CN101871208B - Locking device with double spherical hinge bearing structure for pile legs of self-elevating drilling platform - Google Patents
Locking device with double spherical hinge bearing structure for pile legs of self-elevating drilling platform Download PDFInfo
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- CN101871208B CN101871208B CN2010101935234A CN201010193523A CN101871208B CN 101871208 B CN101871208 B CN 101871208B CN 2010101935234 A CN2010101935234 A CN 2010101935234A CN 201010193523 A CN201010193523 A CN 201010193523A CN 101871208 B CN101871208 B CN 101871208B
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Abstract
The invention provides a locking device with hinge with a double spherical hinge bearing structure for pile legs of a self-elevating drilling platform, which comprises a top locking assembly, a bottom locking assembly and a locking block, wherein the locking block is tabled on a pile leg rack through a cog, and the top locking assembly and the bottom locking assembly are respectively assembled on bearing platforms at the upper side and the lower side of the locking block and are respectively contacted with the locking block through a top wedge block and a bottom wedge block; and a top upper spherical hinge, a top lower spherical hinge, a bottom upper spherical hinge and a bottom lower spherical hinge are respectively arranged at the contact places of the top locking assembly and the bottom locking assembly as well as the bearing platform, the top wedge block and the bottom wedge block. With the scheme, the invention not only ensures the effective locking of the platform, but also solves the problem that the locking device is difficult to unlock; and each locking device is uniformly loaded after locking, and the load smoothly transfer between a lifting device and the locking device, thereby greatly saving the operating time of the staff.
Description
Technical field:
The present invention relates to the offshore drilling platform technical field, refer in particular to a kind of pile legs of self-elevating drilling platform locking device with double spherical hinge bearing structure.
Background technology:
Self-elevating drilling platform is to rely on three or four spud legs to support whole platform weight to carry out operation on the sea, owing to build the raising of code requirement, most of self-elevating drilling platform of building all requires to possess pile leg locking device at present, makes platform reach the weatherliness of code requirement.
Present existing pile leg locking device all is the self-lock mechanism of utilizing screw thread basically, finishes the spud leg constraint from vertical and horizontal direction, thereby reaches locking effect.But various existing locking device forms, all there are some functional disadvantage, its locking device must possess the load under the maximum storm state that independently bears designing requirement, when needs are born load fully by locking device, normally realizes by the brake that discharges jacking system.In this passive load transfer process, can aggravate original load uneven phenomenon unavoidably, and be accompanied by impact to a certain degree.And because platform is equipped with a plurality of locking devices, locking operation is to finish by the platform personnel operation, causes the bearing capacity of every group of locking device to occur difference unavoidably, can not effectively utilize the supporting capacity of every group of device from branch.And because long-time locking to spud leg, and the localised load of platform changes in this process, the perhaps influence of factors such as the bullet of Ship Structure, plastic strain, existing various locking device is the phenomenon of ubiquity release difficulty all, and this point often brings a lot of troubles to execute-in-place.Though various locking device has all been taked some measures of using under emergency rating, implement and all have a lot of inconvenience.The for example present sand cushion device that comparatively generally adopts, after utilizing the release of sand pad, the sand pad that must more renew could continue to use.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, a kind of harmful effect that horizontal component brings can eliminate release to greatest extent the time is provided, and locking, the simple, fast pile legs of self-elevating drilling platform locking device with double spherical hinge bearing structure of unlocking operation.
For achieving the above object, technical scheme provided by the present invention is: a kind of pile legs of self-elevating drilling platform locking device with double spherical hinge bearing structure, described locking device includes the top latch assembly, the bottom latch assembly, latch segment, wherein, latch segment is entrenched on the spud leg tooth bar by teeth, the top latch assembly, the bottom latch assembly is assemblied on the latch segment respectively, on the carrying platform of following both sides, and respectively by the top voussoir, the bottom voussoir contacts the top latch assembly with latch segment, bottom latch assembly and carrying platform, the top voussoir, bottom voussoir touching position is respectively equipped with spherical hinge on the top, top lower peripheral surface hinge, spherical hinge and bottom lower peripheral surface hinge on the bottom.
