CN105782137B - A kind of super-pressure accumulator - Google Patents
A kind of super-pressure accumulator Download PDFInfo
- Publication number
- CN105782137B CN105782137B CN201610255092.7A CN201610255092A CN105782137B CN 105782137 B CN105782137 B CN 105782137B CN 201610255092 A CN201610255092 A CN 201610255092A CN 105782137 B CN105782137 B CN 105782137B
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- China
- Prior art keywords
- hydraulic cylinder
- pressure
- accumulator
- piston
- pressure hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000002775 capsule Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- 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)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
A kind of super-pressure accumulator, mainly it is made up of accumulator, the first connecting line, normal pressure hydraulic cylinder, the piston rod with spring, ultrahigh-pressure hydraulic cylinder and the second connecting line；The oil inlet of accumulator connects with one end of the first connecting line, and the other end of the first connecting line connects with the rodless cavity of normal pressure hydraulic cylinder；Connected between the piston of normal pressure hydraulic cylinder and the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder by a piston rod with spring, the rodless cavity of ultrahigh-pressure hydraulic cylinder connects with one end of the second connecting line, and the other end of the second connecting line connects with Superhigh Pressure Hydraulic System.The present invention has the advantages that cost is low, applicable different system.
Description
Technical field
The present invention relates to ultrahigh-pressure hydraulic technical field, especially a kind of super-pressure accumulator.
Background technology
In recent years, the industrialization system using hydraulic system as power drive system is more and more common, and with science
The rapid development of technology, to high-pressure hydraulic even ultrahigh-pressure hydraulic in industrial production, engineering machinery and military field
The needs of system are more and more urgent.
Accumulator is critically important energy-storage travelling wave tube in hydraulic system as hydraulic pressure auxiliary important in hydraulic system.
In hydraulic system, accumulator plays stocking system excess pressure fluid, discharges used for system when needed, to reach
The purpose of energy saving of system.Another important function of accumulator is exactly the system that reduces in compression shock caused by normal work
And pressure fluctuation.In addition, accumulator plays an important role in protection system normal operation, reduction vibration and noise etc..
With the height that sophisticated equipment is increasing, common for the demand of high-pressure hydraulic and Superhigh Pressure Hydraulic System
Pressure accumulator far can not meet the requirement of current hydraulic system, and a kind of super-pressure suitable for Superhigh Pressure Hydraulic System stores
The development and application of energy device becomes a new study hotspot.
The content of the invention
Present invention aims at provide one kind suitable for Superhigh Pressure Hydraulic System and can reduce compression shock and pressure fluctuation
Super-pressure accumulator.
To achieve the above object, following technical scheme is employed：Super-pressure accumulator of the present invention is by accumulator, first
Connecting line, normal pressure hydraulic cylinder, the piston rod with spring, ultrahigh-pressure hydraulic cylinder and the second connecting line composition；Accumulator bag
Include housing, charge valve, gas-liquid slider and oil inlet, charge valve and be arranged on case top, the middle part in housing sets gas-liquid
Slider, oil inlet is provided with the bottom of housing；Normal pressure hydraulic cylinder is made up of cylinder body and piston；Ultrahigh-pressure hydraulic cylinder is by resistance to cylinder pressure
Body and pressure-resistant piston composition；
The oil inlet of accumulator connects with one end of the first connecting line, the other end and the normal pressure hydraulic pressure of the first connecting line
The rodless cavity connection of cylinder；Pass through the work with spring between the piston of normal pressure hydraulic cylinder and the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder
Stopper rod connects, and the rodless cavity of ultrahigh-pressure hydraulic cylinder connects with one end of the second connecting line, the other end of the second connecting line and
Superhigh Pressure Hydraulic System connects.
Further, the piston rod with spring is sequentially connected and formed by body of rod A, compression spring and body of rod B, body of rod A
One end is connected with the piston of normal pressure hydraulic cylinder, and body of rod B one end is connected with the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder.
Further, the accumulator is capsule every formula accumulator or piston accumulator.
Further, the normal pressure hydraulic cylinder is the hydraulic cylinder that piston area is big, piston stroke is short；Ultrahigh-pressure hydraulic cylinder is
Piston area is small, the hydraulic cylinder of piston stroke length.
Compared with prior art, the invention has the advantages that：
1st, simple in construction, production cost is low, easy to control；
2nd, the piston rod center section of accumulator uses compression spring material, by the spring of adapted difference coefficient of elasticity,
The range of super-pressure accumulator can be changed, suitable for multiple work systems.
Brief description of the drawings
Fig. 1 is the overall structure sketch of super-pressure accumulator of the present invention.
