CN1323956A - Power-saving energy-accumulating hydraulic power system - Google Patents
Power-saving energy-accumulating hydraulic power system Download PDFInfo
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- CN1323956A CN1323956A CN 01127928 CN01127928A CN1323956A CN 1323956 A CN1323956 A CN 1323956A CN 01127928 CN01127928 CN 01127928 CN 01127928 A CN01127928 A CN 01127928A CN 1323956 A CN1323956 A CN 1323956A
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Abstract
An energy saving and accumulating type of hydraulic power system includes accumulator, pressure relay, pressure meter, stop valve, shuttle valve, oil pump, motor, liquid control change valve, over flow valve, manual pump, and liquid control oneway valve. It connects as to connect one end of overflow valve to oil box as well as one end of manual pump, shuttle valve, accumulator and outlet of liquid control change valve, an other end to an other outlet of liquid control change valve as well as an other end of manual pump; to connect two inlets of liquid control change valve with oil pump outlet and inlet, two ends of liquid control oneway valve, two ends of shuttle valve separately in parallel as well as to connect two ends of hydraulic power unit for making direct passing through between the accumulator and pressure oil cavity, oil suction entrance of oil pump and the oil box, oil pressure entrance and overflow valve thus to decrease the energy lost.
Description
A kind of power-saving energy-accumulating hydraulic power system that hydraulic pressure execution device is provided power and control.
Hydraulic pressure installation is the power plant that multiple industrial class is widely used.During hydraulic pressure execution device work, need provide hydraulic power by hydraulic power system.
In the past hydraulic power system Placement such as documents accompanying drawing show that its working method is as follows:
Motor 3 forward rotation drive oil pump 1 by coupling 2 and rotate, the inlet port of oil pump passes through one-way valve 5.1 from the fuel tank oil suction, the pressure oil that oil pump is discharged arrives the A point through one-way valve 5.3PA point, 13.1, enters the cavity of resorption of hydraulic actuator 6, promotes the piston stroking upward of hydraulic actuator.After the oil of hydraulic actuator 6 epicoeles is discharged, through B point, Pilot operated check valve 12.2, and the T point flow back to fuel tank.The unlatching of Pilot operated check valve 12.2 is to be controlled by the pressure oil of PA to open.Oil pump also holds oil to accumulator 11 in the time of hydraulic actuator 6 cavity of resorption fuel feeding, the pressure of accumulator is shown by pressure gauge 8, when pressure reached the setting value of pressure relay 9, moving the doing of pressure relay 9 were sent electrical signal, controlled Oil pump electrical machinery and quit work and send cue to the operator.After oil pump quit work, the pressure of hydraulic actuator 6 cavity of resorptions was kept by accumulator 11.
When motor 3 backward rotation, oil pump passes through one-way valve 5.2 from the fuel tank oil suction, the pressure oil that oil pump is discharged arrives the B point through one-way valve 13.2, enter the epicoele of hydraulic actuator 6, promote the descent of piston of hydraulic actuator 6, after the oil of hydraulic actuator 6 cavity of resorptions is discharged through A point, Pilot operated check valve 12.1, and the T point flow back to fuel tank.The unlatching of Pilot operated check valve 12.1 is to be controlled by the pressure oil that PB is ordered to open.The pressure oil of accumulator 11 storages simultaneously also flows back to fuel tank via 12.1.Relief valve 4.1 and 4.2 pairs 6 cavity of resorption and the pressure of epicoele play the safety protection effect.
When oil pump 1 can't be worked owing to motor 3 has a power failure, hand oil pump 10 can be to the cavity of resorption fuel feeding of hydraulic actuator 6, and the pressure oil of one-way valve 5.3 protection hand oil pumps 10 does not flow to oil pump.
Hydraulic power system shortcoming before above-mentioned is:
1, accumulator 11, pressure gauge 8 can not be carried out hydraulic pressure with pressure relay 9
The epicoele of device 6 works.
2, when the cavity of resorption oil extraction of hydraulic actuator 6, accumulator 11 also oil extraction is made
Become energy loss.
3, hand pump 10 can only be carried out 6 cavity of resorption fuel feeding to hydraulic pressure.
4, element is many.
The objective of the invention is to make its quantity that not only can reduce element by a kind of design of simplified system, and working procedure is reasonable, smooth and easy, more can have the characteristics of energy-conservation impairment.
The present invention is by accumulator, pressure relay, pressure gauge, stop valve, shuttle valve, oil pump, motor, pilot operated directional control valve, relief valve, hand pump, Pilot operated check valve is formed, relief valve one end communicates with fuel tank, while and hand pump one end, accumulator one end, shuttle valve one end and liquid controlled reversing valve outlet port join, another outlet of the other end and pilot operated directional control valve is joined, join with the hand pump the other end simultaneously, two inlets of pilot operated directional control valve are imported and exported with oil pump respectively, and the two ends of Pilot operated check valve and the two ends of shuttle valve also connect, connect the two ends of hydraulic power unit simultaneously respectively, accumulator and hand pump are serially connected with stop valve between the relief valve, be connected to pressure relay and pressure gauge between accumulator and the stop valve, join with the shuttle valve control point simultaneously, all connect oil pipe and are high pressure resistant pipe.
Fig. 1 is a system of the present invention connection diagram, also is specification digest figure, and Fig. 2 is the pilot operated directional control valve structural representation, and Fig. 3 is the shuttle valve structural representation.Each label is respectively among the figure: 1, hydraulic actuator, 2, accumulator, 3, pressure relay, 4, pressure gauge, 5, shuttle valve, 6, oil pump, 7, motor, 8, pilot operated directional control valve, 9, relief valve, 10, fuel tank, 11, hand pump, 12, Pilot operated check valve, 13, stop valve, A, the B tubing interface, C, D, E, F, G, H, I, M, N, O, L, U is a contact, 14, valve body, 15, oil pocket, 16, passage, 17, spool, 18, oil pocket, 19, passage, 20, oil pocket, 21,22,23, oil duct, 24, valve body, 25, oil duct, 26, oil duct, 27, spool, 28, oil duct, 29,31, axle, 30,32,33,34, oil duct, 35, oil pocket.
The course of work of the present invention is as follows:
When motor has a power failure, available hand pump is to the oil circuit fuel feeding, when needs during to left side oil circuit fuel feeding, manually promote pilot operated directional control valve left side button, spool is moved to right, L and M are communicated, N and O communicate, and behind the manual reverse of direction, the working position of spool is kept by control oil, when needs during, manually promote pilot operated directional control valve the right button to the right oil circuit fuel feeding.
When needs move repairing to system, open stop valve, pressure oil flows back to fuel tank.
Advantage of the present invention is as follows:
1, accumulator always communicates with pressure oil cavity, and energy loss all can pressurize be reduced in two chambeies.
2, the inlet port of oil pump always communicates with fuel tank, makes oil circuit work smooth and easy rationally.
3, the pressure hydraulic fluid port of oil pump always communicates with relief valve, can fully guarantee system works safety.
Another kind of scheme of the present invention is that the relief valve in the accompanying drawing is changed to unloading valve.When using unloading valve, the control oil pipe of unloading valve is connected on the stop valve front end.
Now in conjunction with the accompanying drawings the utility model is described further.
Embodiment: accumulator 2 is the NQX-1.6/200 type, pressure relay 3 is the HED type, pressure gauge is the Y-100 type, shuttle valve is a non-standard equipment, its structure such as Fig. 3 show, oil pocket is three, with passage 16,19 are chained together, spool 17 is the shuttle valve of two ends band tapering, be arranged in the middle oil pocket 18, it is external that each oil pocket respectively has an oil duct to lead to, Pilot operated check valve 12 is the SL10 type, oil pump 6 is the 2-5mcY type, pilot operated directional control valve 8 is a non-standard equipment, its structure such as accompanying drawing 2 show, oil pocket is 5 oil-in chamber, connect with passage between the oil-in chamber, spool 27 is established 6 ring platforms with oil pocket internal channel internal diameter Spielpassung for how desk-top major axis is, and valve 27 is arranged in the oil pocket 35, the oil-in chamber of both sides connects by oil duct 26, the oil-in chamber of two inboards is respectively by oil duct 25,28 connect with the oil pocket two ends, and four oil-in chamber of a side are respectively by oil duct 30,32,33,34 lead to externally, and relief valve 9 is the DBD type, hand pump 11 is common hydraulic handle formula hand pump, stop valve is the high-pressure ball valve of 10mm latus rectum, and all connect oil pipe, is the high pressure resistant pipe of 10mm diameter.
Claims (1)
- A kind of power-saving energy-accumulating hydraulic power system that hydraulic pressure execution device is provided power and control, by accumulator, pressure relay, pressure gauge, stop valve, shuttle cuts down, oil pump, motor, pilot operated directional control valve, relief valve, hand pump, Pilot operated check valve is formed, and relief valve one end communicates with fuel tank, simultaneously with hand pump one end, accumulator one end, shuttle valve one end and liquid controlled reversing valve outlet port join, and another outlet of the other end and pilot operated directional control valve is joined, and join with the hand pump the other end simultaneously, two inlets of pilot operated directional control valve are imported and exported with oil pump respectively, the two ends of Pilot operated check valve and the two ends of shuttle valve also connect, and connect the two ends of hydraulic power unit simultaneously respectively, accumulator and hand pump, be serially connected with stop valve between the relief valve, be connected to pressure relay and pressure gauge between accumulator and the stop valve, join with the shuttle valve control point simultaneously, all connect oil pipe and are high pressure resistant pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01127928 CN1112521C (en) | 2001-07-13 | 2001-07-13 | Power-saving energy-accumulating hydraulic power system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01127928 CN1112521C (en) | 2001-07-13 | 2001-07-13 | Power-saving energy-accumulating hydraulic power system |
Publications (2)
Publication Number | Publication Date |
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CN1323956A true CN1323956A (en) | 2001-11-28 |
CN1112521C CN1112521C (en) | 2003-06-25 |
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Application Number | Title | Priority Date | Filing Date |
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CN 01127928 Expired - Fee Related CN1112521C (en) | 2001-07-13 | 2001-07-13 | Power-saving energy-accumulating hydraulic power system |
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CN (1) | CN1112521C (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006081744A1 (en) * | 2005-02-06 | 2006-08-10 | Yangdong He | A hydraulic auxiliary system with an accumulator increasing flow for a concrete pump |
CN100577400C (en) * | 2008-07-01 | 2010-01-06 | 南通市南方润滑液压设备有限公司 | Controllable type rolling machine hydraulic system |
CN102003421A (en) * | 2010-12-03 | 2011-04-06 | 泰兴市同济工程机械厂 | Efficient and energy-saving device for hydraulic station |
CN102536933A (en) * | 2012-02-06 | 2012-07-04 | 三一重工股份有限公司 | Hydraulic pumping system and concrete-pumping equipment comprising same |
CN103307059A (en) * | 2013-06-03 | 2013-09-18 | 天津优瑞纳斯液压机械有限公司 | Hydraulic actuator |
CN103982472A (en) * | 2014-05-28 | 2014-08-13 | 青岛大学 | Loading isolation type oil liquid integration power system |
CN105443462A (en) * | 2014-08-12 | 2016-03-30 | 安钛医疗设备股份有限公司 | Two-way output hybrid hydraulic power system |
-
2001
- 2001-07-13 CN CN 01127928 patent/CN1112521C/en not_active Expired - Fee Related
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006081744A1 (en) * | 2005-02-06 | 2006-08-10 | Yangdong He | A hydraulic auxiliary system with an accumulator increasing flow for a concrete pump |
CN100577400C (en) * | 2008-07-01 | 2010-01-06 | 南通市南方润滑液压设备有限公司 | Controllable type rolling machine hydraulic system |
CN102003421A (en) * | 2010-12-03 | 2011-04-06 | 泰兴市同济工程机械厂 | Efficient and energy-saving device for hydraulic station |
CN102003421B (en) * | 2010-12-03 | 2013-02-13 | 泰兴市同济工程机械厂 | Efficient and energy-saving device for hydraulic station |
CN102536933A (en) * | 2012-02-06 | 2012-07-04 | 三一重工股份有限公司 | Hydraulic pumping system and concrete-pumping equipment comprising same |
CN102536933B (en) * | 2012-02-06 | 2015-05-20 | 三一重工股份有限公司 | Hydraulic pumping system and concrete-pumping equipment comprising same |
CN103307059A (en) * | 2013-06-03 | 2013-09-18 | 天津优瑞纳斯液压机械有限公司 | Hydraulic actuator |
CN103307059B (en) * | 2013-06-03 | 2016-07-13 | 天津优瑞纳斯液压机械有限公司 | Hydraulic actuator |
CN103982472A (en) * | 2014-05-28 | 2014-08-13 | 青岛大学 | Loading isolation type oil liquid integration power system |
CN103982472B (en) * | 2014-05-28 | 2016-01-27 | 青岛大学 | A kind of load isolation formula fluid integrated power system |
CN105443462A (en) * | 2014-08-12 | 2016-03-30 | 安钛医疗设备股份有限公司 | Two-way output hybrid hydraulic power system |
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Publication number | Publication date |
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CN1112521C (en) | 2003-06-25 |
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