CN105804147B - A kind of hydraulic crawler excavator revolving dial energy conserving system - Google Patents
A kind of hydraulic crawler excavator revolving dial energy conserving system Download PDFInfo
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- CN105804147B CN105804147B CN201610157342.3A CN201610157342A CN105804147B CN 105804147 B CN105804147 B CN 105804147B CN 201610157342 A CN201610157342 A CN 201610157342A CN 105804147 B CN105804147 B CN 105804147B
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- way electromagnetic
- electromagnetic directional
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of hydraulic crawler excavator revolving dial energy conserving system, the system is made up of the hydraulic control system of revolving platform of excavator, including hydraulic pump（1）, engine（2）, overflow valve（3）, three-position four-way electromagnetic directional valve（4）, first check valve（5）Deng, it is characterised in that accumulator apparatus, and the series boosting cylinder before accumulator are added in hydraulic control system.The energy storage consumed can will be braked when revolving dial is braked in accumulator, while the pressure of fluid in accumulator can be increased.The present invention can reduce the energy expenditure in revolving platform of excavator braking procedure, reach the purpose of energy-conservation.
Description
Technical field
The present invention relates to excavating machinery, more particularly, to a kind of hydraulic energy-saving system of revolving platform of excavator.
Background technology
The revolving dial of hydraulic crawler excavator needs frequently to start and brake to meet the needs of work, in revolving dial
Two processes are inverted with empty bucket, it is necessary to undergo full bucket and rotate forward in the course of work, each process includes revolving dial acceleration and made
Dynamic two processes of slowing down.Because the inertia of revolving dial is larger, during retarding braking, hydraulic oil is flowed back to by choke valve
Fuel tank, larger energy loss can be caused, cause the waste of the energy.
The content of the invention
In order to solve the above problems, the present invention proposes a kind of hydraulic crawler excavator revolving dial energy conserving system, can be effective
Recovery hydraulic pressure revolving platform of excavator braking when energy.
A kind of hydraulic crawler excavator revolving dial energy conserving system, including variable pump 1, engine 2, overflow valve 3,3-position 4-way electricity
5, second, the check valve of magnetic reversal valve 4, first check valve 6, the 3rd check valve 7, the 4th check valve 8, hydraulic motor 9,
14, first 3-position-3-way solenoid directional control valve 10, pressurized cylinder 11, piston 12, accumulator 13, pressure sensor bi-bit bi-pass electromagnetism
15, second two-position two-way electromagnetic directional valves 16 of reversal valve, controller 17, the 3rd two-position two-way electromagnetic directional valve 18, displacement
Sensor 19, the 5th check valve 20, return spring 21；Characterized in that, the entrance of hydraulic pump 1 is connected with fuel tank, fuel tank with
The overflow valve 3 for preventing hydraulic pump 1 from overloading is parallel between three-position four-way electromagnetic directional valve 4, hydraulic pump 1 exports and three four
The C mouths of electric change valve 4 are connected, and the A mouths with three-position four-way electromagnetic directional valve 4, B mouths are connected hydraulic motor 9 respectively, first
Check valve 5 and the 3rd check valve 7 are connected with the A mouths of three-position four-way electromagnetic directional valve 4, second check valve 6 and the 4th list
It is connected to valve 8 with the B mouths of three-position four-way electromagnetic directional valve 4, the D mouths of three-position four-way electromagnetic directional valve 4 are connected with fuel tank, the 3rd
Check valve 7 and the 4th check valve 8 are connected with fuel tank, and first check valve 5 and second check valve 6 change with 3-position-3-way electromagnetism
It is connected to the E mouths of valve 10, the G mouths of 3-position-3-way solenoid directional control valve 10 are connected with the high pressure chest and low pressure chamber of pressurized cylinder 11, supercharging
The low pressure chamber of cylinder 11 is connected with first two-position two-way electromagnetic directional valve 15, first two-position two-way electromagnetic directional valve 15 and fuel tank