Drawing reference numeral：1- housings；2- charge valves；3- gas-liquid sliders；4- oil inlets；5- cylinder bodies；6- pistons；Work that 7- is pressure-resistant
Plug；8- is pressure-resistant cylinder body；Piston rods of the 9- with spring；The connecting lines of 10- first；The connecting lines of 11- second.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, super-pressure accumulator of the present invention is by accumulator, the first connecting line 10, normal pressure hydraulic cylinder, band
Piston rod 9, ultrahigh-pressure hydraulic cylinder and the second connecting line 11 of spring form.
Accumulator includes housing 1, charge valve 2, gas-liquid slider 3 and oil inlet 4, and charge valve is arranged on case top,
Middle part in housing sets gas-liquid slider, and oil inlet is provided with the bottom of housing；Accumulator housing is divided into by gas-liquid slider
Air chamber and liquid room, air chamber are full of inert gas by charge valve, and oil inlet is connected by plain tubing with the rodless cavity of normal pressure hydraulic cylinder,
The topping up and discharge opeing process of accumulator can be completed by oil inlet.
Normal pressure hydraulic cylinder is made up of cylinder body 5 and piston 6；Ultrahigh-pressure hydraulic cylinder is made up of pressure-resistant cylinder body 8 and pressure-resistant piston 7.
Normal pressure hydraulic cylinder is the hydraulic cylinder that piston area is relatively large, piston stroke is relatively short；Ultrahigh-pressure hydraulic cylinder is piston area
Hydraulic cylinder relatively small, piston stroke is relatively long.
Accumulator can be capsule every formula accumulator or piston accumulator.The one of the oil inlet of accumulator and the first connecting line
End connection, the other end of the first connecting line connect with the rodless cavity of normal pressure hydraulic cylinder；The piston and super-pressure of normal pressure hydraulic cylinder
Connected between the pressure-resistant piston of hydraulic cylinder by a piston rod with spring, the rodless cavity of ultrahigh-pressure hydraulic cylinder is connected with second
One end connection of pipeline, the other end of the second connecting line connect with Superhigh Pressure Hydraulic System.
The piston rod with spring is sequentially connected and formed by body of rod A, compression spring and body of rod B, body of rod A one end and normal pressure
The piston of hydraulic cylinder is connected, and body of rod B one end is connected with the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder.Piston rod center section with spring
Purpose using compression spring material is the stream in order to reach accumulator topping up often between pressure cylinder and ultrahigh-pressure hydraulic cylinder
Amount balance.
The present invention the course of work approximately as：
1st, the filling process of super-pressure accumulator --- the second connecting line is connected with hydraulic system, and super-pressure of the present invention stores
After energy device participates in hydraulic work system, the working media of system enters the rodless cavity of the ultrahigh-pressure hydraulic cylinder of super-pressure accumulator,
When system pressure raises, the pressure of working media also increases in the rodless cavity of ultrahigh-pressure hydraulic cylinder, normal pressure hydraulic cylinder
The pressure-resistant piston of piston, the piston rod with spring and ultrahigh-pressure hydraulic cylinder working media in the rodless cavity of ultrahigh-pressure hydraulic cylinder is high
Pressure pressure effect under to normal pressure hydraulic cylinder move, under the promotion of the piston rod with spring the piston of normal pressure hydraulic cylinder also therewith to
The rodless cavity of normal pressure hydraulic cylinder moves, and the working media in normal pressure hydraulic cylinder rodless cavity is under the promotion of piston by the first connecting tube
Road, capsule flow into the liquid room of accumulator every the oil inlet of formula accumulator or piston accumulator, as working media is in accumulator liquid
Increasing in room, the working medium pressure rise in accumulator liquid room, capsule is every in formula accumulator or piston accumulator liquid room
Working media promotes gas-liquid slider to be moved to air chamber, and capsule is every the inert gas quilt in formula accumulator or piston accumulator air chamber
After compression volume diminish, pressure rise.In whole process, capsule is every one level pressure of formula accumulator or piston accumulator indoor storage
The working media of power and volume, referred to as topping up stage.
2nd, the discharge opeing process of super-pressure accumulator --- the second connecting line is connected with hydraulic system, and super-pressure of the present invention stores
After energy device participates in hydraulic work system, when system pressure is less than the pressure of the working media in ultrahigh-pressure hydraulic cylinder rodless cavity,
Capsule is every the gas-liquid slider of formula accumulator or piston accumulator in capsule every formula accumulator or piston accumulator air chamber gas pressure
Moved in the presence of power to liquid room, capsule is every the working media in formula accumulator or piston accumulator liquid room in gas-liquid slider
The lower pressure rise of effect, the rodless cavity of normal pressure hydraulic cylinder is flowed into by oil inlet, the first connecting line, with normal pressure hydraulic cylinder without
The pressure rise of working media in rod cavity, the piston of normal pressure hydraulic cylinder, the piston rod with spring and ultrahigh-pressure hydraulic cylinder it is resistance to
Pressure piston is promoted the rodless cavity to ultrahigh-pressure hydraulic cylinder to move, with working medium pressure in ultrahigh-pressure hydraulic cylinder rodless cavity
Raise, the working media in ultrahigh-pressure hydraulic cylinder rodless cavity discharges to hydraulic system, until reaching new poised state.Above mistake
Cheng Zhong, capsule are emitted the working media stored by the topping up stage is some or all of every formula accumulator or piston accumulator
For system use, referred to as discharge opeing process.
