CN105275895A - Hydraulic driving system achieving pressure adjustment - Google Patents
Hydraulic driving system achieving pressure adjustment Download PDFInfo
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- CN105275895A CN105275895A CN201510830654.1A CN201510830654A CN105275895A CN 105275895 A CN105275895 A CN 105275895A CN 201510830654 A CN201510830654 A CN 201510830654A CN 105275895 A CN105275895 A CN 105275895A
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Abstract
The invention discloses a hydraulic driving system achieving pressure adjustment. The hydraulic driving system comprises an oil tank, four jacking oil cylinders, four supporting oil cylinders and four sets of jacking and supporting hydraulic subsystems. Each jacking and supporting hydraulic subsystem comprises a double pump driven by an adjustable-speed motor, a two-position three-way solenoid valve, a proportional overflow valve, a first electromagnetic reversing valve, a second electromagnetic reversing valve, a first stop valve, a second stop valve, a third stop valve and an energy accumulator. Oil inlets of the double pumps are connected to the oil tank, oil outlets of main oil pump bodies of the double pumps are connected to first oil openings of the two-position three-way solenoid valves, and second oil openings of the two-position three-way solenoid valves are connected with oil inlets of the first check valves. Oversized heavy equipment can be stably lifted to the platform face from the ground, and the beneficial effect of being adjustable in hydraulic oil pressure is achieved.
Description
Technical field
The present invention relates to a kind of hydraulic equipment, particularly relate to a kind of hydraulic driving system of pressure adjustable.
Background technique
In impeller dynamic test, one of them important test event is placed in super sized type water tank by guide plate to test.This superhuge water tank, wide 3 meters, long 6 meters, weigh 132 tons when storing full water.In test process, water tank can require to fall after rise to ground in the flat surface from surface uplift to 3.2m and from flat surface, and be very difficult thing on water tank large and heavy for this span is from surface uplift to plane, and require in the process promoted, water tank has not allowed skew, otherwise water tank will be blocked by track, cannot lifting be continued, even can cause the damage of water tank.
Afterwards, someone expected utilizing screw body to promote the lifting of this super large jumbo.Although utilize screw body to carry out lifting have the high advantage of precision, super large jumbo can be avoided not offset in lifting process, but the power that screw body can provide is limited, the power needed for lifting super large jumbo can not be reached, therefore, finally utilize screw body to carry out this super large jumbo of lifting still cannot realize.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of hydraulic driving system of pressure adjustable, promoting super large jumbo by the mode of hydraulic pressure, to overcome the deficiency that prior art exists.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A hydraulic driving system for pressure adjustable, is characterized in that:
Comprise fuel tank, four jacking cylinders, four support cylinders and four groups of jackings and support hydraulic pressure subtense angle;
Often organize in jacking and support hydraulic pressure subtense angle and include the duplex pump, two-bit triplet solenoid valve, proportional pressure control valve, the first solenoid directional control valve, the second solenoid directional control valve, the first stop valve, the second stop valve, the 3rd stop valve, the accumulator that are driven by speed-adjustable motor;
The filler opening of described duplex pump is connected to described fuel tank, and the oil outlet of the main oil pump of described duplex pump is connected to the first hydraulic fluid port of described two-bit triplet solenoid valve, and the second hydraulic fluid port of described two-bit triplet solenoid valve connects the filler opening of the first one-way valve;
The oil outlet of the auxiliary oil pump of described duplex pump is directly connected to the filler opening of described first one-way valve, and the oil outlet of described first one-way valve is connected respectively to the filler opening of described proportional pressure control valve, the first hydraulic fluid port of described first solenoid directional control valve, the first hydraulic fluid port of described second solenoid directional control valve;
Second hydraulic fluid port of described first solenoid directional control valve is connected respectively to the reverse hydraulic fluid port of jacking cylinder and the filler opening of described first stop valve, and the 3rd hydraulic fluid port of described first solenoid directional control valve is connected respectively to the forward hydraulic fluid port of described jacking cylinder and the filler opening of described second stop valve;
Second hydraulic fluid port of described second solenoid directional control valve is connected to the reverse hydraulic fluid port of support cylinder, and the 3rd hydraulic fluid port of described second solenoid directional control valve is connected respectively to the forward hydraulic fluid port of support cylinder and described 3rd stop valve is connected to accumulator;
3rd hydraulic fluid port, the oil outlet of described proportional pressure control valve, the 4th hydraulic fluid port of described first solenoid directional control valve, the 4th hydraulic fluid port of described second solenoid directional control valve, the oil outlet of described first stop valve of the described two-bit triplet solenoid valve in jacking described in four groups and support hydraulic pressure subtense angle, the oil outlet of described second stop valve all connects back described fuel tank by return line.
