CN106013028B - A kind of lifting of ocean platform device - Google Patents
A kind of lifting of ocean platform device Download PDFInfo
- Publication number
- CN106013028B CN106013028B CN201610334399.6A CN201610334399A CN106013028B CN 106013028 B CN106013028 B CN 106013028B CN 201610334399 A CN201610334399 A CN 201610334399A CN 106013028 B CN106013028 B CN 106013028B
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- CN
- China
- Prior art keywords
- ring beam
- string pipe
- spud leg
- rack
- bolt
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
Abstract
The invention discloses a kind of lifting of ocean platform devices, belong to marine engineering equipment field.The device includes wedge bracket, determine ring beam, rotating ring beam, power unit and string pipe, wedge bracket is fixedly connected with ring beam is determined, determine ring beam and rotating ring beam axially to set gradually from top to bottom along spud leg, power unit includes force piece and gear, force piece, which is fixed at, to be determined on ring beam, and force piece output end rotatable engagement has gear, one end of string pipe to be connected on rotating ring beam, the other end of rack, which passes through, determines ring beam, and the rack being meshed with gear is provided on string pipe.The embodiment of the present invention on rotating ring beam by installing the string pipe with rack, simultaneously on determining ring beam install wedge bracket and with the matched power unit of rack, rack in string pipe is meshed with the gear in power unit, during lifting of ocean platform, rotating ring beam is alternately moved by the engagement of rack and pinion along spud leg with ring beam is determined, therefore, ocean platform fast lifting can be made, to improve operating efficiency.
Description
Technical field
The present invention relates to marine engineering equipment field, more particularly to a kind of lifting of ocean platform device.
Background technology
Bolt lifting gear is widely used in ocean platform, can coordinate the spud leg band in self-elevating ocean platform
Dynamic hull is moved up and down along spud leg.
Existing bolt lifting gear includes：Wedge bracket, the first bolt rotating ring beam, determined ring beam, be arranged on determining ring beam,
The second bolt and connection that are arranged on rotating ring beam determine the lift cylinder of ring beam and rotating ring beam, and wedge bracket is fixed with ocean platform to be connected
It connects, wedge bracket, rotating ring beam and determines ring beam and be sleeved on spud leg, the first bolt and the second bolt can extend into the pin hole on spud leg
It is interior, it is interleaved alternately in the pin hole on spud leg by the first bolt and the second bolt, and the flexible of lift cylinder is coordinated to realize
The lifting of ocean platform.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems：Pass through lift cylinder
It is flexible realize the lifting of ocean platform, although the good lifting speed of stability is slow, seriously affect operating efficiency, therefore, be
Make the steady lifting of ocean platform, safety and meet under the premise of technology requires, the lifting speed for promoting ocean platform has
Important meaning.
Invention content
For the problems of the prior art, an embodiment of the present invention provides a kind of lifting of ocean platform devices.The technology
Scheme is as follows：
A kind of lifting of ocean platform device, described device include movable set on spud leg and for connecting ocean platform
Wedge bracket, movable set determine ring beam and rotating ring beam on the spud leg and along what the spud leg was axially set gradually from top to bottom,
The wedge bracket is determined ring beam and is fixedly connected with described, axially spaced on the spud leg to be provided with multiple pin holes, described to determine ring
It is provided with the first bolt on beam and is inserted into the first plugging pin oil cylinder of the corresponding pin hole for controlling first bolt, it is described
It is provided with the second bolt on rotating ring beam and is inserted into the second plugging pin oil cylinder of the corresponding pin hole for controlling second bolt,
Described device further includes power unit chord pipe, and the power unit includes force piece and gear, the force piece fixed setting
Determine on ring beam described, the force piece output end rotatable engagement has the gear, the string pipe to be parallel to the axis of the spud leg
To setting, one end of the string pipe is connected on the rotating ring beam, and the other end of the string pipe determines ring beam, the string across described
It being provided on pipe along the axial arranged rack of the string pipe, the rack is meshed with the gear,
The more string pipes are provided with two row in the equiangularly spaced setting of spud leg circumferencial direction, the every string pipe
Rack, the two row rack arranged with the string pipe axial centre axial symmetry,
It is provided with the multiple row power unit corresponding with string pipe described in every along being parallel on the spud leg axial direction,
The gear of power unit described in each column is meshed with the rack on the corresponding string pipe, and power unit described in each column corresponds to driving
A piece string pipe,
It is symmetrically arranged with the two row power unit positioned at string pipe axial centre axis both sides described in every, power described in each column
The gear of unit is meshed with corresponding row rack, and every two row power unit corresponds to a piece string pipe of driving, each column
The quantity of the power unit be consistent and each column described in the quantity of power unit be at least 2.
