CN114043171A - Method for manufacturing steel anchor box of curve cable tower - Google Patents
Method for manufacturing steel anchor box of curve cable tower Download PDFInfo
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- CN114043171A CN114043171A CN202111338315.3A CN202111338315A CN114043171A CN 114043171 A CN114043171 A CN 114043171A CN 202111338315 A CN202111338315 A CN 202111338315A CN 114043171 A CN114043171 A CN 114043171A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 68
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 62
- 239000010959 steel Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000003466 welding Methods 0.000 claims abstract description 63
- 238000003754 machining Methods 0.000 claims abstract description 38
- 238000005192 partition Methods 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The invention discloses a method for manufacturing a curved cable tower steel anchor box, which comprises the following steps of sequentially manufacturing the curved cable tower steel anchor box so as to achieve the purpose of improving the manufacturing precision: the method comprises the following steps of manufacturing a unit piece, assembling and welding a first side pull plate and an anchor head unit, assembling and welding a partition plate unit and a second side pull plate, assembling and welding an end part bearing plate, assembling and welding a horizontal connecting plate and a vertical rib plate, assembling and bolting end members and end face machining, trial assembly and bonding sliding pairs. The manufacturing method of the curve cable tower steel anchor box is beneficial to improving the manufacturing precision of the curve structure, the welding quality and the angle control of the anchor box are guaranteed through a reasonable assembling sequence, and the overall manufacturing precision of the steel anchor box is guaranteed through end face machining and trial assembly. The cross-section size precision, anchor box angle control and contact surface adherence of the steel anchor box are improved, and the integral manufacturing precision and engineering quality of the steel anchor box are guaranteed. Is worthy of large-area popularization and application.
Description
Technical Field
The invention relates to the technical field of steel anchor box manufacturing, in particular to a method for manufacturing a steel anchor box of a curve cable tower.
Background
The steel anchor box manufacturing technology is an important technology in the bridge structure industry, particularly a curved cable tower, the cable tower landscape effect is outstanding, the manufacturing difficulty is large, the form of the steel anchor box of the curved cable tower is special, special lofting and checking are needed, the anchor points of the steel anchor box of the cable tower correspond to the anchor points of the steel box girder one by one, the two sides of the steel anchor box are respectively a bolting end and a non-bolting end, the upper steel anchor box girder section and the lower steel anchor box girder section are closely attached and are in a bolting structure form, and higher requirements are provided for the manufacturing precision.
The cable tower steel anchor box is in a curve line shape, the manufacturing difficulty is high, in order to solve the problem of manufacturing precision control of a curve cable tower steel anchor box structure, the manufacturing precision of the steel anchor box needs to be controlled in advance, otherwise, anchor box segments cannot be accurately positioned and assembled.
In the prior art, the anchor box is mainly assembled directly and then assembled and welded directly. The method not only has the difficulty in controlling the section size precision and the anchor box angle, but also cannot ensure the integral linear precision of the anchor box without adopting end face machining and trial assembly.
Disclosure of Invention
The invention provides a method for manufacturing a steel anchor box of a curve tower.
The invention provides the following scheme:
the method for manufacturing the curved cable tower steel anchor box comprises the following steps of sequentially manufacturing the curved cable tower steel anchor box so as to achieve the purpose of improving the manufacturing precision:
the method comprises the following steps of manufacturing a unit piece, assembling and welding a first side pull plate and an anchor head unit, assembling and welding a partition plate unit and a second side pull plate, assembling and welding an end part bearing plate, assembling and welding a horizontal connecting plate and a vertical rib plate, assembling and bolting end members and end face machining, trial assembly and bonding sliding pairs.
Preferably: the unit element comprises a clapboard unit, a stay cable sleeve unit and an anchor head unit; the unit piece manufacturing includes:
placing the anchor box block on a marking platform, and marking steel liner machining lines and anchor plate machining lines on two sides of the anchor box; and machining the top surface of the anchor plate of the anchor box, two sides of the anchor plate of the web plate of the anchor box and the boring hole after the marking inspection is qualified.
Preferably: the assembly welding first side arm-tie and anchor head unit includes:
assembling an anchor head unit by adopting a side-mounting method according to the central line of the inhaul cable on the first side pulling plate, the web plate and the anchor backing plate positioning line; during assembly, the edge of the first side pulling plate is closely attached to the tire type baffle angle, the extension line of the plane of the anchor backing plate is overlapped with the anchor head positioning line on the first side pulling plate by adopting a flat ruler for detection and adjustment, the error is controlled to be +/-0.5 mm, the center distance of the anchor hole is detected by adopting an anchor hole centering tool matched with an angle ruler and a steel tape, and the error is controlled to be +/-2 mm.
Preferably: the assembly welding baffle plate unit and the second side pulling plate comprise:
scribing and assembling a diaphragm plate unit, wherein the diaphragm plate unit and the first side pull plate are positioned and welded within 1000mm from the anchor head unit and are not allowed to be positioned and welded; assembling a second side pulling plate, namely, closely attaching the second side pulling plate to a tire type baffle angle, simultaneously checking the superposition condition of the plane extension line of the anchor backing plate and the anchor head positioning line on the second side pulling plate by using a flat ruler, and adjusting to control the error within the range of not more than 1 mm; and measuring the center distance of the anchor hole again, and finishing welding seams of the second side pulling plate, the anchor head unit and the diaphragm plate unit by using a symmetrical welding method through CO2 gas shielded welding after the center distance of the anchor hole is detected and determined to be qualified.
Preferably: the assembly welding end bearing plate includes:
and erecting part of the welded anchor boxes by adopting a normal assembly method, ensuring that the pull plates on the side surfaces of the anchor boxes are vertical, scribing and assembling the end bearing plates on the platform, and assembling by taking the system center line of the end bearing plates as a reference during assembly and ensuring the concentricity of the cable holes.
Preferably: group welds horizontal connecting plate and vertical rib board includes:
marking and assembling a horizontal connecting plate and a vertical rib plate, wherein the center line of the horizontal connecting plate is overlapped with the center line of the end bearing plate, and the error is ensured to be less than or equal to 2 mm; drilling a part of hole groups on the first side pulling plate and the second side pulling plate by the sample clamping plate; drilling a hole group of a horizontal connecting plate on the anchor box by using the sample clamping plate; and scribing and assembling the sleeve unit on the platform, and positioning and welding after the axial line angle deviation of the sleeve is measured and adjusted to meet the requirement by using a special centering tool during assembly.
Preferably: the assembly bolt end member and end face machining comprises:
assembling the bolting end component with the assembled anchor box on the platform, throwing a splice plate into a first side pull plate bolt hole of the anchor box, and drawing an upper end face machining line and a lower end face machining line by taking a horizontal contour line of the first side pull plate of the anchor box as a reference; and drilling a first side pulling plate and a second side pulling plate bolt hole group by the aid of the split clamping sample plate, and machining the upper end face and the lower end face.
Preferably: the trial assembly and bonding sliding pair comprises:
the number of the trial assembly sections is not less than 6, one section is reserved for the trial assembly of the next round, the trial assembly of the anchor box sections is carried out by taking the plate hole group on the upper part of the anchor box as a standard, the bolt holes on the lower part of the anchor box are thrown on the bolt holes on the upper part of the anchor box, and the bolt holes on the connecting plate are drilled after the marks are made; and the sliding pair is controlled to be positioned in the same plane with the adjacent connecting plate during adhesion.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
by the invention, the method for manufacturing the curved cable tower steel anchor box can be realized, and in an implementation mode, the method can comprise the following steps of sequentially manufacturing the curved cable tower steel anchor box so as to achieve the purpose of improving the manufacturing precision: the method comprises the following steps of manufacturing a unit piece, assembling and welding a first side pull plate and an anchor head unit, assembling and welding a partition plate unit and a second side pull plate, assembling and welding an end part bearing plate, assembling and welding a horizontal connecting plate and a vertical rib plate, assembling and bolting end members and end face machining, trial assembly and bonding sliding pairs. The manufacturing method of the curve cable tower steel anchor box is beneficial to improving the manufacturing precision of the curve structure, the welding quality and the angle control of the anchor box are guaranteed through a reasonable assembling sequence, and the overall manufacturing precision of the steel anchor box is guaranteed through end face machining and trial assembly. The cross-section size precision, anchor box angle control and contact surface adherence of the steel anchor box are improved, and the integral manufacturing precision and engineering quality of the steel anchor box are guaranteed. Is worthy of large-area popularization and application.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of an assembly sequence of units of a method for manufacturing a curved cable tower steel anchor box according to an embodiment of the present invention;
FIG. 2 is a sequence diagram for successive trial assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a curved cable tower steel anchor box provided by the embodiment of the invention.
In the figure: the anchor head comprises a first side pull plate 1, an anchor head unit 2, a partition plate unit 3, a second side pull plate 4, an end bearing plate 5, a horizontal connecting plate 6, a vertical rib plate 7 and a bolt connection end member 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Examples
Referring to fig. 1, 2, and 3, a method for manufacturing a curved line tower steel anchor box according to an embodiment of the present invention, as shown in fig. 1, 2, and 3, may include:
the manufacturing of the curved cable tower steel anchor box is carried out in sequence according to the following steps so as to achieve the purpose of improving the manufacturing precision:
the method comprises the steps of manufacturing unit parts, assembling and welding a first side pull plate 1 and an anchor head unit 2, assembling and welding a partition plate unit 3 and a second side pull plate 4, assembling and welding an end part bearing plate 5, assembling and welding a horizontal connecting plate 6 and a vertical rib plate 7, assembling and bolting end members 8 and end face machining, trial assembling and bonding sliding pairs.
The manufacturing method of the curve cable tower steel anchor box provided by the embodiment of the application is beneficial to improving the manufacturing precision of the curve structure, the welding quality and the angle control of the anchor box are guaranteed through a reasonable assembling sequence, and the integral manufacturing precision of the steel anchor box is guaranteed through end face machining and trial assembly.
Specifically, the unit element comprises a clapboard unit, a stay cable sleeve unit and an anchor head unit; the unit piece manufacturing includes:
placing the anchor box block on a marking platform, and marking steel liner machining lines and anchor plate machining lines on two sides of the anchor box; and machining the top surface of the anchor plate of the anchor box, two sides of the anchor plate of the web plate of the anchor box and the boring hole after the marking inspection is qualified.
The assembly welding first side arm-tie and anchor head unit includes:
assembling an anchor head unit by adopting a side-mounting method according to the central line of the inhaul cable on the first side pulling plate, the web plate and the anchor backing plate positioning line; during assembly, the edge of the first side pulling plate is closely attached to the tire type baffle angle, the extension line of the plane of the anchor backing plate is overlapped with the anchor head positioning line on the first side pulling plate by adopting a flat ruler for detection and adjustment, the error is controlled to be +/-0.5 mm, the center distance of the anchor hole is detected by adopting an anchor hole centering tool matched with an angle ruler and a steel tape, and the error is controlled to be +/-2 mm.
The assembly welding baffle plate unit and the second side pulling plate comprise:
scribing and assembling a diaphragm plate unit, wherein the diaphragm plate unit and the first side pull plate are positioned and welded within 1000mm from the anchor head unit and are not allowed to be positioned and welded; assembling the second side pull plate by first closely attaching the second side pull plate to the tire mold corner and simultaneously checking with a leveling rulerThe superposition condition of the plane extension line of the anchor backing plate and the anchor head positioning line on the second side pulling plate is adjusted to control the error within the range of not more than 1 mm; measuring the center distance of the anchor hole again, and using CO after the center distance is detected and determined to be qualified2And the gas shielded welding is used for completing the welding seam welding of the second side pulling plate, the anchor head unit and the diaphragm plate unit by a symmetrical welding method.
The assembly welding end bearing plate includes:
and erecting part of the welded anchor boxes by adopting a normal assembly method, ensuring that the pull plates on the side surfaces of the anchor boxes are vertical, scribing and assembling the end bearing plates on the platform, and assembling by taking the system center line of the end bearing plates as a reference during assembly and ensuring the concentricity of the cable holes.
Group welds horizontal connecting plate and vertical rib board includes:
marking and assembling a horizontal connecting plate and a vertical rib plate, wherein the center line of the horizontal connecting plate is overlapped with the center line of the end bearing plate, and the error is ensured to be less than or equal to 2 mm; drilling a part of hole groups on the first side pulling plate and the second side pulling plate by the sample clamping plate; drilling a hole group of a horizontal connecting plate on the anchor box by using the sample clamping plate; and scribing and assembling the sleeve unit on the platform, and positioning and welding after the axial line angle deviation of the sleeve is measured and adjusted to meet the requirement by using a special centering tool during assembly.
The assembly bolt end member and end face machining comprises:
assembling the bolting end component with the assembled anchor box on the platform, throwing a splice plate into a first side pull plate bolt hole of the anchor box, and drawing an upper end face machining line and a lower end face machining line by taking a horizontal contour line of the first side pull plate of the anchor box as a reference; and drilling a first side pulling plate and a second side pulling plate bolt hole group by the aid of the split clamping sample plate, and machining the upper end face and the lower end face.
The trial assembly and bonding sliding pair comprises:
the number of the trial assembly sections is not less than 6, one section is reserved for the trial assembly of the next round, the trial assembly of the anchor box sections is carried out by taking the plate hole group on the upper part of the anchor box as a standard, the bolt holes on the lower part of the anchor box are thrown on the bolt holes on the upper part of the anchor box, and the bolt holes on the connecting plate are drilled after the marks are made; and the sliding pair is controlled to be positioned in the same plane with the adjacent connecting plate during adhesion.
A set of detection data is obtained by measuring with a process method in the prior art, and compared with a set of data obtained by measuring with a process method provided by the present application, the following details are shown in table 1:
TABLE 1 tolerance comparison table (mm) for steel anchor box manufacture
By comparing the two sets of data, the process method provided by the application is higher in manufacturing precision.
The following describes the manufacturing method of the curved cable tower steel anchor box provided by the embodiment of the application in detail by taking the application as an example in the project of a grand bridge in Fushan City, Fulong Xijiang river.
Firstly, the cable tower steel anchor box with the segment number of M4(Y) -1 of the super bridge section of the Fushan city Fulong Xijiang river is manufactured by adopting the method provided by the embodiment of the application, and the main assembling and manufacturing method comprises the following steps: manufacturing a unit element; assembling and welding the side plates and the anchor heads; assembling and welding the partition plate and the side plate; fourthly, carrying out assembly welding on an end bearing plate; fifthly, assembling and welding a connecting plate and a rib plate; sixthly, assembling a bolting end and machining an end face; assembly and bonding of sliding pairs is attempted. The invention has the advantages that: the manufacturing method of the curved cable tower steel anchor box is beneficial to improving the manufacturing precision of the curved structure, the reasonable assembly sequence ensures the welding quality and the angle control of the anchor box, and the end face machining and trial assembly ensure the integral manufacturing precision of the steel anchor box. Further, the unit piece manufacturing includes: manufacturing a partition plate unit, a stay cable sleeve unit, an anchor head unit and the like.
The manufacturing method of the steel anchor box comprises the following steps:
manufacturing a unit element: the manufacturing accuracy of the unit element is guaranteed, the key of the manufacturing accuracy of the finished box is, and the unit element is divided into a partition plate unit, a stay cable sleeve unit and an anchor head unit. And (3) placing the anchor box block body on a scribing platform, and precisely scribing steel gasket machining lines and anchor plate machining lines on two sides of the anchor box. And during scribing, attention is paid to ensure the parallelism of two side surfaces of the anchor box. And machining the top surface of the anchor plate of the anchor box, two sides of the anchor plate of the web plate of the anchor box and the boring hole after the marking inspection is qualified.
Set up welding curb plate and anchor head: and assembling the anchor head unit by adopting a side mounting method according to the central line of the inhaul cable on the side pull plate, the web plate and the anchor backing plate positioning line. When assembling, the edge of the side pull plate is closely attached to the tyre block angle, the flat ruler is used for detecting and adjusting to ensure that the plane extension line of the anchor backing plate is superposed with the anchor head positioning line on the side pull plate, and the error is controlled to be +/-0.5 mm. And (4) detecting the center distance of the anchor hole by using an anchor hole centering tool in cooperation with an angle square and a steel tape, wherein the error is controlled to be +/-2 mm.
Welding the partition plate and the side plate: and scribing and assembling the diaphragm plate, wherein the diaphragm plate and the side pull plate are tack-welded within the range of 1000mm from the anchor head unit and are not allowed to be tack-welded. Assembling the upper side pull plate, firstly, closely attaching the side pull plate to the tire type baffle angle, simultaneously checking the superposition condition of the plane extension line of the anchor backing plate and the anchor head positioning line on the side pull plate by using a flat ruler, and finely adjusting to control the error within the range of not more than 1 mm. And ensuring the relative positions of the two side pull plates to be accurate, measuring the center distance of the anchor hole again, and completing welding seam welding of the side pull plates, the anchor head unit and the partition plate unit by using a symmetrical welding method through CO2 gas shielded welding after the relative positions of the two side pull plates are confirmed to be qualified through special inspection. And (5) after the welding seam is inspected to be qualified, transferring to a finishing process. And assembling and welding the anchor backing plate.
Fourth group welds tip bearing plate: and erecting the anchor box by adopting a normal installation method, ensuring that the pull plate on the side surface of the anchor box is vertical, marking and assembling the end bearing plate on the platform, and assembling by taking the system center line of the end bearing plate as a reference during assembly. Care was taken to ensure socket concentricity.
Fifthly, assembling and welding a connecting plate and a rib plate: and marking off and assembling the horizontal connecting plate and the vertical rib plate (including part of shear nails), wherein the center line of the horizontal connecting plate is overlapped with the center line of the end bearing plate, and the error of the horizontal connecting plate is less than or equal to 2 mm. Drilling a partial hole group on the side pulling plate by using the sample clamping plate; and drilling an upper connecting plate hole group and a lower connecting plate hole group of the anchor box by using the sample clamping plate. And scribing and assembling the sleeve unit on the platform, and positioning and welding after the axial line angle deviation of the sleeve is measured and adjusted to meet the requirement by using a special centering tool during assembly.
Sixthly, assembling a bolting end and processing an end face: and assembling and welding the bolted end member, and drilling a finished product of the web plate clamping sample plate. Assembling the bolt-connecting end component with the anchor box on the platform, using the splice plate to cast the bolt hole of the side pull plate of the anchor box, and drawing the machining line of the upper end face and the lower end face by taking the horizontal contour line of the side pull plate of the anchor box as a reference. And drilling a side pulling plate bolt hole group by the disassembled sample clamping plate, and machining the upper end face and the lower end face.
Trial assembly and adhesive sliding pairs: in order to guarantee the whole size precision and the bolt hole coincidence rate of the steel anchor box, the whole pre-assembly is carried out, the number of pre-assembled sections is not less than 6, one section is reserved for the next round of trial assembly, the anchor box sections are trial assembled, the bolt holes of the lower part of the anchor box of the upper part of the anchor box are thrown by taking the plate hole group of the upper part of the anchor box as the standard, and the bolt holes of the connecting plate are drilled after the mark is made. And the stainless steel of the sliding pair is bonded, and the sliding pair and the adjacent connecting plate are controlled to be in the same plane during bonding.
Secondly, the cable-tower steel anchor box with the segment number of M4(Z) -1 is manufactured by adopting the method in the prior art.
The quality of the cable tower steel anchor box manufactured by the method provided by the application and the method in the prior art is respectively detected, and the obtained detection results are shown in tables 2 and 3.
TABLE 2
TABLE 2
In a word, the manufacturing method of the curved cable tower steel anchor box is beneficial to improving the manufacturing precision of the curved structure, the welding quality and the angle control of the anchor box are guaranteed through a reasonable assembling sequence, and the overall manufacturing precision of the steel anchor box is guaranteed through end face machining and trial assembly. The cross-section size precision, anchor box angle control and contact surface adherence of the steel anchor box are improved, and the integral manufacturing precision and engineering quality of the steel anchor box are guaranteed. Is worthy of large-area popularization and application.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. The method for manufacturing the curved cable tower steel anchor box is characterized by comprising the following steps of sequentially manufacturing the curved cable tower steel anchor box so as to achieve the purpose of improving the manufacturing precision:
the method comprises the following steps of manufacturing a unit piece, assembling and welding a first side pull plate and an anchor head unit, assembling and welding a partition plate unit and a second side pull plate, assembling and welding an end part bearing plate, assembling and welding a horizontal connecting plate and a vertical rib plate, assembling and bolting end members and end face machining, trial assembly and bonding sliding pairs.
2. The curved cable tower steel anchor box manufacturing method according to claim 1, wherein the unit elements include a diaphragm unit, a stay cable sleeve unit, an anchor head unit; the unit piece manufacturing includes:
placing the anchor box block on a marking platform, and marking steel liner machining lines and anchor plate machining lines on two sides of the anchor box; and machining the top surface of the anchor plate of the anchor box, two sides of the anchor plate of the web plate of the anchor box and the boring hole after the marking inspection is qualified.
3. The method of manufacturing a curvilinear pylon steel anchor box of claim 1 wherein the assembly welding first side tie plate and anchor head unit comprises:
assembling an anchor head unit by adopting a side-mounting method according to the central line of the inhaul cable on the first side pulling plate, the web plate and the anchor backing plate positioning line; during assembly, the edge of the first side pulling plate is closely attached to the tire type baffle angle, the extension line of the plane of the anchor backing plate is overlapped with the anchor head positioning line on the first side pulling plate by adopting a flat ruler for detection and adjustment, the error is controlled to be +/-0.5 mm, the center distance of the anchor hole is detected by adopting an anchor hole centering tool matched with an angle ruler and a steel tape, and the error is controlled to be +/-2 mm.
4. The method of claim 3, wherein the assembly welded bulkhead unit and second side tie plate comprise:
scribing and assembling a diaphragm plate unit, wherein the diaphragm plate unit and the first side pull plate are positioned and welded within 1000mm from the anchor head unit and are not allowed to be positioned and welded; assembling a second side pulling plate, namely, closely attaching the second side pulling plate to a tire type baffle angle, simultaneously checking the superposition condition of the plane extension line of the anchor backing plate and the anchor head positioning line on the second side pulling plate by using a flat ruler, and adjusting to control the error within the range of not more than 1 mm; measuring the center distance of the anchor hole again, and using CO after the center distance is detected and determined to be qualified2And the gas shielded welding is used for completing the welding seam welding of the second side pulling plate, the anchor head unit and the diaphragm plate unit by a symmetrical welding method.
5. The curved cable tower steel anchor box manufacturing method of claim 1, wherein the assembly welding end bearing plate comprises: and erecting part of the welded anchor boxes by adopting a normal assembly method, ensuring that the pull plates on the side surfaces of the anchor boxes are vertical, scribing and assembling the end bearing plates on the platform, and assembling by taking the system center line of the end bearing plates as a reference during assembly and ensuring the concentricity of the cable holes.
6. The method of claim 1, wherein the installing and welding the horizontal connecting plate and the vertical rib plate comprises:
marking and assembling a horizontal connecting plate and a vertical rib plate, wherein the center line of the horizontal connecting plate is overlapped with the center line of the end bearing plate, and the error is ensured to be less than or equal to 2 mm; drilling a part of hole groups on the first side pulling plate and the second side pulling plate by the sample clamping plate; drilling a hole group of a horizontal connecting plate on the anchor box by using the sample clamping plate; and scribing and assembling the sleeve unit on the platform, and positioning and welding after the axial line angle deviation of the sleeve is measured and adjusted to meet the requirement by using a special centering tool during assembly.
7. The method of claim 1 wherein said assembling of bolted end members and end face machining comprises:
assembling the bolting end component with the assembled anchor box on the platform, throwing a splice plate into a first side pull plate bolt hole of the anchor box, and drawing an upper end face machining line and a lower end face machining line by taking a horizontal contour line of the first side pull plate of the anchor box as a reference; and drilling a first side pulling plate and a second side pulling plate bolt hole group by the aid of the split clamping sample plate, and machining the upper end face and the lower end face.
8. The method for manufacturing a curvilinear cable tower steel anchor box according to claim 1, wherein the trial assembly and bonding sliding pair comprises: the number of the trial assembly sections is not less than 6, one section is reserved for the trial assembly of the next round, the trial assembly of the anchor box sections is carried out by taking the plate hole group on the upper part of the anchor box as a standard, the bolt holes on the lower part of the anchor box are thrown on the bolt holes on the upper part of the anchor box, and the bolt holes on the connecting plate are drilled after the marks are made; and the sliding pair is controlled to be positioned in the same plane with the adjacent connecting plate during adhesion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111338315.3A CN114043171B (en) | 2021-11-12 | 2021-11-12 | Manufacturing method of curve cable tower steel anchor box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111338315.3A CN114043171B (en) | 2021-11-12 | 2021-11-12 | Manufacturing method of curve cable tower steel anchor box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114043171A true CN114043171A (en) | 2022-02-15 |
| CN114043171B CN114043171B (en) | 2024-03-01 |
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Cited By (2)
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| CN115302045A (en) * | 2022-07-28 | 2022-11-08 | 中冶天工（天津）装备制造有限公司 | Assembling method for box-type structure with unequal plate thickness |
| CN115351447A (en) * | 2022-09-15 | 2022-11-18 | 中国五冶集团有限公司 | Welding forming method for cable tower steel anchor box |
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| CN115351447B (en) * | 2022-09-15 | 2024-01-23 | 中国五冶集团有限公司 | Welding forming method for cable tower steel anchor box |
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