CN103334416A - Lifting device - Google Patents

Lifting device Download PDF

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Publication number
CN103334416A
CN103334416A CN2013102968440A CN201310296844A CN103334416A CN 103334416 A CN103334416 A CN 103334416A CN 2013102968440 A CN2013102968440 A CN 2013102968440A CN 201310296844 A CN201310296844 A CN 201310296844A CN 103334416 A CN103334416 A CN 103334416A
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CN
China
Prior art keywords
deceleration device
output shaft
axle center
shaft axle
gear
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Granted
Application number
CN2013102968440A
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Chinese (zh)
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CN103334416B (en
Inventor
吴勇
雍军
袁霄
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Sichuan Honghua Petroleum Equipment Co Ltd
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Sichuan Honghua Petroleum Equipment Co Ltd
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Priority to CN201310296844.0A priority Critical patent/CN103334416B/en
Publication of CN103334416A publication Critical patent/CN103334416A/en
Application granted granted Critical
Publication of CN103334416B publication Critical patent/CN103334416B/en
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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
    • E02B17/02—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

A kind of lifting gear
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 for marine energy sources exploitation and prospecting, and its chief component is working platform, the jacking system of the spud leg of support platform, control workbench lifting and the fastening system behind the working platform location.Wherein, jacking system and fastening system all are installed in a case inside, and fastening system is arranged under the jacking system, and they become an integral body by stake case and platform.Every cover jacking system comprises the quadruplet lifting gear, lifting gear layout problem that to be the designer need emphasis to consider how in the stake case, the quality of layout directly influences lift capability and the security performance of jacking system, but be subjected to the restriction of conditions such as space, weight in the reality, how optimize distribution to become and perplex designer's difficult problem for a long time.
Summary of the invention
At the problem that prior art exists, provide a kind of compactness rational in infrastructure and can be bigger the lifting gear of 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, comprise four described deceleration devices, be respectively first deceleration device, second deceleration device, the 3rd deceleration device and the 4th deceleration device; Described first deceleration device and described the 3rd deceleration device are arranged on a side of described spud leg tooth bar, and described second deceleration device and described the 4th deceleration device are arranged on the opposite side of described spud leg tooth bar; Vertical distance S between the described first reduction unit output shaft axle center and described the 3rd reduction unit output shaft axle center 1=(2N-1) K 1The m pi/2, wherein N is natural number, K 1Value 0.8-1; Vertical distance between the described second reduction unit output shaft axle center and described the 4th reduction unit output shaft axle center equals S 1Vertical distance S between the described first reduction unit output shaft axle center and the described second reduction unit output shaft axle center 2=K 2M π/4, wherein K 2Value is 0.7-1; Vertical distance between described the 3rd reduction unit output shaft axle center and described the 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 to adopt three planetary gears to be distributed in sun gear structure all around.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, the present invention is rational in infrastructure and compact, bigger lifting the lift capability of system, and satisfy restriction to deceleration device weight.
2, taken full advantage of the lifting ability of system, the safety that has improved whole jacking system.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is A of the present invention position 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 among the 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-one-level planetary reduction gear, the 52-secondary planet is slowed down, 60-helical speed reduction gear power shaft, and 61-one-level helical teeth slows down, 62-secondary helical teeth slows down, three grades of helical teeth of 63-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 second deceleration device, the 302 output shaft axle center.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, 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 explaining the present invention, and be not used in restriction the present invention.
Embodiment 1
Elevating platform is a kind of mobile ocean engineering platform for marine energy sources exploitation and prospecting, and its chief component is working platform, the jacking system of the spud leg of support platform, control workbench lifting.Wherein jacking system mainly is made up of motor, deceleration device, main lifting gear shaft assembly etc.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 all are arranged on the side of a case 1, and the tooth pitch of spud leg tooth bar 4 is m π.Four motors 2 connect the power shaft of first deceleration device 301, second deceleration device 302, the 3rd deceleration device 303 and the 4th deceleration device 304 respectively, the process deceleration device slows down to increase and turns round the back by the required moment of torsion of lifting gear output spud leg tooth bar 4 liftings, spud leg tooth bar 4 connects spud leg, and the spud leg lifting namely drives lifting platform.The internal construction of 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 teeth reductor and planet-gear speed reducer, described helical speed reduction gear is arranged on speed end, and described planet-gear speed reducer is arranged on the low speed end.Motor 2 is connected with helical speed reduction gear power shaft 60, through the one-level helical teeth slow down 61, the secondary helical teeth slow down 62, three grades of helical teeth slow down 63 and the level Four helical teeth slow down and 64 export moment of torsion to planet-gear speed reducer power shaft 50, planet-gear speed reducer is through one-level planetary reduction gear 51 and the secondary planet required moment of torsion of 52 output spud leg tooth bar 4 liftings that slows down.Described helical speed reduction gear adopts five parallel axes level Four slowing-down structures, and slowing down to increase to turn round through four times then connects 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 to adopt three planetary gears to be distributed in sun gear structure all around.The overall U-shaped that described helical speed reduction gear, described planet-gear speed reducer and motor 2 threes form is arranged on the side of a case 1.
The tooth pitch of spud leg tooth bar is m π, and in conjunction with Fig. 1 and Fig. 2, first deceleration device 301 and the 3rd deceleration device 303 are arranged on a side of spud leg tooth bar 4, and 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 1The m 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 1Vertical distance S between first deceleration device, 301 output shaft axle center and second deceleration device, the 302 output shaft axle center 2=K 2M π/4, wherein K 2Value is 0.7-1; Vertical distance between the 3rd deceleration device 303 output shaft axle center and the 4th deceleration device 304 output shaft axle center equals S 2Determine S 2Prerequisite be to guarantee can not interfere mutually between the deceleration device.Mentioned for last first section, first deceleration device 301, second deceleration device 302, the 3rd deceleration device 303 and the 4th deceleration device 304 all are to be composed in series successively by parallel axes helical speed reduction gear and planet-gear speed reducer, described helical speed reduction gear is arranged on speed end, and described planet-gear speed reducer is arranged on the low speed end.So the output shaft of 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 1/4th tooth pitches that stagger are mutually avoided many unfavorable situations to the engagement of rack-and-pinion raker tooth rooted tooth top.But take all factors into consideration a case height to the influence of platform weight, need the value of S2 be limited, so it be multiply by K 2, K 2Span rule of thumb and experiment obtain, concrete benefit is exactly the lifting ability that has taken full advantage of system, the safety that has improved whole jacking system.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (2)

1. 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, it is characterized in that, comprise four described deceleration devices, be respectively first deceleration device, second deceleration device, the 3rd deceleration device and the 4th deceleration device; Described first deceleration device and described the 3rd deceleration device are arranged on a side of described spud leg tooth bar, and described second deceleration device and described the 4th deceleration device are arranged on the opposite side of described spud leg tooth bar; Vertical distance S between the described first reduction unit output shaft axle center and described the 3rd reduction unit output shaft axle center 1=(2N-1) K 1The m pi/2, wherein N is natural number, K 1Value 0.8-1; Vertical distance between the described second reduction unit output shaft axle center and described the 4th reduction unit output shaft axle center equals S 1Vertical distance S between the described first reduction unit output shaft axle center and the described second reduction unit output shaft axle center 2=K 2M π/4, wherein K 2Value is 0.7-1; Vertical distance between described the 3rd reduction unit output shaft axle center and described the 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 to adopt three planetary gears to be distributed in sun gear structure all around.
CN201310296844.0A 2013-07-16 2013-07-16 Lifting device Active CN103334416B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821124A (en) * 2014-01-21 2014-05-28 武汉船用机械有限责任公司 Mounting rack used for pinion-and-rack platform lifting system
CN106064258A (en) * 2016-07-05 2016-11-02 武汉船用机械有限责任公司 A kind of tooth bar 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

Citations (7)

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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
CN1914438A (en) * 2004-01-30 2007-02-14 纳博特斯克株式会社 Eccentric swing 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
CN103015388A (en) * 2013-01-21 2013-04-03 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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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
CN1914438A (en) * 2004-01-30 2007-02-14 纳博特斯克株式会社 Eccentric swing 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
CN103015388A (en) * 2013-01-21 2013-04-03 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吴勇，雍军，袁霄: ""自升式平台升降系统齿轮齿条疲劳强度分析"", 《石油矿场机械》, vol. 41, no. 6, 25 June 2012 (2012-06-25), pages 25 - 29 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821124A (en) * 2014-01-21 2014-05-28 武汉船用机械有限责任公司 Mounting rack used for pinion-and-rack platform lifting system
CN106064258A (en) * 2016-07-05 2016-11-02 武汉船用机械有限责任公司 A kind of tooth bar cutting method and gear rack elevating device
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

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