CN107697817B - A kind of method of tower crane crane arm elongated degree in the air - Google Patents
A kind of method of tower crane crane arm elongated degree in the air Download PDFInfo
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- CN107697817B CN107697817B CN201711035432.6A CN201711035432A CN107697817B CN 107697817 B CN107697817 B CN 107697817B CN 201711035432 A CN201711035432 A CN 201711035432A CN 107697817 B CN107697817 B CN 107697817B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes 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
- B66C23/16—Cranes 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 with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes 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
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
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- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A kind of method of tower crane crane arm elongated degree in the air, traditional tower machine is solved in the narrow construction site of building dense, tower crane large arm is often limited by peripheral obstacle, can not normal operation deficiency, by in large arm, mounting bracket on counter-jib, the dismantlement work of large arm arm joint and counterweight is completed using Lift Mechanism in Power Hoist, guarantee that tower crane can normal construction operation, both safe and reliable, again convenient for operation, engineering cost is saved, accelerate construction speed, obtain good economic benefit and social benefit, the change brachium problem for being flat-top tower crane under special operation condition provides a kind of practicable construction method；This construction technology can smoothly complete the aerial change brachium work of flat-top tower crane in the case where not by other lifting equipments, provide valuable arrangement and method for construction and technical support to encounter similar ask in construction later.
Description
Technical field
The present invention relates to tower crane technical field for building, the method for especially a kind of tower crane crane arm elongated degree in the air.
Background technique
With the fast development of urban construction, large size city synthesis project is in full flourish like the mushrooms after rain, annex, tower
Building is closely coupled, and building and tower crane density are increasing, these synthesis construction projects are often that foundation construction area is big, project
Integral synchronous construction generally uses group towers work group operating mode, and the different construction stages requires difference to the brachium of tower crane,
So under complicated construction operating condition, to tower crane avoidance, more stringent requirements are proposed with tower scheme is torn open；
In conjunction with domestic construction status, causing flat-top tower crane to need the reason of changing brachium mainly has following aspects:
(1) Party A's modification of orders.Due to being changed etc. architectural design change, arrangement and method for construction, tower crane is big when causing operation
Arm and barrier are interfered；
(2) tower crane arrangement and method for construction considers not comprehensive, not scientific, fails to fully understand construction operating condition, generates tower crane
The phenomenon that mutually beating tower body；
(3) building structure is special, and tower crane normally drops section when tearing tower open, and large arm is interfered with building exterior wall face, can not be reduced
Tower is torn open after tower crane height；
(4) special construction scheme, such as large size city synthesis project need group towers work, and the foundation construction stage needs
Larger arm length, high building construction stage need minor arms long；
(5) other special operation conditions；
Tower crane production, the competition of leasing market also grow in intensity, and construction side not only needs product, with greater need for profession
Service, flat-top tower crane become brachium technical solution and exactly comply with industry development, complete to become brachium by Lift Mechanism in Power Hoist, are project
Normal construction operation provides guarantee.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of methods of tower crane crane arm elongated degree in the air, solve
Traditional tower machine often limited by peripheral obstacle in the narrow construction site of building dense, tower crane large arm, can not normal operation
