EP0052065A2 - Kraftbegrenzungsübersetzungsgetriebe für das Antriebszahnrad einer Selbsthebeplattform - Google Patents

Kraftbegrenzungsübersetzungsgetriebe für das Antriebszahnrad einer Selbsthebeplattform Download PDF

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Publication number
EP0052065A2
EP0052065A2 EP81430039A EP81430039A EP0052065A2 EP 0052065 A2 EP0052065 A2 EP 0052065A2 EP 81430039 A EP81430039 A EP 81430039A EP 81430039 A EP81430039 A EP 81430039A EP 0052065 A2 EP0052065 A2 EP 0052065A2
Authority
EP
European Patent Office
Prior art keywords
reducer
pinion
lifting
reduction gear
self
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
EP81430039A
Other languages
English (en)
French (fr)
Other versions
EP0052065A3 (en
EP0052065B1 (de
Inventor
François Durand
Auguste Smulders
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.)
DURAND, FRANCOIS
Smulders Auguste
Engrenages et Reducteurs SA
Original Assignee
Engrenages et Reducteurs SA
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 Engrenages et Reducteurs SA filed Critical Engrenages et Reducteurs SA
Priority to AT81430039T priority Critical patent/ATE17958T1/de
Publication of EP0052065A2 publication Critical patent/EP0052065A2/de
Publication of EP0052065A3 publication Critical patent/EP0052065A3/fr
Application granted granted Critical
Publication of EP0052065B1 publication Critical patent/EP0052065B1/de
Expired legal-status Critical Current

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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
    • E02B17/04—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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19633—Yieldability in gear trains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19637—Gearing with brake means for gearing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/1967—Rack and pinion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19679—Spur
    • Y10T74/19684—Motor and gearing