Preferably, the string pipe and the rotating ring beam are hinged by axis pin, and the axis pin is perpendicular to the string pipe and described
Plane where gear.
Further, described to determine to be provided with multiple first bolts on ring beam, and multiple first bolts are around described
The equiangularly spaced setting of spud leg circumferencial direction；Multiple second bolts, and multiple described second are provided on the rotating ring beam
Bolt is around the equiangularly spaced setting of spud leg circumferencial direction.
Further, first bolt and second bolt be arranged in a one-to-one correspondence, and be correspondingly arranged described first
Line between bolt and second bolt is parallel with the axial direction of the spud leg, between the string pipe replaces with second bolt
Every setting on the rotating ring beam.
Further, the wedge bracket includes top plate and coaming plate, the top board undersurface edge and the ocean platform top surface
Between connected by the coaming plate, the roof center portion is passed through by the spud leg and the string pipe, the top board undersurface and institute
More connecting pole connections, the more connecting poles between determining ring beam are stated around spud leg circumferencial direction interval to be arranged.
Further, the position for determining to correspond to first bolt on ring beam is provided with the first socket, the rotating ring
The position that second bolt is corresponded on beam is provided with the second socket.
Further, the position for determining to correspond to first plugging pin oil cylinder on ring beam is provided with the first cylinder rack, described
The position that second plugging pin oil cylinder is corresponded on rotating ring beam is provided with the second cylinder rack.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：There is rack by being installed on rotating ring beam
String pipe, while wedge bracket of the installation for being connect with ocean platform and being used for and the matched power list of rack on determining ring beam
Member, the rack in string pipe is meshed with the gear in power unit, during lifting of ocean platform, rotating ring beam and determines ring beam
It is alternately moved along spud leg by the engagement of rack and pinion, therefore, ocean platform fast lifting can be made, to improve operating efficiency.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of lifting of ocean platform device provided in an embodiment of the present invention；
Fig. 2 is a kind of vertical view of lifting of ocean platform device provided in an embodiment of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
An embodiment of the present invention provides a kind of lifting of ocean platform devices.With reference to figure 1 and Fig. 2, lifting of ocean platform dress
It sets including movable set on spud leg 16 and for connecting the wedge bracket 1 of ocean platform 9, movable set on spud leg 16 and along stake
Leg 16 is axial set gradually under upper determine ring beam 5 and rotating ring beam 7, wedge bracket 1 is fixedly connected with ring beam 5 is determined, on spud leg 16
It is axially spaced to be provided with multiple pin holes 20, determine to be provided with the first bolt 14 on ring beam 5 and be inserted for controlling the first bolt 14
Enter the first plugging pin oil cylinder 4 of corresponding pin hole 20, the second bolt 10 is provided on rotating ring beam 7 and is inserted for controlling the second bolt 10
Enter the second plugging pin oil cylinder 8 of corresponding pin hole 20, which further includes power unit chord pipe 6, and power unit includes force piece
18 and gear 19, force piece 18, which is fixed at, to be determined on ring beam 5, and 18 output end rotatable engagement of force piece has gear 19, string pipe 6 flat
Row is connected in the axial direction setting of spud leg 16, one end of string pipe 6 on rotating ring beam 7, and the other end of string pipe 6, which passes through, determines ring beam 5, string
It is provided on pipe 6 along the axial arranged rack 6.1 of string pipe 6, rack 6.1 is meshed with gear 19.
