CN205136183U - Energy -conserving high -efficient hydraulic lifting system of multi -cylinder synchronization - Google Patents
Energy -conserving high -efficient hydraulic lifting system of multi -cylinder synchronization Download PDFInfo
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- CN205136183U CN205136183U CN201520837395.0U CN201520837395U CN205136183U CN 205136183 U CN205136183 U CN 205136183U CN 201520837395 U CN201520837395 U CN 201520837395U CN 205136183 U CN205136183 U CN 205136183U
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 30
- 238000011084 recovery Methods 0.000 claims description 20
- 238000005086 pumping Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 239000002828 fuel tank Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 12
- 239000010720 hydraulic oil Substances 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000011897 real-time detection Methods 0.000 abstract description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 88
- 238000010586 diagram Methods 0.000 description 9
- 230000007306 turnover Effects 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model provides an energy -conserving high -efficient hydraulic lifting system of multi -cylinder synchronization, is applicable to lift system such as hydraulic elevator, construction lift platform. The system includes feed circuit, volume speed governing and energy recuperation return circuit, manual lift return circuit, locks return circuit, pneumatic cylinder and angular transducer in step. The feed circuit be used for replenishing since lock in step the return circuit adjust in the closed loop system who causes with system leak hydraulic oil less than and reduce the temperature rise of fluid, volume speed governing and energy recuperation return circuit provide power, speed regulation and energy recuperation for the system, manual lift platform when manual lift return circuit function breaks down for the system, a plurality of pneumatic cylinders are synchronous to go up and down and platform locking hydro -cylinder when static in order to adjust to lock the return circuit function in step, the position appearance of angular transducer real -time detection platform is fed back to control center, realizes closed -loop control. The system is energy -efficient, realizes energy recuperation and multi -cylinder fine synchronization, the anti unbalance loading of lift platform ability reinforce, and the operation is stable, and the reliability is high.
Description
Technical field
The utility model relates to a kind of elevating system, especially a kind of multi-cylinder synchronous efficient energy-saving hydraulic lifting system being applicable to hudraulic lift, construction lifting platform.
Background technique
The driving mode of elevating system mainly contains traction-type and hydraulic type.Hydraulic driving have large, the stepless speed regulation of exerting oneself, system succinct, control the advantages such as convenient, but hydraulically powered efficiency is on the low side compared to tractive driving." green energy conservation " is the developing goal in elevator system future.At present, electrical-liquid control and volumetric speed control is mostly adopted to control, although achieve the minimizing of the energy loss of ascending for elevator, when elevator is descending in hydraulic elevator system, fluid in oil cylinder, under pressure through descending throttle valve, can cause the temperature rise of hydraulic system.The descending gravitational potential energy of elevator does not only utilize, and is also converted into heat energy and causes fluid temperature rise, and influential system is stablized.
The supporting means of hudraulic lift mainly contains immediate roof lift-type and indirect jacking type.Immediate roof lift-type is simple and compact for structure compared to indirect jacking type, and operational efficiency is high.Current immediate roof lift-type mainly contains middle vertical top type and twin-tub vertical top type.These two kinds of modes are under cabin uneven loading state, and it is comparatively large that oil hydraulic cylinder is subject to lateral force, large to parts depreciations such as elevator guide shoes, is unfavorable for system stable operation.
Summary of the invention
Technical problem: the purpose of this utility model is for problems of the prior art, provides a kind of structure simply compact, energy-conservation, stable, reliability much higher cylinder synchronous power save efficient hydraulic elevating system.
