CN110145502A - A kind of lesser combined piston accumulator of pressure oscillation - Google Patents
A kind of lesser combined piston accumulator of pressure oscillation Download PDFInfo
- Publication number
- CN110145502A CN110145502A CN201910373926.8A CN201910373926A CN110145502A CN 110145502 A CN110145502 A CN 110145502A CN 201910373926 A CN201910373926 A CN 201910373926A CN 110145502 A CN110145502 A CN 110145502A
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- Prior art keywords
- sap cavity
- accumulator
- end cap
- piston
- bearing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/205—Accumulator cushioning means using gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of lesser combined piston accumulators of pressure oscillation, by cam mechanism by accumulator fluid pressure and gas pressure be isolated, change the Pressure Variation of liquid in accumulator using the nonlinear characteristic of cam mechanism, to make accumulator when continuing externally to carry out flow-compensated, the pressure inside accumulator can be stablized in a certain range.The present invention overcomes traditional accumulator valve control hydraulic system execute frequency moment become larger when the violent defect of accumulator pressure fluctuating in inner as caused by hydraulic pump flow control lag, reduce the adverse effect that pressure oscillation controls hydraulic valve.
Description
Technical field
The invention belongs to hydraulic equipment fields, are related to a kind of combined piston accumulator, in particular to a kind of by convex
Taking turns mechanism nonlinear characteristic reduces the piston accumulator of pressure oscillation in the accumulator course of work.
Background technique
Accumulator plays storage energy in hydraulic system and reduces the important function of pressure oscillation.Common accumulator master
It to include bag type accumulator, piston accumulator and diaphragm accumulator.The design theory of routine accumulator is formed at present
Six the seventies of last century, but with the development of hydraulic machinery, such accumulator is no longer satisfied respectively in actual use
Kind specific demand.For many specific use occasions, people have carried out continuous improvement to the overall structure of accumulator.As in
One kind of state patent CN200910073744.5 design is online change charging pressure of accumulator, volume and working fluid damping, into
The bag type accumulator of hydraulic fluid port damping, the accumulator is using hydraulic control hydraulic cylinder control air cavity volume and pressure, using electromagnetic coil
It adjusts the magnetic field size in magnetorheological sap cavity and changes accumulator damped coefficient using step motor control oil inlet open area, mention
The high comprehensive performance of accumulator.As Chinese patent CN200810038538.6 design a kind of compound leather bag hydraulic accumulator,
The patent is mentioned by increasing a small leather bag of independence wrapped up by copper wire heat exchange layer inside the leather bag of existing bag type accumulator
High accumulator absorbs the ability of low frequency pulsating.
The improvement of the above accumulator is considered from absorption system compression shock and dynamic property angle, but from pressure wave
Dynamic angle is also rarely found come the invention for improving accumulator performance.Crucial portion of the accumulator as flow recycling and supplement in system
Part especially executes in the biggish hydraulic system of velocity perturbation in hydraulic cylinder, it is insufficient to can make up for it hydraulic pump moment flow
Defect.Under normal conditions, the hydraulic pump output flow of hydraulic system meets the average flow rate of system, system instantaneous flow and liquid
Compensation is adjusted by accumulator in the difference of press pump flow.In system stable operation, although pressure in accumulator in the presence of
Certain fluctuation, but pressure oscillation value is stablized within the scope of one.Accumulator, which can be stablized, at this time plays flow-compensated work
With.But when hydraulic cylinder executes frequency and increases suddenly, since the factors such as inertia, current limit exist, hydraulic pump speed regulation process
The regular hour is needed, is met under new working frequency before the average flow rate of system again in hydraulic pump flow, accumulator can be right
System flow demand carries out continued compensation, while the pressure in accumulator can continue to decline and beyond the pressure stablized when fluctuating
Range.In this case, the pressure big ups and downs in the system short time will affect accurately controlling for control valve.
Summary of the invention
Technical problem solved by the present invention is the present invention relates to a kind of pressure oscillations in order to solve the deficiencies in the prior art
Lesser combined piston accumulator.
