CN105257614B - A kind of hydraulic jack high-precise synchronization control complexes of super large jumbo - Google Patents
A kind of hydraulic jack high-precise synchronization control complexes of super large jumbo Download PDFInfo
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- CN105257614B CN105257614B CN201510833551.0A CN201510833551A CN105257614B CN 105257614 B CN105257614 B CN 105257614B CN 201510833551 A CN201510833551 A CN 201510833551A CN 105257614 B CN105257614 B CN 105257614B
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Abstract
Complexes are controlled the invention discloses a kind of hydraulic jack high-precise synchronization of super large jumbo, are made up of mechanical device, hydraulic system and electric-control system；The mechanical device includes four jacking cylinders, four support cylinders and four plugging pin oil cylinders；The hydraulic system includes fuel tank, four jackings and support hydraulic pressure subsystem and a latch hydraulic subsystem.The present invention has the advantages that super large jumbo is smoothly smoothly lifted into flat surface from ground.
Description
Technical field
The present invention relates to the hydraulic jack high-precise synchronization control of a kind of hydraulic test, more particularly to a kind of super large jumbo
Covering device is made.
Background technology
In impeller dynamic test, one of them important test event is that flow deflector is placed into ultra-large type water tank to carry out
Test.The water tank of this ultra-large type, it is wide 3 meters, it is long 6 meters, weighed 132 tons in the case where storing full water.In test process, water tank
It may require that in the flat surface from surface uplift to 3.2m and fallen after rise from flat surface to ground, and this span is big and heavy
Water tank from surface uplift to plane on be very difficult thing, and require during lifting, water tank be not allow for skew, it is no
Then water tank will be blocked by track, it is impossible to continued lifting, or even can be caused the damage of water tank.
Later, someone expected being lifted the lifting of this super large jumbo using screw body.Although utilizing screw mandrel machine
Structure, which carries out lifting, has the advantages that precision is high, and super large jumbo can be avoided not shifted during lifting, but silk
The power that linkage can be provided is limited, it is impossible to reach the power needed for lifting super large jumbo, therefore, finally utilizes screw body
Carrying out this super large jumbo of lifting still can not realize.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of hydraulic jack high-precise synchronization control of super large jumbo
Complexes, lift super large jumbo by way of hydraulic pressure, to overcome the shortcomings of that prior art is present.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
The hydraulic jack high-precise synchronization control complexes of a kind of super large jumbo, by mechanical device, hydraulic system
And electric-control system composition；
The mechanical device includes four jacking cylinders, four support cylinders and four plugging pin oil cylinders；
The hydraulic system includes fuel tank, four jackings and support hydraulic pressure subsystem and a latch hydraulic subsystem；
Include the duplex pump driven by buncher, two-bit triplet electromagnetism in every group of jacking and support hydraulic pressure subsystem
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,
First balanced valve, the second balanced valve, the 3rd balanced valve, the 4th balanced valve, accumulator；
The oil inlet of the duplex pump is connected to the fuel tank, the oil-out of the main oil pump of the duplex pump through the first ball valve
The first hydraulic fluid port of the two-bit triplet magnetic valve is connected to, the second hydraulic fluid port of the two-bit triplet magnetic valve connects the first check valve
Oil inlet；
The oil-out of the auxiliary oil pump of the duplex pump is directly connected to the oil inlet of first check valve, and described first is single
The oil inlet, the first hydraulic fluid port of first solenoid directional control valve, institute of the proportional pressure control valve are connected respectively to the oil-out of valve
State the first hydraulic fluid port of the second solenoid directional control valve；
Second hydraulic fluid port of first solenoid directional control valve is connected to the reverse hydraulic fluid port of jacking cylinder through first balanced valve,
3rd hydraulic fluid port of first solenoid directional control valve is connected to the positive hydraulic fluid port of the jacking cylinder through second balanced valve；It is described
First balanced valve is also connected to the oil inlet of first stop valve；Second balanced valve is also connected to second stop valve
Oil inlet；
Second hydraulic fluid port of second solenoid directional control valve is connected to the reverse hydraulic fluid port of support cylinder through the 3rd balanced valve,
3rd hydraulic fluid port of second solenoid directional control valve is connected to the positive hydraulic fluid port of support cylinder through the 4th balanced valve；Described 4th
Balanced valve is also connected to accumulator by the 3rd stop valve；
3rd hydraulic fluid port of the two-bit triplet magnetic valve in four jackings and support hydraulic pressure subsystem, the ratio
It is the oil-out of overflow valve, the 4th hydraulic fluid port of first solenoid directional control valve, the 4th hydraulic fluid port of second solenoid directional control valve, described
The oil-out of first stop valve, the oil-out of second stop valve connects back to the fuel tank by return line；
The latch hydraulic subsystem includes by motor-driven gear pump, the 3rd solenoid directional control valve, inserts formula overflow valve, liquid
Press lock, the first unidirectional adjustable throttling, the second unidirectional adjustable throttling；
The oil inlet of the gear pump is connected to the fuel tank through the second ball valve, and the oil-out of the gear pump is single through second
The first hydraulic fluid port of the 3rd solenoid directional control valve and the oil inlet of the slotting formula overflow valve are connected to valve, the 3rd electromagnetism is changed
Four are connected to one of check valve of second hydraulic fluid port through the hydraulic lock of valve, the first unidirectional adjustable throttling to insert
The reverse hydraulic fluid port of oil cylinder is sold, it is another check valve of the 3rd hydraulic fluid port through the hydraulic lock of the 3rd solenoid directional control valve, described
Second unidirectional adjustable throttling is connected to the positive hydraulic fluid port of four plugging pin oil cylinders；
4th hydraulic fluid port of the 3rd solenoid directional control valve and the oil-out of slotting formula overflow valve connect back to institute by return line
State fuel tank.
In the present invention, four jacking cylinders are fixed in the foundation ditch below super large jumbo, and super large heavy type is set
Standby both sides outer wall all around symmetrically connects the external part of the jacking cylinder close to tip position；Four latch oil
Cylinder is respectively and fixedly installed at four angles of super large jumbo bottom, and external part is towards outside；Four support cylinders are then right
The position distribution of four plugging pin oil cylinders is answered in flat surface；The external part of the plugging pin oil cylinder just can be by institute after stretching out
State the support of support cylinder jack-up.
In the present invention, the oil-out of first check valve is connected with the first charge oil pressure sensor；The jacking oil
Cylinder has jacking cylinder displacement transducer；The oil-out of first balanced valve and the oil-out of the second balanced valve are connected to
Jacking first pressure sensor and jacking second pressure sensor；On the support cylinder have support cylinder displacement transducer and
Support cylinder gravity sensor；The oil-out of 3rd balanced valve and the oil-out of the 4th balanced valve are connected to branch
Support first pressure sensor and support second pressure sensor；The oil-out of second check valve is connected with the second charge oil pressure
Sensor.
In the present invention, the electric-control system includes master controller and motor control panel；The master controller and motor
Control panel is connected, and motor control panel is connected by four servo amplifying circuits with four bunchers in hydraulic system respectively；
The first charge oil pressure sensor, the proportional pressure control valve in four jackings and support hydraulic pressure subsystem, described two three
Three-way electromagnetic valve, the jacking cylinder displacement transducer, the jacking first pressure sensor, jacking second pressure sensing
It is device, the support cylinder displacement transducer, the support cylinder gravity sensor, the support first pressure sensor, described
Support second pressure sensor, it is first solenoid directional control valve, second solenoid directional control valve, first stop valve, described
Second stop valve, the 3rd stop valve are all connected with master controller；The second fuel feeding pressure in the latch hydraulic subsystem
Force snesor, the 3rd solenoid directional control valve, the slotting formula overflow valve are all connected with master controller.
In the present invention, cooler and filter are serially connected with the position close to fuel tank on the return line；The oil
Case has liquid level sensor, liquid level relay, air filter and temperature sensor；The oil-out of second ball valve and entrance are described
The 4th stop valve is also associated between return line before cooler；It is the liquid level sensor, the temperature sensor, described
Cooler and the 4th stop valve also connect master controller；The master controller is also connected with operation interface and man-machine interface.
In the present invention, the fuel tank, the motor-driven gear pump, the cooler, four bunchers
The duplex pump of driving, the filter constitute hydraulic station；The hydraulic station is arranged on two layers of steelframe, wherein the fuel tank is pacified
Mounted in the top layer of the steelframe, the duplex that the motor-driven gear pump, the cooler, four bunchers drive
Pump is disposed side by side on the bottom of the steelframe, and the filter is arranged on the top of the fuel tank；The gear pump, described in four
Duplex pump is communicated to the bottom of the fuel tank by oil pipe；The cooler is communicated to the filter by oil pipe.
In addition, the fuel tank internal is provided with liquid level sensor, multiple pressure gauges are arranged on the base side of the fuel tank
On；The side wall of the fuel tank is provided with maintenance window.
