CN205349892U - Electrical system of drive super large jumbo - Google Patents
Electrical system of drive super large jumbo Download PDFInfo
- Publication number
- CN205349892U CN205349892U CN201520951533.8U CN201520951533U CN205349892U CN 205349892 U CN205349892 U CN 205349892U CN 201520951533 U CN201520951533 U CN 201520951533U CN 205349892 U CN205349892 U CN 205349892U
- Authority
- CN
- China
- Prior art keywords
- valve
- jacking
- support
- hydraulic
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses an electrical system of drive super large jumbo, its characterized in that: including main control unit and electric machine control board, main control unit with the electric machine control board is connected, the electric machine control board is connected with four bunchers among the hydraulic system through four servo amplifier circuit respectively, supply pressure 3 is all connected with a supply pressure sensor, proportion overflow valve, two three solenoid valve, jacking cylinder displacement sensor, a jacking pressure sensor, the 2nd pressure sensor of jacking, support cylinder displacement sensor, support cylinder gravity sensor, a support pressure sensor, the 2nd pressure sensor of support, a supply pressure 1, the 2nd supply pressure 1, first stop valve, second stop valve, third stop valves of supporting among the hydraulic braking subsystem to four jacking. The utility model discloses can carry out the accurate control to the lifting process of super large jumbo.
Description
Technical field
This utility model relates to a kind of hydraulic test, particularly relates to a kind of electric-control system driving super large jumbo.
Background technology
In impeller dynamic test, one of them important test event is to be placed into flow deflector in ultra-large type water tank to test.This superhuge water tank, wide 3 meters, long 6 meters, weigh 132 tons when storing full water.In test process, water tank may require that in the flat surface from surface uplift to 3.2m and falls after rise to ground from flat surface, and by water tank big and heavy for this span from surface uplift to plane on be very difficult thing, and require in the process promoted, water tank is not allow for skew, otherwise water tank will be blocked by track, it is impossible to continues lifting, even can cause the damage of water tank.
Later, someone expected the lifting that utilizes screw body to promote this super large jumbo.Although utilizing screw body to carry out lifting have the advantage that precision is high, it can be avoided that super large jumbo does not offset in lifting process, but the power that screw body can be provided by 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.
Therefore, applicant expects utilizing hydraulic way to carry out this lifting super large jumbo.In order to realize the accurate control in lifting process, it is necessary to a kind of electric-control system.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of electric-control system driving super large jumbo, to realize the accurate control to super large jumbo lifting process, with the deficiency overcoming prior art to exist.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that:
A kind of electric-control system driving super large jumbo, includes master controller and motor control panel；Described master controller and described motor control panel connect, and described motor control panel is connected with four bunchers in hydraulic system respectively through four servo amplifying circuits；The first charge oil pressure sensor, proportional pressure control valve, two-bit triplet electromagnetic valve, jacking cylinder displacement transducer, jacking the first pressure transducer, jacking the second pressure transducer, support cylinder displacement transducer, support cylinder gravity sensor in four jackings and support hydraulic pressure subsystem, support the first pressure transducer, support the second pressure transducer, the first solenoid directional control 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 in latch hydraulic subsystem, the 3rd solenoid directional control valve, slotting formula overflow valve are all connected with master controller.
Described master controller is also connected with liquid level sensor, temperature sensor, cooler.
Described master controller is also connected with the 4th stop valve.
Described master controller is also connected with operation interface and man machine interface.
Adopting technique scheme, the lifting process of super large jumbo can accurately be controlled by this utility model.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail:
Fig. 1 is the mechanical device structure schematic diagram of equipment；
Fig. 2 is the hydraulic schematic of equipment；
Fig. 3 is the hydraulic station structure schematic diagram of equipment；
Fig. 4 is A-A direction view in Fig. 3；
Fig. 5 is electric-control system schematic diagram of the present utility model.
