CN109371949A - A kind of rack-and-pinion bolt jacking system and its elevating method - Google Patents
A kind of rack-and-pinion bolt jacking system and its elevating method Download PDFInfo
- Publication number
- CN109371949A CN109371949A CN201811213492.7A CN201811213492A CN109371949A CN 109371949 A CN109371949 A CN 109371949A CN 201811213492 A CN201811213492 A CN 201811213492A CN 109371949 A CN109371949 A CN 109371949A
- Authority
- CN
- China
- Prior art keywords
- lifting
- bolt
- rack
- gear
- spud leg
- 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.)
- Pending
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of rack-and-pinion bolt jacking system and its elevating methods, the rack-and-pinion bolt jacking system is set on spud leg, including rotating ring beam, lifter rack, lifting unit, lifting basis and bolt mechanism, the lifting basis is installed on the deck of offshore platform, and the lifting unit is installed on the lifting basis；The bottom end of the lifter rack passes through lifting basis, and the lifter rack and lifting gear engagement.The batch-type hoisting for realizing offshore platform, compared with hydraulic bolt jacking system, average lifting speed is faster, reliable and stable, avoids the lift cylinder using easy leakage, Maintenance Difficulty, and lifting is high-efficient, and average lifting speed is up to 30m/h.Lifter rack is set to the bottom of rotating ring beam, without using fixed pile chamber and determines ring beam, simplifies structure, greatly save the cost, reduces lifting difficulty.
Description
Technical field
The present invention relates to offshore platform lifting device field more particularly to a kind of rack-and-pinion bolt jacking systems and its liter
Drop method.
Background technique
Offshore work platform requires the spud leg for using elevating mechanism with moving platform and moves up and down to realize that operation on the sea is flat
The lifting of platform.And what hydraulic bolt jacking system used at present was mainly connect by fixed pile chamber, with fixed pile chamber determines ring beam, rotating ring
Beam and the composition such as determine the oil cylinder coupled between ring beam and rotating ring beam make lifting motion up and down by oil cylinder when work, by fixed
Alternately plug carries out changing step spud leg bolt on ring beam, rotating ring beam, realizes single step motion, speed is slow, and oil cylinder makes for a long time
Exist with process and reveal, later period replacement is difficult in maintenance.Furthermore, it is desirable to fixed pile chamber, determine being used cooperatively for ring beam and rotating ring beam, control
Difficulty is high, and manufacturing cost is high；It is articulated structure between oil cylinder and rotating ring beam, is easy to happen and rocks relatively, lead to rotating ring beam and stake
Leg collides.
Summary of the invention
It is an object of the invention to propose that a kind of lifting speed is fast, convenient for safeguarding, save the cost stablizes the gear teeth of safety
Bolt jacking system and its elevating method.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of rack-and-pinion bolt jacking system, the rack-and-pinion bolt jacking system are set on spud leg, including dynamic
Ring beam, lifter rack, lifting unit, lifting basis and bolt mechanism, the lifting basis are installed on the deck of offshore platform,
The lifting unit is installed on the lifting basis；
The lifting unit includes lifting tooth wheel shaft, lifting gear and driving device, and the lifting gear is sheathed on described
The other end of one end of lifting tooth wheel shaft, the lifting tooth wheel shaft is connected with driving device；
The rotating ring beam casing is on the spud leg, and the rotating ring beam is located at the top on the lifting basis, the liter
The top of drop rack gear is fixedly connected integrally with rotating ring beam, and the bottom end of the lifter rack passes through lifting basis, and the liter
Rack gear and lifting gear engagement drop；
The lifter rack is parallel to the axis setting of the spud leg, and the bolt mechanism is set on the rotating ring beam,
Multiple pin holes are arranged in the spud leg evenly and at intervals in the axial direction, and the bolt axle and pin hole of the bolt mechanism are corresponding；
Latch gear is additionally provided on the basis of the lifting, the latch gear is located at the underface of the bolt mechanism, institute
Lock pin and the pin hole for stating latch gear are corresponding.
Preferably, the two sides of the lifter rack are symmetrically arranged with two column lifting units, two column teeth of the lifter rack and
The lifting gear of two column lifting units is engaged；
The top of the lifter rack is close to the top of two column lifting units.
Preferably, four lifter racks are equipped with along the circumferencial direction of spud leg, four lifter racks are opposite two-by-two；
It sets along the circumferencial direction of spud leg there are four bolt mechanism, four bolt mechanisms are opposite two-by-two, and adjacent two rise
It drops and a bolt mechanism is set between rack gear；It sets along the circumferencial direction of spud leg there are four latch gear, the latch gear and inserts
Pin mechanism is corresponding up and down one by one.
Preferably, the rotating ring beam is octagon, and the rotating ring beam is set there are four rack gear face and four bolt faces, two institutes
One bolt face of setting between rack gear face is stated, i.e. four rack gear faces are opposite two-by-two, and four institute's bolt faces are opposite two-by-two；
Each rack gear face is fixedly connected with the top of a lifter rack, and a bolt mechanism is installed in each bolt face.
Preferably, the lifting basis is octagon, and the spud leg passes through the middle part octagon through-hole on the lifting basis；
The lifting basis is set there are four face of gear and four lock pin faces, and four face of gear and four rack gear faces correspond, four locks
Pin face and four bolt faces correspond；
Each face of gear installs two column lifting units, the lifting tooth of two column teeth of lifter rack and the two column lifting units
Wheel is engaged；Each lock pin face is equipped with a latch gear.
Preferably, the spud leg is cylinder, and the spud leg is equipped with four charge off holes, the corresponding bolt machine of each column pin hole
Structure；The inside of the rotating ring beam is equipped with spud leg receiving opening, and the spud leg receiving opening is circle.
Preferably, the rotating ring beam is arranged multiple guiding devices in spud leg receiving opening, two neighboring bolt mechanism it
Between be equipped with a guiding device, the guiding device be wearing plate.
Preferably, the latch gear further includes lock pin oil cylinder and locking pin seat, and the locking pin seat is installed on the lifting base
Plinth, the lock pin oil cylinder are installed on one end of the locking pin seat, the piston company of one end of the lock pin and the lock pin oil cylinder
It connects, the other end of the lock pin is inserted into corresponding pin hole after locking pin seat, and the outside of the locking pin seat is cased with lock pin buffering
Pad, the lock pin cushion includes several layers steel disc and several layers sheet rubber, and the steel disc and the sheet rubber are spaced apart.
Preferably, reset condition is set to be inserted on corresponding pin hole as the bolt axle of all bolt mechanisms and all locks
The lock pin of pin mechanism is inserted on corresponding pin hole；
Including promoting platform method:
Step A1, firstly, withdraw the lock pin of all latch gears, all lifting gears rotations make lifter rack to moving down
It is dynamic, a pitch until spud leg sinks；Then, the lock pin of all latch gears is inserted into corresponding pin hole, withdraws all bolts
The bolt axle of mechanism, all lifting gear rotations make lifter rack move up a pitch；
Step A2 repeats step A1 until spud leg is fixed on sea bed, is then return to the reset condition；
Step A3, firstly, withdrawing the lock pin of all latch gears, all lifting gears are moved up along lifter rack,
Until offshore platform rises a pitch；Then, the lock pin of all latch gears is inserted into corresponding pin hole, withdraws all bolts
The bolt axle of mechanism, all lifting gear rotations make lifter rack move up a pitch；
Step A4 repeats step A3 until offshore platform rises to specified altitude assignment, is then return to the original shape
State.
Preferably, further include decline platform method:
Step B1, firstly, withdrawing the lock pin of all latch gears, all lifting gears are moved down along lifter rack,
Until offshore platform declines a pitch；Then, the lock pin of all latch gears is inserted into corresponding pin hole, withdraws all bolts
The bolt axle of mechanism, all lifting gear rotations make lifter rack move down a pitch；
Step B2 repeats step B1 until offshore platform drops to sea level, is then return to the original shape
State；
Step B3, firstly, withdraw the lock pin of all latch gears, all lifting gears rotations make lifter rack to moving up
It is dynamic, until spud leg rises a pitch；Then, the lock pin of all latch gears is inserted into corresponding pin hole, withdraws all bolts
The bolt axle of mechanism, all lifting gear rotations make lifter rack move down a pitch；
Step B4 repeats step B3 until spud leg is retracted to offshore platform, is then return to the reset condition.
