CN103334416B - Lifting device - Google Patents
Lifting device Download PDFInfo
- Publication number
- CN103334416B CN103334416B CN201310296844.0A CN201310296844A CN103334416B CN 103334416 B CN103334416 B CN 103334416B CN 201310296844 A CN201310296844 A CN 201310296844A CN 103334416 B CN103334416 B CN 103334416B
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- CN
- China
- Prior art keywords
- deceleration device
- output shaft
- axle center
- shaft axle
- gear
- Prior art date
- 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
-
- 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
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
-
- 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
- E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
- E02B17/0872—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks with locking pins engaging holes or cam surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Retarders (AREA)
Abstract
The invention relates to a lifting system of a self elevating platform, in particular to a lifting device. The lifting device comprises a pile leg rack, a lifting gear and a reduction gear, wherein the reduction gear is connected with the pile leg rack through the lifting gear, the tooth pitch of the pile leg rack is m pi, and the reduction gear comprises a first reduction gear body, a second reduction gear body, a third reduction gear body and a fourth reduction gear body. The vertical distance between the axis of the output shaft of the first reduction gear body and the axis of the output shaft of the third reduction gear body can be described as S1=(2N-1)K1m pi/2, wherein N is a natural number, and K1 is between 0.8 to 1. The vertical distance between the axis of the output shaft of the first reduction gear body and the axis of the output shaft of the second reduction gear body can be described as S2=K2m pi/4, wherein K2 is between 0.7 to 1. According to the lifting device, the lifting capacity of the system is fully utilized, and the safety performance of the whole lifting system is improved.
Description
Technical field
The present invention relates to the jacking system of elevating platform, be specifically related to a kind of lifting gear.
Background technology
Elevating platform is a kind of mobile ocean engineering platform of exploiting for marine energy sources and reconnoitring, and its chief component is working platform, the fastening system behind the spud leg of support platform, the jacking system controlling workbench lifting and working platform location.Wherein, jacking system and fastening system are all arranged on a case inside, and fastening system is arranged under jacking system, and they become an entirety by stake case and platform.Often overlap jacking system and comprise four cover lifting gears, lifting gear how layout problem that to be designer need emphasis to consider in stake case, the quality of layout directly affects lift capability and the security performance of jacking system, but be subject to the restriction of the condition such as space, weight in reality, how optimize distribution to become and perplex designer's difficult problem for a long time.
Summary of the invention
For prior art Problems existing, provide a kind of rational in infrastructure compact and can the lifting gear of larger raising system lift capability.
The technical solution used in the present invention is:
A kind of lifting gear, comprise spud leg tooth bar, lifting gear and deceleration device, described deceleration device is connected with described spud leg tooth bar by described lifting gear, the tooth pitch of described spud leg tooth bar is m π, wherein m represents spud leg tooth bar modulus, comprise four described deceleration devices, be respectively the first deceleration device, the second deceleration device, the 3rd deceleration device and the 4th deceleration device; Described first deceleration device and described 3rd deceleration device are arranged on the side of described spud leg tooth bar, and described second deceleration device and described 4th deceleration device are arranged on the opposite side of described spud leg tooth bar; Vertical distance S between described first reduction unit output shaft axle center and described 3rd reduction unit output shaft axle center
1=(2N-1) K
1m pi/2, wherein N is natural number, K
1value 0.8-1; Vertical distance between described second reduction unit output shaft axle center and described 4th reduction unit output shaft axle center equals S
1; Vertical distance S between described first reduction unit output shaft axle center and described second reduction unit output shaft axle center
2=K
2m π/4, wherein K
2value is 0.7-1; Vertical distance between described 3rd reduction unit output shaft axle center and described 4th reduction unit output shaft axle center equals S
2.
As preferred version of the present invention, described deceleration device is in series successively by helical speed reduction gear and planet-gear speed reducer; Described helical speed reduction gear adopts five parallel axes level Four slowing-down structures; Described planet-gear speed reducer adopts double reduction structure and every grade of deceleration all adopts three planetary gears to be distributed in the structure of sun gear surrounding.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the present invention is rational in infrastructure and compact, the lift capability of the larger system that improves, and meets deceleration device heavily quantitative limitation.
