CN105156371A - Energy accumulator for hydraulic system - Google Patents
Energy accumulator for hydraulic system Download PDFInfo
- Publication number
- CN105156371A CN105156371A CN201510528806.2A CN201510528806A CN105156371A CN 105156371 A CN105156371 A CN 105156371A CN 201510528806 A CN201510528806 A CN 201510528806A CN 105156371 A CN105156371 A CN 105156371A
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- CN
- China
- Prior art keywords
- hydraulic system
- accumulator
- liquid mouth
- valve
- described liquid
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- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 107
- 239000007789 gas Substances 0.000 claims description 33
- 239000003921 oil Substances 0.000 claims description 14
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract 3
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 6
- 230000010349 pulsation Effects 0.000 description 6
- 230000035939 shock Effects 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention discloses an energy accumulator for a hydraulic system, and belongs to the field of mechanical equipment. The energy accumulator comprises a shell. The shell is provided with a gas opening and a liquid opening. The liquid opening is connected with the hydraulic system. A gas bag is contained in an inner cavity of the shell and communicated with the gas opening. A liquid cavity is formed between the gas bag and the shell. The liquid cavity is communicated with the liquid opening. A lifting valve is arranged in the liquid opening so as to open or close the liquid opening. The energy accumulator for the hydraulic system is large in capacity, reliable in gas-liquid sealing, small in gas bag inertia, flexible in reaction, simple in structure, convenient to use, low in cost and easy to popularize. Due to the fact that the energy accumulator is used as an auxiliary oil source in the hydraulic system in intermittent working or a system with the large motion cycle speed difference, the capacity of a pump can be decreased, the power of the pump can be decreased, the efficiency of the pump can be improved, the temperature rise of the pump can be decreased, pressure maintaining and leakage supplementing can be achieved, and the hydraulic impact can be relieved when the energy accumulator is used as an emergent oil source.
Description
Technical field
The present invention relates to technical field of mechanical equipment, particularly for the accumulator of hydraulic system.
Background technique
Accumulator is the device of pressure store energy, and be a kind of hydraulic element of pressure store liquid, it for storing unnecessary pressure oil, and discharges when needed to system.Such as when Hydraulic Power Transmission System needs, the pressured fluid stored by accumulator is released under its deceleration loading device effect, is transported in Hydraulic Power Transmission System and goes work; And when working solution is too much in Hydraulic Power Transmission System, these unnecessary liquid can overcome again the active force of deceleration loading device, enter accumulator and store.Therefore accumulator is the hydraulic power of Hydraulic Power Transmission System, is again absorption and the storage device of Hydraulic Power Transmission System excess energy.
Summary of the invention
In order to solve at least one aspect of the above-mentioned problems in the prior art and defect, the invention provides a kind of accumulator for hydraulic system.Described technological scheme is as follows:
An object of the present invention is to provide a kind of accumulator for hydraulic system.
According to an aspect of the present invention, provide a kind of accumulator for hydraulic system, described accumulator comprises housing, and described housing is provided with gas port and liquid mouth, and described liquid mouth is connected with described hydraulic system, air bag is accommodated in the inner chamber of described housing, described air bag is communicated with described gas port, and the space between described air bag and described housing is liquid container, and described liquid container is communicated with described liquid mouth, poppet valve is provided with to open and close described liquid mouth in described liquid mouth
In use, when the fluid pressure at described liquid mouth place is greater than the gas pressure in described air bag, described liquid mouth opened by described poppet valve, and described liquid is pressed in described liquid container;
When the described gas pressure in described air bag is greater than fluid pressure described in described liquid container, the described liquid in described liquid container is discharged in described hydraulic system until described poppet valve closes described liquid mouth completely.
Particularly, the gas port of described housing and described liquid mouth are separately positioned on the opposite end of described housing.
Further, described gas port is provided with the gas charging valve be connected with described air bag.
Particularly, described poppet valve is the poppet valve utilizing support spring to reset.
Further, the valve rod that described support spring is set in described poppet valve is located between the mushroom valve block of one end of valve rod and the valve seat of the valve rod the other end, and described valve seat is fixed in described liquid mouth.
Particularly, the external diameter of the mushroom valve block of described poppet valve is greater than the internal diameter of described liquid mouth, and when described poppet valve cuts out described liquid mouth, described mushroom valve block closes described liquid mouth,
When described liquid mouth opened by described poppet valve, described mushroom valve block upwards promotes to leave described liquid mouth.
Further, the gas be filled with in described air bag by described gas charging valve is inert gas.
Particularly, described air bag is that oil resistant rubber is made.
Preferably, described housing is that high pressure resistant material is made.
Further, described liquid is hydraulic oil.
The beneficial effect of technological scheme provided by the invention is:
(1) large, the gas-liquid sealing of the accumulator volume for hydraulic system provided by the invention is reliable, air bag inertia is little, be quick on the draw, structure is simple, easy to use, with low cost and be easy to promote;
(2) accumulator for hydraulic system provided by the invention is in intermittently used hydraulic system or the larger system of action cycle velocity contrast, use accumulator to do to assist oil sources can reduce the capacity of pump, reduce the power of pump, raise the efficiency, reduce temperature rise, save the energy;
(3) accumulator for hydraulic system provided by the invention pressurize can supplement leakage, when the long-time pressurize of oil hydraulic cylinder without the internal leakage that pump off-load accumulator can be made during feeding to supplement cylinder, and the pressure in cylinder can be ensured, as some press machine pressing component stage, often this kind of way can be adopted;
(4) accumulator for hydraulic system provided by the invention can make emergent oil sources, when occasions such as pump damage or power failures suddenly, some system (as hydrostatic bearing oil supply system) may have an accident, accumulator now must be set as emergent oil sources, still there is certain pressure at short notice to maintain system;
(5) accumulator for hydraulic system provided by the invention can also absorption pressure be pulsed, relax hydraulic shock, because the pump in system and relief valve etc. all can produce flow and pressure pulsation, at pulsation nidus, accumulator is set, pulsation can be made to reduce to very little, and easily there is hydraulic shock place, set up accumulator and can be used for absorbing surge pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the accumulator for hydraulic system according to an embodiment of the invention;
Wherein, 100 accumulators, 10 housings, 11 gas port, 12 liquid mouths, 20 air bags, 21 gas charging valves, 30 liquid container, 31 poppet valves, 311 support springs, 312 valve rods, 313 valve blocks, 314 valve seats.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
See Fig. 1, it illustrates the accumulator 100 for hydraulic system according to an embodiment of the invention.Accumulator 100 comprises housing 10, and housing 10 is provided with gas port 11 and liquid mouth 12.Particularly, liquid mouth 12 is connected with hydraulic system (not shown), air bag 20 is accommodated in the inner chamber of housing 10, air bag 20 is communicated with gas port 11, space between air bag 20 and housing 10 is liquid container 30, liquid container 30 is communicated with liquid mouth 12, is provided with poppet valve 31 to open and close liquid mouth 12 in liquid mouth 12.In use, when the fluid pressure at liquid mouth 12 place is greater than the gas pressure in air bag 20, liquid mouth 12 opened by poppet valve 31, and liquid is pressed in liquid container 30; When the gas pressure in air bag 20 is greater than institute's fluid pressure in liquid container 30, the liquid in liquid container 30 is discharged in hydraulic system (not shown) until poppet valve 31 sealing liquid mouth 12 completely.
