CN106192964A - Jacking system load is reallocated technical method online - Google Patents
Jacking system load is reallocated technical method online Download PDFInfo
- Publication number
- CN106192964A CN106192964A CN201610621901.1A CN201610621901A CN106192964A CN 106192964 A CN106192964 A CN 106192964A CN 201610621901 A CN201610621901 A CN 201610621901A CN 106192964 A CN106192964 A CN 106192964A
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- Prior art keywords
- load
- control unit
- climbing
- unit
- gear
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/44—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with self-contained electric driving motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The present invention relates to a kind of jacking system load reallocate online technical method, for jack-up unit electric gear teeth bar type up-down system；Each main chord tube of jack-up unit spud leg is installed and is overlapped lifting unit more, and each lifting unit configuration frequency conversion motor, frequency conversion motor drives climbing gear by reduction box；Electric-control system motor control unit is the converter that the configuration of each frequency conversion motor is independent；Central control unit real time on-line monitoring all climbing gears institute is loaded with platform inclination degree, and judges platform safety situation；Central control unit is with safety as principle, with platform inclination degree as constraints, to regulate climbing gear load as target；When climbing gear stand under load degree exceedes load early warning value and meets platform inclination condition, central control unit output control signal gives the converter of the motor control unit that this climbing gear is corresponding, realize climbing gear load to reallocate online, make all climbing gear stands under load on same main chord tube all in set point.
Description
Technical field
The present invention relates to the jack-up unit electric gear teeth bar type up-down system of a kind of marine engineering equipment, especially one
Kind of jacking system load is reallocated technical method online.
Background technology
Electric gear teeth bar type up-down system is widely used in English truss spud leg jack-up unit, and each spud leg typically fills
There are 18 set lifting units, equipped with 6 set lifting units on the most each main chord tube.When carrying out lifting platform, 6 on each main chord tube
Individual lifting unit climbing gear can be engaged motion with the tooth bar on main chord tube.But, due to rigging error, mismachining tolerance,
The factor such as tooth surface abrasion, External force interference affects, and 6 lifting unit climbing gears on each main chord tube are difficult to nibble with tooth bar simultaneously
Close or engagement time asynchronous, this generates load non-uniform phenomenon.6 lifting units on the most each main chord tube climb tooth
Wheel, carries inconsistent, and this will cause safety problem.So one requisite function of control system of jacking system is exactly
Realize platform load to redistribute between different lifting units, reach equilibrium within the specific limits.
Current practice or the load reallocation technology mentioned in the literature mainly have a following two:
1. torque sensor is installed at jacking system climbing gear and monitors climbing gear stand under load in real time, if certain tooth that climbs being detected
Wheel load exceedes setting value, and jacking system will stop；Operator start " load reallocation " button on console, and system will
It is automatically adjusted the step-by-step movement disc brake device tightness being installed on motor output shaft to control to export moment of torsion, thus realizes
Load is reallocated；Also brake gear pine can manually be regulated according to operating instruction by operator to corresponding lifting unit
Tight degree realizes load reallocation.
2. climbing gear stand under load situation is judged, when a certain climbing being detected by converter monitoring frequency conversion motor output moment of torsion
When gear load exceedes setting value, jacking system stops；Operator enable standby variable frequency device, the electricity corresponding to this climbing gear
Machine carries out frequency adjustment, reduces its output moment of torsion and realizes load reallocation.
In prior art, the first belongs to the method that current jacking system equipment vendor is commonly used, and Technical comparing is ripe.But
It is, when realizing load reallocation, to need to stop jacking system.Stopping to jacking system when pressing " stopping " button, climb tooth
The contact condition of wheel and rack has occurred and that change.Now, then carry out load reallocation have been out regulation according to.Therefore
This load reallocation mode is a kind of coarse adjustment, is difficult to relatively accurately control climbing gear stand under load.It addition, at climbing gear
Installing torque sensor, need to process at climbing gear center through hole, this is unfavorable to the intensity of climbing gear.