Deficiency completes the disassembly work of large arm arm joint and counterweight using Lift Mechanism in Power Hoist by the mounting bracket on large arm, counter-jib
Make, guarantees that tower crane can normal construction operation；Not only safe and reliable, but also convenient for operation, saved engineering cost, accelerated construction
Progress obtains good economic benefit and social benefit, and the change brachium problem for being flat-top tower crane under special operation condition provides
A kind of practicable construction method；
Mentality of designing in order to better illustrate the present invention, with the change of Zhong Lianchong section TCT7015-10E flat-top tower crane 70m arm
For 65m arm, brachium technology is become to flat-top tower crane and carries out detailed analysis, and specifically setting critical component parameter is as follows；
1. the setting of TCT7015-10E tower crane major parameter is as shown in table 1:
Table 1
2. the weight set of different brachium combinations and each arm joint is shown in Table 2:
Table 2
3. combinations of weights parameter setting is shown in Table 3:
Table 3
4. lifting mechanism parameter setting is shown in Table 4:
5. required conventional tool inventory is shown in Table 5 to table 4:
6. see Table 6 for details for special stand for table 5:
Table 6
A kind of method of tower crane crane arm elongated degree in the air, comprising the following steps:
Remove whether place, road etc. meet dismounting demand Step 1: checking；It is linked up with project management department, necessary match is provided
It closes；It must safety, management side station；Counterweight, large arm lower zone drawing warning line are being removed, if security area, operation forbids nothing before finishing
Pass personnel enter；Maintenance, maintenance and the inspection of tower crane, to guarantee safety, the integrity of equipment；
Step 2: tower crane returns back to position easy to dismantle, swing mechanism braking, operation forbids tower crane to turn round before finishing；
According to brachium situation of change, counterweight, large arm combined state are searched；
Step 3: installing pulley yoke on tower top, roller frame is installed in large arm, takes off bridge, the roller frame is mounted on
On the main string in the front end of each arm joint, the bridge of taking off is mounted on the main string in seven front end of arm joint；Portal frame is installed on counter-jib, is adjusted
Whole pulley is mounted on the top of 1.3t counterweight；
Illustrate as an example, since the height of arm joint one, two, three is 2.5m, the high 1.7m of remaining arm joint, so operation
Personnel must match on-slip shoes, safety belt, prevent from falling, tool, the component to be installed used is connected to steel construction with safety rope
On, it prevents from falling；
Step 4: opening trolley to large arm front end, suspension hook is removed in suspension hook landing；
Step 5: removing arm point lock rope cover of wedge, wirerope is fixed on the trolley, withdraws trolley to large arm arm root, open
Dynamic lifting mechanism withdraws raising line to lifting mechanism；
Step 6: passing around raising line again, the row's of sequentially passing through rope sheave, the pulley yoke of tower top, portal frame are sliding since reel
Wheel, and gear rope bar is installed, it prevents from skipping rope；It is connected with steel wire rope clamp, shackle and 1.3t counterweight lifting lug, at the last one steel wire rope clamp
If safety is curved；Lifting mechanism is slowly started, 1.3t counterweight 100mm hovering 1min is promoted, checks whether connection state fastens, if
There is no problem, extracts 1.3t counterweight and connects pin shaft, starts lifting mechanism and transfers 1.3t counterweight to ground, withdraws raising line；
Illustrate as an example, lifting mechanism maximum drawbar pull 30kN, safety coefficient 2.3；
Step 7: pass around raising line again in large arm using the trolley, row rope sheave, tower top are sequentially passed through from reel
Pulley yoke, the roller frame of large arm and gin pole frame pulley, and install gear rope bar, pays attention to inspection, prevent wirerope tangle steel construction or
Pin shaft is fixed on raising line end with steel wire rope clamp the weld with string main in arm joint eight and third root web member；
Step 8: trolley is parked in seven front end of arm joint, is connected at pin shaft 0.5m away from arm joint seven, eight, make small lock using rope
Tightly in large arm, prevent it from moving freely, as workbench when removing；Front end variable-amplitude steel wire rope is removed, a disk is rolled into
