CN105782137A - Ultrahigh-pressure accumulator - Google Patents
Ultrahigh-pressure accumulator Download PDFInfo
- Publication number
- CN105782137A CN105782137A CN201610255092.7A CN201610255092A CN105782137A CN 105782137 A CN105782137 A CN 105782137A CN 201610255092 A CN201610255092 A CN 201610255092A CN 105782137 A CN105782137 A CN 105782137A
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- China
- Prior art keywords
- hydraulic cylinder
- accumulator
- piston
- pressure hydraulic
- ultrahigh
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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
- F15B1/04—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
Abstract
An ultrahigh-pressure accumulator mainly comprises an accumulator, a first connecting pipeline, a normal-pressure hydraulic cylinder, a piston rod provided with a spring, an ultrahigh-pressure hydraulic cylinder and a second connecting pipeline, wherein an oil inlet of the accumulator communicates with one end of the first connecting pipeline, and the other end of the first connecting pipeline communicates with a rodless cavity of the normal-pressure hydraulic cylinder; a piston of the normal-pressure hydraulic cylinder is connected with a pressure-tolerant piston of the ultrahigh-pressure hydraulic cylinder trough the piston rod provided with the spring, a rodless cavity of the ultrahigh-pressure hydraulic cylinder communicates with one end of the second connecting pipeline, and the other end of the second connecting pipeline communicates with an ultrahigh-pressure hydraulic system. The ultrahigh-pressure accumulator has the advantages that the cost is low, the ultrahigh-pressure accumulator is applicable to different systems, and the like.
Description
Technical field
The present invention relates to ultrahigh-pressure hydraulic technical field, especially a kind of supertension accumulator.
Background technology
In recent years, more and more general as the industrialization system of power drive system using hydraulic system, and developing rapidly along with science and technology, in commercial production, engineering machinery and military field, the high-pressure hydraulic even needs of Superhigh Pressure Hydraulic System are more and more urgent.
Accumulator, as hydraulic pressure auxiliary important in hydraulic system, is critically important energy-storage travelling wave tube in hydraulic system.In hydraulic system, accumulator plays stocking system excess pressure fluid, discharges for system when needed, to reach the purpose of energy saving of system.The another one important function of accumulator is exactly reduce compression shock and the pressure fluctuation that system produces when normal operation.Additionally, accumulator is properly functioning in protection system, reduce vibration and noise etc. in all play an important role.
Along with sophisticated equipment is increasing for the demand of high-pressure hydraulic and Superhigh Pressure Hydraulic System, common high pressure accumulator can not meet far away the requirement of current hydraulic system, and a kind of development and application suitable in the supertension accumulator of Superhigh Pressure Hydraulic System becomes a new study hotspot.
Summary of the invention
Present invention aim at providing a kind of suitable in Superhigh Pressure Hydraulic System and the supertension accumulator that compression shock and pressure fluctuation can be reduced.
For achieving the above object, have employed techniques below scheme: supertension accumulator of the present invention is by accumulator, the first connecting line, normal pressure hydraulic cylinder, form with the piston rod of spring, ultrahigh-pressure hydraulic cylinder and the second connecting line；Accumulator includes housing, charge valve, gas-liquid slider and oil-in, and charge valve is arranged on case top, and the middle part in housing arranges gas-liquid slider, is provided with oil-in in the bottom of housing；Normal pressure hydraulic cylinder is made up of cylinder body and piston；Ultrahigh-pressure hydraulic cylinder is made up of pressure cylinder body and pressure piston；
The oil-in of accumulator and one end connection of the first connecting line, the other end of the first connecting line connects with the rodless cavity of normal pressure hydraulic cylinder；Being connected by a piston rod with spring between the piston of normal pressure hydraulic cylinder and the pressure piston of ultrahigh-pressure hydraulic cylinder, the rodless cavity of ultrahigh-pressure hydraulic cylinder and one end of the second connecting line connect, and the other end of the second connecting line connects with Superhigh Pressure Hydraulic System.
Further, the described piston rod with spring is sequentially connected with is formed by body of rod A, compression spring and body of rod B, and 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 piston of ultrahigh-pressure hydraulic cylinder.
Further, described accumulator is that capsule is every formula accumulator or piston accumulator.
Further, described normal pressure hydraulic cylinder is the hydraulic cylinder that piston area is big, piston stroke is short；Ultrahigh-pressure hydraulic cylinder is that piston area is little, the hydraulic cylinder of piston stroke length.
Compared with prior art, present invention have the advantage that
1, simple in construction, production cost is low, easy to control；
2, the piston rod mid portion of accumulator adopts compression spring materials, by the spring of adapted difference coefficient of elasticity, just can change the range of supertension accumulator, it is adaptable to multiple work systems.
Accompanying drawing explanation
Fig. 1 is the overall structure sketch of supertension accumulator of the present invention.
Drawing reference numeral: 1-housing；2-charge valve；3-gas-liquid slider；4-oil-in；5-cylinder body；6-piston；7-is pressure piston；8-is pressure cylinder body；The 9-piston rod with spring；10-the first connecting line；11-the second connecting line.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described:
As it is shown in figure 1, supertension accumulator of the present invention is made up of accumulator, the first connecting line 10, normal pressure hydraulic cylinder, piston rod 9 with spring, ultrahigh-pressure hydraulic cylinder and the second connecting line 11.
Accumulator includes housing 1, charge valve 2, gas-liquid slider 3 and oil-in 4, and charge valve is arranged on case top, and the middle part in housing arranges gas-liquid slider, is provided with oil-in in the bottom of housing；Accumulator housing is divided into air chamber and liquid chamber by gas-liquid slider, and air chamber is full of noble gas by charge valve, and oil-in is connected by the rodless cavity of plain tubing with normal pressure hydraulic cylinder, and topping up and the discharge opeing process of accumulator can be completed by oil-in.
Normal pressure hydraulic cylinder is made up of cylinder body 5 and piston 6；Ultrahigh-pressure hydraulic cylinder is made up of pressure cylinder body 8 and pressure 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 the hydraulic cylinder that piston area is relatively small, piston stroke is relatively long.
Accumulator can be that capsule is every formula accumulator or piston accumulator.The oil-in of accumulator and one end connection of the first connecting line, the other end of the first connecting line connects with the rodless cavity of normal pressure hydraulic cylinder；Being connected by a piston rod with spring between the piston of normal pressure hydraulic cylinder and the pressure piston of ultrahigh-pressure hydraulic cylinder, the rodless cavity of ultrahigh-pressure hydraulic cylinder and one end of the second connecting line connect, and the other end of the second connecting line connects with Superhigh Pressure Hydraulic System.
The described piston rod with spring is sequentially connected with is formed by body of rod A, compression spring and body of rod B, and 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 piston of ultrahigh-pressure hydraulic cylinder.That piston rod mid portion with spring adopts compression spring materials in order that the flow equilibrium that reaches between accumulator topping up pressure cylinder often and ultrahigh-pressure hydraulic cylinder.
The work process of the present invention approximately as:
null1、Filling process second connecting line of supertension accumulator is connected with hydraulic system，After supertension accumulator of the present invention participates in hydraulic work system，The working media of system enters the rodless cavity of the ultrahigh-pressure hydraulic cylinder of supertension accumulator，When system pressure raises，In the rodless cavity of ultrahigh-pressure hydraulic cylinder, the pressure of working media also increases，The piston of normal pressure hydraulic cylinder、Piston rod and the pressure piston of ultrahigh-pressure hydraulic cylinder with spring move to normal pressure hydraulic cylinder under the effect of working media high-pressure in the rodless cavity of ultrahigh-pressure hydraulic cylinder，Under the promotion with the piston rod of spring, the piston of normal pressure hydraulic cylinder also moves to the rodless cavity of normal pressure hydraulic cylinder therewith，Working media in normal pressure hydraulic cylinder rodless cavity under the promotion of piston by the first connecting line、Capsule is every the liquid chamber of the oil-in inflow accumulator of formula accumulator or piston accumulator，Along with working media increasing in accumulator liquid chamber，Working medium pressure in accumulator liquid chamber raises，Capsule working media in formula accumulator or piston accumulator liquid chamber promotes gas-liquid slider to move to air chamber，After capsule noble gas in formula accumulator or piston accumulator air chamber is compressed, volume diminishes、Pressure raises.In whole process, capsule, every formula accumulator or the piston accumulator indoor storage working media of certain pressure and volume, is called the topping up stage.
