CN102720731A - Energy-saving system of operating device - Google Patents
Energy-saving system of operating device Download PDFInfo
- Publication number
- CN102720731A CN102720731A CN2012101888285A CN201210188828A CN102720731A CN 102720731 A CN102720731 A CN 102720731A CN 2012101888285 A CN2012101888285 A CN 2012101888285A CN 201210188828 A CN201210188828 A CN 201210188828A CN 102720731 A CN102720731 A CN 102720731A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- energy recovery
- oil hydraulic
- recovery oil
- working solution
- 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
Images
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
The invention discloses an energy-saving system of an operating device. The energy-saving system of the operating device comprises at least one operating hydraulic cylinder (1), at least one energy-recovery hydraulic cylinder (2), a first oil circuit (31) and a second oil circuit (32). The first oil circuit (31) is connected with a rodless cylinder of each operating hydraulic cylinder (1). The second oil circuit (32) is connected with a rod cavity of each operating hydraulic cylinder (1). The rodless cavity of each energy-recovery hydraulic cylinder (2) is filled with gas, and the rodless cavity of every energy-recovery hydraulic cylinder (2) is connected with a charging valve (22) and a relief valve (21). The charging valve (22) is connected with an external standby gas source. The energy-saving system for energy recovery for the operating device has the advantages of simple structure and easiness to implement, and operating performance is unaffected in energy recovery and release.
Description
Technical field
The present invention relates to a kind of energy conserving system, particularly relate to a kind of energy conserving system of equipment of Work machine.
Background technique
At present, the energy conserving system of existing equipment as:
Patent publication No. is that CN202056123U is disclosed: a kind of potential energy of shear leg deadweight that utilizes reclaims accumulator.Comprise shear leg, the below of shear leg is provided with the energy recovery oil cylinder, and shear leg is connected with the push rod of energy recovery oil cylinder, and the energy recovery oil cylinder connects the accumulation of energy storage through oil pipe.
Above-mentioned patent couples together shear leg oil cylinder and hydraulic accumulator through hydraulic circuit and realizes that potential energy reclaims, but system architecture is complicated, needs big easy accumulator, difficult arrangement.Especially not enough is that the equipment driving force declines to a great extent can't proper functioning when accumulator air pressure is not enough.Therefore has application limit.
Summary of the invention
Technical problem to be solved by this invention is the energy conserving system that proposes a kind of equipment of simple in structure, stable performance.
In order to solve the problems of the technologies described above; The energy conserving system of equipment provided by the invention; Comprise at least one working solution cylinder pressure and at least one energy recovery oil hydraulic cylinder; Second oil circuit that first oil circuit that is connected with the rodless cavity of described working solution cylinder pressure is connected with the rod chamber with described working solution cylinder pressure; The rodless cavity that the rodless cavity of described energy recovery oil hydraulic cylinder is filled with gas and described energy recovery oil hydraulic cylinder is connected with gas charging valve and unloading valve, and described gas charging valve is connected with outside bailout gas.
The piston rod of described energy recovery oil hydraulic cylinder adopts hollow piston rod.
The rodless cavity of described energy recovery oil hydraulic cylinder is connected with outside gas storage unit.
The rod chamber of described energy recovery oil hydraulic cylinder is connected with the import of first selector valve; An outlet of described first selector valve is connected with described second oil circuit; Another outlet is connected with fuel tank; The rodless cavity of described energy recovery oil hydraulic cylinder is connected with the import of second selector valve, and an outlet of described second selector valve is connected with described first oil circuit, and another outlet of described second selector valve is connected with unloading valve with described gas charging valve.
Another outlet of described second selector valve also is connected with outside gas storage unit.
Described working solution cylinder pressure is two; Described energy recovery oil hydraulic cylinder is one; In the middle of described energy recovery oil hydraulic cylinder is arranged in; Two described working solution cylinder pressures are arranged in the both sides of described energy recovery oil hydraulic cylinder, the hinge coaxial arrangement at the two ends of a described energy recovery oil hydraulic cylinder and two described working solution cylinder pressures.