In an example of the present invention, air bag 20 is made up of oil resistant rubber, and is fixed in the top of high voltage bearing seamless casing 10.In use, with the inert gas (such as nitrogen) being arranged on gas charging valve 21 that gas port 11 place is connected with air bag 20 and being filled with in air bag 20 certain pressure.Liquid mouth 12 place of the bottom of housing 10 is provided with poppet valve 31, and poppet valve 31 is the poppet valves having support spring 311.In use, liquid (such as hydraulic oil) from then on passes into or flows out.Certainly it will be understood by those skilled in the art that air bag 20 can be arranged on the bottom of housing 10, also can be arranged on left side or the right side of housing 10, be communicated with as long as can realize air bag 20 being assembled in housing 10 and with the gas port 11 of housing 10.
As shown in Figure 1, gas port 11 and the liquid mouth 12 of housing 10 are separately positioned on the opposite end of housing 10.Certain those skilled in the art can understand, gas port 11 and liquid mouth 12 can be arranged on the homonymy of housing 10, such as gas port 11 and liquid mouth 12 are arranged on the same side of housing 10 along the direction of the longitudinal direction of housing 10 respectively, also can prevent air bag 20 from being discharged by air bag 20 while liquid container 30 discharges liquid.Certainly this example is only a kind of illustrated examples, and those skilled in the art not should be understood to one restriction of the present invention, as long as when realizing in liquid container 30 discharge opeing the design of gas port 11 and liquid mouth 12, air bag 20 is not extruded liquid mouth 12.
In another example of the present invention, the poppet valve that poppet valve 31 resets for utilizing support spring 311.Support spring 311 is set on the valve rod 312 of 31 of poppet valve, and is located between the mushroom valve block 313 of one end of valve rod 312 and the valve seat 314 of valve rod 312 the other end, and valve seat 314 is fixed in liquid mouth 12.The lower end of support spring 311 can be fixedly connected with valve seat 314, also can only contact with valve seat 314, as long as can realize the power that valve seat 314 can bear support spring 311 transmission.
In an also example of the present invention, the external diameter of the mushroom valve block 313 of poppet valve 31 is greater than the internal diameter of liquid mouth 12.Such design is when when poppet valve 31 closing liquid mouth 12, and mushroom valve block 313 can sealing liquid mouth 12; When liquid mouth 12 opened by poppet valve 31, mushroom valve block 313 upwards promotes to leave liquid mouth 12.By the design of poppet valve 31, solve existing bladder accumulator gas-liquid sealing poor reliability, inertia large, react insensitive, the problem of complex structure, installation and maintenance inconvenience.
Below by the working principle describing the accumulator for hydraulic system of the present invention in detail, further illustrate the concrete structure of the accumulator for hydraulic system of the present invention.
When the liquid (such as hydraulic oil) in hydraulic system need be pressed in the liquid container 30 of accumulator 100, the hydraulic pressure that poppet valve 31 increases gradually based on liquid mouth 12 place and the elastic force that support spring 311 resets upwards promote to open liquid mouth 12, and liquid is flowed in liquid container 30.Along with the liquid in liquid container 30 increases gradually, the gas in air bag 20 will be compressed, thus realizes supercharging and accumulation of energy.When needs accumulator 100 is to hydraulic system conveying liquid, air bag 20 inflation, the pressure in air bag 20 is made to be greater than the pressure at liquid mouth 12 place, and be less than the reseting elasticity of support spring 311, the liquid in liquid container 30 is made to be expelled in hydraulic system by poppet valve 31 gradually, in the process, along with the increasing pressure of air bag 20 is large, while hydraulic oil in liquid container 30 is emptied completely, in air bag 20, the pressure of gas increases to the reseting elasticity being greater than support spring 311 gradually, the support spring 311 made is compressed, thus liquid mouth 12 is closed by the mushroom valve block 313 of poppet valve 31, achieve the energy recharge to hydraulic system, and prevent air bag 20 to be extruded liquid mouth 12 simultaneously.