Using above-mentioned technical proposal, the present invention has smoothly smoothly is lifted to platform by super large jumbo from ground
The advantage in face.
Brief description of the drawings
The present invention is described in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is mechanical device structure schematic diagram of the invention；
Fig. 2 is hydraulic schematic of the invention；
Fig. 3 is hydraulic station structure schematic diagram of the invention；
Fig. 4 is A-A direction views in Fig. 3；
Fig. 5 is electric-control system schematic diagram of the invention.
Embodiment
The hydraulic jack high-precise synchronization control complexes of the super large jumbo of the present invention, by mechanical device, hydraulic pressure
System and electric-control system composition.The super large jumbo of the present invention is by taking the heavy water tank of the super large mentioned by background technology as an example.
As shown in figure 1, the mechanical device includes four jacking cylinders 20, four support cylinders 21 and four latch oil
Cylinder 22.
Wherein, four jacking cylinders 20 are fixed in the foundation ditch 01 of the lower section of water tank 1100.The both sides outer wall of water tank 1100 connects
Proximal head position has all around been symmetrically distributed four side wall engaging lugs 1101, and jacking cylinder 20 is located at side wall engaging lug 1101
Lower section.The external part of jacking cylinder 20 is connected on side wall engaging lug 1101.
Four plugging pin oil cylinders 22 are respectively and fixedly installed at four angles of the bottom of water tank 1100, external part towards outside,
Fixing end is also connected on the bottom engaging lug 1103 of the centre of water tank bottom by support bar 1102.Such structure to insert
Pin oil cylinder 22 is firmly secured to four angles of the bottom of water tank 10.
Four support cylinders 21 then correspond to the position distribution of four plugging pin oil cylinders 22 in flat surface 02.Plugging pin oil cylinder 22
External part can be supported by the jack-up of support cylinder 21 just after stretching out.
The working method of the jacking mechanical device is：
Water tank jacking process：Four jacking cylinders 20 by water tank 1100 from the jacking of ground 03 to flat surface 02, Ran Housi
Individual plugging pin oil cylinder 22 distinguishes protruding, then, and the support cylinder 21 positioned at the lower section of plugging pin oil cylinder 22 rises, and is inserted until supporting
Oil cylinder 22 is sold, then water tank 1100 is continued up the small segment distance of jacking (about 40mm) by support cylinder 21 again, and is finally supported
Firmly water tank 1100 so that water tank 1100 is seated in the position of flat surface more than 02.
Water tank descent：Jacking cylinder 20 is by the slightly upward jacking of water tank 1100 (about upward jacking 2-3mm) so that
Plugging pin oil cylinder 22 is upwardly separated from support cylinder 21, and then plugging pin oil cylinder 22 is retracted, and subsequently shortens jacking cylinder 20 so that
Water tank slowly declines until falling after rise to ground 03.
As shown in Fig. 2 hydraulic system, including fuel tank 1, four jackings and support hydraulic pressure subsystem 201,202,203,204
With a latch hydraulic subsystem 300.
Include the duplex pump 8 driven by buncher 7, two-bit triplet electricity in every group of jacking and support hydraulic pressure subsystem
Magnet valve 32, proportional pressure control valve 12, the first solenoid directional control valve 161, the second solenoid directional control valve 162, the first stop valve 311, second section
Only valve 312, the 3rd stop valve 313, the first balanced valve 291, the second balanced valve 292, the 3rd balanced valve 293, the 4th balanced valve
294, accumulator 26.
Wherein, the oil inlet of duplex pump 8 is connected to fuel tank 1, the oil-out of the main oil pump of duplex pump 8 through the first ball valve 151
The first hydraulic fluid port of two-bit triplet magnetic valve 32 is connected to, the second hydraulic fluid port of two-bit triplet magnetic valve 32 connects the first check valve 111
Oil inlet.
The oil-out of the auxiliary oil pump of duplex pump 8 is directly connected to the oil inlet of the first check valve 111, the first check valve 111
Oil-out be connected respectively to the oil inlet of proportional pressure control valve 12, the first hydraulic fluid port of the first solenoid directional control valve 161, the second electromagnetism and change
To the first hydraulic fluid port of valve 162.
The oil-out of first check valve 111 is also associated 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 balanced valve 291, the
3rd hydraulic fluid port of one solenoid directional control valve 161 is connected to the positive hydraulic fluid port of jacking cylinder through the second balanced valve 292.First balanced valve
291 are also connected to the oil inlet of the first stop valve 311.Second balanced valve 292 is also connected to the oil inlet of the second stop valve 312.
