CN102922280A - Mounting method of tower crane boom and auxiliary mounting pull rod applied by tower crane boom - Google Patents

Mounting method of tower crane boom and auxiliary mounting pull rod applied by tower crane boom Download PDF

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Publication number
CN102922280A
CN102922280A CN2012104606238A CN201210460623A CN102922280A CN 102922280 A CN102922280 A CN 102922280A CN 2012104606238 A CN2012104606238 A CN 2012104606238A CN 201210460623 A CN201210460623 A CN 201210460623A CN 102922280 A CN102922280 A CN 102922280A
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CN
China
Prior art keywords
pull bar
crane arm
connecting portion
sections
auxiliary installation
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CN2012104606238A
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CN102922280B (en
Inventor
阳云华
李桂芳
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Zoomlion Heavy Industry Science and Technology Co Ltd
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Zoomlion Heavy Industry Science and Technology Co Ltd
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Priority to CN201210460623.8A priority Critical patent/CN102922280B/en
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Abstract

The invention provides a mounting method of a tower crane boom and an auxiliary mounting pull rod applied by the tower crane boom. The auxiliary mounting pull rod is used for temporarily pulling and hanging the crane boom on a balance arm or/and a rotating platform in the mounting process of a tower crane and comprises a tension state and a loose state; in the tension state, the auxiliary mounting pull rod is tensioned between the crane boom and the balance arm or/the rotating platform to temporarily pull the crane boom; and in the loose state, the auxiliary mounting pull rod is loosely connected between the crane boom and the balance arm or/and the rotating platform.

