CN201704683U - Locking mechanism for lifting of ocean platform - Google Patents
Locking mechanism for lifting of ocean platform Download PDFInfo
- Publication number
- CN201704683U CN201704683U CN2010201996996U CN201020199699U CN201704683U CN 201704683 U CN201704683 U CN 201704683U CN 2010201996996 U CN2010201996996 U CN 2010201996996U CN 201020199699 U CN201020199699 U CN 201020199699U CN 201704683 U CN201704683 U CN 201704683U
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- Prior art keywords
- ocean platform
- locking
- elevating mechanism
- cylinder
- lifting
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Abstract
The utility model discloses a locking mechanism for lifting of an ocean platform, which comprises a drilling platform (1) and pile legs (8). The pile legs (8) are provided with lifting racks (7), the drilling platform (1) is provided with a thrust cylinder (4) and a supporting cylinder (2), the front end of the thrust cylinder (4) is connected with locking racks (5), and the locking racks (5) correspond to the lifting racks (7). The locking mechanism has the advantages of simple structure, small volume, light weight, small occupied space, simple installation and debugging, convenient use and maintenance, safety, reliability and the like.
Description
Technical field
The utility model belongs to petroleum and natural gas drilling equipment field, relates to a kind of retaining mechanism that is used for the ocean platform lifting concretely.
Background technology
At the various offshore boring island and other marine structure that are used for the marine oil and gas exploitation, self-elevating drilling platform is owing to have simple in structure, volume is little, in light weight, good economy performance, reliability height, characteristics such as efficient height, the advantage that has completion waterborne simultaneously and can both continuous operation under various sea situations has been brought into play enormous function in the coastal ocean oil and gas development.Jacking system is the key component of self-elevating ocean platform, also be the heavy difficult point that manufactures and designs simultaneously, platform manufacture and design and use in always paid much attention to, the quality of its performance directly has influence on security performance, functional performance and the economy of offshore boring island.
Usually marine drilling platform has weight thousands of and even tens thousand of tons, locking after adjusting the offshore boring island height is supported important, at present great majority are to adopt to add the dish braking on the spindle nose of the non-output of elevating mechanism drive unit platform is maintained certain altitude, this mode makes elevating drive mechanism work long hours, and reliability is relatively poor.
This elevating mechanism locking device is used on the marine drilling platform, shortened the service time of elevating mechanism transmission device greatly, installing and using in the process of ocean platform, the time compole of Installation and Debugging is short, if the use of this elevating mechanism locking device and elevating mechanism transmission device collocation is words reasonably, the elevating mechanism transmission device only needs work a few hours to get final product during each the installation, all the other times can be supported the thousands of of ocean platform and even tens thousand of tons of weight by this elevating mechanism locking device, so just significantly reduced the service time of transmission device, thereby can reduce requirement of strength greatly to the elevating mechanism transmission device, can do the elevating mechanism transmission device smaller and more exquisitely, reduce installing space, and then can reduce the area of ocean platform.
The utility model content
The purpose of this utility model has provided a kind of rack-and-pinion locking supporting arrangement and has supported the thousands of of ocean platform and even tens thousand of tons of weight, have simple for structure, volume is little, and is in light weight, it is little to take up room, advantages such as Installation and Debugging are simple, and working service is convenient and safe and reliable.
The technical solution of the utility model is as follows:
A kind of retaining mechanism that is used for the ocean platform lifting, this mechanism comprises offshore boring island, spud leg, has lifter rack on the described spud leg, on described offshore boring island, be fixed with push action cylinder and support cylinder, described push action cylinder front end is connected with locking rack, and this locking rack is corresponding with described lifter rack.
Utilize said structure, can reduce the service time of elevating mechanism transmission device, reduce the load of elevating mechanism transmission device.Ocean platform is when normal drillng operation, because the complicated factors such as structure of the abominable and rock stratum, seabed of sea situation, also have unusual impact, vibration, cause being multiplied of extra dynamic load of elevating mechanism transmission device, usually utilize ocean platform to carry out Offshore Operation, whenever bunging down needs several months and even one, two years could completion, utilize this rack-and-pinion locking supporting arrangement to support ocean platform, the elevating mechanism transmission device only needs work a few hours to get final product in each mounting or dismounting, that is to say and utilize this locking supporting arrangement to support ocean platform, the service time of ocean platform elevating mechanism transmission device by several months and even one, shortened to a few hours in 2 years, simultaneously the extra dynamic load that produces during drillng operation can not append on the elevating mechanism transmission device yet, because when the ocean platform drillng operation, the elevating mechanism transmission device has not needed work, and this additional dynamic load is to be born by rack-and-pinion locking supporting arrangement.General transmission mechanism has only one, two pair of tooth to participate in the engagement carrying usually, support the thousands of of marine drilling platform and even tens thousand of tons of weight if utilize many tooth is meshed simultaneously of spud leg tooth bar and locking rack, alleviated single load so greatly to tooth, the tooth of spud leg tooth bar and locking rack just can be got less modulus like this, makes that manufacturing is convenient.Compared with general transmission mechanism, the engaging tooth logarithm of this tooth bar locking device can be provided with arbitrarily as required.
Also be fixed with pressurizing cylinder on the described offshore boring island.
Described support cylinder front end is connected with the grip block of wedge shape.
Beneficial effect: the utility model is simple for structure, volume is little, in light weight, it is little to take up room, overall performance is good, Installation and Debugging are simple, working service is convenient and safe and reliable, this elevating mechanism locking device is used on the marine drilling platform, shortened the service time of elevating mechanism transmission device greatly, installing and using in the process of ocean platform, the time compole of Installation and Debugging is short, if the use of this elevating mechanism locking device and elevating mechanism transmission device collocation is words reasonably, the elevating mechanism transmission device only needs work a few hours to get final product during each the installation, and all the other times can be supported the thousands of of ocean platform and even tens thousand of tons of weight by this elevating mechanism locking device, have so just significantly reduced the service time of transmission device, thereby can reduce requirement of strength greatly to the elevating mechanism transmission device, can do the elevating mechanism transmission device smaller and more exquisitely, reduce installing space, and then can reduce the area of ocean platform.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 structural representation of the present utility model.
The specific embodiment
As shown in Figure 1: a kind of retaining mechanism that is used for the ocean platform lifting, this mechanism comprises offshore boring island 1, spud leg 8, has lifter rack 7 on the described spud leg 8, on described offshore boring island 1, be fixed with push action cylinder 4 and support cylinder 2, described push action cylinder 4 front ends are connected with locking rack 5, and this locking rack 5 is corresponding with described lifter rack 7.
Also be fixed with pressurizing cylinder 6 on the described offshore boring island 1.
Described support cylinder 2 front ends are connected with the grip block 3 of wedge shape.
When the ocean platform lift work, make the rod chamber pressurising power hydraulic oil of bottom supporting oil cylinder 2, push action cylinder 4, pressurizing cylinder 6 simultaneously, make two locking racks 5 throw off fully with lifter rack 7 simultaneously, ocean platform elevating mechanism transmission device just can carry out the lift work of platform like this, and this moment, the platform load was born by the elevating mechanism transmission device; When ocean platform is finished lift work and is carried out normal drillng operation, make the rodless cavity pressurising power hydraulic oil of bottom supporting oil cylinder 2, push action cylinder 4, pressurizing cylinder 6 simultaneously, push action cylinder 4 rodless cavity pressurising power hydraulic oil effectively mesh two locking racks 5 simultaneously with lifter rack 7, and bottom supporting oil cylinder 2, push action cylinder 4 rodless cavity pressurising power hydraulic oil can also prevent effectively that locking rack 5 and lifter rack 7 break away from engagement, and this moment, the platform load was born by the elevating mechanism transmission device.
Claims (3)
1. retaining mechanism that is used for the ocean platform lifting, this mechanism comprises offshore boring island (1), spud leg (8), has lifter rack (7) on the described spud leg (8), it is characterized in that: on described offshore boring island (1), be fixed with push action cylinder (4) and support cylinder (2), described push action cylinder (4) front end is connected with locking rack (5), and this locking rack (5) is corresponding with described lifter rack (7).
2. a kind of retaining mechanism that is used for the ocean platform lifting according to claim 1 is characterized in that: also be fixed with pressurizing cylinder (6) on the described offshore boring island (1).
3. a kind of retaining mechanism that is used for the ocean platform lifting according to claim 1 and 2 is characterized in that: described support cylinder (2) front end is connected with the grip block (3) of wedge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201996996U CN201704683U (en) | 2010-05-21 | 2010-05-21 | Locking mechanism for lifting of ocean platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201996996U CN201704683U (en) | 2010-05-21 | 2010-05-21 | Locking mechanism for lifting of ocean platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704683U true CN201704683U (en) | 2011-01-12 |
Family
ID=43441837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201996996U Expired - Fee Related CN201704683U (en) | 2010-05-21 | 2010-05-21 | Locking mechanism for lifting of ocean platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201704683U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518103A (en) * | 2011-12-15 | 2012-06-27 | 吴平平 | Unlocking method and structure of pile locking device unlocked by using high-pressure oil cylinder |
| CN102758426A (en) * | 2011-04-28 | 2012-10-31 | 四川宏华石油设备有限公司 | Locking device of lifting platform |
| CN102912778A (en) * | 2011-08-05 | 2013-02-06 | 四川宏华石油设备有限公司 | Locking device and hydraulic control system thereof |
| CN103352454A (en) * | 2013-07-10 | 2013-10-16 | 上海大学 | Pile leg locking mechanism of self-elevating type ocean platform lifting system |
| CN103388325A (en) * | 2013-08-05 | 2013-11-13 | 四川宏华石油设备有限公司 | Connecting and unloading device and application method thereof |
| CN103993591A (en) * | 2014-05-20 | 2014-08-20 | 大连船舶重工集团海洋工程有限公司 | Pile leg and pile shoe sealing method used when self-elevating drilling platform enters water |
| CN105083743A (en) * | 2015-07-16 | 2015-11-25 | 上海外高桥造船有限公司 | Pile leg fixing device |
| CN107780399A (en) * | 2017-09-12 | 2018-03-09 | 武汉船用机械有限责任公司 | A kind of retaining mechanism of self-elevating ocean platform |
-
2010
- 2010-05-21 CN CN2010201996996U patent/CN201704683U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758426A (en) * | 2011-04-28 | 2012-10-31 | 四川宏华石油设备有限公司 | Locking device of lifting platform |
| CN102758426B (en) * | 2011-04-28 | 2015-08-26 | 四川宏华石油设备有限公司 | The locking device of elevating platform |
| CN102912778A (en) * | 2011-08-05 | 2013-02-06 | 四川宏华石油设备有限公司 | Locking device and hydraulic control system thereof |
| CN102912778B (en) * | 2011-08-05 | 2014-11-12 | 四川宏华石油设备有限公司 | Locking device and hydraulic control system thereof |
| CN102518103A (en) * | 2011-12-15 | 2012-06-27 | 吴平平 | Unlocking method and structure of pile locking device unlocked by using high-pressure oil cylinder |
| CN103352454A (en) * | 2013-07-10 | 2013-10-16 | 上海大学 | Pile leg locking mechanism of self-elevating type ocean platform lifting system |
| CN103388325A (en) * | 2013-08-05 | 2013-11-13 | 四川宏华石油设备有限公司 | Connecting and unloading device and application method thereof |
| CN103388325B (en) * | 2013-08-05 | 2015-06-10 | 四川宏华石油设备有限公司 | Connecting and unloading device and application method thereof |
| CN103993591A (en) * | 2014-05-20 | 2014-08-20 | 大连船舶重工集团海洋工程有限公司 | Pile leg and pile shoe sealing method used when self-elevating drilling platform enters water |
| CN105083743A (en) * | 2015-07-16 | 2015-11-25 | 上海外高桥造船有限公司 | Pile leg fixing device |
| CN107780399A (en) * | 2017-09-12 | 2018-03-09 | 武汉船用机械有限责任公司 | A kind of retaining mechanism of self-elevating ocean platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20150521 |
|
| EXPY | Termination of patent right or utility model |