Jacking cylinder 20 has jacking displacement transducer 301.The oil-out of the oil-out of first balanced valve 291 and the second balanced valve 292
It has been also respectively connected with jacking first pressure sensor 142 and jacking second pressure sensor 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 balanced valve 293,
3rd hydraulic fluid port of the second solenoid directional control valve 162 is connected to the positive hydraulic fluid port of support cylinder 21 through the 4th balanced valve 294.4th balance
Valve 294 is also connected to accumulator 26 by the 3rd stop valve 313.With bracing displacement sensor 302 and again on support cylinder 21
Force snesor 303.The oil-out of 3rd balanced valve 293 and the oil-out of the 4th balanced valve have been also respectively connected with support first pressure
Sensor 144 and support second pressure sensor 145.
Four jackings and the 3rd oil of the two-bit triplet magnetic valve 32 in support hydraulic pressure subsystem 201,202,203,204
Mouth, the oil-out of proportional pressure control valve 12, the 4th hydraulic fluid port of the first solenoid directional control valve 161, the 4th oil of the second solenoid directional control valve 162
Mouth, the oil-out of the first stop valve 311, the oil-out of the second stop valve 312 pass through return line and connect oil return box 1.
In the present invention, the magnetic valve of duplex pump 8 must not electricity, only main oil pump work；Magnetic valve obtains electric, main oil pump and pair oil
Pump works simultaneously.
The working method of jacking and support hydraulic pressure subsystem is：The driving duplex pump 8 of buncher 7 works, and works as two-bit triplet
First hydraulic fluid port of magnetic valve 31 and the connection of the second hydraulic fluid port, the main oil pump and auxiliary oil pump of duplex pump 8 pass through the first check valve 111 simultaneously
To jacking and support hydraulic pressure subsystem fuel feeding, when the first hydraulic fluid port of two-bit triplet magnetic valve 31 and the cut-off of the second hydraulic fluid port, the first oil
When mouth is connected with the 3rd hydraulic fluid port, only the auxiliary oil pump of duplex pump 8 is supplied by the first check valve 111 to jacking and support hydraulic pressure subsystem
Oil, the main oil pump of duplex pump 8 then flows back to fuel tank 1 by the first hydraulic fluid port and the 3rd hydraulic fluid port of two-bit triplet magnetic valve 31.
Proportional pressure control valve 12 is then used to realize the pressure for changing the hydraulic oil for entering jacking and support hydraulic pressure subsystem.
When the first solenoid directional control valve 161 is being connected, for driving jacking cylinder 20 to work, at this moment the second electromagnetic switch is electric
Magnet valve 162 ends, and support cylinder 21 does not work.When the second electromagnetic switch magnetic valve 162 is being connected, for driving support cylinder
21 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 and the second oil
When mouth connection, the 3rd hydraulic fluid port and the connection of the 4th hydraulic fluid port, hydraulic oil then enters from the reverse hydraulic fluid port of jacking cylinder 20, and driving jacking is oily
Cylinder 20 shortens, for the water tank 1100 that lands.When the first hydraulic fluid port of the first solenoid directional control valve 161 and the 3rd hydraulic fluid port are connected, second is oily
When mouth is connected with the 4th hydraulic fluid port, hydraulic oil then enters from the positive hydraulic fluid port of jacking cylinder 20, and driving jacking cylinder 20 extends, and is used 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 and second of the first solenoid directional control valve 162
Hydraulic fluid port is connected, when the 3rd hydraulic fluid port and the connection of the 4th hydraulic fluid port, and hydraulic oil then enters from the reverse hydraulic fluid port of support cylinder 21, driving support
Oil cylinder 21 shortens, for being separated with water tank.When the first hydraulic fluid port of the first solenoid directional control valve 162 and the 3rd hydraulic fluid port are connected, second is oily
When mouth is connected with the 4th hydraulic fluid port, hydraulic oil then enters from the positive hydraulic fluid port of support cylinder 21, and driving support cylinder 21 extends, and is used for
Support water tank.
3rd stop valve 313 is generally in cut-off state, after support cylinder 21 supports water tank, by the 3rd stop valve
313 open connection so that carry out pressurize to support cylinder 21 using accumulator 26.
First stop valve 311 and the second stop valve 312 are generally also in cut-off state, when support cylinder 21 is operated
When, because jacking cylinder 20 will also follow motion, at this moment because the first solenoid directional control valve 161 is in cut-off state, to avoid
There is emptying phenomenon in jacking cylinder 20, needs to open the first stop valve 311 and the second stop valve 312 for this so that jacking cylinder
20 connect with fuel tank 1, it is to avoid emptying phenomenon.
