CN113979280B - Cone cover manufacturing and processing method - Google Patents
Cone cover manufacturing and processing method Download PDFInfo
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- CN113979280B CN113979280B CN202111312727.XA CN202111312727A CN113979280B CN 113979280 B CN113979280 B CN 113979280B CN 202111312727 A CN202111312727 A CN 202111312727A CN 113979280 B CN113979280 B CN 113979280B
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- lifting
- flat plate
- loop
- radial
- perforations
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
Abstract
The invention discloses a conical cover manufacturing and processing method, which comprises the steps of firstly calculating to obtain the tiling size of a conical cover to be constructed; according to the tiling size in proper order tiling bar steel sheet and welding the tiling board that forms fan annular shape, then be radial welding radial roof beam on the tiling board according to the centre of a circle that the circular arc limit in tiling board is located is the centre, and weld hoist and mount otic placode on radial roof beam, wear to be equipped with hoist and mount earhole on the hoist and mount otic placode, acquire the hoist, the hoist includes the ring cover, the one end of ring cover is around being equipped with evenly spaced string perforation, the other end is around being equipped with evenly spaced hoist and mount perforation, every hoist and mount perforation passes has the lifting rope, the both ends of lifting rope are hung respectively on two hoist and mount earholes on corresponding radial roof beam, hoist by crane, utilize chain block messenger's fan ring both ends taut welding together of tiling board, form the toper lid, then weld the secondary joist at the surface of toper lid, set up operation platform in the toper lid is inside at last, full weld to all inboard seams of toper lid.
Description
Technical Field
The invention relates to the field of steel structure processing, in particular to a conical cover manufacturing and processing method.
Background
In some large tank structures, the upper part of the tank structure adopts a conical cover structure, the main framework of the conical cover is a section steel framework, the material is Q235B, the thickness of the lining plate is 5mm, and the height of the cone is more than several meters. The conical cover formed by welding the common steel skeleton and the steel plate is made by adopting a steel structure to form a space cone supporting structure with the shape identical to that of the conical cover, and the conical cover is attached to the conical surface of the supporting structure to carry out lofting manufacture. However, the construction or construction of such a space cone supporting structure is extremely large in engineering quantity, extremely long in construction period time, extremely high in precision requirement for erecting the cone supporting structure and extremely high in construction and labor cost.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: how to provide a conical cover manufacturing and processing method capable of reducing construction and labor cost, reducing manufacturing difficulty and shortening manufacturing period.
In order to solve the technical problems, the invention adopts the following technical scheme:
a conical cover manufacturing and processing method comprises the following steps:
(1) According to the space size of the conical cover to be constructed, calculating to obtain the tiling size of the conical cover to be constructed;
(2) A plurality of strip-shaped steel plates are obtained, the strip-shaped steel plates are sequentially paved together to form a fan-shaped annular paved plate according to the paved size of the conical cover, and full welding is carried out on the upper side joint between two adjacent strip-shaped plates;
(3) Drawing radial beam positioning lines extending radially on the upper surface of the flat plate and taking the center of a circle where the outer circular arc edge of the flat plate is located as the center, obtaining a plurality of radial beams, correspondingly welding and connecting each radial beam on the upper surface of the flat plate according to the radial beam positioning lines, connecting the radial beams and the flat plate in a discontinuous welding mode, respectively extending the two ends of the radial beams to the inner circular arc edge and the outer circular arc edge of the flat plate, welding and lifting lugs on one side of the radial Liang Beixiang flat plate and respectively positioned at a quarter position from the two ends of the radial beams, arranging lifting lugs on the lifting lugs in a penetrating manner, welding and adjusting lugs on the upper surface of the flat plate and at positions close to the two ends of a fan ring of the flat plate, and arranging adjusting lugs on the adjusting lugs in a penetrating manner;