2, take full advantage of the lifting ability of system, improve the safety of whole jacking system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is A position of the present invention partial enlarged drawing
Fig. 3 is three-dimensional structure diagram of the present invention
Fig. 4 is the cut-away view of deceleration device
Mark in figure: 1-stake case, 2-motor, 301-first deceleration device, 302-second deceleration device, 303-the 3rd deceleration device, 304-the 4th deceleration device, 4-spud leg tooth bar, 50-planet-gear speed reducer power shaft, 51-primary planet slows down, 52-two-stage planetary reduction, 60-helical speed reduction gear power shaft, 61-one-level helical teeth slows down, 62-secondary helical teeth slows down, 63-tri-grades of helical teeth slow down, and 64-level Four helical teeth slows down, S
1vertical distance between-the first deceleration device 301 output shaft axle center and the 3rd deceleration device 303 output shaft axle center, S
2vertical distance between-the first deceleration device 301 output shaft axle center and the second deceleration device 302 output shaft axle center.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention will be further described.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment 1
Elevating platform is a kind of mobile ocean engineering platform of exploiting for marine energy sources and reconnoitring, and its chief component is working platform, the spud leg of support platform, the jacking system of control workbench lifting.Wherein jacking system is primarily of compositions such as motor, deceleration device, main lifting gear shaft assemblies.The three-dimensional structure diagram of a kind of lifting gear as shown in Figure 3, spud leg tooth bar 4 and lifting gear are arranged on the inside of a case 1, first deceleration device 301, second deceleration device 302, the 3rd deceleration device 303 and the 4th deceleration device 304 are all arranged on the side of a case 1, the tooth pitch of spud leg tooth bar 4 is m π, and wherein m represents spud leg tooth bar modulus.Four motors 2 connect the power shaft of the first deceleration device 301, second deceleration device 302, the 3rd deceleration device 303 and the 4th deceleration device 304 respectively, slow down after increasing is turned round through deceleration device and be elevated required moment of torsion by lifting gear output spud leg tooth bar 4, spud leg tooth bar 4 connects spud leg, and namely spud leg lifting drives lifting platform.The internal construction of the first deceleration device 301, second deceleration device 302, the 3rd deceleration device 303 and the 4th deceleration device 304 as shown in Figure 4, be composed in series successively by parallel axes helical tooth speed reducer and planet-gear speed reducer, described helical speed reduction gear is arranged on speed end, and described planet-gear speed reducer is arranged on low speed end.Motor 2 is connected with helical speed reduction gear power shaft 60, export moment of torsion to planet-gear speed reducer power shaft 50 through one-level helical teeth deceleration 61, secondary helical teeth deceleration 62, three grades of helical teeth decelerations 63 and level Four helical teeth deceleration 64, planet-gear speed reducer exports spud leg tooth bar 4 through primary planet deceleration 51 and two-stage planetary reduction 52 and is elevated required moment of torsion.Described helical speed reduction gear adopts five parallel axes level Four slowing-down structures, after four deceleration increasings are turned round, connect described planet-gear speed reducer power shaft 50 by output shaft.Described planet-gear speed reducer adopts double reduction structure and every grade of deceleration all adopts three planetary gears to be distributed in the structure of sun gear surrounding.The overall U-shaped of described helical speed reduction gear, described planet-gear speed reducer and motor 2 three composition is arranged on the side of a case 1.
