CN105887789A - Pile leg pile pitching technology of heavy lifting mechanism - Google Patents
Pile leg pile pitching technology of heavy lifting mechanism Download PDFInfo
- Publication number
- CN105887789A CN105887789A CN201610440675.7A CN201610440675A CN105887789A CN 105887789 A CN105887789 A CN 105887789A CN 201610440675 A CN201610440675 A CN 201610440675A CN 105887789 A CN105887789 A CN 105887789A
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- CN
- China
- Prior art keywords
- spud leg
- hook
- lifting mechanism
- steel wire
- gib head
- 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.)
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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
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- 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
- B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a pile leg pile pitching technology of a heavy lifting mechanism. During preparation, a turning tool and two movable scaffolds are placed in a straight line. During pile leg moving, a pile leg is moved by means of two hook bodies of a floating crane main hook, two three-dividing points on a leg body of the pile leg serve as hoisting points according to requirements, the hoisting point at one end is hoisted, and then the other hoisting point is hoisted. During turning of the pile leg, a floating crane small hook stops on the top of a lug of the pile leg to be turned, a hoisting steel wire rope is installed on the small hook in advance, and a chinlon rope is used for assisting in threading and guiding the hoisting steel wire rope by means of a loose hook. The technology has the advantages that the problem that projection duration is short is solved, pile pitching and operation precision requirements are met, the pile leg installation requirement of the heavy lifting mechanism is met, and single-hook pile pitching is achieved.
Description
Technical field
The present invention relates to a kind of heavy exposed gear rack gear technical field, particularly to a kind of heavy lifting mechanism
Spud leg pitching pile technique.
Background technology
The lifting mechanism of jackstone leveling ship and self-elevating drilling platform belongs to heavy exposed gear rack gear structure.According to
The spud leg requirement of self-elevating drilling platform, the number of times of platform annual plug/unplug stake must not exceed 5 times；And lifting mechanism operation is frequent,
Rack-and-pinion is chronically at low speed, heavy duty, impact operating mode, the abrasion of frequent high load capacity plug stake operation accelerating gear tooth bar；Warp
Crossing detection, locally the attrition value of spud leg tooth bar alreadys more than design permissible value, and spud leg tooth surface of rack records greatest wear amount and is about
6.5mm (maximum allowable 6mm), tooth top greatest wear amount reaches 15mm (maximum allowable 5mm), for the loss situation of spud leg, more
Change maintenance spud leg the most imperative, but the length of spud leg is long, stands up the most extremely difficult with pitching pile.
Summary of the invention
The technical problem to be solved in the present invention is to provide the spud leg pitching pile technique of a kind of effective and feasible heavy lifting mechanism.
For solving above-mentioned technical problem, the technical scheme is that the spud leg pitching pile technique of a kind of heavy lifting mechanism,
Its innovative point is: described spud leg is a tubular structure being vertically arranged, including middle part tooth bar and be installed on tooth bar both sides
The string pipe in face, its head both sides have a pair hanger being easy to lifting, and the pile pulling technique of this spud leg is as follows:
(1) prepare: be that straight line is put by turning tool and two groups of movable jig frames, turning tool arranges sleeper and hard
Wood, steel loading cord of being hung oneself by crane barge in advance is installed and is put in place；Locking device on heavy lifting mechanism unclamps, and locking device unclamps,
Lifting mechanism is energized, and adjusts climbing gear tooth top and the angle becoming 26 degree of level of lifting mechanism, stops climbing gear occur
Tooth top is straight at 5 degree of angle phenomenons；
(2) spud leg displacement: use the displacement of crane barge main hook double hook, crane barge includes main hook A and two main hooks of main hook B, and exists in advance
Displacement steel wire rope it is respectively mounted on main hook；Make suspension centre at two three partial nodes with spud leg lower limb on request, first hang one end and hang
Point, puts down main hook A, utilizes forklift to be put by hardwood to spud leg and transfers tooth bar both sides, and withstand with forklift, ties up steel by 2
Cord carries out pushing down sleeper, catches spud leg, shackle between the displacement steel wire rope on crane barge and binding steel wire rope is installed and puts in place.Main hook
A slowly tightens up, and completes the steel wire rope installment work of main hook B by above step；Double hook lifts by crane the most simultaneously；Remove below spud leg
Transporting tire frame；Mobile crane barge, carries out shifting spud leg, and spud leg is displaced to above spud leg, and two gib heads pine simultaneously, pine is to from turning tool
At high 100mm, turning tool side gib head first pine, until tooth bar withstands turning tool arc plate bottom spud leg, gib head bottom spud leg
Pine hook, spud leg top gib head slowly pine hook, to place on movable jig frame, displacement puts in place, pine hook, releases steel wire rope and shackle；
(3) spud leg stands up: stopped by little for crane barge hook to spud leg hanger top to be stood up, and installs lifting steel wire in advance on little hook
Rope, pine hook utilizes caprone cable to carry out auxiliary and connects lifting steel wire rope, and lifting steel wire rope is installed and put in place, gib head slowly stress, gib head
When upper stress is spud leg gross weight 50% ~ 60%, one grade slowly rises hook, and crane barge slowly moves toward spud leg root direction simultaneously.At the bottom of spud leg
Portion's slowly stress, at any time supervision spud leg state on turning tool, need to ensure hanging down of little hook gib head and horizontal spud leg when standing up
Directly, little hook gib head and spud leg general assembly hanger ensure point-blank, preventing spud leg from occurring rolling out turning tool, spud leg slowly turns over
When body is to 80 degree, on gib head, stress is more than the 75% of spud leg gross weight, and moment supervision spud leg stands up shape on turning tool
State, it is to avoid sideslip phenomenon occurs；Spud leg stands up after 90 degree, and crane barge sidesway stops, rising hook stopping, stopping and checks whether for 10 minutes
Having exception, gib head slowly rises hook, until hanging turning tool；
(4) spud leg plug-in mounting: mobile crane barge, moves to spud leg specify lifting mechanism top, away from lifting mechanism platform height 500mm,
Fine setting spud leg end opening, gib head is the most loose, uses chain block to adjust and ensures that spud leg tooth bar passes the guide plate of gear rack；Gib head is slowly
Pine；Lifting mechanism is suitable for reading need to be kept an eye on by special messenger, need to be adjusted in place in time if any deviation；Lifting mechanism power-off, spud leg slow transits through
First pin gear, one grade of loose hook, keep a gib head number of degrees value in the 60% ~ 65% of spud leg gross weight constant, take and see quarter
The note spud leg situation by guide plate；After lifting mechanism 20m is inserted in spud leg lower end, crane barge stops；Lifting mechanism is energized, by lifting
Mechanism's locking, locking device is locked；Gib head slowly pine hook；Utilizing crane barge lockset hook block to live cage, people stands in cage and solves
Tie up lifting steel wire rope, coat hanger mountain fray paint after having dismantled, carry out lifting test.
Further, described turning tool includes bottom mounting seat, deck, cushion block；Described mounting seat lies in a horizontal plane in ground
On face, on its top end face, next-door neighbour is provided with cushion block and deck the most successively, and described deck upper end is indent circular arc
Draw-in groove, the minimum point of this draw-in groove and planes align on cushion block.
It is an advantage of the current invention that: solve duration short problem, it is ensured that pitching pile and transhipment required precision, it is ensured that heavy type is lifted
Rise the installation requirement of the spud leg of mechanism, it is achieved single hook pitching pile.
Accompanying drawing explanation
Fig. 1 is the spud leg displacement schematic diagram of the spud leg pitching pile technique of a kind of heavy lifting mechanism of the present invention.
Fig. 2 is the turning tool schematic diagram of the spud leg pitching pile technique of a kind of heavy lifting mechanism of the present invention.