Detailed description of the invention
The electric-control system of driving super large jumbo of the present utility model, is applied in the lifting equipment of super large jumbo.For making to understand this utility model creation with those skilled in the art know that, first the lifting equipment of super large jumbo is described in detail.
Lifting equipment is made up of machinery, hydraulic system and electric-control system.Super large jumbo of the present utility model is for the super large heavy type water tank mentioned by background technology.
As it is shown in figure 1, described machinery includes 20, four support cylinders 21 of four jacking cylinders and four plugging pin oil cylinder 22.
Wherein, four jacking cylinders 20 are fixed in the foundation ditch 01 below water tank 1100.The both sides outer wall of water tank 1100 has all around been symmetrically distributed four sidewall engaging lugs 1101 close to tip position, and jacking cylinder 20 is positioned at the lower section of sidewall engaging lug 1101.The external part of jacking cylinder 20 is connected on sidewall engaging lug 1101.
Four plugging pin oil cylinder 22 are respectively and fixedly installed to four angles place bottom water tank 1100, and external part is all towards outside, and fixing end is connected to also by support bar 1102 on the bottom engaging lug 1103 of centre of water tank bottom.Such structure makes plugging pin oil cylinder 22 be firmly secured to four angles bottom water tank 10.
The position distribution of four support cylinder 21 then corresponding four plugging pin oil cylinder 22 is in flat surface 02.The external part of plugging pin oil cylinder 22 can be supported by support cylinder 21 jack-up after stretching out just.
The working method of this jacking machinery is:
Water tank jacking process: four jacking cylinders 20 by water tank 1100 from ground 03 jacking to flat surface 02, then four plugging pin oil cylinder 22 are protruding respectively, then, it is positioned at the support cylinder 21 below plugging pin oil cylinder 22 to rise, until supporting plugging pin oil cylinder 22, then water tank 1100 is continued up the little segment distance of jacking (about 40mm) by support cylinder 21 again, and finally supports 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 slightly upward for water tank 1100 jacking (about upwards jacking 2-3mm), make plugging pin oil cylinder 22 upwardly away from support cylinder 21, then plugging pin oil cylinder 22 is retracted, subsequently jacking cylinder 20 is shortened so that water tank slowly declines until falling after rise to ground 03.
As in figure 2 it is shown, hydraulic system, including 1, four jackings of fuel tank and 201,202,203,204 and latch hydraulic subsystem 300 of support hydraulic pressure subsystem.
Often group jacking and support hydraulic pressure subsystem in all include driven by buncher 7 duplex pump 8, two-bit triplet electromagnetic valve 32, proportional pressure control valve the 12, first solenoid directional control valve the 161, second solenoid directional control valve the 162, first stop valve the 311, second stop valve the 312, the 3rd stop valve the 313, first balanced valve the 291, second balanced valve the 292, the 3rd balanced valve the 293, the 4th balanced valve 294, accumulator 26.
Wherein, the oil-in of duplex pump 8 is connected to fuel tank 1 through the first ball valve 151, and the oil-out of the main oil pump of duplex pump 8 is connected to the first hydraulic fluid port of two-bit triplet electromagnetic valve 32, and the second hydraulic fluid port of two-bit triplet electromagnetic valve 32 connects the oil-in of the first check valve 111.
The oil-out of the auxiliary oil pump of duplex pump 8 is directly connected to the oil-in of the first check valve 111, and the oil-out of the first check valve 111 is connected respectively to the first hydraulic fluid port of the oil-in of proportional pressure control valve 12, the first hydraulic fluid port of the first solenoid directional control valve 161, the second solenoid directional control valve 162.
The oil-out of the 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, and 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 balanced valve 292.First balanced valve 291 is also connected to the oil-in of the first stop valve 311.Second balanced valve 292 is also connected to the oil-in of the second stop valve 312.Jacking cylinder 20 has jacking displacement transducer 301.The oil-out of the first balanced valve 291 and the oil-out of the second balanced valve 292 have been also respectively connected with jacking the first pressure transducer 142 and jacking the 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 balanced valve 293, and 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 balanced valve 294.4th balanced valve 294 is connected to accumulator 26 also by the 3rd stop valve 313.Support cylinder 21 has bracing displacement sensor 302 and gravity sensor 303.The oil-out of the 3rd balanced valve 293 and the oil-out of the 4th balanced valve have been also respectively connected with support the first pressure transducer 144 and have supported the second pressure transducer 145.
The 3rd hydraulic fluid port of two-bit triplet electromagnetic valve 32 in four jackings and support hydraulic pressure subsystem 201,202,203,204, the oil-out 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 first stop valve 311 oil-out, the oil-out of the second stop valve 312 connects back to fuel tank 1 each through return line.
In this utility model, the electromagnetic valve of duplex pump 8 must not electricity, only main oil pump work；Electromagnetic valve obtains electric, and main oil pump and auxiliary oil pump work simultaneously.
The working method of jacking and support hydraulic pressure subsystem is: buncher 7 drives duplex pump 8 to work, the first hydraulic fluid port and the connection of the second hydraulic fluid port when two-bit triplet electromagnetic valve 31, the main oil pump of duplex pump 8 and auxiliary oil pump simultaneously by the first check valve 111 to jacking and support hydraulic pressure subsystem fuel feeding, the first hydraulic fluid port and the cut-off of the second hydraulic fluid port when two-bit triplet electromagnetic valve 31, when the first hydraulic fluid port and the connection of the 3rd hydraulic fluid port, only the auxiliary oil pump of duplex pump 8 by the first check valve 111 to jacking and support hydraulic pressure subsystem 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 electromagnetic valve 31 and the 3rd hydraulic fluid port.
Proportional pressure control valve 12 is then for realizing changing the pressure of the hydraulic oil entering jacking and support hydraulic pressure subsystem.
When the first solenoid directional control valve 161 is when connecting, being used for driving jacking cylinder 20 to work, at this moment the second electromagnetic switch electromagnetic valve 162 ends, and support cylinder 21 does not work.When the second electromagnetic switch electromagnetic valve 162 is when connecting, being used 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 and the connection of the second hydraulic fluid port of the first solenoid directional control valve 161, when 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, drives jacking cylinder 20 to shorten, is used for the water tank 1100 that lands.When the first hydraulic fluid port and the connection of the 3rd hydraulic fluid port of the first solenoid directional control valve 161, when the second hydraulic fluid port and the connection of 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 and the connection of the second hydraulic fluid port of the first solenoid directional control valve 162, when 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 support cylinder 21, drives support cylinder 21 to shorten, for separating with water tank.When the first hydraulic fluid port and the connection of the 3rd hydraulic fluid port of the first solenoid directional control valve 162, when the second hydraulic fluid port and the connection of 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, is used for supporting water tank.
3rd stop valve 313 is generally in cut-off state, after support cylinder 21 supports water tank, the 3rd stop valve 313 is opened connection so that utilize accumulator 26 that support cylinder 21 is carried out pressurize.
First stop valve 311 and the second stop valve 312 are generally also in cut-off state, when support cylinder 21 is operated, also pursuit movement is done due to jacking cylinder 20, at this moment owing to the first solenoid directional control valve 161 is in cut-off state, for avoiding jacking cylinder 20 that emptying phenomenon occurs, need for this to open the first stop valve 311 and the second stop valve 312 so that jacking cylinder 20 connects with fuel tank 1, it is to avoid emptying phenomenon.
Latch hydraulic subsystem 300 includes gear pump the 10, the 3rd solenoid directional control valve 163 driven by motor 9, slotting formula overflow valve 13, hydraulic lock 19, first unidirectional adjustable throttling the 271, second unidirectional adjustable throttling 272.Hydraulic lock 19 is made up of two check valves, the forward hydraulic fluid port mutual induction of two check valves in hydraulic lock 19, as long as the forward hydraulic fluid port of one of them check valve has pressure to be opened, the pressure that the forward hydraulic fluid port of another one check valve also can be sensed simultaneously is opened, and namely hydraulic lock 19 has two check valves and opens the function simultaneously closed off simultaneously.