The second belongs to the technology published, and has no and used on product.But this load control method is to moment of torsion
Regulating effect is the best, because its work process is similar to first kind of way: when system detects that a certain climbing gear load exceedes
After setting value, jacking system stops, and is adjusted corresponding lifting unit electric machine frequency the most again.It should be clear that at jacking system
In stopped process, climbing gear is the most altered as the engagement of spud leg tooth bar.When starting standby variable frequency device to this lifting
When the frequency conversion motor that unit is corresponding carries out frequency regulation, load reallocation effect also can be had a greatly reduced quality.
Summary of the invention
It is an object of the invention to provide a kind of jacking system load to reallocate online technical method, this technical method is by adopting
With frequency conversion control technique, on-line checking jacking system climbing gear load, need not to stop under jacking system state the most right
The lifting unit output moment of torsion of overload accurately controls, and rapidly the climbing gear load on same main chord tube is carried out load
Reallocation, it is ensured that jacking system work safety.
For achieving the above object, the technical scheme is that a kind of jacking system load is reallocated technology online, be used for
Electric gear teeth bar type up-down system, this electric gear teeth bar type up-down system include central control unit, motor control unit,
Stake limit control unit and lifting unit.One solid pile element of a spud leg main chord tube outfit of truss leg jack-up unit, one
Installing on individual solid pile element and overlap lifting unit more, each lifting unit configuration frequency conversion motor, frequency conversion motor is driven by reduction box
Climbing gear, motor control unit is the converter that the configuration of each frequency conversion motor is independent；Central control unit with safety as principle,
With platform inclination degree as constraints, to regulate climbing gear load as target；Described central control unit real-time online is supervised
Survey all climbing gear stand under load degree and platform inclined degree, exceed load early warning value when climbing gear institute is loaded and meet flat
During platform inclined degree, described central control unit output control signal gives the frequency conversion of the motor control unit that this climbing gear is corresponding
Device, carries out load to the frequency conversion motor that this climbing gear is corresponding and reallocates online, and make on same spud leg main chord tube all climbs
Rise gear loaded all in set point.
Described climbing gear degree loaded includes load shutdown value and load early warning value；When in multiple climbing gears at least
When the load of one climbing gear exceedes load shutdown value, central control unit sends warning and makes electric gear teeth bar type up-down
System-down；Operator manually regulate the frequency converter frequency that this climbing gear is corresponding, it is achieved manual load is reallocated, the most again
Secondary startup electric gear teeth bar type up-down system.
Described truss leg jack-up unit inclined degree includes platform inclination shutdown value, platform inclination alarming value and platform
Tilting early warning value, inclined degree is as the constraints implementing load reallocation；When truss leg jack-up unit inclination angle surpasses
Crossing platform inclination shutdown value, central control unit automatic alarm also makes electric gear teeth bar type up-down system-down；Operator
More controlling leveling, i.e. under ignoring inclination warning function state, manually lift single pile, be up to the standard requirement；Work as purlin
Frame spud leg jack-up unit inclination angle exceedes platform inclination alarming value and is not up to shutdown value, and operator manually carry out single pile
Lifting, be up to the standard requirement；It is not up to alarming value when truss leg jack-up unit inclination angle exceedes platform inclination early warning value, in
Centre control unit runs automatic leveling program, and be up to the standard requirement；
The invention has the beneficial effects as follows:
The jacking system load of present invention technical method of reallocating online can make same main chord tube all climbing gears stand under load all exist
Set point.This technology is with safety as principle, with platform inclination degree as constraints, to regulate climbing gear stand under load as mesh
Mark.Climbing gear degree loaded is divided into load shutdown value and load early warning value；Load shutdown value characterizes this climbing gear
In the hole, it is necessary to stop jacking system work；Load early warning value is the frequency conversion that control system is corresponding to this climbing gear
Motor carries out the essential condition that load is reallocated online.Platform inclination degree is divided into platform inclination shutdown value, platform inclination report
Alert value and platform inclination early warning value, inclined degree is as the constraints implementing load reallocation
The present invention is embodied in speed, and soon and precision is high.Owing to system real-time online is adjusted climbing gear institute is loaded,
Need not shut down, therefore load reallocation speed is fast；Furthermore, the foundation of load control is exactly current contact condition, therefore load is again
Distribution precision is high.
