CN108975181A - A kind of method for dismounting of derrick crane - Google Patents

A kind of method for dismounting of derrick crane Download PDF

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Publication number
CN108975181A
CN108975181A CN201810931156.XA CN201810931156A CN108975181A CN 108975181 A CN108975181 A CN 108975181A CN 201810931156 A CN201810931156 A CN 201810931156A CN 108975181 A CN108975181 A CN 108975181A
Authority
CN
China
Prior art keywords
crane
jib
counter
dismounting
slowly
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.)
Pending
Application number
CN201810931156.XA
Other languages
Chinese (zh)
Inventor
刘月生
赵健
徐辉
章浙黔
何锋
董磊
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.)
Powerchina Guizhou Electric Power Design and Research Institute Co Ltd
Original Assignee
Powerchina Guizhou Electric Power Design and Research Institute Co 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 Powerchina Guizhou Electric Power Design and Research Institute Co Ltd filed Critical Powerchina Guizhou Electric Power Design and Research Institute Co Ltd
Priority to CN201810931156.XA priority Critical patent/CN108975181A/en
Publication of CN108975181A publication Critical patent/CN108975181A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/04Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details

Abstract

The invention discloses a kind of method for dismounting of derrick crane, the step of construction are as follows: one, first remaining 3 standard knots from more than drop standard knot to ground;Two, hoist rope is released, suspension hook is removed;Three, part counterweight, remaining 1 piece of counterweight are removed;Four, tower crane crane arm is removed;Five, the 1 piece of counterweight retained is removed;Six, counter-jib is removed;Seven, tower top is removed;Eight, rotating assembly is removed;Nine, jacking stock is removed;Ten, standard knot is gradually removed.By using technical solution of the present invention, the efficiency of disassembly can be substantially increased, eliminates security risk, while ensure that the disassembly quality of derrick crane, machine will not be damaged, construction cost is saved for enterprise, achieves good using effect.

Description

A kind of method for dismounting of derrick crane
Technical field
The present invention relates to a kind of derrick crane more particularly to a kind of method for dismounting of derrick crane, belong to crane Tool equipment technical field.
Background technique
Derrick crane is the revolving crane that swing arm is mounted in towering tower body top.Working range is big, is mainly used for multilayer It is installed with the vertical transport and component of material in high-building construction.By metal structure, operating mechanism and electrical system three parts Composition.Metal structure includes tower body, swing arm, pedestal, Anchored Bar etc..There are raising, luffing, revolution and walking four in operating mechanism Point.Electrical system includes motor, controller, power distribution frame, connection connecting lines, signal and lighting device etc..Derrick crane is a large amount of Applied to construction site, but after constructing, needs to dismantle carrying and remove next building site, it is how safe and efficient to tower Formula crane is removed, this is existing current problem to be solved.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of method for dismounting of derrick crane, carried out using this method Operation, can substantially increase the efficiency of disassembly, eliminate security risk, while ensure that the disassembly quality of derrick crane, Machine will not be damaged, the above-mentioned problem of effective solution.
The technical solution of the present invention is as follows: a kind of method for dismounting of derrick crane, the step of construction are as follows: one, first from drop mark More than quasi- section to ground remaining 3 standard knots;Two, hoist rope is released, suspension hook is removed;Three, part counterweight, residue 1 are removed Block counterweight;Four, tower crane crane arm is removed;Five, the 1 piece of counterweight retained is removed;Six, counter-jib is removed;Seven, tower top is removed;Eight, it tears open Except rotating assembly;Nine, jacking stock is removed;Ten, standard knot is gradually removed.
In the step 2, suspension hook is placed into ground, removes cover of wedge, wire rope roll is wound on the reel of master winch;It will Amplitude variation trolley is run to the root of crane arm, and pulley blocks are fixed on amplitude variation trolley in the following, unclamping crane arm end with rope Cover of wedge and wirerope anti-twist device, by hoist rope on hoisting drum or on drum.
In the step 3, lower tower crane counterweight is hung with crane block-by-block, finally reserves one piece.
In the step 6, when dismantling counter-jib, counter-jib is returned back to by truck crane direction, in counter-jib arm end and arm Root is respectively that a tightrope to be oriented to from relief surface is laid flat counter-jib, removes the connection pivot pin of counter-jib, is in counter-jib It after equilibrium state, slowly slings, drops to ground slowly.
In the step 7, tower cap is first removed, driver's cabin is removed afterwards, hoist cable is passed around into the hanging ring on tower cap top-rear side It is interior, the connection pin shaft being connected with support is removed, is slowly lifted, is detached from tower cap from the fish platee of support, is then declined slowly To ground.
In the step 8, hoist cable is passed around in the hanging ring of upper bracket, removes and connects the connection being connected with standard with support Pivot pin slowly lifts, and is detached from the undersetting of swing mechanism from the fish platee of lower part standard knot, then drops to ground slowly Face.
In the step 9, hoist cable is passed around on the fish platee pin hole of jacking stock, then which is sling Slowly ground is dropped to.
In the step 10, hoist cable is passed around on the angle of four, standard knot top;Standard knot and lower section standard knot will be hung The high-strength bolt of connection is removed;The standard knot is sling and then drops to ground slowly;Successively remaining standard knot is all removed.
The beneficial effects of the present invention are: compared with prior art, using technical solution of the present invention, can substantially increase The efficiency of disassembly eliminates security risk, while ensure that the disassembly quality of derrick crane, will not damage machine, is enterprise Construction cost is saved, good using effect is achieved.
Detailed description of the invention
Fig. 1 is schematic diagram one of the present invention;
Fig. 2 is schematic diagram two of the present invention;
Fig. 3 is schematic diagram three of the present invention;
Fig. 4 is schematic diagram four of the present invention;
Fig. 5 is schematic diagram five of the present invention;
Fig. 6 is schematic diagram six of the present invention;
Fig. 7 is schematic diagram seven of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below with reference to this specification attached drawing to this hair It is bright to be described in further detail.
Embodiment 1: as shown in attached drawing 1~7, the step of a kind of method for dismounting of derrick crane, construction are as follows: one, first from Remaining 3 standard knots of standard knot to ground or more drop;Two, hoist rope is released, suspension hook is removed;Three, part counterweight is removed, is remained Remaining 1 piece of counterweight;Four, tower crane crane arm is removed;Five, the 1 piece of counterweight retained is removed;Six, counter-jib is removed;Seven, tower top is removed; Eight, rotating assembly is removed;Nine, jacking stock is removed;Ten, standard knot is gradually removed.
In the step 2, suspension hook is placed into ground, removes cover of wedge, wire rope roll is wound on the reel of master winch;It will Amplitude variation trolley is run to the root of crane arm, and pulley blocks are fixed on amplitude variation trolley in the following, unclamping crane arm end with rope Cover of wedge and wirerope anti-twist device, by hoist rope on hoisting drum or on drum.
In the step 3, lower tower crane counterweight is hung with crane block-by-block, finally reserves one piece.
In the step 6, when dismantling counter-jib, counter-jib is returned back to by truck crane direction, in counter-jib arm end and arm Root is respectively that a tightrope to be oriented to from relief surface is laid flat counter-jib, removes the connection pivot pin of counter-jib, is in counter-jib It after equilibrium state, slowly slings, drops to ground slowly.
In the step 7, tower cap is first removed, driver's cabin is removed afterwards, hoist cable is passed around into the hanging ring on tower cap top-rear side It is interior, the connection pin shaft being connected with support is removed, is slowly lifted, is detached from tower cap from the fish platee of support, is then declined slowly To ground.
In the step 8, hoist cable is passed around in the hanging ring of upper bracket, removes and connects the connection being connected with standard with support Pivot pin slowly lifts, and is detached from the undersetting of swing mechanism from the fish platee of lower part standard knot, then drops to ground slowly Face.
In the step 9, hoist cable is passed around on the fish platee pin hole of jacking stock, then which is sling Slowly ground is dropped to.
In the step 10, hoist cable is passed around on the angle of four, standard knot top;Standard knot and lower section standard knot will be hung The high-strength bolt of connection is removed;The standard knot is sling and then drops to ground slowly;Successively remaining standard knot is all removed.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art of the present technique.Finally, it is stated that the above reality It applies example to be only used to illustrate the technical scheme of the present invention and not to limit it, although having carried out specifically the present invention referring to preferred embodiment It is bright, those skilled in the art should understand that, can with modification or equivalent replacement of the technical solution of the present invention are made, and The objective and range for not departing from technical solution of the present invention, are intended to be within the scope of the claims of the invention.

Claims (7)

1. a kind of method for dismounting of derrick crane, it is characterised in that: the step of construction are as follows: one, first from drop standard knot to ground Above remaining 3 standard knots;Two, hoist rope is released, suspension hook is removed;Three, part counterweight, remaining 1 piece of counterweight are removed;Four, Remove tower crane crane arm;Five, the 1 piece of counterweight retained is removed;Six, counter-jib is removed;Seven, tower top is removed;Eight, it is total to remove revolution At;Nine, jacking stock is removed;Ten, standard knot is gradually removed.
2. a kind of method for dismounting of derrick crane according to claim 1, it is characterised in that:, will in the step 2 Suspension hook places ground, removes cover of wedge, wire rope roll is wound on the reel of master winch;Amplitude variation trolley is run to the root of crane arm Pulley blocks are fixed on amplitude variation trolley in the following, the cover of wedge and wirerope anti-twist device of crane arm end are unclamped, by raising with rope by portion Wire rope roll is wound on hoisting drum or on drum.
3. a kind of method for dismounting of derrick crane according to claim 1, it is characterised in that: in the step 3, use Crane block-by-block hangs lower tower crane counterweight, finally reserves one piece.
4. a kind of method for dismounting of derrick crane according to claim 1, it is characterised in that: in the step 6, When dismantling counter-jib, counter-jib is returned back to by truck crane direction, is respectively a tightrope at counter-jib arm end and arm roots, so as to from tearing open Face guiding is unloaded, counter-jib is laid flat, removes the connection pivot pin of counter-jib, after so that counter-jib is in equilibrium state, slowly sling, slowly Drop to ground.
5. a kind of method for dismounting of derrick crane according to claim 1, it is characterised in that: in the step 7, first Tower cap is removed, driver's cabin is removed afterwards, hoist cable is passed around in the hanging ring on tower cap top-rear side, the connection being connected with support is removed Pin shaft slowly lifts, and is detached from tower cap from the fish platee of support, then drops to ground slowly.
6. a kind of method for dismounting of derrick crane according to claim 1, it is characterised in that:, will in the step 8 Hoist cable passes around in the hanging ring of upper bracket, removes the connection pivot pin for connecing and being connected with standard with support, slowly lifts, make swing mechanism Undersetting be detached from from the fish platee of lower part standard knot, then drop to ground slowly.
7. a kind of method for dismounting of derrick crane according to claim 1, it is characterised in that:, will in the step 9 Hoist cable passes around on the fish platee pin hole of jacking stock, which is sling and then drops to ground slowly.
CN201810931156.XA 2018-08-15 2018-08-15 A kind of method for dismounting of derrick crane Pending CN108975181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810931156.XA CN108975181A (en) 2018-08-15 2018-08-15 A kind of method for dismounting of derrick crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810931156.XA CN108975181A (en) 2018-08-15 2018-08-15 A kind of method for dismounting of derrick crane

Publications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111232849A (en) * 2020-01-20 2020-06-05 中国十七冶集团有限公司 Tower crane dismantling method
CN111533005A (en) * 2020-04-17 2020-08-14 中国化学工程第三建设有限公司 Method for disassembling large tower crane arm rod by using small tower crane

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659678A1 (en) * 1993-12-27 1995-06-28 Liebherr-Werk Biberach GmbH Tower crane
CN101337642A (en) * 2007-07-02 2009-01-07 湖南省第六工程有限公司 Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof
CN201214598Y (en) * 2008-06-02 2009-04-01 国网北京电力建设研究院 Column crane special for movable arm type tower erection
CN105110205A (en) * 2015-09-29 2015-12-02 中建二局第二建筑工程有限公司深圳分公司 Reverse disassembling method for tower crane
CN107758525A (en) * 2016-08-19 2018-03-06 张鹏 A kind of method that dismounting security is improved when removing tower crane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659678A1 (en) * 1993-12-27 1995-06-28 Liebherr-Werk Biberach GmbH Tower crane
CN101337642A (en) * 2007-07-02 2009-01-07 湖南省第六工程有限公司 Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof
CN201214598Y (en) * 2008-06-02 2009-04-01 国网北京电力建设研究院 Column crane special for movable arm type tower erection
CN105110205A (en) * 2015-09-29 2015-12-02 中建二局第二建筑工程有限公司深圳分公司 Reverse disassembling method for tower crane
CN107758525A (en) * 2016-08-19 2018-03-06 张鹏 A kind of method that dismounting security is improved when removing tower crane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111232849A (en) * 2020-01-20 2020-06-05 中国十七冶集团有限公司 Tower crane dismantling method
CN111533005A (en) * 2020-04-17 2020-08-14 中国化学工程第三建设有限公司 Method for disassembling large tower crane arm rod by using small tower crane

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Application publication date: 20181211