In the present invention, the oil outlet of described first one-way valve is connected with the first charge oil pressure sensor.Described jacking cylinder has jacking cylinder displacement transducer; Described support cylinder have support cylinder displacement transducer and support cylinder gravity sensor.In the present invention, described return line is connected to cooler and filter in the location strings close to fuel tank.
Described fuel tank has level meter, liquid level relay, air filter and temperature transducer.
The 4th stop valve is also connected with between described fuel tank and the return line entering before described cooler.
In the present invention, passing ratio relief valve can adjust the pressure of the hydraulic oil of the system of entering.Therefore, adopt technique scheme, present invention achieves and reposefully super large jumbo is lifted to flat surface reposefully from ground, and there is the adjustable advantage of hydraulic fluid pressure.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail:
Fig. 1 is hydraulic schematic of the present invention.
Embodiment
As shown in Figure 1, the hydraulic driving system of pressure adjustable of the present invention, comprises 21, the four groups of jackings of fuel tank 1, four jacking cylinders 20, four support cylinders and support hydraulic pressure subtense angle 201,202,203,204.Four jacking cylinders 20 are arranged on four angles place of super large jumbo for jacking super large jumbo; Four support cylinders 21 are placed in flat surface, for supporting super large jumbo after super large jumbo is by jacking to flat surface.
Often organize in jacking and support hydraulic pressure subtense angle and include the duplex pump 8, two-bit triplet solenoid valve 32, proportional pressure control valve 12, first solenoid directional control valve 161, second solenoid directional control valve 162, first stop valve 311, second stop valve 312, the 3rd stop valve 313, first equilibrium valve 291, second equilibrium valve 292, the 3rd equilibrium valve 293, the 4th equilibrium valve 294 that are driven by speed-adjustable motor 7, accumulator 26.
Wherein, the filler opening of duplex pump 8 is connected to fuel tank 1 through the first ball valve 151, and the oil outlet of the main oil pump of duplex pump 8 is connected to the first hydraulic fluid port of two-bit triplet solenoid valve 32, and the second hydraulic fluid port of two-bit triplet solenoid valve 32 connects the filler opening of the first one-way valve 111.
The oil outlet of the auxiliary oil pump of duplex pump 8 is directly connected to the filler opening of the first one-way valve 111, and the oil outlet of the first one-way valve 111 is connected respectively to the filler opening of proportional pressure control valve 12, the first hydraulic fluid port of the first solenoid directional control valve 161, the first hydraulic fluid port of the second solenoid directional control valve 162.
The oil outlet of the first one-way valve 111 is also connected with the first charge oil pressure sensor 141 and pressure gauge 17.
Second hydraulic fluid port of the first solenoid directional control valve 161 is connected to the reverse hydraulic fluid port of jacking cylinder through the first equilibrium valve 291, the 3rd hydraulic fluid port of the first solenoid directional control valve 161 is connected to the forward hydraulic fluid port of jacking cylinder through the second equilibrium valve 292.First equilibrium valve 291 is also connected to the filler opening of the first stop valve 311.Second equilibrium valve 292 is also connected to the filler opening of the second stop valve 312.Jacking cylinder 20 has jacking displacement transducer 301.The oil outlet of the first equilibrium valve 291 and the oil outlet of the second equilibrium valve 292 are also connected to jacking first pressure transducer 142 and jacking second pressure transducer 143.
