EP0052065B1 - Réducteur limiteur d'effort pour pignon de levage de plate-forme auto-élévatrice - Google Patents
Réducteur limiteur d'effort pour pignon de levage de plate-forme auto-élévatrice Download PDFInfo
- Publication number
- EP0052065B1 EP0052065B1 EP81430039A EP81430039A EP0052065B1 EP 0052065 B1 EP0052065 B1 EP 0052065B1 EP 81430039 A EP81430039 A EP 81430039A EP 81430039 A EP81430039 A EP 81430039A EP 0052065 B1 EP0052065 B1 EP 0052065B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- limiting
- pinion
- reducer
- platform
- 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.)
- Expired
Links
- 239000003638 chemical reducing agent Substances 0.000 title abstract description 43
- 230000009467 reduction Effects 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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-elevating platform which allows, for the value of the rotation to be obtained at the pinion during a change of position of the leg between its guides, to reliably limit the forces transmitted by the pinion and the various gearbox organs to a precise value, while allowing the load to be distributed equitably between the different pinions of the same leg corner or same leg.
- the reducer 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. partly vertically by the pinions and partly horizontally by the leg guides.
- the assembly of the reducer according to the invention is divided into two, a motor-reducer with brake mounted floating on the input shaft of a second reducer which is the basic reducer connected directly to the pinion, the geared motor with brake having a reaction arm which is connected to a fixed point of the lifting system by at least one hydraulic cylinder whose fluid pressure is controlled, stops mechanically limiting the stroke of the 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 during a change of support on the lug guides, is small enough to directly fix the arm of reaction 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 be mounted due to the above-mentioned overturning moment.
- 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 reaction arm.
- the stroke of the jack 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 makes it possible to decrease substantially in the same proportion cylinder retaining force relative to the force acting between 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 movement of the leg by twenty-five millimeters at the level of the guides, with a reduction ratio of 1/60 for the basic reducer and a pitch diameter of the gear wheel reaction arm equal to half the pitch diameter of the pinion , the jack must be adjusted for an effort corresponding to 1/40 of the effort 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 can also be planetary reducers, mono-satellite reducers, conventional reducers with several trains as well as combinations of screw reducers with cylindrical or bevel gear trains, the only condition is that, as well the reducer of basic that the floating gear motor must be reversible, that is to say that the slow shaft must be able to drive the fast shaft with a mechanical efficiency 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 gearboxes chosen are a planetary gearbox with hollow shaft for the basic gearbox and a screw gearbox 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 bring together the different leg corners
- 3 are the pairs of guides located at the top and bottom of the platform, guides against which the edges 4 from the corner of leg 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 of supply, wires which lie substantially in the axis of rotation of the shaft 13.
- 21 is a toothed crown which is concentric with the shaft 13 while being integral with the housing of the reducer 14, the toothed crown 21 is the arm of reaction of the reducer 14:
- 22 is a rack which is integral with the piston 23 of the jack 24 of which 25 is the oil supply tube under pressure.
- 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 that 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, the limitation of the forces at the pinions and their reducers is generally only important for the direction of the forces 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 31 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
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Gear Transmission (AREA)
- Braking Arrangements (AREA)
- Transmission Devices (AREA)
- Jib Cranes (AREA)
- Types And Forms Of Lifts (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Actuator (AREA)
- Handcart (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
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 EP0052065A2 (fr) | 1982-05-19 |
EP0052065A3 EP0052065A3 (en) | 1983-08-10 |
EP0052065B1 true EP0052065B1 (fr) | 1986-02-12 |
Family
ID=9248044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81430039A Expired EP0052065B1 (fr) | 1980-11-10 | 1981-11-02 | Réducteur limiteur d'effort pour pignon de levage de plate-forme auto-élévatrice |
Country Status (11)
Country | Link |
---|---|
US (2) | US4480491A (ko) |
EP (1) | EP0052065B1 (ko) |
JP (1) | JPS57160893A (ko) |
KR (1) | KR890000012B1 (ko) |
AT (1) | ATE17958T1 (ko) |
BR (1) | BR8107271A (ko) |
CA (1) | CA1175257A (ko) |
DE (1) | DE3173780D1 (ko) |
FR (1) | FR2493887B1 (ko) |
SU (1) | SU1110388A3 (ko) |
YU (1) | YU265781A (ko) |
Families Citing this family (20)
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 (ko) * | 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 |
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 |
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 |
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 |
FR3003324B1 (fr) * | 2013-03-15 | 2015-03-13 | Nov Blm | Dispositif pour la manoeuvre en translation d'une structure mobile par rapport a un support fixe |
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 |
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 |
CN107574807B (zh) * | 2017-08-31 | 2019-08-23 | 武汉船用机械有限责任公司 | 一种液压插销升降平台 |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1980
- 1980-11-10 FR FR8024386A patent/FR2493887B1/fr not_active Expired
-
1981
- 1981-04-02 US US06/250,145 patent/US4480491A/en not_active Expired - Fee Related
- 1981-11-02 EP EP81430039A patent/EP0052065B1/fr not_active Expired
- 1981-11-02 DE DE8181430039T patent/DE3173780D1/de not_active Expired
- 1981-11-02 AT AT81430039T patent/ATE17958T1/de not_active IP Right Cessation
- 1981-11-09 SU SU813356558A patent/SU1110388A3/ru active
- 1981-11-09 CA CA000389735A patent/CA1175257A/fr not_active Expired
- 1981-11-10 JP JP56180278A patent/JPS57160893A/ja active Pending
- 1981-11-10 YU YU02657/81A patent/YU265781A/xx unknown
- 1981-11-10 KR KR1019810004306A patent/KR890000012B1/ko active
- 1981-11-10 BR BR8107271A patent/BR8107271A/pt unknown
-
1984
- 1984-08-22 US US06/643,013 patent/US4574650A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
YU265781A (en) | 1983-10-31 |
CA1175257A (fr) | 1984-10-02 |
ATE17958T1 (de) | 1986-02-15 |
KR830007420A (ko) | 1983-10-21 |
US4574650A (en) | 1986-03-11 |
EP0052065A3 (en) | 1983-08-10 |
FR2493887A1 (fr) | 1982-05-14 |
EP0052065A2 (fr) | 1982-05-19 |
FR2493887B1 (fr) | 1986-05-02 |
KR890000012B1 (ko) | 1989-03-02 |
US4480491A (en) | 1984-11-06 |
BR8107271A (pt) | 1982-08-03 |
JPS57160893A (en) | 1982-10-04 |
DE3173780D1 (en) | 1986-03-27 |
SU1110388A3 (ru) | 1984-08-23 |
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