The beneficial effect of technological scheme provided by the invention is:
(1) large, the gas-liquid sealing of the accumulator volume for hydraulic system provided by the invention is reliable, air bag inertia is little, be quick on the draw, structure is simple, easy to use, with low cost and be easy to promote;
(2) accumulator for hydraulic system provided by the invention is in intermittently used hydraulic system or the larger system of action cycle velocity contrast, use accumulator to do to assist oil sources can reduce the capacity of pump, reduce the power of pump, raise the efficiency, reduce temperature rise, save the energy;
(3) accumulator for hydraulic system provided by the invention pressurize can supplement leakage, when the long-time pressurize of oil hydraulic cylinder without the internal leakage that pump off-load accumulator can be made during feeding to supplement cylinder, and the pressure in cylinder can be ensured, as some press machine pressing component stage, often this kind of way can be adopted;
(4) accumulator for hydraulic system provided by the invention can make emergent oil sources, when occasions such as pump damage or power failures suddenly, some system (as hydrostatic bearing oil supply system) may have an accident, accumulator now must be set as emergent oil sources, still there is certain pressure at short notice to maintain system;
(5) accumulator for hydraulic system provided by the invention can also absorption pressure be pulsed, relax hydraulic shock, because the pump in system and relief valve etc. all can produce flow and pressure pulsation, at pulsation nidus, accumulator is set, pulsation can be made to reduce to very little, and easily there is hydraulic shock place, set up accumulator and can be used for absorbing surge pressure.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1., for an accumulator for hydraulic system, it is characterized in that,
Described accumulator comprises housing, described housing is provided with gas port and liquid mouth, described liquid mouth is connected with described hydraulic system, air bag is accommodated in the inner chamber of described housing, described air bag is communicated with described gas port, and the space between described air bag and described housing is liquid container, and described liquid container is communicated with described liquid mouth, poppet valve is provided with to open and close described liquid mouth in described liquid mouth
In use, when the fluid pressure at described liquid mouth place is greater than the gas pressure in described air bag, described liquid mouth opened by described poppet valve, and described liquid is pressed in described liquid container;
When the described gas pressure in described air bag is greater than fluid pressure described in described liquid container, the described liquid in described liquid container is discharged in described hydraulic system until described poppet valve closes described liquid mouth completely.
2. the accumulator for hydraulic system according to claim 1, is characterized in that,
The gas port of described housing and described liquid mouth are separately positioned on the opposite end of described housing.
3. the accumulator for hydraulic system according to claim 2, is characterized in that,
Described gas port is provided with the gas charging valve be connected with described air bag.
4. the accumulator for hydraulic system according to any one of claim 1-3, is characterized in that,
Described poppet valve is the poppet valve utilizing support spring to reset.
5. the accumulator for hydraulic system according to claim 4, is characterized in that,
The valve rod that described support spring is set in described poppet valve is located between the mushroom valve block of one end of valve rod and the valve seat of the valve rod the other end, and described valve seat is fixed in described liquid mouth.
6. the accumulator for hydraulic system according to claim 5, is characterized in that,
The external diameter of the mushroom valve block of described poppet valve is greater than the internal diameter of described liquid mouth, and when described poppet valve cuts out described liquid mouth, described mushroom valve block closes described liquid mouth,
When described liquid mouth opened by described poppet valve, described mushroom valve block upwards promotes to leave described liquid mouth.
7. the accumulator for hydraulic system according to claim 6, is characterized in that,
The gas be filled with in described air bag by described gas charging valve is inert gas.
8. the accumulator for hydraulic system according to claim 7, is characterized in that,
Described air bag is that oil resistant rubber is made.
9. the accumulator for hydraulic system according to claim 8, is characterized in that,
Described housing is that high pressure resistant material is made.