Description

The auxiliary installation pull bar of derrick runway girder installation method and application thereof
Technical field
The present invention relates to the derrick runway girder installing area, and particularly about the auxiliary installation pull bar of a kind of derrick runway girder installation method and application thereof.
Background technology
In recent years, along with building trade develops in depth, building tower crane (being called for short the tower machine) is widely used.Promoting the use of of tower machine changed construction vertically and the means of transportation of level gradually, for operating personnel have created safe operating condition, also improved operating efficiency simultaneously.
When whole tower machine is installed, all parts is assembled on ground, with crane gear all parts is finished assembling aloft again.Because the relative miscellaneous part of crane arm, size is large, and quality is heavy, and the quality according to crane arm when the tower machine is installed is selected hanging device.
General existing derrick runway girder installation method may further comprise the steps:
1, is installed on the crane arm at ground assembling crane arm, and with crane arm pull bar, loading trolley, jib lubbing mechanism etc.;
2, with suitable crane gear lifting crane arm;
3, crane arm is installed to the relevant position, and is connected with bearing pin;
4, the crane arm pull bar is connected with support;
5, the counter-jib pull bar is connected with support, then crane arm is progressively transferred, make the crane arm pull bar stressed, last loose hook, crane arm installs.
But whole crane arm assembles on ground, needs large assembly unit place, and especially for ultra-large type tower machine, jib length reaches 80 meters or longer, and when installing for narrow construction site or the water surface, can't provide the assembly unit place.In addition, crane arm, crane arm pull bar, loading trolley etc., quality is heavy, and especially for ultra-large type tower machine, quality reaches more than 70 tons, and setting height(from bottom) is the highest basically, needs the large crane gear of elevating capacity, and installation cost is high; This type of crane gear also needs enough places in addition, and in narrow job site, large crane gear also can't be used.
Summary of the invention
The invention provides a kind of auxiliary installation pull bar of derrick runway girder, install with auxiliary crane arm segmentation, the crane gear that available elevating capacity is little is finished that crane arm is installed or is removed, and reduces installation cost, and reduces in the crane arm installation process requirement to place, space.
In addition, the present invention also provides a kind of derrick runway girder installation method, adopts above-mentioned auxiliary installation pull bar that crane arm is carried out segmentation and installs.
For reaching above-mentioned advantage, the invention provides a kind of auxiliary installation pull bar of derrick runway girder, be hung on counter-jib or/and revolving dial in tower machine installation process described crane arm is drawn temporarily; Described auxiliary installation pull bar comprises tension and relaxed state, in described tension, described auxiliary installation pull bar be tightened in described crane arm and counter-jib or/and between the revolving dial with the described crane arm of interim pulling, under described relaxed state, described auxiliary installation pull bar loosely is connected in described crane arm and counter-jib or/and between the revolving dial.
In one embodiment of the invention, described auxiliary installation pull bar comprises the first segment unit, and at least one end of described first segment unit is provided with mounting hole, is equipped with bearing pin in the described mounting hole, and described bearing pin can slide in described mounting hole.
In one embodiment of the invention, described auxiliary installation pull bar also comprises the second section unit, and described first segment unit and described second section unit join end to end by described bearing pin.
In one embodiment of the invention, described first segment unit comprises stock and is positioned at the first connecting portion and second connecting portion of stock two ends, described second section unit comprises stock and is positioned at the first connecting portion and second connecting portion of stock two ends, the second connecting portion of the second connecting portion of described first segment unit and described second section unit links together, the first connecting portion of described first segment unit is used for being connected with the crane arm of tower machine, and the first connecting portion of described second section unit is used for being connected with the counter-jib of tower machine.
In one embodiment of the invention, the second connecting portion of described first segment unit is provided with described mounting hole, and the second connecting portion of described second section unit is provided with circular hole, and described bearing pin wears described circular hole and is fixed in the described circular hole.
In one embodiment of the invention, the first connecting portion of described first segment unit is provided with circular hole, and the first connecting portion of described first segment unit is fixedly connected with described crane arm by bearing pin; The first connecting portion of described second section unit is provided with circular hole, and the first connecting portion of described second section unit is fixedly connected with described counter-jib by bearing pin.
In one embodiment of the invention, described first segment unit comprises stock and is positioned at the first connecting portion and second connecting portion of stock two ends, described the first connecting portion is used for being connected with the crane arm of tower machine, described the second connecting portion is used for being connected with the counter-jib of tower machine, one of them is provided with described mounting hole described the first connecting portion and the second connecting portion, and wherein another of described the first connecting portion and the second connecting portion is provided with circular hole.
The present invention also provides a kind of derrick runway girder installation method, comprises step:
Crane arm the first sections is winched to the relevant position, and the lower end of described crane arm the first sections is connected in the first hinge pivot with the revolving dial of tower machine;
The auxiliary end that pull bar is installed is connected with crane arm the first sections, and the other end of auxiliary installation pull bar or/and revolving dial is connected, then puts down suspension hook with counter-jib, and described auxiliary installation pull bar is tension;
The first pull bar is connected between support and described crane arm the first sections;
If crane arm also has other sections, then lift other sections of crane arm, namely other sections of crane arm is sling successively and installed and be connected on the last sections of adjacent crane arm, and the corresponding pull bar of other sections of crane arm is connected between described support and other sections of crane arm;
Described crane arm is rotated around described the first hinge, the counter-jib pull bar is connected on described support and the described counter-jib;
Described crane arm is put down naturally, and the corresponding pull bar tensioning of described the first pull bar and described other sections of crane arm is to hold described crane arm, and described auxiliary installation pull bar is relaxed state.
Compare prior art, the auxiliary installation pull bar of derrick runway girder installation method of the present invention and application thereof, in installation process, the auxiliary pull bar of installing connects crane arm the first sections peace weighing apparatus arm, make other member of crane arm the first sections and tower machine realize being rigidly connected, thereby can install the implementation segmentation of long crane arm, reduce in the crane arm installation process requirement to place, space; Adopt the Combination Design of mounting hole and bearing pin, crane arm is finished after the installation a little toward upwarping, and by the relatively bending of two members that mounting hole is connected with bearing pin, assists the installation pull bar not stress thereby make, and does not affect the operation of crane arm; In addition, because the auxiliary effect that pull bar is installed, crane arm can also be realized the segmentation dismounting, and auxiliary the installation can also recycle after pull bar is removed.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is tower machine complete machine structure schematic diagram.
Fig. 2 A is the front schematic view of the auxiliary installation pull bar of preferred embodiment derrick runway girder of the present invention.
Fig. 2 B is the auxiliary side schematic view that pull bar is installed.
Fig. 2 C is the auxiliary front schematic view that the first segment unit of pull bar is installed.
Fig. 2 D is the auxiliary side schematic view that the first segment unit of pull bar is installed.
Fig. 2 E is the auxiliary front schematic view that the second section unit of pull bar is installed.
Fig. 2 F is the auxiliary side schematic view that the second section unit of pull bar is installed.
Fig. 3 A is crane arm the first sections that assembles.
Fig. 3 B is crane arm the second sections that assembles.
Fig. 3 C is crane arm the 3rd sections that assembles.
Fig. 4 is the schematic diagram that crane arm the first sections is installed.
Fig. 5 is the schematic diagram that crane arm the second sections is installed.
Fig. 6 is the schematic diagram that crane arm the 3rd sections is installed.
Fig. 7 is the enlarged drawing of VII circle part among Fig. 1.
The specific embodiment
Derrick runway girder installation method of the present invention is used the auxiliary pull bar of installing crane arm is carried out the segmentation installation.Please refer to Fig. 1, tower machine 100 comprises auxiliary pull bar 10, body of the tower 20, counter-jib 30, counter-jib pull bar 40, crane arm 50, crane arm pull bar 60 and the support 70 installed.Body of the tower 20 tops are provided with revolving dial 22, and the end of counter-jib 30, support 70 and crane arm 50 is installed in respectively on the revolving dial 22.Be appreciated that according to different types, revolving dial 22 can only comprise upper bracket, also may further include the slewing tower that is suitable for arranging driver's cabin.Only comprise in the type of upper bracket at revolving dial 22, counter-jib 30, support 70 are connected with crane arm and are connected with upper bracket respectively.Comprise in the type of upper bracket and slewing tower at revolving dial 22, counter-jib 30, support 70 are connected with crane arm and are connected with slewing tower respectively.
The auxiliary pull bar 10 of installing is hung on counter-jib 30 or/and revolving dial 22 in tower machine 100 installation processes crane arm 50 is drawn temporarily.The auxiliary pull bar 10 of installing comprises tension and relaxed state, in tension, auxiliary install pull bar 10 be tightened in crane arm 50 and counter-jib or 30/ and revolving dial 22 between with interim pulling crane arm 50, under relaxed state, the auxiliary pull bar 10 of installing loosely is connected in crane arm 50 and counter-jib 30 or/and between the revolving dial 22.
Please refer to Fig. 2 A-2D, the auxiliary installation pull bar 10 of preferred embodiment of the present invention comprises first segment unit 12 and the second section unit 14 that interconnects, and first segment unit 12 comprises a stock 121 and is positioned at the first connecting portion 122, second connecting portion 123 of stock 121 2 ends.The first connecting portion 122 is provided with axis hole 122a.The second connecting portion 123 is provided with mounting hole 123a.
Please refer to Fig. 2 E-2F, second section unit 14 comprises stock 141 and is positioned at the first connecting portion 142, second connecting portion 143 of stock 141 2 ends.The first connecting portion 142, the second connecting portion 143 are respectively equipped with axis hole 142a, 143a.