(4) The method comprises the steps that a lifting appliance is obtained, the lifting appliance comprises a loop, hanging rope perforations and hanging rope perforations are formed in a loop body of the loop at intervals along the direction of a loop center line, the number of the hanging rope perforations is four, the hanging rope perforations are uniformly arranged at intervals around the direction of the loop center line, the hanging rope perforations extend along the direction of the loop, the number of the hanging rope perforations is consistent with the number of radial beams, the hanging rope perforations are uniformly arranged at intervals around the direction of the loop center line, the hanging rope perforations extend along the direction of the loop, reinforcing ribs which are arranged on the inner wall of the loop and are positioned between the hanging rope perforations and are fixedly connected with the reinforcing ribs which are arranged along the same center line with the loop, and the reinforcing ribs are positioned in the middle position of the loop along the direction of the loop center line;
(5) Lifting is carried out by using a crane, the lifting hooks of the crane are respectively connected with four rope hanging perforations through equal length of the rope hanging perforations, then a plurality of lifting ropes with the same length are obtained, the number of the lifting ropes is the same as that of the lifting rope perforations, each lifting lug correspondingly penetrates through one lifting rope, each lifting rope sequentially corresponds to one radial beam, the two ends of each lifting rope are respectively fixedly connected with a hook, and the hooks at the two ends of each lifting rope are respectively hooked on two lifting lug holes on the corresponding radial beam;
(6) Lifting the flat plate upwards, forming a conical shape by utilizing the self weight of the flat plate, arranging chain blocks between the adjusting lug plates at two sides, respectively hooking two ends of the chain blocks on the adjusting lug holes at two sides, pulling and abutting two ends of a fan ring of the flat plate towards opposite directions through the chain blocks, and fully welding upper side seams between the two ends of the fan ring of the flat plate to form a conical cover;
(7) The roundness of the orifices at the upper end and the lower end of the conical cover is adjusted, and then secondary keels are welded on the outer surface of the conical cover and positioned between two adjacent radial beams in sequence along the extending direction of an installation space formed between the two adjacent radial beams;
(8) And setting up an operation platform in the conical cover, and fully welding all inner side joints on the inner side of the conical cover.
The conical cover is set to be a plurality of strip-shaped plates with limited space, and the self weight of the strip-shaped plates is utilized to form a conical space skeleton in a crane lifting mode, so that the difficult problem of manufacturing and forming of special-shaped spaces is solved; the lifting lug plates are distributed on each radial beam, so that each strip-shaped plate of the conical cover is uniformly stressed, and gaps among the plates are the same, thereby ensuring the quality of the conical surface; and the lifting ropes which are uniformly distributed on the lifting appliance are hung with the two lifting lug holes after penetrating through the holes of the lifting ropes, so that the conical cover is accepted more uniformly in the lifting process, the lifting stability of a crane is ensured, and meanwhile, the assembly precision of the conical surface is also ensured.
In summary, the beneficial effects of the invention are as follows: the invention has simple and convenient construction, reduces construction and labor cost while ensuring construction quality, reduces manufacturing difficulty, shortens manufacturing period and improves economic benefit.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a top view of the present invention after the radial beam weld is completed;
FIG. 2 is a cross-sectional view of the spreader of the present invention;
fig. 3 is a schematic view of crane lifting in the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The conical cover manufacturing and processing method in the specific embodiment comprises the following steps:
(1) According to the space size of the conical cover to be constructed, calculating to obtain the tiling size of the conical cover to be constructed;
(2) Obtaining a plurality of strip steel plates 5, sequentially tiling the strip steel plates 5 together according to the tiling size of the conical cover to form a fanned annular tiling plate, and fully welding the upper side joint between two adjacent strip plates;
(3) Drawing radial beam 6 positioning lines extending radially on the upper surface of the flat plate and taking the center of a circle where the outer circular arc edge of the flat plate is located as the center, obtaining a plurality of radial beams 6, correspondingly welding and connecting each radial beam 6 on the upper surface of the flat plate according to the radial beam 6 positioning lines, connecting the radial beams 6 and the flat plate in a discontinuous welding mode, respectively extending the two ends of the radial beams 6 to the inner circular arc edge and the outer circular arc edge of the flat plate, welding lifting lugs on one side of the radial beams 6 facing away from the flat plate and respectively positioned at a quarter position from the two ends of the radial beams 6, welding adjusting lugs on the upper surface of the flat plate and near the two ends of a fan ring of the flat plate, and punching adjusting lugs on the adjusting lugs;