Technological scheme: multi-cylinder synchronous efficient energy-saving hydraulic lifting system of the present utility model, comprises feed circuit, volumetric speed control and energy recovery circuit, hand-operated lifting loop, the dip sensor of synchronously locking loop, being supported in the multiple oil hydraulic cylinder below lift platform and being installed on lift platform; Described feed circuit is connected with the input end of volumetric speed control and energy recovery circuit, the output terminal of described volumetric speed control and energy recovery circuit is connected with synchronous loop input pipeline of locking, volumetric speed control and energy recovery circuit are connected with hand-operated lifting loop with synchronous locking on the connected pipeline in loop, described each oil hydraulic cylinder is all connected with a locking loop, locking loop is connected with flow divider-combiner and electrohydraulic control respectively, forms the synchronous locking loop to multiple oil hydraulic cylinder by locking loop, flow divider-combiner and electrohydraulic control;
The slippage pump that described feed circuit comprises motor, is connected with motor, the entrance of slippage pump is connected with fuel tank pipeline through filter, repairing delivery side of pump is connected with volumetric speed control and energy recovery circuit pipeline through pumping hole one-way valve, and the export pipeline of pumping hole one-way valve is provided with the relief valve communicated with fuel tank;
Described volumetric speed control and energy recovery circuit comprise accumulator, oil inlet and oil return Pilot operated check valve, oil inlet and oil return solenoid directional control valve, safety valve, frequency control motor, oil hydraulic pump, oil hydraulic motor, generator and lifting solenoid directional control valve, described accumulator is connected with the export pipeline of oil inlet and oil return Pilot operated check valve with pumping hole one-way valve, the control port of oil inlet and oil return Pilot operated check valve is connected with the break-make mouth of oil inlet and oil return solenoid directional control valve, the outlet of oil inlet and oil return Pilot operated check valve and the entrance of the empty one-way valve of anti-suction, the inlet port of oil hydraulic pump is connected with the oil outlet of oil hydraulic motor, described frequency control motor and the input shaft of oil hydraulic pump are mechanically connected, described generator and the output shaft of oil hydraulic motor are mechanically connected, the oil outlet of oil hydraulic pump and safety valve, the entrance of lifting solenoid directional control valve is connected, the filler opening of oil hydraulic motor is connected with the outlet of lifting solenoid directional control valve,
Described hand-operated lifting loop comprises the hydraulic hand-pump be connected with the import and export pipeline of lifting solenoid directional control valve, the Manual descending selector valve be connected with hand-hydraulic pump discharge;
Described synchronous locking loop comprises the flow divider-combiner be connected with the import and export pipeline of lifting solenoid directional control valve; The split-flow opening of described flow divider-combiner is connected with the filler opening of electrohydraulic control, and the split-flow opening of flow divider-combiner is connected with the filler opening of electrohydraulic control; The described entrance in locking loop is connected with the split-flow opening of flow divider-combiner, and the outlet in locking loop is connected with the rodless cavity of corresponding oil hydraulic cylinder.
Described oil hydraulic cylinder is two, three, four, six, eight or ten.
Described locking loop comprise locking Pilot operated check valve, the locking solenoid directional control valve be connected with the control port of locking Pilot operated check valve, with lock Pilot operated check valve unblock hand-operated direction valve in parallel.
Beneficial effect: owing to have employed technique scheme, the utility model compared with prior art has the following advantages:
(1) system high efficiency is energy-conservation, realizes energy regenerating: hydraulic lifting system adopts variable frequency volume flow control circuit, realizes up energy-conservation; Hydraulic lifting system adopts generator and accumulator, gravitational potential energy descending for platform is converted to electric energy and hydraulic energy storage, for the energy supplement promoted next time, makes hydraulic system form closed system, achieves the energy-efficient of entire system operation;
(2) multi-cylinder precise synchronization, lift platform offset load resistance is strong: hydraulic lifting system adopts flow divider-combiner coarse synchronization, synchronization error is detected again by the dip sensor on platform, the error of tilt of feedback controls electrohydraulic control through control system, fluid on the in-line of advanced oil hydraulic cylinder is discharged oil sump tank from electrohydraulic control, thus guarantee precise synchronization, the real-time horizontal lifting of implementation platform.Adopt multi-cylinder supporting to promote, improve the offset load resistance of lift platform.