Latch hydraulic subsystem 300 includes the gear pump 10, the 3rd solenoid directional control valve 163, slotting formula overflow driven by motor 9
Valve 13, hydraulic lock 19, the first unidirectional adjustable throttling 271, the second unidirectional adjustable throttling 272.Hydraulic lock 19 is by two lists
To valve group into, the positive hydraulic fluid port mutual induction of two check valves in hydraulic lock 19, as long as the forward direction oil of one of check valve
Mouth has pressure to be opened, and the pressure that the positive hydraulic fluid port of another check valve can also be sensed simultaneously is opened, i.e. hydraulic lock 19
Open the function of simultaneously closing off simultaneously with two check valves.
The oil inlet of gear pump 10 is connected to fuel tank 1 through the second ball valve 152, and the oil-out of gear pump 10 is through the second check valve
112 are connected to the oil inlet of the first hydraulic fluid port of the 3rd solenoid directional control valve 163 and slotting formula overflow valve 13, the 3rd solenoid directional control valve 163
One of check valve of second hydraulic fluid port through hydraulic lock 19, the first unidirectional adjustable throttling 271 be connected to four plugging pin oil cylinders
22 reverse hydraulic fluid port, it is another check valve of the 3rd hydraulic fluid port through hydraulic lock 19 of the 3rd solenoid directional control valve 163, second unidirectional adjustable
Choke valve 272 is connected to the positive hydraulic fluid port of four plugging pin oil cylinders 22.
4th hydraulic fluid port of the 3rd solenoid directional control valve 163 and the oil-out of slotting formula overflow valve 13 connect oil return by return line
Case 1.
The oil-out of the oil-out of first unidirectional adjustable throttling 271 and the second unidirectional adjustable throttling 272 is also associated with
Pressure gauge 17.The oil-out of second check valve 112 is also associated with the second charge oil pressure sensor 146 and pressure gauge 17.
The working method of the latch hydraulic subsystem 300 is：Gear pump 10 is under the driving of motor 9 to latch hydraulic subsystem
300 fuel feeding, insert the oil pressure that formula overflow valve 13 is used to be set into latch hydraulic subsystem 300.
3rd solenoid directional control valve 163 also has two kinds of getting types：When the first hydraulic fluid port and second of the 3rd solenoid directional control valve 163
Hydraulic fluid port is connected, when the 3rd hydraulic fluid port and the connection of the 4th hydraulic fluid port, and hydraulic oil then enters from the reverse hydraulic fluid port of four plugging pin oil cylinders 22, driving
Plugging pin oil cylinder 22 retracts to separate with support cylinder 21.When the first hydraulic fluid port of the 3rd solenoid directional control valve 163 and the 3rd hydraulic fluid port connect
Logical, when the second hydraulic fluid port and the connection of the 4th hydraulic fluid port, hydraulic oil then enters from the positive hydraulic fluid port of four plugging pin oil cylinders 22, driving latch oil
Cylinder 22 is extended so as to be seated on support cylinder 21.
And when the 3rd magnetic valve reversal valve 163 ends, in hydraulic lock 19, two check valves can all end, so that inserting
The hydraulic oil of pin oil cylinder 22 piston both sides will not flow, so that the hold mode of plugging pin oil cylinder 22.
On return line cooler 23 and filter 24 are serially connected with close to the position of fuel tank 1.
Fuel tank 1 has liquid level sensor 3, liquid level relay 4, air filter 5 and temperature sensor 6.
In addition, the second ball valve 152 oil-out and enter cooler 23 before return line between be also associated with the 4th
Stop valve 314.The 4th generally cut-off of stop valve 314, it is synchronous when the first stop valve 311, the second stop valve 312 are opened
Open so that jacking cylinder 20 is connected with fuel tank 1, it is to avoid above-mentioned emptying phenomenon occur.
As shown in Figure 3 and Figure 4, fuel tank 1, motor 9 drive gear pump 10, cooler 23,4 driven by buncher 7
Duplex pump 8, filter 24 constitute hydraulic station 400.
