CN201531018U - Lifting mechanism of self-elevating drilling platform - Google Patents
Lifting mechanism of self-elevating drilling platform Download PDFInfo
- Publication number
- CN201531018U CN201531018U CN 200920210266 CN200920210266U CN201531018U CN 201531018 U CN201531018 U CN 201531018U CN 200920210266 CN200920210266 CN 200920210266 CN 200920210266 U CN200920210266 U CN 200920210266U CN 201531018 U CN201531018 U CN 201531018U
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- gear
- elevating mechanism
- planetary
- double helical
- drive motors
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Abstract
The present utility model discloses a lifting mechanism of a self-elevating drilling platform. The drilling platform has a chord member, a toothed rack is positioned on the chord member, and a fixed frame is fixed on the drilling platform. The lifting mechanism comprises a drive motor, a brake for braking the drive motor, a parallel-axes gear reduction mechanism and a planet gear reduction mechanism, the power output by the drive motor is transferred from the parallel-axes gear reduction mechanism to the planet gear reduction mechanism, the planet gear reduction mechanism is provided with a power output shaft, a climbing gear and bearings are installed on the power output shaft, the climbing gear is engaged with the toothed rack, and the bearings are supported on the fixed frame. The utility model is characterized in that there are two bearings which are positioned at the two sides of the climbing gear respectively. According to the utility model, the lifting load and safety are improved through the bearing of a couple of bearings positioned at the two sides of the climbing gear.
Description
Technical field
The utility model relates to a kind of elevating mechanism that is used for offshore drilling platforms.
Background technology
Self-elevating drilling platform is made up of platform structure, spud leg, elevating mechanism, drilling rig and life building etc. as a kind of deck ascending/decending or spud leg formula platform of claiming again of offshore boring island.Platform when work with elevating mechanism with platform raising to more than the sea, make it to avoid sea beat, rely on the support of spud leg to stand in the seabed and carry out drillng operation.After finishing the work, fall platform, pull up spud leg and it is risen to the towage position, can towage arrive next well location operation to the sea.
The elevating mechanism of self-elevating drilling platform is typically provided with three or more supporting legs, and each supporting leg further is made up of one or more chord members, is generally three.Each chord member is provided with the tooth bar of longitudinal extension, and this tooth bar is by the gear drive of climbing that is connected in hull, and the gear that climbs provides power by hydraulic pressure, device such as electric.These gears that climb can be arranged to the truss supporting leg center of its gear teeth in the face of being made of many chord members, and the gear that maybe these can be climbed is arranged to opposed mutually, meshes each opposed facing gear that climbs by the tooth bar that is installed on each side of supporting leg chord member.Often pile up, hold predetermined load so that enough power to be provided with a plurality of gears are vertical.
This jack-up unit also can be subjected to the overall situation load that storm produces except being subjected to normal rated load, storm can be applied to wind-force on the platform and with wind-force and wave force and be applied on the spud leg of platform.The gravity of these power and platform combines to make and produces a big interaction force between platform and the spud leg, and this power must act on the interface or the junction of spud leg and hull.Therefore need to rely on climb gear and the engagement of spud leg upper rack in some cover elevating mechanisms, platform is stable on the chord member of every pile leg.
Therefore, elevating mechanism not only works in the lifting of spud leg, platform and precompressed process, when platform is in running order, also needs to play the effect of stable platform, thereby must have high safety factor.The output shaft of the planetary gear speed reducing mechanism of existing elevating mechanism mostly is monolateral shaft strength form, and its heavily loaded ability is relatively poor.In addition, the drive motors of existing elevating mechanism is a slip electric motor, and slip electric motor is not because the restriction of self mechanism has the control of moment of torsion and speed, and therefore the stationary problem to many covers elevating mechanism is difficult to effective solution.
Summary of the invention
Technical problem to be solved in the utility model is to provide the self-elevating drilling platform that a kind of lifting load is big, safety factor is high elevating mechanism.
The technical scheme that the utility model adopted is: a kind of self-elevating drilling platform elevating mechanism, and this offshore boring island is provided with chord member, is fixed with tooth bar on this chord member, also is fixed with fixed frame on this offshore boring island; Elevating mechanism comprises drive motors, is used to brake the brake of this drive motors, parallel-axes gears reducing gear and planetary gear reducing mechanism; The power of drive motors output passes to planetary gear reducing mechanism through the parallel-axes gears reducing gear, planetary gear reducing mechanism is provided with a power output shaft, climb gear and bearing are installed on this power output shaft, the wheel and rack that climbs engagement, bearing is supported on the fixed frame; Be characterized in that the quantity of bearing is two, these two bearings are separately positioned on the both sides of the gear that climbs.
Above-mentioned self-elevating drilling platform elevating mechanism, wherein, planetary gear reducing mechanism comprises sun gear, ring gear, planet carrier and a plurality of planetary gear, sun gear, ring gear and a plurality of planetary gear are double helical gear; Wherein, as the double helical gear of sun gear integral type double helical gear, be the split type double helical gear of forming by two helical gears that are arranged side by side as ring gear and planetary double helical gear for no grinding undercut.
Above-mentioned self-elevating drilling platform elevating mechanism, wherein, two helical gears as the split type double helical gear of ring gear are coupled to each other by a plurality of bolts and a plurality of elastic cylindrical pin, in two helical gears as planetary split type double helical gear, one of them helical gear end face is provided with groove, another helical gear end face is provided with the joint tongue suitable with this groove, and this joint tongue is embedded in this groove.
The utility model has the advantages that:
1. the utility model is stressed by the pair of bearings that is arranged on the gear both sides of climbing, thereby has improved lifting load and safety.
2. the sun gear of planetary gear reducing mechanism of the present utility model, ring gear and planetary gear all adopt double helical gear, thereby have improved the supporting capacity of gear-driven stationarity and gear greatly, and overall structure is also compact more.
3. drive motors of the present utility model adopts variable-frequency motor, thereby when the many covers of use elevating mechanism, can realize accurate Synchronization Control.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a user mode schematic diagram of the present utility model;
Fig. 3 is the local enlarged diagram of planetary gear reducing mechanism of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is made and to be further specified.
In conjunction with illustrated in figures 1 and 2, self-elevating drilling platform elevating mechanism of the present utility model comprises brake 1, drive motors 2, parallel-axes gears reducing gear 3 and planetary gear reducing mechanism 4.Wherein, brake 1 is installed on the drive motors 2, is used to brake drive motors 2.The power of drive motors 2 outputs is delivered to planetary gear reducing mechanism 4 behind parallel-axes gears reducing gear 3.Planetary gear reducing mechanism 4 is provided with a power output shaft 41, the gear 6 that climbs, clutch shaft bearing 5 and second bearing 7 are installed on this power output shaft 41, the gear 6 that climbs meshes with the tooth bar 11 that is fixed on the chord member 10, the clutch shaft bearing 5 and second bearing 7 are not arranged on the both sides of the described gear 6 that climbs, and be supported on the fixed frame 8, fixed frame 8 is fixed on the offshore boring island.
Fig. 3 is the local enlarged diagram of planetary gear reducing mechanism of the present utility model.As shown in the figure, planetary gear reducing mechanism 4 comprises sun gear 42, ring gear 43, planet carrier 44 and a plurality of planetary gear 45, and sun gear 42, ring gear 43 and a plurality of planetary gear 45 are double helical gear.Wherein, as the double helical gear of sun gear 42 integral type double helical gear, be the split type double helical gear of forming by two helical gears that are arranged side by side as the double helical gear of ring gear 43 and planetary gear 45 for no grinding undercut.Two helical gears as the split type double helical gear of ring gear 43 are coupled to each other by a plurality of bolts 46 and a plurality of elastic cylindrical pin (not shown).In two helical gears as the split type double helical gear of planetary gear 45, one of them helical gear end face is provided with groove 451, and another helical gear end face is provided with the joint tongue 452 suitable with this groove 451, and this joint tongue 452 is embedded in groove 451.
The utility model is by electrical control system control drive motors 2, drive motors 2 drives parallel-axes gears reducing gear 3 and planetary gear reducing mechanism 4, gear motion by climb gear 6 and tooth bar 11 at last, drive drilling platform lifting, the weight of offshore boring island then passes to the clutch shaft bearing 5 and second bearing 7 in the elevating mechanism by climb gear 6 and tooth bar 11.When elevating mechanism quit work, brake 1 work with drive motors 2 skiddings, realized the braking of offshore boring island or spud leg.Only show among Fig. 2 and adopt a pair of elevating mechanism to be arranged in the both sides of tooth bar 11, also can be provided with manyly as required, overlap elevating mechanism more and drive tooth bar, can satisfy the heavily loaded requirement of offshore boring island elevating mechanism.
Claims (5)
1. self-elevating drilling platform elevating mechanism, described offshore boring island is provided with chord member, is fixed with tooth bar on described chord member, also is fixed with fixed frame on this offshore boring island; Described elevating mechanism comprises drive motors, is used to brake the brake of this drive motors, parallel-axes gears reducing gear and planetary gear reducing mechanism; The power of described drive motors output passes to described planetary gear reducing mechanism through described parallel-axes gears reducing gear, planetary gear reducing mechanism is provided with a power output shaft, climb gear and bearing are installed on this power output shaft, described climb gear and the engagement of described tooth bar, described bearing is supported on the described fixed frame; It is characterized in that the quantity of described bearing is two, these two bearings are separately positioned on the both sides of the described gear that climbs.
2. elevating mechanism as claimed in claim 1 is characterized in that, described planetary gear reducing mechanism comprises sun gear, ring gear, planet carrier and a plurality of planetary gear, and described sun gear, ring gear and a plurality of planetary gear are double helical gear; Wherein, as the double helical gear of sun gear integral type double helical gear, be the split type double helical gear of forming by two helical gears that are arranged side by side as ring gear and planetary double helical gear for no grinding undercut.
3. elevating mechanism as claimed in claim 2 is characterized in that, is coupled to each other by a plurality of bolts and a plurality of elastic cylindrical pin as two helical gears of the split type double helical gear of ring gear.
4. elevating mechanism as claimed in claim 2, it is characterized in that, in two helical gears as planetary split type double helical gear, one of them helical gear end face is provided with groove, another helical gear end face is provided with the joint tongue suitable with this groove, and this joint tongue is embedded in this groove.
5. elevating mechanism as claimed in claim 1 is characterized in that, described drive motors is a variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920210266 CN201531018U (en) | 2009-09-28 | 2009-09-28 | Lifting mechanism of self-elevating drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920210266 CN201531018U (en) | 2009-09-28 | 2009-09-28 | Lifting mechanism of self-elevating drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531018U true CN201531018U (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920210266 Expired - Lifetime CN201531018U (en) | 2009-09-28 | 2009-09-28 | Lifting mechanism of self-elevating drilling platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531018U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628264A (en) * | 2012-04-19 | 2012-08-08 | 吴平平 | Elevating device for self-elevating drilling platform |
| CN103015388A (en) * | 2013-01-21 | 2013-04-03 | 上海振华重工(集团)股份有限公司 | Self-elevating platform lifting device allowing for dynamically detection of load |
| CN103061678A (en) * | 2011-10-24 | 2013-04-24 | 成都宏天电传工程有限公司 | Lifting and well drilling system |
| CN103089231A (en) * | 2011-10-27 | 2013-05-08 | 中集船舶海洋工程设计研究院有限公司 | Driving system of self-elevating type ocean platform |
| CN103183109A (en) * | 2011-12-30 | 2013-07-03 | 上海振华重工(集团)股份有限公司 | Ocean wind power mounting platform |
| CN103343800A (en) * | 2013-07-16 | 2013-10-09 | 四川宏华石油设备有限公司 | Speed reducer structure of lifting type platform lifting system |
| CN106458541A (en) * | 2014-05-08 | 2017-02-22 | 西门子公司 | Gear pair for a lifting vessel |
| CN106759209A (en) * | 2016-12-08 | 2017-05-31 | 太原重工股份有限公司 | Self-elevating drilling platform and its lowering or hoisting gear |
| CN109736280A (en) * | 2019-01-04 | 2019-05-10 | 武汉船用机械有限责任公司 | A kind of brake apparatus for self-elevating ocean platform jacking system |
| CN109736281A (en) * | 2019-01-04 | 2019-05-10 | 武汉船用机械有限责任公司 | Gear rack lifting system |
-
2009
- 2009-09-28 CN CN 200920210266 patent/CN201531018U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061678A (en) * | 2011-10-24 | 2013-04-24 | 成都宏天电传工程有限公司 | Lifting and well drilling system |
| CN103089231B (en) * | 2011-10-27 | 2015-07-01 | 中集船舶海洋工程设计研究院有限公司 | Driving system of self-elevating type ocean platform |
| CN103089231A (en) * | 2011-10-27 | 2013-05-08 | 中集船舶海洋工程设计研究院有限公司 | Driving system of self-elevating type ocean platform |
| CN103183109A (en) * | 2011-12-30 | 2013-07-03 | 上海振华重工(集团)股份有限公司 | Ocean wind power mounting platform |
| CN102628264A (en) * | 2012-04-19 | 2012-08-08 | 吴平平 | Elevating device for self-elevating drilling platform |
| CN103015388B (en) * | 2013-01-21 | 2015-01-14 | 上海振华重工(集团)股份有限公司 | Self-elevating platform lifting device allowing for dynamically detection of load |
| CN103015388A (en) * | 2013-01-21 | 2013-04-03 | 上海振华重工(集团)股份有限公司 | Self-elevating platform lifting device allowing for dynamically detection of load |
| CN103343800A (en) * | 2013-07-16 | 2013-10-09 | 四川宏华石油设备有限公司 | Speed reducer structure of lifting type platform lifting system |
| CN106458541A (en) * | 2014-05-08 | 2017-02-22 | 西门子公司 | Gear pair for a lifting vessel |
| US9982408B2 (en) | 2014-05-08 | 2018-05-29 | Siemens Aktiengesellschaft | Gear pair for a lifting vessel |
| CN106458541B (en) * | 2014-05-08 | 2018-10-30 | 弗兰德有限公司 | Crane ship transmission device pair |
| CN106759209A (en) * | 2016-12-08 | 2017-05-31 | 太原重工股份有限公司 | Self-elevating drilling platform and its lowering or hoisting gear |
| CN109736280A (en) * | 2019-01-04 | 2019-05-10 | 武汉船用机械有限责任公司 | A kind of brake apparatus for self-elevating ocean platform jacking system |
| CN109736281A (en) * | 2019-01-04 | 2019-05-10 | 武汉船用机械有限责任公司 | Gear rack lifting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nantong Zhenhua Heavy Equipment Manufacturing Co., Ltd. Assignor: Shanghai Zhenhua Heavy Industries (Group) Co., Ltd. Contract record no.: 2011320000315 Denomination of utility model: Lifting mechanism of self-elevating drilling platform Granted publication date: 20100721 License type: Common License Record date: 20110318 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Zhenhua Heavy Industry Group (Nantong) Transmission Machinery Co.,Ltd. Assignor: Shanghai Zhenhua Heavy Industries (Group) Co., Ltd. Contract record no.: 2012320000327 Denomination of utility model: Lifting mechanism of self-elevating drilling platform Granted publication date: 20100721 License type: Common License Record date: 20120328 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Zhenhua Heavy Industry Group (Nantong) Co., Ltd. Assignor: Shanghai Zhenhua Heavy Industries (Group) Co., Ltd. Contract record no.: 2012320000539 Denomination of utility model: Lifting mechanism of self-elevating drilling platform Granted publication date: 20100721 License type: Common License Record date: 20120425 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |