CN207158679U - A kind of Multipoint synchronous hydraulic jacking device based on VFC - Google Patents
A kind of Multipoint synchronous hydraulic jacking device based on VFC Download PDFInfo
- Publication number
- CN207158679U CN207158679U CN201720981616.0U CN201720981616U CN207158679U CN 207158679 U CN207158679 U CN 207158679U CN 201720981616 U CN201720981616 U CN 201720981616U CN 207158679 U CN207158679 U CN 207158679U
- Authority
- CN
- China
- Prior art keywords
- jack
- valve
- frequency
- vfc
- multipoint synchronous
- 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
Abstract
The utility model discloses a kind of Multipoint synchronous hydraulic jacking device based on VFC, including：Frame, electric appliance box, for placing the tool box of component, fuel tank, walking castor, at least one frequency control hydraulic drive unit and PLC, touch-screen；The frequency control hydraulic drive unit includes variable-frequency motor, frequency converter, overflow valve, reversal valve, balanced valve, pressure sensor, displacement transducer and jack.Multipoint synchronous hydraulic jacking device of the present utility model based on VFC is using Multipoint synchronous lifting VFC, solve makes coordinated multi-point as one man complete the difficult technical problem of high-precise synchronization lifting in one ultra-large type building of jacking in the prior art, high-precision can realize the functions such as multi-point, the synchronization of jacking up of big stroke, pushing tow, translation, supertronic.
Description
Technical field
It the utility model is related to a kind of Multipoint synchronous hydraulic jacking device based on VFC.
Background technology
At present, developing rapidly with China's communication, remake old bridge become more important with utilizing.Due to bridge top
Rising panning techniques has unrivaled superiority, and jacking translation engineering starts more and more to be applied.But with the epoch
Transition, building volume is increasing, and weight is also increasingly heavier, will particularly with the jacking translation of house, bridge long range
Seek also more and more higher.Manual pump merely, electrodynamic pump easily cause building tilt in the case of the load born is unbalanced,
And ensure without synchronization accuracy；The PWM valve part control pumping plant of small stroke can not meet the construction requirement of big stroke, and speed of application
Slowly, can not meet the needs of present.
Utility model content
The purpose of this utility model is to provide a kind of Multipoint synchronous hydraulic jacking device based on VFC.
To achieve the above object, the utility model uses herein below：
A kind of Multipoint synchronous hydraulic jacking device based on VFC, including：Frame, electric appliance box, for placing first device
The tool box of part, fuel tank, walking castor, at least one frequency control hydraulic drive unit, PLC and touch
Screen；The electric appliance box, tool box, fuel tank are arranged in frame, and the walking castor is arranged on bottom of the frame, and the touch-screen is set
Put in frame outer surface；The PLC is arranged in electric appliance box, the PLC, frequency control
Hydraulic drive unit is connected with touch-screen by industrial-controlled general line；
The frequency control hydraulic drive unit includes variable-frequency motor, frequency converter, overflow valve, reversal valve, balanced valve, pressure
Sensor, displacement transducer and jack；The frequency converter is connected to variable-frequency motor；The hydraulic oil pump and variable-frequency motor phase
Even, controlled by variable-frequency motor；The oil-out of the hydraulic oil pump is provided with overflow valve；The reversal valve is arranged on hydraulic oil pump and thousand
Between jin top, for will be input to after the hydraulic oil commutation after relief valve pressure regulating in jack；It is provided with by the jack
Displacement transducer, for detecting the current stroke of jack when jack rises or declines；In the cavity of resorption of the jack
Provided with balanced valve, for ensureing that jack all can pressurize while for controlling under object band load when jacking stops to optional position
Ensure the displacement accuracy control during declining during drop；Pressure sensor is additionally provided with oil circuit, it is current for detecting and feeding back
The oil pressure of oil circuit.
Further, overload relief valve is additionally provided with the pressurize intracavitary of the balanced valve, for protecting jack not occur
Overload.
Further, the pressure sensor is arranged on the oil circuit between jack and balanced valve.
