CN102518101A - Unlocking method for pile leg locking device unlocked by double worms and structure of unlocking method - Google Patents
Unlocking method for pile leg locking device unlocked by double worms and structure of unlocking method Download PDFInfo
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- CN102518101A CN102518101A CN2011104190162A CN201110419016A CN102518101A CN 102518101 A CN102518101 A CN 102518101A CN 2011104190162 A CN2011104190162 A CN 2011104190162A CN 201110419016 A CN201110419016 A CN 201110419016A CN 102518101 A CN102518101 A CN 102518101A
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- pile leg
- leg locking
- voussoir
- locking piece
- assembly
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Abstract
The invention relates to an unlocking method for a pile leg locking device unlocked by double worms and a structure of the unlocking method. The unlocking method includes that at first, the two worms of a double worm gear and worm transmission assembly synchronously rotate in the same direction, worm gears are driven so that required twist power is achieved to drive a top wedge block to rise, the top wedge block is separated from a pile leg locking block, after the top wedge block is thoroughly separated from the pile leg locking block, a bottom transmission assembly begins to actuate and drives a bottom wedge block of the bottom transmission assembly to descend, the bottom wedge block is separated from the pile leg locking block, after the bottom wedge block is thoroughly separated form the pile leg locking block, the pile leg locking block beings to be separated from a climbing rack under effects of side tension, the pile leg locking block separated from the climbing rack is finally driven by a lock pin cylinder of a centralizer assembly, a lock pin of the centralizer assembly extends to limit and fix the pile leg locking block so as to prevent the pile leg locking block from slipping down, an unlocking action is finished, and at the moment, the weight of a platform is born by a lifting system. After the scheme is adopted, action is stable, bearing ability and weatherliness of the platform during operation are improved.
Description
Technical field
The present invention relates to the technical field of offshore boring island auxiliary equipment, refer in particular to a kind of unlock method and structure thereof of the pile leg locking device with the twin worm release.
Background technology
Convention in the industry; When traditional pile leg locking device that is used for self-elevating drilling platform is worked, because the platform weight long-time bearing on locking device, causes easily release of locking device; Simultaneously in releasing process; Occur the worm and gear stuck phenomenon easily, have a strong impact on the supporting capacity and the weatherliness of platform, reduce its security reliability; In addition, situation such as the pile leg locking piece tilts, the pile leg locking piece can't accurately be fixed appear in pile leg locking device in the past easily, have certain potential safety hazard.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, the unlock method and the structure thereof with the pile leg locking device of twin worm release of a kind of reliable, stable action reasonable in design, raising platform supporting capacity and weatherliness when operation is provided.
For realizing above-mentioned purpose, its unlock method of technical scheme provided by the present invention is: during release, at first two of double worm and gear drive assembly worm screws are rotated synchronously in the same way; Drive turbine and reach required torque forces and drive the top voussoir and rise, itself and pile leg locking piece are broken away from, when top voussoir fully and after the disengaging of pile leg locking piece; This moment, the bottom drive assembly began action; Drive its bottom voussoir and descend, itself and pile leg locking piece are broken away from, after the bottom voussoir breaks away from the pile leg locking piece fully; This moment, the pile leg locking piece began to break away from the tooth bar that climbs under the effect of side direction pulling force; Pile leg locking piece after the disengaging fixes pile leg locking piece after the lock pin of this erection device assembly of lock pin hydraulic oil cylinder driving of erection device assembly stretches out, prevents its downslide; Completion release action, the weight of platform will be born by jacking system this moment.
Its structure includes seat assembly behind seat assembly behind top drive assembly, the top voussoir, side direction pull action cylinder assembly, the bottom voussoir, pile leg locking piece, bottom drive assembly; Wherein, Described top drive assembly and bottom drive assembly correspondence are installed in the upper and lower position of hull; And the pile leg locking piece through the tooth bar both sides of climbing on the top voussoir that carries and bottom voussoir and the spud leg matches and acts on this tooth bar that climbs respectively; Correspondence is equipped with the side direction pull action cylinder assembly that acts on the pile leg locking piece on hull simultaneously; Make the pile leg locking piece to be meshed with the tooth bar that climbs or to break away from through the side direction pull action cylinder assembly and the acting in conjunction of bottom drive assembly, each above-mentioned top voussoir and bottom voussoir are led by seat assembly behind seat assembly and the bottom voussoir behind the top voussoir of a side separately respectively; It also includes to be installed on the hull and to corresponding pile leg locking piece and leads and spacing fixing erection device assembly, and described erection device assembly includes the baffle plate that is installed on the hull, the lock pin that is installed in the lock pin oil cylinder on this baffle plate and is stretched by this lock pin hydraulic oil cylinder driving; The double worm and gear drive assembly that described top drive assembly includes the top voussoir and drives this top voussoir oscilaltion; Wherein, Described double worm and gear drive assembly mainly turns to identical worm screw, two hydraulic motors to form by worm gear, two; Equal and the worm wheel of these two worm screws, and the corresponding both sides that are located at this worm gear are driven by corresponding hydraulic motor respectively.