The embodiment of the present invention is pacified by installing the string pipe 6 with rack 6.1 on rotating ring beam 7 on determining ring beam 5
It fills wedge bracket 1 for connect with ocean platform 9 and is used for 6.1 matched power unit of rack, the rack in string pipe 6
6.1 are meshed with the gear 19 in power unit, during ocean platform 9 lifts, rotating ring beam 7 and determine ring beam 5 and pass through tooth
Engaging for item 6.1 and gear 19 is alternately moved along spud leg 16, therefore, can make 9 fast lifting of ocean platform, avoid due to the use of
Lift cylinder and the problem for causing 9 lifting speed of ocean platform slow, to improve operating efficiency.
In conjunction with Fig. 1 and Fig. 2, the device of the embodiment of the present invention may include more string pipes 6, and more string pipes 6 are justified around spud leg 16
The equiangularly spaced setting of circumferential direction；Correspondingly, power unit is also required to be provided with multiple, and is corresponded with string pipe 6.Pass through one
The one power unit chord pipe 6 being correspondingly arranged, can increase the power of lifting gear, simultaneously because more string pipes 6 are around spud leg 16
The equiangularly spaced setting of circumferencial direction, therefore active force of multiple power units to string pipe 6 can be balanced, make to determine ring beam 5 and moved
The lifting of ring beam 7 is more steady, and avoids determining ring beam 5 and rotating ring beam 7 tilts in lifting process.
In conjunction with Fig. 1, the device of the embodiment of the present invention along be parallel on 16 axial direction of spud leg can be provided with multiple row with it is every
6 corresponding power unit of root string pipe, the gear 19 of each column power unit are meshed with the rack 6.1 on corresponding string pipe 6, each column
Power unit corresponds to a piece string pipe 6 of driving.Since each column power unit includes multiple force pieces 18, lifting can be further increased
The power of device makes the lifting speed of ocean platform 9 faster.
In conjunction with Fig. 1 and Fig. 2, the embodiment of the present invention can be provided with two row racks 6.1, two row racks on every string pipe 6
6.1 are arranged with 6 axial centre axial symmetry of string pipe；Correspondingly, two row are symmetrically arranged with positioned at every 6 axial centre axis both sides of string pipe
Power unit, the gear 19 of each column power unit are meshed with corresponding row rack 6.1, and every two row power unit, which corresponds to, to be driven
Move a string pipe 6.Since the rack 6.1 of every 6 both sides of string pipe is all matched with power unit, 6 both sides of string pipe can be made
Stress more balance, avoid string pipe 6 from being deformed due to force unbalance.
It is envisioned that the quantity of each column power unit is consistent, further to balance the stress of 6 both sides of string pipe,
String pipe 6 is avoided to be deformed due to both sides force unbalance.
When specific implementation, the force piece 18 in power unit can be fixedly connected by the cooperation of bolt 3 and mounting bracket 22
On determining ring beam 5.
The force piece 18 of the embodiment of the present invention can be the actuating unit that the output ends such as stepper motor rotate.
In conjunction with Fig. 1, string pipe 6 and the rotating ring beam 7 of the embodiment of the present invention can be hinged by axis pin 12, axis pin 12 perpendicular to
String pipe 6 and rotating ring beam 7 can hingedly be made string pipe 6 small change occurring by the plane where string pipe 6 and gear 19 by axis pin 12
It can be rotated around axis pin 12 when shape, to reduce the stress that string pipe 6 is generated due to deformation.
In conjunction with Fig. 1 and Fig. 2, the embodiment of the present invention determines to be provided with multiple first bolts 14, and multiple on ring beam 5
One bolt 14 is around the equiangularly spaced setting of 16 circumferencial direction of spud leg；Multiple second bolts 10 are also equipped on rotating ring beam 7, and multiple
Second bolt 10 is around the equiangularly spaced setting of 16 circumferencial direction of spud leg.Divided by multiple first bolts 14 and multiple second bolts 10
Ring beam 5 will not determined and rotating ring beam 7 is arranged on spud leg 16, can be reduced on each first bolt 14 and each second bolt 10
Bearing capacity, simultaneously because multiple first bolts 14 and multiple second bolts 10 be around 16 equiangularly spaced setting of spud leg, therefore
The bearing capacity on multiple first bolts 14 and multiple second bolts 10 can be balanced, makes to determine ring beam 5 and rotating ring beam 7 is more stable.
In conjunction with Fig. 1, the first bolt 14 and the second bolt 10 of the embodiment of the present invention are arranged in a one-to-one correspondence, and be correspondingly arranged
Line between first bolt 14 and the second bolt 10 is parallel with the axial direction of spud leg 16, between string pipe 6 replaces with the second bolt 10
Every being arranged on rotating ring beam 7, so as to determine ring beam 5 and rotating ring beam 7 is more stable when moving.
In addition, the position for determining corresponding first bolt 14 on ring beam 5 of the embodiment of the present invention is provided with the first socket 15, move
The position of corresponding second bolt 10 is provided with the second socket 11 on ring beam 7.Depending on corresponding first plugging pin oil cylinder 4 on ring beam 5
Position is provided with the first cylinder rack 17, and the position that the second plugging pin oil cylinder 8 is corresponded on rotating ring beam 7 is provided with the second cylinder rack 21.
In conjunction with Fig. 1, the wedge bracket 1 of the embodiment of the present invention includes top plate 1.1 and coaming plate 1.2,1.1 bottom edge of top plate and sea
Foreign platform is connected between 9 top surface by coaming plate 1.2, and 1.1 central part of top plate is provided with the through-hole passed through by spud leg 16 and string pipe 6,
In this way, top plate 1.1, coaming plate 1.2 and ocean platform 9 just define an operating space for there was only upper opening, prevent because of the external world
Factor (such as seawater) has an impact power unit and string pipe 6, and service life is long.In addition, 1.1 bottom surface of top plate and determining ring beam 5
Between more connecting poles 2 connect, more connecting poles 2 are arranged around 16 circumferencial direction interval of spud leg, specifically：1.1 bottom surface pair of top plate
It should be welded with and be plugged in the bolumn cap, determine inside ring beam 5 by fixed with the matched bolumn cap in 2 top of connecting pole, 2 top of connecting pole
The position correspondence of pin 13 is fixedly connected with 2 bottom end of connecting pole.
The course of work for the device that the embodiment of the present invention described briefly below is provided：
In uphill process, the second plugging pin oil cylinder 8 acts on the second bolt 10 and is inserted into the pin hole 20 of spud leg 16, and first
Plugging pin oil cylinder 4 acts on the first bolt 14 and is extracted from the pin hole 20 of spud leg 16, and control power unit is started to work, and gear 19 is just
To rotation, gear 19 is climb along the rack 6.1 on string pipe 6 so that is determined ring beam 5 and is moved up along the direction of spud leg 16, determines ring beam 5
The distance between rotating ring beam 7 is elongated, to drive wedge bracket 1 to be moved up along spud leg 16 so that ocean platform 9 is to moving up
It is dynamic；When determining ring beam 5 and being moved up in place along spud leg 16, control power unit is stopped, while the first plugging pin oil cylinder 4 acts on
First bolt 14 is inserted into the pin hole 20 of spud leg 16, and the second plugging pin oil cylinder 8 acts on pin hole of second bolt 10 from spud leg 16
It is extracted in 20, then controls power unit start-up operation, gear 19 rotates backward, and 19 position of gear is motionless, the rotation band of gear 19
The rack 6.1 of dynamic string pipe 6 moves up, so that rotating ring beam 7 is moved up along the direction of spud leg 16, determines between ring beam 5 and rotating ring beam 7
Distance shortens, and so recycles, and realizes the vertical motion of ocean platform 9, the lowering action of ocean platform 9 then with the mistake of vertical motion
Journey is opposite.
