CN107542121A - A kind of hybrid excavator movable arm potential energy recovery system - Google Patents
A kind of hybrid excavator movable arm potential energy recovery system Download PDFInfo
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- CN107542121A CN107542121A CN201610503218.8A CN201610503218A CN107542121A CN 107542121 A CN107542121 A CN 107542121A CN 201610503218 A CN201610503218 A CN 201610503218A CN 107542121 A CN107542121 A CN 107542121A
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Abstract
The present invention relates to hybrid excavator technical field, more particularly to a kind of hybrid excavator movable arm potential energy recovery system, the system includes engine, transmission device, ac motor, hydraulic pump, fuel tank, overflow valve, three position four-way directional control valve, boom cylinder, two position three way directional control valve, first switch valve, second switch valve, accumulator, hydraulic motor, generator, rectifier, battery and inverter.The movable arm potential energy of hybrid excavator can be reclaimed by the system, continue to use for hybrid excavator after being converted into energy, saved energy, improved the utilization rate of energy.And hybrid excavator can guarantee that in the course of the work by the system, avoid frequent starting and the stopping of generator, so as to protect generator, from extending the service life of generator, ensure that the system long-play.
Description
Technical field
The present invention relates to hybrid excavator technical field, and in particular to a kind of hybrid excavator swing arm
Potential energy recovery system.
Background technology
Excavator is a kind of constructional engineering machinery, is widely used in hydraulic engineering, communications and transportation, electric power work
In the mechanical execution such as journey and mine excavation, for mitigating heavy manual labor, ensure construction quality.Adding
Fast construction speed and aspect of raising labour productivity play a very important role.Because excavator is with more
The features such as kind, multi-functional, high quality and high efficiency, therefore the favor of vast construction operation unit is received,
The manufacturing industry of excavator also increasingly flourishes.Wherein, hybrid excavator is a kind of relatively advanced
Technology, it uses the power mode of oily electricity mixing, still, hybrid excavator in operation process,
In addition to the kinetic energy needed for part energy is converted into work, unnecessary energy consumes all in the form of heat energy
In system, particularly when hybrid excavator swing arm declines, substantial amounts of potential energy is not utilized, and is turned
Change heat energy, caused the huge waste of energy, limit the raising of hybrid excavator operating efficiency.
The content of the invention
It is an object of the invention to provide a kind of high, the stable hybrid excavator of energy recovery efficiency
Movable arm potential energy recovery system.
In order to achieve the above object, the technical solution adopted by the present invention is：A kind of hybrid excavator swing arm
Potential energy recovery system, including engine, transmission device, ac motor, hydraulic pump, fuel tank, overflow valve,
Three position four-way directional control valve, boom cylinder, two position three way directional control valve, first switch valve, second switch valve,
Accumulator, hydraulic motor, generator, rectifier, battery and inverter, the engine, alternating current
Motivation and hydraulic pump are connected with transmission device respectively, and the oil inlet of the hydraulic pump is connected with fuel tank, hydraulic pump
Oil-out be connected all the way with the oil inlet of overflow valve, the connection of the P1 mouths of another way and three position four-way directional control valve,
The oil-out of the overflow valve is connected with fuel tank, the A1 mouths of the three position four-way directional control valve and boom cylinder
Rodless cavity connects, and the B1 mouths of three position four-way directional control valve and the rod chamber of boom cylinder connect, and 3-position 4-way changes
The P2 mouths connection of T1 mouths and two position three way directional control valve to valve, B2 mouths and the fuel tank of two position three way directional control valve connect
Connect, the A2 mouths of two position three way directional control valve are connected by first switch valve with accumulator all the way, and another way passes through
The oil inlet of two switch valves and hydraulic motor is connected, and the oil-out of the hydraulic motor is connected with fuel tank, described
The rotating shaft of hydraulic motor is connected with generator, and the generator is connected with rectifier, the rectifier and electric power storage
Pond is connected, and the battery is connected with inverter, and the inverter is connected with ac motor.
A kind of hybrid excavator movable arm potential energy recovery system as described above, further illustrates and is, described
The both ends of hydraulic pump are equipped with filter.
A kind of hybrid excavator movable arm potential energy recovery system as described above, further illustrates and is, described
Accumulator is bladder accumulator.
