CN105545845B - A kind of fluid pressure drive device of super large jumbo - Google Patents
A kind of fluid pressure drive device of super large jumbo Download PDFInfo
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- CN105545845B CN105545845B CN201510830304.5A CN201510830304A CN105545845B CN 105545845 B CN105545845 B CN 105545845B CN 201510830304 A CN201510830304 A CN 201510830304A CN 105545845 B CN105545845 B CN 105545845B
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Abstract
The invention discloses a kind of fluid pressure drive device of super large jumbo, including four jacking cylinders, four support cylinders and four plugging pin oil cylinders and hydraulic system；The hydraulic system includes fuel tank, four jackings and support hydraulic pressure subsystem and a latch hydraulic subsystem；Duplex pump, 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, the first balanced valve, the second balanced valve, the 3rd balanced valve, the 4th balanced valve, accumulator driven by buncher are included in every group of jacking and support hydraulic pressure 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 a kind of hydraulic test, more particularly to a kind of fluid pressure drive device of super large jumbo.
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 full water is stored.In test process, water tank
May require that in the flat surface from surface uplift to 3.2m and fallen after rise to ground from flat surface, 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 continue lifting, or even the damage that can cause water tank.
Later, someone expected being lifted using screw body the lifting of this super large jumbo.Although using screw mandrel machine
Structure carries out lifting has the advantages that high precision, 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 the power needed for reaching lifting super large jumbo, therefore, finally using screw body
Carrying out this super large jumbo of lifting still cannot realize.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of fluid pressure drive device of super large jumbo, by hydraulic pressure
Mode lift super large jumbo, 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：
A kind of fluid pressure drive device of super large jumbo, including four jacking cylinders, four support cylinders and four
Plugging pin oil cylinder and hydraulic system；
The hydraulic system includes fuel tank, four jackings and support hydraulic pressure subsystem and a latch hydraulic subsystem；
Duplex pump, the two-bit triplet electromagnetism driven by buncher are included in each 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, and the oil-out of the main oil pump of the duplex pump is connected to described
First hydraulic fluid port of two-bit triplet magnetic valve, the second hydraulic fluid port of the two-bit triplet magnetic valve connects the oil inlet of the first check valve；
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
Oil inlet, the first hydraulic fluid port of first solenoid directional control valve, the 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, the ratio of the two-bit triplet magnetic valve in four jackings and support hydraulic pressure subsystem
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 the 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
Pressure lock, the first unidirectional adjustable throttling, the second unidirectional adjustable throttling；
Fuel tank described in the oil inlet of the gear pump, the oil-out of the gear pump is connected to described through the second check valve
The oil inlet of the first hydraulic fluid port of three solenoid directional control valves and the slotting formula overflow valve, the second hydraulic fluid port warp of the 3rd solenoid directional control valve
One of check valve of the hydraulic lock, the first unidirectional adjustable throttling are connected to four reverse oils of plugging pin oil cylinder
Mouthful, the 3rd hydraulic fluid port of the 3rd solenoid directional control valve through the hydraulic lock another check valve, described second unidirectional adjustable
Stream valve is connected to four positive hydraulic fluid ports of the plugging pin oil cylinder；
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 sets
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
Four position distributions of the plugging pin oil cylinder are 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 fuel feeding first pressure sensor；The jacking oil
Cylinder has jacking cylinder displacement transducer；The oil-out of first balanced valve is connected with jacking first pressure sensor, second
The oil-out of balanced valve is connected with jacking second pressure sensor；On the support cylinder have support cylinder displacement transducer and
Support cylinder gravity sensor；The oil-out of the 3rd balanced valve is connected with support first pressure sensor, described Siping City
The oil-out of weighing apparatus valve is connected with support second pressure sensor；The oil-out of second check valve is connected with fuel feeding second pressure
Sensor.
In the present invention, cooler and filter are being serially connected with close to the position of fuel tank on the return line；The oil
Case has liquid level gauge, liquid level relay, air filter and temperature sensor；The fuel tank and the oil return entered before the cooler
The 4th stop valve is also associated between pipeline.
Using above-mentioned technical proposal, the present invention has super large jumbo is smoothly smoothly lifted into platform 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.
Specific embodiment
The fluid pressure drive device of super large jumbo of the invention, is made up of mechanical device, hydraulic system.It is of the invention super
Big jumbo is by taking the super large heavy type water tank 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 causes 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 four position distributions of plugging pin oil cylinder 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, and then, the support cylinder 21 positioned at the lower section of plugging pin oil cylinder 22 rises, until support inserting
Pin oil cylinder 22, 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 1, four jackings of fuel tank and support hydraulic pressure subsystem 201,202,203,204
With a latch hydraulic subsystem 300.
Duplex pump 8, the two-bit triplet electricity driven by buncher 7 is included 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 162,311, second section of the first stop valve
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 the first check valve 111 is also associated with fuel feeding first 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 oil inlets for being also connected to 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 first balanced valve 291 is connected with jacking first pressure sensor
142, the oil-out of the second balanced valve 292 is connected with 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.There is bracing displacement sensor 302 and weight on support cylinder 21
Force snesor 303.The oil-out of the 3rd balanced valve 293 is connected with support first pressure sensor 144, the 4th balanced valve it is fuel-displaced
Mouth is connected with support second pressure sensor 145.
3rd oil of the two-bit triplet magnetic valve 32 in four jackings and 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 connect oil return box 1 by return line.
In the present invention, the magnetic valve of duplex pump 8 must not electricity, only main oil pump work；Magnetic valve obtains electric, and main oil pump and pair are oily
Pump works simultaneously.
The working method of jacking and support hydraulic pressure subsystem is：Buncher 7 drives duplex pump 8 to work, and works as two-bit triplet
First hydraulic fluid port of magnetic valve 31 and the second hydraulic fluid port are connected, and 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 second hydraulic fluid port end, 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 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 for the pressure for realizing changing the hydraulic oil for entering jacking and support hydraulic pressure subsystem.
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 is electric
Magnet valve 162 ends, and support cylinder 21 does not work.When the second electromagnetic switch magnetic valve 162 is when connecting, 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 4th hydraulic fluid port are connected, hydraulic oil then enters from the reverse hydraulic fluid port of jacking cylinder 20, drives jacking 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, the second oil
When mouth is connected with the 4th hydraulic fluid port, hydraulic oil then enters from the positive hydraulic fluid port of jacking cylinder 20, drives jacking cylinder 20 to extend, and is used for
By water tank jack-up.
Second solenoid directional control valve 162 also has two kinds of getting types：When first hydraulic fluid port and second of the first solenoid directional control valve 162
Hydraulic fluid port is connected, and when the 3rd hydraulic fluid port and the 4th hydraulic fluid port are connected, hydraulic oil then enters from the reverse hydraulic fluid port of support cylinder 21, drives 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, the second oil
When mouth is connected with the 4th hydraulic fluid port, hydraulic oil then enters from the positive hydraulic fluid port of support cylinder 21, drives support cylinder 21 to extend, 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 driven by motor 9, the 3rd solenoid directional control valve 163, inserts formula overflow
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
The oil inlet of 112 the first hydraulic fluid ports for being connected to the 3rd solenoid directional control valve 163 and slotting formula overflow valve 13, the 3rd solenoid directional control valve 163
The second hydraulic fluid port be connected to four plugging pin oil cylinders through one of check valve of hydraulic lock 19, the first unidirectional adjustable throttling 271
22 reverse hydraulic fluid port, the 3rd hydraulic fluid port of the 3rd solenoid directional control valve 163 through hydraulic lock 19 another check valve, second unidirectional adjustable
Choke valve 272 is connected to four positive hydraulic fluid ports of plugging pin oil cylinder 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 the first unidirectional adjustable throttling 271 and the second unidirectional adjustable throttling 272 is also associated with
Pressure gauge 17.The oil-out of the second check valve 112 is also associated with fuel feeding second 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, inserting formula overflow valve 13 is used to be set into the oil pressure of latch hydraulic subsystem 300.
3rd solenoid directional control valve 163 also has two kinds of getting types：When first hydraulic fluid port and second of the 3rd solenoid directional control valve 163
Hydraulic fluid port is connected, and when the 3rd hydraulic fluid port and the 4th hydraulic fluid port are connected, hydraulic oil then enters from four reverse hydraulic fluid ports of plugging pin oil cylinder 22, drives
Plugging pin oil cylinder 22 is retracted to be separated 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 4th hydraulic fluid port are connected, hydraulic oil then enters from four positive hydraulic fluid ports of plugging pin oil cylinder 22, drives 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 gauge 3, liquid level relay 4, air filter 5 and temperature sensor 6.
In addition, the oil-out of the second ball valve 152 and being also associated with the 4th between the return line before cooler 23
Stop valve 314.The 4th generally cut-off of stop valve 314, synchronization 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, the gear pump 10 of the driving of motor 9,23,4, cooler are 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
9 gear pumps 10 for driving, 23,4 duplex pumps 8 driven by buncher 7 of cooler are disposed side by side on the bottom of steelframe 401
411, filter 24 is arranged on the top of fuel tank 1.10,4 duplex pumps 8 of gear pump 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 gauge 3 is internally provided with fuel tank 1, multiple pressure gauges 17 are then on the base side of fuel tank 1.
The top of fuel tank 1 is provided with the pouring orifice 403 and air filter 5 of plunger closure.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 20,4 tops of duplex pump 8 of gear pump, accordingly even when gear pump 10,
Duplex pump 8 does not work, and fuel tank also can give system certain pressure, 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, also including electric-control system, in electric-control system, core component has master controller and motor control panel.
Master controller and motor control panel are connected, and motor control panel is also respectively by 4 in 4 servo amplifying circuits and hydraulic system
Buncher is connected, and for realizing that the rotating speed to each buncher is controlled, and and then controls each duplex pump work.
Fuel feeding first 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
Master controller.
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 automatically controlling for invention, Synchronization Control realized using the method for flow control and pressure compensation.In order to reduce mistake
Difference, system carries Starting mode using band.Master controller obtains displacement, pressure, gravity, the temperature data of all oil cylinders 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 differential, segment movement are carried out to the whole travel displacement of each oil cylinder.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, the positive and negative offset for then calculating each interval by shelves (is just being to accelerate, is bearing 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 quickly keeps 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 quickly keeps up with.Due to being closed loop servomechanism, will not receive oil temperature, 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,
Adjustment different parameters), information alert, text alarm, failure reset.To the buncher in system, motor and each valve
Carry out operational control.
By network transmission, transmission speed is exceedingly fast all of analog quantity digital quantity of the system, and antijamming capability is extremely strong, is
System stabilization.
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 (5)
1. a kind of fluid pressure drive device of super large jumbo, it is characterised in that：Including four jacking cylinders, four support cylinders
And four plugging pin oil cylinders and hydraulic system；
The hydraulic system includes fuel tank, four jackings and support hydraulic pressure subsystem and a latch hydraulic subsystem；
Included in each jacking and support hydraulic pressure subsystem by buncher drive duplex pump, 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, and the oil-out of the main oil pump of the duplex pump is connected to described two
First hydraulic fluid port of three-way magnetic valve, the second hydraulic fluid port of the two-bit triplet magnetic valve connects the oil inlet of the first check valve；
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 oil inlet, the first hydraulic fluid port of first solenoid directional control valve, described of the proportional pressure control valve
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；
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, described first of second solenoid directional control valve
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, and the oil-out of the gear pump is connected to described through the second check valve
The oil inlet of the first hydraulic fluid port of the 3rd solenoid directional control valve and the slotting formula overflow valve, the second hydraulic fluid port of the 3rd solenoid directional control valve
Four reverse oils of plugging pin oil cylinder are connected to through one of check valve of the hydraulic lock, the first unidirectional adjustable throttling
Mouthful, the 3rd hydraulic fluid port of the 3rd solenoid directional control valve through the hydraulic lock another check valve, described second unidirectional adjustable
Stream valve is connected to four positive hydraulic fluid ports of the plugging pin oil cylinder；
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 jacking cylinder has jacking cylinder displacement transducer；The oil-out of first balanced valve is connected with jacking first and presses
Force snesor, the oil-out of the second balanced valve is connected with jacking second pressure sensor；
There is support cylinder displacement transducer and support cylinder gravity sensor on the support cylinder；3rd balanced valve
Oil-out is connected with support first pressure sensor, and the oil-out of the 4th balanced valve is connected with support second pressure sensing
Device.
2. the fluid pressure drive device of super large jumbo according to claim 1, it is characterised in that：
Four jacking cylinders are fixed in the foundation ditch below super large jumbo, and the both sides outer wall of super large jumbo is approached
Tip position all around symmetrically connects the external part of the jacking cylinder；
Four plugging pin oil cylinders are respectively and fixedly installed at four angles of super large jumbo bottom, and external part is outside
Side；
Four support cylinders then correspond to four position distributions of the plugging pin oil cylinder in flat surface；The plugging pin oil cylinder is stretched out
End can be supported by the support cylinder jack-up just after stretching out.
3. the fluid pressure drive device of super large jumbo according to claim 1, it is characterised in that：On the return line
Cooler and filter are being serially connected with close to the position of fuel tank.
4. the fluid pressure drive device of super large jumbo according to claim 3, it is characterised in that：The fuel tank and entrance
The 4th stop valve is also associated between return line before the cooler.
5. the fluid pressure drive device of super large jumbo according to claim 1, it is characterised in that：The fuel tank has liquid
Position meter, liquid level relay, air filter and temperature sensor.
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| CN201510830304.5A CN105545845B (en) | 2015-11-25 | 2015-11-25 | A kind of fluid pressure drive device of super large jumbo |
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| CN201510830304.5A CN105545845B (en) | 2015-11-25 | 2015-11-25 | A kind of fluid pressure drive device of super large jumbo |
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| CN105545845B true CN105545845B (en) | 2017-06-06 |
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|---|---|---|---|---|
| CN106837905B (en) * | 2017-03-17 | 2018-02-16 | 合肥佳航机电设备有限公司 | A kind of synchronous eight cylinder hydraulic systems of shearing type lifting machine platform |
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| CN105545845A (en) | 2016-05-04 |
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