It is connected, the high pressure chest of pressurized cylinder 11 is connected with the 3rd two-position two-way electromagnetic directional valve 18, the 3rd bi-bit bi-pass electromagnetic switch
Valve 18 is connected with fuel tank, and the high pressure chest of pressurized cylinder 11 is connected with the 5th check valve 20, the 5th check valve 20 and accumulator 13
It is connected, accumulator 13 is connected with second two-position two-way electromagnetic directional valve 16, second two-position two-way electromagnetic directional valve 16 and three
The C mouths of position three-way solenoid valve 10 are connected, and controller 17 can export pressure according to the accumulator 13 that pressure sensor 14 measures
The displacement of piston 12 and handle signal that displacement transducer 19 in power and the low pressure chamber of pressurized cylinder 11 measures control each reversal valve
Connection and blocking；Hydraulic crawler excavator revolving dial rotates forward three-position four-way electromagnetic directional valve 4 under operating mode and is in left operating position, and three
Position three-way solenoid valve 10 is in left operating position, first two-position two-way electromagnetic directional valve, 15, second bi-bit bi-pass electricity
Magnetic reversal valve 16 and the 3rd two-position two-way electromagnetic directional valve 18 are in right operating position, and now accumulator 13 does not store energy
Amount, hydraulic motor 9 is driven to be rotated with dynamic load by hydraulic pump 1；Hydraulic crawler excavator revolving dial is rotated forward under damped condition, three four
Electric change valve 4 is in an intermediate position, and now load-strap hydrodynamic pressure motor 9 rotates, and hydraulic motor 9 is in pump condition, three three
Electric change valve 10 is in right operating position, and first two-position two-way electromagnetic directional valve, 15, second bi-bit bi-pass electromagnetism change
Right operating position is in valve 16 and the 3rd two-position two-way electromagnetic directional valve 18, now work of the accumulator 13 in pressurized cylinder 11
Start to store hydraulic oil under, pressurized cylinder 11 includes high pressure chest and low pressure chamber, and the area A1 of the low pressure chamber of piston 12 is high pressure chest
5 times of middle piston area A2；Under hydraulic crawler excavator revolving dial reversing damped condition, three-position four-way electromagnetic directional valve 4 is in the right side first
Operating position, 3-position-3-way solenoid directional control valve 10 are in left operating position, first two-position two-way electromagnetic directional valve 15, the 3rd
Two-position two-way electromagnetic directional valve 18 is in right operating position, and second two-position two-way electromagnetic directional valve 16 is in left operating position,
Hydraulic motor 9 is now driven to be rotated with dynamic load together by accumulator 13 and hydraulic pump 1, it is most in the mesohigh oil consumption of accumulator 13
When, control 3-position-3-way solenoid directional control valve 10 to be in left operating position, first bi-bit bi-pass electromagnetic switch by controller 17
Valve 15 and the 3rd two-position two-way electromagnetic directional valve 18 are in left operating position, at second two-position two-way electromagnetic directional valve 16
In right operating position, now the fluid in the low pressure chamber of pressurized cylinder 11 flows back to fuel tank, and return spring 21 makes the piston in pressurized cylinder 11
12 return to original position, while the hydraulic oil in fuel tank flows into high pressure chest, avoids the occurrence of emptying phenomenon, and original position is returned in piston 12
Afterwards, the Displacement Feedback of piston 12 to controller 17, controller 17 are controlled into 3-position-3-way solenoid directional control valve by displacement transducer 19
10 are in right operating position, first two-position two-way electromagnetic directional valve, 15, second two-position two-way electromagnetic directional valves 16 and the 3rd
Individual two-position two-way electromagnetic directional valve 18 is in left operating position, and the removal process for braking energy thereafter is prepared.
Advantage for present invention
1 due to hydraulic crawler excavator revolving dial using choke valve brake caused by energy loss it is excessive, can using accumulator
With by the energy regenerating of loss, and the energy utilization of accumulator storage get up it is convenient and swift.