It is fixed in the arm joint seven in large arm；Upper main chord in seven front end of arm joint installs 5t hoist, and seven other end of arm joint is locked at
In arm joint eight at first of diagonal web member of main string；Hoist is tensed, is write off using a dedicated pin shaft of φ 35, is struck with sledgehammer
It beats and writes off, remove the lower main string pin shaft that arm joint seven is connect with arm joint eight, the dedicated pin shaft of φ 35 installs backing pin；With same method
Main string pin shaft under the other end is removed, the dedicated pin shaft of φ 35 installs backing pin；
Slowly pine hoist gets the upper main string pin shaft that arm joint seven and arm joint eight connect；Continue to open while loose hoist
Dynamic lifting mechanism transfers raising line；Make main string separation in arm joint seven and arm joint eight；Check whether raising line slips rope phenomenon, such as nothing
It slips rope phenomenon then to continue to transfer raising line while loose hoist, until raising line is caught in main string connector, at this time with 1 φ
In 35 dedicated pin shaft insertion arm joints seven in main string connecting pin bores, it is stuck in raising line on the inside of pin shaft, backing pin is installed；
Continue to transfer raising line, until eighty per cant vertical state of arm joint, unclamp one end of 5t hoist connection arm joint eight,
It is fixed on eight lower boom of arm joint again, tenses hoist, remove the dedicated pin shaft of lower boom φ 35 that arm joint seven is connect with arm joint eight；
Continue loose hoist, while transferring raising line, until arm joint eight completely disengages arm joint seven, unclamps hoist and arm joint
Eight connection.Decentralization raising line is until arm joint eight, nine lands；
As a kind of security protection for example, the safety belt of installation personnel must two links hang over big arm rest simultaneously
On bar, it is necessary to which, with one end of the tools such as safety rope connection sledgehammer, hoist, the other end is connected on steel construction, can use small
The maintenance hanging basket of vehicle carries out dismounting operation；
Illustrate as an example, lifting mechanism maximum drawbar pull 30kN, hoist rated load weight 5t, arm joint eight, nine
Gross weight 0.45t, raising line can be met the requirements with hoist pulling force 12.5kN；
Step 9: dismantle arm joint eight and nine on the ground, by raising line across the dedicated pin shaft of φ 35 of nine top boom of arm joint,
It is fixed on top boom and web member junction, arm joint nine is sling, lower boom jointing is installed lower boom pin shaft, torn open to after just
Except the dedicated pin shaft of top boom φ 35, raising line is received, arm joint nine installs top boom pin shaft after the rotation in place of lower boom pin shaft；
Step 10: illustratively book end tower program installs variable amplitude rope, suspension hook, raising line, safety and limiting device are debugged, until
This, TCT7015-10E flat-top tower crane 70m arm becomes the work of 65m arm and terminates.
The utility model has the advantages that
1, the present invention program is safe and reliable, economically feasible, convenient and efficient, is suitble to promote；
2, this construction technology can smoothly complete the aerial of flat-top tower crane in the case where not by other lifting equipments
Become brachium work, provides valuable arrangement and method for construction and technical support to encounter similar ask in construction later.
Detailed description of the invention
Fig. 1 is a kind of flat-top tower crane working effect figure of tower crane crane arm of the present invention method of elongated degree in the air
Fig. 2 is that a kind of flat-top tower crane TCT7015-10E structure of tower crane crane arm of the present invention method of elongated degree in the air is shown
It is intended to
Fig. 3 is a kind of flat-top tower crane TCT7015-10E large arm group of tower crane crane arm of the present invention method of elongated degree in the air
At structure chart
Fig. 4 is that a kind of special stand of tower crane crane arm of the present invention method of elongated degree in the air is mounted on the position on tower crane
Schematic diagram
Fig. 5 a is that a kind of 1.3t counterweight of tower crane crane arm of the present invention method of elongated degree in the air removes operation schematic diagram
Fig. 5 b is that a kind of 1.3t counterweight of tower crane crane arm of the present invention method of elongated degree in the air removes work partial enlargement
Schematic diagram
