CN104948541A - Hydraulic overflow energy recycling system - Google Patents
Hydraulic overflow energy recycling system Download PDFInfo
- Publication number
- CN104948541A CN104948541A CN201510302343.8A CN201510302343A CN104948541A CN 104948541 A CN104948541 A CN 104948541A CN 201510302343 A CN201510302343 A CN 201510302343A CN 104948541 A CN104948541 A CN 104948541A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- valve
- way valve
- pressure
- oil
- 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.)
- Pending
Links
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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic overflow energy recycling system. The hydraulic overflow energy recycling system comprises a hydraulic oil tank, a hydraulic pump, a hydraulic reversing valve and a hydraulic oil cylinder which are connected in sequence, and further comprises a first-level overflow valve, a second-level overflow valve and a first one-way valve, wherein the first-level overflow valve and the second-level overflow valve are connected to the part between the oil returning port of the hydraulic reversing valve and the hydraulic oil tank, the oil inlet of the first one-way valve is connected to the part between the first-level overflow valve and the second-level overflow valve, the oil outlet of the first one-way valve is connected with an energy accumulator and the oil inlet of a second one-way valve, and the oil outlet of the second one-way valve is connected with a pipeline between the hydraulic pump and the hydraulic reversing valve. Overflowing hydraulic oil enters the energy accumulator through the first-level overflow valve and the first one-way valve, when the energy accumulator reaches the rated pressure, the second-level overflow valve is opened, the hydraulic oil returns to the hydraulic tank, and when the pressure in the system is lower than the pressure of the energy accumulator, the second one-way valve is opened, and pressure supplementing is carried out. The hydraulic overflow energy recycling system is simple and practical in structure, high in working efficiency and stable in working pressure, and the structure can be applied to the type of hydraulic systems so that the overflow energy can be recycled.
Description
Technical field
The present invention relates to a kind of hydraulic overflow energy recovery utilizing system, belong to technical field of hydraulic pressure.
Background technique
Hydraulics is one of key technology realizing modernization transmission and control, and countries in the world all give very large attention to the development of hydraulics.According to statistics, each major country of world hydraulic industry sales volume accounts for 2% ~ 3.5% of the mechanical industry output value, and China only accounts for about 1%, and this absolutely proves that China's hydraulics utilization rate is lower, makes great efforts to expand its application, will have vast potential for future development.Nowadays, the development degree of hydraulics is adopted to become one of important symbol of a measurement National Industrial level.As developed country produce 95% engineering machinery, the numerical control machining center of 90%, the automatic production line of more than 95% all have employed hydraulic transmission technology.By contrast, the hydraulics of China is weak, obviously at a disadvantage when racing on the same stage with world-famous brand.And the industrial structure is unreasonable for many years, the capability of independent innovation is weak, fundamental technology and basic material level is delayed, main join the deep-seated problems such as industry development is inharmonious and reveal further, urgently to be resolved hurrily.
Mechanical energy being converted in pressure energy and Umklapp process, always there is energy loss in hydraulics.In order to reduce the loss of energy, Railway Project below must be solved: the loss reducing the internal pressure of element and system, to reduce power loss; Reduce or eliminate the restriction loss of system, reduce the spillway discharge of non-security needs as far as possible; Adopt static pressure technology and sealing material, reduce frictional loss; Improve hydraulic system performance, adopt Load sensing system, secondary regulation system and employing accumulator loop.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of simple and practical, working efficiency is high, working pressure is stable hydraulic overflow energy recovery utilizing system.
For achieving the above object, the technical solution adopted in the present invention is: a kind of hydraulic overflow energy recovery utilizing system, comprise the hydraulic oil container, oil hydraulic pump, hydraulicdirectional control valve, the hydraulic jack that connect successively, be connected to the one-level relief valve between hydraulicdirectional control valve return opening and hydraulic oil container and secondary relief valve, filler opening is connected to the one-way valve I between one-level relief valve and secondary relief valve, the oil outlet of one-way valve I is connected with the filler opening of accumulator and one-way valve II, the pipeline between the oil outlet connecting fluid press pump of one-way valve II and hydraulicdirectional control valve; Overflowing liquid force feed enters accumulator through one-level relief valve and one-way valve I, and when accumulator reaches rated pressure, secondary relief valve is opened, hydraulic oil is got back in hydraulic oil container, when the pressure of the pressure in system lower than accumulator, one-way valve II opens, and carries out pressure supply.
Advantageous Effects of the present invention is: by the recycling of accumulator, two-stage relief valve and one-way valve control realization overflow energy, simple and practical, working efficiency is high, and working pressure is stablized, and this structure may be used on the recycling realizing overflow energy in this type of hydraulic system.
accompanying drawing illustrates:
Below in conjunction with drawings and Examples, further discussion is done to the present invention.
