CN113336108A - Movable mast tool for dismantling high-altitude tower crane in cooling tower - Google Patents

Movable mast tool for dismantling high-altitude tower crane in cooling tower Download PDF

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Publication number
CN113336108A
CN113336108A CN202110430651.4A CN202110430651A CN113336108A CN 113336108 A CN113336108 A CN 113336108A CN 202110430651 A CN202110430651 A CN 202110430651A CN 113336108 A CN113336108 A CN 113336108A
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CN
China
Prior art keywords
tower
dismantling
hinged
tower crane
cold
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Pending
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CN202110430651.4A
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Chinese (zh)
Inventor
张瑞杰
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China National Chemical Engineering Third Construction Co Ltd
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China National Chemical Engineering Third Construction Co Ltd
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Priority to CN202110430651.4A priority Critical patent/CN113336108A/en
Publication of CN113336108A publication Critical patent/CN113336108A/en
Pending legal-status Critical Current

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    • 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
    • B66C23/18Cranes 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 specially adapted for use in particular purposes
    • B66C23/20Cranes 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 specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
    • B66C23/203Cranes 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 specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures with supporting couples provided by posts, e.g. scaffolding, trees or masts
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

The invention relates to a mast tool for dismantling a high-altitude movable tower crane in a cold tower, which comprises a tower crane dismantling mechanism detachably connected to a cold tower construction steel frame and used for dismantling a tower crane installed on an inter-cold tower reinforcing ring, wherein the inter-cold tower reinforcing ring is connected to the cold tower construction steel frame which is formed by connecting a plurality of cross beams and a plurality of oblique beams; the tower crane dismantling mechanism comprises a plurality of suspension main arm rods hinged on the cross beam, a plurality of supporting auxiliary arm rods hinged on the oblique beam and a mounting bracket connected to one end of each suspension main arm rod. This portable tower machine in high altitude removes uses mast instrument in cold tower, simple structure, the on-the-spot preparation installation of being convenient for, stability is good, the atress is clear and definite, convenient operation is nimble, fail safe nature is high, can accelerate the construction progress, practice thrift construction cost, when super high altitude, large-scale construction machinery construction are inconvenient, constructor utilizes the high efficiency of limited instrument to accomplish the task of dismantling and self can rely on the superior performance that the manpower was demolishd.