Definitions

  • the object of the present invention is a force limiting reduction gear for lifting pinion of self-lifting platform which allows, for the value of the rotation to be obtained at the pinion during a change in position of the tab between its guides, to reliably limit the forces transmitted by the pinion and the various gear units to a precise value, while allowing the load to be distributed equitably between the various pinions of the same leg corner or the same leg .
  • the reduction gear makes it possible to measure the force acting on each pinion, force which can be part of the weight of the platform plus part of the vertical forces due to the overturning torque, this when this torque is taken up in partly vertically by the pinions and partly horizontally by the leg guides.
  • the entire gearbox is divided into two, a geared motor with brake mounted floating on the input shaft of a second gearbox which is the basic gearbox which drives the pinion.
  • the gear motor with brake is provided with a reaction arm which is connected to the structure by a hydraulic cylinder whose oil pressure is controlled; until a certain load on the pinion, the piston of the jack will not move, from a predetermined load the piston will sink and the pinion will rotate a few degrees without uncontrolled overloads since it is easy to maintain a limit value for pressure in a hydraulic cylinder.
  • Each rotation of the pinion with the maximum controlled load corresponds to a rotation of the primary reduction gearbox with brake and motor which is mounted floating, the brake can be oversized, it does not need to slip to allow the pinion to rotate with these few degrees.
  • the rotation of the primary reducer corresponding to the rotation of the pinion - when changing support on the tab guides, is small enough to directly attach the reaction arm of the primary reducer to the structure of the lifting mechanism with the interposition of a sufficiently long hydraulic cylinder.
  • the geared motor with brake has as its reaction arm a toothed wheel which meshes with a rack which slides while bearing both against an appropriate guide of the base reducer housing and against a jack. hydraulic.
  • the platform is suspended from the racks of the leg via the gables; when the tab changes position between its guides, the weight of the platform always remains on the pinions and to this weight is added a moment of reversal which overloads the teeth of the pinions which mesh with the rack or racks which tend to rise due to the above-mentioned overturning moment.
  • the pinions whose racks tend to rise, let these racks rise by carrying out under a determined load the slight rotation which allows the racks to take the place corresponding to the desired support of the lug between its guides, the pinions, their control gearboxes as well as the teeth of the racks will not have to support a load greater than that which corresponds to the load determined for the aforementioned slight rotation of the pinion.
  • the load for which the slight rotation of the pinion can take place is not a function of the engine brake but is a function of the oil pressure in the jack against which the motorcycle - floating reducer is supported, this by means of the rack which meshes with the toothed wheel which acts as a reaction arm.
  • the cylinder stroke and the corresponding length of the rack are long enough to allow a displacement corresponding to the slight rotation of the pinion multiplied by the reduction ratio of the basic reducer, reduction ratio which allows to decrease substantially in the same proportion the cylinder retaining force relative to the force acting between the pinion and rack of the lug.
  • the rotation of the pinion is of the order of fifteen millimeters at the level of the pitch diameter for a displacement of the leg of twenty five millimeters at the level of the guides, with a reduction ratio of 1/80 for the basic reducer and a pitch diameter of the gear arm reaction arm equal to half the pitch diameter of the pinion, the jack must be adjusted for a force corresponding to 1/40 of the force on the teeth of the pinion, the stroke of the jack is then 40 x 15 or sixty centimeters, which is quite achievable.
  • the basic reducer and the floating gear motor with brake are not shown in section, this for the purpose of simplification; these reducers may as well be planetary reducers, monosatel reducers- lites, conventional multi-gear reducers than combinations of screw reducers with cylindrical or bevel gear trains, the only condition is that both the basic reducer and the floating gear motor must be reversible, this is that is to say that the slow shaft must be able to drive the fast shaft with a mechanical efficiency which is substantially constant over time; in the case of using a conventional planetary reducer, a ring with internal teeth of a planetary gear can serve as a reaction arm, this without changing the character of the invention, the mechanical elements which are downstream of this ring to internal teeth serving as reaction arms are then considered to be mounted floating on the mechanical elements which are downstream.
  • the reducers chosen are a planetary reduction gear with hollow shaft for the basic reduction gear and a screw reduction gear with hollow shaft with primary with two cylindrical trains for the floating gear motor.
  • 1 is the leg corner
  • 2 are the spacer tubes which join together the different leg corners
  • 3 are the pairs of guides located at the top and at the bottom of the platform, guides against which the edges 4 of the leg corner 1 are supported; there are generally about fifteen meters between the upper and lower guides, this makes it difficult to have less than twenty five millimeters of play between the edges 4 and each pair of guides 3.
  • 13 is the input shaft of the reduction gear 11, the screw reduction gear with hollow shaft 14 is mounted floating on the shaft 13 which is driven by the key 15.
  • 16 is a primary reducer with two sets of cylindrical gears which is driven at 17 by the brake motor 18 of which 19 is the terminal box and 20 the wires supply, wires which lie substantially in the axis of rotation of the shaft 13.
  • 21 is a ring gear which is concentric with the shaft 13 while being integral with the housing of the reduction gear 14, the ring gear 21 is the reducer reaction arm 14; 22 is a rack which is integral with the piston 23 of the jack 24 of which 25 is the pressure oil supply tube.
  • 26 is a guide with end-of-travel stop 27 for the rack 22.
  • the jack 24 and the guide 26 are integral with the casing of the basic reducer 11.
  • the pinions When the legs are raised, the pinions have only the weight of the legs to support, this weight is only a small fraction of the weight of the platform; on the other hand, the bending moments on the legs, during towing generally have no influence on the pinions, the clearances between guides and legs are then eliminated by blocking wedges or shims; consequently, limiting the forces at the pinions and their reducers is generally only important for the direction of the efforts corresponding to the retention of the weight of the platform when it is lifted above the water.
  • FIGS. 1 and 2 represent a device with a single-acting cylinder; it is obvious that without changing anything in the character of the invention, the limit stop 27 can be replaced by another jack identical to 24 and that then the same anti-overload advantages can be achieved during towing with raised legs.
  • the double-acting hydraulic cylinder 30 with its supply pipes 3.1 and 32 is integral with the plate 33, itself integral with the casing of the basic reducer II.
  • the piston rod 34 is secured at 35 to the rack 22 guided at 26.
  • the toothed wheel 36 is secured to the input shaft 13 of the base reducer 11, this with the key 37; the double-acting hydraulic or pneumatic cylinder 38 is screwed onto the casing of the basic reducer 11, the finger 40 integral with the piston 39 can be retracted or removed from any notch of the toothed wheel 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Gear Transmission (AREA)
  • Braking Arrangements (AREA)
  • Transmission Devices (AREA)
  • Types And Forms Of Lifts (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Jib Cranes (AREA)
  • Handcart (AREA)
  • Actuator (AREA)
EP81430039A 1980-11-10 1981-11-02 Kraftbegrenzungsübersetzungsgetriebe für das Antriebszahnrad einer Selbsthebeplattform Expired EP0052065B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81430039T ATE17958T1 (de) 1980-11-10 1981-11-02 Kraftbegrenzungsuebersetzungsgetriebe fuer das antriebszahnrad einer selbsthebeplattform.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8024386 1980-11-10
FR8024386A FR2493887B1 (fr) 1980-11-10 1980-11-10 Reducteur limiteur d'effort pour pignon de levage de plate-forme auto-elevatrice

Publications (3)

Publication Number Publication Date
EP0052065A2 true EP0052065A2 (de) 1982-05-19
EP0052065A3 EP0052065A3 (en) 1983-08-10
EP0052065B1 EP0052065B1 (de) 1986-02-12

Family

ID=9248044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81430039A Expired EP0052065B1 (de) 1980-11-10 1981-11-02 Kraftbegrenzungsübersetzungsgetriebe für das Antriebszahnrad einer Selbsthebeplattform

Country Status (11)

Country Link
US (2) US4480491A (de)
EP (1) EP0052065B1 (de)
JP (1) JPS57160893A (de)
KR (1) KR890000012B1 (de)
AT (1) ATE17958T1 (de)
BR (1) BR8107271A (de)
CA (1) CA1175257A (de)
DE (1) DE3173780D1 (de)
FR (1) FR2493887B1 (de)
SU (1) SU1110388A3 (de)
YU (1) YU265781A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303328A (zh) * 2011-08-24 2012-01-04 山东工友集团股份有限公司 垂直钻排齿轮齿条同步导向装置
WO2014140473A1 (fr) * 2013-03-15 2014-09-18 Nov-Blm Dispositif pour la manoeuvre en translation d'une structure mobile par rapport à un support fixe
CN107574807A (zh) * 2017-08-31 2018-01-12 武汉船用机械有限责任公司 一种液压插销升降平台
CN107857209A (zh) * 2016-05-16 2018-03-30 贺菊香 一种变电站电力巡检设备专用支撑台

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493887B1 (fr) * 1980-11-10 1986-05-02 Francois Durand Reducteur limiteur d'effort pour pignon de levage de plate-forme auto-elevatrice
FR2607165B1 (fr) * 1986-11-26 1990-07-20 Technip Geoproduction Dispositif de suspension des jambes de support de plate-forme petroliere auto-elevatrice
JPH0247459U (de) * 1988-09-28 1990-03-30
US5486069A (en) * 1994-06-06 1996-01-23 Breeden; John Offshore jack-up rig locking system
US5797703A (en) * 1996-02-02 1998-08-25 Searex, Inc. Elevating unit for use with jack-up rig
US5915882A (en) * 1997-06-26 1999-06-29 Letourneau, Inc. Jack-up platform locking apparatus and method
SG120998A1 (en) * 2004-09-15 2006-04-26 Offshore Technology Dev Pte Lt Interactive leg guide for offshore self elevating unit
DE102005023967B4 (de) * 2005-05-20 2007-04-19 Bos Gmbh & Co. Kg Fensterrollo mit längsverstellbarer Wickelwelle
DE102006039984A1 (de) * 2006-08-25 2008-02-28 Robert Bosch Gmbh Selbstverstärkende elektromechanische Reibungsbremse
CN102180238A (zh) * 2011-04-15 2011-09-14 宝鸡石油机械有限责任公司 自升式平台锁紧装置
CN102628264A (zh) * 2012-04-19 2012-08-08 吴平平 一种用于自升式钻井平台的升降装置
CN102619207A (zh) * 2012-04-19 2012-08-01 吴平平 一种用于自升式钻井平台的双输出升降装置
CN105002877B (zh) * 2015-06-30 2017-03-01 浙江海洋学院 一种用于自升式海洋平台的防倾覆系统
KR101945674B1 (ko) * 2018-08-24 2019-04-17 배명종 승하강장치의 비상브레이크
CN108895121B (zh) * 2018-09-07 2024-05-03 莱科(衢州市)科技有限公司 蜗轮蜗杆减速器及减速电机
CN113716484B (zh) * 2021-09-13 2023-04-14 扬州工业职业技术学院 一种工程用升降机

Family Cites Families (18)

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US236797A (en) * 1881-01-18 William gast
US1536344A (en) * 1924-09-23 1925-05-05 American Type Founders Co Printer's quoin key
US1923879A (en) * 1932-02-23 1933-08-22 George K Parsons Transmission
US3056573A (en) * 1956-07-12 1962-10-02 Rockwell Mfg Co Fluid pressure actuated valve
US3014346A (en) * 1957-09-10 1961-12-26 Jersey Prod Res Co Method and means for raising and lowering a platform
US3174353A (en) * 1961-02-23 1965-03-23 Dravo Corp Speed reducing gear
FR1305474A (fr) * 1961-07-27 1962-10-05 Dispositif répartiteur d'efforts
US3738031A (en) * 1971-01-21 1973-06-12 Westinghouse Air Brake Co Resiliently mounted elevator drive housing
US3986368A (en) * 1975-05-27 1976-10-19 Levingston Shipbuilding Company Load equalizing and shock absorber system for off-shore drilling rigs
DE2736938C2 (de) * 1977-08-16 1979-03-15 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Meeres-Hubinsel
NL7709951A (en) * 1977-09-09 1979-03-13 Verolme Maschf Engineering Com Pontoon mounted work island - has leg rack pinions coupled by torsion shafts to drive unit
NL7804479A (en) * 1978-04-26 1979-10-30 Verolme Maschf Engineering Com Mobile offshore drilling platform with retractable piles - has cushions between pile climbing mechanism and pontoon pressurised when pontoon is floating
JPS5565620A (en) * 1978-11-09 1980-05-17 Ishikawajima Harima Heavy Ind Co Ltd Rack drive pinion type jack
FR2476053A2 (fr) * 1979-10-16 1981-08-21 Durand Engrenages Elevateur a double effet
FR2506715A2 (fr) * 1980-07-30 1982-12-03 Brissonneau & Lotz Dispositif de securite pour plate-forme marine
FR2493887B1 (fr) * 1980-11-10 1986-05-02 Francois Durand Reducteur limiteur d'effort pour pignon de levage de plate-forme auto-elevatrice
US4395160A (en) * 1980-12-16 1983-07-26 Lockheed Corporation Tensioning system for marine risers and guidelines
US4497591A (en) * 1983-09-06 1985-02-05 Gillis Don A Advancing mechanism and system utilizing same for raising and lowering a work platform

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303328A (zh) * 2011-08-24 2012-01-04 山东工友集团股份有限公司 垂直钻排齿轮齿条同步导向装置
WO2014140473A1 (fr) * 2013-03-15 2014-09-18 Nov-Blm Dispositif pour la manoeuvre en translation d'une structure mobile par rapport à un support fixe
FR3003324A1 (fr) * 2013-03-15 2014-09-19 Nov Blm Dispositif pour la manoeuvre en translation d'une structure mobile par rapport a un support fixe
CN105229236A (zh) * 2013-03-15 2016-01-06 法国Nov-Blm公司 用于平移操纵能相对于固定支座移动的结构的装置
US9702105B2 (en) 2013-03-15 2017-07-11 Nov-Blm Device for translationally manoeuvring a structure that is able to move with respect to a fixed support
CN107857209A (zh) * 2016-05-16 2018-03-30 贺菊香 一种变电站电力巡检设备专用支撑台
CN107574807A (zh) * 2017-08-31 2018-01-12 武汉船用机械有限责任公司 一种液压插销升降平台

Also Published As

Publication number Publication date
KR830007420A (ko) 1983-10-21
FR2493887A1 (fr) 1982-05-14
FR2493887B1 (fr) 1986-05-02
EP0052065A3 (en) 1983-08-10
BR8107271A (pt) 1982-08-03
KR890000012B1 (ko) 1989-03-02
JPS57160893A (en) 1982-10-04
YU265781A (en) 1983-10-31
ATE17958T1 (de) 1986-02-15
US4480491A (en) 1984-11-06
SU1110388A3 (ru) 1984-08-23
DE3173780D1 (en) 1986-03-27
EP0052065B1 (de) 1986-02-12
US4574650A (en) 1986-03-11
CA1175257A (fr) 1984-10-02

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