The beneficial effects of the invention are as follows：The movable arm potential energy of hybrid excavator can be returned by the system
Receive, continue to use for hybrid excavator after being converted into energy, saved energy, improved making for energy
With rate.And hybrid excavator can guarantee that in the course of the work by the system, avoid the frequency of generator
Numerous startup and stopping, so as to protect generator, the service life of generator is extended, ensure that the system
Long-play.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1st, engine；2nd, transmission device；3rd, ac motor；4th, hydraulic pump；5th, fuel tank；
6th, overflow valve；7th, three position four-way directional control valve；8th, boom cylinder；9th, two position three way directional control valve；10、
First switch valve；11st, second switch valve；12nd, accumulator；13rd, hydraulic motor；14th, generator；15、
Rectifier；16th, battery；17th, inverter；18th, filter.
Embodiment
Embodiment of the present invention is further elaborated below in conjunction with the accompanying drawings.
A kind of hybrid excavator movable arm potential energy recovery system provided by the invention, dug suitable for hybrid power
Pick machine is used, and the hybrid excavator is used in mixed way for both engine and motor to be provided for excavator
Energy source, hybrid excavator are prior art, are not specifically described here.
As shown in figure 1, a kind of hybrid excavator movable arm potential energy recovery system provided by the invention, including hair
Motivation 1, transmission device 2, ac motor 3, hydraulic pump 4, fuel tank 5, overflow valve 6,3-position 4-way commutation
Valve 7, boom cylinder 8, two position three way directional control valve 9, first switch valve 10, second switch valve 11, accumulator
12nd, hydraulic motor 13, generator 14, rectifier 15, battery 16 and inverter 17.The engine 1,
Ac motor 3 and hydraulic pump 4 are connected with transmission device 2 respectively, and the transmission device 2 can be travelling gear,
Can also be driving chain, or driving belt, do not limit here, engine 1 passes through transmission device
2 drive hydraulic pumps 4 rotate, so that hydraulic pump 4 carries out normal operation work, similarly, ac motor 3
By transmission device 2 hydraulic pump 4 can be driven to rotate, so that hydraulic pump 4 carries out normal operation work, that is, sent out
Gasoline or diesel oil can be converted into system capacity by motivation 1, and ac motor 3 can convert electrical energy into system
Energy, hybrid excavator is set to carry out digging operation.
The oil inlet of the hydraulic pump 4 is connected with fuel tank 1, and the oil-out of hydraulic pump 1 enters with overflow valve 6 all the way
Hydraulic fluid port is connected, and another way is connected with the P1 mouths of three position four-way directional control valve 7, oil-out and the oil of the overflow valve 6
Case 5 connects, and overflow valve 6 uses as safety valve, the oil pressure of hydraulic oil in limitation system, the 3-position 4-way
The A1 mouths of reversal valve 7 are connected with the rodless cavity of boom cylinder 8, B1 mouths and the swing arm liquid of three position four-way directional control valve 7
The rod chamber connection of cylinder pressure 8, the T1 mouths of three position four-way directional control valve 7 are connected with the P2 mouths of two position three way directional control valve 9,
The B2 mouths of two position three way directional control valve 9 are connected with fuel tank 5, and the A2 mouths of two position three way directional control valve 9 are opened by first all the way
Close valve 10 to be connected with accumulator 12, accumulator 12 is preferably bladder accumulator, and another way passes through second switch
Valve 11 is connected with the oil inlet of hydraulic motor 13, and the oil-out of the hydraulic motor 13 is connected with fuel tank 5, described
The rotating shaft of hydraulic motor 13 is connected with generator 14, i.e., hydraulic motor 13 drives generator 14 to rotate, so that
Generator 14 is generated electricity, and the generator 14 is connected with rectifier 15, the rectifier 15 and battery 16
Connection, i.e. generator electricity are stored in battery 16 after being handled by rectifier 15, the battery
16 are connected with inverter 17, and the inverter 17 is connected with ac motor 3, i.e., battery 16 passes through inverter
Electric energy is provided after 17 processing to use to ac motor 3.Drive generator 14 to generate electricity by hydraulic motor 13, store
The electricity that battery is sent to generator 14 reclaims, and is being supplied to ac motor 3 to use, is realizing energy
Recycle, saved resource.The movable arm potential energy of hybrid excavator can be reclaimed by the system,
Continue to use for hybrid excavator after being converted into energy, saved energy, improved the utilization rate of energy.
Preferably, being equipped with filter 18 at the both ends of the hydraulic pump 4, can be ensured by filter 18
The cleannes of hydraulic oil in into system, protect the various equipment in system.