Detailed description of the invention
The invention discloses the spud leg pitching pile technique of a kind of heavy lifting mechanism, solve spud leg pile pulling difficulty, stand up tired
A difficult difficult problem, below as a example by jackstone leveling ship, describes present disclosure in detail.
The lifting mechanism of jackstone leveling ship belongs to heavy exposed gear rack gear structure, with self-elevating drilling platform class
Seemingly.According to the spud leg requirement of self-elevating drilling platform, the number of times of platform annual plug/unplug stake must not exceed 5 times；And the lifting of leveling ship
Rising mechanism's operation frequent, in the joint construction of every pipe joint, leveling ship is accomplished by plug/unplug stake at least 8 times, and plug stake every year on average is more than 80
Secondary.
Leveling ship operation marine site complex geologic conditions, plug stake operating mode is severe, rack-and-pinion be chronically at low speed, heavy duty,
Impact operating mode, the abrasion of frequent high load capacity plug stake operation accelerating gear tooth bar；Locally the attrition value of spud leg tooth bar alreadys more than
Design permissible value, spud leg tooth surface of rack records greatest wear amount and is about 6.5mm (maximum allowable 6mm), and tooth top greatest wear amount reaches
To 15mm (maximum allowable 5mm)；
Jackstone leveling ship lifting is filled to be made up of 4 spud legs and 32 gear devices, and this device is leveling ship Core equipment
One of.Wherein a length of 90 meters of spud leg, drum diameter are 2.8 meters of (adding a diameter of 3.6 meters of upper rack), single weight 470 tons.Should
The pitching pile technique of spud leg is as follows:
(1) prepare
Barge towage is to behind spud leg general assembly region, by jackstone leveling ship towage to putting in place, docks at anhydrous wave region, has thrown anchor,
Need to have carried hawser, the tension of band cable to avoid stone dumper to rock, unbind process and (cut off colligation strut, cut between barge and jackstone leveling ship
Weld seam and card code except transporting tire frame and deck).
Turning tool on barge is installed and puts in place, during installation, ensure turning tool lower railway beam and the main muscle pair in barge deck
Muscle, other two groups of movable jig frames are put on request and are put in place.Ensure that turning tool is with movable jig frame point-blank.Standing up work
Load onto and arrange sleeper (sleeper of bottom surface employing 120*120-1.5m) and hardwood (hardwood of end face employing 300*300-1.5m)
As used sleeper that sleeper certainly will be caused to squish, it is impossible to support the pressure of 250T when spud leg stands up.Movable jig frame is offered when making
The notch of 130*130, and in notch, arrange the anti-skidding sleeper of 120*120-1.5m；As it is shown in figure 1, turning tool includes the end
Portion's mounting seat 4, deck 7, cushion block 5；Mounting seat 4 horizontal positioned on the ground, its top end face is close to peace the most successively
Equipped with cushion block 5 and deck 7, deck 7 upper end is indent circular arc draw-in groove, the minimum point of this draw-in groove and planes align on cushion block 5.
As in figure 2 it is shown, hung oneself by 4000T crane barge in advance, steel loading cord 2 is installed and is put in place.Spud leg displacement uses crane barge main hook double
Hook shifts, and main hook A uses the steel wire rope loop of 144*20m to carry out doubling hook and puts in place.Spud leg lifting uses crane barge little hook block dress.Little
Hook uses the steel wire rope loop of 144*20m to link up with, and (grinds when preventing spud leg from standing up at steel wire rope loop lower end installation steel wire loop
Damage steel wire rope, facilitate high-altitude solve steel wire rope), and spread on steel wire loop butter (in view of steel wire loop with lift hanger rub
Wiping power is big, increases and stands up difficulty, and aunt spreads butter).
By on jackstone leveling ship, locking device unclamps, lifting mechanism be energized, adjust lifting mechanism climbing gear tooth top with
The angle of the one-tenth of level 26 degree, stops climbing gear tooth top occur straight at 5 degree of angle phenomenons, short electric treatment.
(2) spud leg displacement
As in figure 2 it is shown, make suspension centre toward (spud leg total length 90m) at each 15m in both ends at spud leg centrage 45m on request, first hang
One end suspension centre, puts down main hook A, utilizes forklift to be put by the hardwood of 300*300-1.5m to spud leg and transfers two rack bar sides, factory's car
Withstand (in view of forklift, relieving length is effective, and scene utilizes existing clout to carry out making lengthening teeth set), by 2 85*20m
Steel wire rope carry out pushing down sleeper, catch spud leg, 200T shackle between the steel wire rope of 85*20m and the steel wire rope of 144*20m installed
Put in place.Main hook A slowly tightens up, and completes the steel wire rope installment work of main hook B by above step.Double hook lifts by crane the most simultaneously.Remove
Transporting tire frame below spud leg, arranges the movable jig frame stood up.
Mobile crane barge, carries out shifting spud leg 3, and spud leg 3 is displaced to above barge, and two gib heads pine simultaneously, pine is to from standing up work
Filling at high 100mm, turning tool side gib head first pine, until tooth bar withstands turning tool arc plate, bottom spud leg 3 bottom spud leg 3
Gib head pine hook, spud leg 3 top gib head slowly pine hook, to place on movable jig frame, displacement puts in place.Pine hook, releases steel wire rope and shackle.
Reparation paint processes.The aeronautical light at spud leg top is installed.
(3) spud leg pitching pile
Being stopped by little for 4000T crane barge hook to spud leg hanger top to be stood up, pine hook utilizes caprone cable to carry out auxiliary and connects 144*20m
Steel wire rope, steel wire rope installs and puts in place, gib head slowly stress, and on gib head about stress 260t, one grade slowly to rise hook simultaneously crane barge slow
Slow past spud leg root direction is moved.Slowly stress bottom spud leg, at any time supervision spud leg state on turning tool, need when standing up
Ensure that little hook gib head hook gib head vertical with horizontal spud leg, little ensures point-blank with spud leg general assembly hanger, prevent spud leg
Occur rolling out turning tool.
When spud leg slowly stands up to 80 degree, stood up by turning tool one step bottom spud leg and transit on another step, hook
On head, stress is at more than 350T, and moment supervision spud leg stands up state on turning tool, it is to avoid sideslip phenomenon occur.Spud leg
Standing up after 90 degree, crane barge sidesway stops, rising hook stopping, stopping and has checked whether exception in 10 minutes, and gib head slowly rises hook, until
Hanging turning tool, the gib head number of degrees are 470T.
Mobile crane barge, moves to spud leg specify lifting apparatus top (away from lifting apparatus platform height 500mm), finely tunes spud leg
End opening, gib head is the most loose, uses chain block to adjust and ensures that spud leg tooth bar passes the guide plate of gear rack.Gib head is the most loose.Lifting fills
Put and suitable for reading need to be kept an eye on by special messenger, need to be adjusted in place in time if any deviation.Lifting mechanism power-off, spud leg slow transits through first pin tooth
Wheel, one grade of loose hook, keep the gib head number of degrees at 300T, take the concern spud leg situation by guide plate at quarter.Spud leg lower end is inserted and is lifted
After rising device 20m, crane barge stops.Lifting mechanism is energized, and by lifting mechanism locking, locking device is locked.Gib head slowly pine hook.
Utilizing crane barge lockset hook block to live cage, people stands in and carries out in cage inserting lifting steel wire rope, is coated with and hangs oneself after having dismantled
Ear also paints in fray, carries out lifting test.
Ultimate principle and the principal character of the present invention have more than been shown and described.Skilled person will appreciate that of the industry,
The present invention is not restricted to the described embodiments, the principle that the present invention is simply described described in above-described embodiment and description,
Without departing from the spirit and scope, the present invention also has various changes and modifications, and these changes and improvements all fall
Enter in scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (4)
1. the spud leg pitching pile technique of a heavy lifting mechanism, it is characterised in that: described spud leg is a tubular knot being vertically arranged
Structure, including the tooth bar at middle part and be installed on the string pipe of tooth bar two sides, its head both sides have a pair hanger being easy to lifting,
The pile pulling technique of this spud leg is as follows:
Prepare: be that straight line is put by turning tool and two groups of movable jig frames, turning tool arrange sleeper and hardwood,
Steel loading cord of being hung oneself by crane barge in advance is installed and is put in place；Locking device on heavy lifting mechanism unclamps, and locking device unclamps, lifting
Mechanism is energized, and adjusts climbing gear tooth top and the angle becoming 26 degree of level of lifting mechanism, stops climbing gear tooth top occur
Straight at 5 degree of angle phenomenons；
Spud leg shifts: use the displacement of crane barge main hook double hook, and crane barge includes main hook A and two main hooks of main hook B, and in advance at main hook
On be respectively mounted displacement steel wire rope；Make suspension centre at two three partial nodes with spud leg lower limb on request, first hang one end suspension centre, will
Main hook A puts down, and utilizes forklift to be put by hardwood to spud leg and transfers tooth bar both sides, and withstand with forklift, is entered by 2 binding steel wire ropes
Row pushes down sleeper, catches spud leg, shackle between the displacement steel wire rope on crane barge and binding steel wire rope is installed and puts in place.
2. main hook A slowly tightens up, and completes the steel wire rope installment work of main hook B by above step；Double hook lifts by crane the most simultaneously；Remove
Transporting tire frame below spud leg；Mobile crane barge, carries out shifting spud leg, and spud leg is displaced to above spud leg, and two gib heads pine simultaneously, pine is extremely
Away from turning tool height 100mm, turning tool side gib head first pine, until tooth bar withstands turning tool arc plate, stake bottom spud leg
Gib head pine hook bottom lower limb, spud leg top gib head slowly pine hook, place on movable jig frame, displacement puts in place, pine hook, release steel wire rope and
Shackle；
Spud leg stands up: stopped by little for crane barge hook to spud leg hanger top to be stood up, and installs lifting steel wire rope, pine in advance on little hook
Hook utilizes caprone cable to carry out auxiliary and connects lifting steel wire rope, and lifting steel wire rope is installed and put in place, gib head slowly stress, stress on gib head
During for spud leg gross weight 50% ~ 60%, one grade slowly rises hook, and crane barge slowly moves toward spud leg root direction simultaneously.
3. slowly stress bottom spud leg, at any time supervision spud leg state on turning tool, need to ensure when standing up little hook gib head with
Laterally the hook gib head vertical, little of spud leg ensures point-blank with spud leg general assembly hanger, prevents spud leg from occurring rolling out and stand up work
Dress, when spud leg slowly stands up to 80 degree, on gib head, stress is more than the 75% of spud leg gross weight, and moment supervision spud leg is standing up work
That loads onto stands up state, it is to avoid sideslip phenomenon occur；Spud leg stands up after 90 degree, and crane barge sidesway stops, rising hook stopping, stopping 10
Minute having checked whether exception, gib head slowly rises hook, until hanging turning tool；
Spud leg plug-in mounting: mobile crane barge, moves to spud leg specify lifting mechanism top, away from lifting mechanism platform height 500mm, and fine setting
Spud leg end opening, gib head is the most loose, uses chain block to adjust and ensures that spud leg tooth bar passes the guide plate of gear rack；Gib head is the most loose；Lift
Rise that mechanism is suitable for reading need to be kept an eye on by special messenger, need to be adjusted in place in time if any deviation；Lifting mechanism power-off, spud leg slow transits through first
Pin gear, one grade of loose hook, keep a gib head number of degrees value in the 60% ~ 65% of spud leg gross weight constant, take concern spud leg at quarter
By the situation of guide plate；After lifting mechanism 20m is inserted in spud leg lower end, crane barge stops；Lifting mechanism is energized, and is embraced by lifting mechanism
Extremely, locking device locking；Gib head slowly pine hook；Utilizing crane barge lockset hook block to live cage, people stands in and carries out in cage unbinding lifting
Steel wire rope, coats hanger mountain fray paint, carries out lifting test after having dismantled.
The spud leg pitching pile technique of a kind of heavy lifting mechanism the most according to claim 1, it is characterised in that stand up work described in:
Dress includes bottom mounting seat, deck, cushion block；Described mounting seat horizontal positioned on the ground, its top end face depends on from front to back
Secondary next-door neighbour is provided with cushion block and deck, and described deck upper end is indent circular arc draw-in groove, in the minimum point of this draw-in groove and cushion block
Planes align.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440675.7A CN105887789B (en) | 2016-06-20 | 2016-06-20 | A kind of spud leg pitching pile technique of heavy lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440675.7A CN105887789B (en) | 2016-06-20 | 2016-06-20 | A kind of spud leg pitching pile technique of heavy lifting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105887789A true CN105887789A (en) | 2016-08-24 |
| CN105887789B CN105887789B (en) | 2018-02-02 |
Family
ID=56731216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610440675.7A Active CN105887789B (en) | 2016-06-20 | 2016-06-20 | A kind of spud leg pitching pile technique of heavy lifting mechanism |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1138455A1 (en) * | 1983-07-20 | 1985-02-07 | Всесоюзный научно-исследовательский и проектно-конструкторский институт по проблемам освоения нефтяных и газовых ресурсов континентального шельфа | Mast-type stationary offshore platform |
| JP4260988B2 (en) * | 1999-07-06 | 2009-04-30 | 大成建設株式会社 | Amphibious work platform |
| CN102720197A (en) * | 2012-07-05 | 2012-10-10 | 南通中远船务工程有限公司 | Method for hoisting pile legs of self-elevating wind turbine installation vessel in turn-over way |
| CN104627898A (en) * | 2013-11-15 | 2015-05-20 | 湖北华舟重工应急装备股份有限公司 | Platform lifting mechanism |
| CN104805814A (en) * | 2014-05-13 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Self-elevating platform pile leg mounting method |
| CN204847052U (en) * | 2015-07-20 | 2015-12-09 | 龙口中集来福士海洋工程有限公司 | Spud leg sectionalised transportation frock |
-
2016
- 2016-06-20 CN CN201610440675.7A patent/CN105887789B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1138455A1 (en) * | 1983-07-20 | 1985-02-07 | Всесоюзный научно-исследовательский и проектно-конструкторский институт по проблемам освоения нефтяных и газовых ресурсов континентального шельфа | Mast-type stationary offshore platform |
| JP4260988B2 (en) * | 1999-07-06 | 2009-04-30 | 大成建設株式会社 | Amphibious work platform |
| CN102720197A (en) * | 2012-07-05 | 2012-10-10 | 南通中远船务工程有限公司 | Method for hoisting pile legs of self-elevating wind turbine installation vessel in turn-over way |
| CN104627898A (en) * | 2013-11-15 | 2015-05-20 | 湖北华舟重工应急装备股份有限公司 | Platform lifting mechanism |
| CN104805814A (en) * | 2014-05-13 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Self-elevating platform pile leg mounting method |
| CN204847052U (en) * | 2015-07-20 | 2015-12-09 | 龙口中集来福士海洋工程有限公司 | Spud leg sectionalised transportation frock |
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| CN105887789B (en) | 2018-02-02 |
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Effective date of registration: 20170524 Address after: The 226000 farm of Jiangsu province Nantong Development Zone Riverview Road No. 1 Applicant after: Nantong Zhenhua Heavy Equipment Manufacturing Co., Ltd. Address before: 226000 Jiangsu Province, Nantong Development Zone, Zhenhua Road No. 1 Applicant before: Shanghai Zhenhua Heavy Industry Group (Nantong) Co., Ltd. |
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