CN104074812B - A kind of hydraulic booster energy-recuperation system and control device - Google Patents
A kind of hydraulic booster energy-recuperation system and control device Download PDFInfo
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- CN104074812B CN104074812B CN201410332680.7A CN201410332680A CN104074812B CN 104074812 B CN104074812 B CN 104074812B CN 201410332680 A CN201410332680 A CN 201410332680A CN 104074812 B CN104074812 B CN 104074812B
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Abstract
A kind of hydraulic booster energy-recuperation system and control device, wherein hydraulic booster energy-recuperation system sets two groups altogether, first group is made up of the first electromagnetic valve, the first hydraulic intensifier, the first check valve, the second check valve, the 3rd check valve, the 4th check valve, and second group is made up of the second electromagnetic valve, the second hydraulic intensifier, the 5th check valve, the 6th check valve, the 7th check valve, the 8th check valve；The control device of hydraulic booster energy-recuperation system includes electronic control unit and flow transducer；Remaining fluid pressure device includes accumulator and fuel tank.Low pressure fluid, through the first pressure amplifier and the second pressure amplifier, is transformed into high-voltage oil liquid and is stored in accumulator, completes pressurization energy and reclaims.Electronic control unit is according to the signal of flow transducer, and the operating position regulating the first electromagnetic valve and the second electromagnetic valve is contrary, controls the first pressure amplifier and the second pressure amplifier direction of motion is contrary, it is to avoid produce fluid power impact.
Description
Technical field
The present invention relates to a kind of hydraulic booster energy-recuperation system and control device, especially relating to the low pressure oil supercharging in hydraulic system, and the fluid after supercharging is carried out the device of collection of energy.
Background technology
In hydraulic system, after executive component such as hydraulic cylinder, hydraulic motor action, it generally discharges low pressure fluid, especially in the engineering machinery such as excavation machinery, loading machine and crane gear having bigger potential energy, some executive component of these equipment such as digging arm, crane arm, generally when declining, there is bigger potential energy, this potential energy can promote the executive component of hydraulic system to discharge substantial amounts of low pressure fluid, if this low pressure fluid can not make full use of and directly flow back to fuel tank, then the energy of these low pressure fluid will waste.
Additionally, when system nominal pressure is low, needs individually the element of high pressure to generally require additional single high pressure fuel supply pump, and additional high-pressure pump not only increase the volume of system, also improves cost.
Traditional hydraulic intensifier general only one of which supercharging stroke, i.e. only can realize supercharging when piston is toward a direction motion, can not realize supercharging during backward stroke of the piston, and in the identical time, supercharging number of times is insufficient.
Summary of the invention
For the problems referred to above of the prior art, the invention provides a kind of hydraulic booster energy-recuperation system and control device, this device can overcome the problems referred to above, substantial amounts of low pressure fluid is converted into high-voltage oil liquid be stored in accumulator, and when system needs high-voltage oil liquid by high-voltage oil liquid feed system.