Description

Movable mast tool for dismantling high-altitude tower crane in cooling tower
Technical Field
The invention belongs to the technical field of high-altitude tower crane dismantling, and particularly relates to a mast tool for dismantling a high-altitude movable tower crane in a cold tower.
Background
The air cooling tower uses air as coolant to remove heat so as to reduce water temperature.
When actually building and establishing the steel structure air cooling tower, here with the example of Xinyou 2X 660MW coal electric project engineering of Xin Ji strange, the steam turbine steam extraction cooling adopts the indirect air cooling system of surface condensing type, and wherein the air cooling tower main part is the steel construction, and this engineering is: two steel structure air cooling towers are built on a 2 x 660MW unit, air cooling radiators are vertically arranged on the outer side of the air cooling tower in a circle, the steel structure tower comprises a lower cone, a cylindrical tower body, a reinforcing ring, an expanding platform, an upper tower crawling ladder, an outer aluminum protection plate and the like, the height of the steel tower is 174.99m, the diameter of the bottom of the lower cone is 151.11m, the height of the cone is 55m, the diameter of the upper cylindrical tower body is 101.8m, the height of the cylindrical tower body is 119.99m, the indirect cooling tower is formed by assembling triangular grids, the reinforcing ring, the expanding platform and the outer aluminum protection plate, the tower body is of a steel structure, the weight of a single tower body steel structure is about 8311t, the weight of a single outer aluminum protection plate is about 320t, and the tower crane is installed on the reinforcing ring of the indirect cooling tower and used for hoisting a straight section steel structure.
Two tower cranes are located on the fifth layer reinforcing ring, the height of the highest position of the tower crane is 183.304 m, the height of the eighteenth layer (the highest layer) of the tower body is 174.99m, in order to dismantle the tower crane, a device needs to be additionally erected, the height of the device needs to exceed the highest position of the tower crane by at least 1m to meet the requirement of dismantling the tower crane, the vertical height of the device for dismantling the tower crane is higher than the tower body 10.164 m, and the whole device is located at a 180 m high altitude. Because no other auxiliary machinery can safely and conveniently dismantle the tower crane at the ultra-high altitude, an auxiliary dismantling tool which is safe, reliable, labor-saving and efficient needs to be designed on site.
Disclosure of Invention
The invention aims to solve the problems and provide a mast tool for dismantling a high-altitude movable tower crane in a cold tower, which has a simple structure and reasonable design.
The invention realizes the purpose through the following technical scheme:
a mast tool for dismantling a high-altitude movable tower crane in a cold tower comprises a tower crane dismantling mechanism detachably connected to a cold tower construction steel frame and used for dismantling the tower crane installed on an inter-cold tower reinforcing ring, wherein the inter-cold tower reinforcing ring is connected to the cold tower construction steel frame which is formed by connecting a plurality of cross beams and a plurality of oblique beams;
the tower crane demolishs the mechanism and hangs main armed lever, articulates a plurality of support pair armed lever, connects at the installing support who hangs main armed lever one end, swing joint main pulley on the installing support, connect a plurality of locating support in the crossbeam upper end and connect the location cable wire between locating support and the main armed lever of hanging including articulating a plurality of on the crossbeam, the one end that supports pair armed lever is articulated with hanging main armed lever, it is connected with the head rod to support between pair armed lever and the sloping, be equipped with the connecting cable wire on the main pulley, the one end of connecting cable wire is connected with the latch hook, and the other end of connecting cable wire is connected with the hoist engine.
As a further optimization scheme of the invention, a plurality of first hinged supports are connected to the cross beam, a plurality of main suspension arm rods are respectively hinged to the first hinged supports, one ends of the main suspension arm rods are close to each other, and the main suspension arm rods and the cross beam are distributed in a triangular shape.
As a further optimization scheme of the invention, the oblique beam is connected with a plurality of second hinged brackets, one end of the first connecting rod is hinged with the second hinged brackets, and the other end of the first connecting rod is hinged with the supporting auxiliary arm rod.
As a further optimization scheme of the invention, the oblique beam is connected with a plurality of third hinged brackets, and the other end of the supporting auxiliary arm rod is hinged with the third hinged brackets.