The tooth pitch of spud leg tooth bar is m π, composition graphs 1 and Fig. 2, and the first deceleration device 301 and the 3rd deceleration device 303 are arranged on the side of spud leg tooth bar 4, and the second deceleration device 302 and the 4th deceleration device 304 are arranged on the opposite side of spud leg tooth bar 4; Vertical distance S between first deceleration device 301 output shaft axle center and the 3rd deceleration device 303 output shaft axle center
1=(2N-1) K
1m pi/2, wherein N is natural number, K
1value 0.8-1; Vertical distance between second deceleration device 302 output shaft axle center and the 4th deceleration device 304 output shaft axle center equals S
1; Vertical distance S between first deceleration device 301 output shaft axle center and the second deceleration device 302 output shaft axle center
2=K
2m π/4, wherein K
2value is 0.7-1; Vertical distance between 3rd deceleration device 303 output shaft axle center and the 4th deceleration device 304 output shaft axle center equals S
2.Determine S
2prerequisite be ensure mutually can not interfere between deceleration device.Upper first paragraph was mentioned, first deceleration device 301, second deceleration device 302, the 3rd deceleration device 303 and the 4th deceleration device 304 are all be composed in series successively by parallel-shaft bevel wheel reducer and planet-gear speed reducer, described helical speed reduction gear is arranged on speed end, and described planet-gear speed reducer is arranged on low speed end.So the output shaft of the first deceleration device 301, second deceleration device 302, the 3rd deceleration device 303 and the 4th deceleration device 304 is exactly the output shaft of described planet-gear speed reducer in fact.Desirable deceleration device layout type is, at synchronization, the meshing point of four deceleration device rack-and-pinion staggers 1/4th tooth pitches mutually, avoids the unfavorable situation of multipair rack-and-pinion raker tooth rooted tooth top engagement.But consider a case height to the impact of platform weight, need to limit the value of S2, therefore K is multiplied by it
2, K
2span rule of thumb and experiment obtain, concrete benefit is exactly the lifting ability taking full advantage of system, improves the safety of whole jacking system.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a lifting gear, comprise spud leg tooth bar, lifting gear and deceleration device, described deceleration device is connected with described spud leg tooth bar by described lifting gear, the tooth pitch of described spud leg tooth bar is m π, wherein m represents spud leg tooth bar modulus, it is characterized in that, comprise four described deceleration devices, be respectively the first deceleration device, the second deceleration device, the 3rd deceleration device and the 4th deceleration device; Described first deceleration device and described 3rd deceleration device are arranged on the side of described spud leg tooth bar, and described second deceleration device and described 4th deceleration device are arranged on the opposite side of described spud leg tooth bar; Vertical distance S between described first reduction unit output shaft axle center and described 3rd reduction unit output shaft axle center
1=(2N-1) K
1m pi/2, wherein N is natural number, K
1value 0.8-1; Vertical distance between described second reduction unit output shaft axle center and described 4th reduction unit output shaft axle center equals S
1; Vertical distance S between described first reduction unit output shaft axle center and described second reduction unit output shaft axle center
2=K
2m π/4, wherein K
2value is 0.7-1; Vertical distance between described 3rd reduction unit output shaft axle center and described 4th reduction unit output shaft axle center equals S
2.
2. lifting gear according to claim 1, is characterized in that, described deceleration device is in series successively by helical speed reduction gear and planet-gear speed reducer; Described helical speed reduction gear adopts five parallel axes level Four slowing-down structures; Described planet-gear speed reducer adopts double reduction structure and every grade of deceleration all adopts three planetary gears to be distributed in the structure of sun gear surrounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310296844.0A CN103334416B (en) | 2013-07-16 | 2013-07-16 | Lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310296844.0A CN103334416B (en) | 2013-07-16 | 2013-07-16 | Lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103334416A CN103334416A (en) | 2013-10-02 |
| CN103334416B true CN103334416B (en) | 2015-01-28 |
Family
ID=49242615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310296844.0A Active CN103334416B (en) | 2013-07-16 | 2013-07-16 | Lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103334416B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821124B (en) * | 2014-01-21 | 2016-02-17 | 武汉船用机械有限责任公司 | For the installing rack of pinion and-rack platform hoist system |
| CN106064258B (en) * | 2016-07-05 | 2018-04-17 | 武汉船用机械有限责任公司 | A kind of rack cutting method and gear rack elevating device |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6235038U (en) * | 1985-08-13 | 1987-03-02 | ||
| CN2046565U (en) * | 1988-12-20 | 1989-10-25 | 陕西工学院 | Few number of teeth cylindrical gear speed reducer |
| US6231269B1 (en) * | 1999-03-05 | 2001-05-15 | Friede & Goldman, Ltd. | Apparatus for releasing a rack chock of a jack-up rig |
| CN101328953B (en) * | 2004-01-30 | 2011-03-30 | 纳博特斯克株式会社 | Eccentric oscillating-type planetary gear device |
| CN201195838Y (en) * | 2008-05-19 | 2009-02-18 | 郑州富格海洋工程装备有限公司 | Self-lifting ocean drill platform lifting and lowering mechanism |
| CN102628264A (en) * | 2012-04-19 | 2012-08-08 | 吴平平 | Elevating device for self-elevating drilling platform |
| CN103015388B (en) * | 2013-01-21 | 2015-01-14 | 上海振华重工(集团)股份有限公司 | Self-elevating platform lifting device allowing for dynamically detection of load |
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2013
- 2013-07-16 CN CN201310296844.0A patent/CN103334416B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103334416A (en) | 2013-10-02 |
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