Rotating ring beam is driven moving up and down i.e. for lifter rack by lifting unit by the rack-and-pinion bolt jacking system
The batch-type hoisting that offshore platform can be achieved, compared with hydraulic bolt jacking system, average lifting speed is faster, reliable and stable,
The lift cylinder using easy leakage, Maintenance Difficulty is avoided, lifting is high-efficient, and average lifting speed is up to 30m/h.Moreover, lifting tooth
Item is set to the bottom of rotating ring beam, without using fixed pile chamber and determining ring beam, but at sea installs and rises on the deck of platform
Drop basis simplifies structure, greatly save the cost to install lifting unit and latch gear, reduces lifting difficulty.Lifter rack
It is fixedly connected with rotating ring beam integrally, to occur to rock relatively between anti-locating snap ring beam and lifter rack, improves rotating ring beam
Stability avoids rotating ring beam and spud leg from colliding.
Detailed description of the invention
The present invention will be further described for attached drawing, but the content in attached drawing does not constitute any limitation of the invention.
Fig. 1 is the rack-and-pinion bolt jacking system structural schematic diagram of the one of embodiment of the present invention；
Fig. 2 is the rack-and-pinion bolt jacking system cross-sectional structure figure of the one of embodiment of the present invention；
Fig. 3 is the lifting unit distribution map of the one of embodiment of the present invention；
Fig. 4 is the lifting unit structure chart of the one of embodiment of the present invention.
Wherein: rotating ring beam 1；Lifter rack 2；Lifting unit 3；Lifting basis 4；Bolt mechanism 5；Lifting tooth wheel shaft 31；It rises
Gear 32 drops；Driving device 33；Bolt axle 51；Latch gear 6；Lock pin 61；Spud leg 7；Deck 8；Guiding device 11；Lock pin oil
Cylinder 62；Locking pin seat 63.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
The rack-and-pinion bolt jacking system of the present embodiment, as shown in Figure 1, the rack-and-pinion bolt jacking system is set with
In on spud leg 7, including rotating ring beam 1, lifter rack 2, lifting unit 3, lifting basis 4 and bolt mechanism 5, the lifting basic 4
It is installed on the deck 8 of offshore platform, the lifting unit 3 is installed on the lifting basis 4；
As shown in figure 4, the lifting unit 3 includes lifting tooth wheel shaft 31, lifting gear 32 and driving device 33, the liter
Drop gear 32 is sheathed on one end of the lifting tooth wheel shaft 31, and the other end and driving device 33 of the lifting tooth wheel shaft 31 connect
It connects；
The rotating ring beam 1 is placed on the spud leg 7, and the rotating ring beam 1 is located at the top on the lifting basis 4, institute
It states the top of lifter rack 2 and rotating ring beam 1 is fixedly connected integrally, the bottom end of the lifter rack 2 passes through lifting basis 4, and
And the lifter rack 2 and lifting gear 32 engage；
The lifter rack 2 is parallel to the axis setting of the spud leg 7, and the bolt mechanism 5 is set to the rotating ring beam 1
On, multiple pin holes, the bolt axle 51 and pin hole phase of the bolt mechanism 5 is arranged in the spud leg 7 evenly and at intervals in the axial direction
It is corresponding；
Be additionally provided with latch gear 6 on lifting basis 4, the latch gear 6 be located at the bolt mechanism 5 just under
Side, the lock pin 61 and pin hole of the latch gear 6 are corresponding.
Rotating ring beam 1 is fixedly connected on the top of lifter rack 2, lifter rack 2 by the rack-and-pinion bolt jacking system
Support and lifting are realized by the engagement of lifting gear 32 with lifting unit 3, lifting unit 3 is installed on the lifting basis on deck
On 4, the lifting that offshore platform can be realized, bolt mechanism 5 are then moved up and down by the driving lifter rack 2 of lifting unit 3
It is set on rotating ring beam 1, latch gear 6 is set on lifting basis 4, to pass through the alternating of bolt mechanism 5 and latch gear 6
Connect spud leg 7, realize the batch-type hoisting of offshore platform, compared with hydraulic bolt jacking system, average lifting speed faster, surely
It is fixed reliable, the lift cylinder using easy leakage, Maintenance Difficulty is avoided, lifting is high-efficient, and average lifting speed is up to 30m/h.
Moreover, lifter rack 2 is set to the bottom of rotating ring beam 1, without using fixed pile chamber and determining ring beam, but in sea
Installation lifting basis 4, to install lifting unit 3 and latch gear 6, simplifies structure, greatly saves on the deck 8 of upper mounting plate
This, reduces lifting difficulty.Lifter rack 2 is fixedly connected integrally with rotating ring beam 1, thus anti-locating snap ring beam 1 and lifter rack 2 it
Between occur it is opposite rock, improve the stability of rotating ring beam 1, rotating ring beam 1 and spud leg 7 avoided to collide.
Preferably, as shown in Figure 1, Figure 3, the two sides of the lifter rack 2 are symmetrically arranged with two column lifting units 3, the liter
The lifting gear 32 of the two column teeth and two column lifting units 3 that drop rack gear 2 is engaged；The top of the lifter rack 2 is close to two
The top of column lifting unit 3.
2 to 3 pitches, each column lifting unit 3 are differed between the top of lifter rack 2 and the top of two column lifting units 3
Including 3 or more lifting units 3, both provided enough power for lifter rack 2, and made the two sides uniform force of lifter rack 2, also by
In the top of lifter rack 2 close to the top of two column lifting units 3, i.e., rotating ring beam 1 also close to two column lifting units 3 top,
And the biggish top half of the stress of lifter rack 2 is supported by two column lifting units 3, can effectively disperse lifter rack 2 by
Power, and two column lifting units 3 play guiding role to lifter rack 2, without additionally increasing the guide frame of lifter rack 2,
Lifter rack 2 in lifting process can also be made not to be biased to.
Preferably, as shown in Figure 1 and Figure 2, four lifter racks 2, four lifter racks 2 are equipped with along the circumferencial direction of spud leg 7
It is opposite two-by-two；It sets along the circumferencial direction of spud leg 7 there are four bolt mechanism 5, four bolt mechanisms 5 are opposite two-by-two, and adjacent two
One bolt mechanism 5 is set between root lifter rack 2；It sets along the circumferencial direction of spud leg 7 there are four latch gear 6, the lock pin
Mechanism 6 and bolt mechanism 5 are corresponding up and down one by one.Setting had both improved enough motive powers and lifting spud leg 7 in this way, also makes every and rises
Rack gear 2,6 uniform force of each bolt mechanism 5 and each latch gear drop, more steadily.
Preferably, as shown in Figure 1, the rotating ring beam 1 is octagon, the rotating ring beam 1 is set there are four rack gear face and four
A bolt face is arranged between two rack gear faces for bolt face, i.e. four rack gear faces are opposite two-by-two, and four are inserted
Pin face is opposite two-by-two；Each rack gear face is fixedly connected with the top of a lifter rack 2, and a bolt machine is installed in each bolt face
Structure 5.The rotating ring beam 1 is octagon, is conducive to being spacedly distributed for four lifter racks 2 and four bolt mechanisms 5, guarantees every
5 uniform force of root lifter rack 2 and each bolt mechanism.
Preferably, as shown in Fig. 2, lifting basis 4 is octagon, the spud leg 7 is passed through in the lifting basis 4
Portion's octagon through-hole；Lifting basis 4 sets that there are four face of gear and four lock pin faces, four face of gear and four rack gear faces one
One is corresponding, and four lock pin faces and four bolt faces correspond；Each face of gear installs two column lifting units 3, lifter rack 2
The lifting gear 32 of two column teeth and the two column lifting units 3 is engaged；Each lock pin face is equipped with a latch gear 6.
Lifting basis 4 is octagon, is conducive to being spacedly distributed for lifting unit 3 and latch gear 6, guarantees 3 He of lifting unit
6 uniform force of latch gear.
Preferably, as shown in Figure 1 and Figure 2, the spud leg 7 is cylinder, and the spud leg 7 is equipped with four charge off holes, every charge off
Hole corresponds to a bolt mechanism 5；The inside of the rotating ring beam 1 is equipped with spud leg receiving opening, and the spud leg receiving opening is circle.
The spud leg 7 is cylinder, easily fabricated and assembly；Since lifter rack 2 does not reside at spud leg 7, also unlike hydraulic bolt liter
Drop system needs guide plate to guide lift slide like that, pin hole only need to be arranged on spud leg 7, the spud leg 7 can also be square column
Shape or octagon.The spud leg receiving opening shape and spud leg 7 of rotating ring beam 1 are adapted.
Preferably, as shown in Fig. 2, the rotating ring beam 1 is arranged multiple guiding devices 11 in spud leg receiving opening, adjacent two
A guiding device 11 is equipped between a bolt mechanism 5, the guiding device 11 is wearing plate.Guiding device 11 and spud leg 7 are matched
It closes, rotating ring beam 1 is moved along spud leg 7 and is oriented to.
Preferably, as shown in Figure 1, the latch gear 6 further includes lock pin oil cylinder 62 and locking pin seat 63, the locking pin seat 63
It is installed on the lifting basis 4, the lock pin oil cylinder 62 is installed on one end of the locking pin seat 63, one end of the lock pin 61
It being connect with the piston of the lock pin oil cylinder 62, the other end of the lock pin 61 is inserted into corresponding pin hole after locking pin seat 63,
The outside of the locking pin seat 63 is cased with lock pin cushion, and the lock pin cushion includes several layers steel disc and several layers sheet rubber,
The steel disc and the sheet rubber are spaced apart.Lock pin 61 is driven sliding in the locking pin seat 63 by the lock pin oil cylinder 62
Dynamic, the lock pin 61 is ladder pin, plays the role of realizing radial constraint fastening to the spud leg 7.Outside the locking pin seat 63
Portion is equipped with lock pin cushion, and the lock pin cushion includes the several layers steel disc and several layers sheet rubber being spaced apart, to described
Latch gear 6 plays the role of vibration reduction and cushioning, mitigate the latch gear 6 caused by sea beat and the lifting basic 4 it
Between collision deformation, steel disc is arranged between sheet rubber, greatly strengthens the anti-pressure ability of cushion the lock pin cushion, full
The carrying demand of lumping weight load.
Preferably, it sets reset condition to be inserted on corresponding pin hole as the bolt axle 51 of all bolt mechanisms 5, and all
The lock pin 61 of latch gear 6 is inserted on corresponding pin hole；
Including promoting platform method:
Step A1, firstly, withdrawing the lock pin 61 of all latch gears 6, all rotations of lifting gear 32 make lifter rack 2
It moves down, a pitch until spud leg 7 sinks；Then, the lock pin 61 of all latch gears 6 is inserted into corresponding pin hole, receives
The bolt axle 51 of all bolt mechanisms 5 is returned, all rotations of lifting gear 32 make lifter rack 2 move up a pitch；
Step A2 repeats step A1 until spud leg 7 is fixed on sea bed, is then return to reset condition；
Step A3, firstly, withdrawing the lock pin 61 of all latch gears 6, all lifting gears 32 are upward along lifter rack 2
It is mobile, until offshore platform rises a pitch；Then, the lock pin 61 of all latch gears 6 is inserted into corresponding pin hole, withdraws
The bolt axle 51 of all bolt mechanisms 5, all rotations of lifting gear 32 make lifter rack 2 move up a pitch；
Step A4 repeats step A3 until offshore platform rises to specified altitude assignment, is then return to the original shape
State.
The promotion platform method is that the rack-and-pinion bolt jacking system completes lower stake and peaceful is waited operation process
Method.When lower stake, step A1 is executed, spud leg 7 is only connected with rotating ring beam 1, thus by driving lifter rack 2 to move down i.e.
Spud leg 7 can be made to sink, and spud leg 7 is only connected with lifting basis 4 after one pitch of every sinking, to drive 2 band of lifter rack
Rotating ring beam 1 rise a pitch, with prepare next time sinking movement.Similarly, peaceful when execute step A3, spud leg 7 is only
It is connected with rotating ring beam 1, to can be made on offshore platform by driving all lifting gears 32 to move up along lifter rack 2
It rises, and spud leg 7 is only connected with lifting basis 4 after one pitch of every rising, to drive lifter rack 2 on rotating ring beam 1
A pitch is risen, to prepare vertical motion next time.
Preferably, further include decline platform method:
Step B1, firstly, withdrawing the lock pin 61 of all latch gears 6, all lifting gears 32 are downward along lifter rack 2
It is mobile, until offshore platform declines a pitch；Then, the lock pin 61 of all latch gears 6 is inserted into corresponding pin hole, withdraws
The bolt axle 51 of all bolt mechanisms 5, all rotations of lifting gear 32 make lifter rack 2 move down a pitch；
Step B2 repeats step B1 until offshore platform drops to sea level, is then return to the original shape
State；
Step B3, firstly, withdrawing the lock pin 61 of all latch gears 6, all rotations of lifting gear 32 make lifter rack 2
It moves up, until spud leg 7 rises a pitch；Then, the lock pin 61 of all latch gears 6 is inserted into corresponding pin hole, receives
The bolt axle 51 of all bolt mechanisms 5 is returned, all rotations of lifting gear 32 make lifter rack 2 move down a pitch；
Step B4 repeats step B3 until spud leg 7 is retracted to offshore platform, is then return to the original shape
State.
The decline platform method is that the rack-and-pinion bolt jacking system completes drop platform and receives the operation process such as stake
Method.When dropping platform, step B1 is executed, spud leg 7 is only connected with rotating ring beam 1, thus by all lifting gears 32 along lifting
Rack gear 2 moves down, and offshore platform can be made to decline, and spud leg 7 is only connected with lifting basis 4 after one pitch of every decline,
To drive lifter rack 2 to move down a pitch with rotating ring beam 1, to prepare lowering action next time.Similarly, stake is received
Shi Zhihang step B3, spud leg 7 are only connected with rotating ring beam 1, to can be made on spud leg 7 by driving lifter rack 2 to move up
Rise, and after one pitch of every risings spud leg 7 only with lifting basis 4 connection, thus drive lifter rack 2 with rotating ring beam 1 to
One pitch of lower movement, to prepare vertical motion next time.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of rack-and-pinion bolt jacking system, the rack-and-pinion bolt jacking system is set on spud leg, and feature exists
In: offshore platform is installed on including rotating ring beam, lifter rack, lifting unit, lifting basis and bolt mechanism, the lifting basis
Deck on, the lifting unit is installed on lifting basis；
The lifting unit includes lifting tooth wheel shaft, lifting gear and driving device, and the lifting gear is sheathed on the lifting
The other end of one end of gear shaft, the lifting tooth wheel shaft is connected with driving device；
The rotating ring beam casing is on the spud leg, and the rotating ring beam is located at the top on the lifting basis, the lifting tooth
The top of item is fixedly connected integrally with rotating ring beam, and the bottom end of the lifter rack passes through lifting basis, and the lifting tooth
Item and lifting gear engagement；
The lifter rack is parallel to the axis setting of the spud leg, and the bolt mechanism is set on the rotating ring beam, described
Multiple pin holes are arranged in spud leg evenly and at intervals in the axial direction, and the bolt axle and pin hole of the bolt mechanism are corresponding；
Latch gear is additionally provided on the basis of the lifting, the latch gear is located at the underface of the bolt mechanism, the lock
The lock pin and pin hole of pin mechanism are corresponding.
2. rack-and-pinion bolt jacking system according to claim 1, it is characterised in that: the two sides pair of the lifter rack
Claim to be equipped with two column lifting units, two column teeth of the lifter rack and the lifting gear of two column lifting units are engaged；
The top of the lifter rack is close to the top of two column lifting units.
3. rack-and-pinion bolt jacking system according to claim 2, it is characterised in that: the circumferencial direction along spud leg is equipped with
Four lifter racks, four lifter racks are opposite two-by-two；
It sets along the circumferencial direction of spud leg there are four bolt mechanism, four bolt mechanisms are opposite two-by-two, and adjacent two lifting tooths
One bolt mechanism is set between item；
It sets along the circumferencial direction of spud leg there are four latch gear, the latch gear and bolt mechanism are corresponding up and down one by one.
4. rack-and-pinion bolt jacking system according to claim 3, it is characterised in that: the rotating ring beam is octagon,
The rotating ring beam is set there are four rack gear face and four bolt faces, a bolt face is arranged between two rack gear faces, i.e.,
Four rack gear faces are opposite two-by-two, and four institute's bolt faces are opposite two-by-two；Each rack gear face and the top of a lifter rack are solid
A bolt mechanism is installed in fixed connection, each bolt face.
5. rack-and-pinion bolt jacking system according to claim 4, it is characterised in that: the lifting basis is eight sides
Shape, the spud leg pass through the middle part octagon through-hole on the lifting basis；The lifting basis is set there are four face of gear and four
Lock pin face, four face of gear and four rack gear faces correspond, and four lock pin faces and four bolt faces correspond；
Each face of gear installs two column lifting units, the lifting gear pair of two column teeth of lifter rack and the two column lifting units
It should engage；Each lock pin face is equipped with a latch gear.
6. rack-and-pinion bolt jacking system according to claim 4, it is characterised in that: the spud leg is cylinder, institute
Spud leg is stated equipped with four charge off holes, the corresponding bolt mechanism of each column pin hole；The inside of the rotating ring beam, which is equipped with spud leg and accommodates, to be led to
Hole, the spud leg receiving opening are circle.
7. rack-and-pinion bolt jacking system according to claim 6, it is characterised in that: the rotating ring beam is accommodated in spud leg
Multiple guiding devices are set in through-hole, a guiding device is equipped between two neighboring bolt mechanism, the guiding device is resistance to
Nog plate.
8. rack-and-pinion bolt jacking system according to claim 4, it is characterised in that: the latch gear further includes lock
Oil cylinder and locking pin seat are sold, the locking pin seat is installed on the lifting basis, and the lock pin oil cylinder is installed on the one of the locking pin seat
End, one end of the lock pin are connect with the piston of the lock pin oil cylinder, and the other end of the lock pin is inserted after locking pin seat
Enter corresponding pin hole, the outside of the locking pin seat is cased with lock pin cushion, if the lock pin cushion include several layers steel disc and
Dried layer sheet rubber, the steel disc and the sheet rubber are spaced apart.
9. the elevating method of rack-and-pinion bolt jacking system according to claim 4, it is characterised in that:
Reset condition is set to be inserted on corresponding pin hole as the bolt axle of all bolt mechanisms and the lock pin of all latch gears
Axis is inserted on corresponding pin hole；
Including promoting platform method:
Step A1, firstly, withdrawing the lock pin of all latch gears, all lifting gear rotations move down lifter rack,
A pitch until spud leg sinks；Then, the lock pin of all latch gears is inserted into corresponding pin hole, withdraws all bolt mechanisms
Bolt axle, the rotation of all lifting gears makes lifter rack move up a pitch；
Step A2 repeats step A1 until spud leg is fixed on sea bed, is then return to the reset condition；
Step A3, firstly, withdrawing the lock pin of all latch gears, all lifting gears are moved up along lifter rack, until
Offshore platform rises a pitch；Then, the lock pin of all latch gears is inserted into corresponding pin hole, withdraws all bolt mechanisms
Bolt axle, the rotation of all lifting gears makes lifter rack move up a pitch；
Step A4 repeats step A3 until offshore platform rises to specified altitude assignment, is then return to the reset condition.
10. the elevating method of rack-and-pinion bolt jacking system according to claim 9, which is characterized in that under further including
Platform method drops:
Step B1, firstly, withdrawing the lock pin of all latch gears, all lifting gears are moved down along lifter rack, until
Offshore platform declines a pitch；Then, the lock pin of all latch gears is inserted into corresponding pin hole, withdraws all bolt mechanisms
Bolt axle, the rotation of all lifting gears makes lifter rack move down a pitch；
Step B2 repeats step B1 until offshore platform drops to sea level, is then return to the reset condition；
Step B3, firstly, withdrawing the lock pin of all latch gears, all lifting gear rotations move up lifter rack,
Until spud leg rises a pitch；Then, the lock pin of all latch gears is inserted into corresponding pin hole, withdraws all bolt mechanisms
Bolt axle, the rotation of all lifting gears makes lifter rack move down a pitch；
Step B4 repeats step B3 until spud leg is retracted to offshore platform, is then return to the reset condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811213492.7A CN109371949A (en) | 2018-10-18 | 2018-10-18 | A kind of rack-and-pinion bolt jacking system and its elevating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811213492.7A CN109371949A (en) | 2018-10-18 | 2018-10-18 | A kind of rack-and-pinion bolt jacking system and its elevating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109371949A true CN109371949A (en) | 2019-02-22 |
Family
ID=65400206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811213492.7A Pending CN109371949A (en) | 2018-10-18 | 2018-10-18 | A kind of rack-and-pinion bolt jacking system and its elevating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109371949A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401836A (en) * | 2021-07-13 | 2021-09-17 | 广东精铟海洋工程股份有限公司 | Gear rack lifting device for deep sea aquaculture net cage |
| CN114855739A (en) * | 2022-05-24 | 2022-08-05 | 中船黄埔文冲船舶有限公司 | Arrangement structure of lifting system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5932614B2 (en) * | 1981-11-24 | 1984-08-09 | 三井海洋開発株式会社 | Offshore work platform pedestal “locking” device |
| CN103334416A (en) * | 2013-07-16 | 2013-10-02 | 四川宏华石油设备有限公司 | Lifting device |
| CN104372780A (en) * | 2014-11-03 | 2015-02-25 | 上海航盛船舶设计有限公司 | Continuous lifting mechanism of self-elevating platform |
| CN105970894A (en) * | 2016-05-19 | 2016-09-28 | 武汉船用机械有限责任公司 | Combined type hydraulic lifting platform device with inserted pins |
| CN106013028A (en) * | 2016-05-19 | 2016-10-12 | 武汉船用机械有限责任公司 | Ocean platform lifting device |
| CN108104090A (en) * | 2017-11-03 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of hydraulic bolt lifting gear |
-
2018
- 2018-10-18 CN CN201811213492.7A patent/CN109371949A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5932614B2 (en) * | 1981-11-24 | 1984-08-09 | 三井海洋開発株式会社 | Offshore work platform pedestal “locking” device |
| CN103334416A (en) * | 2013-07-16 | 2013-10-02 | 四川宏华石油设备有限公司 | Lifting device |
| CN104372780A (en) * | 2014-11-03 | 2015-02-25 | 上海航盛船舶设计有限公司 | Continuous lifting mechanism of self-elevating platform |
| CN105970894A (en) * | 2016-05-19 | 2016-09-28 | 武汉船用机械有限责任公司 | Combined type hydraulic lifting platform device with inserted pins |
| CN106013028A (en) * | 2016-05-19 | 2016-10-12 | 武汉船用机械有限责任公司 | Ocean platform lifting device |
| CN108104090A (en) * | 2017-11-03 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of hydraulic bolt lifting gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401836A (en) * | 2021-07-13 | 2021-09-17 | 广东精铟海洋工程股份有限公司 | Gear rack lifting device for deep sea aquaculture net cage |
| CN114855739A (en) * | 2022-05-24 | 2022-08-05 | 中船黄埔文冲船舶有限公司 | Arrangement structure of lifting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110481723B (en) | Automatic lifting and locking device and method for offshore floating platform | |
| CN106087932B (en) | A kind of bolt elevating mechanism for jack-up unit | |
| CN109371949A (en) | A kind of rack-and-pinion bolt jacking system and its elevating method | |
| CN207275956U (en) | A kind of screw type domestic elevator of magneto driving | |
| CN202323912U (en) | Lifting mechanism for self-lifting platform, and self-lifting platform | |
| CN102979339B (en) | Multi-layer pit-type hydraulic driving three-dimensional garage | |
| CN104590977A (en) | Compound apartment indoor elevator | |
| CN101920922A (en) | Automobile lifter with safety device at front end | |
| CN211817864U (en) | Attached lifting scaffold | |
| CN203701678U (en) | Postpositioned driving and steel cable drawing system for parking equipment | |
| CN211817865U (en) | Supporting structure is adjusted to assembly type structure | |
| CN114855739B (en) | Lifting system arrangement structure | |
| CN114899951A (en) | Automatic connection and parking system for gravity energy storage of multiple objects | |
| CN105625288B (en) | A kind of lowering or hoisting gear of jack-up unit | |
| CN201834706U (en) | Automobile lifter with front-mounted safety device | |
| CN201013090Y (en) | Pit type solid garage falling-proof structure | |
| CN108529514B (en) | The continuous jacking system of spiral bolt-type and its elevating method for offshore platform | |
| CN217175995U (en) | Large-span vertical lifting stereo garage flat bed positioning mechanism | |
| CN102383410B (en) | Offshore drilling platform lift control device | |
| CN201597758U (en) | Elevating mechanism for boarding vehicle of airplane | |
| CN204434026U (en) | A kind of compound apartment indoor elevator | |
| CN201250040Y (en) | Pitless wall-attached elevator | |
| CN2644655Y (en) | K-type jack-up headframe | |
| CN108824404B (en) | Truss spud leg hydraulic bolt lift platform | |
| CN207986446U (en) | Top supernumerary segment extends downwardly formula transport device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190222 |
|
| RJ01 | Rejection of invention patent application after publication |