(3) system run all right, reliability is high: hydraulic lifting system adopts volumetric speed control and energy recovery circuit, and system effectiveness is high, and heating value is few, and fluid temperature rise is little, system run all right.System adopts flow divider-combiner to realize oil cylinder coarse synchronization, and electrohydraulic control realizes oil cylinder precise synchronization, and when electro-hydraulic servo defective valve, lift platform still can realize synchronization lifting.System architecture is simple, and the degree of modularity is high, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of the utility model total system;
Fig. 2 is the hydraulic schematic diagram of feed circuit of the present utility model;
Fig. 3 is the hydraulic schematic diagram of volumetric speed control of the present utility model and energy recovery circuit;
Fig. 4 is the hydraulic schematic diagram in hand-operated lifting loop of the present utility model;
Fig. 5 is the hydraulic schematic diagram in the synchronous locking loop of driving of the present utility model three oil hydraulic cylinders;
Fig. 6 is the hydraulic schematic diagram in locking loop of the present utility model.
Fig. 7 is the hydraulic schematic diagram in the synchronous locking loop of driving of the present utility model two oil hydraulic cylinders;
Fig. 8 is the hydraulic schematic diagram in the synchronous locking loop of driving of the present utility model four oil hydraulic cylinders;
Fig. 9 is the hydraulic schematic diagram in the synchronous locking loop of driving of the present utility model six oil hydraulic cylinders;
In figure: 1-feed circuit; 2-volumetric speed control and energy recovery circuit; 3-hand-operated lifting loop; 4-synchronously locks loop; 5-oil hydraulic cylinder; 6-lift platform; 6-1-dip sensor; 1-1-filter; 1-2-motor; 1-3-slippage pump; 1-4-pumping hole one-way valve; 1-5-relief valve; 2-1-accumulator; 2-2-oil inlet and oil return Pilot operated check valve; 2-3-oil inlet and oil return solenoid directional control valve; The empty one-way valve of the anti-suction of 2-4-; 2-5-safety valve; 2-6-frequency control motor; 2-7-oil hydraulic pump; 2-8-oil hydraulic motor; 2-9-generator; 2-10-is elevated solenoid directional control valve; 3-1-hydraulic hand-pump; 3-2-Manual descending selector valve; 4-1-flow divider-combiner; 4-2-electrohydraulic control; 4-3-locks loop; 4-31-locks solenoid directional control valve; 4-32-locks Pilot operated check valve; 4-33-unlocks hand-operated direction valve.
embodiment:
Below in conjunction with the embodiment in accompanying drawing, the utility model will be further described:
Embodiment 1, as shown in Figure 1, multi-cylinder synchronous efficient energy-saving hydraulic lifting system, primarily of feed circuit 1, volumetric speed control and energy recovery circuit 2, hand-operated lifting loop 3, synchronous locking loop 4, is supported in the oil hydraulic cylinder 5 below lift platform 6 and the dip sensor 6-1 be installed on lift platform 6 is formed.Described feed circuit 1 is connected with volumetric speed control and energy recovery circuit 2 by pipeline, volumetric speed control and energy recovery circuit 2, hand-operated lifting loop 3 and synchronous locking loop 4 are connected each other by pipeline, each oil hydraulic cylinder 5 is connected with a locking loop 4-3, locking loop 4-3 is connected with flow divider-combiner 4-1 and electrohydraulic control 4-2 respectively, forms the synchronous locking loop 4 to three oil hydraulic cylinders 5 by locking loop 4-3, flow divider-combiner 4-1 and electrohydraulic control 4-2.Feed circuit 1 function is that system is supplemented and regulated and the deficiency of hydraulic oil in the closed-loop system that causes of system leak owing to synchronously locking loop 4, and reduces the temperature rise of fluid in system; Volumetric speed control and energy recovery circuit 2 play as system provides power, speed to regulate and the function of energy regenerating; Manual lifting platform when hand-operated lifting loop 3 function is system malfunctions; Synchronous locking loop 4 function be adjustment three oil hydraulic cylinder 5 synchronization liftings and platform 6 static time locking cylinder; Dip sensor 6-1 function is the pose of real-time detection platform and feeds back to control centre, realizes closed loop control.
