CN101085668A - Space interference-resistant arrangement for multiple hanging points crane hoisting wire rope - Google Patents
Space interference-resistant arrangement for multiple hanging points crane hoisting wire rope Download PDFInfo
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- CN101085668A CN101085668A CN 200710011936 CN200710011936A CN101085668A CN 101085668 A CN101085668 A CN 101085668A CN 200710011936 CN200710011936 CN 200710011936 CN 200710011936 A CN200710011936 A CN 200710011936A CN 101085668 A CN101085668 A CN 101085668A
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- winch
- girder
- line
- cover plate
- leading sheave
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Abstract
The interference allocation of the crane steel cable comprises the main beam, active pulley set, static pulley set, rolling machine, featuring in the guide pulley at the top space, cover at both ends having roll bracket with different heights, linking line of both ends of the main beam roller barrel vertical central line with the center line of the guide pulley forming the same small deviation angle with the center line of the main beam, consistent in deviation angle of the each rolling machine at the same end, with the main beam both ends opposite in deviation angle with the main beam. The interference distribution is simple, convenient, efficient, safe, and reliable.
Description
Technical field
The present invention relates to a kind of elevator machinery, relate in particular to a kind of multi-suspension-centres crane that is used for lifting when the marine drilling platform segmentation is docked usefulness, and the multireel on other similar hoisting crane is raised the space interference-resistant layout of system.
Background technology
Marine drilling platform segmentation butt joint is to having proposed harsh requirement with multi-suspension-centres crane, hoisting capacity is wanted super large (unite lifting and can reach 20,000 tons), and lifting altitude is wanted superelevation (maximum can reach 103m), girder span big (span is 125m); The hoisting crane of super large hoisting capacity reduces the high building cost that is brought of high-grade (C50 level) concrete bearing for increasing lifting altitude, need girder to adopt the lower flange plate level and the low main beam structure in the middle high both sides of upper cover plate, and the width of beam is less; Because hoisting capacity is excessive, must adopts multireel to raise system's (the every every end 2 of girder overlaps or the above hoisting system of 2 covers) lifting simultaneously and finish.
And the quantity of conventional hoist lifting mechanism and winding system is few, is generally 1 to 2 cover, arranges and does not have staggered situation, only needs floor plan to realize, but can't finish the lifting of super large weight on platform; So can only adopt multi-suspension-centres crane to realize, and adopt many cover lifting mechanisms and steel cable winding system to be arranged in the girder narrow width, general layout pattern can't be realized at all.Multi-suspension-centres crane is generally used for lifting by crane super large load, and its girder height dimension is bigger, and width dimensions is less between the girder web, and the independent elevator system space of its many covers is arranged and caused interfering with each other between steel rope and between steel rope and girder easily; Research multiple hanging points crane hoisting wire rope winding system space interference-resistant arrangement is the key issue that needs to be resolved hurrily.
Summary of the invention
The objective of the invention is at above problem, to overlap winch more and be placed on girder top, by adopting different winch mast heights to form 1 little drift angle with the relative girder line of centers of line that makes the every end of girder overlap lifting drum center and leading sheave center more, make steel rope form alternative arrangement along the girder upper space, enter girder by track adjusting wheel from aperture then and be wound on fixed, the running block, solve the problems referred to above; The technological means that the present invention adopts is as follows:
A kind of multiple hanging points crane hoisting wire rope space interference-resistant is arranged, comprise girder, running block, fixed pulley group and winch, in the upper space of girder upper cover plate leading sheave is housed, the cover plate at two ends is provided with the winch bearing and is used for fixing winch, described steel rope forms the steel cable area occupied between the live part of leading sheave and winch, this area can be that two the triangle Δ ABC and the Δ A ' B ' C ' of drift angle characterizes in order to leading sheave, it is characterized in that described two triangles are along demarcation line I-I ' symmetry and arrange that in opposite directions demarcation line I-I ' constitutes little bias angle theta with the girder line of centers; Described girder upper cover plate two ends are provided with 2 covers or the above winch of 2 covers; The height difference of described each winch bearing, and the setting height(from bottom) of each leading sheave is corresponding also different with the height of each winch bearing with the position, and formed steel cable takies face not on same plane; Described two ends are respectively overlapped the reel vertical center line of winch and the line of leading sheave line of centers and the line of centers of girder and are also formed 1 little drift angle α, be positioned at the drift angle direction unanimity that each winch on the same end produces with girder, and the winch at girder two ends is relative with the drift angle that girder forms; The steel rope of described winch along the upper space of girder cover plate through a fixed guide pulley from the list on the girder upper cover plate restrict out/hand-hole enters on the girder assembly pulley decided at the higher level but not officially announced, be wound on the running block then, between movable pulley and fixed pulley, twine repeatedly, be fixed at last on the fixed end of fixed pulley group side on the girder.
The scope of described little bias angle theta and little drift angle α is:
When L＞a/2,0 °＜θ＜90 °, α≤ζ,
Wherein: L is a reel length, and a is a girder upper cover plate width, and b is a girder upper cover plate length, and ζ is winch rope stretching drift angle.
Optimal case is that demarcation line I-I ' respectively overlaps winch with described two ends reel vertical center line parallels with the line of leading sheave line of centers, and little drift angle α equals little bias angle theta; Winch and leading sheave symmetric arrangement are respectively overlapped in two ends.
Running block in each hoisting system that described each winch is formed is connected by connecting rod.
Winch bearing on the girder two end cover plate holds stepped distribution, and the setting height(from bottom) of each leading sheave is corresponding with the height of each winch bearing.
Owing to adopted technique scheme, multiple hanging points crane hoisting wire rope space interference-resistant provided by the invention is arranged, realized by a kind of simple structure, the steel rope system space interference-resistant arrangement of the lifting mechanism that many cover hoisting systems are formed is suitable for adopting the big elevating height of narrow compound girder, the multi-suspension-centres crane of large span, thereby makes this hoisting crane have following sorrow point when super large hoisting capacity works such as handling drilling platform:
1, can make hoisting mechanism of multi-lifting-point joint crane safe and reliable;
2, simple, the manufacturing of arrangement of mechanism, installation, maintenance are convenient;
3, the lifting mechanism efficient height of forming by many covers hoisting system;
4, from heavy and light, can adapt to the little girder of width, thereby reduce whole hoisting crane cost.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a front view of the present invention;
Fig. 3 is a girder birds-eye view of the present invention;
Fig. 4 is the winding structure scheme drawing of steel rope of the present invention;
Fig. 1 is a specification digest accompanying drawing of the present invention.
Among the figure: 1, winch, 2, leading sheave, 3, running block, 4, connecting rod, 5, the fixed pulley group, 6, steel rope, 7, the winch bearing, 8, singly restrict out/hand-hole, 9, fixed end, 10, girder, 11, upper cover plate.
The specific embodiment
Arrange as Fig. 1～shown in Figure 4 multiple hanging points crane hoisting wire rope space interference-resistant, be applied to hang overweight structure such as drilling platform with in the multi-suspension-centres crane.This hoisting crane is generally used for lifting by crane super large load, its girder height dimension is bigger, and the girder web asks that width dimensions is less, usually form by many covers hoisting system, every cover hoisting system comprises compositions such as connecting rod 4, fixed pulley group 5, steel rope 6, winch bearing 7 between winch 1, leading sheave 2, running block 3, running block, common every cover hoisting system comprises 4 running blocks, 1 suspension centre of control below each running block.Winch 1 comprises parts such as reel (comprising the steel rope pressing plate), retarder, drg, exposed gear, coupler, floating axle, i.e. a whole set of driver train of braking to final stage from the coupler that links to each other with motor.Wherein steel rope 6 forms the steel cable area occupied between the live part of leading sheave 2 and winch 1, this area can characterize in order to two triangle Δ ABC and the Δ A ' B ' C ' of leading sheave 2 for angle top, as shown in Figure 4 when L＞a/2, (L is a reel length, a is a girder upper cover plate width, b is a girder upper cover plate length, ζ is winch rope stretching drift angle) interference problem that just just is bound to produce when two positive caving point A of triangle and A ' collide, solve this problem with the traditional mechanical structure and can not solve this problem in hoister in large tonnage; Therefore the present invention arranges also that along demarcation line I-I ' symmetry demarcation line I-I ' constitutes little bias angle theta with the girder line of centers with two triangles in opposite directions, and the scope of described little bias angle theta is: 0 °＜θ＜90 °.
Winch 1 is put into above the cover plate of girder 10, arranges 2 covers or the above winch of 2 covers above the every girder two end cover plate; The steel rope 6 of every cover winch along the upper space of girder cover plate through a fixed guide pulley 2 restrict out from the list on the girder upper cover plate/hand-hole 8 enters on the girder assembly pulley 5 decided at the higher level but not officially announced, be wound into then on the running block 3, between movable pulley and fixed pulley, twine as shown in Figure 4 repeatedly, be fixed at last on the fixed end 9 of girder pulley side decided at the higher level but not officially announced.
Its every cover winch above middle girder two ends adopts the winch bearing 7 of differing heights, make the rope stretching of different lifting drum steel ropes 6 highly different, and formed steel cable takies face not on same plane; Winch bearing 7 on girder 10 two end cover plates holds stepped distribution, and the setting height(from bottom) of each leading sheave 2 is corresponding as shown in Figure 3 with the height of each winch bearing 7.Two ends are respectively overlapped the reel vertical center line of winch 1 and the line of leading sheave 2 line of centerss and the line of centers of girder 10 and are also formed 1 little drift angle α, the scope of little drift angle α in addition:
Be α≤ζ, wherein ζ is that winch rope stretching drift angle span is smaller or equal to 2.
And boundary line I-I ' respectively overlaps winch 1 with described two ends reel vertical center line parallels with the line of leading sheave 2 line of centerss, and little drift angle α equals little bias angle theta; Winch and leading sheave symmetric arrangement are respectively overlapped in two ends, are positioned at the drift angle direction unanimity that each winch 1 on the same end produces with girder 10; Layout can make steel rope 6 form alternative arrangement in the space like this, has both avoided between steel rope and the interference of steel rope and girder, makes the drift angle of steel rope and lifting drum and pulley meet standard again.Running block 3 in each hoisting system of each winch 1 composition is connected by connecting rod 4 in addition.
Here arrange that with girder 6 cover hoisting systems are that example describes: on girder 10, need to arrange 6 cover winchs 1, in order to guarantee that the drift angle of steel rope on reel and pulley is no more than standard code, the every end 3 cover winchs 1 of final employing, the long b of its middle girder upper cover plate is 130 meters, the wide a of upper cover plate is 4 meters, hoisting mechanism deflection angle of rope ζ allowable is smaller or equal to 2 degree, the value of obtaining θ according to the fwd empirical equation is 1.04 degree, at this moment it also is 1.04 degree that the line of centers of getting the line of the reel vertical center line that respectively overlaps winch 1 in two ends and leading sheave 2 line of centerss and girder 10 also forms 1 little drift angle α, makes symmetrical parallel.
Cover winch 1 adopts the bearing 7 of differing heights, makes steel rope form alternative arrangement, and the running block 3 in each hoisting system of forming of each winch 1 is connected by connecting rod 4 simultaneously, makes that 3 of each running blocks are maintained fixed distance in this hoisting system; Avoided the interference problem between the steel rope of beam top,, both guaranteed easily that interior steel rope of girder and pulley drift angle meet the requirements, and can avoid interfering with each other between steel rope again simultaneously because this layout changes the locus of 5 of track adjusting wheel 2 and fixed pulley groups.Wherein to twine be that steel rope 6 comes out to arrive fixed pulley groups 5 through leading sheave 2 from winch 1 to the monovolume steel rope of raising system, arrive running block 3 again, between movable pulley and fixed pulley, twine repeatedly, be fixed at last on the fixed end 9 of girder pulley side decided at the higher level but not officially announced, no matter how suspension centre moves during use, phase mutual interference between the steel rope can not occur.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (5)
1, a kind of multiple hanging points crane hoisting wire rope space interference-resistant is arranged, comprise girder (10), running block (3), fixed pulley group (5) and winch (1), in the upper space of girder (10) upper cover plate leading sheave (2) is housed, the cover plate at two ends is provided with winch bearing (7) and is used for fixing winch (1), described steel rope (6) forms the steel cable area occupied between the live part of leading sheave (2) and winch (1), this area can characterize in order to two triangle △ ABC and the △ A ' B ' C ' of leading sheave (2) for drift angle, it is characterized in that described two triangles are along demarcation line I-I ' symmetry and arrange that in opposite directions demarcation line I-I ' constitutes little bias angle theta with the girder line of centers; Described girder (10) upper cover plate two ends are provided with 2 covers or the above winch (1) of 2 covers; The height difference of described each winch bearing (7), and the setting height(from bottom) of each leading sheave (2) is corresponding also different with the height of each winch bearing (7) with the position, and formed steel cable takies face not on same plane; Described two ends are respectively overlapped the reel vertical center line of winch (1) and the line of leading sheave (2) line of centers and the line of centers of girder (10) and are also formed 1 little drift angle α, be positioned at the drift angle direction unanimity that the same girder of each winch (1) (10) on the same end produces, and the winch at girder two ends is relative with the drift angle that girder forms; The steel rope (6) of described winch (1) along the upper space of girder (10) cover plate through a fixed guide pulley (2) from the list on the girder upper cover plate restrict out/hand-hole (8) enters on the girder assembly pulley decided at the higher level but not officially announced (5), be wound into then on the running block (3), between movable pulley and fixed pulley, twine repeatedly, be fixed at last on the fixed end (9) of fixed pulley group side on the girder.
2, multiple hanging points crane hoisting wire rope space interference-resistant according to claim 1 is arranged, it is characterized in that the scope of described little bias angle theta and little drift angle α is:
When L＞a/2,0 °＜θ＜90 °, α≤ζ,
Wherein: L is a reel length, and a is a girder upper cover plate width, and b is a girder upper cover plate length, and ζ is winch rope stretching drift angle.
3, multiple hanging points crane hoisting wire rope space interference-resistant according to claim 1 and 2 is arranged, it is characterized in that optimal case is that demarcation line I-I ' respectively overlaps winch (1) with described two ends reel vertical center line parallels with the line of leading sheave (2) line of centers, and little drift angle α equals little bias angle theta; Winch and leading sheave symmetric arrangement are respectively overlapped in two ends.
4, multiple hanging points crane hoisting wire rope space interference-resistant according to claim 1 is arranged, it is characterized in that the running block (3) in each hoisting system that described each winch (1) forms is connected by connecting rod (4).
5, multiple hanging points crane hoisting wire rope space interference-resistant according to claim 1 is arranged, it is characterized in that the winch bearing (7) on girder (10) two end cover plate holds stepped distribution, and the setting height(from bottom) of each leading sheave (2) is corresponding with the height of each winch bearing (7).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710011936A CN100581975C (en) | 2007-06-29 | 2007-06-29 | Space interference-resistant arrangement for multiple hanging points crane hoisting wire rope |
| PCT/CN2007/003426 WO2009003332A1 (en) | 2007-06-29 | 2007-12-03 | Wire rope space anti-interference arrangement for crane with multiple hoisting points |
| KR1020107001722A KR101115837B1 (en) | 2007-06-29 | 2007-12-03 | Wire rope space anti-interference arrangement for crane with multiple hoisting points |
| RU2010102937/11A RU2441833C2 (en) | 2007-06-29 | 2007-12-03 | Device for placing steel cables without interference in the crane with a set of points of suspension |
| JP2010513611A JP5426541B2 (en) | 2007-06-29 | 2007-12-03 | Method of preventing interference of sling wire rope in multiple suspension point crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710011936A CN100581975C (en) | 2007-06-29 | 2007-06-29 | Space interference-resistant arrangement for multiple hanging points crane hoisting wire rope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101085668A true CN101085668A (en) | 2007-12-12 |
| CN100581975C CN100581975C (en) | 2010-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710011936A Active CN100581975C (en) | 2007-06-29 | 2007-06-29 | Space interference-resistant arrangement for multiple hanging points crane hoisting wire rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100581975C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613057B (en) * | 2009-07-10 | 2011-10-12 | 大连华锐股份有限公司 | Hoisting mechanism of multi-lifting-point joint crane |
| CN103121627A (en) * | 2011-11-21 | 2013-05-29 | 江苏道达海上风电工程科技有限公司 | One-step type lifting system for wind power installation vessel and wind power installation vessel provided with same |
| CN103129837A (en) * | 2011-11-30 | 2013-06-05 | 江苏道达海上风电工程科技有限公司 | Protective device used for draught fan marine transportation and transportation installation system including the same |
| CN115180531A (en) * | 2022-07-29 | 2022-10-14 | 徐州建机工程机械有限公司 | Spatial layout structure for non-twisting of tower crane hoisting steel wire rope |
-
2007
- 2007-06-29 CN CN200710011936A patent/CN100581975C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613057B (en) * | 2009-07-10 | 2011-10-12 | 大连华锐股份有限公司 | Hoisting mechanism of multi-lifting-point joint crane |
| CN103121627A (en) * | 2011-11-21 | 2013-05-29 | 江苏道达海上风电工程科技有限公司 | One-step type lifting system for wind power installation vessel and wind power installation vessel provided with same |
| CN103121627B (en) * | 2011-11-21 | 2016-08-03 | 江苏道达风电设备科技有限公司 | For the single step tackling system of wind turbine installation vessel and the wind turbine installation vessel installing it |
| CN103129837A (en) * | 2011-11-30 | 2013-06-05 | 江苏道达海上风电工程科技有限公司 | Protective device used for draught fan marine transportation and transportation installation system including the same |
| CN115180531A (en) * | 2022-07-29 | 2022-10-14 | 徐州建机工程机械有限公司 | Spatial layout structure for non-twisting of tower crane hoisting steel wire rope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100581975C (en) | 2010-01-20 |
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Owner name: DALIAN HUARUI HEAVY INDUSTRY GROUP CO., LTD. Free format text: FORMER OWNER: HUARUI CO., LTD., DALIAN Effective date: 20120412 |
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Effective date of registration: 20120412 Address after: 116013 Bayi Road, Xigang District, Liaoning, China, No. 169, No. Patentee after: Dalian Huarui Heavy Industry Group Co., Ltd. Address before: 116013 Bayi Road, Xigang District, Liaoning, China, No. 169, No. Patentee before: Huarui Co., Ltd., Dalian |