The operation principle of the system is：Using hybrid excavator swing arm twice raising and lowering as the system
A work period, i.e., the system a work period successively including swing arm first time rise, swing arm
First time decline, rise and second of decline of swing arm second of swing arm.The half period before the system
Interior, when swing arm rises for the first time, three position four-way directional control valve 7 is located at left position, and two position three way directional control valve 9 is located at
Bottom, in figure, at this moment the rod chamber hydraulic oil of boom cylinder 8 passes through two position three way directional control valve
9 are returned directly in fuel tank 5；When being risen under swing arm first time, three position four-way directional control valve 7 is located at right position, two three
Logical reversal valve 9 positioned at upper, first switch valve 10 electric open is closed positioned at bottom, the dead electricity of second switch valve 11
Positioned at right position, then the hydraulic oil of the rodless cavity of boom cylinder 8 passes through two position three way directional control valve 9 and first switch
It is filled into after valve 10 in accumulator 12.In the system second half of the cycle, when swing arm rises for the second time, three
Position and four-way reversing valve 7 is located at left position, and two position three way directional control valve 9 is positioned at bottom, the rod chamber hydraulic pressure of boom cylinder 8
Oil is returned directly in fuel tank 5 by two position three way directional control valve 9, and now first switch valve 10 obtains current potential in bottom,
Second switch valve 11 obtains current potential and passes through the He of first switch valve 10 in left position, the then hydraulic oil stored in accumulator 12
The oil inlet of hydraulic motor 13 is input to after second switch valve 11, makes hydraulic motor 13 drive generator 14 to rotate
Generate electricity；When swing arm rises under for the second time, three position four-way directional control valve 7 is located at right position, two position three way directional control valve 9
In upper, second switch valve 11 current potential in left position, the dead electricity of first switch valve 10 is positioned at upper, then swing arm liquid
The hydraulic oil of the rodless cavity of cylinder pressure 8 is by three position four-way directional control valve 7, two position three way directional control valve 9, second switch valve
11 rear-guard hydrodynamic pressure motors 13 rotate, and are generated electricity so as to drive generator 14 to rotate.Similarly, the second work week
Phase repeats the process of the first work period.
When swing arm rises for the first time, the direct oil return box 5 of hydraulic oil of the rod chamber of boom cylinder 8, swing arm the
When once declining, the hydraulic oil of the rodless cavity of boom cylinder 8 is all stored in accumulator 12, second of swing arm
During rising, the direct oil return box 5 of hydraulic oil of the rod chamber of boom cylinder 8, while hydraulic oil supplies in accumulator 12
Rotated to hydraulic motor 13, rotate generator 14 and generate electricity, when swing arm declines for the second time, the nothing of boom cylinder 8
The hydraulic oil of rod cavity is directly inputted in hydraulic motor 13, is ensured that hydraulic motor 13 continues rotary work, is avoided
The frequent starting of generator 14 and stopping, so as to protect generator 14, extend the use of generator 14
In the life-span, it ensure that the system long-play.
The present invention is not limited to examples detailed above, in claims of the present invention limited range, ability
The various deformations or amendments that field technique personnel can make without creative work are protected by this patent.
Claims (3)
- A kind of 1. hybrid excavator movable arm potential energy recovery system, it is characterised in that：Including engine (1), pass Dynamic device (2), ac motor (3), hydraulic pump (4), fuel tank (5), overflow valve (6), three four Logical reversal valve (7), boom cylinder (8), two position three way directional control valve (9), first switch valve (10), the Two switch valves (11), accumulator (12), hydraulic motor (13), generator (14), rectifier (15), Battery (16) and inverter (17), the engine (1), ac motor (3) and hydraulic pump (4) It is connected respectively with transmission device (2), the oil inlet of the hydraulic pump (4) is connected with fuel tank (1), hydraulic pressure Oil inlet of the oil-out of pump (1) all the way with overflow valve (6) is connected, another way and three position four-way directional control valve (7) P1 mouths connection, the oil-out of the overflow valve (6) are connected with fuel tank (5), described three four The A1 mouths of logical reversal valve (7) are connected with the rodless cavity of boom cylinder (8), three position four-way directional control valve (7) B1 mouths be connected with the rod chamber of boom cylinder (8), the T1 mouths and two of three position four-way directional control valve (7) The P2 mouths connection of position three-way diverter valve (9), B2 mouths and the fuel tank (5) of two position three way directional control valve (9) connect Connect, the A2 mouths of two position three way directional control valve (9) pass through first switch valve (10) and accumulator (12) all the way Connection, another way are connected by second switch valve (11) with the oil inlet of hydraulic motor (13), the liquid The oil-out of pressure motor (13) is connected with fuel tank (5), the rotating shaft of the hydraulic motor (13) and generator (14) connect, the generator (14) is connected with rectifier (15), and the rectifier (15) is with storing Battery (16) connects, and the battery (16) is connected with inverter (17), the inverter (17) It is connected with ac motor (3).
- A kind of 2. hybrid excavator movable arm potential energy recovery system according to claim 1, it is characterised in that： The both ends of the hydraulic pump (4) are equipped with filter (18).
- A kind of 3. hybrid excavator movable arm potential energy recovery system according to claim 1, it is characterised in that： The accumulator (12) is bladder accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503218.8A CN107542121A (en) | 2016-06-29 | 2016-06-29 | A kind of hybrid excavator movable arm potential energy recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503218.8A CN107542121A (en) | 2016-06-29 | 2016-06-29 | A kind of hybrid excavator movable arm potential energy recovery system |
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| CN107542121A true CN107542121A (en) | 2018-01-05 |
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| CN201610503218.8A Pending CN107542121A (en) | 2016-06-29 | 2016-06-29 | A kind of hybrid excavator movable arm potential energy recovery system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533578A (en) * | 2018-06-14 | 2018-09-14 | 长安大学 | A kind of hydraulic movable arm potential energy recovery system and method |
| CN108755794A (en) * | 2018-06-21 | 2018-11-06 | 太原理工大学 | Hydraulic crawler excavator based on liquid electricity composite drive |
| CN108799258A (en) * | 2018-07-05 | 2018-11-13 | 方碧水 | A kind of swing arm energy-recuperation system |
| CN108915008A (en) * | 2018-07-09 | 2018-11-30 | 马鞍山市润启新材料科技有限公司 | A kind of excavator Hydraulic slewing system |
| CN109113120A (en) * | 2018-09-07 | 2019-01-01 | 华侨大学 | A kind of electric-hydraulic combined swing arm energy recycling system |
| CN110512669A (en) * | 2019-07-24 | 2019-11-29 | 徐州工业职业技术学院 | A kind of excavator swing arm potential energy recovery system based on accumulator |
| CN110512687A (en) * | 2019-08-23 | 2019-11-29 | 嘉善鑫强钢业有限公司 | Application to excavators with dual power systems |
| CN113550370A (en) * | 2021-07-12 | 2021-10-26 | 徐州徐工挖掘机械有限公司 | Hybrid excavator energy-saving device and excavator |
| CN114940467A (en) * | 2022-05-24 | 2022-08-26 | 华侨大学 | Electro-hydraulic compound forklift and driving system, method and device thereof, and storage medium |
-
2016
- 2016-06-29 CN CN201610503218.8A patent/CN107542121A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533578A (en) * | 2018-06-14 | 2018-09-14 | 长安大学 | A kind of hydraulic movable arm potential energy recovery system and method |
| CN108755794A (en) * | 2018-06-21 | 2018-11-06 | 太原理工大学 | Hydraulic crawler excavator based on liquid electricity composite drive |
| CN108755794B (en) * | 2018-06-21 | 2020-11-06 | 太原理工大学 | Hydraulic excavator based on hydraulic-electric composite drive |
| CN108799258A (en) * | 2018-07-05 | 2018-11-13 | 方碧水 | A kind of swing arm energy-recuperation system |
| CN108915008A (en) * | 2018-07-09 | 2018-11-30 | 马鞍山市润启新材料科技有限公司 | A kind of excavator Hydraulic slewing system |
| CN108915008B (en) * | 2018-07-09 | 2021-05-28 | 马鞍山市润启新材料科技有限公司 | An excavator rotary hydraulic system |
| CN109113120A (en) * | 2018-09-07 | 2019-01-01 | 华侨大学 | A kind of electric-hydraulic combined swing arm energy recycling system |
| CN110512669A (en) * | 2019-07-24 | 2019-11-29 | 徐州工业职业技术学院 | A kind of excavator swing arm potential energy recovery system based on accumulator |
| CN110512687A (en) * | 2019-08-23 | 2019-11-29 | 嘉善鑫强钢业有限公司 | Application to excavators with dual power systems |
| CN110512687B (en) * | 2019-08-23 | 2024-04-30 | 嘉善鑫强钢业有限公司 | Excavator with dual power system |
| CN113550370A (en) * | 2021-07-12 | 2021-10-26 | 徐州徐工挖掘机械有限公司 | Hybrid excavator energy-saving device and excavator |
| CN114940467A (en) * | 2022-05-24 | 2022-08-26 | 华侨大学 | Electro-hydraulic compound forklift and driving system, method and device thereof, and storage medium |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180105 |
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| WD01 | Invention patent application deemed withdrawn after publication |