The problem of hydraulic oil of 2 accumulators storage can produce insufficient pressure, will can be stored using pressurized cylinder in accumulator
Hydraulic oil supercharging, reach the maximization that Brake energy recovery utilizes.
Brief description of the drawings
Fig. 1 is the arrangement schematic diagram of hydraulic crawler excavator revolving dial energy conserving system of the present invention.
Embodiment
1st, hydraulic pump, 2, engine, 3, overflow valve, 4, three-position four-way electromagnetic directional valve, 5, first check valves, 6, second
Individual check valve, 7, the 3rd check valves, 8, the 4th check valves, 9, hydraulic motor, 10,3-position-3-way solenoid directional control valve, 11, increase
Cylinder pressure, 12, piston, 13, accumulator, 14, pressure sensor, 15, first two-position two-way electromagnetic directional valves, 16, second two
Two electric change valves of position, 17, controller, 18, the 3rd two-position two-way electromagnetic directional valves, the 19, displacement transducer, the 20, the 5th
Individual check valve, 21, return spring.
The present invention will be further described below in conjunction with the accompanying drawings
As described in Figure 1, hydraulic crawler excavator revolving dial energy conserving system of the present invention includes：1st, hydraulic pump, 2, start
Machine, 3, overflow valve, 4, three-position four-way electromagnetic directional valve, 5, first check valves, 6, second check valves, 7, the 3rd are unidirectional
Valve, 8, the 4th check valves, 9, hydraulic motor, 10,3-position-3-way solenoid directional control valve, 11, pressurized cylinder, 12, piston, 13, accumulation of energy
Device, 14, pressure sensor, 15, first two-position two-way electromagnetic directional valves, 16, second two-position two-way electromagnetic directional valves, 17,
Controller, 18, the 3rd two-position two-way electromagnetic directional valves, 19, displacement transducer, 20, the 5th check valves, 21, return spring.
The connected mode of this energy conserving system is：The entrance of hydraulic pump 1 is connected with fuel tank, in fuel tank and 3-position 4-way electromagnetic switch
The overflow valve 3 for preventing hydraulic pump 1 from overloading, the outlet of hydraulic pump 1 and the C of three-position four-way electromagnetic directional valve 4 are parallel between valve 4
Mouthful it is connected, the A mouths with three-position four-way electromagnetic directional valve 4, B mouths are connected hydraulic motor 9 respectively, first check valve 5 and the 3rd
Check valve 7 is connected with the A mouths of three-position four-way electromagnetic directional valve 4, second check valve 6 and the 4th check valve 8 and 3-position 4-way
The B mouths of solenoid directional control valve 4 are connected, and the D mouths of three-position four-way electromagnetic directional valve 4 are connected with fuel tank, the 3rd check valve 7 and the 4th
Check valve 8 is connected with fuel tank, the E mouth phases of first check valve 5 and second check valve 6 and 3-position-3-way solenoid directional control valve 10
Even, the G mouths of 3-position-3-way solenoid directional control valve 10 are connected with the high pressure chest and low pressure chamber of pressurized cylinder 11, the low pressure chamber of pressurized cylinder 11 and
First two-position two-way electromagnetic directional valve 15 is connected, and first two-position two-way electromagnetic directional valve 15 is connected with fuel tank, pressurized cylinder 11
High pressure chest be connected with the 3rd two-position two-way electromagnetic directional valve 18, the 3rd two-position two-way electromagnetic directional valve 18 and fuel tank phase
Even, the high pressure chest of pressurized cylinder 11 is connected with the 5th check valve 20, and the 5th check valve 20 is connected with accumulator 13, accumulator 13
It is connected with second two-position two-way electromagnetic directional valve 16, second two-position two-way electromagnetic directional valve 16 and 3-position-3-way electromagnetic switch
The C mouths of valve 10 are connected, and piston 12 is arranged in pressurized cylinder 11, and return spring 21 is arranged among the high pressure chest of pressurized cylinder 11, pressure
Force snesor 14 is arranged on the hydraulic fluid pressure that accumulator 13 is measured on the oil circuit of accumulator 13, and displacement transducer 19 is arranged on supercharging
The position of piston 12 is measured in cylinder 11, controller 17 is connected by circuit with pressure sensor 14, displacement transducer 19, for obtaining
The displacement of the oil pressure and piston 12 of accumulator 13 is taken, while controller 17 passes through circuit and three-position four-way electromagnetic directional valve 4, three
The two-position two-way electromagnetic directional valve 16 and the 3rd of two-position two-way electromagnetic directional valve 15, second of three-way solenoid valve 10, first
Individual two-position two-way electromagnetic directional valve 18 is connected.