Accompanying drawing explanation
Fig. 1 is that in embodiment, lifting unit configuration frequency conversion motor is connected corresponding diagram with converter；
Fig. 2 is load reallocation system flow chart in embodiment；
Fig. 3 is lifting unit layout drawing on main chord tube；
Fig. 4 is that lifting unit forms schematic diagram.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1, shown in 3,4, a kind of jacking system load is reallocated technical method online, for electric gear rack type liter
Fall system.This electric gear teeth bar type up-down system mainly includes that central control unit, motor control unit (comprise converter
14), stake limit control unit, lifting unit etc..One spud leg main chord tube 3 of truss leg jack-up unit is equipped with a solid stake list
Unit 2, a solid pile element 2 is installed and overlaps lifting unit, as a example by this sentences six lifting units of installation more.
As shown in Figure 4, lifting unit comprises frequency conversion motor 13, reducing gear 12, climbing gear 11.Six lifting units
When A1, B1, C1, A2, B2, C2 carry out lift work on spud leg main chord tube 3, six climbing gears institute is loaded to be not quite similar,
And real-time change.As a example by this main chord tube, system is the most consistent to the control mode of all main chord tubes.
The jacking system load of the present invention is reallocated technology online, each lifting unit configuration frequency conversion motor 13, Mei Gebian
Frequently motor configures independent converter 14, sees Fig. 1.
Described a kind of jacking system load is reallocated technology online, and by climbing gear stepping loaded, separation is distinguished
It is defined as load shutdown value and load early warning value.It is in the hole that load shutdown value characterizes this climbing gear, it is necessary to stops rising
Fall system works；Load early warning value is that control system carries out load to the frequency conversion motor that this climbing gear is corresponding and reallocates online
Essential condition.
Described a kind of jacking system load is reallocated technology online, and by platform inclination degree stepping, separation defines respectively
For platform inclination shutdown value, platform inclination alarming value and platform inclination early warning value.Platform inclination shutdown value characterization platform is in danger
Danger state, it is necessary to stop jacking system work；Platform inclination alarming value characterization platform is in heeling condition and automatic leveling journey
Sequence is not the most by its leveling, but is also unlikely to danger occur, and operator can carry out manual shut-down, it is also possible to continues to run with lifting
System；Platform inclination early warning value characterization platform is in heeling condition, and automatic leveling program brings into operation.
Described a kind of jacking system load is reallocated technology online, realizes electric gear rack type by frequency conversion control technique
The detection of jacking system real-time online and regulatory function, make same main chord tube all climbing gears stand under load all at set point.This skill
Art is with safety as principle, with platform inclination degree as constraints, to regulate climbing gear stand under load as target.The invention provides
A kind of implementation method, concrete technical scheme is shown in Fig. 2.
Embodiment:
Such as Fig. 1, shown in 2, install as a example by six lifting units by a main chord tube, respectively A1, B1, C1, A2, B2, C3；Each
Lifting unit configuration frequency conversion motor, each frequency conversion motor configures independent converter.
(1) PLC of central control unit sends instruction in real time, detects in six lifting units A1, B1, C1, A2, B2, C2
Climbing gear stand under load degree.
(2) if certain or multiple load exceed load shutdown value and persistently sets the time in six climbing gears, in
Centre control unit sends warning and makes electric gear teeth bar type up-down system-down；Now, operator can manually regulate right
The frequency converter frequency answered, it is achieved manual load is reallocated, and is then again started up electric gear teeth bar type up-down system.If this spud leg
On main chord tube, all climbing gear load are all not less than load shutdown value, and system will determine that whether platform inclination angle exceedes load and stop
Machine value.
Note: if six climbing gear load all exceed load shutdown value and persistently set the time, central control unit is sent out
Go out report to the police and make electric gear teeth bar type up-down system-down；Now should check at this spud leg guiding, wheel and rack engages
Whether place has foreign body to cause clamping stagnation.
(3) if platform inclination angle exceedes load shutdown value, central control unit sends warning and makes electric gear rack type
Jacking system is shut down；Now, operator more control leveling, i.e. under ignoring inclination warning function state, manually to single pile
Lifting, be up to the standard requirement.If platform inclination angle is not less than shutdown value, system judges whether inclination angle exceedes alarming value.
(4) if platform inclination angle exceedes load alarming value, central control unit automatic alarm, but not shutting down, system is
Run leveling procedure.Now, operator can manually make it shut down；Or watching how it develops quietly, system may just can be adjusted to
Often state, it is also possible to leveling cannot make system-down until being tilted beyond shutdown value for some reason.If operator's hands
Moving makes jacking system quit work, and platform can be carried out the lifting of manual single pile leveling；If operator ignore inclination and report to the police,
System will continue to run with.If platform inclination angle is not less than load alarming value, system judges whether to exceed load early warning value.
(5) if platform inclination angle exceedes load early warning value, system is automatically into leveling procedure, and detection climbing gear is subject to simultaneously
Carry.If platform inclination angle is not less than load early warning value, system judges whether climbing gear stand under load exceedes load early warning value.
(6) if climbing gear stand under load exceedes load early warning value, system will be automatically adjusted corresponding frequency converter frequency, it is achieved load
Online reallocation.Meanwhile, system is by the loading conditions after detection climbing gear reallocation.If climbing gear load is not less than load
Alarming value, system runs synchronization program, simultaneity factor real-time judge climbing gear loading conditions.
In a word, a kind of jacking system load is reallocated technical method online, finally makes six on same spud leg main chord tube
Six climbing gear load in individual lifting unit A1, B1, C1, A2, B2, C2 tend to impartial and are below early warning value.
Claims (3)
1. jacking system load is reallocated a technical method online, for electric gear teeth bar type up-down system, this electric gear
Wheel rack type jacking system includes central control unit, motor control unit, stake limit control unit and lifting unit；Truss leg
One spud leg main chord tube (3) of jack-up unit is equipped with a solid pile element (2), and upper an installation of solid pile element (2) overlaps liter more
Fall unit, it is characterised in that: each lifting unit configuration frequency conversion motor, frequency conversion motor drives climbing gear, electricity by reduction box
Machine control unit is the converter that the configuration of each frequency conversion motor is independent；Central control unit is with safety as principle, with platform inclination
Degree is constraints, to regulate climbing gear load as target；Described central control unit real time on-line monitoring is all to climb
Gear stand under load degree and platform inclined degree, exceed load early warning value when climbing gear institute is loaded and meets platform inclination condition
Time, described central control unit output control signal is given the converter of the motor control unit that this climbing gear is corresponding, is climbed this
The frequency conversion motor that liter gear mesh is answered carries out load and reallocates online, makes all climbing gears on same spud leg main chord tube (3)
Loaded all in set point.
Jacking system load the most according to claim 1 is reallocated technical method online, it is characterised in that climb described in: tooth
Take turns degree loaded and include load shutdown value and load early warning value；When the load of one of them climbing gear in all climbing gears
When lotus exceedes load shutdown value, central control unit sends warning and makes electric gear teeth bar type up-down system-down；Operator
Member manually regulates the frequency converter frequency that this climbing gear is corresponding, it is achieved manual load is reallocated, and is then again started up electric gear
Teeth bar type up-down system.
Jacking system load the most according to claim 1 is reallocated technical method online, it is characterised in that: described truss stake
Lower limb jack-up unit inclined degree includes platform inclination shutdown value, platform inclination alarming value and platform inclination early warning value, as reality
Execute the constraints of load reallocation；When truss leg jack-up unit inclination angle exceedes platform inclination shutdown value, and central authorities control
Unit automatic alarm also makes electric gear teeth bar type up-down system-down；Operator more control leveling, are i.e. ignoring inclination
Under warning function state, manually lifting single pile, be up to the standard requirement；When truss leg jack-up unit inclination angle exceedes
When platform inclination alarming value is not up to shutdown value, operator manually carry out single pile lifting, and be up to the standard requirement；Work as truss
Spud leg jack-up unit inclination angle exceedes platform inclination early warning value when being not up to alarming value, and central control unit runs automatic leveling
Program, be up to the standard requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610621901.1A CN106192964B (en) | 2016-08-01 | 2016-08-01 | Jacking system load is reallocated technical method online |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610621901.1A CN106192964B (en) | 2016-08-01 | 2016-08-01 | Jacking system load is reallocated technical method online |
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| Publication Number | Publication Date |
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| CN106192964A true CN106192964A (en) | 2016-12-07 |
| CN106192964B CN106192964B (en) | 2018-02-16 |
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| CN201610621901.1A Active CN106192964B (en) | 2016-08-01 | 2016-08-01 | Jacking system load is reallocated technical method online |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849763A (en) * | 2017-02-28 | 2017-06-13 | 武汉船用机械有限责任公司 | The control method and control device of a kind of hoistable platform |
| CN109056850A (en) * | 2018-07-16 | 2018-12-21 | 武汉船用机械有限责任公司 | The monitoring method and monitoring system of the spud leg load of self-elevating ocean platform |
| CN112962558A (en) * | 2021-02-05 | 2021-06-15 | 太原重工股份有限公司 | Drilling platform lifting control system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001261292A (en) * | 2000-03-24 | 2001-09-26 | Nippon Sharyo Seizo Kaisha Ltd | Jack device |
| CN103015388A (en) * | 2013-01-21 | 2013-04-03 | 上海振华重工(集团)股份有限公司 | Self-elevating platform lifting device allowing for dynamically detection of load |
| CN203729285U (en) * | 2014-02-24 | 2014-07-23 | 上海振华重工(集团)股份有限公司 | Lifting control device of self-elevating drilling platform |
| CN105369791A (en) * | 2015-09-30 | 2016-03-02 | 武汉船用机械有限责任公司 | Control method and device of gear rack lifting system |
| CN205062784U (en) * | 2015-08-19 | 2016-03-02 | 广东精铟海洋工程股份有限公司 | Offshore platform operating system of high reliability wide range speed control scope |
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2016
- 2016-08-01 CN CN201610621901.1A patent/CN106192964B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001261292A (en) * | 2000-03-24 | 2001-09-26 | Nippon Sharyo Seizo Kaisha Ltd | Jack device |
| CN103015388A (en) * | 2013-01-21 | 2013-04-03 | 上海振华重工(集团)股份有限公司 | Self-elevating platform lifting device allowing for dynamically detection of load |
| CN203729285U (en) * | 2014-02-24 | 2014-07-23 | 上海振华重工(集团)股份有限公司 | Lifting control device of self-elevating drilling platform |
| CN205062784U (en) * | 2015-08-19 | 2016-03-02 | 广东精铟海洋工程股份有限公司 | Offshore platform operating system of high reliability wide range speed control scope |
| CN105369791A (en) * | 2015-09-30 | 2016-03-02 | 武汉船用机械有限责任公司 | Control method and device of gear rack lifting system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849763A (en) * | 2017-02-28 | 2017-06-13 | 武汉船用机械有限责任公司 | The control method and control device of a kind of hoistable platform |
| CN109056850A (en) * | 2018-07-16 | 2018-12-21 | 武汉船用机械有限责任公司 | The monitoring method and monitoring system of the spud leg load of self-elevating ocean platform |
| CN109056850B (en) * | 2018-07-16 | 2020-12-15 | 武汉船用机械有限责任公司 | Monitoring method and monitoring system for pile leg load of self-elevating ocean platform |
| CN112962558A (en) * | 2021-02-05 | 2021-06-15 | 太原重工股份有限公司 | Drilling platform lifting control system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106192964B (en) | 2018-02-16 |
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