The present invention is after having adopted such scheme; Its great advantage is that the present invention is through the locking to the tooth bar that climbs on the spud leg; Increase the holding power of platform on spud leg,, improve platform supporting capacity and weatherliness when operation with the jacking system acting in conjunction or do the time spent separately.Because top of the present invention drive assembly adopts the mode of double worm and gear transmission; More single worm and gear transmission, double worm and gear can transmit bigger moment of torsion, structure is more reliable, and unlocking function is more powerful; In releasing process, can realize the light release of locking device like this.In addition; Since the present invention have additional to the pile leg locking piece lead with spacing fixing erection device assembly, and then make the pile leg locking piece locking or unlocking process in stable action, can prevent the run-off the straight of pile leg locking piece effectively; And release is stretched out lock pin through the lock pin oil cylinder after finishing; Can exactly the pile leg locking piece be fixed, increase its reliability, satisfy job requirements.
Description of drawings
Fig. 1 is the sketch map of released state of the present invention.
Fig. 2 is the sketch map of locking state of the present invention.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 2.
The specific embodiment
Below in conjunction with specific embodiment the present invention is described further.
Shown in accompanying drawing 1 to accompanying drawing 4; The described pile leg locking structure of present embodiment with the twin worm release; It includes seat assembly 4 behind seat assembly 2 behind top drive assembly 1, the top voussoir, side direction pull action cylinder assembly 3, the bottom voussoir, pile leg locking piece 5, erection device assembly 6, bottom drive assembly 7; Wherein, Described top drive assembly 1 and bottom drive assembly 7 correspondences are installed in the upper and lower position of hull; And the pile leg locking piece 5 through tooth bar 15 both sides of climbing on the top voussoir that carries 8 and bottom voussoir 9 and the spud leg matches and acts on this tooth bar 15 that climbs respectively; Simultaneously correspondingly on hull the side direction pull action cylinder assembly 3 that acts on pile leg locking piece 5 is installed and corresponding pile leg locking piece 5 is led and spacing fixing erection device assembly 6; Make pile leg locking piece 5 to be meshed with the tooth bar 15 that climbs or to break away from through the side direction pull action cylinder assembly 3 and the acting in conjunction of bottom drive assembly 7, above-mentioned each top voussoir 8 and bottom voussoir 9 are led by seat assembly 4 behind seat assembly 2 behind the top voussoir of a side separately and the bottom voussoir respectively.In releasing process, because the platform weight long-time bearing on locking device, causes easily release of locking device; To this situation; The top drive assembly 1 of this locking device adopts the mode of double worm and gear transmission, the double worm and gear drive assembly 10 that it includes top voussoir 8 and drives these top voussoir 8 oscilaltions, wherein; Described double worm and gear drive assembly 10 mainly turns to 12,14, two hydraulic motors 13 of identical worm screw to form by worm gear 11, two; These two worm screws 12,14 are all matched with worm gear 11, and the corresponding both sides that are located at this worm gear 11, respectively by 13 drivings of corresponding hydraulic motor.Because very difficulty of a pair of worm and gear device is arranged and installed in the restriction of installation environment, in order to realize that assembling two cover worm and gear devices has enough spaces, the present invention has dwindled installing space with worm screw mounting portion modularization, convenient dismounting.The more single worm and gear transmission of such design, double worm and gear can transmit bigger moment of torsion, structure is more reliable, and unlocking function is more powerful, in releasing process, can realize the light release of locking device like this.In addition; Because erection device assembly of the present invention 6 is mainly by being installed in baffle plate 16 on the hull, being installed in the lock pin oil cylinder 17 on this baffle plate 16 and driving flexible lock pin 18 by this lock pin oil cylinder 17 and constitute; Such design makes the present