JPS56128822A - Equalizing device for rack and pinion type elevator - Google Patents

Equalizing device for rack and pinion type elevator

Info

Publication number
JPS56128822A
JPS56128822A JP3209980A JP3209980A JPS56128822A JP S56128822 A JPS56128822 A JP S56128822A JP 3209980 A JP3209980 A JP 3209980A JP 3209980 A JP3209980 A JP 3209980A JP S56128822 A JPS56128822 A JP S56128822A
Authority
JP
Japan
Prior art keywords
platform body
rack
legs
elevating
elevating units
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.)
Granted
Application number
JP3209980A
Other languages
Japanese (ja)
Other versions
JPS6034645B2 (en
Inventor
Kenichi Onoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP3209980A priority Critical patent/JPS6034645B2/en
Publication of JPS56128822A publication Critical patent/JPS56128822A/en
Publication of JPS6034645B2 publication Critical patent/JPS6034645B2/en
Expired legal-status Critical Current

Links

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
    • E02B17/04—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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)

Abstract

PURPOSE: To make it possible to distribute load equally, at the time of operation stoppage, to elevator installed around the supporting legs for a rack and pinion type elevator system for an elevating off-shore platform, by making use of a oil hydraulic cylinder on the head side.
CONSTITUTION: When a platform body 4 is in a floating state on the sea, weight of legs 2 are transmitted to the platform body 4 through elevating units 3, upper joints 18 and rubber cushions 28. Then when the legs 2 reach the bottom to start to lift up the platform body 4, load from a rack 6 is transmitted to the platform body 4 through the elevating units 3, joints 18, hydraulic cylinders 23 and lower joints 21. At the time, when the elevating units 3 begin supporting the weight of the platform body 4 from the supporting legs 2 and deflection reactions of the rubber cushions 28 are applied to each hydraulic cylinders 23, operations of the elevating units are to be stopped whenever the hydraulic pressure reaches a set value and presure oil of the hydraulic cylinder on the head side is to be removed and pistons level is to be aligned at the middle part of the cylinders.
COPYRIGHT: (C)1981,JPO&Japio
JP3209980A 1980-03-13 1980-03-13 Equalizing device for rack and pinion lifting equipment Expired JPS6034645B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3209980A JPS6034645B2 (en) 1980-03-13 1980-03-13 Equalizing device for rack and pinion lifting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3209980A JPS6034645B2 (en) 1980-03-13 1980-03-13 Equalizing device for rack and pinion lifting equipment

Publications (2)

Publication Number Publication Date
JPS56128822A true JPS56128822A (en) 1981-10-08
JPS6034645B2 JPS6034645B2 (en) 1985-08-09

Family

ID=12349440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3209980A Expired JPS6034645B2 (en) 1980-03-13 1980-03-13 Equalizing device for rack and pinion lifting equipment

Country Status (1)

Country Link
JP (1) JPS6034645B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383410A (en) * 2011-09-02 2012-03-21 抚州市临川白勇海洋工程有限公司 Offshore drilling platform lift control device
KR101291350B1 (en) * 2010-09-01 2013-07-30 삼성중공업 주식회사 Fixing apparatus of drillship for shallow sea drilling
CN103938602A (en) * 2014-03-21 2014-07-23 武汉船用机械有限责任公司 Control method for hydraulic lifting system of ocean platform
CN106567374A (en) * 2016-10-11 2017-04-19 武汉船用机械有限责任公司 Continuous type hydraulic pin lifting system
CN108691307A (en) * 2017-04-11 2018-10-23 烟台中集来福士海洋工程有限公司 Self-elevating drilling platform
CN113089620A (en) * 2021-03-22 2021-07-09 上海外高桥造船有限公司 Self-elevating drilling platform locking device
CN113174917A (en) * 2021-03-22 2021-07-27 上海外高桥造船有限公司 Anti-locking device for self-elevating drilling platform

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101291350B1 (en) * 2010-09-01 2013-07-30 삼성중공업 주식회사 Fixing apparatus of drillship for shallow sea drilling
CN102383410A (en) * 2011-09-02 2012-03-21 抚州市临川白勇海洋工程有限公司 Offshore drilling platform lift control device
CN103938602A (en) * 2014-03-21 2014-07-23 武汉船用机械有限责任公司 Control method for hydraulic lifting system of ocean platform
CN106567374A (en) * 2016-10-11 2017-04-19 武汉船用机械有限责任公司 Continuous type hydraulic pin lifting system
CN108691307A (en) * 2017-04-11 2018-10-23 烟台中集来福士海洋工程有限公司 Self-elevating drilling platform
CN113089620A (en) * 2021-03-22 2021-07-09 上海外高桥造船有限公司 Self-elevating drilling platform locking device
CN113174917A (en) * 2021-03-22 2021-07-27 上海外高桥造船有限公司 Anti-locking device for self-elevating drilling platform

Also Published As

Publication number Publication date
JPS6034645B2 (en) 1985-08-09

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