The technical scheme is that a kind of lesser combined piston accumulator of pressure oscillation, including secondary interface,
Two sap cavity pipes, main interface, sap cavity end cap, sap cavity bearing bracket stand, switching cam, sap cavity piston, accumulator cylinder, air cavity piston, gas
Chamber bearing rod, air cavity end cap and gas nozzle；The sap cavity piston and air cavity piston are located inside accumulator cylinder, accumulator cylinder position
Inside switching cam, the both ends of sap cavity end cap and air cavity end cap and accumulator cylinder are connected, and sap cavity end cap and accumulator cylinder
Body end is sealed between face, is sealed between air cavity end cap and accumulator cylinder end face；Sap cavity end cap and switching cam end
Thrust bearing is housed between face, thrust bearing, sap cavity end cap and air cavity end cap are housed between air cavity end cap and switching cam end face
Limit the axial movement relative to accumulator cylinder of switching cam.
A further technical solution of the present invention is: the sap cavity bearing bracket stand is fixedly connected by screw with sap cavity piston, gas
Chamber piston is passed through from through-hole being radially provided with through-hole, air cavity bearing rod, and accumulator cylinder is provided with straight trough, sap cavity along axisymmetrical
The both ends of bearing bracket stand and the both ends of air cavity bearing rod are pierced by from straight trough；Sap cavity bearing bracket stand both ends are equipped with needle bearing, air cavity
Bearing rod both ends are equipped with needle bearing, and needle bearing is located in accumulator cylinder straight trough, needle bearing and meanwhile with switching cam
Cam contour is in contact；Nut is installed all to limit the axial fortune of needle bearing in sap cavity bearing bracket stand both ends and air cavity bearing rod both ends
It is dynamic.
It a further technical solution of the present invention is: the center line of the second sap cavity pipe and sap cavity end cap is overlapped, and is solid
Fixed connection, is equipped with end-face seal ring between the second sap cavity pipe and sap cavity end cap, sap cavity end cap is equipped with guide ledges, liquid on centerline
Chamber piston is equipped with extending shaft one in the axial direction, and extending shaft one passes through from the guide ledges of sap cavity end cap and in the second liquid
In lumen, extending shaft one and guide ledges are sealed, so that the pressure of the first sap cavity and the second sap cavity is mutually indepedent；Sap cavity is living
The plug other end is machined with blind hole, and blind hole is provided with linear bearing, and air cavity piston is equipped with extending shaft close to one end of air cavity bearing rod
Two, the end of extending shaft two is located in linear bearing.
A further technical solution of the present invention is: the sap cavity end cap sidewalls are equipped with through-hole, main interface is worn from the through-hole
Out through piping connection into hydraulic system.
Invention effect
The technical effects of the invention are that: by cam mechanism by accumulator fluid pressure and gas pressure be separated by
From changing the Pressure Variation of liquid in accumulator using the nonlinear characteristic of cam mechanism, so that accumulator be made to hold
Continuous when externally carrying out flow-compensated, the pressure inside accumulator can be stablized in a certain range.The present invention overcomes tradition to store
Energy device is pressed inside the accumulator as caused by hydraulic pump flow control lag when becoming larger valve control hydraulic system execution frequency moment
The violent defect of fluctuation reduces the adverse effect that pressure oscillation controls hydraulic valve.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Fig. 2 is the integrally-built perspective view of the explosion of the present invention.
Fig. 3 is the cross-sectional view after the present invention hiding steering cam, needle bearing and nut along center line.
Fig. 4 is the schematic diagram that the present invention is connected into hydraulic system.
1. 6. switching cam of secondary interface 2. second sap cavity pipe, 3. main interface, 4. sap cavity end cap, 5. thrust bearing, 7. liquid
12. accumulator cylinder of chamber piston 8. sap cavity bearing bracket stand, 9. needle bearing, 10. nut, 11. end-face seal ring, 13. air cavity is living
Fill in 14. air cavity bearing rod, 15. air cavity end cap, 16. 17. second sap cavity of gas nozzle, 18. extending shaft, one 19. guide ledges 20.