The embodiment of the present invention is lifted with rack-and-pinion, easy to control, is safeguarded simply, can be reduced cost.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of lifting of ocean platform device, described device includes movable set on spud leg (16) and for connecting ocean platform
(9) wedge bracket (1), movable set is axially set gradually from top to bottom on the spud leg (16) and along the spud leg (16)
Determine ring beam (5) and rotating ring beam (7), the wedge bracket (1) is determined ring beam (5) and be fixedly connected with described, spud leg (16) the upper edge axis
It is described to determine to be provided with the first bolt (14) on ring beam (5) and for controlling described to being arranged at intervals with multiple pin holes (20)
One bolt (14) is inserted into the first plugging pin oil cylinder (4) of the corresponding pin hole (20), and being provided with second on the rotating ring beam (7) inserts
Pin (10) and the second plugging pin oil cylinder (8) that the corresponding pin hole (20) is inserted into for controlling second bolt (10), it is special
Sign is：Described device further includes power unit and Duo Gen strings pipe (6), and the power unit includes force piece (18) and gear
(19), the force piece (18) be fixed at it is described determine on ring beam (5), force piece (18) the output end rotatable engagement is
Gear (19) is stated, the string pipe (6) is parallel to the axial setting of the spud leg (16), and one end of the string pipe (6) is connected to institute
It states on rotating ring beam (7), the other end of the string pipe (6) determines ring beam (5) across described, is provided with along described on the string pipe (6)
The axial arranged rack (6.1) of string pipe (6), the rack (6.1) are meshed with the gear (19),
The more string pipes (6) are arranged in the equiangularly spaced setting of the spud leg (16) circumferencial direction, the every string pipe (6)
There are two row racks (6.1), the two row rack (6.1) to be arranged with string pipe (6) the axial centre axial symmetry,
It is provided with the multiple row power list corresponding with string pipe (6) described in every along being parallel on the spud leg (16) axial direction
The gear (19) of member, power unit described in each column is meshed with the rack (6.1) on the corresponding string pipe (6), described in each column
Power unit corresponds to a piece string pipe (6) of driving,
It is symmetrically arranged with the two row power unit positioned at string pipe (6) axial centre axis both sides described in every, power described in each column
The gear (19) of unit is meshed with corresponding row rack (6.1), and every two row power unit corresponds to described in driving one
The quantity of string pipe (6), power unit described in each column be consistent and each column described in the quantity of power unit be at least 2.
2. lifting of ocean platform device according to claim 1, it is characterised in that：The string pipe (6) and the rotating ring beam
(7) hinged by axis pin (12), the axis pin (12) is perpendicular to the plane where the string pipe (6) and the gear (19).
3. lifting of ocean platform device according to claim 1, it is characterised in that：It is described determine to be provided on ring beam (5) it is more
A first bolt (14), and multiple first bolts (14) set around the spud leg (16) circumferencial direction is equiangularly spaced
It sets；Multiple second bolts (10) are provided on the rotating ring beam (7), and multiple second bolts (10) are around the spud leg
(16) the equiangularly spaced setting of circumferencial direction.
4. lifting of ocean platform device according to claim 3, it is characterised in that：First bolt (14) and described
Two bolts (10) are arranged in a one-to-one correspondence, and the company between first bolt (14) being correspondingly arranged and second bolt (10)
Line is parallel with the axial direction of the spud leg (16), and the string pipe (6) is arranged with the second bolt (10) alternate intervals described dynamic
On ring beam (7).
5. lifting of ocean platform device according to claim 1, it is characterised in that：The wedge bracket (1) includes top plate
(1.1) and coaming plate (1.2), pass through the coaming plate between top plate (1.1) bottom edge and the ocean platform (9) top surface
(1.2) it connects, top plate (1.1) central part is passed through by the spud leg (16) and the string pipe (6), top plate (1.1) bottom
Face with it is described determine ring beam (5) between more connecting poles (2) connect, the more connecting poles (2) are around the spud leg (16) circumference side
It is arranged to interval.
6. according to Claims 1 to 5 any one of them device, it is characterised in that：It is described to determine to correspond to described first on ring beam (5)
The position of bolt (14) is provided with the first socket (15), and the position of second bolt (10) is corresponded on the rotating ring beam (7)
It is provided with the second socket (11).
7. according to Claims 1 to 5 any one of them device, it is characterised in that：It is described to determine to correspond to described first on ring beam (5)
The position of plugging pin oil cylinder (4) is provided with the first cylinder rack (17), and second plugging pin oil cylinder (8) is corresponded on the rotating ring beam (7)
Position be provided with the second cylinder rack (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334399.6A CN106013028B (en) | 2016-05-19 | 2016-05-19 | A kind of lifting of ocean platform device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334399.6A CN106013028B (en) | 2016-05-19 | 2016-05-19 | A kind of lifting of ocean platform device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106013028A CN106013028A (en) | 2016-10-12 |
| CN106013028B true CN106013028B (en) | 2018-08-21 |
Family
ID=57095003
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610334399.6A Active CN106013028B (en) | 2016-05-19 | 2016-05-19 | A kind of lifting of ocean platform device |
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| CN (1) | CN106013028B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638528B (en) * | 2016-12-26 | 2019-05-10 | 浙江华蕴海洋工程技术服务有限公司 | A kind of fixed pile chamber of offshore wind power platform and the mounting structure of lifting device |
| CN106638529B (en) * | 2016-12-26 | 2019-11-08 | 广东精铟海洋工程股份有限公司 | A kind of fixed pile chamber of offshore wind power platform |
| CN107165146B (en) * | 2017-04-06 | 2019-07-05 | 武汉船用机械有限责任公司 | A kind of hoistable platform |
| CN107354930B (en) * | 2017-06-21 | 2019-08-23 | 武汉船用机械有限责任公司 | A kind of lifting device |
| CN107893410B (en) * | 2017-09-27 | 2020-09-15 | 武汉船用机械有限责任公司 | Ocean platform lifting device |
| CN108104090A (en) * | 2017-11-03 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of hydraulic bolt lifting gear |
| CN108643156B (en) * | 2018-06-22 | 2024-02-09 | 广东海洋大学 | Round pile leg gear rack lifting platform |
| CN110902583A (en) * | 2018-09-17 | 2020-03-24 | 中集海洋工程有限公司 | Ocean platform and crane base thereof |
| CN109371949A (en) * | 2018-10-18 | 2019-02-22 | 广东精铟海洋工程股份有限公司 | A kind of rack-and-pinion bolt jacking system and its elevating method |
| CN109736281A (en) * | 2019-01-04 | 2019-05-10 | 武汉船用机械有限责任公司 | Gear rack lifting system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200978413Y (en) * | 2006-12-05 | 2007-11-21 | 中国石化集团胜利石油管理局钻井工艺研究院 | Repeatedly-usable lifting gear |
| NL2005785C2 (en) * | 2010-11-30 | 2012-05-31 | Ihc Holland Ie Bv | Jacking system. |
| CN203924027U (en) * | 2014-01-21 | 2014-11-05 | 武汉船用机械有限责任公司 | For the installing rack of pinion and-rack lifting platform system |
| CN104652395B (en) * | 2014-12-27 | 2016-10-05 | 武汉船用机械有限责任公司 | A kind of latch jacking system |
| CN105465306B (en) * | 2015-12-14 | 2018-03-20 | 武汉船用机械有限责任公司 | A kind of rack-and-pinion elevating mechanism |
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2016
- 2016-05-19 CN CN201610334399.6A patent/CN106013028B/en active Active
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