Adopt the energy conserving system of the equipment of technique scheme, the energy recovery oil hydraulic cylinder adopts hollow piston rod to adopt the solid piston bar to increase the gas storage unit through the outside gas storage unit that links to each other with energy recovery oil hydraulic cylinder rodless cavity to increase gas storage volume or energy recovery oil hydraulic cylinder; Compression energy reclaimed the hydraulic pressure gas in the jar and realizes energy storage when equipment was transferred, and when equipment rises, releasing energy reaches the purpose that reduces working solution cylinder pressure energy consumption.The energy recovery oil hydraulic cylinder is filled with gas or is filled with gas and liquid simultaneously.The energy recovery oil hydraulic cylinder is provided with a gas charging valve that is used for inflating, and gas charging valve is connected with outside bailout gas, and when energy recovery oil hydraulic cylinder air pressure was not enough, outside bailout gas was inflated it.The energy recovery oil hydraulic cylinder is provided with a unloading valve that plays safety effect.The rod chamber of energy recovery oil hydraulic cylinder links to each other through the hydraulic system of first selector valve and equipment; The rodless cavity of energy recovery oil hydraulic cylinder links to each other with the hydraulic system of equipment through second selector valve.When energy recovery oil hydraulic cylinder inflation pressure was not enough, equipment hydraulic oil carried out the work of energy recovery Driven by Hydraulic Cylinder equipment.The energy recovery oil hydraulic cylinder increases the outside gas storage unit that links to each other with the energy recovery oil hydraulic cylinder and increases gas storage space.
In sum; The invention solves the complexity problem of equipment energy conserving system; It is inner that gas storage space is integrated in the energy recovery oil cylinder, adds gas charging valve and unloading valve and solve simultaneously because of causing the problem that the decline of equipment driving force can't proper functioning because of the back that leaks gas in the working procedure.
Description of drawings
Fig. 1 is the hydraulic schematic diagram of the first embodiment of the present invention.
Fig. 2 is for being the hydraulic schematic diagram of the second embodiment of the present invention.
A kind of concrete equipment of Fig. 3 for designing according to second embodiment.
Fig. 4 provides the hydraulic system schematic representation of the third variant embodiment of the present invention.
Fig. 5 provides the hydraulic system schematic representation of the 4th kind of variant embodiment of the present invention.
Embodiment
Below will combine accompanying drawing and specific embodiment that the present invention is explained further details:
Be illustrated in figure 1 as the hydraulic schematic diagram of the first embodiment of the present invention; Comprise two working solution cylinder pressures 1 and an energy recovery oil hydraulic cylinder 2; The piston rod of energy recovery oil hydraulic cylinder 2 adopts hollow piston rod 4; First oil circuit 31 is connected with the rodless cavity of working solution cylinder pressure 1, and second oil circuit 32 is connected with the rod chamber of working solution cylinder pressure 2, and the rodless cavity of energy recovery oil hydraulic cylinder 2 is filled with gas; The rodless cavity of energy recovery oil hydraulic cylinder 2 is connected with unloading valve 21 with gas charging valve 22, and gas charging valve 22 is connected with outside bailout gas.
Energy recovery oil hydraulic cylinder 2 adopts hollow piston rod 4, increases gas storage space as much as possible.Pressurized gas was to store the potential energy of equipment when equipment descended, and gas expanded delivered energy when equipment rose.Energy recovery oil hydraulic cylinder 2 is provided with gas charging valve 22 to replenish the gas that in use loses because of leakage, is provided with unloading valve 21 and eliminates the potential safety hazard of bringing because of gas atmosphere is too high.
Be illustrated in figure 2 as the hydraulic schematic diagram of the second embodiment of the present invention, comprise two working solution cylinder pressures 1 and an energy recovery oil hydraulic cylinder 2, the piston rod of energy recovery oil hydraulic cylinder 2 adopts hollow piston rod 4; First oil circuit 31 is connected with the rodless cavity of working solution cylinder pressure 1; Second oil circuit 32 is connected with the rod chamber of working solution cylinder pressure 2, and the rodless cavity of energy recovery oil hydraulic cylinder 2 is filled with gas, and the rod chamber of energy recovery oil hydraulic cylinder 2 is connected with the import of first selector valve 23; An outlet of first selector valve 23 is connected with second oil circuit 32; Another outlet is connected with fuel tank, and the rodless cavity of energy recovery oil hydraulic cylinder 2 is connected with the import of second selector valve 24, and an outlet of second selector valve 24 is connected with first oil circuit 31; Another outlet of second selector valve 24 is connected with unloading valve 21 with gas charging valve 22, and gas charging valve 22 is connected with outside bailout gas.
