CN105421323B - A kind of lifting of ocean platform system and ocean platform - Google Patents
A kind of lifting of ocean platform system and ocean platform Download PDFInfo
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- CN105421323B CN105421323B CN201510703380.XA CN201510703380A CN105421323B CN 105421323 B CN105421323 B CN 105421323B CN 201510703380 A CN201510703380 A CN 201510703380A CN 105421323 B CN105421323 B CN 105421323B
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- climbing
- rack
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- ocean platform
- climbing pinion
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a kind of lifting of ocean platform system and ocean platform, belong to field of ocean engineering.The ocean platform includes ocean platform body, spud leg and jacking system, the jacking system is included along the axis rack being arranged on the spud leg of the spud leg and the multiple climbing pinions being arranged on the ocean platform body, the multiple climbing pinion engages with the rack respectively, and the phase angle of each moment the multiple climbing pinion is different.The present invention by the phase angle of multiple climbing pinions of each moment by being arranged to different, so that the instantaneous registration of each climbing pinion and rack is different, be not in the phase angle identical situation of each climbing pinion synchronization, improve the bearing capacity of jacking system.
Description
Technical field
The present invention relates to field of ocean engineering, more particularly to a kind of lifting of ocean platform system and ocean platform.
Background technology
To meet offshore and gas development demand, the country set foot in offshore and gas development oil company need to equip it is a great deal of
Self-elevating ocean platform.Jacking system is the key components of self-elevating ocean platform, and conventional jacking system has hydraulic pressure
Formula and the class of pinion and-rack two.
Pinion and-rack jacking system include along spud leg the rack being axially disposed within spud leg and be arranged on ocean and put down
Multiple climbing pinions on playscript with stage directions body, multiple climbing pinions engage with rack, by driving multiple climbing pinion up times
Pin rotates or rotated counterclockwise the lifting for realizing ocean platform.Wherein, the phase angle of each climbing pinion synchronization (is climbed
Little gear and tooth end and the line at the center of climbing pinion that rack engages and horizontal angle) it is identical.
During the present invention is realized, inventor has found that prior art at least has problems with：
The instantaneous registration of climbing pinion and rack is different during the phase angle difference of climbing pinion, can influence to climb
Rise little gear and the engagement (monodentate engagement, bi-tooth gearing etc.) of rack.The phase angle of each climbing pinion synchronization
It is identical, then the instantaneous registration of sometime all climbing pinions and rack can be caused all to reach minimum, limit lifting system
The bearing capacity of system.
The content of the invention
The instantaneous registration of sometime all climbing pinions and rack can be caused all to reach to solve prior art
Minimum, the problem of limiting the bearing capacity of jacking system, the embodiments of the invention provide a kind of lifting of ocean platform system and
Ocean platform.The technical scheme is as follows：
On the one hand, a kind of lifting of ocean platform system, the ocean platform include ocean platform body, spud leg, Yi Jisheng
Drop system, the jacking system include the rack being arranged on along the axis of the spud leg on the spud leg and are arranged on described
Multiple climbing pinions on ocean platform body, the multiple climbing pinion engage with the rack respectively, each moment
The phase angle of the multiple climbing pinion is different；
The multiple climbing pinion includes n-layer climbing pinion, and n >=2 and n are integer, every on each rack
The layer climbing pinion includes two climbing pinions engaged with the not homonymy of the rack,
The distance between climbing pinion L meets following public described in the adjacent two layers that the same side is engaged on the same rack
Formula：
L=i* π * m ± (β/360) * π * m*z；
The height difference H of two climbing pinions of same layer meets equation below on the same rack：
H=(1/2) * (β/360) * π * m*z；
Wherein, i is positive integer, and m is the modulus of the climbing pinion, and β is the same side engagement on the same rack
The difference at the phase angle of climbing pinion described in adjacent two layers, β=360/ (z*n), z be the climbing pinion the number of teeth, n=3.
Specifically, each climbing pinion is arranged on the inside of different planetary reduction box, planetary reduction gear described in L ＞
The length of case.
Alternatively, the same spud leg is provided with three racks, each rack respectively with it is corresponding described
Multiple climbing pinion engagements.
