CN101337642A - Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof - Google Patents
Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof Download PDFInfo
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- CN101337642A CN101337642A CNA2007100352566A CN200710035256A CN101337642A CN 101337642 A CN101337642 A CN 101337642A CN A2007100352566 A CNA2007100352566 A CN A2007100352566A CN 200710035256 A CN200710035256 A CN 200710035256A CN 101337642 A CN101337642 A CN 101337642A
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Abstract
The invention discloses a method for aloft disassembling the major arm of a horizontal suspension arm type stacker crane, and a device thereof. The method comprises the following steps: a part of balancing weight on a balance arm is disassembled by using a self-equipped main windlass of the crane; then a supporting device is fixed on the major arm; after passing the supporting device, the wirerope of the main windlass of the stacker crane is tied tightly on a front-end knuckle arm; a ridge beam connecting pin between two knuckle arms is knocked out; the wirerope is slowly released to cause the knuckle arm at the forefront end of the major arm to slowly bend to a drooping state; a manually-operated gourd is hung on the ridge beam; the front-end knuckle arm is tightened, and then two lower boom connecting pins are knocked out to cause the front-end knuckle arm to separate from the major arm; then the windlass is started to lower the front-end knuckle arm to the ground; and the above steps are repeated to gradually disassemble the rest knuckle arms of the major arm. The method can not only rapidly and safely disassemble the major arm from aloft, but also realize standardized safe operation, thereby providing reliable guarantee for convenient and safe use of the stacker crane for high-rise buildings.
Description
Technical field
The present invention relates to a kind of method and device thereof of aerial dismounting big arm of tower crane with horizontal arm.
Background technology
Tower crane (being called for short the tower machine again) is marched into the arena and will be installed when being used for the building ground, and engineering will be removed intact man-hour, so the installing/dismounting of tower machine is a regular job.The dismounting under normal circumstances of tower machine is to reduce on the overhead lower height, adopts car hosit to do that subsidiary engine helps finish.But in real work, when the tower machine is increased in the air along with the rising of building after, because its big arm stretches out oversize, under the influence of reasons such as building and place is interfered, make and be in the aerial big arm of tower machine and can't normally fall voluntarily, perhaps the tower machine certain mechanical breakdown occurs and can not fall body of the tower certainly, at this moment for the tower machine that is in high-altitude more than tens meters, the arm of any wheel crane is the such height of out of reach also, promptly can not use any subsidiary engine to help, and can't carry out by the method for normal decline.Whenever this situation appearance, people are the conditions according to the scene, take some ccasual measures to solve, and this ccasual measure is easy to cause the generation of safety misadventure owing to there are some uncertain factors.
Summary of the invention
The object of the present invention is to provide a kind of method and device thereof of aerial dismounting big arm of tower crane with horizontal arm, this method and device thereof can be in the height the safest aerial dismountings of finishing the big arm of tower crane.
The method of aerial dismounting big arm of tower crane with horizontal arm provided by the invention may further comprise the steps:
A, unload part clump weight on the equilibrium arm earlier with the main winch of arm of tower crane with horizontal self;
B, fix a bearing set at the big arm front end of the described tower crane joint arm second joint arm front end backward, through behind the bearing set, the master winch steel cable is controlled by the driver in the bolt jail on front end joint arm with tower machine main winch steel rope, after straining steel cable slightly, pound out the spine connecting pin between two joint arms;
C, control main winch, slowly discharge steel rope, make big arm save arm foremost and slowly transfer to hang by the driver;
D, hang a bottle gouard moved by hands near the described bearing set installation site being positioned on the spine, the front end joint arm of folding has been fallen in tension, pounds out two lower edge connecting pins again, and front end joint arm is separated with big arm, starts winch then and directly front end is saved arm from reducing to ground in the air;
The joint arm of big arm remainder is pulled down in e, continuation by joint with the step of b-d.
The bearing set that needs usefulness in the said method comprises the support that is fastened on the big arm, and two fixed pulleys are housed on this support, and the groove of two pulleys is relative, forms the guide-localization groove of steel rope guiding.
Because the present invention made full use of tower machine self main winch, pull down the part clump weight earlier, pull down big arm by joint again, even like this under the situation that arm weight alleviates gradually greatly, hoisting crane can not toppled over yet.The contriver disassembles big arm like a bomb by experiment repeatedly in the aerial safety of height, the speed of not only dismantling is fast, and can realize the normalisation safe operation, provides the failure-free assurance for skyscraper uses the tower machine easily safely thus.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Fig. 3 is the cutaway view of Fig. 2 along the B-B line.
The specific embodiment
The present invention dismantles the method for the big arm of tower machine aloft, can be undertaken by following concrete steps:
A, unload the lower part clump weight earlier with the main winch of tower machine self.
The contriver sums up in test, can only keep a clump weight on the equilibrium arm.Intend the balance in the assurance follow-up work.
If the tower machine itself has the pulley yoke (the part imported tower crane has this pulley yoke) that unloads clump weight, can directly use the steel rope of main winch on this pulley bracket bolt jail hangers at clump weight, the segment distance of slinging takes out the extension pin of clump weight, then by the driver operation main winch, discharge steel rope, make clump weight drop to ground.If the tower machine itself does not have pulley bracket (homemade tower machine does not generally have this pulley bracket) to settle pulley by built, and then unloads clump weight.
B, fix a bearing set at the big arm front end of the tower crane joint arm second joint arm front end backward, behind tower machine main winch steel rope process bearing set, the bolt jail is on front end joint arm, about the rear end of front end joint arm about one meter, control the master winch steel cable by the driver, after straining steel cable slightly, pound out the spine connecting pin between two joint arms.
C, control main winch, slowly discharge steel rope, make big arm save arm foremost and slowly transfer to hang by the driver.
D, hang a bottle gouard moved by hands near the described bearing set installation site being positioned on the spine, the front end joint arm that tension has fallen to roll over, pound out two lower edge connecting pins again, front end joint arm is separated with big arm, can save gentle rope of arm bolt this moment at front end, by manually leading the other end, avoid the excessive swing of front end joint arm in separation process, start winch then and directly front end is saved arm from reducing to ground in the air;
E, pull down the joint arm of big arm remainder from front to back by joint with the step of b-d.
Bearing set of the present invention as can be seen from Figure 1 has a support 1 and two fixed pulleys, 2, two fixed pulleys 2 are installed on the support 1, their groove is relative, form the guide-localization groove 4 of main winch steel rope 3, this groove for the steel rope guiding, prevents that on the other hand steel rope from skidding off on the one hand.Carrier base 1 is fastened on the front end of the second joint arm D of the big arm front end of tower machine by anchor ear 5 and bolt 6.As shown in Figure 1, to dismantle front end joint arm C now, should bearing set be installed the front end of the back joint arm D of front end joint arm C so, and make main winch steel rope 3 pass guide-localization groove 4 between two fixed pulleys 2, then with steel rope 3 firm fastening on front end joint arm C, preferably apart from about one meter of connecting pin 7 (being front end joint arm and back one joint arm bonded assembly spine connecting pin).Start main winch with steel rope 3 backward slightly tension by the driver this moment, make front end joint arm C reduce stressed as far as possible with the connecting pin 7 that back one joint arm D links to each other, then with manually pounding out connecting pin 7, slowly discharge steel rope by the driver again, make front end joint arm fall folding under gravity and be hang, pound out following two connecting pins then after, front end joint arm and back one joint arm D are broken away from, control steel rope 3 slowly discharges under driver's operation, makes front end joint arm C fall to ground slowly.Repeat above-mentioned steps and can pull down the remaining sections of big arm by joint from front to back, finish the skyborne dismounting of big arm thus.
Claims (2)
1, dismantle the method for big arm of tower crane with horizontal arm in the air, its feature may further comprise the steps:
A, unload part clump weight on the equilibrium arm earlier with the main winch of arm of tower crane with horizontal self;
B, fix a bearing set at the big arm front end of the described tower crane joint arm second joint arm front end backward, through behind the bearing set, the master winch steel cable is controlled by the driver in the bolt jail on front end joint arm with tower machine main winch steel rope, after straining steel cable slightly, pound out the spine connecting pin between two joint arms;
C, control main winch, slowly discharge steel rope, make big arm save arm foremost and slowly transfer to hang by the driver;
D, hang a bottle gouard moved by hands near the described bearing set installation site being positioned on the spine, the front end joint arm of folding has been fallen in tension, pounds out two lower edge connecting pins again, and front end joint arm is separated with big arm, starts winch then and directly front end is saved arm from reducing to ground in the air;
The joint arm of big arm remainder is pulled down in e, continuation by joint with the step of b-d.
2, the bearing set that needs usefulness in the described method of a kind of claim 1 is characterized in that comprising the support (1) that is fastened on the big arm, and two fixed pulleys (2) are housed on this support, and the groove of two pulleys is relative, forms the guide-localization groove (4) of steel rope guiding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100352566A CN101337642A (en) | 2007-07-02 | 2007-07-02 | Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100352566A CN101337642A (en) | 2007-07-02 | 2007-07-02 | Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101337642A true CN101337642A (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100352566A Pending CN101337642A (en) | 2007-07-02 | 2007-07-02 | Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof |
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| CN (1) | CN101337642A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712218A (en) * | 2016-03-31 | 2016-06-29 | 中国建筑第八工程局有限公司 | Construction method for changing lifting arm of heavy horizontal-arm tower crane at high altitude |
| CN108103933A (en) * | 2018-02-05 | 2018-06-01 | 北京力铁轨道交通设备有限公司 | A kind of bridge-checking vehicle work jibs quickly solve hanging hang structure |
| CN108975181A (en) * | 2018-08-15 | 2018-12-11 | 中国电建集团贵州电力设计研究院有限公司 | A kind of method for dismounting of derrick crane |
| CN109292651A (en) * | 2018-11-27 | 2019-02-01 | 派尔泰科机械科技（天津）有限公司 | Crane arm is used in a kind of repacking of excavator |
-
2007
- 2007-07-02 CN CNA2007100352566A patent/CN101337642A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712218A (en) * | 2016-03-31 | 2016-06-29 | 中国建筑第八工程局有限公司 | Construction method for changing lifting arm of heavy horizontal-arm tower crane at high altitude |
| CN108103933A (en) * | 2018-02-05 | 2018-06-01 | 北京力铁轨道交通设备有限公司 | A kind of bridge-checking vehicle work jibs quickly solve hanging hang structure |
| CN108103933B (en) * | 2018-02-05 | 2023-11-10 | 北京力铁轨道交通设备有限公司 | Quick unhooking structure of bridge inspection vehicle operation arm |
| CN108975181A (en) * | 2018-08-15 | 2018-12-11 | 中国电建集团贵州电力设计研究院有限公司 | A kind of method for dismounting of derrick crane |
| CN109292651A (en) * | 2018-11-27 | 2019-02-01 | 派尔泰科机械科技（天津）有限公司 | Crane arm is used in a kind of repacking of excavator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090107 |