Super-pressure accumulator proposed by the invention, the hydraulic system of sophisticated equipment is met to super-pressure accumulator
Demand.This super-pressure accumulator structure is simple, and super-pressure is realized using the Normal hydraulic part such as conventional accumulator, hydraulic cylinder
The effect of accumulator；Common accumulator, normal pressure hydraulic cylinder and connecting line in this super-pressure accumulator are all common
Hydraulic Elements, the only material of ultrahigh-pressure hydraulic cylinder and processing technology need the concrete condition according to applicable Superhigh Pressure Hydraulic System
To determine；The center section of piston rod in this super-pressure accumulator uses compression spring structure, can be different by adapted
The spring of coefficient of elasticity, to change the range of super-pressure accumulator, reach the purpose that an accumulator is applied to multiple systems.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (1)
- A kind of 1. super-pressure accumulator, it is characterised in that：The super-pressure accumulator is by accumulator, the first connecting line, normal pressure Hydraulic cylinder, the piston rod with spring, ultrahigh-pressure hydraulic cylinder and the second connecting line composition；Accumulator include housing, charge valve, Gas-liquid slider and oil inlet, charge valve are arranged on case top, and the middle part in housing sets gas-liquid slider, in housing Bottom is provided with oil inlet；Normal pressure hydraulic cylinder is made up of cylinder body and piston；Ultrahigh-pressure hydraulic cylinder is by pressure-resistant cylinder body and pressure-resistant piston group Into；The oil inlet of accumulator connects with one end of the first connecting line, the other end and the normal pressure hydraulic cylinder of the first connecting line Rodless cavity connects；Pass through a piston rod with spring between the piston of normal pressure hydraulic cylinder and the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder Connection, the rodless cavity of ultrahigh-pressure hydraulic cylinder connect with one end of the second connecting line, the other end and superelevation of the second connecting line Hydraulic fluid presses system connectivity；The piston rod with spring is sequentially connected and formed by body of rod A, compression spring and body of rod B, body of rod A mono- End is connected with the piston of normal pressure hydraulic cylinder, and body of rod B one end is connected with the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610255092.7A CN105782137B (en) | 2016-04-22 | 2016-04-22 | A kind of super-pressure accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610255092.7A CN105782137B (en) | 2016-04-22 | 2016-04-22 | A kind of super-pressure accumulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105782137A CN105782137A (en) | 2016-07-20 |
| CN105782137B true CN105782137B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610255092.7A Expired - Fee Related CN105782137B (en) | 2016-04-22 | 2016-04-22 | A kind of super-pressure accumulator |
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| Country | Link |
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| CN (1) | CN105782137B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084162B (en) * | 2017-05-12 | 2018-10-09 | 武汉理工大学 | A kind of input-output characteristic controllable hydraulic energy storage equipment |
| TWI751380B (en) * | 2018-09-25 | 2022-01-01 | 祥偉自動科技股份有限公司 | Hydraulic buffer positioning and topping system |
| CN111412186A (en) * | 2020-03-23 | 2020-07-14 | 武汉理工大学 | Hydraulic energy intelligent storage and accurate transmission device |
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|---|---|---|---|---|
| JP2003144856A (en) * | 2001-11-12 | 2003-05-20 | Sasakura Engineering Co Ltd | Energy recovery apparatus for reverse osmotic membrane apparatus |
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2016
- 2016-04-22 CN CN201610255092.7A patent/CN105782137B/en not_active Expired - Fee Related
Patent Citations (11)
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|---|---|---|---|---|
| CN1572392A (en) * | 2003-05-09 | 2005-02-02 | 东芝机械株式会社 | Injection system and casting method of die casting machine |
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| DE202009018583U1 (en) * | 2009-08-19 | 2012-02-28 | Hemscheidt Fahrwerktechnik Gmbh & Co. Kg | Hydropneumatic piston accumulator |
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| CN203223265U (en) * | 2013-01-11 | 2013-10-02 | 江苏公大动力技术有限公司 | Overflow valve and actuator |
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| CN105782137A (en) | 2016-07-20 |
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