Energy recovery oil hydraulic cylinder 2 adopts hollow piston rod 4, increases gas storage space as much as possible.Pressurized gas was to store the potential energy of equipment when equipment descended, and gas expanded delivered energy when equipment rose.Energy recovery oil hydraulic cylinder 2 is provided with gas charging valve 22 to replenish the gas that in use loses because of leakage, is provided with unloading valve 21 and eliminates the potential safety hazard of bringing because of gas atmosphere is too high.Between energy recovery oil hydraulic cylinder 2 and equipment hydraulic system, be provided with first selector valve 23 and second selector valve 24, when energy recovery oil hydraulic cylinder 2 internal air pressures were not enough, the equipment hydraulic system can directly drive 2 work of energy recovery oil hydraulic cylinder.
A kind of concrete equipment of Fig. 3 for designing according to first embodiment; Working solution cylinder pressure 1 is two; Energy recovery oil hydraulic cylinder 2 is one; In the middle of energy recovery oil hydraulic cylinder 2 was arranged in, two working solution cylinder pressures 1 were arranged in the both sides of energy recovery oil hydraulic cylinder 2, the hinge coaxial arrangement at the two ends of an energy recovery oil hydraulic cylinder 2 and two working solution cylinder pressures 1.
Be illustrated in figure 4 as the hydraulic schematic diagram of the third embodiment of the present invention; Comprise two working solution cylinder pressures 1 and an energy recovery oil hydraulic cylinder 2; The piston rod of energy recovery oil hydraulic cylinder 2 adopts hollow piston rod 4, the first oil circuits 31 to be connected with the rodless cavity of working solution cylinder pressure 1, and second oil circuit 32 is connected with the rod chamber of working solution cylinder pressure 2; The rodless cavity of energy recovery oil hydraulic cylinder 2 is filled with gas; The rod chamber of energy recovery oil hydraulic cylinder 2 is connected with the import of first selector valve 23, and an outlet of first selector valve 23 is connected with second oil circuit 32, and another outlet is connected with fuel tank; The rodless cavity of energy recovery oil hydraulic cylinder 2 is connected with the import of second selector valve 24; An outlet of second selector valve 24 is connected with first oil circuit 31, and another outlet of second selector valve 24 is connected with gas charging valve 22, unloading valve 21 and outside gas storage unit 3, and gas charging valve 22 is connected with outside bailout gas.
Energy recovery oil hydraulic cylinder 2 adopts hollow piston rod 4; For further increasing gas storage space; Externally set up the outside gas storage unit 3 that links to each other with the energy recovery oil hydraulic cylinder, pressurized gas is to store the potential energy of equipment when equipment descends, and gas expanded delivered energy when equipment rose.
Be illustrated in figure 5 as the hydraulic schematic diagram of the fourth embodiment of the present invention; Consider from the easy degree of processing; Energy recovery oil hydraulic cylinder 2 adopts the solid piston bar identical with the working solution cylinder pressure, but in order to increase gas storage space, externally sets up the outside gas storage unit 3 that links to each other with the energy recovery oil hydraulic cylinder; Pressurized gas is to store the potential energy of equipment when equipment descends, and gas expanded delivered energy when equipment rose.
The above is merely the preferred embodiments of the present invention, and does not limit the present invention in any way, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the energy conserving system of an equipment; Comprise at least one working solution cylinder pressure (1) and at least one energy recovery oil hydraulic cylinder (2); Second oil circuit (32) that first oil circuit (31) that is connected with the rodless cavity of described working solution cylinder pressure (1) is connected with the rod chamber with described working solution cylinder pressure (1); It is characterized in that: the rodless cavity that the rodless cavity of described energy recovery oil hydraulic cylinder (2) is filled with gas and described energy recovery oil hydraulic cylinder is connected with gas charging valve (22) and unloading valve (21), and described gas charging valve (22) is connected with outside bailout gas.
2. the energy conserving system of equipment according to claim 1 is characterized in that: the piston rod employing hollow piston rod (4) of described energy recovery oil hydraulic cylinder (2).