One sap cavity, 21. linear bearing, 22. extending shaft, 2 23. straight trough, 24. displacement sensor, 25. solenoid directional control valve, 26. overflow valve
Specific embodiment
Referring to Fig. 1-Fig. 4, the purpose of the present invention is to provide a kind of lesser combined piston type accumulation of energys of pressure oscillation
Device, the accumulator are convex including secondary interface, the second sap cavity pipe, main interface, sap cavity end cap, thrust bearing, end-face seal ring, conversion
Wheel, sap cavity piston, needle bearing, nut, sap cavity bearing bracket stand, accumulator cylinder, air cavity piston, air cavity bearing rod, air cavity end cap
And gas nozzle, wherein sap cavity piston and air cavity piston are located inside accumulator cylinder, and two-piston passes through sealing ring and accumulator cylinder
Body keeps sealing, and accumulator cylinder is located inside switching cam, and sap cavity end cap and air cavity end cap pass through screw thread and accumulator cylinder
Both ends be connected, between sap cavity end cap and accumulator cylinder end face be equipped with end-face seal ring, air cavity end cap and accumulator cylinder
End-face seal ring is housed between end face, thrust bearing, air cavity end cap and conversion are housed between sap cavity end cap and switching cam end face
Thrust bearing is housed between cam face, sap cavity end cap and air cavity end cap limit switching cam relative to accumulator cylinder
It is axially moved.
The sap cavity bearing bracket stand is fixedly connected by screw with sap cavity piston, and air cavity piston is being radially provided with through-hole, air cavity
Bearing rod is passed through from through-hole, and accumulator cylinder is provided with straight trough, the both ends of sap cavity bearing bracket stand and air cavity bearing rod along axisymmetrical
Both ends be pierced by from straight trough；Sap cavity bearing bracket stand both ends are equipped with needle bearing, and air cavity bearing rod both ends are equipped with needle bearing, rolling
Needle bearing is located in accumulator cylinder straight trough, and needle bearing is in contact with the cam contour of switching cam simultaneously；Sap cavity bearing bracket stand
Nut is installed all to limit the axial movement of needle bearing in both ends and air cavity bearing rod both ends.
The center line of the second sap cavity pipe and sap cavity end cap is overlapped, and the second sap cavity pipe is fixed by screw and sap cavity end cap
Connection, is equipped with end-face seal ring between the second sap cavity pipe and sap cavity end cap, sap cavity end cap is equipped with guide ledges, sap cavity on centerline
Piston is equipped with extending shaft one in the axial direction, and extending shaft one passes through from the guide ledges of sap cavity end cap and in the second sap cavity
In pipe, extending shaft one and guide ledges are sealed by sealing ring, so that it is guaranteed that the pressure of the first sap cavity and the second sap cavity is mutually only
It is vertical；The sap cavity piston other end is machined with blind hole, and blind hole is provided with linear bearing, and air cavity piston is set close to one end of air cavity bearing rod
There is extending shaft two, the end of extending shaft two is located in linear bearing.
The pair interface is connected on the second sap cavity pipe by thread seal, and main interface is connected to accumulation of energy by thread seal
On device cylinder body, gas nozzle is connected on air cavity end cap by thread seal.
The side wall of the sap cavity end cap is equipped with through-hole, and main interface is pierced by through piping connection to hydraulic system from the through-hole
In.
The switching cam includes sap cavity piston cam contour and air cavity piston cam contour, in order to make piston by
Power is uniform, and every kind of cam contour processes two along axisymmetrical, and cam profile is according to precharge of gas pressure, pre- inflation in air cavity
The parameters such as body volume, gas compression rule and sap cavity preset pressure are calculated.Assuming that accumulator the first sap cavity piston is effective
Cross-sectional area is Af, air cavity piston effective cross section product is Ag, one effective cross section of extending shaft product is A1, pre- inflation in air cavity
Body pressure is Pg0, precharge of gas pressure is Vg0, piston friction power is f, and the radius of cam is R, accumulator sap cavity preset pressure Pf,
The equation of sap cavity piston cam contour is y1, the equation of air cavity piston cam contour is y2, it is θ that cam, which rotates angle, usually
In the case of equation y1It can be set to the equation y of constant-slope1=kR θ.Consider from energy point of view, it is worked in entire accumulator
Cheng Zhong, the energy for being stored in sap cavity should be equal to the energy for being stored in air cavity, according to energy-balance equation
During accumulator rapid operation, gas compression processes can regard adiabatic process as, at this time n=1.4, at this time
The equation of air cavity piston cam contour can solve
Meanwhile one effective cross section of extending shaft product A1For
As shown in Figure 1, Figure 2 and Figure 3, sap cavity piston 7 and air cavity piston 13 are located inside accumulator cylinder 12, and two-piston is equal
It keeps sealing by sealing ring and accumulator cylinder 12, accumulator cylinder 12 is located inside switching cam 6, and sap cavity end cap 4 is gentle
Chamber end cap 15 is connected by screw thread with the both ends of accumulator cylinder 12, and sap cavity end cap 4 and accumulator cylinder fill between 12 end face
Have an end-face seal ring 11, end-face seal ring 11 be housed between 12 end face of air cavity end cap 15 and accumulator cylinder, sap cavity end cap 4 with turn
It changes and thrust bearing 5 is housed between 6 end face of cam, thrust bearing 5, sap cavity are housed between 6 end face of air cavity end cap 15 and switching cam
End cap 4 and air cavity end cap 15 limit axial movement of the switching cam 6 relative to accumulator cylinder 12.Sap cavity bearing bracket stand 8 passes through
Screw is fixedly connected with sap cavity piston 7, and air cavity piston 13 is passed through from through-hole being radially provided with through-hole, air cavity bearing rod 14, is stored
Energy device cylinder body 12 is provided with straight trough 22 along axisymmetrical, and the both ends of sap cavity bearing bracket stand 8 and the both ends of air cavity bearing rod 14 are from straight trough
It is pierced by 22；8 both ends of sap cavity bearing bracket stand are equipped with needle bearing 9, and 14 both ends of air cavity bearing rod are equipped with needle bearing 9, needle bearing 9
In the straight trough 22 of accumulator cylinder 12, needle bearing 9 is in contact with the cam contour of switching cam 6 simultaneously；Sap cavity bearing
Nut 10 is installed all to limit the axial movement of needle bearing 9 in 8 both ends of frame and 14 both ends of air cavity bearing rod.Second sap cavity pipe 2 is logical
It crosses screw to be fixedly connected with sap cavity end cap 4, end-face seal ring is equipped between the second sap cavity pipe and sap cavity end cap, sap cavity end cap 4 is in
Heart line is equipped with guide ledges 19, and sap cavity piston 7 is in the axial direction equipped with extending shaft 1, and extending shaft 1 is from sap cavity end cap
It passes through and is in the second sap cavity pipe 2 in 4 guide ledges 19,7 other end of sap cavity piston is machined with blind hole, and blind hole is provided with directly
Spool holds 20, and air cavity piston 13 is equipped with extending shaft 2 21 close to one end of air cavity bearing rod 14, and the end of extending shaft 2 21 is located at
In linear bearing 20.Secondary interface 1 is connected on the second sap cavity pipe 2 by thread seal, and main interface 3 is connected to by thread seal
In accumulator cylinder 12, gas nozzle 16 is connected on air cavity end cap 15 by thread seal.The side wall of sap cavity end cap 4 is equipped with through-hole,
Main interface 3 is pierced by through piping connection into hydraulic system from the through-hole.
As shown in figure 4, main interface of the invention is directly accessed in the oil feeding line of hydraulic system in hydraulic system, this
The secondary interface of invention is accessed in oil feeding line by a solenoid directional control valve 25, and another oil circuit of solenoid directional control valve 25 and oil
Case is connected；The present invention connects a displacement sensor 24 also on sap cavity bearing bracket stand 8 simultaneously, to detect the liquid inside accumulator
Body capacity.Overflow valve 26 is used as safety valve in Fig. 4, when the fuel delivery for having stored full liquid and pump in accumulator of the present invention
Greater than when flow, overflow valve 26 is opened to play the role of safety valve needed for hydraulic cylinder.When hydraulic system is to accumulation of energy of the present invention
When device filling liquid, solenoid directional control valve 25 is in position shown in Fig. 4, and the first sap cavity 20 and the second sap cavity 17 are all connected to fuel feeding oil at this time
On the road, by the rotary compression gas of switching cam 6, while making the first sap cavity and using the nonlinear characteristic of switching cam 6
The fluid pressure of two sap cavities is kept compared with minor swing；When accumulator of the present invention is to hydraulic system fuel feeding, solenoid directional control valve 25 switches
To another location, the second sap cavity 17 is connected with fuel tank at this time, pushes switching cam 6 to reversely rotate by compressed gas, while benefit
The fluid pressure of the first sap cavity 20 is kept compared with minor swing with the nonlinear characteristic of switching cam 6.The present invention passes through electromagnetic switch
The handoff functionality of valve 25 realizes the pressure change in the second sap cavity 17, offsets accumulation of energy by the pressure difference on extending shaft 1
Frictional force loss in device piston two-way process realizes that accumulator is worked so that it is guaranteed that the pressure in the first sap cavity 20 is stablized
The lesser purpose of pressure oscillation in journey.
Claims (4)
1. a kind of lesser combined piston accumulator of pressure oscillation, which is characterized in that including secondary interface (1), the second sap cavity
Manage (2), main interface (3), sap cavity end cap (4), sap cavity bearing bracket stand (8), switching cam (6), sap cavity piston (7), accumulator cylinder
(12), air cavity piston (13), air cavity bearing rod (14), air cavity end cap (15) and gas nozzle (16)；The sap cavity piston (7) and air cavity
Piston (13) is located at accumulator cylinder (12) inside, and accumulator cylinder (12) is located at switching cam (6) inside, sap cavity end cap (4)
Be connected with the both ends of air cavity end cap (15) and accumulator cylinder (12), and sap cavity end cap (4) and accumulator cylinder (12) end face it
Between be sealed, be sealed between air cavity end cap (15) and accumulator cylinder (12) end face；Sap cavity end cap (4) and switching cam
(6) thrust bearing is housed between end face, thrust bearing, sap cavity end are housed between air cavity end cap (15) and switching cam (6) end face
Lid (4) and air cavity end cap (15) limit the axial movement relative to accumulator cylinder (12) of switching cam (6).
2. a kind of lesser combined piston accumulator of pressure oscillation as described in claim 1, which is characterized in that the liquid
Chamber bearing bracket stand (8) is fixedly connected by screw with sap cavity piston (7), and air cavity piston (13) is being radially provided with through-hole, air cavity bearing
Bar (14) is passed through from through-hole, and accumulator cylinder (12) is provided with straight trough, the both ends of sap cavity bearing bracket stand (8) and air cavity along axisymmetrical
The both ends of bearing rod (14) are pierced by from straight trough；Sap cavity bearing bracket stand (8) both ends are equipped with needle bearing, air cavity bearing rod (14) two
End is equipped with needle bearing, and needle bearing is located in accumulator cylinder (12) straight trough, and needle bearing is convex with switching cam (6) simultaneously
Wheel profile is in contact；Nut is installed all to limit needle bearing in sap cavity bearing bracket stand (8) both ends and air cavity bearing rod (14) both ends
It is axially moved.
3. a kind of lesser combined piston accumulator of pressure oscillation as described in claim 1, which is characterized in that described the
The center line of two sap cavity pipes (2) and sap cavity end cap (4) is overlapped, and to be fixedly connected, between the second sap cavity pipe (2) and sap cavity end cap
(4) it is equipped with end-face seal ring, sap cavity end cap (4) is equipped with guide ledges on centerline, and sap cavity piston is equipped in the axial direction
Extending shaft one, extending shaft one pass through from the guide ledges of sap cavity end cap (4) and in the second sap cavity pipes (2), extending shaft one
It is sealed with guide ledges, so that the pressure of the first sap cavity and the second sap cavity is mutually indepedent；The processing of sap cavity piston (7) other end
There is blind hole, blind hole is provided with linear bearing, and air cavity piston (13) is equipped with extending shaft two close to the one end of air cavity bearing rod (14), prolongs
The end of long axis two is located in linear bearing.
