CN103861901B - The curved preparation method of the oval manhole door Spot Cooling of steel column - Google Patents
The curved preparation method of the oval manhole door Spot Cooling of steel column Download PDFInfo
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- CN103861901B CN103861901B CN201210541118.6A CN201210541118A CN103861901B CN 103861901 B CN103861901 B CN 103861901B CN 201210541118 A CN201210541118 A CN 201210541118A CN 103861901 B CN103861901 B CN 103861901B
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Abstract
The present invention relates to the oval manhole door of steel column.The curved preparation method of the oval manhole door Spot Cooling of a kind of steel column, it comprises: one, clod wash internal model making, and this clod wash mold comprises a semicircle baffle plate and a straight baffle plate; Be placed on scene, driving or portal jib crane walking are across interior; At both sides, steel plate one end to be processed welding stiffened panel, perforate on stiffened panel; Two fixing points are set about ground clod wash mold at the scene, and connect fixed pulley; The other end of the steel plate to be processed through step 3 process is inserted between the semicircle baffle plate of clod wash mold and straight baffle plate; Be connected on the hole as reinforcement with steel cable, the other end walks around fixed pulley connection driving or portal jib crane hook pulls steel plate one end to be processed to be bent downwardly; Pull down steel wire rope, be connected on another fixed pulley, steel plate bending to be processed is put in place; Another steel plate bending; Be shaped completing two bending steel plate splicings, and be welded to connect.The present invention is simple for production, and ensure that the making duration.
Description
Technical field
The present invention relates to the oval manhole door of steel column, particularly relate to the preparation method of the oval manhole door of steel column.
Background technology
All be designed with various visit passage and travelling crane inspection passage in various structural steel industrial building now, and this type of passage is often arranged in steel column system, for guarantee personnel walk unimpeded, usual design all requires to design manhole in solid-web steel column.This type of manhole is generally oval (two ends are a semi-circular structure, and middle part is rectangle), therefore needs to bend elliptical manhole in steel upper prop manufacturing process.For the making of this class formation, usually adopt fire bending curved and bend in conjunction with mechanical external force or use professional roller mill to carry out machinery and bend.The former complex process, steel plate heating-up temperature cannot accurately control, and simmering and bending hot spot is difficult to accurately determine, oval molding effect and perception are all poor, and fabrication cycle is longer, are not suitable for batch making; Use roller mill bends, and needs to be equipped with professional roller mill, and drop into excessive, field fabrication does not satisfy the requirements, if entrust professional factory to bend specially manhole plate, turn increase cost of manufacture, and fabrication cycle is long.
Summary of the invention
The present invention is intended to address the aforementioned drawbacks, and provides the oval manhole door Spot Cooling of a kind of steel column curved preparation method.The present invention is simple for production, utilizes existing appointed condition, reaches the object that batch bent, accurately bent elliptical manhole plate, and ensure that the making duration.
For solving the problem, the curved preparation method of the present invention's oval manhole door Spot Cooling of a kind of steel column, it comprises:
Step one, clod wash internal model making, this clod wash mold comprises a semicircle baffle plate and a straight baffle plate, and the radian of described semicircle baffle plate is determined according to people's bore ends semicircle diameter to be processed;
Step 2, clod wash mold step one made is placed on scene, and driving or portal jib crane walking are across interior;
Step 3, at both sides, steel plate one end to be processed welding stiffened panel, perforate on stiffened panel;
Step 4, arranges two fixing points at the scene about ground clod wash mold, and connects a fixed pulley;
Step 5, inserts between the semicircle baffle plate of clod wash mold and straight baffle plate by the other end of the steel plate to be processed through step 3 process; Be connected on the hole as reinforcement with steel cable, the other end is walked around fixed pulley and is connected driving or portal jib crane hook; Driving or portal jib crane start, and pull steel plate one end to be processed to bend downward into 40 ° ~ 50 °;
Step 6, pulls down steel wire rope, is connected on another fixed pulley, utilizes driving or portal jib crane to be put in place by steel plate bending to be processed;
Step 7, repeats step 5 and six, another steel plate bending;
Step 8, is shaped completing two bending steel plate splicings, and is welded to connect.
Present invention efficiently solves batch, accurately bend the making difficult point of elliptical manhole plate.Conventional fire bending kinking conjunction mechanical external force bends method and professional roller mill bends method, and early investment is large, complex process, cost of manufacture are high, fabrication cycle is long.Method of the present invention efficiently solves on-the-spot batch, accurately bends the practical challenges of this type of Long Circle manhole plate, avoids Large-scale professional equipment investment, greatly reduces the cost of manufacture of this operation, and ensure that fabrication cycle.The present invention is easy to make, economical and practical.
Accompanying drawing explanation
Below, the present invention is further illustrated by reference to the accompanying drawings:
Fig. 1-Fig. 2 is clod wash schematic diagram of the present invention.