The hydraulic station 400 is arranged on two layers of steelframe 401, and wherein fuel tank 1 is arranged on the top layer 402 of steelframe 401, by motor
Gear pump 10, cooler 23,4 duplex pumps 8 driven by buncher 7 of 9 drivings are disposed side by side on the bottom of steelframe 401
411, filter 24 is arranged on the top of fuel tank 1.Gear pump 10,4 duplex pumps 8 are communicated to the bottom of fuel tank 1 by oil pipe.It is cold
But device 23 is communicated to filter 24 also by oil pipe.Cooler 23 is forced air cooler.
Liquid level sensor 3 is internally provided with fuel tank 1, multiple pressure gauges 17 are then on the base side of fuel tank 1.
Pouring orifice 403 and air filter 5 that the top of fuel tank 1 is blocked provided with plunger.Access panel is provided with the side wall of fuel tank 1
Mouth 404.An end wall bottom has the fuel outlet 405 blocked by plunger in fuel tank 1.
Using said structure, fuel tank 1 is arranged on to the top of gear pump 20,4 duplex pumps 8, accordingly even when gear pump 10,
Duplex pump 8 does not work, the pressure that fuel tank also can be certain to system, can meet the partial pressure demand of system, subtract with energy-conservation
The effect of row.
In addition, the tip position in the bottom of steelframe 402 is additionally provided with terminal box 406.
For convenience of lifting, the two ends of steelframe 401 have lifting earhole 407.
As shown in figure 5, in electric-control system, core component has master controller and motor control panel.Master controller and motor
Control panel is connected, and motor control panel is also connected by 4 servo amplifying circuits with 4 bunchers in hydraulic system respectively,
For realizing that the rotating speed to each buncher is controlled, and and then control each duplex pump work.
The first charge oil pressure sensor, proportional pressure control valve, two-bit triplet electricity in four jackings and support hydraulic pressure subsystem
Magnet valve, jacking cylinder absolute displacement transducer, jacking first pressure sensor, jacking second pressure sensor, support cylinder mould
Intend displacement transducer, support cylinder gravity sensor, support first pressure sensor, support second pressure sensor, the first electricity
Magnetic reversal valve, the second solenoid directional control valve, the first stop valve, the second stop valve, the 3rd stop valve are all connected with master controller.
The second charge oil pressure sensor, the 3rd solenoid directional control valve, slotting formula overflow valve in latch hydraulic subsystem are all connected with
Main control.
Liquid level sensor, temperature sensor, cooler, the 4th stop valve also connect master controller.
Operation interface and man-machine interface are connected with master controller.
In the automatically controlling of invention, Synchronization Control is realized using the method for flow control and pressure compensation.In order to reduce mistake
Difference, system uses band to carry Starting mode.Master controller obtains the displacements of all oil cylinders, pressure, gravity, temperature data in real time, and
Each displacement of the subsystem of one of jacking and support hydraulic pressure, pressure, gravimetric data is set (to be set according to real work demand
Put) on the basis of data, and to the whole travel displacement of each oil cylinder carry out differential, segment movement.Segmented compensation (ensures that motion is flat
Surely).And compared each displacement, pressure, gravimetric data in other jackings and support hydraulic pressure subsystem in real time with reference data,
And according to showing that difference is analyzed and stepping, then calculate each interval positive and negative offset by shelves and (just to accelerate, bear to subtract
Speed stops), respectively to the electric machine speed regulation in other jackings and support hydraulic pressure subsystem and proportional pressure control valve pressure regulation so that each
Jacking cylinder or support cylinder remain synchronous.When other group oil cylinder error is more than allowable error intermediate value, seed oil cylinder is used
The auxiliary pump surging repairing mode of main pump fuel feeding, seed oil cylinder is quickly kept up with；When master cylinder lags behind seed oil cylinder.Master cylinder uses main pump
The auxiliary pump surging repairing mode of fuel feeding, master cylinder is quickly kept up with., will not be by oil temperature due to being closed loop servomechanism, gravity, oil cylinder and
The influence of pump volumetric efficiency.
System can be operated by operation interface and man-machine interface, data monitoring, parameter adjustment (according to authority,
Adjust different parameters), information alert, text alarm, failure reset.To the buncher in system, motor and each valve
Carry out operational control.
All analog quantity digital quantities of the system are by network transmission, and transmission speed is exceedingly fast, and antijamming capability is extremely strong, is
System is stable.
By foregoing detailed description as can be seen that the present invention has smoothly smoothly lifts super large jumbo from ground
It is raised to the advantage of flat surface.