As a further optimization scheme of the invention, the cold tower construction steel frame is connected with a plurality of auxiliary fixed pulleys, and the connecting steel cable penetrates through the plurality of auxiliary fixed pulleys.
As a further optimization scheme of the invention, second connecting rods are connected among a plurality of the auxiliary supporting arm rods, and two ends of each second connecting rod are respectively hinged with the plurality of auxiliary supporting arm rods.
As a further optimization scheme of the invention, a third connecting rod is connected between the plurality of suspension main arm rods, and two ends of the third connecting rod are respectively hinged with the plurality of suspension main arm rods.
As a further optimization scheme of the invention, the outer walls of the suspension main arm rod and the support auxiliary arm rod are respectively connected with a plurality of circular tubes, and two ends of each circular tube are respectively connected with a lug plate.
The invention has the beneficial effects that:
the invention has the advantages of simple structure, convenient on-site manufacture and installation, good stability, definite stress, convenient and flexible operation, high safety and reliability, capability of accelerating construction progress and saving construction cost, and has the superior performance that when the construction of a super-high altitude and large-scale construction machine is inconvenient, a constructor can efficiently complete a disassembly task by using a limited tool and can disassemble by depending on manpower.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view taken at A in the present invention;
FIG. 3 is a mating view of the positioning bracket and cross-beam of the present invention;
fig. 4 is a mating view of the suspension primary arm and support secondary arm of the present invention.
In the figure: 1. constructing a steel frame by the cold tower; 101. a cross beam; 102. an oblique beam; 2. an intercooling tower reinforcing ring; 3. a tower crane dismantling mechanism; 301. hanging a main arm rod; 302. supporting the auxiliary arm lever; 303. mounting a bracket; 304. a main pulley; 305. positioning the bracket; 306. positioning a steel cable; 307. an auxiliary fixed pulley; 308. a first hinge bracket; 309. a second hinge bracket; 310. a first connecting rod; 311. a latch hook; 312. a third hinged bracket; 313. connecting a steel cable; 314. a second connecting rod; 315. a third connecting rod; 4. a hoisting machine.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
The invention is exemplified by Xinyou 2X 660MW coal-electricity project engineering of Jiangqitai, the steam turbine exhaust cooling adopts a surface condensing indirect air cooling system, wherein the main body of the air cooling tower is a steel structure, and the project is as follows: two steel structure air cooling towers are built on a 2 x 660MW unit, air cooling radiators are vertically arranged on the outer side of the air cooling tower in a circle, the steel structure tower comprises a lower cone, a cylindrical tower body, a reinforcing ring, an expanding platform, an upper tower crawling ladder, an outer aluminum protection plate and the like, the height of the steel tower is 174.99m, the diameter of the bottom of the lower cone is 151.11m, the height of the cone is 55m, the diameter of the upper cylindrical tower body is 101.8m, the height of the cylindrical tower body is 119.99m, the indirect cooling tower is formed by assembling triangular grids, the reinforcing ring, the expanding platform and the outer aluminum protection plate, the tower body is of a steel structure, the weight of a single tower body steel structure is about 8311t, the weight of a single outer aluminum protection plate is about 320t, and the tower crane is installed on the reinforcing ring of the indirect cooling tower and used for hoisting a straight section steel structure.
Two tower cranes are located on the fifth layer reinforcing ring, the height of the highest position of the tower crane is 183.304 m, the height of the eighteenth layer (the highest layer) of the tower body is 174.99m, in order to dismantle the tower crane, a device needs to be additionally erected, the height of the device needs to exceed the highest position of the tower crane by at least 1m to meet the requirement of dismantling the tower crane, the vertical height of the device for dismantling the tower crane is higher than the tower body 10.164 m, and the whole device is located at a 180 m high altitude. Because no other auxiliary machinery can safely and conveniently dismantle the tower crane at the ultra-high altitude, the following safe, reliable, labor-saving and efficient auxiliary dismantling tool is designed.
Example 1
As shown in fig. 1-4, a mast tool for dismantling a high-altitude movable tower crane in a cooling tower comprises a tower crane dismantling mechanism 3 detachably connected to a cooling tower construction steel frame 1 and used for dismantling the tower crane installed on an inter-cooling tower reinforcing ring 2, the inter-cooling tower reinforcing ring 2 is connected to the cooling tower construction steel frame 1, and the cooling tower construction steel frame 1 is formed by connecting a plurality of cross beams 101 and a plurality of oblique beams 102;