3. the energy conserving system of equipment according to claim 1 and 2, it is characterized in that: the rodless cavity of described energy recovery oil hydraulic cylinder (2) is connected with outside gas storage unit (3).
4. the energy conserving system of equipment according to claim 1 and 2; It is characterized in that: the rod chamber of described energy recovery oil hydraulic cylinder (2) is connected with the import of first selector valve (23); An outlet of described first selector valve (23) is connected with described second oil circuit (32); Another outlet is connected with fuel tank; The rodless cavity of described energy recovery oil hydraulic cylinder (2) is connected with the import of second selector valve (24), and an outlet of described second selector valve (24) is connected with described first oil circuit (31), and another outlet of described second selector valve (24) is connected with unloading valve (21) with described gas charging valve (22).
5. the energy conserving system of equipment according to claim 4, it is characterized in that: another outlet of described second selector valve (24) also is connected with outside gas storage unit (3).
6. the energy conserving system of equipment according to claim 1 and 2; It is characterized in that: described working solution cylinder pressure (1) is two; Described energy recovery oil hydraulic cylinder (2) is one; In the middle of described energy recovery oil hydraulic cylinder (2) was arranged in, two described working solution cylinder pressures (1) were arranged in the both sides of described energy recovery oil hydraulic cylinder (2), the hinge coaxial arrangement at the two ends of a described energy recovery oil hydraulic cylinder (2) and two described working solution cylinder pressures (1).
7. the energy conserving system of equipment according to claim 3; It is characterized in that: described working solution cylinder pressure (1) is two; Described energy recovery oil hydraulic cylinder (2) is one; In the middle of described energy recovery oil hydraulic cylinder (2) was arranged in, two described working solution cylinder pressures (1) were arranged in the both sides of described energy recovery oil hydraulic cylinder (2), the hinge coaxial arrangement at the two ends of a described energy recovery oil hydraulic cylinder (2) and two described working solution cylinder pressures (1).
8. the energy conserving system of equipment according to claim 4; It is characterized in that: described working solution cylinder pressure (1) is two; Described energy recovery oil hydraulic cylinder (2) is one; In the middle of described energy recovery oil hydraulic cylinder (2) was arranged in, two described working solution cylinder pressures (1) were arranged in the both sides of described energy recovery oil hydraulic cylinder (2), the hinge coaxial arrangement at the two ends of a described energy recovery oil hydraulic cylinder (2) and two described working solution cylinder pressures (1).
9. the energy conserving system of equipment according to claim 5; It is characterized in that: described working solution cylinder pressure (1) is two; Described energy recovery oil hydraulic cylinder (2) is one; In the middle of described energy recovery oil hydraulic cylinder (2) was arranged in, two described working solution cylinder pressures (1) were arranged in the both sides of described energy recovery oil hydraulic cylinder (2), the hinge coaxial arrangement at the two ends of a described energy recovery oil hydraulic cylinder (2) and two described working solution cylinder pressures (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101888285A CN102720731A (en) | 2012-06-08 | 2012-06-08 | Energy-saving system of operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101888285A CN102720731A (en) | 2012-06-08 | 2012-06-08 | Energy-saving system of operating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720731A true CN102720731A (en) | 2012-10-10 |
Family
ID=46946569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101888285A Pending CN102720731A (en) | 2012-06-08 | 2012-06-08 | Energy-saving system of operating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720731A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386515A (en) * | 2018-12-06 | 2019-02-26 | 哈工新欧(岳阳)测控装备有限公司 | Energy-saving large_sized hydraulic cylinder testing stand |
