump to rotate, oil pump is to system
Fuel feeding, piston, piston rod move upwards, and on the one hand drive drag link sleeve and water pump blade to adjust push rod and move up, to drive
Water pump blade is rotated to positive direction, on the one hand drives lower fagging, strut and upper fagging to move up, amount of movement is passed to displacement
Signal is passed to read out instrument by sensor, displacement sensor, and read out instrument shows instant blade angle with displacement
Degree, when blade angle reaches setting, digital indicator internal relay disconnects, and indicator light extinguishes；
2, twisting change-over switch is to centre position, and the A.C. contactor inside digital indicator all disconnects, three position four-way electromagnetic valve
Both ends dead electricity simultaneously, P, A, B, O in three position four-way electromagnetic valve are obstructed, and therefore, small machine is also stopped, no pressure oil.
At this point, the oil of oil cylinder cavity of resorption forms pressure, load balance valve and hydraulic lock dual fail-safe because water pump Hydraulic Moment makes pull rod have load,
It prevents pressure oil from leaking, piston is made to remain stationary as；
3, twisting change-over switch to down position, indicator light is bright, A.C. contactor Buddhist monk, three position four-way electromagnetic valve left end obtain it is electric,
Hydraulic oil flows to A through check valve by P, and cylinder upper cavity oil is flowed into using hydraulic lock, opens simultaneously load balance valve, push piston to
Lower movement, the oil of oil cylinder cavity of resorption flow to O by B through load balance valve, hydraulic lock and flow into fuel tank.Piston, piston rod are transported downwards at this time
It is dynamic, it on the one hand drives drag link sleeve and water pump blade to adjust push rod and moves down, to drive water pump blade to turn to negative direction
It is dynamic, it on the other hand drives lower fagging, strut and upper fagging to move down, amount of movement is passed into displacement sensor.Displacement passes
Signal is passed to read out instrument by sensor, and read out instrument shows instant blade angle with the variation of displacement, works as leaf
When piece angle reaches setting value, read out instrument internal relay disconnects, and indicator light extinguishes, and three position four-way electromagnetic valve both ends are same
When dead electricity, the entire stroke that adjusts terminates.
It is applied also for without the mode to leak in addition, the No leakage rotation blade angle hydraulic pressure regulator of the present invention is realized
In the blade angle fluid pressure governor of middle.
Claims (4)
1. No leakage rotation blade angle hydraulic pressure regulator, including case and fluid pressure governor assembly, fluid pressure governor assembly
Including oil cylinder, hydraulic station fuel tank, piston, piston rod, for electric slip ring, which is characterized in that in the piston rod of fluid pressure governor assembly
The bladder of package piston rod bottom is installed between the oil sealing cover of oil cylinder；The upper end opening of bladder is fixed on oil sealing pressure
It covers, lower ending opening is fixed on the piston rod, makes to form one at oil sealing cover, down toward piston rod bottom inside bladder
Closed oil storage space.
2. No leakage rotation blade angle hydraulic pressure regulator according to claim 1, which is characterized in that bladder one
The eccentric bladder of center deviation piston rod.
3. No leakage rotation blade angle hydraulic pressure regulator according to claim 2, which is characterized in that in eccentric cryptomere
One side bottom of the long diameter of object is equipped with the small sacculus being connected with eccentric bladder, and breather cheek valve is equipped at the top of small sacculus.
