CN205618450U - Hydraulic system divides fender energy storage ware energy recuperation device - Google Patents
Hydraulic system divides fender energy storage ware energy recuperation device Download PDFInfo
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- CN205618450U CN205618450U CN201620214830.9U CN201620214830U CN205618450U CN 205618450 U CN205618450 U CN 205618450U CN 201620214830 U CN201620214830 U CN 201620214830U CN 205618450 U CN205618450 U CN 205618450U
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Abstract
The utility model discloses a hydraulic system divides fender energy storage ware energy recuperation device, by controller (1), high -pressure accumulator (2), low pressure energy storage ware (3), a pressure sensor (4), the 2nd pressure sensor (5), first check valve (6), (7 ), tribit tee bend electromagnetism direction valve (8), a proportional flow valve (9), the 2nd proportional flow valve (10), the 3rd proportional flow valve (11), oil inlet PO, oil return opening T, the energy recuperation device that oil -out P1 etc. Constitute. The device is installed on the oil circuit of pneumatic cylinder, and 2 (or more than 2) energy storage wares of adoption connect in parallel in same return circuit, divide into into two fenders according to charged pressure, and a height, two low energy storage wares, the device can be according to the sizes of load, divides to keep off the absorbed energy, divide and keep off release of energy. Under the prerequisite that satisfies system's speed governing function, can optimize energy storage ware performance, the furthest recovered energy has improved energy storage ware energy absorption efficiency.
Description
Technical field
This utility model relates to mechanical engineering field, particularly to be the power-saving technology of mechanical equipment hydraulic system.
Background technology
In the hydraulic system applications of machinery, often on executive component (such as the moved arm lifting cylinder of excavator) oil return line, use can produce the hydraulic valve of back pressure to control return pressure and flow, to control executive component acquisition motion smoothly, as the swing arm of hydraulic crawler excavator declines energy by throttling governor valve control motion.Throttling governor valve consumes swing arm and declines potential energy and produce heat and make hydraulic system heat up, and affects performance and the life-span of hydraulic system.
As the critical elements of hydraulic system, accumulator is usually used in hydraulic system, plays an important role absorption pressure fluctuation, reduction noise, minimizing impact.Additionally, the auxiliary power source that accumulator also reclaims frequently as hydraulic system energy and discharges.But due to the operating mode that different plant equipment, equipment are different, widely different to the performance requirement of accumulator, accumulator parameter selects (the blowing pressure, minimum operating pressure, maximum working pressure, the accumulator volume etc.) of Main Basis, uses an accumulator to be difficult to take into account the factor (such as life-span, sensitivity, volume, pressure limit, energy absorption efficiency etc.) of each side.All the more so especially for operating mode and load change the most greatly and the most frequently engineering machinery.For this, this utility model is as a example by excavator swing arm recovery system, 2 (or more than 2) accumulators are used to be connected in parallel in the same circuit, it is divided into into two gears by the blowing pressure, one high, low two accumulators, accumulator can be according to the size of load, and a point gear absorbs energy, a point gear releases energy.Adjust and on the premise of speed adjustment meeting system back pressure, it is possible to optimize accumulator performance, reclaimed energy to greatest extent, improve accumulator energy absorption efficiency.
Utility model content
In view of the disadvantage mentioned above of prior art, the purpose of this utility model is to provide a kind of point of gear energy recycle device, and can be according to the size of load, and a point gear absorbs energy, a point gear releases energy.On the premise of meeting system speed-regulating function, it is possible to optimize accumulator performance, recover energy to greatest extent, improve accumulator energy absorption efficiency.
The purpose of this utility model is to be realized by following means.
Hydraulic system divides gear accumulator energy recycle device, is made up of controller 1, high pressure accumulator 2, low pressure accumulator the 3, first pressure transducer the 4, second pressure transducer the 5, first check valve the 6, second check valve 7,3-position-3-way electromagnetic direction valve the 8, first proportional flow control valve the 9, second proportional flow control valve the 10, the 3rd proportional flow control valve 11, oil inlet P O, oil return inlet T, oil-out P1；
Its hydraulic connecting relation is: oil inlet P O is connected with the 3rd proportional flow control valve 11,3-position-3-way solenoid directional control valve 8 respectively；3rd proportional flow control valve 11 is connected with oil return inlet T, fuel tank 12 successively；3-position-3-way solenoid directional control valve 8 is divided into two-way, and a road is connected with first check valve the 6, first pressure transducer 4, high pressure accumulator 2 successively；Another road is connected with second check valve the 7, second pressure transducer 5, low pressure accumulator 3 successively；It is connected to the first proportional flow control valve 9 on oil circuit between high pressure accumulator 2 and the first check valve 6；It is connected to the second proportional flow control valve 10 on oil circuit between low pressure accumulator 3 and the second check valve 7；First proportional flow control valve 9 is connected with oil-out P1；Second proportional flow control valve 10 is connected with oil-out P1；Oil-out P1 is connected on the oil circuit between check valve 15 and reversal valve 17；Oil return inlet T is connected with fuel tank 12.