| CN110080646A (en) * | 2019-06-04 | 2019-08-02 | 郑元阳 | Pneumatic window opener |
| CN111520366A (en) * | 2020-05-12 | 2020-08-11 | 中国重型机械研究院股份公司 | Continuous casting machine cold bed lifting hydraulic control system and method comprising auxiliary power hydraulic cylinder |
| CN116221207A (en) * | 2023-03-30 | 2023-06-06 | 华东交通大学 | Discrete four-cavity hydraulic cylinder system controlled by multiple electromagnetic valves |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100018195A1 (en) * | 2008-07-24 | 2010-01-28 | Liebherr-Hydraulikbagger Gmbh | Piece of Working Equipment |
| EP2455551A1 (en) * | 2010-11-17 | 2012-05-23 | Liebherr-Hydraulikbagger GmbH | Work device |
| CN202628687U (en) * | 2012-06-08 | 2012-12-26 | 山河智能装备股份有限公司 | Energy-saving system for working device |
-
2012
- 2012-06-08 CN CN2012101888285A patent/CN102720731A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100018195A1 (en) * | 2008-07-24 | 2010-01-28 | Liebherr-Hydraulikbagger Gmbh | Piece of Working Equipment |
| EP2455551A1 (en) * | 2010-11-17 | 2012-05-23 | Liebherr-Hydraulikbagger GmbH | Work device |
| CN202628687U (en) * | 2012-06-08 | 2012-12-26 | 山河智能装备股份有限公司 | Energy-saving system for working device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386515A (en) * | 2018-12-06 | 2019-02-26 | 哈工新欧(岳阳)测控装备有限公司 | Energy-saving large_sized hydraulic cylinder testing stand |
| CN109386515B (en) * | 2018-12-06 | 2024-03-19 | 哈工新欧(岳阳)测控装备有限公司 | Energy-saving large-sized hydraulic cylinder test bed |
| CN110080646A (en) * | 2019-06-04 | 2019-08-02 | 郑元阳 | Pneumatic window opener |
| CN110080646B (en) * | 2019-06-04 | 2020-08-11 | 郑元阳 | Pneumatic window opener |
| CN111520366A (en) * | 2020-05-12 | 2020-08-11 | 中国重型机械研究院股份公司 | Continuous casting machine cold bed lifting hydraulic control system and method comprising auxiliary power hydraulic cylinder |
| CN116221207A (en) * | 2023-03-30 | 2023-06-06 | 华东交通大学 | Discrete four-cavity hydraulic cylinder system controlled by multiple electromagnetic valves |
| CN116221207B (en) * | 2023-03-30 | 2024-02-06 | 华东交通大学 | Discrete four-chamber hydraulic cylinder system controlled by multiple solenoid valves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201166022Y (en) | Hydraulic pressure accumulator oil cylinder for crane | |
| UA95592C2 (en) | Hydro-pneumatic accumulator with flexible porous filler | |
| CN204548515U (en) | A kind of aircraft zero minusg fuel feeding pressure charging system | |
| CN102720731A (en) | Energy-saving system of operating device | |
| CN107089629B (en) | A kind of hybrid energy-storing hoisting system for engineering machinery | |
| CN103133435B (en) | A kind of hydraulic accumulator | |
| CN103953370A (en) | A nitrogen safety valve for coal mine fully mechanized mining hydraulic support | |
| CN202628687U (en) | Energy-saving system for working device | |
| CN202056123U (en) | Potential-energy recuperating accumulator utilizing the dead weight of a crane arm | |
| CN202017666U (en) | Gas supercharging device | |
| CN110030213A (en) | A kind of active hydraulic energy storage device | |
| CN110332156B (en) | Diaphragm type energy accumulator | |
| CN104929856A (en) | Wave energy conversion system with energy storage link capable of operating automatically | |
| CN102691682A (en) | Method and device for potential energy recovery and storage by utilizing deadweight of crane jib | |
| CN203297192U (en) | Pressure maintaining oil cylinder system of holder of horizontal directional drilling machine | |
| CN205315403U (en) | Efficient hydraulic power unit | |
| CN203924196U (en) | Hydraulic crawler excavator three oil cylinder swing arm equipments | |
| CN201880838U (en) | Rapid return device of rapid forging oil press | |
| CN202003929U (en) | Compact type hydraulic control mechanism | |
| CN103979094A (en) | Host pneumatic hydraulic jacking push supporting device | |
| US10690151B2 (en) | Device for recovering hydraulic energy by connecting two differential cylinders | |
| CN202745387U (en) | Landing leg control system and concrete pumping equipment | |
| CN106996399A (en) | A kind of three hydraulic fluid port hydraulic means recycled for gravitional force | |
| CN103993625A (en) | Three-oil cylinder movable arm working device of hydraulic excavator | |
| CN215214172U (en) | Carbon dioxide liquid-gas phase conversion actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |