CN107416547A - A kind of Anti-knocking method that ship unloaders cantilever girder is removed - Google Patents
A kind of Anti-knocking method that ship unloaders cantilever girder is removed Download PDFInfo
- Publication number
- CN107416547A CN107416547A CN201710367368.5A CN201710367368A CN107416547A CN 107416547 A CN107416547 A CN 107416547A CN 201710367368 A CN201710367368 A CN 201710367368A CN 107416547 A CN107416547 A CN 107416547A
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- China
- Prior art keywords
- pressing plate
- anticollision
- ship unloaders
- cantilever
- cantilever girder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/60—Loading or unloading ships
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- Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Ship Loading And Unloading (AREA)
Abstract
The invention provides a kind of Anti-knocking method removed for ship unloaders cantilever girder, it is characterised in that including：Step S1, make anticollision pressing plate；Step S2, anticollision pressing plate is welded on ship unloaders cantilever girder, anticollision pressing plate does not weld with crossbeam in ship unloaders cantilever, when cantilever girder hinge blocks, because impulsive force caused by under Action of Gravity Field is by anticollision pressing plate, is delivered to crossbeam in cantilever step by step.When method proposed by the present invention can prevent and slow down that ship unloaders cantilever girder departs from crossbeam in body, because lifting weight is loaded into crane barge ceiling mounted arm suddenly, cause Hull sinkage (or ceiling mounted arm amount of deflection is excessive) and ship unloaders cantilever girder to reverberate impact ship unloaders body, safety occur and lift situation out of control.
Description
Technical field
The present invention relates to port mechanical equipment Demolition Construction field, specially a kind of erosion control of ship unloaders cantilever girder dismounting
Hit method.
Background technology
At present, grab type ship unloaders are the main ship unloading equipments of current bulk cargo harbour, and number is distributed in inland river with Wan Taiji
And coastal dock.With ship unloaders frequency of use and working condition, it will there is steel construction corrosion, cantilever girder amount of deflection is exceeded,
Crackle, whole set equipment deterioration occur for the main bearing members such as the big diagonal brace of crossbeam, doorframe, and security performance does not ensure that it uses the longevity
Life is typically between 20-25；Due to technological progress, harbour bulk cargo ship unloading equipment is also progressively by more efficient, and energy consumption is lower, operation
The more environmentally friendly continous way ship unloaders substitution of process；So eliminating the Demolition Construction of ship unloaders, there is the very big market demand every year.
The cantilever girder of ship unloaders, weight about 110t；It is big in generally box shape steel structure, cantilever girder and ship unloaders body
Liang Jian, connected using hinges, beam top steel rail laying road, feeding is come and gone for feeding dolly；In cantilever girder outboard end
At upper tower frame cross beam, pull bar and steel wire rope are installed, pull bar is to decompose cantilever beam stress, and steel wire rope has been then pitching cantilever
With；Cantilever girder stretches out harbour edge 30-48m, is lifted and removed using 1000t crane barges, if could not handle well when pull bar blocks
Recovery impact and cantilever girder depart from impulsive force during ship unloaders body, then pull bar or cantilever girder may be caused to collide ship unloaders
Body, because ship unloaders are mounted on harbour track, its anti-side face impact capacity is very weak, it is possible to causes ship unloaders to tumble
Or remove personnel and drop, so then removed to dock safety, cause huge hidden danger.
When known ship unloaders are removed, to prevent cantilever girder from crossing large impact ship unloaders body, in advance in ship unloaders hinge
The middle crossbeam box beam steel plate lower weld steel supporting plate at place, when gas cutting disconnects cantilever girder at hinge, crane barge arm stress
Downwarp, cantilever girder moment are fallen to be placed in bottom bracket, and its downward weight is temporarily born by supporting plate and laterally reverberates impulsive force,
Impact to ship unloaders body is slowed down with this.The 1/2 of the pallet length is faced upward vertical welding and is connected on middle crossbeam box beam lower steel plate,
Another 1/2 stretches into cantilever beam bottom across hinge, and the weight and impulsive force born due to the supporting plate are larger, and its specification is generally 500*
200*25, per 3 pieces of side box beam, the overhead welding operation of supporting steel supporting plate is very difficult, and welding quality is difficult to ensure that, and need to be in middle crossbeam
Welding operating platform (its underpart height about 30m) of encorbelmenting is set up in bottom, and it is all extremely dangerous to set up and remove the platform, safety no
To guarantee.So, it is known that technology inconvenience be present, installation and welding anticollision supporting plate, left greatly to operating personnel
Potential safety hazard.
The content of the invention
In consideration of it, the present invention proposes a kind of Anti-knocking method removed for ship unloaders cantilever girder, it is intended in solution
State problem.
The present invention proposes a kind of Anti-knocking method removed for ship unloaders cantilever girder, it is characterised in that including：
Step S1, make anticollision pressing plate；
Step S2, welds anticollision pressing plate on ship unloaders cantilever girder, and anticollision pressing plate does not weld with crossbeam in ship unloaders cantilever
Connect, when cantilever girder hinge blocks, because impulsive force caused by under Action of Gravity Field is by anticollision pressing plate, be delivered to step by step in cantilever big
Beam.
Further, in the above-mentioned Anti-knocking method removed for ship unloaders cantilever girder, it is characterised in that with Q235 heat
Rolled steel plate makes anticollision pressing plate；At the middle part of anticollision pressing plate, a certain size groove is set, and the design of anticollision pressing plate end is in default
The inclined-plane of angle, pressing plate horizontal plane set the rounding of predefined size radius with inclined-plane intersection.
Further, in the above-mentioned Anti-knocking method removed for ship unloaders cantilever girder, it is characterised in that during installation,
To the anticollision pressing plate both sides that need to be welded, double V-groove is set, by its full weld on the steel plate of cantilever girder box beam top, and made recessed
Groove is located at the gas cutting boundary of cantilever girder and middle crossbeam.
Further, the anticollision pressing plate specification is 450mm*200mm*20~25mm；At the middle part of anticollision pressing plate, groove walls
Face is semicircle, and semicircle radius 25mm, weld length 175mm, inclined-plane predetermined angle is 30 degree, rounding radii 150mm.
Further, it is above-mentioned for ship unloaders cantilever girder remove Anti-knocking method in, it is characterised in that middle crossbeam with
Anticollision pressing plate has a certain size gap.
Further, in the above-mentioned Anti-knocking method removed for ship unloaders cantilever girder, it is characterised in that the gap
Size is 5mm.
Beneficial effects of the present invention：Unique design and welding position due to anticollision pressing plate, effectively it can prevent and slow down
When ship unloaders cantilever girder departs from crossbeam in body, because lifting weight is loaded into crane barge ceiling mounted arm suddenly, cause under hull
Heavy (or ceiling mounted arm amount of deflection is excessive) and ship unloaders cantilever girder reverberate impact ship unloaders body, safety occur and lift feelings out of control
Condition.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is front view of the embodiment of the present invention
Fig. 2 is anticollision pressing plate of the embodiment of the present invention
Fig. 3 is ship unloaders of the embodiment of the present invention
Wherein：1. the gravity of 2. ship unloaders of anticollision pressing plate, 101. cantilever girder welding section, 102. hinge gas cutting section 103. delays
Rush the cantilever girder of 104. impulsive force breeze way (fillet) of section 105. impulsive force breeze way (inclined-plane) 106. soldered 201.
The track of 205. 206. reinforced concrete ground of column door leg of crossbeam 207. is walked in the cantilever of 202. front tension bar, 203. pitching hinge 204.
Wheel
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the case where not conflicting, embodiment in the present invention and
Feature in embodiment can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Baosteel Raw Material Wharf 18U3 ship unloaders are the double cantilever bulk cargo ship unloaders of grab type, and extra large side crossbeam is cantilever girder 201
(weight：110t, box beam specification：44*10*2.2m) and the big girder cantilever in land side in the (weight of crossbeam 204：90t, box beam specification：
34*11*2.2m) absolute altitude is 31m, is connected by hinge with crossbeam body in ship unloaders.
Step S1 in implementation, make anticollision pressing plate 1；Step S2, anticollision pressing plate is welded on ship unloaders cantilever girder 201,
Anticollision pressing plate does not weld with crossbeam 204 in ship unloaders cantilever, when cantilever girder hinge blocks, because of impact caused by under Action of Gravity Field
Power is delivered to crossbeam in cantilever step by step by anticollision pressing plate.
Anticollision pressing plate is made with Q235 hot rolled steel plates；At the middle part of anticollision pressing plate, a certain size groove is set, groove
Setting is for the ease of gas cutting hinge, and in the inclined-plane of predetermined angle, pressing plate horizontal plane and inclined-plane have a common boundary the design of anticollision pressing plate end
Place sets the rounding of predefined size radius.Here the wall of groove is arranged to semicircle.
During installation, to the anticollision pressing plate both sides that need to be welded, double V-groove is set, by its full weld in cantilever girder box beam
On portion's steel plate, semicircle is located at the gas cutting boundary of cantilever girder and middle crossbeam.
Ship unloaders cantilever beam is the tower box beam of doorframe, at the top of every box beam of cantilever girder on steel plate, by box beam
Center line both sides 300mm at (can factually adjust distance), be symmetrically welded installation two pieces of anticollision pressing plates, extra large side crossbeam include two
Cantilever box beam, so 4 pieces of anticollision pressing plates need to be welded altogether.
The anticollision pressing plate specification is 450mm*200mm*20~25mm；At the middle part of anticollision pressing plate, semicircle radius 25mm, weldering
Spreading degree 175mm, inclined-plane predetermined angle are 30 degree, rounding radii 150mm.
Middle crossbeam has a certain size gap with anticollision pressing plate, and the gap length is 5mm.
My company in 2016, successfully using the inventive technique of anticollision pressing plate, is hung in the project is removed using 1200t crane barges
Assembly and disassembly remove ship unloaders sea side and land side cantilever beam, not only safe but also steady, caused controllable to ship unloaders body impulsive force.
Anticollision pressing plate is to reach the purpose for slowing down impulsive force in the following way：
1. cantilever girder hinge blocks, its downward weight impulsive force, by being welded on its cantilever box beam upper steel
Anticollision pressing plate on plate, it is delivered in ship unloaders body on crossbeam (vertical stress)；
2. top anticollision pressing plate is unwelded at crossbeam in, and has 5mm gaps (anticollision pressing plate this at height h=195mm), by
Therebetween gap is small slows down without big impact, one-level；
3. at anticollision pressing plate end L4=100mm, 30 ° of oblique angles are designed, transition position rounding radii r=50mm, so may be used
Slow down speed when cantilever girder departs from hinge, impulsive force is reverberated in decomposition, and two level slows down (at fillet), and three-level slows down (30 ° of oblique angles
Place).
The present invention in force, unique design and welding position due to anticollision pressing plate, can effectively prevent from and slow down to unload
When ship machine sea side, land side cantilever girder depart from crossbeam in body, because lifting weight is loaded into crane barge ceiling mounted arm suddenly, cause
Hull sinkage (or ceiling mounted arm amount of deflection is excessive) and ship unloaders cantilever girder reverberate impact ship unloaders body, safety occur and lifting is lost
The situation of control.
The Anti-knocking method of this invention, it can also be used in the installation and Demolition Construction of large-scale overhanging steel structure.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (6)
- A kind of 1. Anti-knocking method removed for ship unloaders cantilever girder, it is characterised in that including：Step S1, make anticollision pressing plate；Step S2, anticollision pressing plate is welded on ship unloaders cantilever girder, anticollision pressing plate does not weld with crossbeam in ship unloaders cantilever, hangs When arm crossbeam hinge blocks, because impulsive force caused by under Action of Gravity Field is by anticollision pressing plate, crossbeam in cantilever is delivered to step by step.
- 2. according in the Anti-knocking method for being used for ship unloaders cantilever girder and removing described in claim 1, it is characterised in that use Q235 hot rolled steel plates make anticollision pressing plate；At the middle part of anticollision pressing plate, a certain size groove, the design of anticollision pressing plate end are set In the inclined-plane of predetermined angle, pressing plate horizontal plane sets the rounding of predefined size radius with inclined-plane intersection.
- 3. according in the Anti-knocking method for being used for ship unloaders cantilever girder and removing described in claim 1, it is characterised in that installation When, to the anticollision pressing plate both sides that need to be welded, double V-groove is set, by its full weld on the steel plate of cantilever girder box beam top, and made Groove is located at the gas cutting boundary of cantilever girder and middle crossbeam.
- 4. according to being used in the Anti-knocking method of ship unloaders cantilever girder dismounting described in claim 1, the anticollision pressing plate specification For 450mm*200mm*20~25mm；At the middle part of anticollision pressing plate, groove wall is semicircle, semicircle radius 25mm, welds length 175mm is spent, inclined-plane predetermined angle is 30 degree, rounding radii 150mm.
- 5. according in the Anti-knocking method for being used for ship unloaders cantilever girder and removing described in claim 1, it is characterised in that in it is big Beam has a certain size gap with anticollision pressing plate.
- 6. according in the Anti-knocking method for being used for ship unloaders cantilever girder and removing described in claim 1, it is characterised in that described Gap length is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710367368.5A CN107416547B (en) | 2017-05-23 | 2017-05-23 | Anti-collision method for dismantling cantilever girder of ship unloader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710367368.5A CN107416547B (en) | 2017-05-23 | 2017-05-23 | Anti-collision method for dismantling cantilever girder of ship unloader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107416547A true CN107416547A (en) | 2017-12-01 |
| CN107416547B CN107416547B (en) | 2020-02-28 |
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ID=60427991
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710367368.5A Active CN107416547B (en) | 2017-05-23 | 2017-05-23 | Anti-collision method for dismantling cantilever girder of ship unloader |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5971177A (en) * | 1998-04-09 | 1999-10-26 | Carter; E. Dan | Pickup crane |
| JP2001200653A (en) * | 2000-01-19 | 2001-07-27 | Shimizu Corp | Seismic controlling building |
| CN2717910Y (en) * | 2004-07-23 | 2005-08-17 | 傅国华 | Crane main girder capable of restoring upper camber |
| CN102556853A (en) * | 2011-12-31 | 2012-07-11 | 攀钢集团工程技术有限公司 | Metallurgical crane dismantling method |
| CN103058070A (en) * | 2012-12-28 | 2013-04-24 | 徐州重型机械有限公司 | An introducing beam and a tower crane |
| CN203740851U (en) * | 2013-10-28 | 2014-07-30 | 中船华南船舶机械有限公司 | Detachable lifting beam |
| CN104192579A (en) * | 2014-08-20 | 2014-12-10 | 东北大学 | Method for replacing material taking machine jackstay and material taking machine jackstay used for method |
| CN105905810A (en) * | 2016-06-28 | 2016-08-31 | 青岛海西重机有限责任公司 | Safety device of ship unloader cab |
| CN106477350A (en) * | 2015-08-31 | 2017-03-08 | 中冶宝钢技术服务有限公司 | The method for dismounting of bridge ship loader-unloader |
-
2017
- 2017-05-23 CN CN201710367368.5A patent/CN107416547B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5971177A (en) * | 1998-04-09 | 1999-10-26 | Carter; E. Dan | Pickup crane |
| JP2001200653A (en) * | 2000-01-19 | 2001-07-27 | Shimizu Corp | Seismic controlling building |
| CN2717910Y (en) * | 2004-07-23 | 2005-08-17 | 傅国华 | Crane main girder capable of restoring upper camber |
| CN102556853A (en) * | 2011-12-31 | 2012-07-11 | 攀钢集团工程技术有限公司 | Metallurgical crane dismantling method |
| CN103058070A (en) * | 2012-12-28 | 2013-04-24 | 徐州重型机械有限公司 | An introducing beam and a tower crane |
| CN203740851U (en) * | 2013-10-28 | 2014-07-30 | 中船华南船舶机械有限公司 | Detachable lifting beam |
| CN104192579A (en) * | 2014-08-20 | 2014-12-10 | 东北大学 | Method for replacing material taking machine jackstay and material taking machine jackstay used for method |
| CN106477350A (en) * | 2015-08-31 | 2017-03-08 | 中冶宝钢技术服务有限公司 | The method for dismounting of bridge ship loader-unloader |
| CN105905810A (en) * | 2016-06-28 | 2016-08-31 | 青岛海西重机有限责任公司 | Safety device of ship unloader cab |
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|---|---|
| CN107416547B (en) | 2020-02-28 |
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