As shown in Figure 5, it is the flow divider-combiner 4-1 of 1:2 by the split ratio that pipeline is connected that the synchronous locking loop 4 of described driving three oil hydraulic cylinders comprises with the import and export P of lifting solenoid directional control valve 2-10, the A mouth of flow divider-combiner 4-1 and the A mouth of electrohydraulic control 4-2 with lock loop 4-3 and be connected, the B mouth of flow divider-combiner 4-1 and the B mouth of electrohydraulic control 4-2 and split ratio are that the P mouth of the flow divider-combiner II of 1:1 is connected, the split-flow opening of flow divider-combiner II is connected with locking loop II respectively at electrohydraulic control II, locking loop 4-3 is connected with the rodless cavity of corresponding oil hydraulic cylinder 5.Wherein, after twice shunting, fluid is divided into three parts of roughly equal turnover locking loop 4-3 of flow and oil hydraulic cylinder 5, and electrohydraulic control is used for the turnover flow regulating each oil cylinder further, realizes high-precise synchronization.As long as can streaming error be corrected because servovalve bleeds off very little flow, therefore can adopt the servovalve of small capacity, reduce the cost of system, improve the fast-response of synchronization regulation.
As shown in Figure 2, described feed circuit 1 comprises the filter 1-1 be connected with fuel tank, and mounting filter 1-1 ensure that and enters the clean of hydraulic system oil liquid, ensures the reliability of system cloud gray model; The inlet port of slippage pump 1-3 is connected by pipeline with filter 1-1, the input shaft of motor 1-2 and slippage pump 1-3 is mechanically connected, the A mouth of pumping hole one-way valve 1-4 is connected by pipeline with the oil outlet of slippage pump 1-3, installs the high pressure oil flow-reversing impingement slippage pump 1-3 that pumping hole one-way valve 1-4 prevents the system of entering; Relief valve 1-5 is connected by pipeline with the B mouth of pumping hole one-way valve 1-4, and regulation relief valve 1-5 controls the pressure entering hydraulic system oil liquid.
As shown in Figure 3, described volumetric speed control and energy recovery circuit 2 comprise the accumulator 2-1 and oil inlet and oil return Pilot operated check valve 2-2 that are connected by pipeline with the B mouth of pumping hole one-way valve 1-4.The hydraulic oil of backflow when described accumulator 2-1 is descending for storage platform, realizes energy regenerating; The control port K of described oil inlet and oil return Pilot operated check valve 2-2 is connected with the P mouth of oil inlet and oil return solenoid directional control valve 2-3, fluid turnover accumulator in hydraulic system in both controls; The A mouth of oil inlet and oil return Pilot operated check valve 2-2 is connected with the oil outlet of oil hydraulic motor 2-8 with the B mouth of the empty one-way valve 2-4 of anti-suction, the inlet port of oil hydraulic pump 2-7, installs the empty one-way valve 2-4 of anti-suction and prevents oil hydraulic pump 2-7 from inhaling sky; The input shaft of frequency control motor 2-6 and oil hydraulic pump 2-7 is mechanically connected, the output shaft of described generator 2-9 and oil hydraulic motor 2-8 is mechanically connected, the oil outlet of oil hydraulic pump 2-7 and safety valve 2-5, the A mouth being elevated solenoid directional control valve 2-10 are connected, and the filler opening of oil hydraulic motor 2-8 is connected with the B mouth of lifting solenoid directional control valve 2-10.Wherein, safety valve 2-5 controls the maximum pressure entering oil hydraulic cylinder fluid, the safety of safeguards system; Lifting solenoid directional control valve 2-10 is for controlling the traffic direction of lift platform;
As shown in Figure 4, described hand-operated lifting loop 3 comprises the hydraulic hand-pump 3-1 and Manual descending selector valve 3-2 that are connected by pipeline with the P mouth of lifting solenoid directional control valve 2-10.Hydraulic hand-pump 3-1 comprises filter, hand pump and one-way valve, and Manual descending selector valve 3-2 is bi-bit bi-pass hand-operated direction valve.