nullA kind of hydraulic booster energy-recuperation system of offer is provided and controls device，Including accumulator、First electromagnetic valve、First hydraulic intensifier、First check valve、Second check valve、3rd check valve、4th check valve、Flow transducer、Second electromagnetic valve、Second hydraulic intensifier、5th electromagnetic valve、6th electromagnetic valve、7th electromagnetic valve、8th electromagnetic valve、Electronic control unit、Fuel tank、Low pressure chamber on the right side of first hydraulic intensifier、High pressure chest on the right side of first hydraulic intensifier、High pressure chest on the left of first hydraulic intensifier、Low pressure chamber on the left of first hydraulic intensifier、Left hand piston head、Piston rod、Divide cavity layer、Right hand piston head、Spring、Low pressure chamber on the right side of second hydraulic intensifier、High pressure chest on the right side of second hydraulic intensifier、High pressure chest on the left of second hydraulic intensifier、Low pressure chamber on the left of second hydraulic intensifier，It is characterized in that:
nullHydraulic booster energy-recuperation system sets two groups altogether，First group of hydraulic booster energy-recuperation system is by the first electromagnetic valve、First hydraulic intensifier、First check valve、Second check valve、3rd check valve、4th check valve composition，Second group of hydraulic booster energy-recuperation system is by the second electromagnetic valve、Second hydraulic intensifier、5th check valve、6th check valve、7th check valve、8th check valve composition,The structure of the first electromagnetic valve and the second electromagnetic valve is identical，It is two position four-way solenoid valves，And connected mode in oil circuit is identical，First electromagnetic valve oil-in connects low pressure pipe，Oil-out is connected with fuel tank，Low pressure chamber on the right side of low pressure chamber and the first hydraulic intensifier it is connected on the left of the first hydraulic intensifier respectively with the two of executive component interfaces，First electromagnetic valve is when left lateral position，The fluid of low pressure pipe flows into low pressure chamber on the left of the first hydraulic intensifier，On the right side of first hydraulic intensifier, low pressure chamber fluid flows back to fuel tank，First electromagnetic valve is when right lateral position，The fluid of low pressure pipe flows into low pressure chamber on the right side of the first hydraulic intensifier，On the left of first hydraulic intensifier, low pressure chamber fluid flows back to fuel tank；Second electromagnetic valve oil-in connects low pressure pipe, oil-out is connected with fuel tank, low pressure chamber on the right side of low pressure chamber and the second hydraulic intensifier it is connected on the left of the second hydraulic intensifier respectively with the two of executive component interfaces, second electromagnetic valve is when left lateral position, the fluid of low pressure pipe flows into low pressure chamber on the left of the second hydraulic intensifier, on the right side of second hydraulic intensifier, low pressure chamber fluid flows back to fuel tank, second electromagnetic valve is when right lateral position, the fluid of low pressure pipe flows into low pressure chamber on the right side of the second hydraulic intensifier, and on the left of the second hydraulic intensifier, low pressure chamber fluid flows back to fuel tank.
First hydraulic intensifier and the second hydraulic intensifier structure are identical, structure is described as a example by the first hydraulic intensifier, first hydraulic intensifier profile is cylindric, by a point cavity layer, low pressure chamber on the right side of first hydraulic intensifier, high pressure chest on the right side of first hydraulic intensifier, high pressure chest on the left of first hydraulic intensifier, low pressure chamber on the left of first hydraulic intensifier, piston (includes left hand piston head, piston rod, right hand piston head) composition, point cavity layer is positioned at the centre position of the first hydraulic intensifier inner chamber, for circular ring, integral with the first hydraulic intensifier, axis and the dead in line of the first hydraulic intensifier, piston rod passes from circular hole, the circumference of circular hole encloses one layer of rubber layer, seal, prevent fluid from flowing between high pressure chest on the right side of high pressure chest and the first hydraulic intensifier on the left of the first hydraulic intensifier；Piston is made up of left hand piston head, piston rod, right hand piston head, and point-blank, and piston rod is hollow to the axis of left hand piston head, the axis of right hand piston head and piston rod, and its Main Function is to reduce the inertia in pistons work stroke；The radius of the cross section of left hand piston head and right hand piston head be piston rod cross section exradius/2 times, the i.e. cross-sectional area of piston head be 3/4 times of the enclosed sectional area of piston rod cylindrical；The structure of left hand piston head is identical with the structure of right hand piston head, as a example by left hand piston head, at left hand piston head away from the end face of piston rod, on have six springs to be distributed on circumference that radius is 3/4 left hand piston head radius, inertia when its Main Function is to reduce piston stroke arrival two ends, left and right and impact, and according to the elastic potential energy of spring and the transfer principle of kinetic energy, give a determined power when backward stroke of the piston；The inner left wall of left hand piston head and the first hydraulic intensifier forms low pressure chamber on the left of the first hydraulic intensifier, left hand piston head and a point cavity layer form high pressure chest on the left of the first hydraulic intensifier, right hand piston head and a point cavity layer form high pressure chest on the right side of the first hydraulic intensifier, the right side inwall of right hand piston head and the first hydraulic intensifier forms low pressure chamber on the right side of the first hydraulic intensifier, on the left of first hydraulic intensifier on the left of low pressure chamber and the first hydraulic intensifier the volume sum of high pressure chest equal to the volume sum of high pressure chest on the right side of low pressure chamber on the right side of the first hydraulic intensifier and the first hydraulic intensifier.
The entrance of the first check valve is connected with low pressure pipe, the outlet of the first check valve is connected with gateway and the flow transducer of high pressure chest on the left of the first hydraulic intensifier, this check valve circulating direction is that low pressure oil liquid stream enters high pressure chest on the left of the first hydraulic intensifier, input high pressure chest on the left of the first supercharger for low pressure fluid, and when preventing hydraulic oil from exiting into accumulator on the left of the first hydraulic intensifier high pressure chest, fluid flows backwards.
The entrance of the second check valve is connected with low pressure pipe, the outlet of the second check valve is connected with the entrance of the 4th check valve with the gateway of high pressure chest on the right side of the first hydraulic intensifier, this check valve inputs high pressure chest on the right side of the first supercharger for low pressure fluid, and when preventing hydraulic oil from exiting into accumulator on the right side of the first hydraulic intensifier high pressure chest, fluid flows backwards.
The entrance of the 3rd check valve is connected with flow transducer, the outlet of the 3rd check valve is connected with the outlet of accumulator and the 4th check valve, this check valve inputs accumulator for high-voltage oil liquid high pressure chest on the left of the first hydraulic intensifier through flow transducer, and prevents high-voltage oil liquid from flowing backwards.
On the right side of the entrance of the 4th check valve and the first hydraulic intensifier, the gateway of high pressure chest and the outlet of the second check valve are connected, the outlet of the 4th check valve is connected with the outlet of accumulator and the 3rd check valve, this check valve is for high-voltage oil liquid high pressure chest input accumulator on the right side of the first hydraulic intensifier, and prevents high-voltage oil liquid from flowing backwards.
The entrance of the 5th check valve is connected with low pressure pipe, the outlet of the 5th check valve is connected with the gateway of high pressure chest on the left of the second hydraulic intensifier and the entrance of the 7th check valve, this check valve circulating direction is that low pressure oil liquid stream enters high pressure chest on the left of the second hydraulic intensifier, input high pressure chest on the left of the second supercharger for low pressure fluid, and when preventing hydraulic oil from exiting into accumulator on the left of the second hydraulic intensifier high pressure chest, fluid flows backwards.
The entrance of the 6th check valve is connected with low pressure pipe, the outlet of the 6th check valve is connected with the entrance of the 8th check valve with the gateway of high pressure chest on the right side of the second hydraulic intensifier, this check valve inputs high pressure chest on the right side of the second supercharger for low pressure fluid, and preventing hydraulic oil from high pressure chest exiting on the right side of the second hydraulic intensifier accumulator, fluid flows backwards.
On the left of the entrance of the 7th check valve and the second hydraulic intensifier, the outlet of high pressure chest and the 5th check valve is connected, the outlet of the 7th check valve is connected with the outlet of accumulator and the 8th check valve, this check valve is for high-voltage oil liquid high pressure chest input accumulator on the left of the second hydraulic intensifier, and prevents high-voltage oil liquid from flowing backwards.
On the right side of the entrance of the 8th check valve and the second hydraulic intensifier, the gateway of high pressure chest and the outlet of the 6th check valve are connected, the outlet of the 8th check valve is connected with the outlet of accumulator and the 7th check valve, this check valve is for high-voltage oil liquid high pressure chest input accumulator on the right side of the second hydraulic intensifier, and prevents high-voltage oil liquid from flowing backwards.
The outlet of accumulator and the outlet of the 3rd check valve, the outlet of the 4th check valve, the outlet of the 7th check valve and the 8th check valve is connected, and is used for collecting the first hydraulic intensifier and the high-voltage oil liquid of the second hydraulic intensifier generation, stores energy, it is achieved energy regenerating.
The control device of hydraulic booster energy-recuperation system includes electronic control unit and flow transducer, electronic control unit controls the first electromagnetic valve and the operating position of the second electromagnetic valve, when electronic control unit receive the flow signal that flow transducer transmits be not zero time, electronic control unit controls the first electromagnetic valve at left lateral position, controls the second electromagnetic valve at right lateral position；When electronic control unit receive the flow signal that sensor transmits be zero time, electronic control unit controls the first electromagnetic valve at right lateral position, control the second electromagnetic valve at left lateral position, so can ensure that the piston of the first hydraulic intensifier and the second hydraulic intensifier moves toward rightabout, prevent the piston identical time, equidirectional motion causes excessive inertia, avoids producing fluid power impact simultaneously；On the flow transducer branch road that high pressure chest is connected with accumulator on the left of the first hydraulic intensifier, connect with the 3rd check valve, on the left of the first hydraulic intensifier between high pressure chest and the 3rd check valve, detect high pressure chest on the left of the first hydraulic intensifier and flow to the flow of accumulator fluid.
The advantage that the present invention compares prior art:
1. in the engineering machinery such as excavation machinery, loading machine and crane gear having bigger potential energy, some executive component of these equipment such as digging arm, crane arm, generally when declining, there is bigger potential energy, this potential energy can promote that the executive component of hydraulic system discharges substantial amounts of low pressure fluid, the present invention can make full use of the potential energy in above-mentioned machinery and equipment, reclaimed, stored and be used, environment friendliness；
2. its construction convenient, simple, it is possible to reduce as by electro-motor and turbo charged equipment cross large inertia and fluid power impacts；
3. accumulator can provide hydraulic oil as high-voltage power supply to hydraulic system, so can avoid additional single high-pressure pump, both decrease the volume of system, and reduced again cost.
Accompanying drawing explanation
Fig. 1 is the hydraulic booster energy-recuperation system of the present invention and controls schematic diagram of device.
Detailed description of the invention
nullIn figure，1、Accumulator，2、First electromagnetic valve，3、First hydraulic intensifier，4、First check valve，5、Second check valve，6、3rd check valve，7、4th check valve，8、Flow transducer，9、Second electromagnetic valve，10、Second hydraulic intensifier，11、5th electromagnetic valve，12、6th electromagnetic valve，13、7th electromagnetic valve，14、8th electromagnetic valve，15、Electronic control unit，16、Fuel tank，17、Low pressure chamber on the right side of first hydraulic intensifier，18、High pressure chest on the right side of first hydraulic intensifier，19、High pressure chest on the left of first hydraulic intensifier，20、Low pressure chamber on the left of first hydraulic intensifier，21、Left hand piston head，22、Piston rod，23、Divide cavity layer，24、Right hand piston head，25、Spring，26、Low pressure chamber on the right side of second hydraulic intensifier，27、High pressure chest on the right side of second hydraulic intensifier，28、High pressure chest on the left of second hydraulic intensifier，29、Low pressure chamber on the left of second hydraulic intensifier.
nullThe invention discloses a kind of hydraulic booster energy-recuperation system and control device，It includes accumulator 1，First electromagnetic valve 2，First hydraulic intensifier 3，First check valve 4，Second check valve 5，3rd check valve 6，4th check valve 7，Flow transducer 8，Second electromagnetic valve 9，Second hydraulic intensifier 10，5th electromagnetic valve 11，6th electromagnetic valve 12，7th electromagnetic valve 13，8th electromagnetic valve 14，Electronic control unit 15，Fuel tank 16，Low pressure chamber 17 on the right side of first hydraulic intensifier，High pressure chest 18 on the right side of first hydraulic intensifier，High pressure chest 19 on the left of first hydraulic intensifier，Low pressure chamber 20 on the left of first hydraulic intensifier，Left hand piston head 21，Piston rod 22，Divide cavity layer 23，Right hand piston head 24，Spring 25，Low pressure chamber 26 on the right side of second hydraulic intensifier，High pressure chest 27 on the right side of second hydraulic intensifier，High pressure chest 28 on the left of second hydraulic intensifier，Low pressure chamber 29 on the left of second hydraulic intensifier.
The work process that hydraulic system is concrete illustrates as a example by first group of hydraulic booster energy-recuperation system: when low pressure fluid is inputted by low pressure pipe, if electronic control unit 15 can receive flow transducer 8 and transmit flow signal, then electronic control unit 15 controls the first electromagnetic valve 2 at left lateral position, control the second electromagnetic valve 9 right lateral position (when now the working condition of second group of hydraulic booster energy-recuperation system sees following first electromagnetic valve at right lateral position, the working method of first group of hydraulic booster energy-recuperation system) simultaneously.A part of low pressure fluid, through the left lateral position of the first electromagnetic valve 2, flows into low pressure chamber 20 on the left of the first hydraulic intensifier.Owing to the area of left hand piston head 21 is 3/4 times of piston rod 22 the enclosed sectional area of cylindrical, i.e. SPiston head=3/4SPiston rod, according to the equilibrium relation of power, SPiston head*PLeft side low pressure chamber=(SPiston head-SPiston rod) * PLeft side high pressure chest=1/4SPiston head*PLeft side high pressure chest(PLeft side low pressure chamberLow pressure chamber 20 oil liquid pressure, P on the left of first hydraulic intensifierLeft side high pressure chestHigh pressure chest 19 oil liquid pressure on the left of first hydraulic intensifier).So, on the left of the first hydraulic intensifier, the pressure of high pressure chest 19 fluid is on the left of the first hydraulic intensifier 4 times of low pressure chamber 20 low pressure oil hydraulic coupling, it is achieved that the supercharging of low pressure fluid.Now, the pressure of the first check valve 4 opening part fluid is equal to the pressure of high pressure chest 19 high-voltage oil liquid on the left of the first hydraulic intensifier, and the pressure of import department's fluid is equal to the pressure of low pressure fluid, then the pressure of the first check valve 4 opening part is more than the pressure of import department, is closed.On the left of the first hydraulic intensifier after supercharging, the fluid of high pressure chest 19 flows into accumulator 1 through flow transducer 8 and the 3rd check valve 6, it is achieved accumulation of energy；A part of low pressure fluid flows into high pressure chest 18 on the right side of the first hydraulic intensifier through the second check valve 5, owing to the sectional area of right hand piston head is 3/4 times of piston rod 22 the enclosed sectional area of cylindrical, i.e. and SPiston head=3/4SPiston rod, according to the equilibrium relation of power, SPiston head*PRight side low pressure chamber=(SPiston head-SPiston rod) * PRight side high pressure chest(PRight side low pressure chamberLow pressure chamber 17 oil liquid pressure, P on the right side of first hydraulic intensifierRight side high pressure chestHigh pressure chest 18 oil liquid pressure on the right side of first hydraulic intensifier), then PRight side high pressure chest=4PRight side low pressure chamber.On the right side of the first hydraulic intensifier on the left of high pressure chest 18 and the first hydraulic intensifier under the effect of low pressure chamber 20 fluid, piston is turned right motion, and on the right side of the first hydraulic intensifier, low pressure chamber 17 fluid flows back to fuel tank 16 through the first electromagnetic valve 2.Owing to the pressure of the fluid of the 4th check valve 7 right-hand member is the pressure after supercharging, more than the pressure of the 4th check valve 7 left end fluid, so the 4th check valve 7 is closed.
When low pressure fluid is inputted by low pressure pipe, if electronic control unit 15 is not received by flow transducer 8 and transmits flow signal, then electronic control unit 15 controls the first electromagnetic valve 2 at right lateral position, control the second electromagnetic valve 9 left lateral position (when now the working condition of second group of hydraulic booster energy-recuperation system sees above first electromagnetic valve at left lateral position, the working method of first group of hydraulic booster energy-recuperation system) simultaneously.A part of low pressure fluid, through the right lateral position of the first electromagnetic valve 2, flows into low pressure chamber 17 on the right side of the first hydraulic intensifier.Owing to the area of right hand piston head 24 is 3/4 times of piston rod 22 the enclosed sectional area of cylindrical, i.e. SPiston head=3/4SPiston rod, according to the equilibrium relation of power, SPiston head*PRight side low pressure chamber=(SPiston head-SPiston rod) * PRight side high pressure chest=1/4SPiston head*PRight side high pressure chest(PRight side low pressure chamberLow pressure chamber 17 oil liquid pressure, P on the right side of first hydraulic intensifierRight side high pressure chestHigh pressure chest 18 oil liquid pressure on the right side of first hydraulic intensifier).So, on the right side of the first hydraulic intensifier, the pressure of high pressure chest 18 fluid is 4 times of low pressure oil hydraulic coupling, it is achieved that the supercharging of low pressure fluid.Now, the pressure of the second check valve 5 opening part fluid is equal to the pressure of high pressure chest 18 high-voltage oil liquid on the right side of the first hydraulic intensifier, and the pressure of import department's fluid is equal to the pressure of low pressure fluid, then the pressure of the second check valve 5 opening part is more than the pressure of import department, is closed.On the right side of the second hydraulic intensifier after supercharging, the fluid of high pressure chest 18 flows into accumulator 1 through the 4th check valve 7, it is achieved accumulation of energy；A part of low pressure fluid flows into high pressure chest 19 on the left of the first hydraulic intensifier through the first check valve 4, owing to the sectional area of left hand piston head is four times of piston rod 22 the enclosed sectional area of cylindrical, i.e. and SPiston head=3/4SPiston rod, according to the equilibrium relation of power, SPiston head*PLeft side low pressure chamber=(SPiston head-SPiston rod) * PLeft side high pressure chest(PLeft side low pressure chamberLow pressure chamber 20 oil liquid pressure, P on the left of first hydraulic intensifierLeft side high pressure chestHigh pressure chest 19 oil liquid pressure on the left of first hydraulic intensifier), then PLeft side high pressure chest=4PLeft side low pressure chamber.On the right side of the first hydraulic intensifier on the left of low pressure chamber 17 and the first hydraulic intensifier under the effect of high pressure chest 19 fluid, piston is turned right motion, and on the left of the first hydraulic intensifier, low pressure chamber 20 fluid flows back to fuel tank 16 through the first electromagnetic valve 2.Owing to the pressure of the fluid of the 3rd check valve 6 right-hand member is the pressure after supercharging, more than the pressure of the 3rd check valve 6 left end fluid, so the 3rd check valve 6 is closed.
Although above-mentioned in conjunction with the embodiments and the detailed description of the invention of the present invention is described by accompanying drawing; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme, those skilled in the art need not to pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (2)
1. a hydraulic booster energy-recuperation system, it is characterized in that: hydraulic booster energy-recuperation system sets two groups altogether, first group of hydraulic booster energy-recuperation system is made up of the first electromagnetic valve, the first hydraulic intensifier, the first check valve, the second check valve, the 3rd check valve, the 4th check valve, and second group of hydraulic booster energy-recuperation system is made up of the second electromagnetic valve, the second hydraulic intensifier, the 5th check valve, the 6th check valve, the 7th check valve, the 8th check valve；The control device of hydraulic booster energy-recuperation system includes electronic control unit and flow transducer；Hydraulic booster energy-recuperation system includes accumulator, fuel tank, described first electromagnetic valve is identical with the structure of described second electromagnetic valve, it is two position four-way solenoid valves, and connected mode in oil circuit is identical, first electromagnetic valve oil-in connects low pressure pipe, oil-out is connected with fuel tank, two interfaces of the first electromagnetic valve connect on the left of the first hydraulic intensifier low pressure chamber on the right side of low pressure chamber and the first hydraulic intensifier respectively, first electromagnetic valve is when left lateral position, the fluid of low pressure pipe flows into low pressure chamber on the left of the first hydraulic intensifier, on the right side of first hydraulic intensifier, low pressure chamber fluid flows back to fuel tank, first electromagnetic valve is when right lateral position, the fluid of low pressure pipe flows into low pressure chamber on the right side of the first hydraulic intensifier, on the left of first hydraulic intensifier, low pressure chamber fluid flows back to fuel tank；Second electromagnetic valve oil-in connects low pressure pipe, oil-out is connected with fuel tank, two interfaces of the second electromagnetic valve connect on the left of the second hydraulic intensifier low pressure chamber on the right side of low pressure chamber and the second hydraulic intensifier respectively, second electromagnetic valve is when left lateral position, the fluid of low pressure pipe flows into low pressure chamber on the left of the second hydraulic intensifier, on the right side of second hydraulic intensifier, low pressure chamber fluid flows back to fuel tank, second electromagnetic valve is when right lateral position, the fluid of low pressure pipe flows into low pressure chamber on the right side of the second hydraulic intensifier, on the left of second hydraulic intensifier, low pressure chamber fluid flows back to fuel tank, and described electronic control unit controls the first electromagnetic valve and the operating position of the second electromagnetic valve, when electronic control unit receive the flow signal that sensor transmits be not zero time, electronic control unit controls the first electromagnetic valve at left lateral position, control the second electromagnetic valve at right lateral position；When electronic control unit receive the flow signal that flow transducer transmits be zero time, electronic control unit controls the first electromagnetic valve at right lateral position, control the second electromagnetic valve at left lateral position, so can ensure that the piston of the first hydraulic intensifier and the second hydraulic intensifier moves toward rightabout, prevent the piston identical time, equidirectional motion causes excessive inertia, avoids producing fluid power impact simultaneously；On the flow transducer branch road that high pressure chest is connected with accumulator on the left of the first hydraulic intensifier, connect with the 3rd check valve, on the left of the first hydraulic intensifier between high pressure chest and the 3rd check valve, detect high pressure chest on the left of the first hydraulic intensifier and flow to the flow of accumulator fluid.
2. a kind of hydraulic booster energy-recuperation system as claimed in claim 1, it is characterized in that the outlet of described accumulator and the outlet of the 3rd check valve, the outlet of the 4th check valve, the outlet of the 7th check valve and the 8th check valve is connected, it is used for collecting the first hydraulic intensifier and the high-voltage oil liquid of the second hydraulic intensifier generation, store energy, it is achieved energy regenerating.
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| CN104533865B (en) * | 2015-01-08 | 2017-04-05 | 中国人民解放军国防科学技术大学 | A kind of hydraulic energy-saving controller |
| CN105626628B (en) * | 2016-03-01 | 2017-10-20 | 西安交通大学 | A kind of hydraulic energy transformation mechanism for human body walking energy regenerating |
| JP6842393B2 (en) * | 2017-09-11 | 2021-03-17 | 日立建機株式会社 | Pressure oil energy recovery device for work machines |
| CN109185239A (en) * | 2018-09-10 | 2019-01-11 | 深圳市中粤海洋能源科技有限公司 | A kind of tidal power generation pressure charging system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101463850A (en) * | 2007-12-17 | 2009-06-24 | 天津市华泰森淼生物工程技术有限公司 | Method and system for pressure relief energy recovery and recycle of superpressure plant in parallel |
| CN103477088A (en) * | 2011-04-21 | 2013-12-25 | 瓦锡兰芬兰有限公司 | Hydraulic system and operating method |
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| CN103741755B (en) * | 2013-10-17 | 2015-09-23 | 南京工业大学 | A kind of excavator energy-recuperation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101463850A (en) * | 2007-12-17 | 2009-06-24 | 天津市华泰森淼生物工程技术有限公司 | Method and system for pressure relief energy recovery and recycle of superpressure plant in parallel |
| CN103477088A (en) * | 2011-04-21 | 2013-12-25 | 瓦锡兰芬兰有限公司 | Hydraulic system and operating method |
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