The second connecting portion 123 of first segment unit 12 is connected by bearing pin 16 with the first connecting portion 142 of second section unit 14, and bearing pin 16 passes mounting hole 123a and axis hole 142a, and bearing pin 16 can slide in described mounting hole 123a.The slightly larger in diameter of axis hole 142a is in the diameter of bearing pin 16.
Auxiliary two ends that pull bar 10 is installed, the first connecting portion 122 of first segment unit 12 and the first connecting portion 142 of second section unit 14 are respectively applied to be connected with counter-jib 30, crane arm 50.
According to the size in assembly unit place and the ability of crane gear, determine how many sections crane arm 50 is divided into and installs when crane arm 50 is installed, certainly in the situation that various conditions permits, sections is as far as possible longer, to reduce the aerial work number of times.The below is installed as the installation method that example is illustrated derrick runway girder with 50 minutes three sections of crane arm, and its step comprises:
(1) please refer to Fig. 3 A-3C, crane arm 50 is assembled into the first sections 50a, the second sections 50b and the 3rd sections 50c loading trolley 80 on ground and is installed on crane arm the first sections 50a;
(2) please refer to Fig. 4, lifting crane arm the first sections 50a is connected with revolving dial 22 first hinges pivot by the lower boom of bearing pin with crane arm the first sections 50a left part to the relevant position.
(3) will assist a end that pull bar 10 is installed and top boom 52(Fig. 7 of crane arm the first sections 50a) the end be connected, the auxiliary other end that pull bar 10 is installed is connected with counter-jib 30 or/and revolving dial 22, then put down suspension hook 200, the auxiliary pull bar 10 of installing is tension, thereby crane arm 50 being connected with the hinge eliminant of other structures become one is rigidly connected;
(4) the first pull bar 60a is connected between support 70 and crane arm the first sections 50a;
(5) please refer to Fig. 5, lifting crane arm the second sections 50b is connected with support 70 also connecting with bearing pin between the crane arm pull bar 60b of crane arm the second sections 50b to the relevant position, and crane gear can put down suspension hook 200;
(6) the second pull bar 60b is connected between support 70 and crane arm the second sections 50b;
(7) please refer to Fig. 6, lifting crane arm the 3rd sections 50c connects crane arm the 3rd sections 50c and crane arm the second sections 50b to the relevant position with bearing pin;
(8) described crane arm 50 is rotated around described the first hinge, counter-jib pull bar 40 is connected on described support 70 and the described counter-jib 30;
(9) crane arm 50 is put down naturally, the corresponding pull bar 60b tensioning of the first pull bar 60a and crane arm 50 other sections is to hold crane arm 50, and the auxiliary pull bar 10 of installing is relaxed state.After the installation, crane arm 50 has certain upwarping (being generally about 1 °), please refer to Fig. 7, the top boom 52 of crane arm the first sections 50a and the distance between the counter-jib 30 shorten, owing to assisting installation pull bar 10 with mounting hole 123a, therefore the auxiliary pull bar 10 of installing is in case of bending again, the effect that does not stress, therefore do not need to remove, when removing tower machine 100, crane arm 50 can segmentedly be removed.
Be appreciated that using auxiliary installation pull bar 10 of the present invention installs crane arm 50, crane arm 50 also can only be divided into a sections and install.In the present embodiment, the first connecting portion 142 of the first connecting portion 122 of first segment unit 12 and second section unit 14 is realized being rigidly connected with counter-jib 30, crane arm the first sections 50a respectively by bearing pin.But in other embodiment, auxiliary two ends that pull bar 10 is installed also can be realized being rigidly connected with counter-jib 30, crane arm the first sections 50a respectively by alternate manners such as flanges.
Be appreciated that according to the distance of crane arm 50 to counter-jib 30, the auxiliary pull bar 10 of installing also can comprise joint or a more piece.When auxiliary installation pull bar 10 is a joint, the second connecting portion 123 with mounting hole 123a is connected by bearing pin with counter-jib 30 or crane arm the first sections 50a, thereby crane arm 50 is installed when being upturned, the second connecting portion 123 can be crooked with the junction of counter-jib 30 or crane arm the first sections 50a, and the auxiliary pull bar 10 of installing does not stress.
The auxiliary pull bar 10 of installing is not limited to said structure, first segment unit 12 also can all arrange mounting hole 123a by two ends, second section unit 14 also can an end or two ends mounting hole 123a is set, auxiliary two ends that pull bar 10 is installed are connected with counter-jib 30, crane arm the first sections 50a respectively by bearing pin.
Adopt the auxiliary pull bar 10 segmentations installation derrick runway girder 50 of installing to have following at least advantage:
1, disposable lifting is avoided in crane arm 50 segmented installations, has reduced the requirement to the crane gear ability, saves mounting cost, and no longer requiring has large assembly unit place to come assembly unit crane arm 50;
2, whole machine installation is complete, crane arm 50 has certain upwarping, the top boom 52 of crane arm 50 shortens with counter-jib 30 distances, owing to assisting installation pull bar 10 with mounting hole 123a, therefore the auxiliary pull bar 10 of installing is in case of bending, the effect that does not stress again, therefore do not need to remove, when removing the tower machine, crane arm 50 can segmentedly be removed, and the auxiliary pull bar 10 of installing is removed rear recycling.
3, provide new method at the water surface tower machine 100 being installed, widened the scope of application of tower machine 100.
The above, only be embodiments of the invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (9)

1. the auxiliary installation pull bar of a derrick runway girder, be hung on counter-jib or/and revolving dial in tower machine installation process described crane arm is drawn temporarily, described auxiliary installation pull bar comprises tension and relaxed state, in described tension, described auxiliary installation pull bar be tightened in described crane arm and counter-jib or/and between the revolving dial with the described crane arm of interim pulling, under described relaxed state, described auxiliary installation pull bar loosely is connected in described crane arm and counter-jib or/and between the revolving dial.
2. the auxiliary installation pull bar of derrick runway girder as claimed in claim 1, it is characterized in that: described auxiliary installation pull bar comprises the first segment unit, at least one end of described first segment unit is provided with mounting hole, is equipped with bearing pin in the described mounting hole, and described bearing pin can slide in described mounting hole.
3. the auxiliary installation pull bar of derrick runway girder as claimed in claim 2, it is characterized in that: described auxiliary installation pull bar also comprises the second section unit, described first segment unit and described second section unit join end to end by described bearing pin.
4. the auxiliary installation pull bar of derrick runway girder as claimed in claim 3, it is characterized in that: described first segment unit comprises stock and is positioned at the first connecting portion and second connecting portion of stock two ends, described second section unit comprises stock and is positioned at the first connecting portion and second connecting portion of stock two ends, the second connecting portion of the second connecting portion of described first segment unit and described second section unit links together, the first connecting portion of described first segment unit is used for being connected with the crane arm of tower machine, and the first connecting portion of described second section unit is used for being connected with the counter-jib of tower machine.
5. the auxiliary installation pull bar of derrick runway girder as claimed in claim 4, it is characterized in that: the second connecting portion of described first segment unit is provided with described mounting hole, the second connecting portion of described second section unit is provided with circular hole, and described bearing pin wears described circular hole and is fixed in the described circular hole.
6. the auxiliary installation pull bar of derrick runway girder as claimed in claim 4, it is characterized in that: the first connecting portion of described first segment unit is provided with circular hole, and the first connecting portion of described first segment unit is fixedly connected with described crane arm by bearing pin; The first connecting portion of described second section unit is provided with circular hole, and the first connecting portion of described second section unit is fixedly connected with described counter-jib by bearing pin.
7. the auxiliary installation pull bar of derrick runway girder as claimed in claim 2, it is characterized in that: described first segment unit comprises stock and is positioned at the first connecting portion and second connecting portion of stock two ends, described the first connecting portion is used for being connected with the crane arm of tower machine, described the second connecting portion is used for being connected with the counter-jib of tower machine, one of them is provided with described mounting hole described the first connecting portion and the second connecting portion, and wherein another of described the first connecting portion and the second connecting portion is provided with circular hole.
8. derrick runway girder installation method comprises step:
Crane arm the first sections is winched to the relevant position, and the lower end of described crane arm the first sections is connected in the first hinge pivot with the revolving dial of tower machine;
The auxiliary end that pull bar is installed is connected with crane arm the first sections, and the other end of auxiliary installation pull bar or/and revolving dial is connected, then puts down suspension hook with counter-jib, and described auxiliary installation pull bar is tension;
The first pull bar is connected between support and described crane arm the first sections;
If crane arm also has other sections, then lift other sections of crane arm, namely other sections of crane arm is sling successively and installed and be connected on the last sections of adjacent crane arm, and the corresponding pull bar of other sections of crane arm is connected between described support and other sections of crane arm;
Described crane arm is rotated around described the first hinge, the counter-jib pull bar is connected on described support and the described counter-jib;
Described crane arm is put down naturally, and the corresponding pull bar tensioning of described the first pull bar and described other sections of crane arm is to hold described crane arm, and described auxiliary installation pull bar is relaxed state.
9. derrick runway girder installation method as claimed in claim 8, it is characterized in that: described auxiliary installation pull bar is the described auxiliary installation pull bar of claim 1-7 any one.
CN201210460623.8A 2012-11-15 2012-11-15 The auxiliary installation pull bar of derrick runway girder installation method and application thereof Active CN102922280B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108910729A (en) * 2018-09-29 2018-11-30 山东以琳智能科技有限公司 A kind of device and method improving prestressing force crane arm tower crane stress

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CN108910729A (en) * 2018-09-29 2018-11-30 山东以琳智能科技有限公司 A kind of device and method improving prestressing force crane arm tower crane stress

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Application publication date: 20130213

Assignee: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY DEVELOPMENT Co.,Ltd. WEINAN BRANCH

Assignor: ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY Co.,Ltd.

Contract record no.: X2023980042749

Denomination of invention: Installation method and application of auxiliary installation rod for tower crane boom

Granted publication date: 20160203

License type: Common License

Record date: 20231008

Application publication date: 20130213

Assignee: Zoomlion Construction Crane Co.,Ltd.

Assignor: ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY Co.,Ltd.

Contract record no.: X2023980042704

Denomination of invention: Installation method and application of auxiliary installation rod for tower crane boom

Granted publication date: 20160203

License type: Common License

Record date: 20231008

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