On the other hand, the embodiments of the invention provide a kind of ocean platform, the ocean platform include ocean platform body,
Spud leg and jacking system, the jacking system include along the axis of the spud leg be arranged on rack on the spud leg and
The multiple climbing pinions being arranged on the ocean platform body, the multiple climbing pinion are nibbled with the rack respectively
Close, the phase angle of each moment the multiple climbing pinion is different；
The multiple climbing pinion includes n-layer climbing pinion, and n >=2 and n are integer, every on each rack
The layer climbing pinion includes two climbing pinions engaged with the not homonymy of the rack,
The distance between climbing pinion L meets following public described in the adjacent two layers that the same side is engaged on the same rack
Formula：
L=i* π * m ± (β/360) * π * m*z；
The height difference H of two climbing pinions of same layer meets equation below on the same rack：
H=(1/2) * (β/360) * π * m*z；
Wherein, i is positive integer, and m is the modulus of the climbing pinion, and β is the same side engagement on the same rack
The difference at the phase angle of climbing pinion described in adjacent two layers, β=360/ (z*n), z be the climbing pinion the number of teeth, n=3.
Specifically, each climbing pinion is arranged on the inside of different planetary reduction box, planetary reduction gear described in L ＞
The length of case.
Alternatively, the same spud leg is provided with three racks, each rack respectively with it is corresponding described
Multiple climbing pinion engagements.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
By the way that the phase angle of multiple climbing pinions of each moment is arranged into different so that each climbing pinion
It is different with the instantaneous registration of rack, be not in the phase angle identical situation of each climbing pinion synchronization,
Improve the bearing capacity of jacking system.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structural representation for lifting of ocean platform system that the embodiment of the present invention one provides；
Fig. 2 is the schematic diagram at the phase angle for the climbing pinion that the embodiment of the present invention one provides；
Fig. 3 is the rack that the embodiment of the present invention one provides and the setting schematic diagram of climbing pinion.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
The embodiments of the invention provide a kind of lifting of ocean platform system, ocean platform include ocean platform body, spud leg,
And jacking system, referring to Fig. 1, jacking system includes the rack 1 being arranged on along the axis of spud leg on spud leg and is arranged on sea
Multiple climbing pinions 2 on foreign platform body, multiple climbing pinions engage with rack 1 respectively.
In the present embodiment, the phase angle of multiple climbing pinions 2 of each moment is different.Wherein, referring to Fig. 2, climb
Rise the center of the tooth end phase angle of little gear 2 engaged with rack 1 for climbing pinion 2 and climbing pinion 2 line and
Horizontal angle α.
Alternatively, referring to Fig. 3, three racks 1 can be provided with same spud leg, each rack 1 respectively with it is corresponding more
Individual climbing pinion 2 engages, to adapt to the arrangement of most of ocean platform.
In actual applications, multiple climbing pinions can include n-layer climbing pinion 2, and n >=2 and n are integer, each
Every layer of climbing pinion 2 on rack 1 includes two climbing pinions 2 engaged with the not homonymy of rack 1.
Alternatively, 2≤n≤6.It is readily apparent that, if n ＜ 1, the stability and bearing capacity of jacking system are with regard to poor；If n
＞ 6, then improve the manufacturing cost and use cost of jacking system.
Preferably, n=3, to adapt to the arrangement of most of ocean platform.
Preferably, the distance between the adjacent two layers climbing pinion 2 that the same side is engaged on same rack 1 L meets as follows
Formula (1)：
L=i* π * m ± (β/360) * π * m*z； (1)
The height difference H of two climbing pinions 2 of same layer meets equation below (2) on same rack 1：
H=(1/2) * (β/360) * π * m*z； (2)
Wherein, i is positive integer, and m is the modulus of climbing pinion 1, and β is adjacent two of the same side engagement on same rack 1
The difference at the phase angle of layer climbing pinion 2, β=360/ (z*n), z are the number of teeth of climbing pinion 2.
It is readily apparent that, the tooth pitch=girth of climbing pinion/of π * m (modulus of climbing pinion)=climbing pinion is climbed
The number of teeth of little gear is risen, therefore i* π * m represent phase between the adjacent two layers climbing pinion 2 that the same side is engaged on same rack 1
Every the tooth pitch of i climbing pinion, the phase angle of the adjacent two layers climbing pinion 2 engaged to the same side on same rack 1 it
Difference does not influence.β=360/ (z*n) simultaneously, (β/360) * π * m*z=[360/ (z*n)/360] * π * m*z=π * m/n, therefore
The difference at the phase angle for the adjacent two layers climbing pinion 2 that the same side is engaged is (360/z)/n on same rack 1.
Similarly, (1/2) * (β/360) * π * m*z=(1/2) * [360/ (z*n)/360] * π * m*z=(1/2) * (π * m/
N), the difference at the phase angle of two climbing pinions 2 of same layer is (1/2) * (360/z)/n on same rack.
It is to be appreciated that when the difference at the phase angle for the adjacent two layers climbing pinion 2 that the same side is engaged on same rack 1 is
(360/z)/n, when the difference at the phase angle of two climbing pinions 2 of same layer is (1/2) * (360/z)/n on same rack 1,
The phase angle of each climbing pinion 2 engaged on same rack 1 is equally distributed, each moment multiple Hes of climbing pinion 2
The overall instantaneous registration of rack 1 can keep stable, improve the stability and bearing capacity of jacking system.
It should be noted that the difference at the phase angle of each climbing pinion 2 engaged on same rack 1 and climbing pinion 2
The distance between, there is corresponding relation between the height difference H of climbing pinion 2, wherein, what formula (1) represented is same rack 1
The distance between the adjacent two layers climbing pinion 2 of upper the same side engagement L and the adjacent two layers that the same side is engaged on same rack 1
Corresponding relation between the difference β at the phase angle of climbing pinion 2, that formula (2) represents is two of same layer on same rack 1
The difference β at the phase angle for the adjacent two layers climbing pinion 2 that the same side is engaged in the height difference H of climbing pinion 2 and same rack 1
Between corresponding relation.
According to above-mentioned corresponding relation, when the phase angle of the adjacent two layers climbing pinion 2 that the same side is engaged on same rack 1
Difference need when be (360/z)/n, (360/z)/n is climbed small tooth as the adjacent two layers of the same side engagement on same rack 1
The difference at the phase angle of wheel 2 substitute into formula (1) calculate the adjacent two layers climbing pinion 2 that the same side on same rack 1 engages it
Between distance L, and set according to the result that calculates, you can realize that the adjacent two layers that the same side is engaged on same rack 1 climb
The difference at the phase angle of little gear 2 reaches (360/z)/n.
Similarly, when the difference at the phase angle of two climbing pinions 2 of same layer on same rack 1 needs to be (1/2) *
, will during (360/z)/n (half of the difference at the phase angle for the adjacent two layers climbing pinion 2 that the same side is engaged on same rack 1)
The difference at the phase angle for the adjacent two layers climbing pinion 2 that (360/z)/n engages as the same side on same rack 1 substitutes into formula
(2) height difference H of two climbing pinions 2 of same layer on same rack 1 is calculated, and is arranged according to the result calculated, i.e.,
The difference that the phase angle of two climbing pinions 2 of same layer on same rack can be achieved reaches (1/2) * (360/z)/n.
In addition, the condition except meeting formula (1) and formula (2), due to the phase of each climbing pinion 2 of each moment
Angle is different, therefore the phase angle of each climbing pinion engaged on same rack gradually increases according to the direction of zigzag
Or it is gradually reduced.
In summary, the phase angle of each climbing pinion 2 of each moment is different, each climbing pinion 2 and tooth
The instantaneous registration of bar 1 is different, and the instantaneous registration for being not in each synchronization of climbing pinion 2 all reaches minimum
Situation, improve the bearing capacity of jacking system.And the adjacent two layers climbing pinion that the same side is engaged on same rack 1
The difference at 2 phase angle is identical, and the difference at the phase angle of two climbing pinions 2 of same layer is also identical, therefore each small tooth that climbs
The phase angle of wheel 2 is equally distributed, and each moment multiple climbing pinions 2 and the overall instantaneous registration of rack 1 can be protected
It is fixed to keep steady, and further increases the stability and bearing capacity of jacking system.
In the specific implementation, each climbing pinion can be arranged on the inside of different planetary reduction box, L ＞ planets subtract
The length of fast case.
The embodiment of the present invention by the phase angle of multiple climbing pinions of each moment by being arranged to different so that each
The instantaneous registration of individual climbing pinion and rack is different, is not in the phase angle of each climbing pinion synchronization
Identical situation, improve the bearing capacity of jacking system.
Embodiment two
The embodiments of the invention provide a kind of ocean platform, ocean platform includes ocean platform body, spud leg and lifting
System.
In the present embodiment, the jacking system can be identical with the jacking system that embodiment one provides, and will not be described in detail herein.
The embodiment of the present invention by the phase angle of multiple climbing pinions of each moment by being arranged to different so that each
The instantaneous registration of individual climbing pinion and rack is different, is not in the phase angle of each climbing pinion synchronization
Identical situation, improve the bearing capacity of jacking system.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (6)
1. a kind of lifting of ocean platform system, the ocean platform includes ocean platform body, spud leg and jacking system, institute
State jacking system include along the spud leg the rack that is arranged on the spud leg of axis and be arranged on the ocean platform sheet
Multiple climbing pinions on body, the multiple climbing pinion engage with the rack respectively, it is characterised in that each moment
The phase angle of the multiple climbing pinion is different；
The multiple climbing pinion includes n-layer climbing pinion, and n >=2 and n are integer, every layer of institute on each rack
Stating climbing pinion includes two climbing pinions engaged with the not homonymy of the rack,
The distance between climbing pinion L meets equation below described in the adjacent two layers that the same side is engaged on the same rack：
L=i* π * m ± (β/360) * π * m*z；
The height difference H of two climbing pinions of same layer meets equation below on the same rack：
H=(1/2) * (β/360) * π * m*z；
Wherein, i is positive integer, and m is the modulus of the climbing pinion, and β is the adjacent of the same side engagement on the same rack
The difference at the phase angle of two layers of climbing pinion, β=360/ (z*n), z be the climbing pinion the number of teeth, n=3.
2. lifting of ocean platform system according to claim 1, it is characterised in that each climbing pinion is arranged on
The inside of different planetary reduction box, the length of planetary reduction box described in L ＞.
3. lifting of ocean platform system according to claim 1 or 2, it is characterised in that the same spud leg is provided with
Three racks, each rack engage with corresponding the multiple climbing pinion respectively.
4. a kind of ocean platform, the ocean platform includes ocean platform body, spud leg and jacking system, the lifting system
System includes the rack being arranged on along the axis of the spud leg on the spud leg and is arranged on more on the ocean platform body
Individual climbing pinion, each moment the multiple climbing pinion engage with the rack respectively, it is characterised in that the multiple
The phase angle of climbing pinion is different；
The multiple climbing pinion includes n-layer climbing pinion, and n >=2 and n are integer, every layer of institute on each rack
Stating climbing pinion includes two climbing pinions engaged with the not homonymy of the rack,
The distance between climbing pinion L meets equation below described in the adjacent two layers that the same side is engaged on the same rack：
L=i* π * m ± (β/360) * π * m*z；
The height difference H of two climbing pinions of same layer meets equation below on the same rack：
H=(1/2) * (β/360) * π * m*z；
Wherein, i is positive integer, and m is the modulus of the climbing pinion, and β is the adjacent of the same side engagement on the same rack
The difference at the phase angle of two layers of climbing pinion, β=360/ (z*n), z be the climbing pinion the number of teeth, n=3.
5. ocean platform according to claim 4, it is characterised in that each climbing pinion is arranged on different rows
The inside of star reduction box, the length of planetary reduction box described in L ＞.
6. the ocean platform according to claim 4 or 5, it is characterised in that the same spud leg is provided with described in three
Rack, each rack engage with corresponding the multiple climbing pinion respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703380.XA CN105421323B (en) | 2015-10-26 | 2015-10-26 | A kind of lifting of ocean platform system and ocean platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703380.XA CN105421323B (en) | 2015-10-26 | 2015-10-26 | A kind of lifting of ocean platform system and ocean platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105421323A CN105421323A (en) | 2016-03-23 |
| CN105421323B true CN105421323B (en) | 2017-12-15 |
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ID=55499835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510703380.XA Active CN105421323B (en) | 2015-10-26 | 2015-10-26 | A kind of lifting of ocean platform system and ocean platform |
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| CN (1) | CN105421323B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936486B (en) * | 2016-05-26 | 2018-10-30 | 武汉船用机械有限责任公司 | A kind of lifting of ocean platform mechanism and ocean platform |
| CN109537558B (en) * | 2018-09-25 | 2020-12-08 | 武汉船用机械有限责任公司 | Load balance control method and control device of lifting system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5915882A (en) * | 1997-06-26 | 1999-06-29 | Letourneau, Inc. | Jack-up platform locking apparatus and method |
| CN102996735B (en) * | 2011-09-15 | 2016-02-24 | 山东科瑞机械制造有限公司 | A kind of method improving jack-up unit gear rack lowering or hoisting gear bearing capacity |
| CN202971782U (en) * | 2012-12-10 | 2013-06-05 | 中联重科股份有限公司 | Gear rack meshing mechanism, lifting mechanism and hoisting machinery |
| CN203821358U (en) * | 2014-01-21 | 2014-09-10 | 武汉船用机械有限责任公司 | Gear and rack type platform lifting system |
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