Described top latch assembly includes the top oil cylinder, the top piston bar, top nut shell, top screws, the top nut, the top worm screw, wherein, the top oil cylinder is assemblied on the carrying platform of latch segment top, its assembling contact position is provided with spherical hinge on the top, oil cylinder lower end, top is connected with top nut shell, top screws is positioned at top nut shell, and it is mutually meshing with the top nut that is positioned at top nut shell, the top worm screw is assemblied in the nut shell outside, top, and be connected with the top nut in the nut shell of top, top piston bar one end is positioned at the top oil cylinder, the other end contacts with the top voussoir after passing top screws, top piston bar and top voussoir touching position are provided with top lower peripheral surface hinge, voussoir one end in top is assemblied on the carrying platform by top voussoir base, the top voussoir other end contacts the top voussoir at the position that contacts with the latch segment upper end, latch segment is the inclined plane, its incline direction unanimity.
Described bottom latch assembly includes the bottom screw rod, bottom nut, the bottom worm screw, the bottom nut shell, wherein, the bottom nut shell is assemblied on the carrying platform of latch segment below, its assembling contact position is provided with bottom lower peripheral surface hinge, bottom nut is positioned at the bottom nut shell, the bottom worm screw is assemblied in the bottom nut shell outside, and be connected with bottom nut, bottom screw rod one end is assemblied on the carrying platform of bottom nut shell below, the other end contacts with the bottom voussoir after passing bottom nut, the contact position of bottom screw rod and bottom voussoir is provided with the bottom and goes up spherical hinge, bottom voussoir one end is assemblied on the carrying platform by bottom voussoir base, the bottom voussoir other end contacts the bottom voussoir at the position that contacts with the latch segment lower end, latch segment is the inclined plane, its incline direction unanimity.
Described top latch assembly, bottom latch assembly are many groups, and radial distribution is in the spud leg tooth bar outside.
Described carrying platform is provided with the side direction pull action cylinder, and the cylinder body of side direction pull action cylinder is installed on the carrying platform, and the piston rod and the latch segment of side direction pull action cylinder are hinged.
The present invention after having adopted such scheme, adopted such scheme after, when platform carries out locking operation, embed on the spud leg tooth bar by the teeth of side direction pull action cylinder one by one earlier, and push down with the top voussoir with latch segment.Give the pressurization of the oil cylinder in the latch assembly then, increase along with oil cylinder working-pressure, the former cause top screws of platform, the gravitational load of top nut carrying is born by several top piston bars fully, in the locking process, when a plurality of oil cylinders are according to same pressure-loaded on the platform, each latch assembly is in automatically all carries state, its weight of sharing is roughly uniform, handle top screws this moment one by one, the top nut, make top screws prop up the top voussoir, and it is locked by the top worm screw, after finishing, locking gives the decompression of the oil cylinder in the latch assembly, gravity load on the top piston bar is unloaded, and platform weight is just stably by several top screws, the top nut, top voussoir and latch segment are delivered on the spud leg tooth bar, have finished the locking to platform.When the needs release, because the locking of long period, and the variation of the stressed and horizontal component of platform during the locking, often between each drive disk assembly of locking device, produce elastic deformation and very big frictional resistance, cause the release difficulty.This programme adopts two spherical hinges in latch assembly after, when the horizontal component of platform acts on the screw rod in the latch assembly, the nut and the nut shell that it are produced constraint are in quick condition, eliminate the restraint forces that therefore produces, eliminated the harmful effect that horizontal component brings to greatest extent.During release, oil cylinder pressurization in the latch assembly, increase along with oil cylinder working-pressure, the former cause top screws of platform, the gravitational load of top nut carrying is born by several top piston bars fully, top screws, gravity on the nut of top is unloaded, under the cooperation of two spherical hinges, the complex stress that bears on it disappears, elastic deformation and frictional resistance are reduced to minimum, top screws, the top nut is rollback easily, in top screws, behind the complete rollback of top nut, give the decompression of the oil cylinder in the latch assembly, make the gravity load unloading on the top piston bar, platform is released to by original check mechanism by deadweight and bears weight, and unlocking operation is finished.After adopting this programme, guaranteed that promptly platform effectively locks, solved the problem of locking device release difficulty again, and can make each locking device stand under load even after the locking, load is smooth transfer between lifting appliance and locking device, saves staff's activity duration greatly.