Additionally, have employed a point swing arm hydraulic system for gear energy recycle device to eliminate choke valve 18；It is mounted with force transducer 22 at boom cylinder 19, its cavity of resorption oil circuit is mounted with solenoid directional control valve 21.
Electric connecting relation: controller 1 is connected respectively with three proportional flow control valves, 3-position-3-way solenoid directional control valve 8, two pressure transducers, force transducer 22, solenoid directional control valves 21.
Accompanying drawing illustrates:
Fig. 1 does not installs a point gear energy recycle device swing arm Hydraulic System Principle schematic diagram.
Fig. 2 is mounted with a point gear energy recycle device swing arm Hydraulic System Principle schematic diagram.
In figure: 1-controller 2-high pressure accumulator 3-low pressure accumulator 4-the first pressure transducer 5-the second pressure transducer 6-the first check valve 7-the second check valve 8-3-position-3-way electromagnetic direction valve 9-the first proportional flow control valve 10 second proportional flow control valve 11-the 3rd proportional flow control valve 12-fuel tank 13-hydraulic pump 14-motor, (or other power) 15-the 3rd check valve 16-overflow valve 17-three position four-way directional control valve, (or banked direction control valves) 18-choke valve 19-boom cylinder 20-loads 21-solenoid directional control valve 22-force transducer
Detailed description of the invention:
Fig. 1 is a kind of traditional excavator swing arm Hydraulic System Principle schematic diagram of example
Its mechanical connection relation is: motor 14 is mechanically connected with hydraulic pump 13；Hydraulic connecting relation is: hydraulic pump 13 is connected by oil pipe with fuel tank the 12, the 3rd check valve 15, overflow valve 16；Overflow valve 16 is connected with fuel tank 12 by oil pipe；3rd check valve 15 is connected with 3-position 4-way direction valve (or banked direction control valves) 17, oil cylinder 19 epicoele successively；Boom cylinder 19 cavity of resorption is connected with choke valve 18；Choke valve 18 is connected with solenoid directional control valve 21；Reversal valve is connected with fuel tank 12.
Fig. 2 is on the oil return line in the big chamber of boom cylinder, have employed this utility model utility model the principle schematic of point gear energy recycle device, point gear energy recycle device by controller 1, high pressure accumulator 2, low pressure accumulator the 3, first pressure transducer the 4, second pressure transducer the 5, first check valve the 6, second check valve 7,8, three proportional flow control valves of 3-position-3-way solenoid directional control valve 9,10,11, oil inlet P O, oil return inlet T, oil-out P1 constitute.
As a example by Hydraulic Excavator's Boom oil cylinder 19 work process, how explanation point gear energy recycle device works below.
To conventional without energy regenerating excavator swing arm hydraulic system (such as Fig. 1), when oil cylinder 19 works, when the big chamber oil-feed of boom cylinder 19, boom cylinder 19 lifts weight, and the energy of consumption may be regarded as effective energy.When loculus oil-feed, swing arm decline, now swing arm have huge potential energy under weight or outer load effect, swing arm declines the acting of boom cylinder 19 piston, accelerate boom cylinder 19 to move, in order to make swing arm obtain motion smoothly, on oil return line, generally fill choke valve 18, swing arm oil return line just produces suitable back pressure and flow, realizing easy motion, when fluid flows through choke valve 18, this portion of energy becomes heat energy and have lost the most in vain.
(1) when excavator hydraulic system needs energy regenerating, point gear energy recycle device is connected to the swing arm hydraulic system (such as Fig. 2) of excavator
(2) when needs reclaim these energy, electromagnetic switch valve 21 obtains electric, and the loop of the boom cylinder 19 that original system leads to reversal valve 17 cuts off；3-position-3-way electromagnetic switch valve 8 obtains electric simultaneously, enters swing arm and reclaims state.Recording magnitude of load by force transducer 22, control system sends required preferably PO and Q0 instruction.
If required P0 is more than the blowing pressure of high pressure accumulator 2, control 3-position-3-way electromagnetic switch valve 8 and be operated in upper, the big chamber oil return of boom cylinder 19 is filled with high pressure accumulator 2 through 3-position-3-way electromagnetic switch valve the 8, first check valve 6, and excess traffic passing ratio choke valve 11, T mouth flow back to fuel tank 12.
If required P0 is less than the blowing pressure of high pressure accumulator 2, and when being higher than the blowing pressure of low pressure accumulator 3, control 3-position-3-way electromagnetic switch valve 8 and be operated in bottom, the big chamber oil return of boom cylinder 19 is filled with low pressure accumulator 3 through 3-position-3-way electromagnetic switch valve 8,7, and excess traffic passing ratio choke valve 11, T mouth flow back to fuel tank 12.
Therefore, no matter oil return belongs to high pressure or low pressure needed for swing arm, can make it possible to be recycled.
If required P0 is less than the blowing pressure of low pressure accumulator 3, controlling 3-position-3-way electromagnetic switch valve 8 and be operated in middle position, passing ratio choke valve 11 is crossed in the big chamber oil return of boom cylinder 19, T mouth flows back to fuel tank 2.
(3) when boom cylinder 19 needs to lift work, record magnitude of load by force transducer 22, pressure transducer 4,5 record the oil liquid pressure of accumulator 2,3 respectively.If lifting the big cavity pressure of oil cylinder 19 of goods when high pressure accumulator 2 working pressure range, the first proportional flow control valve 9 is opened, and high pressure accumulator 2 provides fluid to system by the first proportional flow control valve 9 together with hydraulic pump 13；If the big cavity pressure lifting goods is that the second proportional flow control valve 10 is opened in low pressure accumulator 3 working range, low pressure accumulator 3 passes through the second proportional flow control valve 10, provides fluid to swing arm system together with hydraulic pump 13.
Claims (4)
1. hydraulic system divides gear accumulator energy recycle device, it is characterized in that, be made up of controller (1), high pressure accumulator (2), low pressure accumulator (3), the first pressure transducer (4), the second pressure transducer (5), the first check valve (6), the second check valve (7), 3-position-3-way electromagnetic direction valve (8), the first proportional flow control valve (9), the second proportional flow control valve (10), the 3rd proportional flow control valve (11), oil inlet P O, oil return inlet T, oil-out P1；
Its hydraulic connecting relation is: oil inlet P O is connected with the 3rd proportional flow control valve (11), 3-position-3-way solenoid directional control valve (8) respectively；3rd proportional flow control valve (11) is connected with oil return inlet T, fuel tank (12) successively；3-position-3-way solenoid directional control valve (8) is divided into two-way, and a road is connected with the first check valve (6), the first pressure transducer (4), high pressure accumulator (2) successively；Another road is connected with the second check valve (7), the second pressure transducer (5), low pressure accumulator (3) successively；The first proportional flow control valve (9) it is connected on oil circuit between high pressure accumulator (2) and the first check valve (6)；The second proportional flow control valve (10) it is connected on oil circuit between low pressure accumulator (3) and the second check valve (7)；First proportional flow control valve (9) is connected with oil-out P1；Second proportional flow control valve (10) is connected with oil-out P1；Oil-out P1 is connected on the oil circuit between check valve (15) and reversal valve (17)；Oil return inlet T is connected with fuel tank (12).
Hydraulic system the most according to claim 1 divides gear accumulator energy recycle device, it is characterized in that, at least 2 accumulators are used to be connected in parallel in the same circuit, accumulator is divided into at least two gears, the most at least low pressure accumulator (3) and high pressure accumulator (2) by the blowing pressure.
Hydraulic system the most according to claim 1 divides gear accumulator energy recycle device, it is characterised in that is provided with force transducer (22) on arm oil cylinder (19), is mounted with solenoid directional control valve (21) on its cavity of resorption oil circuit.
Hydraulic system the most according to claim 1 divides gear accumulator energy recycle device, it is characterised in that the 3rd proportional flow control valve (11) is connected to oil cylinder (19) for off-load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214830.9U CN205618450U (en) | 2016-03-21 | 2016-03-21 | Hydraulic system divides fender energy storage ware energy recuperation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620214830.9U CN205618450U (en) | 2016-03-21 | 2016-03-21 | Hydraulic system divides fender energy storage ware energy recuperation device |
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| CN205618450U true CN205618450U (en) | 2016-10-05 |
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| CN201620214830.9U Expired - Fee Related CN205618450U (en) | 2016-03-21 | 2016-03-21 | Hydraulic system divides fender energy storage ware energy recuperation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453239A (en) * | 2018-03-12 | 2018-08-28 | 宁波海天金属成型设备有限公司 | Real-time closed-loop control cylinder press-shoot control system and method |
| CN109253120A (en) * | 2018-10-17 | 2019-01-22 | 太原理工大学 | Combination cylinder energy conservation hoisting system |
| CN109538259A (en) * | 2019-01-08 | 2019-03-29 | 辽宁工程技术大学 | A kind of hydraulic vertical prop stepped down with the quick energy-absorbing of accumulator |
| CN114892743A (en) * | 2022-06-08 | 2022-08-12 | 江苏大学 | Excavator potential energy recovery system based on real-time position and posture |
-
2016
- 2016-03-21 CN CN201620214830.9U patent/CN205618450U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453239A (en) * | 2018-03-12 | 2018-08-28 | 宁波海天金属成型设备有限公司 | Real-time closed-loop control cylinder press-shoot control system and method |
| CN108453239B (en) * | 2018-03-12 | 2024-03-15 | 宁波海天金属成型设备有限公司 | Real-time closed-loop control oil cylinder injection control system and method |
| CN109253120A (en) * | 2018-10-17 | 2019-01-22 | 太原理工大学 | Combination cylinder energy conservation hoisting system |
| CN109538259A (en) * | 2019-01-08 | 2019-03-29 | 辽宁工程技术大学 | A kind of hydraulic vertical prop stepped down with the quick energy-absorbing of accumulator |
| CN114892743A (en) * | 2022-06-08 | 2022-08-12 | 江苏大学 | Excavator potential energy recovery system based on real-time position and posture |
| CN114892743B (en) * | 2022-06-08 | 2024-04-09 | 江苏大学 | Excavator potential energy recovery system based on real-time pose |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20190321 |