the tower crane dismantling mechanism 3 comprises a plurality of suspension main arm rods 301 hinged on a cross beam 101, a plurality of support auxiliary arm rods 302 hinged on an oblique beam 102, an installation support 303 connected to one end of each suspension main arm rod 301, a main pulley 304 movably connected to the installation support 303, a plurality of positioning supports 305 connected to the upper end of the cross beam 101 and a positioning steel cable 306 connected between the positioning supports 305 and the suspension main arm rods 301, one end of each support auxiliary arm rod 302 is hinged to the suspension main arm rods 301, a first connecting rod 310 is connected between each support auxiliary arm rod 302 and the oblique beam 102, a connecting steel cable 313 is arranged on each main pulley 304, one end of each connecting steel cable 313 is connected with a lock hook 311, and the other end of each connecting steel cable 313 is connected with a winch 4. The tower crane component members are connected through the locking hooks 311, the tower crane is gradually dismantled and conveyed to the ground from the high altitude, the length of the connecting steel cable 313 is controlled through the winch 4 during dismantling, and force for hoisting the tower crane component members is provided.
Be connected with the first articulated mounting 308 of a plurality of on the crossbeam 101, a plurality of hangs main armed lever 301 and articulates respectively on the first articulated mounting 308 of a plurality of, and a plurality of hangs one end of main armed lever 301 and is close to each other, and a plurality of hangs and is triangular distribution between main armed lever 301 and the crossbeam 101. The inclined beam 102 is connected with a plurality of second hinge brackets 309, one end of a first connecting rod 310 is hinged with the second hinge brackets 309, and the other end of the first connecting rod 310 is hinged with the support sub-arm 302.
The inclined beam 102 is connected with a plurality of third hinged brackets 312, and the other end of the support auxiliary arm lever 302 is hinged with the third hinged brackets 312. The cold tower construction steel frame 1 is connected with a plurality of auxiliary fixed pulleys 307, and a connecting steel cable 313 passes through the plurality of auxiliary fixed pulleys 307. The auxiliary fixed pulley 307 is used for changing the distribution direction of the connecting steel cable 313, so that the connecting steel cable 313 is conveniently attached to the surface of the cold tower construction steel frame 1 for arrangement, and the connecting steel cable 313 is prevented from being more stable in the operation process.
A second connecting rod 314 is connected between the plurality of support sub-arm levers 302, and two ends of the second connecting rod 314 are respectively hinged with the plurality of support sub-arm levers 302. A third connecting rod 315 is connected between the plurality of suspension main arm levers 301, and two ends of the third connecting rod 315 are respectively hinged with the plurality of suspension main arm levers 301.
Two movable tower cranes on the tower top are dismantled, and the masts still need to be dismantled after the tower cranes are dismantled, so when the tower cranes are dismantled, a temporary mast needs to be erected between the tower main body and the upper tower steel ladder, and parts of the tower cranes are dismantled by using the masts. At the moment, no other hoisting equipment is used for assisting, so the mast is designed by considering the strength requirement of the mast part when the fuselage part is dismantled and considering the dismantling of the mast. The mast can be dismantled only by small machines (chain blocks and steel wire ropes) and manpower at high altitude, so that the selection of the material specifications and the installation mode of the main and auxiliary arms and other parts of the mast need to be flexible and important.
And hang main armed lever 301, support vice armed lever 302, head rod 310, first articulated support 308, second articulated support 309, third articulated support 312 and second connecting rod 314 between the body of rod all adopt articulated mode to connect, not only can adjust the contained angle between each body of rod when the construction, more conveniently carry out convenient dismantlement when dismantling.
The outer walls of the main suspension arm lever 301 and the auxiliary support arm lever 302 are connected with a plurality of round pipes, and two ends of each round pipe are connected with lifting lug plates. The lifting lug plate is used when being used for disassembling the mast tool, the mast tool can be disassembled conveniently and manually or by adopting a small tool, and the operation is flexible and convenient.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (8)