Detailed description of the invention
As depicted in figs. 1 and 2, the curved preparation method of the present invention's oval manhole door Spot Cooling of a kind of steel column, it comprises:
Step one, clod wash internal model making, this clod wash mold comprises a semicircle baffle plate 2 and baffle plate 3 always, and the radian of described semicircle baffle plate is determined according to people's bore ends semicircle diameter to be processed;
Step 2, the clod wash mold 1 step one made is placed on scene, and driving or portal jib crane walking are across interior;
Step 3, at both sides, steel plate 4 one end to be processed welding stiffened panel 7, perforate on stiffened panel;
Step 4, arranges two fixing points 5,6 at the scene about ground clod wash mold, and connects a fixed pulley;
Step 5, inserts between the semicircle baffle plate 2 of clod wash mold, straight baffle plate 3 by the other end of the steel plate to be processed through step 3 process; Be connected on the hole of stiffened panel with steel cable, the other end is walked around fixing point 5 fixed pulley and is connected driving or portal jib crane hook; Driving or portal jib crane start, and pull steel plate one end to be processed to bend downward into 40 ° ~ 50 ° (see Fig. 1);
Step 6, pulls down steel wire rope, is connected on another fixing point 6 fixed pulley, utilizes driving or portal jib crane to put steel plate bending to be processed in place (see Fig. 2);
Step 7, repeats step 5 and six, another steel plate bending;
Step 8, is shaped completing two bending steel plate splicings, and is welded to connect.
Claims (1)
1. the curved preparation method of the oval manhole door Spot Cooling of steel column, it is characterized in that, it comprises:
Step one, clod wash internal model making, this clod wash mold comprises a semicircle baffle plate and baffle plate always, and the radian of described semicircle baffle plate is determined according to people's bore ends semicircle diameter to be processed;
Step 2, clod wash mold step one made is placed on scene, and driving or portal jib crane walking are across interior;
Step 3, at both sides, steel plate one end to be processed welding stiffened panel, perforate on stiffened panel;
Step 4, arranges two fixing points at the scene, and connects fixed pulley about ground clod wash mold;
Step 5, inserts between the semicircle baffle plate of clod wash mold and straight baffle plate by the other end of the steel plate to be processed through step 3 process; Be connected on the hole of stiffened panel with steel cable, the other end is walked around fixed pulley and is connected driving or portal jib crane hook; Driving or portal jib crane start, and pull steel plate one end to be processed to bend downward into 40 ° ~ 50 °;
Step 6, pulls down steel wire rope, is connected on another fixed pulley, utilizes driving or portal jib crane to be put in place by steel plate bending to be processed;
Step 7, repeats step 5 and six, another steel plate bending;
Step 8, is shaped completing two bending steel plate splicings, and is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210541118.6A CN103861901B (en) | 2012-12-14 | 2012-12-14 | The curved preparation method of the oval manhole door Spot Cooling of steel column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210541118.6A CN103861901B (en) | 2012-12-14 | 2012-12-14 | The curved preparation method of the oval manhole door Spot Cooling of steel column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103861901A CN103861901A (en) | 2014-06-18 |
| CN103861901B true CN103861901B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210541118.6A Active CN103861901B (en) | 2012-12-14 | 2012-12-14 | The curved preparation method of the oval manhole door Spot Cooling of steel column |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11014225B2 (en) | 2017-12-15 | 2021-05-25 | Alfonso GARCIA MIRO PESCHIERA | Workbench for the cold intervention, folding, bending, twisting or deformation of metal plates or sheets |
| CN113334034B (en) * | 2021-07-07 | 2022-06-14 | 南京科技职业学院 | Manufacturing method of eccentric suspension post |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171628A (en) * | 1993-12-20 | 1995-07-11 | Kanai Hiroyuki | Method for forming cylindrical work out of flat sheet |
| RO119825B1 (en) * | 2002-12-16 | 2005-04-29 | Prompt-S.A. | Main beam |
| CN201644641U (en) * | 2010-03-18 | 2010-11-24 | 上海江南长兴重工有限责任公司 | Gasket mould for bending thick plate for ship |
| CN101898207A (en) * | 2010-07-12 | 2010-12-01 | 燕山大学 | Four-point bending progressive die forming method for large straight seam pipe blank |
| CN202493638U (en) * | 2012-03-14 | 2012-10-17 | 福州铭林钢塔钢构制造有限公司 | Transmission mechanism of manhole ring brake bending machine |
-
2012
- 2012-12-14 CN CN201210541118.6A patent/CN103861901B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171628A (en) * | 1993-12-20 | 1995-07-11 | Kanai Hiroyuki | Method for forming cylindrical work out of flat sheet |
| RO119825B1 (en) * | 2002-12-16 | 2005-04-29 | Prompt-S.A. | Main beam |
| CN201644641U (en) * | 2010-03-18 | 2010-11-24 | 上海江南长兴重工有限责任公司 | Gasket mould for bending thick plate for ship |
| CN101898207A (en) * | 2010-07-12 | 2010-12-01 | 燕山大学 | Four-point bending progressive die forming method for large straight seam pipe blank |
| CN202493638U (en) * | 2012-03-14 | 2012-10-17 | 福州铭林钢塔钢构制造有限公司 | Transmission mechanism of manhole ring brake bending machine |
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| CN103861901A (en) | 2014-06-18 |
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