4. a kind of lesser combined piston accumulator of pressure oscillation as described in claim 1, which is characterized in that the liquid
Chamber end cap (4) side wall is equipped with through-hole, and main interface is pierced by through piping connection into hydraulic system from the through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910373926.8A CN110145502B (en) | 2019-05-07 | 2019-05-07 | Combined piston type energy accumulator with small pressure fluctuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910373926.8A CN110145502B (en) | 2019-05-07 | 2019-05-07 | Combined piston type energy accumulator with small pressure fluctuation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145502A true CN110145502A (en) | 2019-08-20 |
| CN110145502B CN110145502B (en) | 2020-05-12 |
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ID=67594692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910373926.8A Active CN110145502B (en) | 2019-05-07 | 2019-05-07 | Combined piston type energy accumulator with small pressure fluctuation |
Country Status (1)
| Country | Link |
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| CN (1) | CN110145502B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765224A (en) * | 2020-06-03 | 2020-10-13 | 成都天高机电设备有限公司 | Diaphragm compressor, pump and hydraulic plunger pump of balance cylinder mechanism |
| CN116066428A (en) * | 2023-04-06 | 2023-05-05 | 浙江大学 | Hydraulic robot energy storage device with adjustable output power |
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| EP0119555A1 (en) * | 1983-03-11 | 1984-09-26 | INDUSTRIE PIRELLI S.p.A. | Energy accumulator unit |
| CN2900322Y (en) * | 2006-01-26 | 2007-05-16 | 胡冬喜 | Hydraulic booster vehicle |
| JP2008531956A (en) * | 2005-03-07 | 2008-08-14 | ユナイテッド ステイツ エンバイロメンタル プロテクション エージェンシー | Sleeve type accumulator with built-in light weight and low permeability piston |
| CN101476571A (en) * | 2009-01-24 | 2009-07-08 | 燕山大学 | Parameter self-adapting and regulation leather bag type hydraulic accumulator |
| CN101832303A (en) * | 2010-05-12 | 2010-09-15 | 河北华北石油荣盛机械制造有限公司 | Piston-type deep sea water pressure compensation energy accumulator |
| CN202194870U (en) * | 2011-06-28 | 2012-04-18 | 四川金星石油化工机械设备有限公司 | Piston accumulator |
| CN103213629A (en) * | 2013-04-22 | 2013-07-24 | 西北工业大学 | Hydraulic power device of bear-loading hopping robot |
| CN106286430A (en) * | 2016-10-17 | 2017-01-04 | 山河智能装备股份有限公司 | A kind of piston accumulator |
-
2019
- 2019-05-07 CN CN201910373926.8A patent/CN110145502B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0119555A1 (en) * | 1983-03-11 | 1984-09-26 | INDUSTRIE PIRELLI S.p.A. | Energy accumulator unit |
| JP2008531956A (en) * | 2005-03-07 | 2008-08-14 | ユナイテッド ステイツ エンバイロメンタル プロテクション エージェンシー | Sleeve type accumulator with built-in light weight and low permeability piston |
| CN2900322Y (en) * | 2006-01-26 | 2007-05-16 | 胡冬喜 | Hydraulic booster vehicle |
| CN101476571A (en) * | 2009-01-24 | 2009-07-08 | 燕山大学 | Parameter self-adapting and regulation leather bag type hydraulic accumulator |
| CN101832303A (en) * | 2010-05-12 | 2010-09-15 | 河北华北石油荣盛机械制造有限公司 | Piston-type deep sea water pressure compensation energy accumulator |
| CN202194870U (en) * | 2011-06-28 | 2012-04-18 | 四川金星石油化工机械设备有限公司 | Piston accumulator |
| CN103213629A (en) * | 2013-04-22 | 2013-07-24 | 西北工业大学 | Hydraulic power device of bear-loading hopping robot |
| CN106286430A (en) * | 2016-10-17 | 2017-01-04 | 山河智能装备股份有限公司 | A kind of piston accumulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765224A (en) * | 2020-06-03 | 2020-10-13 | 成都天高机电设备有限公司 | Diaphragm compressor, pump and hydraulic plunger pump of balance cylinder mechanism |
| CN116066428A (en) * | 2023-04-06 | 2023-05-05 | 浙江大学 | Hydraulic robot energy storage device with adjustable output power |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110145502B (en) | 2020-05-12 |
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