CN106192963A - A kind of retaining mechanism of jack-up unit - Google Patents
A kind of retaining mechanism of jack-up unit Download PDFInfo
- Publication number
- CN106192963A CN106192963A CN201610596432.2A CN201610596432A CN106192963A CN 106192963 A CN106192963 A CN 106192963A CN 201610596432 A CN201610596432 A CN 201610596432A CN 106192963 A CN106192963 A CN 106192963A
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- China
- Prior art keywords
- locking
- jack
- skewback
- retaining mechanism
- installing rack
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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
- E02B17/06—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for immobilising, e.g. using wedges or clamping rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses the retaining mechanism of a kind of jack-up unit, including: installing rack, two locking devices, two locking devices are arranged symmetrically in the both sides of spud leg tooth bar, each described locking device includes: locking skewback, two locking teeth blocks, the level jack being connected with locking skewback being fixed on installing rack, connecting plate, it is arranged on the retractor device on locking skewback, on the supporting surface of two locking teeth blocks be separately mounted to lock the V-groove of skewback two, connecting plate is arranged at the side of locking teeth block, two are bolted on two locking teeth blocks and are inserted in the kidney slot on connecting plate, the telescopic end of retractor device is connected with connecting plate.By the vertical load on the spud leg of jack-up unit is delivered on installing rack by locking teeth block and locking skewback, so, the vertical load needing the vertical jack that cost is high to provide in the prior art is directly provided by installing rack, and the cost of retaining mechanism so can be greatly reduced.
Description
Technical field
The present invention relates to drilling platforms accessory field, particularly to the retaining mechanism of a kind of jack-up unit.
Background technology
Gear rack lifting system is the important device of jack-up unit, and jack-up unit gear rack lifting system is usual
It is equipped with retaining mechanism, is used for spud leg and jack-up unit firmly to lock to resist the load under storm operating mode.
The retaining mechanism of existing gear rack lifting system includes installing rack, two level jack, two vertical oil
Cylinder, four vertical jack, two voussoir tooth bars and four skewbacks, two voussoir tooth bars are prismatoid structure, and prismatoid
Bottom surface positioned opposite, the bottom surface of prismatoid is provided with the tooth being meshed with spud leg tooth bar, two voussoir tooth bars are respectively provided with
In the left and right sides of spud leg tooth bar and be able to be meshed with spud leg tooth bar, the telescopic end of two level jack is respectively mounted
On the end face of two prismatoids, this level jack can promote voussoir tooth bar close to spud leg tooth bar direction, and two vertically
The telescopic end of the vertical oil cylinder arranged is separately mounted on two voussoir tooth bars, and this vertical oil cylinder can make voussoir tooth bar vertically
Direction is moved, thus adjusts the vertical position of voussoir tooth bar, by level jack and the cooperation of vertical oil cylinder, makes voussoir tooth bar
Pin spud leg tooth bar, four vertical jack are in transmission connection with four skewbacks respectively, when two voussoir tooth bars respectively with spud leg tooth
When bar is meshed, four skewbacks are withstood on the inclined-plane at two ends up and down of two prismatoids by the effect of vertical jack respectively, this
Four skewbacks achieve the purpose of two the voussoir tooth bars reinforcing locking state, prevent voussoir tooth bar from moving.
During realizing the present invention, inventor finds that prior art at least there is problems in that
Generally retaining mechanism to bear bigger vertical load under storm operating mode, and the most common for locking
The driving source undertaking vertical load in tight mechanism is two vertical jack below two voussoir tooth bars, and the two is the most very heavy
Top needs to undertake the load of thousands of tons of, it is possible to the price meeting the vertical jack required is much more expensive, and this improves whole lock
The cost of tight mechanism.
Summary of the invention
In order to solve the expensive problem of jack of the vertical direction that retaining mechanism uses, the present invention in prior art
Embodiment provides the retaining mechanism of a kind of jack-up unit.Described technical scheme is as follows:
Embodiments providing the retaining mechanism of a kind of jack-up unit, described retaining mechanism includes: be fixed on certainly
Installing rack on lift-type platform and two locking devices, said two locking device is arranged symmetrically in the stake of described jack-up unit
The both sides of lower limb tooth bar,
Each described locking device includes: locking skewback, two locking teeth blocks, the level thousand that is fixed on described installing rack
Jin top, connecting plate, retractor device,
The two ends up and down of described locking skewback are slidably fitted on described installing rack, the one of described locking skewback
Vertically being provided with a V-groove on individual side, described V-shaped groove includes two symmetrical supporting surfaces, said two locking teeth
Block is separately mounted on two described supporting surfaces, the telescopic end of described level jack be connected to described locking skewback with described
On the side that V-groove is contrary,
Each described locking teeth block includes the field of conjugate action and the inclined-plane coordinated with described supporting surface, and described inclined-plane and described nibble
Conjunction face is two sides that described locking teeth block is contrary, and the described field of conjugate action is provided with the tooth engaged with described spud leg tooth bar, described
Supporting surface is provided with the slide rail arranged along described supporting surface bearing of trend, and described inclined-plane is provided with the cunning matched with described slide rail
Block,
The two ends up and down of described connecting plate are also slidably mounted on described installing rack, and described connecting plate is positioned at described locking
Skewback side, described connecting plate is provided with two kidney slots and said two kidney slot along same straight-line extension, two described kidney-shapeds
Being respectively equipped with bolt in groove, two described bolts are connected on two described locking teeth blocks,
The telescopic end of described retractor device is arranged on described connecting plate, and the fixing end of described retractor device is arranged on described
On locking skewback, and the telescopic direction of described retractor device is identical with the telescopic direction of described level jack.
In a kind of possible implementation of the present invention, divide between the described upper and lower two ends of locking skewback and described installing rack
Not being provided with guide rail, the two ends up and down of described locking skewback are slidably mounted on the described guide rail of correspondence respectively.
In the alternatively possible implementation of the present invention, in described guide rail, it is provided with wearing plate, described locking skewback
Two ends are coordinated with described slide by described wearing plate up and down.
In the alternatively possible implementation of the present invention, described installing rack is parallel to described guide rail and is provided with pair and leads
Rail, the two ends up and down of described connecting plate are slidably mounted in described secondary guide rail respectively.
In the alternatively possible implementation of the present invention, described installing rack is provided with gripper shoe, and described gripper shoe is divided
Do not fix with described installing rack and described guide rail and be connected.
In the alternatively possible implementation of the present invention, described slide block is T-shaped slide block, and described slide rail is that I shape is sliding
Rail.
In the alternatively possible implementation of the present invention, each described locking device includes two described connections respectively
Plate, and said two connecting plate is respectively arranged at the both sides of described locking skewback.
In the alternatively possible implementation of the present invention, described retractor device is oil cylinder.
In the alternatively possible implementation of the present invention, described level jack is screw jack.
In the alternatively possible implementation of the present invention, described level jack sets with the junction of described installing rack
There is reinforcement.
The technical scheme that the embodiment of the present invention provides is had the benefit that and is controlled by horizontally disposed retractor device
Position between connecting plate and locking skewback, thus regulation is slidably mounted on two locking teeth blocks on locking skewback and connecting plate
Between distance, it is achieved between locking teeth block and spud leg tooth bar to tooth, will locking skewback and locking teeth by level jack
Block is pressed on spud leg tooth bar, and now, the vertical load on the spud leg of jack-up unit can be delivered to locking tiltedly by locking teeth block
On block, and by locking skewback, vertical load is delivered on installing rack, so, needs high vertical of cost in the prior art
The vertical load that jack provides directly is provided by installing rack, it is not necessary to the vertical jack that setup cost is high such that it is able to
The cost of retaining mechanism is greatly reduced.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only one embodiment of the present of invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is that the master of the retaining mechanism that the embodiment of the present invention provides regards perspective view；
Fig. 2 is the slide rail schematic partial cross-sectional view with slide block of embodiment of the present invention offer；
Fig. 3 is the side cross-section schematic diagram of the locking device that the embodiment of the present invention provides.
Detailed description of the invention
For making 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.
Fig. 1 is that the master of the retaining mechanism that the embodiment of the present invention provides regards perspective view, sees Fig. 1, and retaining mechanism includes: fixing
Installing rack 1 on jack-up unit and two locking devices, two locking devices are arranged symmetrically in the spud leg of jack-up unit
The both sides of tooth bar a,
Each locking device includes: locking 2, two locking teeth blocks 3 of skewback, the level jack being fixed on installing rack 1
4, connecting plate 6, retractor device 5,
The two ends up and down of locking skewback 2 are slidably fitted on installing rack 1, a side 2b of locking skewback 2
On be vertically provided with a V-groove, V-shaped groove includes that two symmetrical supporting surfaces, two locking teeth blocks 3 are separately mounted to two
On individual supporting surface, the telescopic end of level jack 4 is connected to lock on the side 2a contrary with V-groove of skewback 2,
Each locking teeth block 3 includes field of conjugate action 3a and the inclined-plane 3b coordinated with supporting surface, and inclined-plane 3b and field of conjugate action 3a is
Two sides that locking teeth block 3 is contrary, field of conjugate action 3a is provided with the tooth stating spud leg tooth bar a engagement, and Fig. 2 is that the embodiment of the present invention carries
The slide rail of confession and the schematic partial cross-sectional view of slide block, in conjunction with Fig. 2, supporting surface is provided with the slide rail arranged along supporting surface bearing of trend
2c, inclined-plane 3b are provided with the slide block 3c matched with slide rail 2c,
The two ends up and down of connecting plate 6 are also slidably mounted on installing rack 1, and connecting plate 6 is positioned at locking skewback 2 side, even
Fishplate bar 6 is provided with two kidney slot 6a and two kidney slot 6a along same straight-line extension, specifically, in the present embodiment, and two waists
Shape groove 6a is vertically arranged, and is respectively equipped with bolt 7 in two kidney slot 6a, and two bolts 7 are connected to two lockings
On tooth block 3,
The telescopic end of retractor device 5 is arranged on connecting plate 6, and the fixing end of retractor device 5 is arranged on locking skewback 2,
And the telescopic direction of retractor device 5 is identical with the telescopic direction of level jack 4.
Control the position between connecting plate 6 and locking skewback 2 by horizontally disposed retractor device 5, thus regulate slip
The distance being arranged between two locking teeth blocks 3 on locking skewback 2 and connecting plate 6, it is achieved locking teeth block 3 and spud leg tooth bar a
Between to tooth, by level jack 4, locking skewback 2 and locking teeth block 3 are pressed on spud leg tooth bar a, now, jack up
Vertical load on the spud leg of platform can be delivered to lock on skewback 2 by locking teeth block 3, and will vertically be carried by locking skewback 2
Lotus is delivered on installing rack 1, so, need in the prior art vertical load that the high vertical jack of cost provides directly by
Installing rack 1 provides, it is not necessary to the vertical jack that setup cost is high such that it is able to the one-tenth of retaining mechanism is greatly reduced
This.
Fig. 3 is the side cross-section schematic diagram of the locking device that the embodiment of the present invention provides, and sees Fig. 3, locks skewback about 2
Being respectively equipped with guide rail 8 between two ends and installing rack 1, the two ends up and down of locking skewback 2 are slidably mounted on the guide rail 8 of correspondence respectively
On.The direction of motion of locking skewback 2 can be limited by guide rail 8, and when locking teeth block 3 engages compression with spud leg tooth bar a, stake
The load of lower limb is delivered on guide rail 8 by locking teeth block 3 and locking skewback 2, then is transferred on installing rack 1 by guide rail 8.
In the present embodiment, being additionally provided with wearing plate 9 in guide rail 8, wearing plate 9 can be 18Cr2Ni4W alloy structure steel
The wearing plate become, the strength of materials is high, and anti-wear performance is good, and wearing plate 9 is arranged on the bottom of guide rail 8 by screw, locks skewback 2
Two ends up and down be slidably matched with guide rail 8 by wearing plate 9.It is slidably matched is possible to prevent lock by wearing plate 9 and locking skewback 2
Tightly between skewback 2 and guide rail 8, friction wore away limit in causing guide rail 8 and caused the accident.
As it is shown on figure 3, in the present embodiment, installing rack 1 is parallel to guide rail 8 and is provided with secondary guide rail 10, connecting plate 6 upper and lower
Two ends are slidably mounted in secondary guide rail 10 respectively.The direction of motion of connecting plate 6 is limited by secondary guide rail 10.
In the present embodiment, installing rack 1 is provided with gripper shoe 11, and gripper shoe 11 is fixing even with installing rack 1 and guide rail 8 respectively
Connect.Owing to the load of vertical direction mainly has the guide assembly on installing rack to undertake, therefore strengthen guide rail by gripper shoe
Connection between assembly and installing rack.
In the present embodiment, slide block 3c is T-shaped slide block, and slide rail 2c is I shape slide rail, and slide block 3c and slide rail 2c matches,
Locking teeth block 3 can be limited on locking skewback 2 and slide along slide rail 2c direction.Certainly, in other embodiments of the invention,
Slide rail 2c and slide block 3c can also be the structure of the cooperation of other shapes, the mode coordinated with boss such as common groove.
In the present embodiment, each locking device can include two connecting plates 6 respectively, and two connecting plates are respectively provided with
Both sides in locking skewback 2.Each connecting plate 6 is connected with a retractor device 5 respectively, and two connecting plates 6 are arranged on locking
The both sides of skewback 2 and being connected with two locking teeth blocks 3 respectively, can from limiting the direction of motion of locking teeth block 3, and in both sides with
Time the fixing connection that can make locking teeth block 3 more stable, certainly, connecting plate 6 He can also be only set in the present embodiment
The retractor device 5 matched with connecting plate 6.
Specifically, retractor device 5 can be oil cylinder.Owing to the Main Function of retractor device 5 is two locking teeth blocks 3 of regulation
Between distance, it is not necessary to bearing load, can realize so having only to arrange low power oil cylinder, low cost of manufacture.Work as lock
During tight mechanism's locking, owing to can produce the biggest moment of flexure when spud leg is acted on by stormy waves, and the moment of flexure produced is by upper and lower two
Locking teeth block 3 stand under load, by increasing the distance between two locking teeth blocks 3, also corresponds to add the arm of force of stress, thus
Reduce the additional horizontal force produced because of moment of flexure.
Specifically, level jack 4 can be screw jack, in the present embodiment, sets in each locking device
Put two level jack 4, so can make locking skewback 2 stress evenly when compressing locking skewback 2.It addition, use
Screw jack Performance comparision when keeping the state compressing locking skewback 2 is stable, makes retaining mechanism more safety and stability.
In an embodiment, level jack 4 is provided with reinforcement with the junction of installing rack 1.Level jack 4 mainly undertakes
Load in horizontal direction, can increase installing rack 1 by arranging reinforcement in the junction of level jack 4 and installing rack 1
In level jack 4 and the intensity of installing rack 1 junction.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a retaining mechanism for jack-up unit, described retaining mechanism includes: the installing rack being fixed on jack-up unit and
Two locking devices, said two locking device is arranged symmetrically in the both sides of the spud leg tooth bar of described jack-up unit, its feature
It is,
Each described locking device includes: locking skewback, two locking teeth blocks, the level that is fixed on described installing rack are very heavy
Top, connecting plate, retractor device,
The two ends up and down of described locking skewback are slidably fitted on described installing rack, a side of described locking skewback
Vertically being provided with a V-groove on face, described V-shaped groove includes that two symmetrical supporting surfaces, said two locking teeth block divide
Not being arranged on two described supporting surfaces, the telescopic end of described level jack is that be connected to described locking skewback with described V-type
On the side that groove is contrary,
Each described locking teeth block includes the field of conjugate action and the inclined-plane coordinated with described supporting surface, and described inclined-plane and the described field of conjugate action
Being two sides that described locking teeth block is contrary, the described field of conjugate action is provided with the tooth engaged with described spud leg tooth bar, described support
Face is provided with the slide rail arranged along described supporting surface bearing of trend, and described inclined-plane is provided with the slide block matched with described slide rail,
The two ends up and down of described connecting plate are also slidably mounted on described installing rack, and described connecting plate is positioned at described locking skewback
Side, described connecting plate is provided with two kidney slots and said two kidney slot along same straight-line extension, in two described kidney slots
Being respectively equipped with bolt, two described bolts are connected on two described locking teeth blocks,
The telescopic end of described retractor device is arranged on described connecting plate, and the fixing end of described retractor device is arranged on described locking
On skewback, and the telescopic direction of described retractor device is identical with the telescopic direction of described level jack.
Retaining mechanism the most according to claim 1, it is characterised in that the described upper and lower two ends of locking skewback and described installing rack
Between be respectively equipped with guide rail, the two ends up and down of described locking skewback be slidably mounted on respectively correspondence described guide rail on.
Retaining mechanism the most according to claim 2, it is characterised in that being provided with wearing plate in described guide rail, described locking is oblique
The two ends up and down of block are coordinated with described slide by described wearing plate.
Retaining mechanism the most according to claim 2, it is characterised in that be parallel to described guide rail on described installing rack and be provided with pair
Guide rail, the two ends up and down of described connecting plate are slidably mounted in described secondary guide rail respectively.
Retaining mechanism the most according to claim 4, it is characterised in that described installing rack is provided with gripper shoe, described support
Plate is fixing with described installing rack and described guide rail respectively to be connected.
6. according to the retaining mechanism described in any one of claim 1-5, it is characterised in that described slide block is T-shaped slide block, described cunning
Rail is I shape slide rail.
7. according to the retaining mechanism described in any one of claim 1-5, it is characterised in that each described locking device includes respectively
Two described connecting plates, and said two connecting plate is respectively arranged at the both sides of described locking skewback.
8. according to the retaining mechanism described in any one of claim 1-5, it is characterised in that described retractor device is oil cylinder.
9. according to the retaining mechanism described in any one of claim 1-5, it is characterised in that described level jack is spirally
Jack.
10. according to the retaining mechanism described in any one of claim 1-5, it is characterised in that described level jack and described peace
The junction shelved is provided with reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610596432.2A CN106192963B (en) | 2016-07-26 | 2016-07-26 | A kind of retaining mechanism of jack-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610596432.2A CN106192963B (en) | 2016-07-26 | 2016-07-26 | A kind of retaining mechanism of jack-up unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106192963A true CN106192963A (en) | 2016-12-07 |
| CN106192963B CN106192963B (en) | 2018-03-30 |
Family
ID=57495338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610596432.2A Active CN106192963B (en) | 2016-07-26 | 2016-07-26 | A kind of retaining mechanism of jack-up unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106192963B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381433A (en) * | 2017-07-26 | 2017-11-24 | 武汉船用机械有限责任公司 | A kind of retaining mechanism of rack-and-pinion lowering or hoisting gear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389140A (en) * | 1980-06-13 | 1983-06-21 | Marine Structure Consultants (Msc) Bv | Locking device for a pile-shaped element |
| JPS6058334B2 (en) * | 1982-10-26 | 1985-12-19 | 石川島播磨重工業株式会社 | Platform locking device for offshore structures |
| CN104192771A (en) * | 2014-07-29 | 2014-12-10 | 武汉船用机械有限责任公司 | Gear and rack locking device |
| CN104278663A (en) * | 2014-09-18 | 2015-01-14 | 武汉船用机械有限责任公司 | Locking device for gear and rack ascending and descending system |
| CN204343276U (en) * | 2014-12-15 | 2015-05-20 | 太原重工股份有限公司 | A kind of self-elevating drilling platform and pile leg locking device thereof |
| CN105064310A (en) * | 2015-07-03 | 2015-11-18 | 武汉船用机械有限责任公司 | Locking mechanism of rack-and-pinion lifting system |
-
2016
- 2016-07-26 CN CN201610596432.2A patent/CN106192963B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389140A (en) * | 1980-06-13 | 1983-06-21 | Marine Structure Consultants (Msc) Bv | Locking device for a pile-shaped element |
| JPS6058334B2 (en) * | 1982-10-26 | 1985-12-19 | 石川島播磨重工業株式会社 | Platform locking device for offshore structures |
| CN104192771A (en) * | 2014-07-29 | 2014-12-10 | 武汉船用机械有限责任公司 | Gear and rack locking device |
| CN104278663A (en) * | 2014-09-18 | 2015-01-14 | 武汉船用机械有限责任公司 | Locking device for gear and rack ascending and descending system |
| CN204343276U (en) * | 2014-12-15 | 2015-05-20 | 太原重工股份有限公司 | A kind of self-elevating drilling platform and pile leg locking device thereof |
| CN105064310A (en) * | 2015-07-03 | 2015-11-18 | 武汉船用机械有限责任公司 | Locking mechanism of rack-and-pinion lifting system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381433A (en) * | 2017-07-26 | 2017-11-24 | 武汉船用机械有限责任公司 | A kind of retaining mechanism of rack-and-pinion lowering or hoisting gear |
| CN107381433B (en) * | 2017-07-26 | 2019-05-17 | 武汉船用机械有限责任公司 | A kind of retaining mechanism of rack-and-pinion lifting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106192963B (en) | 2018-03-30 |
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