invention to drive lock pin 18 through lock pin oil cylinder 17 and to carry out freely stretching according to the needs of locking or release action, realizes guiding and the position-limiting action of pile leg locking piece 5 in locking or releasing process; Make pile leg locking piece 5 locking or releasing process in stable action; Can prevent pile leg locking piece 5 run-off the straight phenomenons effectively, and release is stretched out lock pin 18 through lock pin oil cylinder 17 after finishing, can be exactly that pile leg locking piece 5 is fixing; Increase its reliability, satisfy job requirements.Below be the detailed process of locking action of the present invention and release action: during locking action, the lock pin oil cylinder 17 of erection device assembly 6 at first moves, and drives lock pin 18 withdrawals; Let pile leg locking piece 5 be in free state, at this moment, pile leg locking piece 5 begins to press to the tooth bar 15 that climbs under the effect of side direction pull action cylinder assembly 3; When pile leg locking piece 5 fully with after the tooth bar 15 that climbs is meshed; Bottom drive assembly 7 begins action, voussoir 9 risings bottom having driven, and bottom voussoir 9 seat assembly 4 behind the voussoir of bottom contacts with pile leg locking piece 5; When the bottom of bottom drive assembly 7 voussoir 9 fully with after pile leg locking piece 5 contacts; This moment, the top drive assembly 1 began action, descended through its double worm and gear drive assembly 10 drive top voussoirs 8, and top voussoir 8 seat assembly 2 behind the voussoir of top contacts with pile leg locking piece 5; Until top voussoir 8 contact with pile leg locking piece 5 fully fix after; Accomplish locking action of the present invention, locking is accomplished rear platform weight and will be delivered on the locking device by jacking system, makes platform more safe and reliable; During the release action, top drive assembly 1 at first moves, and two worm screws 12,14 of its double worm and gear drive assembly 10 are rotated synchronously in the same way; Drive turbine 11 and reach required torque forces and drive top voussoir 8 and rise, top voussoir 8 seat assembly 2 behind the voussoir of top breaks away from pile leg locking piece 5, when top voussoir 8 fully with 5 disengagings of pile leg locking piece after; This moment, bottom drive assembly 7 began action; Drive its bottom voussoir 9 and descend, bottom voussoir 9 seat assembly 4 behind the voussoir of bottom breaks away from pile leg locking piece 5, after bottom voussoir 9 breaks away from pile leg locking piece 5 fully; Pile leg locking piece 5 begins to break away from the tooth bar 15 that climbs under the effect of side direction pull action cylinder assembly 3; Pile leg locking piece 5 after the disengaging fixes pile leg locking piece 5 after the lock pin 18 that the lock pin oil cylinder 17 of erection device assembly 6 drives this erection device assembly 6 stretches out, prevents its downslide; Completion release action, the weight of platform will be born by jacking system this moment.
The embodiment of the above only is the present invention's preferred embodiment, is not to limit practical range of the present invention with this, so the variation that all shapes according to the present invention, principle are done all should be encompassed in protection scope of the present invention.
Claims (2)
1. unlock method with the pile leg locking device of twin worm release is characterized in that: during release, at first two of double worm and gear drive assembly worm screws are rotated synchronously in the same way; Drive turbine and reach required torque forces and drive the top voussoir and rise, itself and pile leg locking piece are broken away from, when top voussoir fully and after the disengaging of pile leg locking piece; This moment, the bottom drive assembly began action; Drive its bottom voussoir and descend, itself and pile leg locking piece are broken away from, after the bottom voussoir breaks away from the pile leg locking piece fully; This moment, the pile leg locking piece began to break away from the tooth bar that climbs under the effect of side direction pulling force; Pile leg locking piece after the disengaging fixes pile leg locking piece after the lock pin of this erection device assembly of lock pin hydraulic oil cylinder driving of erection device assembly stretches out, prevents its downslide; Completion release action, the weight of platform will be born by jacking system this moment.