10. the accumulator for hydraulic system according to claim 9, is characterized in that,
Described liquid is hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528806.2A CN105156371A (en) | 2015-08-24 | 2015-08-24 | Energy accumulator for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528806.2A CN105156371A (en) | 2015-08-24 | 2015-08-24 | Energy accumulator for hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105156371A true CN105156371A (en) | 2015-12-16 |
Family
ID=54797367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510528806.2A Pending CN105156371A (en) | 2015-08-24 | 2015-08-24 | Energy accumulator for hydraulic system |
Country Status (1)
| Country | Link |
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| CN (1) | CN105156371A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151124A (en) * | 2016-07-01 | 2016-11-23 | 湖北航天技术研究院特种车辆技术中心 | A kind of accumulator inflation inlet sealing device and method |
| CN108729493A (en) * | 2018-06-07 | 2018-11-02 | 马鞍山松鹤信息科技有限公司 | A kind of excavator of steady accumulation of energy |
| CN109780276A (en) * | 2019-03-22 | 2019-05-21 | 浙江中煤机械科技有限公司 | A kind of overflow valve |
| CN113048386A (en) * | 2019-12-27 | 2021-06-29 | 未势能源科技有限公司 | High-pressure gas storage cylinder, gas storage method and vehicle |
| WO2023155108A1 (en) * | 2022-02-17 | 2023-08-24 | 烟台杰瑞石油装备技术有限公司 | Auxiliary accumulator and low-pressure liquid inlet manifold having same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5969501A (en) * | 1982-10-15 | 1984-04-19 | Mitsubishi Electric Corp | Oil pressure generating device |
| CN102086891A (en) * | 2011-03-17 | 2011-06-08 | 严啸伟 | Bag type energy accumulator |
| CN202251151U (en) * | 2011-09-22 | 2012-05-30 | 梁秀红 | Energy accumulator for oil pumping unit |
| CN203098419U (en) * | 2013-02-02 | 2013-07-31 | 成都玺汇科技有限公司 | Air-bag-type energy storage device |
| CN203743094U (en) * | 2013-12-25 | 2014-07-30 | 中国船舶重工集团公司第七一九研究所 | Detachable seawater-corrosion-resistant energy accumulator |
| CN104389824A (en) * | 2014-11-20 | 2015-03-04 | 常州市安家热工仪表有限公司 | Leather bag type energy accumulator |
-
2015
- 2015-08-24 CN CN201510528806.2A patent/CN105156371A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5969501A (en) * | 1982-10-15 | 1984-04-19 | Mitsubishi Electric Corp | Oil pressure generating device |
| CN102086891A (en) * | 2011-03-17 | 2011-06-08 | 严啸伟 | Bag type energy accumulator |
| CN202251151U (en) * | 2011-09-22 | 2012-05-30 | 梁秀红 | Energy accumulator for oil pumping unit |
| CN203098419U (en) * | 2013-02-02 | 2013-07-31 | 成都玺汇科技有限公司 | Air-bag-type energy storage device |
| CN203743094U (en) * | 2013-12-25 | 2014-07-30 | 中国船舶重工集团公司第七一九研究所 | Detachable seawater-corrosion-resistant energy accumulator |
| CN104389824A (en) * | 2014-11-20 | 2015-03-04 | 常州市安家热工仪表有限公司 | Leather bag type energy accumulator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151124A (en) * | 2016-07-01 | 2016-11-23 | 湖北航天技术研究院特种车辆技术中心 | A kind of accumulator inflation inlet sealing device and method |
| CN108729493A (en) * | 2018-06-07 | 2018-11-02 | 马鞍山松鹤信息科技有限公司 | A kind of excavator of steady accumulation of energy |
| CN109780276A (en) * | 2019-03-22 | 2019-05-21 | 浙江中煤机械科技有限公司 | A kind of overflow valve |
| CN113048386A (en) * | 2019-12-27 | 2021-06-29 | 未势能源科技有限公司 | High-pressure gas storage cylinder, gas storage method and vehicle |
| WO2023155108A1 (en) * | 2022-02-17 | 2023-08-24 | 烟台杰瑞石油装备技术有限公司 | Auxiliary accumulator and low-pressure liquid inlet manifold having same |
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Application publication date: 20151216 |
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| RJ01 | Rejection of invention patent application after publication |