Claims (7)
1. a kind of hydraulic jack high-precise synchronization control complexes of super large jumbo, it is characterised in that：By mechanical device,
Hydraulic system and electric-control system composition；
The mechanical device includes four jacking cylinders, four support cylinders and four plugging pin oil cylinders；
The hydraulic system includes fuel tank, four jackings and support hydraulic pressure subsystem and a latch hydraulic subsystem；
Include in every group of jacking and support hydraulic pressure subsystem the duplex pump driven by buncher, two-bit triplet magnetic 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,
One balanced valve, the second balanced valve, the 3rd balanced valve, the 4th balanced valve, accumulator；
The oil inlet of the duplex pump is connected to the fuel tank, the oil-out connection of the main oil pump of the duplex pump through the first ball valve
To the first hydraulic fluid port of the two-bit triplet magnetic valve, the second hydraulic fluid port of the two-bit triplet magnetic valve connects entering for the first check valve
Hydraulic fluid port；
The oil-out of the auxiliary oil pump of the duplex pump is directly connected to the oil inlet of first check valve, first check valve
Oil-out be connected respectively to the oil inlet of the proportional pressure control valve, the first hydraulic fluid port of first solenoid directional control valve, described
First hydraulic fluid port of two solenoid directional control valves；
Second hydraulic fluid port of first solenoid directional control valve is connected to the reverse hydraulic fluid port of jacking cylinder through first balanced valve, described
3rd hydraulic fluid port of the first solenoid directional control valve is connected to the positive hydraulic fluid port of the jacking cylinder through second balanced valve；Described first
Balanced valve is also connected to the oil inlet of first stop valve；Second balanced valve is also connected to entering for second stop valve
Hydraulic fluid port；
Second hydraulic fluid port of second solenoid directional control valve is connected to the reverse hydraulic fluid port of support cylinder through the 3rd balanced valve, described
3rd hydraulic fluid port of the second solenoid directional control valve is connected to the positive hydraulic fluid port of support cylinder through the 4th balanced valve；4th balance
Valve is also connected to accumulator by the 3rd stop valve；
The 3rd hydraulic fluid port, the proportional overflow of the two-bit triplet magnetic valve in four jackings and support hydraulic pressure subsystem
The oil-out of valve, the 4th hydraulic fluid port of first solenoid directional control valve, the 4th hydraulic fluid port of second solenoid directional control valve, described first
The oil-out of stop valve, the oil-out of second stop valve connects back to the fuel tank by return line；
The latch hydraulic subsystem includes by motor-driven gear pump, the 3rd solenoid directional control valve, inserts formula overflow valve, hydraulic pressure
Lock, the first unidirectional adjustable throttling, the second unidirectional adjustable throttling；
The oil inlet of the gear pump is connected to the fuel tank through the second ball valve, and the oil-out of the gear pump is through the second check valve
It is connected to the first hydraulic fluid port of the 3rd solenoid directional control valve and the oil inlet of the slotting formula overflow valve, the 3rd solenoid directional control valve
One of check valve of second hydraulic fluid port through the hydraulic lock, the first unidirectional adjustable throttling be connected to four latch oil
The reverse hydraulic fluid port of cylinder, another check valve of the 3rd hydraulic fluid port through the hydraulic lock of the 3rd solenoid directional control valve, described second
Unidirectional adjustable throttling is connected to the positive hydraulic fluid port of four plugging pin oil cylinders；
4th hydraulic fluid port of the 3rd solenoid directional control valve and the oil-out of slotting formula overflow valve connect back to the oil by return line
Case；
The oil-out of first check valve is connected with the first charge oil pressure sensor；
The jacking cylinder has jacking cylinder displacement transducer；The oil-out of first balanced valve and going out for the second balanced valve
Hydraulic fluid port is connected to jacking first pressure sensor and jacking second pressure sensor；
There is support cylinder displacement transducer and support cylinder gravity sensor on the support cylinder；3rd balanced valve
The oil-out of oil-out and the 4th balanced valve is connected to support first pressure sensor and support second pressure sensing
Device；
The oil-out of second check valve is connected with the second charge oil pressure sensor.
2. the hydraulic jack high-precise synchronization control complexes of super large jumbo according to claim 1, its feature
It is：
The electric-control system includes master controller and motor control panel；The master controller and motor control panel connection, motor
Control panel is connected by four servo amplifying circuits with four bunchers in hydraulic system respectively；
The first charge oil pressure sensor, the proportional pressure control valve in four jackings and support hydraulic pressure subsystem, described two
Position-3-way solenoid valve, the jacking cylinder displacement transducer, the jacking first pressure sensor, the jacking second pressure are passed
Sensor, the support cylinder displacement transducer, the support cylinder gravity sensor, the support first pressure sensor, institute
State support second pressure sensor, first solenoid directional control valve, second solenoid directional control valve, first stop valve, institute
State the second stop valve, the 3rd stop valve and be all connected with master controller.
3. the hydraulic jack high-precise synchronization control complexes of super large jumbo according to claim 2, its feature
It is：The second charge oil pressure sensor in the latch hydraulic subsystem, the 3rd solenoid directional control valve, the slotting formula
Overflow valve is all connected with master controller.
4. the hydraulic jack high-precise synchronization control complexes of super large jumbo according to claim 3, its feature
It is：
On the return line cooler and filter are serially connected with the position close to fuel tank；The fuel tank has level sensing
Device, liquid level relay, air filter and temperature sensor.
5. the hydraulic jack high-precise synchronization control complexes of super large jumbo according to claim 4, its feature
It is：
The 4th stop valve is also associated between return line before the oil-out and the entrance cooler of second ball valve.
6. the hydraulic jack high-precise synchronization control complexes of super large jumbo according to claim 5, its feature
It is：
The liquid level sensor, the temperature sensor, the cooler and the 4th stop valve also connect master controller；Institute
State master controller and be also connected with operation interface and man-machine interface.
7. the hydraulic jack high-precise synchronization control complexes of super large jumbo according to claim 6, its feature
It is：
The fuel tank, the motor-driven gear pump, the cooler, the duplex pump of four bunchers drivings, institute
State filter and constitute hydraulic station；
The hydraulic station is arranged on two layers of steelframe, wherein the fuel tank is arranged on the top layer of the steelframe, the motor driving
Gear pump, the cooler, the duplex pump of four bunchers drivings be disposed side by side on the bottom of the steelframe, it is described
Filter is arranged on the top of the fuel tank；The gear pump, four duplex pumps are communicated to the fuel tank by oil pipe
Bottom；The cooler is communicated to the filter by oil pipe.
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| CN106023775B (en) * | 2016-07-18 | 2019-01-18 | 天津优瑞纳斯液压机械有限公司 | The training system of hydraulic part in a kind of ocean lifting platform simulation device |
| CN107271288B (en) * | 2017-05-05 | 2019-08-23 | 中国建筑股份有限公司 | 10,000 tons load testing machine moving beam lifting system |
| CN108916142B (en) * | 2018-06-05 | 2019-12-06 | 北京交通大学 | Synchronous control stability analysis method and system for large hydraulic jacking system |
| CN108757616B (en) * | 2018-07-13 | 2019-12-03 | 江苏大学 | A kind of panzer synchronous hydraulic jacking system with levelling function |
| CN111608977B (en) * | 2020-06-03 | 2022-05-17 | 南京工程学院 | High-precision synchronous control system for heavy lifting stage |
| CN112922914A (en) * | 2021-01-12 | 2021-06-08 | 盾构及掘进技术国家重点实验室 | High-efficiency precise synchronous lifting hydraulic control system for segment assembly of shield tunneling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3525823A1 (en) * | 1985-07-19 | 1987-01-29 | Schmitz Soehne Gmbh Maschf | Path-dependent synchronous pressure control for double-acting presses, in particular laminating presses |
| CN2869407Y (en) * | 2006-02-16 | 2007-02-14 | 湖北三江航天万山特种车辆有限公司 | Vehicle platform synchronous lifting hydraulic system |
| DE102008049135A1 (en) * | 2008-09-26 | 2010-04-08 | Gisela Weber | Hydraulic system for adjusting blade assembly unit of heavy goods vehicle, has hydraulic controlling unit with hydraulic pump and hydraulic valves |
| US8056465B2 (en) * | 2008-09-29 | 2011-11-15 | Deere & Company | Active implement down force system providing reduced heat generation |
| CN202186072U (en) * | 2011-06-08 | 2012-04-11 | 天津市天锻压力机有限公司 | Numerical control frame type hydraulic synchronous control system for roller way of hydraulic press |
| CN202360486U (en) * | 2011-10-25 | 2012-08-01 | 苏州新长光热能科技有限公司 | Hydraulic synchro-lift control system of bidirectional skip car |
| CN103671313B (en) * | 2012-08-30 | 2016-07-06 | 北京索普液压机电有限公司 | The hydraulic pressure press of transformer coil can be processed |
| CN205190395U (en) * | 2015-11-25 | 2016-04-27 | 上海电气液压气动有限公司 | Hydraulic cylinder high -precision synchronization control integrated equipment of super large jumbo |
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