Fig. 6 is that a kind of trolley of tower crane crane arm of the present invention method of elongated degree in the air passes around raising line again in large arm
Operation schematic diagram
Fig. 7 is that a kind of working condition of tower crane crane arm of the present invention dismounting arm joint eight, nine of the method for elongated degree in the air is shown
It is intended to
Fig. 8 is a kind of working effect schematic diagram of tower crane crane arm of the present invention installation arm joint nine of the method for elongated degree in the air
Fig. 9 is a kind of structural design drawing of tower crane crane arm of the present invention special stand pulley yoke of the method for elongated degree in the air
Figure 10 is a kind of structure design of tower crane crane arm of the present invention special stand roller frame of the method for elongated degree in the air
Figure
Figure 11 is that a kind of special stand of tower crane crane arm of the present invention method of elongated degree in the air takes off the structure design of bridge
Figure
Figure 12 is a kind of structure design of tower crane crane arm of the present invention special stand portal frame of the method for elongated degree in the air
Figure
Figure 13 is that a kind of structure of tower crane crane arm of the present invention dedicated pin shaft of special stand of the method for elongated degree in the air is set
Meter figure
Specific embodiment
In the following, with reference to figures 1 through shown in Figure 13, mentality of designing in order to better illustrate the present invention, with Zhong Lianchong section
TCT7015-10E flat-top tower crane 70m arm becomes for 65m arm, becomes brachium technology to flat-top tower crane and carries out detailed analysis, and specifically sets
It is as follows to determine critical component parameter；
1. the setting of TCT7015-10E tower crane major parameter is as shown in table 1:
Table 1
2. the weight set of different brachium combinations and each arm joint is shown in Table 2:
Table 2
3. combinations of weights parameter setting is shown in Table 3:
Table 3
4. lifting mechanism parameter setting is shown in Table 4:
5. required conventional tool inventory is shown in Table 5 to table 4:
6. see Table 6 for details for specific purpose tool for table 5:
Table 6
A kind of method of tower crane crane arm elongated degree in the air, comprising the following steps:
Remove whether place, road etc. meet dismounting demand Step 1: checking；It is linked up with project management department, necessary match is provided
It closes；It must safety, management side station；Counterweight, large arm lower zone drawing warning line are being removed, if security area, operation forbids nothing before finishing
Pass personnel enter；Maintenance, maintenance and the inspection of tower crane, to guarantee safety, the integrity of equipment；
Step 2: tower crane returns back to position easy to dismantle, swing mechanism braking, operation forbids tower crane to turn round before finishing；
According to brachium situation of change, counterweight, large arm combined state are searched；
Step 3: installing pulley yoke 10 on tower top, roller frame 11, gin pole frame 12, the roller frame are installed in large arm
11 are mounted on the main string in front end of each arm joint, and the gin pole frame 12 is mounted on the main string in 7 front end of arm joint；It is installed on counter-jib
Portal frame 13, adjustment pulley are mounted on the top of 1.3t counterweight；
Illustrate as an example, due to arm joint 1,2,3 height be 2.5m, the high 1.7m of remaining arm joint 4,5,6,7,8,9,
So operating personnel must match on-slip shoes, safety belt, prevent from falling, tool, the component to be installed used is connected with safety rope
On steel construction, prevent from falling；
Step 4: opening trolley to large arm front end, suspension hook is removed in suspension hook landing；
Step 5: removing arm point lock rope cover of wedge, wirerope is fixed on the trolley, withdraws trolley to large arm arm root, open
Dynamic lifting mechanism withdraws raising line to lifting mechanism；
Step 6: raising line is passed around again, pulley yoke 10, the portal frame of the row's of sequentially passing through rope sheave, tower top since reel
Pulley, and gear rope bar is installed, it prevents from skipping rope；It is connected with steel wire rope clamp, shackle and 1.3t counterweight lifting lug, the last one steel wire rope clamp
It is curved that place sets safety；Lifting mechanism is slowly started, 1.3t counterweight 100mm hovering 1min is promoted, checks whether connection state fastens, such as
There is no problem for fruit, extracts 1.3t counterweight and connects pin shaft, starts lifting mechanism and transfers 1.3t counterweight to ground, withdraws raising line；
Illustrate as an example, lifting mechanism maximum drawbar pull 30kN, safety coefficient 2.3；
Step 7: pass around raising line again in large arm using the trolley, row rope sheave, tower top are sequentially passed through from reel
12 pulley of pulley yoke 10, the roller frame 11 of large arm and gin pole frame, and gear rope bar is installed, pay attention to checking, prevents wirerope from tangling steel
Structure or pin shaft are fixed on raising line end with steel wire rope clamp the weld with string main in arm joint 8 and third root web member；
Step 8: trolley is parked in 7 front end of arm joint, is connected at pin shaft 0.5m away from arm joint 7,8, be locked at trolley using rope
In large arm, prevent it from moving freely, as workbench when removing；Front end variable-amplitude steel wire rope is removed, a disk is rolled into and fixes
In arm joint 7 in large arm；Upper main chord in 7 front end of arm joint installs 5t hoist, and 7 other end of arm joint is locked in arm joint 8
At first of diagonal web member of main string；Hoist is tensed, is write off using a dedicated pin shaft of φ 35, beats abatement with sledgehammer,
The lower main string pin shaft that arm joint 7 is connect with arm joint 8 is removed, the dedicated pin shaft of φ 35 installs backing pin；It is removed with same method another
Main string pin shaft under end, the dedicated pin shaft of φ 35 install backing pin；
Slowly pine hoist gets the upper main string pin shaft that arm joint 7 and arm joint 8 connect；Continue to start while loose hoist
Lifting mechanism transfers raising line；Make main string separation in arm joint 7 and arm joint 8；Check whether raising line slips rope phenomenon, as nothing slips rope
Phenomenon then continues to transfer raising line while loose hoist, until raising line is caught in main string connector, it is special with 1 φ 35 at this time
It is inserted into arm joint 7 in main string connecting pin bores with pin shaft, is stuck in raising line on the inside of pin shaft, backing pin is installed；
Continue to transfer raising line, until arm joint 8 is at vertical state, unclamps one end of 5t hoist connection arm joint 8, then
It is fixed on 8 lower boom of arm joint, tenses hoist, remove the dedicated pin shaft of lower boom φ 35 that arm joint 7 is connect with arm joint 8；
Continue loose hoist, while transferring raising line, until arm joint 8 completely disengages arm joint 7, unclamps hoist and arm joint 8
Connection, decentralization raising line until arm joint 8,9 land；
As a kind of security protection for example, the safety belt of installation personnel must two links hang over big arm rest simultaneously
On bar, it is necessary to which, with one end of the tools such as safety rope connection sledgehammer, hoist, the other end is connected on steel construction, can use small
The maintenance hanging basket of vehicle carries out dismounting operation；
Illustrate as an example, lifting mechanism maximum drawbar pull 30kN, hoist rated load weight 5t, arm joint 8,9 is total
Weight 0.45t, raising line can be met the requirements with hoist pulling force 12.5kN；
Step 9: arm joint 8 and 9 is dismantled on the ground, by raising line across the dedicated pin shaft of φ 35 of 9 top boom of arm joint, Gu
It is scheduled on top boom and web member junction, arm joint 9 is sling, lower boom jointing is to after just, installing lower boom pin shaft, in dismounting
The dedicated pin shaft of chord member φ 35, receives raising line, and arm joint 9 installs top boom pin shaft after the rotation in place of lower boom pin shaft；
Step 10: illustratively book end tower program installs variable amplitude rope, suspension hook, raising line, safety and limiting device are debugged, until
This, TCT7015-10E flat-top tower crane 70m arm becomes the work of 65m arm and terminates.
The present invention program is safe and reliable, economically feasible, convenient and efficient, is suitble to promote；This construction technology is not by other
In the case where lifting equipment, the aerial change brachium work of flat-top tower crane can be completed, smoothly to encounter class in construction later
It seemingly asks and provides valuable arrangement and method for construction and technical support；
Disclosed above is only the specific embodiment of the application, and however, this application is not limited to this, any this field
Technical staff can think variation, should all fall in the protection domain of the application.