null2、Discharge opeing process second connecting line of supertension accumulator is connected with hydraulic system，After supertension accumulator of the present invention 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 moves to liquid chamber at capsule every the gas-liquid slider of formula accumulator or piston accumulator under the effect of formula accumulator or piston accumulator air chamber gas pressure，Capsule working media in formula accumulator or piston accumulator liquid chamber raises in the effect downforce of gas-liquid slider，Pass through oil-in、First connecting line flows into the rodless cavity of normal pressure hydraulic cylinder，Along with the pressure of the working media in normal pressure hydraulic cylinder rodless cavity raises，The piston of normal pressure hydraulic cylinder、Piston rod and the pressure piston of ultrahigh-pressure hydraulic cylinder with spring are promoted the rodless cavity to ultrahigh-pressure hydraulic cylinder to move，Along with the rising of working medium pressure in ultrahigh-pressure hydraulic cylinder rodless cavity，Working media in ultrahigh-pressure hydraulic cylinder rodless cavity discharges to hydraulic system，Until reaching new poised state.In above procedure, capsule uses some or all of for the working media stored by the topping up stage emitting every formula accumulator or piston accumulator for system, is called discharge opeing process.
Supertension accumulator proposed by the invention, meets the hydraulic system of the sophisticated equipment demand to supertension accumulator.This supertension accumulator structure is simple, utilizes the conventional Normal hydraulic parts such as accumulator, hydraulic cylinder to achieve the effect of supertension accumulator；Common accumulator in this supertension accumulator, normal pressure hydraulic cylinder and connecting line are all common Hydraulic Elements, and only the material of ultrahigh-pressure hydraulic cylinder and processing technique need the concrete condition according to the Superhigh Pressure Hydraulic System being suitable for determine；The mid portion of the piston rod in this supertension accumulator adopts compression spring structure, it is possible to by the spring of adapted difference coefficient of elasticity, change the range of supertension accumulator, reaches an accumulator and is applicable to the purpose of multiple systems.
Embodiment described above is only that the preferred embodiment of the present invention is described; not the scope of the present invention is defined; under the premise designing spirit without departing from the present invention; various deformation that technical scheme is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present invention is determined.
Claims (4)
1. a supertension accumulator, it is characterised in that: described supertension accumulator is by accumulator, the first connecting line, normal pressure hydraulic cylinder, form with the piston rod of spring, ultrahigh-pressure hydraulic cylinder and the second connecting line；Accumulator includes housing, charge valve, gas-liquid slider and oil-in, and charge valve is arranged on case top, and the middle part in housing arranges gas-liquid slider, is provided with oil-in in the bottom of housing；Normal pressure hydraulic cylinder is made up of cylinder body and piston；Ultrahigh-pressure hydraulic cylinder is made up of pressure cylinder body and pressure piston；
The oil-in of accumulator and one end connection of the first connecting line, the other end of the first connecting line connects with the rodless cavity of normal pressure hydraulic cylinder；Being connected by a piston rod with spring between the piston of normal pressure hydraulic cylinder and the pressure piston of ultrahigh-pressure hydraulic cylinder, the rodless cavity of ultrahigh-pressure hydraulic cylinder and one end of the second connecting line connect, and the other end of the second connecting line connects with Superhigh Pressure Hydraulic System.
2. a kind of supertension accumulator according to claim 1, it is characterized in that: the described piston rod with spring is sequentially connected with is 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 piston of ultrahigh-pressure hydraulic cylinder.
3. a kind of supertension accumulator according to claim 1, it is characterised in that: described accumulator is that capsule is every formula accumulator or piston accumulator.
4. a kind of supertension accumulator according to claim 1, it is characterised in that: described normal pressure hydraulic cylinder is the hydraulic cylinder that piston area is big, piston stroke is short；Ultrahigh-pressure hydraulic cylinder is that piston area is little, the hydraulic cylinder of piston stroke length.
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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610255092.7A CN105782137B (en) | 2016-04-22 | 2016-04-22 | A kind of super-pressure accumulator |
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| CN105782137A true CN105782137A (en) | 2016-07-20 |
| CN105782137B CN105782137B (en) | 2017-12-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084162A (en) * | 2017-05-12 | 2017-08-22 | 武汉理工大学 | A kind of input-output characteristic controllable hydraulic energy storage equipment |
| CN110939634A (en) * | 2018-09-25 | 2020-03-31 | 祥伟自动科技股份有限公司 | Oil pressure buffering positioning back-jacking system and oil pressure cooling 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107084162A (en) * | 2017-05-12 | 2017-08-22 | 武汉理工大学 | A kind of input-output characteristic controllable hydraulic energy storage equipment |
| 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 |
| CN110939634A (en) * | 2018-09-25 | 2020-03-31 | 祥伟自动科技股份有限公司 | Oil pressure buffering positioning back-jacking system and oil pressure cooling 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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| Publication number | Publication date |
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| CN105782137B (en) | 2017-12-29 |
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