The utility model has advantages below：
Multipoint synchronous hydraulic jacking device of the present utility model based on VFC is using Multipoint synchronous lifting frequency conversion control
System, solve makes coordinated multi-point as one man complete high-precise synchronization lifting in one ultra-large type building of jacking in the prior art
Difficult technical problem, high-precision can realize the functions such as multi-point, the synchronization of jacking up of big stroke, pushing tow, translation, supertronic.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the overall structure diagram of the Multipoint synchronous hydraulic jacking device of the present utility model based on VFC.
Fig. 2 is the top view of the Multipoint synchronous hydraulic jacking device of the present utility model based on VFC.
Fig. 3 is the hydraulic schematic diagram of the Multipoint synchronous hydraulic jacking device of the present utility model based on VFC.
Embodiment
In order to illustrate more clearly of the utility model, the utility model is done further with reference to preferred embodiment
It is bright.It will be appreciated by those skilled in the art that specifically described content is illustrative and be not restrictive below, should not be with this
Limit the scope of protection of the utility model.
Embodiment
As illustrated in fig. 1 and 2, it is that the structure of the Multipoint synchronous hydraulic jacking device of the present utility model based on VFC is shown
It is intended to.The Multipoint synchronous hydraulic jacking device based on VFC, including：Frame 1, the tool box 3 being arranged in frame 1
(set tool box 3 to be easy for scene and place the sensitive components such as displacement transducer), valve block assembly 5, fuel tank 6, it is arranged on frame 1
Walking castor 7, touch-screen 8, electric appliance box 2 (PLC is set in it), at least one frequency control hydraulic pressure of bottom
Driver element.PLC, frequency control hydraulic drive unit are connected with touch-screen 8 by industrial-controlled general line, this
Art personnel can realize connection according to needing to select prior art, will not be repeated here.
It is hydraulic schematic diagram as shown in Figure 3.The frequency control hydraulic drive unit includes variable-frequency motor 4, frequency converter 10, overflow
Flow valve 11, reversal valve 12, balanced valve 13, pressure sensor 14, displacement transducer 15 and jack 16.Frequency converter 10 is connected to change
Frequency motor 4.Hydraulic oil pump 9 is connected with variable-frequency motor 4, is controlled by variable-frequency motor 4, exports certain hydraulic oil.Hydraulic oil pump 9
Oil-out is provided with overflow valve 11, and hydraulic oil is through the pressure regulation of overflow valve 11.Reversal valve 12 be arranged on hydraulic oil pump 9 and jack 16 it
Between, hydraulic oil is input in jack 16 after the commutation of reversal valve 12 again after the pressure regulation of overflow valve 11, drives jack 16 to rise
Or decline.Displacement transducer 15 is provided with the side of jack 16, for detecting thousand when jack 16 rises or declined
The current stroke on jin top 16.Balanced valve 13 is provided with the cavity of resorption of jack 16, for ensureing that jack 16 arrives any position in jacking
All can pressurize when putting stopping.In addition, balanced valve 13 can also be used to control object band to carry decline, ensure the displacement during declining
Precision controlling.Pressure sensor 14 is additionally provided with oil circuit, for detecting and feeding back the oil pressure of current oil circuit, is preferably provided at thousand
Between jin top 16 and balanced valve 13.In addition, the pressurize intracavitary in balanced valve 13 is additionally provided with overload relief valve, for protecting jack
16 do not overload.
Generally, including four foregoing driver elements, between four driver elements on hardware composition without any
System, during practice of construction, four point position frequency conversion systems are easy to site operation.
The rate-determining steps of Multipoint synchronous hydraulic jacking device of the present utility model based on VFC are summarized as follows：Using
Frequency converter 10 controls variable-frequency motor 4, changes the rotating speed of variable-frequency motor 4 by adjusting frequency of supply, reaching makes hydraulic oil pump 9
The purpose of flow continuously adjustabe.It is equipped with the displacement accuracy that appropriate electronic control system can is accurately controlled system.Electronics
Control system is to realize the key of synchronization action, it be based on closed-loop control system theory using the displacement signal that weight moves as
Controlled parameter, pressure signal is as reference quantity caused by stress intracavitary of the weight in hydraulic jack 16.Gathered by sensor
These signals, transmit the signals to PLC, and PLC receives and handles these signals.