Claims (4)
1. a kind of method of tower crane crane arm elongated degree in the air, which comprises the following steps:
Remove whether place, road etc. meet dismounting demand Step 1: checking；It is linked up with project management department, necessary cooperation is provided；Palpus
Station by safety, management；Counterweight, large arm lower zone drawing warning line are being removed, if security area, operation forbids irrelevant personnel before finishing
Into；Maintenance, maintenance and the inspection of tower crane, to guarantee safety, the integrity of equipment；
Step 2: tower crane returns back to position easy to dismantle, swing mechanism braking, operation forbids tower crane to turn round before finishing；According to
Brachium situation of change searches counterweight, large arm combined state；
Step 3: installing pulley yoke on tower top, roller frame is installed in large arm, takes off bridge, the roller frame is mounted on each
On the main string in the front end of arm joint, the bridge of taking off is mounted on the main string in seven front end of arm joint；Portal frame is installed on counter-jib, adjustment is slided
Wheel is mounted on the top of 1.3t counterweight；
Step 4: opening trolley to large arm front end, suspension hook is removed in suspension hook landing；
Step 5: removing arm point lock rope cover of wedge, wirerope is fixed on the trolley, withdraws trolley to large arm arm root, start
It rises mechanism and withdraws raising line to lifting mechanism；
Step 6: raising line is passed around again, the row's of sequentially passing through rope sheave, the pulley yoke of tower top, portal frame pulley since reel, and
Installation gear rope bar, prevents from skipping rope；It is connected with steel wire rope clamp, shackle and 1.3t counterweight lifting lug, sets peace at the last one steel wire rope clamp
It is complete curved；Lifting mechanism is slowly started, 1.3t counterweight 100mm hovering 1min is promoted, checks whether connection state fastens, if do not had
Problem extracts 1.3t counterweight and connects pin shaft, starts lifting mechanism and transfers 1.3t counterweight to ground, withdraws raising line；
Step 7: passing around raising line again in large arm using the trolley, the pulley of row's rope sheave, tower top is sequentially passed through from reel
Frame, the roller frame of large arm and gin pole frame pulley, and gear rope bar is installed, pay attention to checking, prevent wirerope from tangling steel construction or pin shaft,
Raising line end is fixed on steel wire rope clamp the weld with string main in arm joint eight and third root web member；
Step 8: trolley is parked in seven front end of arm joint, is connected at pin shaft 0.5m away from arm joint seven, eight, be locked at trolley using rope
In large arm, prevent it from moving freely, as workbench when removing；Front end variable-amplitude steel wire rope is removed, a disk is rolled into and fixes
In arm joint seven in large arm；Upper main chord in seven front end of arm joint installs 5t hoist, and seven other end of arm joint is locked at arm joint
On eight at first of diagonal web member of main string；Hoist is tensed, is write off using a dedicated pin shaft of φ 35, beats punching with sledgehammer
Pin, removes the lower main string pin shaft that arm joint seven is connect with arm joint eight, and the dedicated pin shaft of φ 35 installs backing pin；It is removed with same method
Main string pin shaft under the other end, the dedicated pin shaft of φ 35 install backing pin；
Slowly pine hoist gets the upper main string pin shaft that arm joint seven and arm joint eight connect；Continue to have started while loose hoist
It rises mechanism and transfers raising line；Make main string separation in arm joint seven and arm joint eight；Check whether raising line slips rope phenomenon, as nothing slips rope
Phenomenon then continues to transfer raising line while loose hoist, until raising line is caught in main string connector, it is special with 1 φ 35 at this time
It is inserted into arm joint seven in main string connecting pin bores with pin shaft, is stuck in raising line on the inside of pin shaft, backing pin is installed；
Continue to transfer raising line, until eighty per cant vertical state of arm joint, unclamps one end of 5t hoist connection arm joint eight, then solid
It is scheduled on eight lower boom of arm joint, tenses hoist, remove the dedicated pin shaft of lower boom φ 35 that arm joint seven is connect with arm joint eight；
Continue loose hoist, while transferring raising line, until arm joint eight completely disengages arm joint seven, unclamps hoist and arm joint eight
Connection, decentralization raising line is until arm joint eight, nine lands；
Step 9: arm joint eight and nine is dismantled on the ground, it is fixed by raising line across the dedicated pin shaft of φ 35 of nine top boom of arm joint
In top boom and web member junction, arm joint nine is sling, lower boom jointing is to after just, installing lower boom pin shaft, in dismounting
The dedicated pin shaft of chord member φ 35, receives raising line, and arm joint nine installs top boom pin shaft after the rotation in place of lower boom pin shaft；
Step 10: illustratively book end tower program installs variable amplitude rope, suspension hook, raising line, safety and limiting device are debugged, so far,
TCT7015-10E flat-top tower crane 70m arm becomes the work of 65m arm and terminates.
2. a kind of method of tower crane crane arm according to claim 1 elongated degree in the air, which is characterized in that the lifting machine
Structure maximum drawbar pull 30kN, safety coefficient 2.3.
3. a kind of method of tower crane crane arm according to claim 2 elongated degree in the air, which is characterized in that arm joint eight, nine
Gross weight 0.45t, raising line can be met the requirements with hoist pulling force 12.5kN.
4. a kind of method of tower crane crane arm according to claim 3 elongated degree in the air, which is characterized in that the pulley yoke
For guiding raising line by lifting mechanism to large arm top.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111533005B (en) * | 2020-04-17 | 2021-11-05 | 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 |
| CN111422759B (en) * | 2020-04-17 | 2021-11-09 | 中国化学工程第三建设有限公司 | Method for dismantling tower crane in narrow space |
| CN113526366B (en) * | 2021-06-11 | 2023-10-03 | 浙江省建设工程机械集团有限公司 | Multifunctional flat arm tower crane for fire fighting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1024106A1 (en) * | 1999-01-27 | 2000-08-02 | Potain | Method and device for mounting of the top of the tower of tower cranes |
| CN101759108A (en) * | 2008-12-25 | 2010-06-30 | 抚顺永茂建筑机械有限公司 | Self-disassembling device of tower crane |
| CN105621280A (en) * | 2016-03-28 | 2016-06-01 | 庄爱军 | Device and method for mounting and dismounting crane boom |
| CN106115500A (en) * | 2016-08-16 | 2016-11-16 | 中昇建机(南京)重工有限公司 | A kind of high-rise building is special to be hung and certainly tears method open from tearing formula roofing open |
| CN107055347A (en) * | 2017-05-22 | 2017-08-18 | 庄爱军 | A kind of high-rise Tower crane disassembly structures and methods installed |
-
2017
- 2017-10-30 CN CN201711035432.6A patent/CN107697817B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1024106A1 (en) * | 1999-01-27 | 2000-08-02 | Potain | Method and device for mounting of the top of the tower of tower cranes |
| CN101759108A (en) * | 2008-12-25 | 2010-06-30 | 抚顺永茂建筑机械有限公司 | Self-disassembling device of tower crane |
| CN105621280A (en) * | 2016-03-28 | 2016-06-01 | 庄爱军 | Device and method for mounting and dismounting crane boom |
| CN106115500A (en) * | 2016-08-16 | 2016-11-16 | 中昇建机(南京)重工有限公司 | A kind of high-rise building is special to be hung and certainly tears method open from tearing formula roofing open |
| CN107055347A (en) * | 2017-05-22 | 2017-08-18 | 庄爱军 | A kind of high-rise Tower crane disassembly structures and methods installed |
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| CN107697817A (en) | 2018-02-16 |
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