1. The utility model provides a portable tower machine in high altitude demolishs and uses mast instrument in cold tower which characterized in that: the system comprises a tower crane dismantling mechanism (3) detachably connected to a cold tower construction steel frame (1) and used for dismantling a tower crane installed on an inter-cold tower reinforcing ring (2), wherein the inter-cold tower reinforcing ring (2) is connected to the cold tower construction steel frame (1), and the cold tower construction steel frame (1) is formed by connecting a plurality of cross beams (101) and a plurality of oblique beams (102);
the tower crane dismantling mechanism (3) comprises a plurality of suspension main arm rods (301) hinged on a cross beam (101), a plurality of supporting auxiliary arm rods (302) hinged on an oblique beam (102), a mounting bracket (303) connected at one end of the suspension main arm rods (301), a main pulley (304) movably connected on the mounting bracket (303), a plurality of positioning brackets (305) connected at the upper end of the cross beam (101) and a positioning steel cable (306) connected between the positioning brackets (305) and the suspension main arm rods (301), one end of the supporting auxiliary arm lever (302) is hinged with the suspension main arm lever (301), a first connecting rod (310) is connected between the auxiliary support arm rod (302) and the oblique beam (102), the main pulley (304) is provided with a connecting steel cable (313), one end of the connecting steel cable (313) is connected with a locking hook (311), and the other end of the connecting steel cable (313) is connected with a winch (4).
2. The mast tool for dismantling the high-altitude movable tower crane in the cooling tower as claimed in claim 1, wherein: the beam (101) is connected with a plurality of first hinged supports (308), a plurality of suspension main arm rods (301) are hinged to the first hinged supports (308), one ends of the suspension main arm rods (301) are close to each other, and the suspension main arm rods (301) and the beam (101) are distributed in a triangular mode.
3. The mast tool for dismantling the high-altitude movable tower crane in the cooling tower as claimed in claim 1, wherein: the oblique beam (102) is connected with a plurality of second hinged supports (309), one end of a first connecting rod (310) is hinged to the second hinged supports (309), and the other end of the first connecting rod (310) is hinged to the supporting auxiliary arm rod (302).
4. The mast tool for dismantling the high-altitude movable tower crane in the cooling tower as claimed in claim 1, wherein: the inclined beam (102) is connected with a plurality of third hinged supports (312), and the other end of the supporting auxiliary arm rod (302) is hinged with the third hinged supports (312).
5. The mast tool for dismantling the high-altitude movable tower crane in the cooling tower as claimed in claim 1, wherein: the cold tower construction steel frame (1) is connected with a plurality of auxiliary fixed pulleys (307), and the connecting steel cable (313) penetrates through the auxiliary fixed pulleys (307).
6. The mast tool for dismantling the high-altitude movable tower crane in the cooling tower as claimed in claim 1, wherein: a second connecting rod (314) is connected between the plurality of supporting auxiliary arm rods (302), and two ends of the second connecting rod (314) are respectively hinged with the plurality of supporting auxiliary arm rods (302).
7. The mast tool for dismantling the high-altitude movable tower crane in the cooling tower as claimed in claim 1, wherein: a third connecting rod (315) is connected between the suspension main arm rods (301), and two ends of the third connecting rod (315) are respectively hinged with the suspension main arm rods (301).
8. The mast tool for dismantling the high-altitude movable tower crane in the cooling tower as claimed in claim 1, wherein: the outer walls of the suspension main arm rod (301) and the support auxiliary arm rod (302) are connected with a plurality of round pipes, and two ends of each round pipe are connected with lifting lug plates.
CN202110430651.4A 2021-04-21 2021-04-21 Movable mast tool for dismantling high-altitude tower crane in cooling tower Pending CN113336108A (en)

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CN202110430651.4A CN113336108A (en) 2021-04-21 2021-04-21 Movable mast tool for dismantling high-altitude tower crane in cooling tower

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114809571A (en) * 2022-04-22 2022-07-29 中国建筑第二工程局有限公司 Method for lifting high-altitude operation platform by adopting carrying pole beam

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EP0517997A1 (en) * 1991-06-11 1992-12-16 FAC Frank Abels Consulting & Technology GmbH Small dismountable and displaceable crane for use on construction sites
CN201458596U (en) * 2009-08-14 2010-05-12 河北省电力建设第一工程公司 Crane with self-dismounting device
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CN111422759A (en) * 2020-04-17 2020-07-17 中国化学工程第三建设有限公司 Method for dismantling tower crane in narrow space

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114809571A (en) * 2022-04-22 2022-07-29 中国建筑第二工程局有限公司 Method for lifting high-altitude operation platform by adopting carrying pole beam
CN114809571B (en) * 2022-04-22 2023-09-19 中国建筑第二工程局有限公司 Method for lifting high-altitude operation platform by adopting shoulder pole beam

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Application publication date: 20210903