These uniformity signals of comparison operation are simultaneously compared with input permissible value in PLC.When discovery, certain control point has
During overproof possibility, PLC sends signal, allows the frequency converter 10 of the point to act, and hydraulic oil pump is closed, so as to limit
The hydraulic jack raising and lowering action of the fixed point.Equally, when finding that the signal that detects has the phenomenon of hysteresis, now also lead to
Cross frequency converter 10 send signals to open hydraulic oil pump 9 carry out corresponding position adjustments.It is exactly to pass through this in whole work process
It is a little to be accurately controlled action to complete the high-precise synchronization requirement in whole construction.
Unlike common pumping plant, balanced valve 13 is installed in frequency control hydraulic drive unit of the present utility model,
Balanced valve 13 is No leakage cone valve structure, and major function is the load pressure of balance jack 16, is made with the jacking oil for carrying decline
The unlikely decompression of cylinder glides, and immediately closes cavity of resorption No leakage, ensures that workpiece will not freely glide, makes jack 16 in power failure shape
State remains to reliably carry, and can guarantee that jack 16 in lifting all in oil-feed speed governing state.In addition, it is arranged on balanced valve 13
Pressurize intracavitary overload relief valve be used for protect jack 16 not overload.Pressed when the pressure in jack 16 exceedes to set up
During power, the valve can automatically turn on, and lay down too high oil pressure, make each load equalization of jack 16.
The advantages of Multipoint synchronous hydraulic jacking device of the present utility model based on VFC is：1) can be achieved to make weight
The synchronous rise and fall of big stroke, synchronization accuracy may be up to ± 0.2mm；2) variable frequency regulating speed control, control accuracy height are used；3)
Supporting PLC electrical controls, high-precision function of weighing can be achieved；4) individually point position design, quick action and stablize.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in of the present utility model
The row of protection domain.
Claims (3)
- A kind of 1. Multipoint synchronous hydraulic jacking device based on VFC, it is characterised in that including：Frame, electric appliance box, it is used for Place the tool box, fuel tank, walk castor, at least one frequency control hydraulic drive unit, PLC of component And touch-screen；The electric appliance box, tool box, fuel tank are arranged in frame, and the walking castor is arranged on bottom of the frame, described to touch Touch screen and be arranged on frame outer surface；The PLC is arranged in electric appliance box, the PLC, change Frequency modulation speed hydraulic drive unit is connected with touch-screen by industrial-controlled general line；The frequency control hydraulic drive unit includes variable-frequency motor, frequency converter, overflow valve, reversal valve, balanced valve, pressure sensing Device, displacement transducer and jack；The frequency converter is connected to variable-frequency motor；Hydraulic oil pump is connected with variable-frequency motor, by frequency conversion Motor control；The oil-out of the hydraulic oil pump is provided with overflow valve；The reversal valve is arranged between hydraulic oil pump and jack, For will be input to after the hydraulic oil commutation after relief valve pressure regulating in jack；Displacement sensing is provided with by the jack Device, for detecting the current stroke of jack when jack rises or declines；Balance is provided with the cavity of resorption of the jack Valve, for ensure jack jacking stop to optional position when all can pressurize and meanwhile for control object band carry decline when ensure Displacement accuracy control during decline；Pressure sensor is additionally provided with oil circuit, for detecting and feeding back the oil of current oil circuit Pressure.
- A kind of 2. Multipoint synchronous hydraulic jacking device based on VFC according to claim 1, it is characterised in that The pressurize intracavitary of the balanced valve is additionally provided with overload relief valve.