Second hydraulic fluid port of the second solenoid directional control valve 162 is connected to the reverse hydraulic fluid port of support cylinder 21 through the 3rd equilibrium valve 293, the 3rd hydraulic fluid port of the second solenoid directional control valve 162 is connected to the forward hydraulic fluid port of support cylinder 21 through the 4th equilibrium valve 294.4th equilibrium valve 294 is also connected to accumulator 26 by the 3rd stop valve 313.Support cylinder 21 have bracing displacement sensor 302 and gravity sensor 303.The oil outlet of the 3rd equilibrium valve 293 and the oil outlet of the 4th equilibrium valve are also connected to support first pressure transducer 144 and support the second pressure transducer 145.
3rd hydraulic fluid port, the oil outlet of proportional pressure control valve 12, the 4th hydraulic fluid port of the first solenoid directional control valve 161, the 4th hydraulic fluid port of the second solenoid directional control valve 162, the oil outlet of the first stop valve 311 of the two-bit triplet solenoid valve 32 in four groups of jackings and support hydraulic pressure subtense angle 201,202,203,204, the oil outlet of the second stop valve 312 all connects oil sump tank 1 by return line.
In the present invention, the solenoid valve of duplex pump 8 must not be electric, only main oil pump work; Solenoid valve obtains electric, and main oil pump and auxiliary oil pump work simultaneously.
The working method of jacking and support hydraulic pressure subtense angle is: speed-adjustable motor 7 drives duplex pump 8 to work, when the first hydraulic fluid port of two-bit triplet solenoid valve 31 is communicated with the second hydraulic fluid port, the main oil pump of duplex pump 8 and auxiliary oil pump pass through the first one-way valve 111 to jacking and support hydraulic pressure subtense angle fuel feeding simultaneously, when the first hydraulic fluid port and the cut-off of the second hydraulic fluid port of two-bit triplet solenoid valve 31, when first hydraulic fluid port is communicated with the 3rd hydraulic fluid port, only the auxiliary oil pump of duplex pump 8 passes through the first one-way valve 111 to jacking and support hydraulic pressure subtense angle fuel feeding, the main oil pump of duplex pump 8 then flows back to fuel tank 1 through the first hydraulic fluid port of two-bit triplet solenoid valve 31 and the 3rd hydraulic fluid port.
Proportional pressure control valve 12 is for realizing changing the pressure of the hydraulic oil entering jacking and support hydraulic pressure subtense angle.
When the first solenoid directional control valve 161 is when connecting, for driving jacking cylinder 20 to work, at this moment the second electromagnetic switch solenoid valve 162 ends, and support cylinder 21 does not work.When the second electromagnetic switch solenoid valve 162 is when connecting, for driving support cylinder 21 to work, at this moment the first solenoid directional control valve 161 ends, and jacking cylinder 20 does not work.
First solenoid directional control valve 161 has two kinds of getting types: when the first hydraulic fluid port of the first solenoid directional control valve 161 is communicated with the second hydraulic fluid port, when 3rd hydraulic fluid port is communicated with the 4th hydraulic fluid port, hydraulic oil then enters from the reverse hydraulic fluid port of jacking cylinder 20, drives jacking cylinder 20 to shorten, for the water tank 1100 that lands.When the first hydraulic fluid port of the first solenoid directional control valve 161 is communicated with the 3rd hydraulic fluid port, when the second hydraulic fluid port is communicated with the 4th hydraulic fluid port, hydraulic oil then enters from the forward hydraulic fluid port of jacking cylinder 20, drives jacking cylinder 20 to extend, for by water tank jack-up.
Second solenoid directional control valve 162 also has two kinds of getting types: when the first hydraulic fluid port of the first solenoid directional control valve 162 is communicated with the second hydraulic fluid port, when 3rd hydraulic fluid port is communicated with the 4th hydraulic fluid port, hydraulic oil then enters from the reverse hydraulic fluid port of support cylinder 21, drives support cylinder 21 to shorten, for being separated with water tank.When the first hydraulic fluid port of the first solenoid directional control valve 162 is communicated with the 3rd hydraulic fluid port, when the second hydraulic fluid port is communicated with the 4th hydraulic fluid port, hydraulic oil then enters from the forward hydraulic fluid port of support cylinder 21, drives support cylinder 21 to extend, for supporting water tank.