Revolution first after excavator is excavated, i.e., during swing with loaded bucket, make three by regulation handle signal
Position four-way electromagnetic reversing valve 4 is in left operating position, while 3-position-3-way solenoid directional control valve 10 is in left operating position, excavator
Revolving dial, which is in, rotates forward operating mode, and now, the oil that hydraulic pump 1 exports enters hydraulic motor 9 by three-position four-way electromagnetic directional valve 4
Revolving dial is driven to rotate；In driver's brake pedal, during the control of controller 17 three-position four-way electromagnetic directional valve 4 is in
Operating position, now hydraulic pump 1 is in drain charge state, while 3-position-3-way solenoid directional control valve 10 is in right operating position, load
Hydraulic motor 9 is driven to rotate, hydraulic motor 9 is in pump condition, and revolving platform of excavator starts to brake, the oil that hydraulic motor 9 is discharged
Liquid enters in accumulator 13 by pressurized cylinder 11, until revolving platform of excavator is braked completely, completes the recovery of braking energy
Journey；Now first two-position two-way electromagnetic directional valve, 15, second two-position two-way electromagnetic directional valves 16 and the 3rd bi-bit bi-pass
Solenoid directional control valve 18 is located at right operating position simultaneously；The operation principle of pressurized cylinder 11:The fluid that hydraulic motor 9 flows out passes through three
Three-way solenoid valve 10 enters in the high pressure chest and low pressure chamber of pressurized cylinder 11 simultaneously, because low pressure cavity area is high pressure cavity area
5 times, so 5 times for hydraulic fluid pressure in low pressure chamber of hydraulic fluid pressure in high pressure chest；Such as low pressure chamber hydraulic fluid pressure P1
=10Mpa, then high pressure chest oil pressure P2=50Mpa, while the hydraulic oil in high pressure chest flows into by the 5th check valve 20
Being stored in accumulator 13, low pressure chamber is connected by first two-position two-way electromagnetic directional valve 15 with fuel tank, and now first
Individual two-position two-way electromagnetic directional valve 15 is in right operating position, and the hydraulic oil reservoir in low pressure chamber is stored in low pressure chamber；In excavator
Carry out second to turn round, i.e., during swing with empty bucket, regulation handle signal makes three-position four-way electromagnetic directional valve 4 be in right work
Position, while 3-position-3-way solenoid directional control valve 10 is in left operating position, first two-position two-way electromagnetic directional valve 15 is in the right side
Operating position, second two-position two-way electromagnetic directional valve 16 are in left operating position, the 3rd two-position two-way electromagnetic directional valve 18
In right operating position, revolving platform of excavator is in reversing damped condition；Now, hydraulic oil is flowed out by second by accumulator 13
Two-position two-way electromagnetic directional valve 16 and three-position four-way electromagnetic directional valve 4 enter among hydraulic motor 9, the driving revolution of hydraulic motor 9
Platform rotates, i.e. the rotation of revolving platform of excavator drives simultaneously by accumulator 13 and hydraulic pump 1, in accumulator 13
Pressure sensor 14 fuel injection pressure signal of accumulator 13 is delivered in controller 17, when stored in accumulator 13 fluid deficiency
During driving hydraulic motor 9, i.e., when the oil pressure of accumulator 13 is less than limit value, controller 17 controls second bi-bit bi-pass electromagnetism
Reversal valve 16 is in right operating position, and the 3rd two-position two-way electromagnetic directional valve 18 is located at left operating position, now only by hydraulic pressure
Fluid driving hydraulic motor 9 in pump 1, and low pressure chamber fluid enters fuel tank, the return spring 21 in high pressure chest, which acts on, makes piston
12 returns, simultaneously because high pressure chest and fuel tank have a pressure difference, the fluid in fuel tank passes through the 3rd two-position two-way electromagnetic directional valve
18 are back to high pressure chest, avoid occurring emptying phenomenon in high pressure chest；Displacement transducer 19 in pressurized cylinder 11 measures piston
12 position, controller 17 controls first two-position two-way electromagnetic directional valve 15 and the 3rd bi-bit bi-pass electricity after the return of piston 12
Magnetic reversal valve 18 is in right operating position, and 3-position-3-way solenoid directional control valve 10 is in left operating position, completes in pressurized cylinder 11
The return process of piston 12, it is that energy regenerating when braking later is prepared.
Claims (5)
1. a kind of hydraulic crawler excavator revolving dial energy conserving system, including hydraulic pump (1), engine (2), overflow valve (3), three four
Electric change valve (4), first check valve (5), second check valve (6), the 3rd check valve (7), the 4th check valve
(8), hydraulic motor (9), 3-position-3-way solenoid directional control valve (10), pressurized cylinder (11), piston (12), accumulator (13), pressure pass
Sensor (14), first two-position two-way electromagnetic directional valve (15), second two-position two-way electromagnetic directional valve (16), controller
(17), the 3rd two-position two-way electromagnetic directional valve (18), displacement transducer (19), the 5th check valve (20), return spring
(21)；Characterized in that, hydraulic pump (1) entrance is connected with fuel tank, it is in parallel between fuel tank and three-position four-way electromagnetic directional valve (4)
There are the overflow valve (3) for preventing hydraulic pump (1) from overloading, hydraulic pump (1) outlet and the C mouths of three-position four-way electromagnetic directional valve (4)
It is connected, the A mouths with three-position four-way electromagnetic directional valve (4), B mouths are connected hydraulic motor (9) respectively, first check valve (5) and the
Three check valves (7) are connected with the A mouths of three-position four-way electromagnetic directional valve (4), second check valve (6) and the 4th check valve
(8) the B mouths with three-position four-way electromagnetic directional valve (4) are connected, and the D mouths of three-position four-way electromagnetic directional valve (4) are connected with fuel tank, and the 3rd
Individual check valve (7) and the 4th check valve (8) are connected with fuel tank, first check valve (5) and second check valve (6) and three
The E mouths of three-way solenoid valve (10) are connected, the G mouths of 3-position-3-way solenoid directional control valve (10) and the high pressure chest of pressurized cylinder (11) and
Low pressure chamber is connected, and the low pressure chamber of pressurized cylinder (11) is connected with first two-position two-way electromagnetic directional valve (15), first two two
Electric change valve (15) is connected with fuel tank, the high pressure chest of pressurized cylinder (11) and the 3rd two-position two-way electromagnetic directional valve (18) phase
Even, the 3rd two-position two-way electromagnetic directional valve (18) is connected with fuel tank, the high pressure chest of pressurized cylinder (11) and the 5th check valve
(20) it is connected, the 5th check valve (20) is connected with accumulator (13), accumulator (13) and second bi-bit bi-pass electromagnetic switch
Valve (16) is connected, and second two-position two-way electromagnetic directional valve (16) is connected with the C mouths of 3-position-3-way solenoid directional control valve (10), control
Device (17) can be according to the position in accumulator (13) outlet pressure and pressurized cylinder (11) low pressure chamber that pressure sensor (14) measure
Piston (12) displacement and handle signal that displacement sensor (19) measures control the connection and blocking of each reversal valve.