- A kind of 3. Multipoint synchronous hydraulic jacking device based on VFC according to claim 1, it is characterised in that institute Pressure sensor is stated to be arranged on the oil circuit between jack and balanced valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720981616.0U CN207158679U (en) | 2017-08-08 | 2017-08-08 | A kind of Multipoint synchronous hydraulic jacking device based on VFC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720981616.0U CN207158679U (en) | 2017-08-08 | 2017-08-08 | A kind of Multipoint synchronous hydraulic jacking device based on VFC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207158679U true CN207158679U (en) | 2018-03-30 |
Family
ID=61715362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720981616.0U Active CN207158679U (en) | 2017-08-08 | 2017-08-08 | A kind of Multipoint synchronous hydraulic jacking device based on VFC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207158679U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251911A (en) * | 2019-07-17 | 2019-09-20 | 北京东方永兴教学设备有限公司 | Wireless frequency conversion intelligent type electric hydaulic basketball stands |
| CN110792647A (en) * | 2019-12-05 | 2020-02-14 | 马鞍山瑞马钢构材料有限公司 | Automatic intelligent control hydraulic system for axial supporting force of foundation pit support |
| CN114775466A (en) * | 2022-05-27 | 2022-07-22 | 中交二航局第二工程有限公司 | Continuous beam bridge up-line type dismantling device and method |
| CN114837106A (en) * | 2022-05-27 | 2022-08-02 | 中交二航局第二工程有限公司 | Continuous beam bridge descending type dismantling device and method |
-
2017
- 2017-08-08 CN CN201720981616.0U patent/CN207158679U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251911A (en) * | 2019-07-17 | 2019-09-20 | 北京东方永兴教学设备有限公司 | Wireless frequency conversion intelligent type electric hydaulic basketball stands |
| CN110792647A (en) * | 2019-12-05 | 2020-02-14 | 马鞍山瑞马钢构材料有限公司 | Automatic intelligent control hydraulic system for axial supporting force of foundation pit support |
| CN114775466A (en) * | 2022-05-27 | 2022-07-22 | 中交二航局第二工程有限公司 | Continuous beam bridge up-line type dismantling device and method |
| CN114837106A (en) * | 2022-05-27 | 2022-08-02 | 中交二航局第二工程有限公司 | Continuous beam bridge descending type dismantling device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207158679U (en) | A kind of Multipoint synchronous hydraulic jacking device based on VFC | |
| US9234517B2 (en) | Pump control device, oil well with device and method | |
| CN108612340A (en) | A kind of large area building suspends and jacking system and its application method | |
| CA2767980C (en) | Intelligent online closed-loop balance adjusting system for pumping unit | |
| CN103701397A (en) | Maglev (Magnetic Levitation) molecular pump motor control device with electric power failure compensation function | |
| IT201800003793A1 (en) | DRILLING MACHINE EQUIPPED WITH A DEVICE FOR HANDLING THE DRILLING BATTERY WITH ELECTRIC BRAKING. | |
| CN104747516B (en) | Synchronous lifting control system for hydraulic cylinders | |
| KR101264661B1 (en) | The potential energy recovery apparatus of the hydraulic cylinder | |
| CN209177929U (en) | A kind of heavy double crossing type lifting apparatus hydraulic synchronization control loops | |
| CN204082718U (en) | The pylon hydraulic system for lifting of steady variable-speed | |
| CN103776076B (en) | Use the full-automatic continuous adjustable range hood of capacitance type sensor | |
| CN102942148B (en) | Leveling system for high-altitude operation platform by means of PWM (pulse-width modulation) control technology | |
| CN106956881A (en) | Compressor station apparatus for controlling of lifting, method and compressor station | |
| CN103806486B (en) | A kind of Double-wheel milling carriage arbor auto-feed control method, system and controller | |
| CN207064361U (en) | A kind of Multipoint synchronous sliding lifting hydraulic control jacking apparatus | |
| CN207061743U (en) | A kind of Multipoint synchronous hydraulic jacking device based on pulse-width controlled | |
| CN205331131U (en) | Variable frequency hydraulic pump station | |
| CN115108481A (en) | Self-balancing tower crane control system | |
| CN102421690A (en) | A control system for a hydraulic elevator apparatus | |
| CN107781056A (en) | A kind of intelligent piston | |
| CN203098483U (en) | Control system of hydraulic system | |
| JP2015132335A (en) | Hydraulic press and hydraulic driving system | |
| CN205214624U (en) | Podium is used in ideological and political education | |
| CN209556427U (en) | A kind of large area building suspends and jacking system | |
| CN206111839U (en) | Automatic adjustment film thickness's tilting pad thrust bearing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |