CN103352454B - Pile leg locking mechanism in self-elevating ocean platform jacking system - Google Patents
Pile leg locking mechanism in self-elevating ocean platform jacking system Download PDFInfo
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- CN103352454B CN103352454B CN201310287713.6A CN201310287713A CN103352454B CN 103352454 B CN103352454 B CN 103352454B CN 201310287713 A CN201310287713 A CN 201310287713A CN 103352454 B CN103352454 B CN 103352454B
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- cam
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- spud leg
- baffle plate
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Abstract
The present invention relates to the pile leg locking mechanism in a kind of self-elevating ocean platform jacking system.It comprises: with the spud leg of stationary rack, two worm-and-wheel gears, two linkages, a cam mechanism and Liang Ge latch mechanisms, it is characterized in that: the input of described two worm-and-wheel gears connects power source, and output connects cam mechanism through two linkages respectively; Described cam mechanism is positioned at outside the tooth top of spud leg stationary rack, and Liang Ge latch mechanism is arranged on the both sides of spud leg stationary rack respectively; There are two to lock baffle plate under two hydraulic cylinder effects in described Liang Ge latch mechanism, make two to lock baffle plate snap close/release spud leg stationary rack; Under the driving of power source, through the transmission of two worm and gears and two linkages, the cam in cam mechanism swung and compresses/discharge described two locking baffle plates, thus realizing the locking/release of spud leg.This mechanism design is ingenious, and structure is simple, can be lifting of ocean platform system service better.
Description
Technical field
The present invention relates to the pile leg locking mechanism in a kind of self-elevating ocean platform jacking system.
Background technology
Along with the develop rapidly of seafari and offshore wind farm, traditional bottom-supported platform can not meet that the depth of water increases, the requirement of job enlargement, and jack-up unit just grows up.It is primarily of a barge shape hull (platform) and several Liftable type spud leg composition, and hull can be risen to sea certain altitude by liftable spud leg, and can support the operation at sea of whole platform.Both can be elevated hull, and also can be elevated spud leg, object is in order to operation at sea, and falling ship and rising stake is to move boat.Lifting ship and lifting pole action complete, and mainly complete by the lifting gear on hull.From functional requirement and the expansion demand thereof of ocean platform, how to carry out design and optimization to the structure of its jacking system, realizing lightweight will be an important research topic.
Summary of the invention:
The object of the invention is to the deficiency existed for prior art, the pile leg locking mechanism in a kind of self-elevating ocean platform jacking system is provided.This mechanism design is ingenious, and structure is simple, can be lifting of ocean platform system service better.
In order to achieve the above object, design of the present invention is:
Adopt a kind of translation cam mechanism, cam center is positioned on cam bolster, and cam bolster retrains cam, only allows it to have low-angle swinging; Then worm-and-wheel gear driving crank slide block mechanism moves, slider-crank mechanism exists in pairs, lay respectively at the left and right sides of translation cam, wherein, slide block is replaced by spherical roller, it and translation cam routing motion, translation cam is driven to swing to the left or to the right, due to the profile that cam is special, thus locking baffle plate compressed or unclamps, completing self-locking and unblock.In the motion of cam, need use location sensor to detect its position.
According to above-mentioned design concept, this novel mechanism adopts following technical proposals:
Pile leg locking mechanism in a kind of self-elevating ocean platform jacking system, comprise with the spud leg of stationary rack, two worm-and-wheel gears, two linkages, a cam mechanism and Liang Ge latch mechanisms, it is characterized in that: the input of described two worm-and-wheel gears connects power source, and output connects cam mechanism through two linkages respectively; Described cam mechanism is positioned at outside the tooth top of spud leg stationary rack, and Liang Ge latch mechanism is arranged on the both sides of spud leg stationary rack respectively; Have two to lock baffle plates under two hydraulic cylinder effects in described Liang Ge latch mechanism, make two lock baffle plates fast close-to be adjacent at a slow speed-leave spud leg stationary rack fast; Under the driving of power source, through the transmission of two worm and gears and two linkages, the cam in cam mechanism swung and compresses/discharge described two locking baffle plates, thus realizing the locking/release of spud leg.
Described worm-and-wheel gear comprises worm gear and worm engaging, and the rotating shaft of worm gear has drive splines connect power source, the rotating shaft of worm screw is fixedly connected with one end of in linkage short connecting rod.
Described linkage comprises long connecting rod and short connecting rod is hinged by connecting pin, and guarantee can be rotated mutually; The other end of two long connecting rods is threaded connection with two claws of cam mechanism respectively.
Described cam mechanism comprises a cam, two claws and two ball rollers; Circular shape is made in described cam bottom, and be convenient to locking, cam is provided with two position sensors, is used for detecting cam and whether turns to precalculated position; Described ball roller is processed with groove, and ball roller embeds cam by groove, completes reliable connection, and two ball rollers are rotatably installed on two claws respectively by pin.
Described Liang Ge latch mechanism comprises two hydraulic cylinders, two locking baffle plates and two cam support framves, cam support frame has sensor sensing point, with described two position sensor cooperatings; Described cam support frame is threaded connection and is fixed on locking baffle plate; Described hydraulic cylinder is connected, to ensure to relatively rotate with locking baffle plate by connecting pin; Have in described locking baffle plate double wedge can with spud leg stationary rack phase snap close; The end face of described cam support frame can compress mutually with described cam bottom arc surface.
Operating principle:
Pile leg locking mechanism in this self-elevating ocean platform jacking system is when the work of locking, after receiving latch signal, hydraulic cylinder stretches out, and promotes locking baffle plate and draws close towards vertical spud leg, until be adjacent to tooth bar base, the motion of hydraulic cylinder is followed: fast close-be adjacent at a slow speed-leave fast; Then, under the driving of motor, the worm and gear system be positioned on the right of tooth bar base promotes ball roller and moves downward along translation cam profile, correspondingly the worm and gear system on the vertical spud leg left side drives ball roller to move upward along cam contour with same motion mode, only have the worm and gear system of two sides, left and right jointly to participate in just preventing from carrying out in self-locking and releasing process, causing due to cam discontinuity deviation angle comparatively large, thus affect whole transmission.When the sensor sensing point on the position sensor be positioned on cam and corresponding cam support frame is on same plumb line, motor output shaft and worm and gear power shaft are staggered by commutation offset assembly, self-locking completes.
When the work of unblock, after receiving unlocking signal, by commutation offset assembly, the output shaft of motor is connected with worm and gear power shaft, the worm and gear frenulum be positioned on the right of tooth bar base moves ball roller and moves upward along translation cam profile, meanwhile, the worm and gear frenulum being positioned at the vertical spud leg left side moves ball roller and moves downward along translation cam profile.When the sensor sensing point on the nadir be positioned on cam and corresponding cam support frame is on same plumb line, by commutation offset assembly, motor output shaft and worm and gear power shaft are staggered, motor stop motion.Drag locking baffle plate by hydraulic cylinder subsequently and leave vertical spud leg, system unlocks completely.
The present invention compared with prior art, has following remarkable advantage: the present invention designs ingenious, and structure is simple, lightweight, replaces slide block mechanism in the past, solves the stressed excessive problem of slider support plate, solve the problem that actuated element is completely unsettled simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is worm gear structure figure.
Fig. 3 is linkage figure.
Fig. 4 is cam mechanism figure.
Fig. 5 is latch mechanism map.
Fig. 6 is that position sensor and sensor detect point diagram.
Fig. 7 be locking baffle plate and spud leg tooth bar coordinate figure.
Detailed description of the invention
Preferred embodiments of the present invention is explained as follows by reference to the accompanying drawings:
Embodiment one: see Fig. 1, pile leg locking mechanism in this self-elevating ocean platform jacking system is made up of the spud leg (1) of stationary rack, two worm-and-wheel gears (I), two linkages (II), a cam mechanism (III) and Liang Ge latch mechanisms (IV), it is characterized in that: the input of described two worm-and-wheel gears (I) connects power source, and output connects cam mechanism (III) through two linkages (II) respectively; Described cam mechanism (III) is positioned at outside the tooth top of spud leg (1) stationary rack, and Liang Ge latch mechanism (IV) is arranged on the both sides of spud leg (1) stationary rack respectively; Have in described Liang Ge latch mechanism (IV) two lock baffle plate (2,18) two hydraulic cylinders (3,19) effect under, make two lock baffle plate (2,18) fast close-be adjacent at a slow speed-leave fast spud leg (1) stationary rack; Under the driving of power source, through the transmission of two worm and gears (I) and two linkages (II), cam (16) in cam mechanism (III) swung and compresses/discharge described two lockings baffle plate (2,18), thus realizing the locking/release of spud leg.
Embodiment two: see Fig. 1-Fig. 7, the present embodiment is substantially identical with embodiment one, and special feature is as follows:
Described worm-and-wheel gear (I) comprises worm gear (9,10) and engages with worm screw (8,11), the rotating shaft of worm gear (9,10) has drive splines (20) connect power source, the rotating shaft of worm screw (8,11) is fixedly connected with one end of the short connecting rod (7,12) in linkage (II).
Described linkage (II) is comprised long connecting rod (6,13) and is hinged by connecting pin (23) with short connecting rod (7,12), and guarantee can be rotated mutually; The other end of two long connecting rods (6,13) is threaded connection with two claws (21) of cam mechanism (III) respectively.
Described cam mechanism (III) comprises a cam (16), two claws (21) and two ball rollers (5,15); Circular shape is made in described cam (16) bottom, and be convenient to locking, cam (16) is provided with two position sensors (25,26), is used for detecting cam (16) and whether turns to precalculated position; Described ball roller (5,15) is processed with groove (24), and ball roller (5,15) embeds cam (16) by groove (24), and complete reliable connection, two ball rollers (5,15) are rotatably installed on two claws (21) respectively by pin (22).
Described Liang Ge latch mechanism (IV) comprises two hydraulic cylinders (3,19), two lockings baffle plate (2,18) and two cam support framves (4,17), cam support frame (4,17) there is sensor sensing point (29,30), with described two position sensors (25,26) cooperating; Described cam support frame (4,17) is threaded connection and is fixed in locking baffle plate (2,18); Described hydraulic cylinder (3,19) is connected, to ensure to relatively rotate with locking baffle plate (2,18) by connecting pin (27,28); Have in described locking baffle plate (2,18) double wedge can with spud leg (1) stationary rack phase snap close; The end face of described cam support frame (4,17) can compress mutually with described cam (16) bottom arc surface.
Embodiment three: see Fig. 1-Fig. 7, the ingredient of the pile leg locking mechanism in this self-elevating ocean platform jacking system has: two hydraulic cylinders (3,19), two cam support framves (4,17), two ball rollers (5,15), two long connecting rods (6,13), two short connecting rods (7,12), two worm gears (9,10), drive splines (20), two worm screws (8,11), a cam bolster (14), a cam (16), two position sensors (25,26), two lockings baffle plate (2,18).Described cam (16) center is connected on cam bolster (14), and (14) carry clamp structure to cam support axle, and after completing unblock, cam (20) position is fixed by clamp; Fluting in the middle of described ball roller (5,15), thus embed cam (16) profile, complete reliable connection, ball roller (5,15) is connected by connecting pin with claw (21); Long connecting rod (6,13) one end and claw (21) are threaded connection and are weldingly connected and connect, and long connecting rod (6, the 13) other end is connected with pad by connecting pin with short connecting rod (7,12); Described worm screw (8,11) is worm screw (8,11) screwed axial end portion be screwed in the screwed hole of short connecting rod (6,13) with the connection of short connecting rod (6,13).Described hydraulic cylinder (3,19) is coupled together by connecting pin and pad with locking baffle plate (2,18); Described cam support frame (4,17) is connected by bolt, pad with locking baffle plate (2,18), applies certain pretightning force to bolt simultaneously.
Claims (5)
1. the pile leg locking mechanism in a self-elevating ocean platform jacking system, comprise with the spud leg (1) of stationary rack, two worm-and-wheel gears (I), two linkages (II), a cam mechanism (III) and Liang Ge latch mechanisms (IV), it is characterized in that: the input of described two worm-and-wheel gears (I) connects power source, and output connects cam mechanism (III) through two linkages (II) respectively; Described cam mechanism (III) is positioned at outside the tooth top of spud leg (1) stationary rack, and Liang Ge latch mechanism (IV) is arranged on the both sides of spud leg (1) stationary rack respectively; Have in described Liang Ge latch mechanism (IV) two lock baffle plate (2,18) two hydraulic cylinders (3,19) effect under, make two lock baffle plate (2,18) fast close-be adjacent at a slow speed-leave fast spud leg (1) stationary rack; Under the driving of power source, through the transmission of two worm and gears (I) and two linkages (II), cam (16) in cam mechanism (III) swung and compresses/discharge described two lockings baffle plate (2,18), thus realizing the locking/release of spud leg.
2. the pile leg locking mechanism in self-elevating ocean platform jacking system according to claim 1, it is characterized in that: described worm-and-wheel gear (I) comprises worm gear (9,10) and engages with worm screw (8,11), the rotating shaft of worm gear (9,10) has drive splines (20) connect power source, the rotating shaft of worm screw (8,11) is fixedly connected with one end of the short connecting rod (7,12) in linkage (II).
3. the pile leg locking mechanism in self-elevating ocean platform jacking system according to claim 1, it is characterized in that: described linkage (II) is comprised long connecting rod (6,13) and is hinged by connecting pin (23) with short connecting rod (7,12), and guarantee can be rotated mutually; The other end of two long connecting rods (6,13) is threaded connection with two claws (21) of cam mechanism (III) respectively.
4. the pile leg locking mechanism in self-elevating ocean platform jacking system according to claim 1, is characterized in that: described cam mechanism (III) comprises a cam (16), two claws (21) and two ball rollers (5,15); Circular shape is made in described cam (16) bottom, and be convenient to locking, cam (16) is arranged on camshaft (14), and cam (16) side is provided with two position sensors (25,26), is used for detecting cam (16) and whether turns to precalculated position; Described ball roller (5,15) is processed with groove (24), and ball roller (5,15) embeds cam (16) by groove (24), and complete reliable connection, two ball rollers (5,15) are rotatably installed on two claws (21) respectively by pin (22).
5. the pile leg locking mechanism in self-elevating ocean platform jacking system according to claim 4, it is characterized in that: described Liang Ge latch mechanism (IV) comprises two hydraulic cylinders (3,19), two lockings baffle plate (2,18) and two cam support framves (4,17), cam support frame (4,17) there is sensor sensing point (29,30), with described two position sensors (25,26) cooperating; Described cam support frame (4,17) is threaded connection and is fixed in locking baffle plate (2,18); Described hydraulic cylinder (3,19) is connected, to ensure to relatively rotate with locking baffle plate (2,18) by connecting pin (27,28); Have in described locking baffle plate (2,18) double wedge can with spud leg (1) stationary rack phase snap close; The end face of described cam support frame (4,17) can compress mutually with described cam (16) bottom arc surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310287713.6A CN103352454B (en) | 2013-07-10 | 2013-07-10 | Pile leg locking mechanism in self-elevating ocean platform jacking system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310287713.6A CN103352454B (en) | 2013-07-10 | 2013-07-10 | Pile leg locking mechanism in self-elevating ocean platform jacking system |
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| CN103352454A CN103352454A (en) | 2013-10-16 |
| CN103352454B true CN103352454B (en) | 2015-10-07 |
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| CN105002877B (en) * | 2015-06-30 | 2017-03-01 | 浙江海洋学院 | A kind of overturn-preventing system for self-elevating ocean platform |
| CN107381433B (en) * | 2017-07-26 | 2019-05-17 | 武汉船用机械有限责任公司 | A kind of retaining mechanism of rack-and-pinion lifting device |
| CN109667255B (en) * | 2019-02-01 | 2020-11-24 | 太原重工股份有限公司 | Automatic locking and unlocking system and method |
| CN112195901A (en) * | 2020-11-09 | 2021-01-08 | 广东海洋大学 | Self-elevating offshore platform pile leg lifting and locking device |
| CN114180102B (en) * | 2021-12-17 | 2023-08-01 | 清华大学深圳国际研究生院 | Locking device for movable and expandable mechanism on spacecraft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5139366A (en) * | 1991-05-02 | 1992-08-18 | Amfels, Inc. | Offshore jackup rig locking apparatus and method |
| 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 |
| CN201704683U (en) * | 2010-05-21 | 2011-01-12 | 四川宏华石油设备有限公司 | Locking mechanism for lifting of ocean platform |
| CN101956402B (en) * | 2010-08-13 | 2013-04-03 | 内蒙古兴泰建筑有限责任公司 | Rear pouring band with prefabricated concrete edge sealing plate for basement outer shear wall |
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