Description of drawings:
Fig. 1 is an overall structure floor map of the present invention.
Fig. 2 is the sectional view of top of the present invention latch assembly, bottom latch assembly.
Fig. 3 is the spherical hinge sectional view in top of the present invention latch assembly, the bottom latch assembly.
Reference numeral: 1-top oil cylinder, 2-top piston bar, 3-top nut shell, the 4-top screws, 5-top nut, 6-top worm screw, 7-top voussoir, 8-top voussoir base, 9-side direction pull action cylinder, the 10-latch segment, 11-bottom voussoir, 12-bottom voussoir base, 13-bottom screw rod, the 14-bottom nut, 15-bottom worm screw, 16-spud leg tooth bar, 17-top latch assembly, 18-bottom latch assembly, spherical hinge on the 19-top, 20-top lower peripheral surface hinge, the 21-carrying platform, 22-bottom nut shell, 23-bottom lower peripheral surface hinge, spherical hinge on the 24-bottom.
The specific embodiment:
The invention will be further described to accompanying drawing 3 below in conjunction with accompanying drawing 1, preferred embodiment of the present invention is: the described pile legs of self-elevating drilling platform locking device with double spherical hinge bearing structure of present embodiment, described locking device includes top latch assembly 17, bottom latch assembly 18, latch segment 10, wherein, latch segment 10 is entrenched on the spud leg tooth bar 16 by teeth, carrying platform 21 is provided with side direction pull action cylinder 9, the cylinder body of side direction pull action cylinder 9 is installed on the carrying platform 21, and the piston rod of side direction pull action cylinder 9 and latch segment 10 are hinged.Top latch assembly 17, bottom latch assembly 18 are many groups, radial distribution is in spud leg tooth bar 16 outsides, and be assemblied on the carrying platform 21 of latch segment 10 upper and lower both sides, and contact with latch segment 10 by top voussoir 7, bottom voussoir 11, top latch assembly 17, bottom latch assembly 18 are respectively equipped with spherical hinge 24 and bottom lower peripheral surface hinge 23 on spherical hinge 19 on the top, top lower peripheral surface hinge 20, the bottom with carrying platform 21, top voussoir 7, bottom voussoir 11 touching positions.This programme is after adopting two spherical hinges, when the horizontal component of carrying platform 21 acts on the screw rod in the latch assembly, the nut and the nut shell that it are produced constraint are in quick condition, eliminated the restraint forces that therefore platform produces, the harmful effect that horizontal component brings when having eliminated release to greatest extent.Top latch assembly 17 includes top oil cylinder 1, top piston bar 2, top nut shell 3, top screws 4, top nut 5, top worm screw 6, wherein, top oil cylinder 1 is assemblied on the carrying platform 21 of latch segment 10 tops, its assembling contact position is provided with spherical hinge 19 on the top, oil cylinder 1 lower end in top is connected with top nut shell 3, top screws 4 is positioned at top nut shell 3, and it is mutually meshing with the top nut 5 that is positioned at top nut shell 3, top worm screw 6 is assemblied in nut shell 3 outsides, top, and be connected with the top nut 5 in the top nut shell 3, top piston bar 2 one ends are positioned at top oil cylinder 1, the other end passes top screws 4 backs and contacts with top voussoir 7 upper ends, top piston bar 2 is provided with top lower peripheral surface hinge 20 with top voussoir 7 touching positions, top voussoir 7 is assemblied on the carrying platform 21 by top voussoir base 8, and voussoir 7 lower ends in top contact with latch segment 10 upper ends, the top voussoir 7 at position contacts, latch segment 10 is the inclined plane, its incline direction unanimity.Bottom latch assembly 18 includes bottom screw rod 13, bottom nut 14, bottom worm screw 15, bottom nut shell 22, wherein, bottom nut shell 22 is assemblied on the carrying platform 21 of latch segment 10 belows, its assembling contact position is provided with bottom lower peripheral surface hinge 23, bottom nut 14 is positioned at bottom nut shell 22, worm screw 15 is assemblied in bottom nut shell 22 outsides in the bottom, and be connected with bottom nut 14, bottom screw rod 13 1 ends are assemblied on the carrying platform 21 of bottom nut shell 22 belows, the other end passes bottom nut 14 backs and contacts with bottom voussoir 11 lower ends, bottom screw rod 13 is provided with upward spherical hinge 24 of bottom with the contact position of bottom voussoir 11, bottom voussoir 11 is assemblied on the carrying platform 21 by bottom voussoir base 12, and voussoir 11 upper ends in bottom contact with latch segment 10 lower ends, the bottom voussoir 11 at position contacts, latch segment 10 is the inclined plane, its incline direction unanimity.When platform carries out locking operation, embed on the spud leg tooth bar 16 by the teeth of side direction pull action cylinder 9 one by one earlier, and push down with top voussoir 11 with latch segment 10.Give the pressurization of the oil cylinder in the top latch assembly 17 then, increase along with oil cylinder working-pressure, the former cause top screws 4 of platform, the gravitational load of top nut 5 carryings is born by several top piston bars 2 fully, in the locking process, when a plurality of oil cylinders are according to same pressure-loaded on the platform, each latch assembly is in automatically all carries state, its weight of sharing is roughly uniform, handle top screws 4 this moment one by one, top nut 5, make top screws 4 prop up top voussoir 7, and pass through top worm screw 6 with its locking, after finishing, locking gives the decompression of the oil cylinder in the latch assembly, gravity load on the top piston bar 2 is unloaded, and platform weight is just stably by several top screws 4, top nut 5, top voussoir 7 and latch segment 10 are delivered on the spud leg tooth bar 16, have finished the locking to platform.When the needs release, because the locking of long period, and the variation of the stressed and horizontal component of platform during the locking, often between each drive disk assembly of locking device, produce elastic deformation and very big frictional resistance, cause the release difficulty.This programme adopts two spherical hinges in latch assembly after, when the horizontal component of platform acts on the screw rod in the latch assembly, the nut and the nut shell that it are produced constraint are in quick condition, eliminate the restraint forces that therefore produces, eliminated the harmful effect that horizontal component brings to greatest extent.During release, oil cylinder pressurization in the latch assembly, increase along with oil cylinder working-pressure, the former cause top screws 4 of platform, the gravitational load of top nut 5 carryings is born by several top piston bars 2 fully, top screws 4, gravity on the top nut 5 is unloaded, under the cooperation of two spherical hinges, the complex stress that bears on it disappears, elastic deformation and frictional resistance are reduced to minimum, top screws 4, top nut 5 is rollback easily, in top screws 4, behind the top nut 5 complete rollbacks, give the decompression of the oil cylinder in the latch assembly, make the gravity load unloading on the top piston bar 2, platform is released to by original check mechanism by deadweight and bears weight, and unlocking operation is finished.After adopting this programme, guaranteed that promptly platform effectively locks, solved the problem of locking device release difficulty again, and can make each locking device stand under load even after the locking, load is smooth transfer between lifting appliance and locking device, saves staff's activity duration greatly.
The embodiment of the above is preferred embodiment of the present invention only, is not to limit practical range of the present invention with this, so the variation that all shapes according to the present invention, structure and principle are done all should be encompassed in protection scope of the present invention.
Claims (3)
1. pile legs of self-elevating drilling platform locking device with double spherical hinge bearing structure, it is characterized in that: described locking device includes top latch assembly (17), bottom latch assembly (18), latch segment (10), wherein, latch segment (10) is entrenched on the spud leg tooth bar (16) by teeth, top latch assembly (17), bottom latch assembly (18) is assemblied in respectively on the latch segment (10), on the carrying platform of following both sides (21), and respectively by top voussoir (7), bottom voussoir (11) contacts top latch assembly (17) with latch segment (10), bottom latch assembly (18) and carrying platform (21), top voussoir (7), bottom voussoir (11) touching position is respectively equipped with spherical hinge on the top (19), top lower peripheral surface hinge (20), spherical hinge on the bottom (24) and bottom lower peripheral surface hinge (23); Described top latch assembly (17) includes top oil cylinder (1), top piston bar (2), top nut shell (3), top screws (4), top nut (5), top worm screw (6), wherein, top oil cylinder (1) is assemblied on the carrying platform (21) of latch segment (10) top, its assembling contact position is provided with spherical hinge on the top (19), top oil cylinder (1) lower end is connected with top nut shell (3), top screws (4) is positioned at top nut shell (3), and it is mutually meshing with the top nut (5) that is positioned at top nut shell (3), top worm screw (6) is assemblied in top nut shell (3) outside, and be connected with the top nut (5) in the top nut shell (3), top piston bar (2) one ends are positioned at top oil cylinder (1), the other end passes top screws (4) back and contacts with top voussoir (7), top piston bar (2) is provided with top lower peripheral surface hinge (20) with top voussoir (7) touching position, voussoir (7) one ends in top are assemblied on the carrying platform (21) by top voussoir base (8), top voussoir (7) other end contacts with latch segment (10) upper end, the top voussoir (7) at position contacts, latch segment (10) is the inclined plane, its incline direction unanimity; Described bottom latch assembly (18) includes bottom screw rod (13), bottom nut (14), bottom worm screw (15), bottom nut shell (22), wherein, bottom nut shell (22) is assemblied on the carrying platform (21) of latch segment (10) below, its assembling contact position is provided with bottom lower peripheral surface hinge (23), bottom nut (14) is positioned at bottom nut shell (22), bottom worm screw (15) is assemblied in bottom nut shell (22) outside, and be connected with bottom nut (14), bottom screw rod (13) one ends are assemblied on the carrying platform (21) of bottom nut shell (22) below, the other end passes bottom nut (14) back and contacts with bottom voussoir (11), bottom screw rod (13) is provided with upward spherical hinge (24) of bottom with the contact position of bottom voussoir (11), bottom voussoir (11) one ends are assemblied on the carrying platform (21) by bottom voussoir base (12), bottom voussoir (11) other end contacts with latch segment (10) lower end, the bottom voussoir (11) at position contacts, latch segment (10) is the inclined plane, its incline direction unanimity.
2. a kind of pile legs of self-elevating drilling platform locking device with double spherical hinge bearing structure according to claim 1 is characterized in that: top latch assembly (17), bottom latch assembly (18) are many groups, and radial distribution is in spud leg tooth bar (16) outside.
3. a kind of pile legs of self-elevating drilling platform locking device according to claim 1 with double spherical hinge bearing structure, it is characterized in that: carrying platform (21) is provided with side direction pull action cylinder (9), the cylinder body of side direction pull action cylinder (9) is installed on the carrying platform (21), and the piston rod of side direction pull action cylinder (9) and latch segment (10) are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101935234A CN101871208B (en) | 2010-06-01 | 2010-06-01 | Locking device with double spherical hinge bearing structure for pile legs of self-elevating drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101935234A CN101871208B (en) | 2010-06-01 | 2010-06-01 | Locking device with double spherical hinge bearing structure for pile legs of self-elevating drilling platform |
Publications (2)
| Publication Number | Publication Date |
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| CN101871208A CN101871208A (en) | 2010-10-27 |
| CN101871208B true CN101871208B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101935234A Active CN101871208B (en) | 2010-06-01 | 2010-06-01 | Locking device with double spherical hinge bearing structure for pile legs of self-elevating drilling platform |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180238A (en) * | 2011-04-15 | 2011-09-14 | 宝鸡石油机械有限责任公司 | Locking device of self-elevating platform |
| CN102518100A (en) * | 2011-12-15 | 2012-06-27 | 吴平平 | Pile leg locking device unlocked by using deformed worm-gear and method for unlocking pile leg locking device |
| CN102518101A (en) * | 2011-12-15 | 2012-06-27 | 吴平平 | Unlocking method for pile leg locking device unlocked by double worms and structure of unlocking method |
| 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 |
| CN102518102A (en) * | 2011-12-15 | 2012-06-27 | 吴平平 | Pile locking method and device unlocked by using adjustable wedge block backseats |
| CN102839640B (en) * | 2012-09-06 | 2015-06-10 | 上海利策科技股份有限公司 | Locking mechanism for self-elevating drilling platform |
| CN104420454A (en) * | 2013-09-03 | 2015-03-18 | 四川宏华石油设备有限公司 | Worm structure of self-elevating drilling platform locking system |
| EP2868805A1 (en) * | 2013-10-30 | 2015-05-06 | Overdick GmbH & Co. KG | Lifting device with form-stable clamping element |
| CN104192771B (en) * | 2014-07-29 | 2017-01-11 | 武汉船用机械有限责任公司 | Gear and rack locking device |
| CN104278663B (en) * | 2014-09-18 | 2016-08-24 | 武汉船用机械有限责任公司 | A kind of locking device of gear rack lifting system |
| CN104805820B (en) * | 2014-11-05 | 2017-05-03 | 中集海洋工程研究院有限公司 | Truss pier leg structure and asymmetric main chord pipe thereof |
| CN105064310B (en) * | 2015-07-03 | 2017-04-05 | 武汉船用机械有限责任公司 | A kind of retaining mechanism of gear rack lifting system |
| CN106149659B (en) * | 2016-07-12 | 2018-06-26 | 武汉船用机械有限责任公司 | A kind of retaining mechanism |
| CN107386242B (en) * | 2017-06-01 | 2019-08-27 | 武汉船用机械有限责任公司 | A kind of locking device of gear rack lifting system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4269543A (en) * | 1979-08-29 | 1981-05-26 | Freiede & Goldman, Ltd. | Mobile, offshore, self-elevating (jack-up) unit leg/hull rigidification system |
| JPS60175624A (en) * | 1984-02-22 | 1985-09-09 | Mitsui Kaiyo Kaihatsu Kk | Wedging device for elevating leg column of off-shore working platform |
| CN100564693C (en) * | 2007-07-09 | 2009-12-02 | 中海油田服务股份有限公司 | A kind of self-elevating drilling rig locking device |
| CN201459700U (en) * | 2009-07-22 | 2010-05-12 | 上海振华重工(集团)股份有限公司 | Self-elevating engineering platform and locking device thereof |
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- 2010-06-01 CN CN2010101935234A patent/CN101871208B/en active Active
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Address after: 528231 Guangdong province Dali Nanhai District of Foshan City Industrial Park Ridge Changhong (two) on the eastern side of Hong Ling Road four non-ferrous metal processing zone Patentee after: GUANGDONG JINGYIN MACHINERY Co.,Ltd. Patentee after: CHINA OILFIELD SERVICES Ltd. Address before: 528231 Guangdong province Dali Nanhai District of Foshan City Industrial Park Ridge Changhong (two) on the eastern side of Hong Ling Road four non-ferrous metal processing zone Patentee before: FOSHAN JINGYIN MACHINERY Co.,Ltd. Patentee before: CHINA OILFIELD SERVICES Ltd. |
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Address after: 528241 Nanhai District, Guangdong City, Foshan Province town of water in the village on the south side of the road Patentee after: KEEN OFFSHORE ENGINEERING Co.,Ltd. Patentee after: CHINA OILFIELD SERVICES Ltd. Address before: 528231 Guangdong province Dali Nanhai District of Foshan City Industrial Park Ridge Changhong (two) on the eastern side of Hong Ling Road four non-ferrous metal processing zone Patentee before: GUANGDONG JINGYIN MACHINERY Co.,Ltd. Patentee before: CHINA OILFIELD SERVICES Ltd. |