2. pile leg locking structure of carrying out release according to the said method of claim 1; It includes seat assembly (4) behind seat assembly (2) behind top drive assembly (1), the top voussoir, side direction pull action cylinder assembly (3), the bottom voussoir, pile leg locking piece (5), bottom drive assembly (7); Wherein, Described top drive assembly (1) and bottom drive assembly (7) correspondence are installed in the upper and lower position of hull; And the pile leg locking piece (5) through the tooth bar that climbs (15) both sides on the top voussoir (8) that carries and bottom voussoir (9) and the spud leg matches and acts on this tooth bar that climbs (15) respectively; Correspondence is equipped with the side direction pull action cylinder assembly (3) that acts on pile leg locking piece (5) on hull simultaneously; Make pile leg locking piece (5) to be meshed with the tooth bar that climbs (15) or to break away from through the side direction pull action cylinder assembly (3) and the acting in conjunction of bottom drive assembly (7), each above-mentioned top voussoir (8) and bottom voussoir (9) are led by seat assembly (4) behind seat assembly (2) and the bottom voussoir behind the top voussoir of a side separately respectively; It is characterized in that: it also includes to be installed on the hull and to corresponding pile leg locking piece (5) and leads and spacing fixing erection device assembly (6), and described erection device assembly (6) includes the baffle plate (16) that is installed on the hull, the lock pin (18) that is installed in the lock pin oil cylinder (17) on this baffle plate (16) and is stretched by this lock pin oil cylinder (17) driving; The double worm and gear drive assembly (10) that described top drive assembly (1) includes top voussoir (8) and drives this top voussoir (8) oscilaltion; Wherein, Described double worm and gear drive assembly (10) mainly turns to identical worm screw (12,14), two hydraulic motors (13) to form by worm gear (11), two; These two worm screws (12,14) are all matched with worm gear (11); And correspondence is located at the both sides of this worm gear (11), is driven by corresponding hydraulic motor (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104190162A CN102518101A (en) | 2011-12-15 | 2011-12-15 | Unlocking method for pile leg locking device unlocked by double worms and structure of unlocking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104190162A CN102518101A (en) | 2011-12-15 | 2011-12-15 | Unlocking method for pile leg locking device unlocked by double worms and structure of unlocking method |
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| Publication Number | Publication Date |
|---|---|
| CN102518101A true CN102518101A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104190162A Pending CN102518101A (en) | 2011-12-15 | 2011-12-15 | Unlocking method for pile leg locking device unlocked by double worms and structure of unlocking method |
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| CN (1) | CN102518101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836168A (en) * | 2017-01-13 | 2017-06-13 | 广东精铟海洋工程股份有限公司 | It is a kind of for the safe float mechanism of offshore platform and its jacking system |
| CN107574807A (en) * | 2017-08-31 | 2018-01-12 | 武汉船用机械有限责任公司 | A kind of hydraulic bolt hoistable platform |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611645A (en) * | 1994-06-06 | 1997-03-18 | Breeden; John | Offshore jack-up rig locking system |
| TW431986B (en) * | 1997-06-26 | 2001-05-01 | Letourneau Inc | Jack-up platform locking apparatus |
| CN101871208A (en) * | 2010-06-01 | 2010-10-27 | 崔峰 | Locking device with double spherical hinge bearing structure for pile legs of self-elevating drilling platform |
| CN101914911A (en) * | 2010-07-20 | 2010-12-15 | 崔锋 | Twin-worm locking device for self-elevating drilling platform |
| CN102230843A (en) * | 2011-03-21 | 2011-11-02 | 吴平平 | Single-row locking device tester |
| CN202031074U (en) * | 2011-03-25 | 2011-11-09 | 上海振华重工(集团)股份有限公司 | Locking device for positioning self-elevating engineering platform |
| CN202401444U (en) * | 2011-12-15 | 2012-08-29 | 广东精铟机械有限公司 | Pile leg locking device for unlocking by using double worms |
-
2011
- 2011-12-15 CN CN2011104190162A patent/CN102518101A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611645A (en) * | 1994-06-06 | 1997-03-18 | Breeden; John | Offshore jack-up rig locking system |
| TW431986B (en) * | 1997-06-26 | 2001-05-01 | Letourneau Inc | Jack-up platform locking apparatus |
| CN101871208A (en) * | 2010-06-01 | 2010-10-27 | 崔峰 | Locking device with double spherical hinge bearing structure for pile legs of self-elevating drilling platform |
| CN101914911A (en) * | 2010-07-20 | 2010-12-15 | 崔锋 | Twin-worm locking device for self-elevating drilling platform |
| CN102230843A (en) * | 2011-03-21 | 2011-11-02 | 吴平平 | Single-row locking device tester |
| CN202031074U (en) * | 2011-03-25 | 2011-11-09 | 上海振华重工(集团)股份有限公司 | Locking device for positioning self-elevating engineering platform |
| CN202401444U (en) * | 2011-12-15 | 2012-08-29 | 广东精铟机械有限公司 | Pile leg locking device for unlocking by using double worms |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836168A (en) * | 2017-01-13 | 2017-06-13 | 广东精铟海洋工程股份有限公司 | It is a kind of for the safe float mechanism of offshore platform and its jacking system |
| CN106836168B (en) * | 2017-01-13 | 2019-01-29 | 广东精铟海洋工程股份有限公司 | A kind of safe float mechanism and its jacking system for offshore platform |
| CN107574807A (en) * | 2017-08-31 | 2018-01-12 | 武汉船用机械有限责任公司 | A kind of hydraulic bolt hoistable platform |
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Application publication date: 20120627 |