As shown in Figure 6, described locking loop 4-3 comprises locking Pilot operated check valve 4-32, the locking solenoid directional control valve 4-31 be connected with the control port K of locking Pilot operated check valve 4-32, the unblock hand-operated direction valve 4-33 in parallel with locking Pilot operated check valve 4-32.Wherein, when locking Pilot operated check valve 4-32 is static for lift platform, oil hydraulic cylinder 5 is made to lock pressurize; Locking solenoid directional control valve 4-31 is used for unlocking locking Pilot operated check valve 4-32 when platform is descending; Unlock hand-operated direction valve 4-33 for unlocking locking Pilot operated check valve 4-32 before Manual descending platform during system jam.
Embodiment 2, substantially the same manner as Example 1, exist together mutually slightly, difference is the synchronous locking loop of driving two oil hydraulic cylinders 5.As shown in Figure 7, drive the synchronous locking loop 4 of three oil hydraulic cylinders to comprise with the import and export P of lifting solenoid directional control valve 2-10 by the split ratio that pipeline is connected to be the flow divider-combiner 4-1 of 1:1, the split-flow opening of flow divider-combiner 4-1 respectively with electrohydraulic control 4-2 with lock loop 4-3 and be connected, locking loop 4-3 is connected with the rodless cavity of corresponding oil hydraulic cylinder 5.Wherein, after the flow divider-combiner 4-1 that split ratio is 1:1, fluid is divided into two parts of roughly equal turnover locking loop 4-3 of flow and oil hydraulic cylinder 5, and electrohydraulic control is used for the turnover flow regulating each oil cylinder further, realizes high-precise synchronization.
Embodiment 3, substantially the same manner as Example 1, exist together mutually slightly, difference is the synchronous locking loop of driving four oil hydraulic cylinders.As shown in Figure 8, drive the synchronous locking loop 4 of four oil hydraulic cylinders to comprise with the import and export P of lifting solenoid directional control valve 2-10 by the split ratio that pipeline is connected to be the flow divider-combiner 4-1 of 1:1, the flow divider-combiner II that the shunting outlet of flow divider-combiner 4-1 is 1:1 with electrohydraulic control 4-2 and two split ratios is respectively connected, the split-flow opening of flow divider-combiner II respectively with electrohydraulic control II with lock loop 4-3 and be connected.Locking loop 4-3 is connected with the rodless cavity of corresponding oil hydraulic cylinder 5.Wherein, after twice shunting, fluid is divided into four parts of roughly equal turnover locking loop 4-3 of flow and oil hydraulic cylinder 5, and electrohydraulic control is used for the turnover flow regulating each oil cylinder further, realizes high-precise synchronization.