3rd stop valve 313 is in cut-off state usually, after support cylinder 21 supports water tank, the 3rd stop valve 313 is opened connection, makes to utilize accumulator 26 pairs of support cylinders 21 to carry out pressurize.
First stop valve 311 and the second stop valve 312 are also in cut-off state usually, when support cylinder 21 carries out work, because jacking cylinder 20 also will do accompany movement, at this moment because the first solenoid directional control valve 161 is in cut-off state, emptying phenomenon is there is for avoiding jacking cylinder 20, need to open the first stop valve 311 and the second stop valve 312 for this reason, jacking cylinder 20 is communicated with fuel tank 1, avoids emptying phenomenon.
Return line is connected to cooler 23 and filter 24 close to the location strings of fuel tank 1.
Fuel tank 1 has level meter 3, liquid level relay 4, air filter 5 and temperature transducer 6.
In addition, the 4th stop valve 314 is also connected with between the oil outlet of the second ball valve 152 and the return line entering before cooler 23.4th stop valve 314 ends usually, synchronously opens, jacking cylinder 20 is communicated with fuel tank 1 when the first stop valve 311, second stop valve 312 is opened, and avoids occurring above-mentioned emptying phenomenon.
Can be found out by foregoing detailed description, present invention achieves and reposefully super large jumbo is lifted to flat surface reposefully from ground, and there is the adjustable advantage of hydraulic fluid pressure.
Claims (6)
1. a hydraulic driving system for pressure adjustable, is characterized in that:
Comprise fuel tank, four jacking cylinders, four support cylinders and four groups of jackings and support hydraulic pressure subtense angle;
Often organize in jacking and support hydraulic pressure subtense angle and include the duplex pump, two-bit triplet solenoid valve, proportional pressure control valve, the first solenoid directional control valve, the second solenoid directional control valve, the first stop valve, the second stop valve, the 3rd stop valve, the accumulator that are driven by speed-adjustable motor;
The filler opening of described duplex pump is connected to described fuel tank, and the oil outlet of the main oil pump of described duplex pump is connected to the first hydraulic fluid port of described two-bit triplet solenoid valve, and the second hydraulic fluid port of described two-bit triplet solenoid valve connects the filler opening of the first one-way valve;
The oil outlet of the auxiliary oil pump of described duplex pump is directly connected to the filler opening of described first one-way valve, and the oil outlet of described first one-way valve is connected respectively to the filler opening of described proportional pressure control valve, the first hydraulic fluid port of described first solenoid directional control valve, the first hydraulic fluid port of described second solenoid directional control valve;
Second hydraulic fluid port of described first solenoid directional control valve is connected respectively to the reverse hydraulic fluid port of jacking cylinder and the filler opening of described first stop valve, and the 3rd hydraulic fluid port of described first solenoid directional control valve is connected respectively to the forward hydraulic fluid port of described jacking cylinder and the filler opening of described second stop valve;
Second hydraulic fluid port of described second solenoid directional control valve is connected to the reverse hydraulic fluid port of support cylinder, and the 3rd hydraulic fluid port of described second solenoid directional control valve is connected respectively to the forward hydraulic fluid port of support cylinder and described 3rd stop valve is connected to accumulator;
3rd hydraulic fluid port, the oil outlet of described proportional pressure control valve, the 4th hydraulic fluid port of described first solenoid directional control valve, the 4th hydraulic fluid port of described second solenoid directional control valve, the oil outlet of described first stop valve of the described two-bit triplet solenoid valve in jacking described in four groups and support hydraulic pressure subtense angle, the oil outlet of described second stop valve all connects back described fuel tank by return line.
2. the hydraulic driving system of pressure adjustable according to claim 1, is characterized in that: the oil outlet of described first one-way valve is connected with the first charge oil pressure sensor.
3. the hydraulic driving system of pressure adjustable according to claim 1, is characterized in that: described jacking cylinder has jacking cylinder displacement transducer; Described support cylinder have support cylinder displacement transducer and support cylinder gravity sensor.
4. the hydraulic driving system of pressure adjustable according to claim 1, is characterized in that: described return line is connected to cooler and filter in the location strings close to fuel tank.
5. the hydraulic driving system of pressure adjustable according to claim 1, is characterized in that: described fuel tank has level meter, liquid level relay, air filter and temperature transducer.
6. the hydraulic driving system of pressure adjustable according to claim 4, is characterized in that: be also connected with the 4th stop valve between described fuel tank and the return line entering before described cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510830654.1A CN105275895A (en) | 2015-11-25 | 2015-11-25 | Hydraulic driving system achieving pressure adjustment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510830654.1A CN105275895A (en) | 2015-11-25 | 2015-11-25 | Hydraulic driving system achieving pressure adjustment |
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| CN105275895A true CN105275895A (en) | 2016-01-27 |
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| CN201510830654.1A Pending CN105275895A (en) | 2015-11-25 | 2015-11-25 | Hydraulic driving system achieving pressure adjustment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202241A (en) * | 2017-06-26 | 2017-09-26 | 江苏江海润液设备有限公司 | A kind of phase modulation lubricating oil system |
| CN114151396A (en) * | 2021-12-10 | 2022-03-08 | 上海电气液压气动有限公司 | Fan main bearing stress hydraulic system |
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| JP2003013914A (en) * | 2001-07-04 | 2003-01-15 | Sumitomo Heavy Ind Ltd | Hydraulic circuit |
| CN1706632A (en) * | 2005-05-26 | 2005-12-14 | 株洲硬质合金集团有限公司 | Auxiliary hydraulic set for great tonnage press |
| CN101898244A (en) * | 2010-08-16 | 2010-12-01 | 中国重型机械研究院有限公司 | Synchronous hydraulic system of diffluence motor |
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| CN203176023U (en) * | 2013-02-06 | 2013-09-04 | 中国石油天然气股份有限公司 | Oil pipe hoister hydraulic device |
| CN103644155A (en) * | 2013-12-17 | 2014-03-19 | 上海电气电站设备有限公司 | Hydraulic actuator |
| CN204553088U (en) * | 2015-03-18 | 2015-08-12 | 天津市精研工程机械传动有限公司 | The hydraulic braking sytem of wind-driven generator |
| CN205190375U (en) * | 2015-11-25 | 2016-04-27 | 上海电气液压气动有限公司 | Pressure adjustable hydraulic drive system |
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2015
- 2015-11-25 CN CN201510830654.1A patent/CN105275895A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003013914A (en) * | 2001-07-04 | 2003-01-15 | Sumitomo Heavy Ind Ltd | Hydraulic circuit |
| CN1706632A (en) * | 2005-05-26 | 2005-12-14 | 株洲硬质合金集团有限公司 | Auxiliary hydraulic set for great tonnage press |
| CN101898244A (en) * | 2010-08-16 | 2010-12-01 | 中国重型机械研究院有限公司 | Synchronous hydraulic system of diffluence motor |
| CN203176023U (en) * | 2013-02-06 | 2013-09-04 | 中国石油天然气股份有限公司 | Oil pipe hoister hydraulic device |
| CN203176024U (en) * | 2013-03-09 | 2013-09-04 | 山东永平再生资源有限公司 | Shearing machine hydraulic control system |
| CN103644155A (en) * | 2013-12-17 | 2014-03-19 | 上海电气电站设备有限公司 | Hydraulic actuator |
| CN204553088U (en) * | 2015-03-18 | 2015-08-12 | 天津市精研工程机械传动有限公司 | The hydraulic braking sytem of wind-driven generator |
| CN205190375U (en) * | 2015-11-25 | 2016-04-27 | 上海电气液压气动有限公司 | Pressure adjustable hydraulic drive system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202241A (en) * | 2017-06-26 | 2017-09-26 | 江苏江海润液设备有限公司 | A kind of phase modulation lubricating oil system |
| CN114151396A (en) * | 2021-12-10 | 2022-03-08 | 上海电气液压气动有限公司 | Fan main bearing stress hydraulic system |
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Application publication date: 20160127 |