(4) The method comprises the steps that a lifting appliance is obtained, as shown in fig. 2, the lifting appliance comprises a loop 1, hanging rope perforations 2 and lifting rope perforations 3 are arranged on a sleeve body of the loop 1 at intervals along the direction of the center line of the loop, the number of the hanging rope perforations 2 is four and are uniformly arranged at intervals along the direction of the center line of the loop 1, the hanging rope perforations 2 are arranged in an extending mode along the radial direction of the loop 1, the number of the lifting rope perforations 3 is consistent with the number of radial beams 6 and are uniformly arranged at intervals along the direction of the center line of the loop 1, the lifting rope perforations 3 are arranged in an extending mode along the radial direction of the loop 1, reinforcing ribs 4 which are arranged at the same center line as the loop 1 are fixedly connected to the positions, located between the hanging rope perforations 2 and the lifting rope perforations 3, of the inner wall of the loop 1, and the reinforcing ribs 4 are located at the middle positions, along the direction of the center line of the loop 1, of the loop 1;
(5) Lifting is carried out by using a crane, the lifting hooks of the crane are respectively connected with four rope hanging perforations through equal length of the rope hanging perforations, then a plurality of lifting ropes with the same length are obtained, the number of the lifting ropes is the same as that of the lifting rope perforations, each lifting lug correspondingly penetrates through one lifting rope, each lifting rope sequentially corresponds to one radial beam 6, the two ends of each lifting rope are respectively fixedly connected with a hook, and the hooks at the two ends of each lifting rope are respectively hooked on two lifting lug holes corresponding to the radial beam 6, as shown in figure 3;
(6) Lifting the flat plate upwards, forming a conical shape by utilizing the self weight of the flat plate, arranging chain blocks between the adjusting lug plates at two sides, respectively hooking two ends of the chain blocks on the adjusting lug holes at two sides, pulling and abutting two ends of a fan ring of the flat plate towards opposite directions through the chain blocks, and fully welding upper side seams between the two ends of the fan ring of the flat plate to form a conical cover;
(7) The roundness of the orifices at the upper end and the lower end of the conical cover is adjusted, and then the secondary keels are welded on the outer surface of the conical cover and positioned between two adjacent radial beams 6 in sequence along the extending direction of the installation space formed between the two adjacent radial beams 6;
(8) And setting up an operation platform in the conical cover, and fully welding all inner side joints on the inner side of the conical cover.
In the concrete implementation process, the whole obtuse triangle shape that is of hoist and mount otic placode, the adjacent one side fixed connection of obtuse angle is in among the hoist and mount otic placode on the radial roof beam 6, hoist and mount otic placode place the plane respectively with the central line of radial roof beam 6 and the centre of a circle that the outside circular arc limit of flat board place are located the coplanar, hoist and mount earhole is located hoist and mount otic placode is kept away from the acute angle department of radial roof beam 6 direction.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be understood that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (1)
1. A conical cover manufacturing and processing method is characterized in that: the method comprises the following steps:
(1) According to the space size of the conical cover to be constructed, calculating to obtain the tiling size of the conical cover to be constructed;
(2) A plurality of strip-shaped steel plates are obtained, the strip-shaped steel plates are sequentially paved together to form a fan-shaped annular paved plate according to the paved size of the conical cover, and full welding is carried out on the upper side joint between two adjacent strip-shaped plates;
(3) Drawing radial beam positioning lines extending radially on the upper surface of the flat plate and taking the center of a circle where the outer circular arc edge of the flat plate is located as the center, obtaining a plurality of radial beams, correspondingly welding and connecting each radial beam on the upper surface of the flat plate according to the radial beam positioning lines, connecting the radial beams and the flat plate in a discontinuous welding mode, respectively extending the two ends of the radial beams to the inner circular arc edge and the outer circular arc edge of the flat plate, welding and lifting lugs on one side of the radial Liang Beixiang flat plate and respectively positioned at a quarter position from the two ends of the radial beams, arranging lifting lugs on the lifting lugs in a penetrating manner, welding and adjusting lugs on the upper surface of the flat plate and at positions close to the two ends of a fan ring of the flat plate, and arranging adjusting lugs on the adjusting lugs in a penetrating manner;
(4) The method comprises the steps that a lifting appliance is obtained, the lifting appliance comprises a loop, hanging rope perforations and hanging rope perforations are formed in a loop body of the loop at intervals along the direction of a loop center line, the number of the hanging rope perforations is four, the hanging rope perforations are uniformly arranged at intervals around the direction of the loop center line, the hanging rope perforations extend along the direction of the loop, the number of the hanging rope perforations is consistent with the number of radial beams, the hanging rope perforations are uniformly arranged at intervals around the direction of the loop center line, the hanging rope perforations extend along the direction of the loop, reinforcing ribs which are arranged on the inner wall of the loop and are positioned between the hanging rope perforations and are fixedly connected with the reinforcing ribs which are arranged along the same center line with the loop, and the reinforcing ribs are positioned in the middle position of the loop along the direction of the loop center line;
(5) Lifting is carried out by using a crane, the lifting hooks of the crane are respectively connected with four rope hanging perforations through equal length of the rope hanging perforations, then a plurality of lifting ropes with the same length are obtained, the number of the lifting ropes is the same as that of the lifting rope perforations, each lifting lug correspondingly penetrates through one lifting rope, each lifting rope sequentially corresponds to one radial beam, the two ends of each lifting rope are respectively fixedly connected with a hook, and the hooks at the two ends of each lifting rope are respectively hooked on two lifting lug holes on the corresponding radial beam;
(6) Lifting the flat plate upwards, forming a conical shape by utilizing the self weight of the flat plate, arranging chain blocks between the adjusting lug plates at two sides, respectively hooking two ends of the chain blocks on the adjusting lug holes at two sides, pulling and abutting two ends of a fan ring of the flat plate towards opposite directions through the chain blocks, and fully welding upper side seams between the two ends of the fan ring of the flat plate to form a conical cover;
(7) The roundness of the orifices at the upper end and the lower end of the conical cover is adjusted, and then secondary keels are welded on the outer surface of the conical cover and positioned between two adjacent radial beams in sequence along the extending direction of an installation space formed between the two adjacent radial beams;
(8) And setting up an operation platform in the conical cover, and fully welding all inner side joints on the inner side of the conical cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312727.XA CN113979280B (en) | 2021-11-08 | 2021-11-08 | Cone cover manufacturing and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312727.XA CN113979280B (en) | 2021-11-08 | 2021-11-08 | Cone cover manufacturing and processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113979280A CN113979280A (en) | 2022-01-28 |
| CN113979280B true CN113979280B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111312727.XA Active CN113979280B (en) | 2021-11-08 | 2021-11-08 | Cone cover manufacturing and processing method |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100817229B1 (en) * | 2006-12-28 | 2008-03-27 | 두산중공업 주식회사 | Lifting device for cone of electric generator and fabricating method thereof |
| CN101324146A (en) * | 2008-08-11 | 2008-12-17 | 河北建工集团有限责任公司 | Construction method for hanging wide span arcuated open-web beam |
| JP2012180195A (en) * | 2011-03-02 | 2012-09-20 | Sumitomo Heavy Industries Engineering-Service Co Ltd | Hoisting accessory for crane |
| WO2014117324A1 (en) * | 2013-01-29 | 2014-08-07 | 中国十七冶集团有限公司 | Method of loading and unloading slender-type pressure connection strip and apparatus therefor |
| CN104759856A (en) * | 2015-04-22 | 2015-07-08 | 中国一冶集团有限公司 | Manufacturing and installing method for upper cone on dry quenching furnace shell |
| CN107999726A (en) * | 2017-12-12 | 2018-05-08 | 合肥科烨电物理设备制造有限公司 | The production method of abnormity cone radiation protection leaded steel composite construction |
| CN211218367U (en) * | 2019-12-18 | 2020-08-11 | 湘潭华进重装有限公司 | Combined dovetail guide expanding cone |
-
2021
- 2021-11-08 CN CN202111312727.XA patent/CN113979280B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100817229B1 (en) * | 2006-12-28 | 2008-03-27 | 두산중공업 주식회사 | Lifting device for cone of electric generator and fabricating method thereof |
| CN101324146A (en) * | 2008-08-11 | 2008-12-17 | 河北建工集团有限责任公司 | Construction method for hanging wide span arcuated open-web beam |
| JP2012180195A (en) * | 2011-03-02 | 2012-09-20 | Sumitomo Heavy Industries Engineering-Service Co Ltd | Hoisting accessory for crane |
| WO2014117324A1 (en) * | 2013-01-29 | 2014-08-07 | 中国十七冶集团有限公司 | Method of loading and unloading slender-type pressure connection strip and apparatus therefor |
| CN104759856A (en) * | 2015-04-22 | 2015-07-08 | 中国一冶集团有限公司 | Manufacturing and installing method for upper cone on dry quenching furnace shell |
| CN107999726A (en) * | 2017-12-12 | 2018-05-08 | 合肥科烨电物理设备制造有限公司 | The production method of abnormity cone radiation protection leaded steel composite construction |
| CN211218367U (en) * | 2019-12-18 | 2020-08-11 | 湘潭华进重装有限公司 | Combined dovetail guide expanding cone |
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| Publication number | Publication date |
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| CN113979280A (en) | 2022-01-28 |
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