CN110586771A - Large-diameter pipeline pipe bending device and pipe bending method - Google Patents
Large-diameter pipeline pipe bending device and pipe bending method Download PDFInfo
- Publication number
- CN110586771A CN110586771A CN201911045560.8A CN201911045560A CN110586771A CN 110586771 A CN110586771 A CN 110586771A CN 201911045560 A CN201911045560 A CN 201911045560A CN 110586771 A CN110586771 A CN 110586771A
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- vertical rib
- plate
- tire mold
- pipeline
- arc
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- 238000005452 bending Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to the field of pipe bending, in particular to a large-diameter pipe bending device and a pipe bending method, which comprise an outer tire mold, an inner tire mold and a working platform, wherein the outer tire mold comprises a first connecting arc plate and first vertical rib plates, the first vertical rib plates are arranged in an arc structure, the tops of the first vertical rib plates are connected through the first connecting arc plate, the inner side of each first vertical rib plate is provided with a semicircular notch, and the top of the outer tire mold is provided with a first slide way; the inner mould comprises an arc-shaped side plate, a second connecting arc plate and a second vertical rib plate, the inner side of the second vertical rib plate is connected through the arc-shaped side plate, a semicircular notch is formed in the outer side of the second vertical rib plate, the top and the bottom of the first vertical rib plate are connected through the second connecting arc plate respectively, a jack plate is arranged on the arc-shaped side plate, and a second slide way is formed in the top of the inner mould. The device is applied to bending of the steel structure pipeline, solves the problem of manufacturing the large-diameter pipeline bent pipe on a construction site, is simple to manufacture, low in cost, recyclable and suitable for on-site manufacturing and processing.
Description
Technical Field
The invention relates to the field of bending of pipelines, in particular to a large-diameter pipeline bending device and a large-diameter pipeline bending method.
Background
The increase of deformed steel structures is increasing day by day, and bending of large-diameter pipelines appears in the manufacturing of pipe trusses. The large-diameter pipe bending device mainly comprises a medium-frequency pipe bending machine, the medium-frequency pipe bending machine is high in cost, suitable for industrial large-batch processing and not suitable for pipe bending processing on a construction site, and the medium-frequency pipe bending machine is obviously large in wave wrinkles at an arcing position, so that the appearance quality of a product is seriously influenced.
Disclosure of Invention
The device is relatively simple in manufacturing and operability, safe and reliable, low in manufacturing cost and good in pipe bending effect.
The invention adopts the following technical scheme:
a large-diameter pipeline pipe bending device comprises an outer tire mold, an inner tire mold and a working platform, wherein the outer tire mold comprises a first connecting arc plate and a plurality of first vertical rib plates which are arranged at equal intervals, the first vertical rib plates are arranged in an arc structure and fixed on the working platform, the tops of the first vertical rib plates are connected through the first connecting arc plate, the inner sides of the first vertical rib plates are provided with semicircular notches, and the top of the outer tire mold is provided with a first slide way; the inner mould comprises an arc-shaped side plate, a second vertical rib plate is arranged at intervals of a second connecting arc plate and a plurality of blocks, the inner side of the second vertical rib plate is connected through the arc-shaped side plate, each second vertical rib plate corresponds to one first vertical rib plate, a semicircular notch is arranged on the outer side of each second vertical rib plate, the top and the bottom of each first vertical rib plate are connected through the second connecting arc plate respectively, a jack plate is arranged on the arc-shaped side plate, and a second slide way is arranged at the top of the inner mould.
Compared with the prior art, the device has the beneficial effects that:
the device has the advantages of simple structure, low manufacturing cost, capability of recycling and bending the steel structure pipeline, and high working efficiency.
Further, the device adopts the following preferred scheme:
the radius of the semicircular gap at the inner side of the first vertical rib plate is equal to that of the semicircular gap at the outer side of the second vertical rib plate, and the radii of the two semicircular gaps are respectively equal to the radius of the pipeline.
The first connecting arc plate is provided with two first vertical rib plate tops.
The second connection arc plate is provided with four, and the top and the bottom of the second vertical rib plate are respectively provided with two.
One end of the first slideway is fixed on the outer moulding bed, and the other end of the first slideway is connected with the working platform through a fixing plate.
The lateral wall of first slide and the lateral wall sliding connection of second slide.
A large-diameter pipeline bending method comprises the following steps:
1) manufacturing an inner tire mold and an outer tire mold according to the diameter and the turning radius of the pipeline;
2) keeping the inner tire mold away from the outer tire mold until the gap between the inner tire mold and the outer tire mold is enough to penetrate into a pipeline to be bent;
3) penetrating a pipeline to be bent from one end between an inner tire mold and an outer tire mold, adjusting the position of the pipeline, and adjusting the levelness;
4) simultaneously jacking a plurality of jacks to push the inner mould to jack outwards along the slide way, and when the jack stroke is insufficient, adding a movable cushion block to jack continuously until the corresponding first vertical rib plate and the corresponding second vertical rib plate are completely closed;
5) releasing the jack, detaching the jack and the movable cushion block, and pulling the inner tire mold in the direction far away from the outer tire mold to ensure that the gap between the inner tire mold and the outer tire mold is enough to pull out the pipeline;
6) and (5) repeating the steps 1) to 5) to bend the rest pipelines.
The method has simple steps and high operability, can solve the problem of manufacturing the large-diameter pipeline bent pipe on a construction site, and improves the construction quality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the outer tire mold;
FIG. 3 is a schematic view of the inner mold;
FIG. 4 is a schematic view of a pipe through-going pipe;
FIG. 5 is a schematic view of the completed elbow;
FIG. 6 is a schematic diagram showing the comparison between the arc after the inner and outer molds are closed and the arc of the elbow pipe in the actual design requirement;
in the figure: an outer tire mold 1; a first connecting arc plate 101; a first vertical rib plate 102; an inner tube mold 2; a second connecting arc plate 201; a second vertical rib plate 202; an arc-shaped side plate 203; a working platform 3; a first slideway 4; a fixing plate 401; a fixing plate 401; a second slideway 5; a pipe 6; a jack plate 7; a jack 8; a jack base 9; a movable pad 10.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the detailed description.
Referring to the drawings:
a large-diameter pipeline bending device comprises an outer tire mold 1, an inner tire mold 2 and a working platform 3.
As shown in fig. 2, the outer tire mold 1 is composed of a first connecting arc plate 101 and a plurality of first vertical rib plates 102 arranged at equal intervals, each first vertical rib plate 102 is of a rectangular structure, a semicircular notch is arranged on the outer side of each first vertical rib plate 102, the height of each first vertical rib plate 102 is equal to the diameter of a pipeline 6, the length of each first vertical rib plate is 300mm larger than the radius of the pipeline, the diameter of the semicircular notch is equal to the outer diameter of the pipeline, the bottom of each first vertical rib plate 102 is welded with a working platform 3, the first vertical rib plates 102 are arranged in an integral structure, and the interval between inner rings of adjacent first vertical rib plates 102 is 500 mm; the top of the first vertical rib plate 102 is connected through two first connecting arc plates 101, the number of the first connecting arc plates 101 is two, and the inner ring and the outer ring of the top of the first vertical rib plate 102 are respectively one; two first slide ways 4 are arranged on the first connecting arc plates 101, one ends of the first slide ways 4 are welded on the two first connecting arc plates 101, and the other ends of the first slide ways are connected with the working platform 3 through fixing plates 401.
The inner tire mold 2 consists of an arc-shaped side plate 203, a second connecting arc plate 201 and a second vertical rib plate 202, each second vertical rib plate 202 has the same structure as the first vertical rib plate 102, a semicircular notch is formed in the outer side of the second vertical rib plate 202, the height of the second vertical rib plate 202 is equal to the diameter of a pipeline, the length of the second vertical rib plate 202 is 300mm larger than the radius of the pipeline, the diameter of the semicircular notch is equal to the outer diameter of the pipeline 6, and when the inner tire mold 2 and the outer tire mold 1 are closed, the semicircular notch of the first vertical rib plate 102 and the semicircular notch of the second vertical rib plate 202 are spliced into a complete circle; the second vertical rib plates 202 are arranged in an integral structure, the distance between the inner rings of the adjacent second vertical rib plates 202 is set to be 500mm, the arc-shaped side plate 203 is formed by bending a steel plate with the thickness of 20mm, and the arc-shaped side plate 203 is tightly attached to the vertical surface of the inner side of each second vertical rib plate 202 to connect all the second vertical rib plates 202; the second connecting arc plate 201 is provided with four pieces, the four pieces are all made of steel plates with the thickness of 20mm and the width of 100mm, the inner ring and the outer ring at the top of the first vertical rib plate 102 are respectively provided with one piece, and the inner ring and the outer ring at the bottom are respectively provided with one piece; the two second connecting arc plates 201 at the top of the first vertical rib plate 102 are connected through two second slide ways 5, the two second slide ways 5 are respectively arranged at the left and right quarter parts of the inner tire membrane 2, two ends of each second slide way 5 do not exceed the second connecting arc plates 201 of the inner ring and the outer ring, the second slide ways 5 are tightly attached to the side wall of the first slide way 4, and the second slide ways 5 move along the side wall of the first slide way 4; and a jack plate 7 is arranged on the arc-shaped side plate 203, and the jack plate 7 is arranged in parallel with the top surface of the jack 8.
In this embodiment, 3 jacks 8 of 100t are used as power devices, a jack base 9 is welded on the working platform 3 by using a thick steel plate according to the size of the jack 8, as shown in fig. 5, the jack 8 is installed on the jack base 9, a piston rod of the jack 8 is aligned with the jack plate 7, and when the jack 8 is insufficiently formed, a movable cushion block 10 can be added between the jack 8 and the jack base 9.
Referring to the attached figure 6, considering that the pipe 6 rebounds after bending, the actual design requirement of the circle center O of the bending arc formed after the inner tire mold 2 and the outer tire mold 1 are that the circle center O of the bending of the pipe 6 is the circle center O of the bending1On the same horizontal line, and there is a spacing H (i.e. OO)1Spacing), the bending arc formed after the inner tire mold 2 and the outer tire mold 1 are folded is superposed with the bending arc of the pipeline 6 in the actual design requirement at the point A, and the radius OA of the bending arc formed after the inner tire mold 2 and the outer tire mold 1 are folded is slightly smaller than the bending radius O of the pipeline 6 in the actual design requirement1A。
A large-diameter pipeline bending method comprises the following steps:
1) manufacturing an inner tire mold 2 and an outer tire mold 1 according to the diameter and the turning radius of the pipeline; the pipe bending radius is used as a boundary, the bending radius is inwards used as an inner tire mold 2, the pipe bending radius is outwards used as an outer tire mold 1, the inner tire mold and the outer tire mold release a sample plate by using AutoCAD software according to the actual design requirement and according to the bending angle, the bending angle is divided into a plurality of equal parts, the inner tire mold and the outer tire mold of each equal division point are determined according to the bending radius, the bending angle and the outer diameter of the pipe, a thick steel plate is used for cutting a vertical rib plate and a connecting arc plate which are required by the inner tire mold and the outer tire mold according to the amplified sample, then the thick steel plate is used for pressing an arc-shaped side plate, then the inner tire mold and the outer tire are assembled, the outer tire mold 1 is fixed with a working.
2) And (4) keeping the inner moulding bed 2 away from the outer moulding bed 1 until the gap between the inner moulding bed and the outer moulding bed is enough to penetrate into the pipeline to be bent.
3) And (3) penetrating the pipeline to be bent into the mould from one end between the inner and outer moulding beds, adjusting the position of the pipeline as required and adjusting the levelness.
4) And (3) the jacks 8 are in place, a plurality of jacks 8 are synchronously jacked, the inner moulding bed 2 is pushed to jack towards the outer moulding bed 1 along the first slide ways 4, and when the stroke of the jacks 8 is insufficient, the movable cushion blocks 10 are added to continue jacking until the corresponding first vertical rib plates 102 and the corresponding second vertical rib plates 202 are completely closed.
5) And (3) releasing the jack 8, detaching the jack 8 and the movable cushion block 10, pulling the inner tire mold 2 by using a chain block in a direction far away from the outer tire mold 1, moving the inner tire mold 2 along the first slide 4 until a gap between the inner tire mold 2 and the outer tire mold 1 is enough to pull out the pipeline 6, and finishing the bending operation of the pipeline.
6) And (5) repeating the steps 1) to 5) to bend the rest pipelines.
The above are only specific embodiments of the present invention, but the protection of the present invention is not limited thereto, and all equivalent changes or substitutions of technical features to the technical features of the present invention that can be made by those skilled in the art are included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a major diameter pipeline swan neck system, includes outer child mould, interior child mould and work platform, its characterized in that: the outer tire mold comprises a first connecting arc plate and a plurality of first vertical rib plates arranged at equal intervals, the first vertical rib plates are arranged in an arc structure and fixed on the working platform, the tops of the first vertical rib plates are connected through the first connecting arc plate, semicircular notches are formed in the inner sides of the first vertical rib plates, and a first slide way is formed in the top of the outer tire mold; the inner mould comprises an arc-shaped side plate, a second vertical rib plate is arranged at intervals of a second connecting arc plate and a plurality of blocks, the inner side of the second vertical rib plate is connected through the arc-shaped side plate, each second vertical rib plate corresponds to one first vertical rib plate, a semicircular notch is arranged on the outer side of each second vertical rib plate, the top and the bottom of each first vertical rib plate are connected through the second connecting arc plate respectively, a jack plate is arranged on the arc-shaped side plate, and a second slide way is arranged at the top of the inner mould.
2. The large diameter elbow device according to claim 1, wherein: the radius of the semicircular gap at the inner side of the first vertical rib plate is equal to that of the semicircular gap at the outer side of the second vertical rib plate, and the radii of the two semicircular gaps are respectively equal to the radius of the pipeline.
3. The large diameter elbow device according to claim 1, wherein: the first connecting arc plate is provided with two first vertical rib plate tops.
4. The large diameter pipe elbow device according to claim 1, wherein: the second connection arc plate is provided with four, and the top bottom of the second vertical rib plate is provided with two.
5. The large diameter pipe elbow device according to claim 1, wherein: one end of the first slideway is fixed on the outer moulding bed, and the other end of the first slideway is connected with the working platform through a fixing plate.
6. The large diameter pipe elbow device according to claim 1, wherein: the lateral wall of first slide and the lateral wall sliding connection of second slide.
7. A large-diameter pipeline bending method comprises the following steps:
1) manufacturing an inner tire mold and an outer tire mold according to the diameter and the turning radius of the pipeline;
2) keeping the inner tire mold away from the outer tire mold until the gap between the inner tire mold and the outer tire mold is enough to penetrate into a pipeline to be bent;
3) penetrating a pipeline to be bent from one end between an inner tire mold and an outer tire mold, adjusting the position of the pipeline, and adjusting the levelness;
4) simultaneously jacking a plurality of jacks to push the inner mould to jack outwards along the slide way, and when the jack stroke is insufficient, adding a movable cushion block to jack continuously until the corresponding first vertical rib plate and the corresponding second vertical rib plate are completely closed;
5) releasing the jack, detaching the jack and the movable cushion block, and pulling the inner tire mold in the direction far away from the outer tire mold to ensure that the gap between the inner tire mold and the outer tire mold is enough to pull out the pipeline;
6) and (5) repeating the steps 1) to 5) to bend the rest pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045560.8A CN110586771A (en) | 2019-10-30 | 2019-10-30 | Large-diameter pipeline pipe bending device and pipe bending method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045560.8A CN110586771A (en) | 2019-10-30 | 2019-10-30 | Large-diameter pipeline pipe bending device and pipe bending method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110586771A true CN110586771A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911045560.8A Pending CN110586771A (en) | 2019-10-30 | 2019-10-30 | Large-diameter pipeline pipe bending device and pipe bending method |
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| CN (1) | CN110586771A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030172513A1 (en) * | 2000-08-08 | 2003-09-18 | Norio Takei | Pipe joining method |
| CN101147942A (en) * | 2007-10-31 | 2008-03-26 | 江苏沪宁钢机股份有限公司 | Round pipe steel component arc clod curving forming mould |
| CN101912907A (en) * | 2010-08-13 | 2010-12-15 | 安徽瑶海钢结构股份有限公司 | Cold-bending processing equipment and method of steel pipe |
| CN203778602U (en) * | 2014-02-28 | 2014-08-20 | 江苏华电铁塔制造有限公司 | Die for steel pipe bending |
| CN204523896U (en) * | 2015-04-13 | 2015-08-05 | 中冶建工集团有限公司 | A kind of steel pipe cold-bending forming device |
| CN205613943U (en) * | 2016-05-13 | 2016-10-05 | 吉林昊宇电气股份有限公司 | Intermediate frequency return bend angle school shape mould |
| CN107824647A (en) * | 2017-09-19 | 2018-03-23 | 中建钢构有限公司 | A kind of Large Diameter Pipeline pipe cold bending shaping method |
| CN207787371U (en) * | 2017-12-11 | 2018-08-31 | 武汉华电工程装备有限公司 | A kind of steel pipe bending device |
| CN109772960A (en) * | 2019-02-27 | 2019-05-21 | 中国一冶集团有限公司 | A kind of big specification Intermediate High Pressure tube bends processing unit (plant) and application method |
| CN210676637U (en) * | 2019-10-30 | 2020-06-05 | 中国二十二冶集团有限公司 | Large-diameter pipeline bending device |
-
2019
- 2019-10-30 CN CN201911045560.8A patent/CN110586771A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030172513A1 (en) * | 2000-08-08 | 2003-09-18 | Norio Takei | Pipe joining method |
| CN101147942A (en) * | 2007-10-31 | 2008-03-26 | 江苏沪宁钢机股份有限公司 | Round pipe steel component arc clod curving forming mould |
| CN101912907A (en) * | 2010-08-13 | 2010-12-15 | 安徽瑶海钢结构股份有限公司 | Cold-bending processing equipment and method of steel pipe |
| CN203778602U (en) * | 2014-02-28 | 2014-08-20 | 江苏华电铁塔制造有限公司 | Die for steel pipe bending |
| CN204523896U (en) * | 2015-04-13 | 2015-08-05 | 中冶建工集团有限公司 | A kind of steel pipe cold-bending forming device |
| CN205613943U (en) * | 2016-05-13 | 2016-10-05 | 吉林昊宇电气股份有限公司 | Intermediate frequency return bend angle school shape mould |
| CN107824647A (en) * | 2017-09-19 | 2018-03-23 | 中建钢构有限公司 | A kind of Large Diameter Pipeline pipe cold bending shaping method |
| CN207787371U (en) * | 2017-12-11 | 2018-08-31 | 武汉华电工程装备有限公司 | A kind of steel pipe bending device |
| CN109772960A (en) * | 2019-02-27 | 2019-05-21 | 中国一冶集团有限公司 | A kind of big specification Intermediate High Pressure tube bends processing unit (plant) and application method |
| CN210676637U (en) * | 2019-10-30 | 2020-06-05 | 中国二十二冶集团有限公司 | Large-diameter pipeline bending device |
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