The oil-in of gear pump 10 is connected to fuel tank 1 through the second ball valve 152, the oil-out of gear pump 10 is connected to the first hydraulic fluid port of the 3rd solenoid directional control valve 163 and the oil-in of slotting formula overflow valve 13 through the second check valve 112, second hydraulic fluid port of the 3rd solenoid directional control valve 163 is connected to the reverse hydraulic fluid port of four plugging pin oil cylinder 22 through one of them check valve of hydraulic lock 19, the first unidirectional adjustable throttling 271, and the 3rd hydraulic fluid port of the 3rd solenoid directional control valve 163 is connected to the forward hydraulic fluid port of four plugging pin oil cylinder 22 through another check valve of hydraulic lock 19, the second unidirectional adjustable throttling 272.
4th hydraulic fluid port of the 3rd solenoid directional control valve 163 and the oil-out of slotting formula overflow valve 13 connect back to fuel tank 1 by return line.
The oil-out of the first unidirectional adjustable throttling 271 and the oil-out of the second unidirectional adjustable throttling 272 are also associated with Pressure gauge 17.The oil-out of the second check valve 112 is also associated with fuel feeding the second pressure transducer 146 and Pressure gauge 17.
The working method of this latch hydraulic subsystem 300 is: gear pump 10 to latch hydraulic subsystem 300 fuel feeding, inserts formula overflow valve 13 for being set into the oil pressure of latch hydraulic subsystem 300 under motor 9 drives.
3rd solenoid directional control valve 163 also has two kinds of getting types: when the first hydraulic fluid port and the connection of the second hydraulic fluid port of the 3rd solenoid directional control valve 163, when 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 four plugging pin oil cylinder 22, drives plugging pin oil cylinder 22 to retract to separate with support cylinder 21.When the first hydraulic fluid port and the connection of the 3rd hydraulic fluid port of the 3rd solenoid directional control valve 163, when the second hydraulic fluid port and the connection of the 4th hydraulic fluid port, hydraulic oil then enters from the forward hydraulic fluid port of four plugging pin oil cylinder 22, drives plugging pin oil cylinder 22 to extend so as to be seated on support cylinder 21.
And when the 3rd electromagnetic valve reversal valve 163 ends, in hydraulic lock 19, two check valves all can end, so that the hydraulic oil of plugging pin oil cylinder 22 piston both sides will not flow, so that plugging pin oil cylinder 22 keeps state.
Return line is connected to cooler 23 and filter 24 close to the location strings of fuel tank 1.
Fuel tank 1 has liquidometer 3, liquid level relay 4, air filter 5 and temperature sensor 6.
It addition, the oil-out of the second ball valve 152 and enter and be also associated with the 4th stop valve 314 between the return line before cooler 23.4th stop valve 314 generally ends, and synchronizes to open when first stop valve the 311, second stop valve 312 is opened so that jacking cylinder 20 connects 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 duplex pumps driven by buncher 78, filters 24 constitute Hydraulic Station 400.
This Hydraulic Station 400 is arranged on two layers of steelframe 401, wherein fuel tank 1 is arranged on the top layer 402 of steelframe 401, the gear pump 10 that driven by motor 9,23,4 duplex pumps driven by buncher 78 of cooler are disposed side by side on the bottom 411 of steelframe 401, and 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.Cooler 23 is communicated to filter 24 also by oil pipe.Cooler 23 is forced air cooler.
Being internally provided with liquidometer 3 at fuel tank 1, multiple Pressure gauges 17 are then arranged on the base side of fuel tank 1.
The top of fuel tank 1 is provided with pouring orifice 403 and the air filter 5 of plunger closure.The sidewall of fuel tank 1 is provided with maintenance window 404.Fuel tank 1 has bottom an end wall fuel outlet 405 blocked by plunger.
Adopting said structure, fuel tank 1 is arranged on the top of 20,4 duplex pumps 8 of gear pump, accordingly even when gear pump 10, duplex pump 8 do not work, fuel tank also can give the pressure that system is certain, it is possible to meets the partial pressure demand of system, has the effect of energy-saving and emission-reduction.
It addition, the tip position at the bottom of steelframe 402 is additionally provided with rosette 406.
For convenience of lifting, the two ends of steelframe 401 have lifting earhole 407.
As it is shown in figure 5, in electric-control system, core component has master controller and motor control panel.Master controller and motor control panel connect, and motor control panel is also connected with 4 bunchers in hydraulic system respectively through 4 servo amplifying circuits, for realizing the rotating speed of each buncher is controlled, and and then control the work of each duplex pump.
The first charge oil pressure sensor in four jackings and support hydraulic pressure subsystem, proportional pressure control valve, two-bit triplet electromagnetic valve, jacking cylinder absolute displacement transducer, jacking the first pressure transducer, jacking the second pressure transducer, support cylinder mimotope displacement sensor, support cylinder gravity sensor, support the first pressure transducer, support the second pressure transducer, first solenoid directional control valve, second solenoid directional control valve, first stop valve, second stop valve, 3rd stop valve is all connected with master controller.
The second charge oil pressure sensor in latch hydraulic subsystem, the 3rd solenoid directional control valve, slotting formula overflow valve 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 utility model, the method for flow control and pressure compensation is adopted to realize Synchronization Control.In order to reduce error, system adopts band load Starting mode.Master controller obtains the displacement of all oil cylinders, pressure, gravity, temperature data in real time, and set each displacement of the subsystem of one of them jacking and support hydraulic pressure, pressure, gravimetric data (according to real work demand arrange) be benchmark data, and the whole travel displacement of each oil cylinder is carried out differential, segment movement.Segmented compensation (guarantees stable movement).And each displacement in other jacking and support hydraulic pressure subsystem, pressure, gravimetric data are compared in real time with benchmark data, and according to showing that difference is analyzed and stepping, then the positive and negative offset in each interval is calculated (just for accelerating by shelves, bear as slowing down or stopping), respectively to the electric machine speed regulation in other jacking and support hydraulic pressure subsystem and proportional pressure control valve pressure regulation so that each jacking cylinder or support cylinder remain synchronization.When additionally group oil cylinder error is more than allowable error intermediate value, seed oil cylinder adopts the auxiliary pump surging repairing mode of main pump fuel feeding, and seed oil cylinder is quickly caught up with；When master cylinder lags behind seed oil cylinder.Master cylinder adopts the auxiliary pump surging repairing mode of main pump fuel feeding, and master cylinder is quickly caught up with.Owing to being closed loop servo system, the impact of oil temperature, gravity, oil cylinder and pump volumetric efficiency will not be subject to.
Being operated by interface and system can be operated by man machine interface, data monitoring, parameter adjustment (according to authority, adjust different parameters), information alert, text is reported to the police, failure reset.It is operated the buncher in system, motor and each valve controlling.
The all of analog quantity digital quantity of native system transmits each through network, and transmission speed is exceedingly fast, and capacity of resisting disturbance is extremely strong, system stability.
By foregoing detailed description it can be seen that this utility model has the advantage that super large jumbo is smoothly smoothly lifted to flat surface from ground.
Claims (4)
1. the electric-control system driving super large jumbo, it is characterised in that: include master controller and motor control panel；Described master controller and described motor control panel connect, and described motor control panel is connected with four bunchers in hydraulic system respectively through four servo amplifying circuits；The first charge oil pressure sensor, proportional pressure control valve, two-bit triplet electromagnetic valve, jacking cylinder displacement transducer, jacking the first pressure transducer, jacking the second pressure transducer, support cylinder displacement transducer, support cylinder gravity sensor in four jackings and support hydraulic pressure subsystem, support the first pressure transducer, support the second pressure transducer, the first solenoid directional control 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 in latch hydraulic subsystem, the 3rd solenoid directional control valve, slotting formula overflow valve are all connected with master controller.
2. the electric-control system of driving super large jumbo according to claim 1, it is characterised in that: described master controller is also connected with liquid level sensor, temperature sensor, cooler.
3. the electric-control system of driving super large jumbo according to claim 1, it is characterised in that: described master controller is also connected with the 4th stop valve.
4. the electric-control system driving super large jumbo according to claims 1 to 3 any claim, it is characterised in that: described master controller is also connected with operation interface and man machine interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951533.8U CN205349892U (en) | 2015-11-25 | 2015-11-25 | Electrical system of drive super large jumbo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951533.8U CN205349892U (en) | 2015-11-25 | 2015-11-25 | Electrical system of drive super large jumbo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349892U true CN205349892U (en) | 2016-06-29 |
Family
ID=56166474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520951533.8U Active CN205349892U (en) | 2015-11-25 | 2015-11-25 | Electrical system of drive super large jumbo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205349892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257613A (en) * | 2015-11-25 | 2016-01-20 | 上海电气液压气动有限公司 | Electric control system for driving super-large heavy equipment |
| CN106837905A (en) * | 2017-03-17 | 2017-06-13 | 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 |
-
2015
- 2015-11-25 CN CN201520951533.8U patent/CN205349892U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257613A (en) * | 2015-11-25 | 2016-01-20 | 上海电气液压气动有限公司 | Electric control system for driving super-large heavy equipment |
| CN106837905A (en) * | 2017-03-17 | 2017-06-13 | 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105257614B (en) | A kind of hydraulic jack high-precise synchronization control complexes of super large jumbo | |
| WO2017071027A1 (en) | Multi-cylinder synchronized, power-saving, high-efficiency hydraulic lifting/lowering system and method | |
| CN108569631B (en) | High-precision hydraulic synchronization system for large tower crane joint lifting and control method | |
| CN102173363B (en) | Jacking structure of tower crane and hydraulic system and jacking method thereof | |
| CN201722676U (en) | Hydraulic lifting system of self-installing oil production platform | |
| CN205190395U (en) | Hydraulic cylinder high -precision synchronization control integrated equipment of super large jumbo | |
| CN205190393U (en) | Hydraulic drive device of super large jumbo | |
| CN205349892U (en) | Electrical system of drive super large jumbo | |
| CN207061745U (en) | A kind of hydraulic power unit of three-dimensional adjusting machine | |
| CN106884833A (en) | A kind of hydraulic servo synchronization system | |
| CN208037918U (en) | Multi-station synchronous lift control system for aircraft lifting and landing | |
| CN105545845B (en) | A kind of fluid pressure drive device of super large jumbo | |
| CN107725510A (en) | The synchronous leveling control oil circuit for driving small loop wheel machine supporting leg | |
| CN105257613A (en) | Electric control system for driving super-large heavy equipment | |
| CN203614479U (en) | Tundish lifting hydraulic device with high synchronization accuracy | |
| CN208221215U (en) | A kind of bolt-type ocean lifting platform synchronization hydraulic system | |
| CN205918670U (en) | Beat sign indicating number hydraulic press hydraulic control system | |
| CN105275903B (en) | A kind of oil cylinder high-precise synchronization control hydraulic system of super large jumbo | |
| CN207246145U (en) | The oil cylinder high-precise synchronization control hydraulic system of super large jumbo | |
| CN205190392U (en) | Support cylinder hydraulic system of super large jumbo | |
| CN206636857U (en) | A kind of axial force of the supports numerical control hydraulic device | |
| CN205190389U (en) | Bolt hydro -cylinder system with self -locking function | |
| CN106640825A (en) | Supporting axial force computer numerical control hydraulic device and frequency conversion control method thereof | |
| CN105351265B (en) | A kind of rigid passive volume synchronous hydraulic control system of Multi-cylinder | |
| CN205190375U (en) | Pressure adjustable hydraulic drive system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |