CN112195901A - Self-elevating offshore platform pile leg lifting and locking device - Google Patents
Self-elevating offshore platform pile leg lifting and locking device Download PDFInfo
- Publication number
- CN112195901A CN112195901A CN202011236272.3A CN202011236272A CN112195901A CN 112195901 A CN112195901 A CN 112195901A CN 202011236272 A CN202011236272 A CN 202011236272A CN 112195901 A CN112195901 A CN 112195901A
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- Prior art keywords
- rack
- locking
- adjusting block
- motor
- piece portion
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- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
-
- 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
-
- 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
-
- 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
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a pile leg lifting locking device of a self-elevating ocean platform, which comprises a lifting device, a fixing frame, a locking block mechanism and a motor transmission mechanism, wherein the lifting device is positioned at the bottom of the fixing frame; the transmission device adopts the motor for transmission, and has better control, relatively simple structure and more flexible operation; when the first rack adjusting block and the second rack adjusting block on the fixing frame move to the extreme positions, the meshing effect of the locking rack and the rack is just better.
Description
Technical Field
The invention relates to the technical field of ocean platform lifting systems, in particular to a self-elevating ocean platform pile leg lifting locking device.
Background
Along with the progress of science and technology, the demand for ocean resources is increasing day by day, the development condition of offshore equipment is also receiving more attention, wherein the jack-up ocean platform is the most extensive equipment for the development and application of the ocean resources in the world at present, because most ocean platforms only carry out synchronous lifting for several times in the using process and usually keep still for decades, the jack-up ocean platform needs to lock the pile legs of the ocean platform and the ocean platform main body when lifting to a certain height, the jack-up ocean platform is prevented from being unbalanced due to self gravity or external force, so that the platform is inclined, and the equipment and personnel are damaged, the existing jack-up ocean platform mainly adopts a hydraulic device and a gear to control the fixation of the pile legs, but the hydraulic device has the problems of complex structure, high requirements on hydraulic parts and hydraulic oil and the like; meanwhile, as the self mass of the platform is large, if the pile leg is locked by adopting gear meshing, the stable locking of the pile leg cannot be ensured, and gear teeth of the gear are easy to damage.
Disclosure of Invention
The invention aims to provide a self-elevating offshore platform pile leg lifting locking device, which solves the problems in the prior art, makes the fine adjustment of a rack more convenient, and makes a locking rack and a pile leg engaged and locked better.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a self-elevating offshore platform spud leg lifting locking device which comprises a lifting device, a fixed frame, a locking block mechanism and a motor transmission mechanism, wherein the lifting device is positioned at the bottom of the fixed frame; the lifting device comprises a rack, and the rack penetrates through the lifting device and the fixed frame; the locking piece mechanism comprises a first locking piece portion and a second locking piece portion, the first locking piece portion and the second locking piece portion are identical in structure, the first locking piece portion and the second locking piece portion are symmetrically arranged on two sides of the rack, and the first locking piece portion and the second locking piece portion are meshed with the rack.
Preferably, first lock piece portion includes the lead screw, first ring flange, first rack adjusting block, rack fixed block, screw bushing, second rack adjusting block, second ring flange are worn to be equipped with in proper order from top to bottom by the lead screw, it is equipped with the locking rack to inlay on the rack fixed block, the locking rack with the rack corresponds the setting, first rack adjusting block and second rack adjusting block with mount sliding connection.
Preferably, the motor transmission mechanism comprises a motor, the motor is fixedly connected with the fixing frame, the motor is located outside the side wall of the fixing frame, the motor output shaft penetrates through the side wall of the fixing frame, the motor output shaft is fixedly connected with a transmission rod, the transmission rod is coupled with two connecting rods, and the two connecting rods are respectively coupled with the first locking block part and the second locking block part.
Preferably, the rack fixing block is connected with the locking rack through a pin.
Preferably, the side wall of the fixing frame is provided with a plurality of sliding grooves, sliding blocks are respectively fixed at two ends of the first rack adjusting block and the second rack adjusting block, and the sliding grooves are in sliding connection with the sliding blocks.
Preferably, the first flange plate is fixedly connected with the first rack adjusting block, and the second flange plate is fixedly connected with the second rack adjusting block.
Preferably, a guide rod is fixedly arranged between the rack fixing block and the second rack adjusting block.
Preferably, the screw sleeve is fixedly connected with the second rack adjusting block.