4. No leakage rotation blade angle hydraulic pressure regulator according to claim 3, which is characterized in that small sacculus is outside
It is connected to one end of Flexible oil-returning pipes, the another of Flexible oil-returning pipes is terminated on the breather pipe cap of hydraulic station fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219632.5A CN108286526B (en) | 2018-03-16 | 2018-03-16 | Leakless rotary blade angle hydraulic regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219632.5A CN108286526B (en) | 2018-03-16 | 2018-03-16 | Leakless rotary blade angle hydraulic regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108286526A true CN108286526A (en) | 2018-07-17 |
| CN108286526B CN108286526B (en) | 2023-08-08 |
Family
ID=62833874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810219632.5A Active CN108286526B (en) | 2018-03-16 | 2018-03-16 | Leakless rotary blade angle hydraulic regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108286526B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829315A (en) * | 2012-08-30 | 2012-12-19 | 浙江平柴泵业有限公司 | Leakage-free energy-saving oil pump |
| US20130233166A1 (en) * | 2012-03-08 | 2013-09-12 | Quality Manufacturing Inc. | Rotational hydraulic joints |
| CN103388588A (en) * | 2013-08-15 | 2013-11-13 | 戴宏岸 | Built-in rotary blade angle hydraulic pressure regulator |
| CN103912517A (en) * | 2014-03-24 | 2014-07-09 | 日立泵制造（无锡）有限公司 | Hydraulic all-adjusted tubular pump structure for vertical shaft |
| CN107143505A (en) * | 2017-06-20 | 2017-09-08 | 广东河海泵业机械有限公司 | A kind of in-service adjusting means of follow-up motor type mechanical water pump blade angle |
| CN207945091U (en) * | 2018-03-16 | 2018-10-09 | 戴宏岸 | No leakage rotation blade angle hydraulic pressure regulator |
-
2018
- 2018-03-16 CN CN201810219632.5A patent/CN108286526B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130233166A1 (en) * | 2012-03-08 | 2013-09-12 | Quality Manufacturing Inc. | Rotational hydraulic joints |
| CN102829315A (en) * | 2012-08-30 | 2012-12-19 | 浙江平柴泵业有限公司 | Leakage-free energy-saving oil pump |
| CN103388588A (en) * | 2013-08-15 | 2013-11-13 | 戴宏岸 | Built-in rotary blade angle hydraulic pressure regulator |
| CN103912517A (en) * | 2014-03-24 | 2014-07-09 | 日立泵制造（无锡）有限公司 | Hydraulic all-adjusted tubular pump structure for vertical shaft |
| CN107143505A (en) * | 2017-06-20 | 2017-09-08 | 广东河海泵业机械有限公司 | A kind of in-service adjusting means of follow-up motor type mechanical water pump blade angle |
| CN207945091U (en) * | 2018-03-16 | 2018-10-09 | 戴宏岸 | No leakage rotation blade angle hydraulic pressure regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108286526B (en) | 2023-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105673621B (en) | A kind of aviation actuator reciprocation sealing multi-state comprehensive simulation test system | |
| US8128386B2 (en) | Variable flow pumping system | |
| CN102197220A (en) | Turbine | |
| CN107387774A (en) | A kind of adaptive dry gas seals system regulated and controled online based on spring pressure | |
| CN105179314B (en) | A kind of novel axial flow fan stator blade regulating system | |
| CN103388588A (en) | Built-in rotary blade angle hydraulic pressure regulator | |
| CN106091010A (en) | A kind of engine chamber duplex burner valve | |
| CN109883717A (en) | A kind of cylinder of internal-combustion engine simulator and control method | |
| CN207945091U (en) | No leakage rotation blade angle hydraulic pressure regulator | |
| CN101403438A (en) | Magnetic driving electronic expansion valve | |
| CN108286526A (en) | No leakage rotation blade angle hydraulic pressure regulator | |
| CN101900143B (en) | Swing type hydraulic proportioning and servo valve | |
| CN103511004A (en) | Closed electro-hydraulic actuator and assembly of closed electro-hydraulic actuator | |
| CN208236794U (en) | A kind of single cylinder positioning power unit | |
| CN116771931A (en) | Low-torque gas butterfly valve and control method thereof | |
| CN209196245U (en) | Integral pneumatic butterfly valve | |
| CN209228588U (en) | Reciprocating compressor automatic electric drives full flow clearance stepless regulating system | |
| CN208431206U (en) | The air inlet blade opening of centrifugal compressor accurately controls and feedback device | |
| CN210715276U (en) | Quiet leaf angle governing system of axial compressor | |
| CN102644631B (en) | High-pressure and high-flow alternating-current servo direct-driven eccentric shaft type flow valve | |
| CN206801838U (en) | The more air bag clearance adjustment actuating mechanisms of reciprocating compressor | |
| CN113279956B (en) | Embedded connection type gear oil pump body with good sealing effect | |
| CN205091206U (en) | Gas cylinder valve casing withstand voltage test system | |
| CN210769105U (en) | Energy accumulator type oil pressure speed regulator | |
| CN208669358U (en) | Compact little volume flow high pressure ratio mixed-flow industrial turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230713 Address after: 415000 Floor 1, Building 02, No. 888, No. 2 Road, Xin'an Community, Dongjiang Township, Wuling District, Changde City, Hunan Province Applicant after: Hunan Shenyu Water Resources and Hydropower Co.,Ltd. Address before: 415000 No. 1018 Renmin East Road, Wuling District, Changde City, Hunan Province Applicant before: Dai Hongan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |