CN103861901A - Steel column oval man hole door on-the-spot cold bending manufacturing method - Google Patents
Steel column oval man hole door on-the-spot cold bending manufacturing method Download PDFInfo
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- CN103861901A CN103861901A CN201210541118.6A CN201210541118A CN103861901A CN 103861901 A CN103861901 A CN 103861901A CN 201210541118 A CN201210541118 A CN 201210541118A CN 103861901 A CN103861901 A CN 103861901A
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Abstract
The invention relates to a steel column oval man hole door. The steel column oval man hole door on-the-spot cold bending manufacturing method comprises manufacturing a cold bending mold which comprises a semi-circular baffled plate and a straight baffle plate; placing the cold bending cold on site and enabling a travelling or a gantry crane to walk inside; welding stiffened plates on bilateral sides at one end of a to-be-machined steel plate and forming holes in the stiffened plates; arranging two fixing points at the left side and the right side of the on-the-spot ground cold bending mold and connecting a fixed pulley; inserting the other end of the machined steel plate between the semi-circular baffle plate and the straight baffle plate; connecting a steel rope to the holes of the stiffened plates and enabling one end of the steel rope to bypass the fixed pulley to be connected to the travelling crane or a portal crane hook to pull one end of the to-be-machined steel plate to bend downward; disassembling the steel rope, connecting to the other fixed pulley and bending the to-be-machined steel plate to be in place; bending the other steel plate; splicing the two steel plates which achieve bending and welding and connecting. The steel column oval man hole door on-the-spot cold bending manufacturing method enables manufacture to be easy and guarantees the manufacturing period.
Description
Technical field
The present invention relates to the oval manhole door of steel column, relate in particular to the preparation method of the oval manhole door of steel column.
Background technology
In various steel construction industrial premises, be all designed with various visit passages and travelling crane inspection passage now, and this type of passage is often arranged in steel column system, for guarantee personnel walk unimpededly, conventionally 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 in steel upper prop manufacturing process, needs to bend elliptical manhole.For the making of this class formation, conventionally adopt fire bending curved and bend or use professional roller mill to carry out machinery in conjunction with mechanical external force to bend.The former complex process, steel plate heating-up temperature cannot accurately be controlled, and simmering and bending hot spot is difficult to accurately determine, and oval molding effect and perception are all poor, and fabrication cycle is longer, is not suitable for batch making; Use roller mill bends, and need to be equipped with professional roller mill, drops into excessively, and field fabrication does not more satisfy the requirements, if entrust professional factory to bend specially manhole plate, increased again 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 batch and bends, accurately bends the object of elliptical manhole plate, and ensured the making duration.
For addressing the above problem, the curved preparation method of the present invention's oval manhole door Spot Cooling of a kind of steel column, it comprises:
Step 6, pulls down steel wire rope, is connected on another fixed pulley, utilizes driving or portal jib crane that steel plate bending to be processed is put in place;
Step 7, repeating step five and six, bending another steel plate;
Step 8, is shaped completing two bending steel plate splicings, and is welded to connect.
The present invention has solved in batches, has accurately bent the making difficult point of elliptical manhole plate effectively.Conventional fire bending kinking closes that mechanical external force bends method and professional roller mill bends method, and early investment is large, complex process, cost of manufacture is high, fabrication cycle is long.Method of the present invention has effectively solved on-the-spot batch, has accurately bent the practical challenges of this type of Long Circle manhole plate, has avoided large-scale professional equipment to drop into, and greatly reduces the cost of manufacture of this operation, and has ensured fabrication cycle.The present invention is easy to make, economical and practical.
Brief description of the drawings
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 6, pulls down steel wire rope, is connected on another drum fixed point 6 fixed pulleys, utilizes driving or portal jib crane by steel plate bending to be processed put in place (referring to Fig. 2);
Step 7, repeating step five and six, bending another steel plate;
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, is characterized in that, it comprises:
Step 1, clod wash internal model making, this clod wash mold comprises a semicircle baffle plate and baffle plate always, 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 that step 1 is made is placed on scene, and driving or portal jib crane are walked across interior;
Step 3, in welding stiffened panel in both sides, steel plate one end to be processed, perforate on stiffened panel;
Step 4, ground clod wash mold left and right arranges two fixing points at the scene, and connects fixed pulley;
Step 5, inserts the other end of the steel plate to be processed through step 3 processing between the semicircle baffle plate and straight baffle plate of clod wash mold; Be connected to steel cable on the hole of stiffened panel, 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 to be processed one end 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 that steel plate bending to be processed is put in place;
Step 7, repeating step five and six, bending another steel plate;
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 true CN103861901A (en) | 2014-06-18 |
| CN103861901B CN103861901B (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN103861901B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019117734A1 (en) | 2017-12-15 | 2019-06-20 | Garcia Miro Peschiera Alfonso | Workbench for the cold intervention, folding, bending, twisting or deformation of metal plates or sheets |
| CN113334034A (en) * | 2021-07-07 | 2021-09-03 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019117734A1 (en) | 2017-12-15 | 2019-06-20 | Garcia Miro Peschiera Alfonso | Workbench for the cold intervention, folding, bending, twisting or deformation of metal plates or sheets |
| CN113334034A (en) * | 2021-07-07 | 2021-09-03 | 南京科技职业学院 | Manufacturing method of eccentric suspension post |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103861901B (en) | 2016-02-03 |
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