The invention discloses the following technical effects:
the rack fixing block is provided with the lead screw, the locking rack can be better meshed with the rack by finely adjusting the lead screw, and meanwhile, the locking rack is ensured to be in a proper position when being meshed with the rack;
the transmission device adopts the motor for transmission, and has better control, relatively simple structure and more flexible operation;
when the first rack adjusting block and the second rack adjusting block on the fixing frame move to the extreme positions, the meshing effect of the locking rack and the rack is just better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic structural view of a jack-up offshore platform leg lift locking device of the present invention;
FIG. 2 is a schematic structural diagram of a first locking block portion of the present invention;
FIG. 3 is a schematic structural diagram of the motor driving mechanism of the present invention;
FIG. 4 is a schematic structural view of the fixing frame of the present invention;
in the figure: the lifting device comprises a lifting device 1, a motor transmission mechanism 2, a fixed frame 3, a rack 4, a first locking block part 5, a second locking block part 6, a screw 7, a first flange 8, a first rack adjusting block 9, a rack fixing block 10, a screw sleeve 11, a second rack adjusting block 12, a second flange 13, a locking rack 14, a motor 15, a transmission rod 16, a connecting rod 17, a pin 18, a sliding groove 19 and a sliding block 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
Referring to fig. 1-3, the invention provides a self-elevating offshore platform spud leg lifting locking device, which comprises a lifting device 1, a fixed frame 3, a locking mechanism and a motor transmission mechanism 2, wherein the lifting device 1 is positioned at the bottom of the fixed frame 3, the locking mechanism is positioned inside the fixed frame 3, the lifting device 1 is fixedly connected with the fixed frame 3, the locking mechanism is slidably connected with the fixed frame 3, the motor transmission mechanism 2 is positioned on the side wall of the fixed frame 3, and the motor transmission mechanism 2 is in driving connection with the locking mechanism; the lifting device 1 comprises a rack 4, and the rack 4 penetrates through the lifting device 1 and the fixed frame 3; the locking piece mechanism comprises a first locking piece portion 5 and a second locking piece portion 6, the first locking piece portion 5 and the second locking piece portion 6 are identical in structure, the first locking piece portion 5 and the second locking piece portion 6 are symmetrically arranged on two sides of the rack 4, and the first locking piece portion 5 and the second locking piece portion 6 are meshed with the rack 4.
Further optimize the scheme, first dog portion 5 includes lead screw 7, lead screw 7 top-down wears to be equipped with first ring flange 8, first rack adjusting block 9, rack fixed block 10, lead screw cover 11, second rack adjusting block 12, second ring flange 13 in proper order, it is equipped with locking rack 14 to inlay on the rack fixed block 10, locking rack 14 with rack 4 corresponds the setting, first rack adjusting block 9 and second rack adjusting block 12 with 3 sliding connection of mount.
In a further optimized scheme, the motor transmission mechanism 2 comprises a motor 15, the motor 15 is fixedly connected with the fixed frame 3, the motor 15 is positioned at the outer side of the side wall of the fixed frame 3, the output shaft of the motor 15 penetrates through the side wall of the fixed frame 3, the output shaft of the motor 15 is fixedly connected with a transmission rod 16, the transmission rod 16 is of a diamond structure, two ends of the transmission rod 16 are respectively coupled with a connecting rod 17, the two connecting rods 17 are respectively coupled with the first locking block part 5 and the second locking block part 6, a cylindrical bulge is fixed at one end of each connecting rod 17 far away from the transmission rod 16, the side walls of the rack fixing blocks 10 of the first locking block part 5 and the second locking block part 6 close to the motor 15 are provided with grooves, the cylindrical protrusion is matched with the groove, and the transmission device adopts the motor 15 for transmission, so that the device has better control, relatively simple structure and more flexible operation.
In a further optimized scheme, the rack fixing block 10 is connected with the locking rack 14 through a pin 18, so that the locking rack 14 is more firmly fixed on the rack fixing block 10.
According to the further optimization scheme, the side wall of the fixing frame 3 is provided with a plurality of sliding grooves 19, sliding blocks 20 are fixed at two ends of the first rack adjusting block 9 and the second rack adjusting block 12 respectively, the sliding grooves 19 are connected with the sliding blocks 20 in a sliding mode, and when the first rack adjusting block 9 and the second rack adjusting block 12 on the fixing frame 3 move to the limit positions, the meshing effect of the locking rack 14 and the rack 4 is just better.
In order to further optimize the scheme, in order to fix the first flange plate 8 and the second flange plate 13, the first flange plate 8 is fixedly connected with the first rack adjusting block 9, the second flange plate 13 is fixedly connected with the second rack adjusting block 12, and the first flange plate 8 and the second flange plate 13 are respectively connected with the lead screw 7 through bearings.
In a further optimized scheme, a guide rod 21 is fixedly arranged between the rack fixing block 10 and the second rack adjusting block 12, so that the locking rack 14 can always correspond to the rack 4 when the screw rod rotates.
In a further optimized scheme, the screw sleeve 11 is fixedly connected with the second rack adjusting block 12, and the screw sleeve 11 is in threaded connection with the screw 7, so that when the screw sleeve 11 is adjusted along with the screw 7, the second rack adjusting block 12 cannot rotate along with the screw.
The device is characterized in that two sides of a rack 4 of a lifting device 1 are respectively matched with a locking rack 14, the locking rack 14 is driven to be meshed with the rack 4 through a motor 15, so that the purpose of limiting and locking is achieved, a lead screw 7 is arranged on a rack fixing block 10, the locking rack 14 can be better meshed with the rack 4 through fine adjustment of the lead screw 7, meanwhile, the locking rack 14 is ensured to be in a proper position when meshed with the rack 4, and a transmission device adopts the motor 15 for transmission, so that the device has better control, a relatively simple structure and more flexible operation; when the first rack adjusting block 9 and the second rack adjusting block 12 on the fixing frame 3 move to the extreme positions, the meshing effect of the locking rack 14 and the rack 4 is just better.
Example 2
Another set of motor transmission mechanism can be arranged on the other side of the fixed frame 3 to form a double-motor transmission mechanism, so that the same effect can be achieved.
Example 3
The motor 15 can be omitted, a hydraulic device can be adopted to achieve the same effect, and the hydraulic devices are respectively fixed on the left side and the right side of the rack fixing block 10 to achieve the same function; or a single hydraulic device is added right behind the rack fixing block 10 to achieve the same function.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. The utility model provides a from lift-type platform spud leg lift locking device which characterized in that: the lifting device (1) is positioned at the bottom of the fixing frame (3), the locking mechanism is positioned inside the fixing frame (3), the lifting device (1) is fixedly connected with the fixing frame (3), the locking mechanism is in sliding connection with the fixing frame (3), the motor transmission mechanism (2) is positioned on the side wall of the fixing frame (3), and the motor transmission mechanism (2) is in driving connection with the locking mechanism; the lifting device (1) comprises a rack (4), and the rack (4) penetrates through the lifting device (1) and the fixed frame (3); the locking piece mechanism comprises a first locking piece portion (5) and a second locking piece portion (6), the first locking piece portion (5) and the second locking piece portion (6) are identical in structure, the first locking piece portion (5) and the second locking piece portion (6) are symmetrically arranged on two sides of the rack (4), and the first locking piece portion (5) and the second locking piece portion (6) are meshed with the rack (4).
2. The locking device for lifting pile legs of self-elevating offshore platform according to claim 1, wherein: first dog portion (5) includes lead screw (7), lead screw (7) top-down wears to be equipped with first ring flange (8), first rack adjusting block (9), rack fixed block (10), lead screw cover (11), second rack adjusting block (12), second ring flange (13) in proper order, it is equipped with locking rack (14) to inlay on rack fixed block (10), locking rack (14) with rack (4) correspond the setting, first rack adjusting block (9) and second rack adjusting block (12) with mount (3) sliding connection.
3. The locking device for lifting pile legs of self-elevating offshore platform according to claim 1, wherein: motor drive (2) include motor (15), motor (15) with mount (3) fixed connection, motor (15) are located the mount (3) lateral wall outside, motor (15) output shaft runs through mount (3) lateral wall, motor (15) output shaft fixedly connected with transfer line (16), transfer line (16) hub connection has two connecting rod (17), two connecting rod (17) are with first latch portion (5), second latch portion (6) hub connection respectively.
4. The jack-up offshore platform leg lift locking device of claim 2, wherein: the rack fixing block (10) is connected with the locking rack (14) through a pin (18).
5. The jack-up offshore platform leg lift locking device of claim 2, wherein: the side wall of the fixing frame (3) is provided with a plurality of sliding grooves (19), sliding blocks (20) are fixed at two ends of the first rack adjusting block (9) and the second rack adjusting block (12) respectively, and the sliding grooves (19) are connected with the sliding blocks (20) in a sliding mode.
6. The jack-up offshore platform leg lift locking device of claim 2, wherein: the first flange plate (8) is fixedly connected with the first rack adjusting block (9), and the second flange plate (13) is fixedly connected with the second rack adjusting block (12).
7. The jack-up offshore platform leg lift locking device of claim 2, wherein: and a guide rod (21) is fixedly arranged between the rack fixing block (10) and the second rack adjusting block (12).
8. The jack-up offshore platform leg lift locking device of claim 2, wherein: the screw rod sleeve (11) is fixedly connected with the second rack adjusting block (12).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011236272.3A CN112195901A (en) | 2020-11-09 | 2020-11-09 | Self-elevating offshore platform pile leg lifting and locking device |
| LU500772A LU500772B1 (en) | 2020-11-09 | 2021-01-05 | Lifting and Locking Device for Pile Leg of Jack-up Offshore Platform |
| PCT/CN2021/070277 WO2022095277A1 (en) | 2020-11-09 | 2021-01-05 | Leg lifting/lowering locking apparatus for jack-up ocean platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011236272.3A CN112195901A (en) | 2020-11-09 | 2020-11-09 | Self-elevating offshore platform pile leg lifting and locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112195901A true CN112195901A (en) | 2021-01-08 |
Family
ID=74033461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011236272.3A Pending CN112195901A (en) | 2020-11-09 | 2020-11-09 | Self-elevating offshore platform pile leg lifting and locking device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN112195901A (en) |
| LU (1) | LU500772B1 (en) |
| WO (1) | WO2022095277A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203947457U (en) * | 2014-07-11 | 2014-11-19 | 盘锦凯瑞能源有限公司 | A kind of self-elevating drilling platform fastening system |
| WO2016206510A1 (en) * | 2015-06-25 | 2016-12-29 | 江苏科技大学 | Automatic-lifting platform |
| CN108396721A (en) * | 2018-01-22 | 2018-08-14 | 中国石油大学(华东) | A kind of Liftable type ice resistant device suitable for truss leg self-elevating ocean platform |
| CN108643156A (en) * | 2018-06-22 | 2018-10-12 | 广东海洋大学 | A kind of round spud leg rack-and-pinion hoistable platform |
| CN108999166A (en) * | 2018-09-10 | 2018-12-14 | 江苏科技大学 | A kind of self-lifting hoister ship pile leg locking device |
| CN213508383U (en) * | 2020-11-09 | 2021-06-22 | 广东海洋大学 | Self-elevating offshore platform pile leg lifting and locking device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2572202B1 (en) * | 1984-10-18 | 1987-01-09 | Brissonneau & Lotz | METHOD AND DEVICE FOR FACILITATING THE DESOLIDARIZATION OF BODIES BETWEEN HIGH STRESSES |
| US6231269B1 (en) * | 1999-03-05 | 2001-05-15 | Friede & Goldman, Ltd. | Apparatus for releasing a rack chock of a jack-up rig |
| CN103352454B (en) * | 2013-07-10 | 2015-10-07 | 上海大学 | Pile leg locking mechanism in self-elevating ocean platform jacking system |
| CN208072361U (en) * | 2018-01-05 | 2018-11-09 | 于黎明 | A kind of self-elevating drilling platform pile leg locking |
-
2020
- 2020-11-09 CN CN202011236272.3A patent/CN112195901A/en active Pending
-
2021
- 2021-01-05 LU LU500772A patent/LU500772B1/en active IP Right Grant
- 2021-01-05 WO PCT/CN2021/070277 patent/WO2022095277A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203947457U (en) * | 2014-07-11 | 2014-11-19 | 盘锦凯瑞能源有限公司 | A kind of self-elevating drilling platform fastening system |
| WO2016206510A1 (en) * | 2015-06-25 | 2016-12-29 | 江苏科技大学 | Automatic-lifting platform |
| CN108396721A (en) * | 2018-01-22 | 2018-08-14 | 中国石油大学(华东) | A kind of Liftable type ice resistant device suitable for truss leg self-elevating ocean platform |
| CN108643156A (en) * | 2018-06-22 | 2018-10-12 | 广东海洋大学 | A kind of round spud leg rack-and-pinion hoistable platform |
| CN108999166A (en) * | 2018-09-10 | 2018-12-14 | 江苏科技大学 | A kind of self-lifting hoister ship pile leg locking device |
| CN213508383U (en) * | 2020-11-09 | 2021-06-22 | 广东海洋大学 | Self-elevating offshore platform pile leg lifting and locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| LU500772B1 (en) | 2022-04-22 |
| WO2022095277A1 (en) | 2022-05-12 |
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