A kind of 2. hydraulic crawler excavator revolving dial energy conserving system according to claim 1, it is characterised in that hydraulic crawler excavator
Revolving dial rotates forward three-position four-way electromagnetic directional valve (4) under operating mode and is in left operating position, 3-position-3-way solenoid directional control valve (10)
In left operating position, first two-position two-way electromagnetic directional valve (15), second two-position two-way electromagnetic directional valve (16) and
Three two-position two-way electromagnetic directional valves (18) are in right operating position, and now accumulator (13) does not store energy, by hydraulic pump
(1) hydraulic motor (9) band dynamic load is driven to rotate；Hydraulic crawler excavator revolving dial is rotated forward under damped condition, 3-position 4-way electromagnetism
Reversal valve (4) is in an intermediate position, now, is rotated by load-strap hydrodynamic pressure motor (9), hydraulic motor (9) is in pump condition, three
Three-way solenoid valve (10) is in right operating position, first two-position two-way electromagnetic directional valve (15), second bi-bit bi-pass
Solenoid directional control valve (16) and the 3rd two-position two-way electromagnetic directional valve (18) are in right operating position, and now accumulator (13) exists
Start to store hydraulic oil in the presence of pressurized cylinder (11), pressurized cylinder (11) includes high pressure chest and low pressure chamber, piston in low pressure chamber
Area A1 is 5 times of piston area A2 in high pressure chest；Under hydraulic crawler excavator revolving dial reversing damped condition, 3-position 4-way electromagnetism first
Reversal valve (4) is in right operating position, and 3-position-3-way solenoid directional control valve (10) is in left operating position, first bi-bit bi-pass electricity
Magnetic reversal valve (15) and the 3rd two-position two-way electromagnetic directional valve (18) are in right operating position, and second bi-bit bi-pass electromagnetism changes
Left operating position is in valve (16), now drives hydraulic motor (9) band dynamic load together by accumulator (13) and hydraulic pump (1)
Rotation, when accumulator (13) mesohigh oil consumption is most, 3-position-3-way solenoid directional control valve (10) is controlled by controller (17)
In left operating position, first two-position two-way electromagnetic directional valve (15), the 3rd two-position two-way electromagnetic directional valve (18) are in
Left operating position, second two-position two-way electromagnetic directional valve (16) are in right operating position, now in pressurized cylinder (11) low pressure chamber
Fluid flow back to fuel tank, return spring (21) makes the piston (12) in pressurized cylinder (11) return to original position, while the hydraulic pressure in fuel tank
Oil stream enters high pressure chest, avoids the occurrence of emptying phenomenon, after piston (12) returns to original position, by displacement transducer (19) by piston
(12) Displacement Feedback to controller (17), controller (17) control 3-position-3-way solenoid directional control valve (10) is in right operating position,
First two-position two-way electromagnetic directional valve (15), second two-position two-way electromagnetic directional valve (16) and the 3rd bi-bit bi-pass electromagnetism
Reversal valve (18) is in right operating position, and the removal process for braking energy thereafter is prepared.
3. a kind of hydraulic crawler excavator revolving dial energy conserving system according to claim 1, it is characterised in that using three four
The direction of electric change valve (4) control hydraulic motor (9) rotation, and then control the direction of motion of load；Using 3-position-3-way
The accumulation of energy process of solenoid directional control valve (10) control accumulator (13)；It is used for controlling using first two-position two-way electromagnetic directional valve (15)
The hydraulic oil of the low pressure chamber of pressurized cylinder (11) processed flows back to the process of fuel tank；Using second two-position two-way electromagnetic directional valve (16) come
Control the energy release process of accumulator (13)；The oil in fuel tank is controlled to enter using the 3rd two-position two-way electromagnetic directional valve (18)
In the high pressure chest for entering pressurized cylinder (11), the purpose of this process is to make piston (12) return.
4. hydraulic crawler excavator revolving dial energy conserving system according to claim 1, it is characterised in that：It is right by controller (17)
Three-position four-way electromagnetic directional valve (4), 3-position-3-way solenoid directional control valve (10), first two-position two-way electromagnetic directional valve (15),
Two two-position two-way electromagnetic directional valves (16), the 3rd two-position two-way electromagnetic directional valve (18) are controlled.
5. hydraulic crawler excavator revolving dial energy conserving system according to claim 1, it is characterised in that：3rd bi-bit bi-pass
Solenoid directional control valve (18) can carry out hydraulic oil after accumulator (13) energy discharges and finished to the high pressure chest of pressurized cylinder (11)
Supplement, prevent emptying phenomenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157342.3A CN105804147B (en) | 2016-03-21 | 2016-03-21 | A kind of hydraulic crawler excavator revolving dial energy conserving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157342.3A CN105804147B (en) | 2016-03-21 | 2016-03-21 | A kind of hydraulic crawler excavator revolving dial energy conserving system |
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| CN105804147A CN105804147A (en) | 2016-07-27 |
| CN105804147B true CN105804147B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610157342.3A Expired - Fee Related CN105804147B (en) | 2016-03-21 | 2016-03-21 | A kind of hydraulic crawler excavator revolving dial energy conserving system |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643276A (en) * | 2018-06-06 | 2018-10-12 | 马鞍山松鹤信息科技有限公司 | A kind of energy saving excavator with energy-recuperation system |
| CN108571028A (en) * | 2018-06-14 | 2018-09-25 | 长安大学 | A kind of hydraulic crawler excavator rotation energy recovery system and method |
| CN108915008B (en) * | 2018-07-09 | 2021-05-28 | 马鞍山市润启新材料科技有限公司 | Rotary hydraulic system of excavator |
| CN108915006B (en) * | 2018-07-09 | 2020-09-25 | 马鞍山市润启新材料科技有限公司 | Excavator energy recovery system |
| CN108894274B (en) * | 2018-07-27 | 2020-10-16 | 徐州工业职业技术学院 | Excavator gyration energy recuperation and system of recycling |
| CN108825596A (en) * | 2018-08-28 | 2018-11-16 | 长沙学院 | The velocity feedback formula of hydraulic gyration mechanism is accurately positioned anti-swing control device and method |
| CN108895049A (en) * | 2018-08-28 | 2018-11-27 | 长沙学院 | A kind of Feedback Oil accurate positioning stabilization control device and method of hydraulic cylinder |
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| JP2004028212A (en) * | 2002-06-26 | 2004-01-29 | Komatsu Ltd | Simultaneous recovery system of pressure oil energy |
| JP2011047460A (en) * | 2009-08-26 | 2011-03-10 | Kcm:Kk | Fluid pressure circuit and construction machine equipped with the same |
| CN102979133A (en) * | 2012-11-26 | 2013-03-20 | 柳州柳工挖掘机有限公司 | Rotary brake energy recycling device of hydraulic excavator |
| CN103437393A (en) * | 2013-08-30 | 2013-12-11 | 华南理工大学 | Rotation energy saving system of hydraulic excavator |
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2016
- 2016-03-21 CN CN201610157342.3A patent/CN105804147B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004028212A (en) * | 2002-06-26 | 2004-01-29 | Komatsu Ltd | Simultaneous recovery system of pressure oil energy |
| JP2011047460A (en) * | 2009-08-26 | 2011-03-10 | Kcm:Kk | Fluid pressure circuit and construction machine equipped with the same |
| CN102979133A (en) * | 2012-11-26 | 2013-03-20 | 柳州柳工挖掘机有限公司 | Rotary brake energy recycling device of hydraulic excavator |
| CN103437393A (en) * | 2013-08-30 | 2013-12-11 | 华南理工大学 | Rotation energy saving system of hydraulic excavator |
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| CN105804147A (en) | 2016-07-27 |
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