Embodiment 4, substantially the same manner as Example 1, exist together mutually slightly, difference is the synchronous locking loop of driving six oil hydraulic cylinders.As shown in Figure 9, drive the synchronous locking loop 4 of six oil hydraulic cylinders to comprise with the import and export P of lifting solenoid directional control valve 2-10 by the split ratio that pipeline is connected to be the flow divider-combiner 4-1 of 1:1, the flow divider-combiner II that the shunting outlet of flow divider-combiner 4-1 is 1:2 with electrohydraulic control 4-2 and two split ratios is respectively connected, the A mouth of flow divider-combiner II and the A mouth of electrohydraulic control II with lock loop 4-3 and be connected, the B mouth of flow divider-combiner II and the B mouth of electrohydraulic control II and split ratio are that the P mouth of the flow divider-combiner III of 1:1 is connected, the split-flow opening of flow divider-combiner III is connected with locking loop II respectively at electrohydraulic control III.Locking loop 4-3 is connected with the rodless cavity of corresponding oil hydraulic cylinder 5.Wherein, after shunting, fluid is divided into six parts of roughly equal turnover locking loop 4-3 of flow and oil hydraulic cylinder 5, and electrohydraulic control is used for the turnover flow regulating each oil cylinder further, realizes high-precise synchronization.
Claims (3)
1. a multi-cylinder synchronous efficient energy-saving hydraulic lifting system, is characterized in that: it comprise feed circuit (1), volumetric speed control and energy recovery circuit (2), hand-operated lifting loop (3), synchronously lock loop (4), multiple oil hydraulic cylinders (5) of being supported in lift platform (6) below and the dip sensor (6-1) be installed on lift platform (6), described feed circuit (1) is connected with the input end of volumetric speed control and energy recovery circuit (2), the output terminal of described volumetric speed control and energy recovery circuit (2) with synchronously lock loop (4) input end pipeline and be connected, volumetric speed control and energy recovery circuit (2) are connected with hand-operated lifting loop (3) with synchronously locking on pipeline that loop (4) is connected, described each oil hydraulic cylinder (5) is all connected with locking loop (4-3), locking loop (4-3) is connected with flow divider-combiner (4-1) and electrohydraulic control (4-2) respectively, by locking loop (4-3), flow divider-combiner (4-1) and electrohydraulic control (4-2) form the synchronous locking loop (4) to multiple oil hydraulic cylinder (5),
The slippage pump (1-3) that described feed circuit (1) comprises motor (1-2), is connected with motor (1-2), the entrance of slippage pump (1-3) is connected with fuel tank pipeline through filter (1-1), the outlet (A) of slippage pump (1-3) is connected with volumetric speed control and energy recovery circuit (2) pipeline through pumping hole one-way valve (1-4), and outlet (B) pipeline of pumping hole one-way valve (1-4) is provided with the relief valve (1-5) communicated with fuel tank;
Described volumetric speed control and energy recovery circuit (2) comprise accumulator (2-1), oil inlet and oil return Pilot operated check valve (2-2), oil inlet and oil return solenoid directional control valve (2-3), safety valve (2-5), frequency control motor (2-6), oil hydraulic pump (2-7), oil hydraulic motor (2-8), generator (2-9) and lifting solenoid directional control valve (2-10), described accumulator (2-1) is connected with outlet (B) pipeline of pumping hole one-way valve (1-4) with oil inlet and oil return Pilot operated check valve (2-2), the control port (K) of oil inlet and oil return Pilot operated check valve (2-2) is connected with the break-make mouth (P) of oil inlet and oil return solenoid directional control valve (2-3), the outlet (A) of oil inlet and oil return Pilot operated check valve (2-2) and the entrance (B) of the empty one-way valve of anti-suction (2-4), the inlet port of oil hydraulic pump (2-7) is connected with the oil outlet of oil hydraulic motor (2-8), described frequency control motor (2-6) is mechanically connected with the input shaft of oil hydraulic pump (2-7), described generator (2-9) is mechanically connected with the output shaft of oil hydraulic motor (2-8), the oil outlet of oil hydraulic pump (2-7) and safety valve (2-5), the entrance (A) of lifting solenoid directional control valve (2-10) is connected, the filler opening of oil hydraulic motor (2-8) is connected with the outlet (B) of lifting solenoid directional control valve (2-10),
Described hand-operated lifting loop (3) comprise with lifting solenoid directional control valve (2-10) import and export (P) pipeline be connected hydraulic hand-pump (3-1), export with hydraulic hand-pump (3-1) the Manual descending selector valve (3-2) be connected;
Described synchronous locking loop (4) comprises the flow divider-combiner (4-1) be connected with import and export (P) pipeline of lifting solenoid directional control valve (2-10); The split-flow opening (A) of described flow divider-combiner (4-1) is connected with the filler opening (A) of electrohydraulic control (4-2), and the split-flow opening (B) of flow divider-combiner (4-1) is connected with the filler opening (B) of electrohydraulic control (4-2); The entrance of described locking loop (4-3) is connected with the split-flow opening of flow divider-combiner (4-1), and the outlet of locking loop (4-3) is connected with the rodless cavity of corresponding oil hydraulic cylinder (5).
2. multi-cylinder synchronous efficient energy-saving hydraulic lifting system according to claim 1, is characterized in that: described oil hydraulic cylinder (5) is two, three, four, six, eight or ten.
3. multi-cylinder synchronous efficient energy-saving hydraulic lifting system according to claim 1, is characterized in that: described locking loop (4-3) comprise locking Pilot operated check valve (4-32), the locking solenoid directional control valve (4-31) be connected with the control port (K) of locking Pilot operated check valve (4-32), with lock Pilot operated check valve (4-32) unblock hand-operated direction valve (4-33) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520837395.0U CN205136183U (en) | 2015-10-27 | 2015-10-27 | Energy -conserving high -efficient hydraulic lifting system of multi -cylinder synchronization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520837395.0U CN205136183U (en) | 2015-10-27 | 2015-10-27 | Energy -conserving high -efficient hydraulic lifting system of multi -cylinder synchronization |
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| CN205136183U true CN205136183U (en) | 2016-04-06 |
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|---|---|---|---|
| CN201520837395.0U Withdrawn - After Issue CN205136183U (en) | 2015-10-27 | 2015-10-27 | Energy -conserving high -efficient hydraulic lifting system of multi -cylinder synchronization |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179343A (en) * | 2015-10-27 | 2015-12-23 | 中国矿业大学 | Multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method |
| WO2019007208A1 (en) * | 2017-07-05 | 2019-01-10 | 江苏常发农业装备股份有限公司 | Lifter control device |
| CN113586558A (en) * | 2021-07-29 | 2021-11-02 | 厦门安科科技有限公司 | Control method and control device for synchronous movement of jacking platform |
| RU221905U1 (en) * | 2022-07-15 | 2023-11-29 | Общество с ограниченной ответственностью "ТАЙТЭН ПАУЭР СОЛЮШН" | DEVICE FOR PROVIDING UNINTERRUPTED POWER FOR ELEVATOR EQUIPMENT |
-
2015
- 2015-10-27 CN CN201520837395.0U patent/CN205136183U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179343A (en) * | 2015-10-27 | 2015-12-23 | 中国矿业大学 | Multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method |
| WO2017071027A1 (en) * | 2015-10-27 | 2017-05-04 | 中国矿业大学 | Multi-cylinder synchronized, power-saving, high-efficiency hydraulic lifting/lowering system and method |
| WO2019007208A1 (en) * | 2017-07-05 | 2019-01-10 | 江苏常发农业装备股份有限公司 | Lifter control device |
| CN113586558A (en) * | 2021-07-29 | 2021-11-02 | 厦门安科科技有限公司 | Control method and control device for synchronous movement of jacking platform |
| CN113586558B (en) * | 2021-07-29 | 2023-12-19 | 厦门安科科技有限公司 | Control method and control device for synchronous movement of jacking platform |
| RU221905U1 (en) * | 2022-07-15 | 2023-11-29 | Общество с ограниченной ответственностью "ТАЙТЭН ПАУЭР СОЛЮШН" | DEVICE FOR PROVIDING UNINTERRUPTED POWER FOR ELEVATOR EQUIPMENT |
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