Fig. 1 is theory diagram of the present invention.
In figure: 1, hydraulic oil container, 2, oil hydraulic pump, 3, hydraulicdirectional control valve, 4, hydraulic jack, 5, one-way valve II, 6, accumulator, 7, one-level relief valve, 8, one-way valve I, 9, secondary relief valve.
Embodiment
A kind of hydraulic overflow energy recovery utilizing system as shown in Figure 1, comprise the hydraulic oil container 1, oil hydraulic pump 2, hydraulicdirectional control valve 3, the hydraulic jack 4 that connect successively, be connected to the one-level relief valve 7 between hydraulicdirectional control valve 3 return opening and hydraulic oil container 1 and secondary relief valve 9, filler opening is connected to the one-way valve I8 between one-level relief valve 7 and secondary relief valve 9, the oil outlet of one-way valve I8 is connected with the filler opening of accumulator 6 and one-way valve II5, the pipeline between the oil outlet connecting fluid press pump 2 of one-way valve II5 and hydraulicdirectional control valve 3; Overflowing liquid force feed enters accumulator 6 through one-level relief valve 7 and one-way valve I8, and when accumulator 6 reaches rated pressure, secondary relief valve 9 is opened, hydraulic oil is got back in hydraulic oil container 1, when the pressure of the pressure in system lower than accumulator 6, one-way valve II5 opens, and carries out pressure supply.
The present invention is by the recycling of accumulator, two-stage relief valve and one-way valve control realization overflow energy, and simple and practical, working efficiency is high, and working pressure is stablized, and this structure may be used on the recycling realizing overflow energy in this type of hydraulic system.
A kind of embodiment that just the present invention given in Fig. 1 is contained; although give detailed description and explanation to the specific embodiment of the present invention above; but what should indicate is; we can carry out various equivalence according to conception of the present invention to above-mentioned mode of execution and change and amendment; its function produced do not exceed that specification contains yet spiritual time, all should within protection scope of the present invention.
Claims (1)
1. a hydraulic overflow energy recovery utilizing system, comprise the hydraulic oil container (1) connected successively, oil hydraulic pump (2), hydraulicdirectional control valve (3), hydraulic jack (4), it is characterized in that: also comprise and be connected to one-level relief valve (7) between hydraulicdirectional control valve (3) return opening and hydraulic oil container (1) and secondary relief valve (9), filler opening is connected to the one-way valve I(8 between one-level relief valve (7) and secondary relief valve (9)), one-way valve I(8) oil outlet and accumulator (6) and one-way valve II(5) filler opening be connected, one-way valve II(5) oil outlet connecting fluid press pump (2) and hydraulicdirectional control valve (3) between pipeline, overflowing liquid force feed is through one-level relief valve (7) and one-way valve I(8) enter accumulator (6), when accumulator (6) reaches rated pressure, secondary relief valve (9) is opened, hydraulic oil is got back in hydraulic oil container (1), when the pressure of the pressure in system lower than accumulator (6), one-way valve II(5) open, carry out pressure supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302343.8A CN104948541A (en) | 2015-06-04 | 2015-06-04 | Hydraulic overflow energy recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302343.8A CN104948541A (en) | 2015-06-04 | 2015-06-04 | Hydraulic overflow energy recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948541A true CN104948541A (en) | 2015-09-30 |
Family
ID=54163481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510302343.8A Pending CN104948541A (en) | 2015-06-04 | 2015-06-04 | Hydraulic overflow energy recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948541A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298958A (en) * | 2015-12-01 | 2016-02-03 | 华北水利水电大学 | Loader working hydraulic system capable of recycling overflow energy |
| CN105805058A (en) * | 2016-05-12 | 2016-07-27 | 华若延 | Energy recovery system and energy recovery method for building machine |
| CN106930987A (en) * | 2015-12-30 | 2017-07-07 | 恩格尔机械(上海)有限公司 | Hydraulic system |
| WO2021093301A1 (en) * | 2019-11-14 | 2021-05-20 | 山河智能装备股份有限公司 | Energy recycling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201288722Y (en) * | 2008-10-31 | 2009-08-12 | 浙江大学 | Energy recovery system of mixed power mechanical actuator |
| CN201836129U (en) * | 2010-07-09 | 2011-05-18 | 上海朝田实业有限公司 | Quick pressure lifting device for accumulator on hydraulic pump station |
| CN102758813A (en) * | 2012-08-01 | 2012-10-31 | 三一重工股份有限公司 | Energy-recovery hydraulic system and engineering machinery |
| CN103174688A (en) * | 2013-03-27 | 2013-06-26 | 南京工业大学 | Hydraulic energy-saving system |
| CN203297170U (en) * | 2013-05-27 | 2013-11-20 | 长沙一美环保科技有限公司 | Energy-saving and consumption-reducing compression-type garbage station |
| CN104405004A (en) * | 2014-11-07 | 2015-03-11 | 徐州徐工挖掘机械有限公司 | Rotating overflow energy recycling system of hydraulic excavator |
-
2015
- 2015-06-04 CN CN201510302343.8A patent/CN104948541A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201288722Y (en) * | 2008-10-31 | 2009-08-12 | 浙江大学 | Energy recovery system of mixed power mechanical actuator |
| CN201836129U (en) * | 2010-07-09 | 2011-05-18 | 上海朝田实业有限公司 | Quick pressure lifting device for accumulator on hydraulic pump station |
| CN102758813A (en) * | 2012-08-01 | 2012-10-31 | 三一重工股份有限公司 | Energy-recovery hydraulic system and engineering machinery |
| CN103174688A (en) * | 2013-03-27 | 2013-06-26 | 南京工业大学 | Hydraulic energy-saving system |
| CN203297170U (en) * | 2013-05-27 | 2013-11-20 | 长沙一美环保科技有限公司 | Energy-saving and consumption-reducing compression-type garbage station |
| CN104405004A (en) * | 2014-11-07 | 2015-03-11 | 徐州徐工挖掘机械有限公司 | Rotating overflow energy recycling system of hydraulic excavator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298958A (en) * | 2015-12-01 | 2016-02-03 | 华北水利水电大学 | Loader working hydraulic system capable of recycling overflow energy |
| CN105298958B (en) * | 2015-12-01 | 2017-05-24 | 华北水利水电大学 | Loader working hydraulic system capable of recycling overflow energy |
| CN106930987A (en) * | 2015-12-30 | 2017-07-07 | 恩格尔机械(上海)有限公司 | Hydraulic system |
| CN106930987B (en) * | 2015-12-30 | 2019-11-12 | 恩格尔机械(上海)有限公司 | Hydraulic system and molding machine for the element loading force to molding machine |
| CN105805058A (en) * | 2016-05-12 | 2016-07-27 | 华若延 | Energy recovery system and energy recovery method for building machine |
| CN107120319A (en) * | 2016-05-12 | 2017-09-01 | 华若延 | A kind of building machinery energy reclaiming method based on cantilever position |
| WO2021093301A1 (en) * | 2019-11-14 | 2021-05-20 | 山河智能装备股份有限公司 | Energy recycling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104948541A (en) | Hydraulic overflow energy recycling system | |
| CN205136180U (en) | Hydraulic system of big indisputable fill compression dustbin compression material loading simultaneous working | |
| CN206035914U (en) | Four jar synchronous hydraulic system of automobile elevator | |
| CN104929992B (en) | Energy-saving design method for variable-load servo control system | |
| CN103008362B (en) | Hydraulic press-down parallel servo control method and loop for plate and strip rolling mill | |
| CN204664017U (en) | Synchronous compression pressurize continued compensation and relief circuit | |
| CN200977735Y (en) | Hydraulic control system for energy-saving drawing hydraulic press | |
| CN204003685U (en) | A kind of braking in a turn hydraulic system and engineering machinery | |
| CN205744647U (en) | A kind of hydraulic control system of single-action hydraulic cylinder | |
| CN206035929U (en) | Large -scale plate shearing machine hydraulic control system | |
| CN106837921A (en) | Pressurizing cylinder | |
| CN204055955U (en) | A kind of special-use vehicle steering swivel system | |
| CN206487698U (en) | A kind of constant displacement pump energy-saving hydraulic system | |
| CN203978977U (en) | A kind of hydraulic system and hydraulic shear | |
| CN204419745U (en) | Pressure filter hydraulic system | |
| CN103899594A (en) | Manual emergency operation device and method for internal-expansion locking cylinder | |
| CN204253906U (en) | A kind of Novel hydraulic valve | |
| CN204773760U (en) | Novel servo double acting hydraulic drawing press control system of numerical control | |
| CN204572608U (en) | A kind of numerical control right angle cut-off machine series connection synchronization hydraulic system | |
| CN209621748U (en) | A kind of overload oil compensating valve | |
| CN201407223Y (en) | Improved priority unloading valve | |
| CN206035949U (en) | Three jar synchronous hydraulic system of plate shearing machine | |
| CN205806048U (en) | A kind of baling press hydraulic oil pipe system | |
| CN107524846A (en) | Novel load sensing multi-way valve | |
| CN204783890U (en) | Full -rotating drill's hydraulic pump control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |