CN104607815A - Method for manufacturing and controlling camber of crane main girder - Google Patents
Method for manufacturing and controlling camber of crane main girder Download PDFInfo
- Publication number
- CN104607815A CN104607815A CN201410785717.1A CN201410785717A CN104607815A CN 104607815 A CN104607815 A CN 104607815A CN 201410785717 A CN201410785717 A CN 201410785717A CN 104607815 A CN104607815 A CN 104607815A
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- CN
- China
- Prior art keywords
- welding
- web
- welded
- camber
- moulding bed
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Classifications
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/28—Beams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a method for manufacturing and controlling the camber of a crane main girder, and belongs to the technical field of crane structure manufacturing. The method comprises the steps that a web plate is welded to a connecting plate according to the longitudinal length and is cut and formed according to the reserved camber, all longitudinal long ribs on the web plate and the web plate are assembled and welded in place, an upper jig frame and a base plate are assembled after shaping and flattening are carried out, an inner transverse partition plate and the web plate are welded, longitudinal welding joints of the web plate and the base plate are formed, welding should be completed from the middle to the two sides gradually so as to control welding deformation, and the two sides of the girder are symmetrically welded to form the U-shaped girder. The method has the advantages that excessive materials and defective materials are used for manufacturing so that resources can be recycled and the cost can be saved; due to the rigid connection of the structure and the jig frame and the reserved camber value of the jig frame, the structural forming precision is completely controlled, secondary damage of flame distortion rectification to materials is avoided, and the welding sequence is reasonable.
Description
Technical field
Make and control the method for crane girder camber, belonging to crane structure manufacture technology field.
Background technology
At present, domestic crane is built, especially girder is built, conventional method is built to cast platform for horizontal reference by crane girder, by increasing the camber regulating the method for cushion block and fairing by flame to control girder in the middle of the beam, the shortcoming of this conventional method is that casting platform requirement amount is large and transhipment is complicated, regulates cushion block can not the distortion of control structure, affect the overall dimensional accuracy of structure, fairing by flame then affects the performance of material.
Summary of the invention
In view of the defect that prior art exists, the object of this invention is to provide and a kind ofly make and control the method for crane girder camber, clout, waste-material-preparing frock moulding bed is utilized to replace casting platform, the camber of girder is realized by the height of reserved moulding bed, can not only significantly cost-savingly raise the efficiency like this, and the camber of girder and dimensional accuracy can farthest be guaranteed.
For achieving the above object, the technology used in the present invention solution is: a kind ofly make and control the method for crane girder camber, and concrete steps are:
A) utilize the clout of plate cutting or stub bar to be welded into angle steel or T profile, it is all prefabricated into uniform length, as moulding bed section bar;
B) prefabricated moulding bed section bar is welded on mill floor built-in fitting, calculates the arch rise left in advance of crane girder;
C) utilize theodolite this arch rise left in advance value to be all transitioned on every root moulding bed section bar, this height is welded with horizontal section bar;
D) lay kingpost baseplate to make it to conform to arch rise left in advance, and itself and moulding bed are fixed as one;
E) assemble the diaphragm plate in beam, weld orthopedic;
F) capping girder top board.
Described welding orthopaedic procedures is specially: web is first by vertical length weld fishplate bar, press arch rise left in advance excision forming again, the long muscle of longitudinal direction on web all puts in place with web erection welding, moulding bed is gone up in orthopedic leveling afterwards and base plate assembles, and completes welding of interior diaphragm plate and web, the longer weld seam of the longitudinal direction completing web and base plate, in order to control welding deformation, should complete welding to both sides gradually from centre, the both sides also symmetrical welding of beam, forms U-shaped beam.
A kind ofly make and control the method for crane girder camber, its beneficial effect is: first utilize clout, defective material to make, the inherently recycling of resource, the saving of cost, by being rigidly connected of structure and moulding bed, adding the camber value that moulding bed is reserved, make the formed precision of structure all be controlled like this, it also avoid fairing by flame and cause secondary damage to material, welding sequence is reasonable.
Accompanying drawing explanation
Fig. 1 a kind ofly makes and controls the jig structure figure of the method for crane girder camber;
Fig. 2 is base plate installation diagram;
Fig. 3 is web installation diagram;
Fig. 4 is girder top board installation diagram;
Fig. 5 is camber value curve synoptic diagram.
In figure, Reference numeral is: 1, ground built-in fitting, 2, base plate, 3, horizontal section bar, 4, diaphragm plate, 5, web, 6, top board.
Detailed description of the invention
That shows with reference to the accompanying drawings below a kind ofly to make and the structure chart controlling the method for crane girder camber is described as follows: a kind ofly make and control the method for crane girder camber, and concrete steps are:
A) utilize the clout of plate cutting or stub bar to be welded into angle steel or T profile, it is all prefabricated into uniform length, as moulding bed section bar;
B) prefabricated moulding bed section bar is welded on mill floor built-in fitting 1, calculates the arch rise left in advance of crane girder;
C) utilize theodolite this arch rise left in advance value to be all transitioned on every root moulding bed section bar, this height is welded with horizontal section bar 3;
D) lay kingpost baseplate 2 to make it to conform to arch rise left in advance, and itself and moulding bed are fixed as one;
E) assemble the diaphragm plate 4 in beam, weld orthopedic;
F) capping girder top board 6.
Described welding orthopaedic procedures is specially: web 5 is first by vertical length weld fishplate bar, press arch rise left in advance excision forming again, the long muscle of longitudinal direction on web 5 all puts in place with web 5 erection welding, moulding bed is gone up in orthopedic leveling afterwards and base plate 2 assembles, and completes welding of interior diaphragm plate 3 and web 5, then completes the long weld seam of longitudinal direction of web 5 and base plate 2, in order to control welding deformation, should complete welding to both sides gradually from centre, the both sides also symmetrical welding of beam, forms U-shaped beam.
Claims (2)
1. make and control the method for crane girder camber, it is characterized in that concrete steps are: a kind ofly make and control the method for crane girder camber, concrete steps are:
A) utilize the clout of plate cutting or stub bar to be welded into angle steel or T profile, it is all prefabricated into uniform length, as moulding bed section bar;
B) prefabricated moulding bed section bar is welded on mill floor built-in fitting, calculates the arch rise left in advance of crane girder;
C) utilize theodolite this arch rise left in advance value to be all transitioned on every root moulding bed section bar, this height is welded with horizontal section bar;
D) lay kingpost baseplate to make it to conform to arch rise left in advance, and itself and moulding bed are fixed as one;
E) assemble the diaphragm plate in beam, weld orthopedic;
F) capping girder top board.
2. according to claim 1ly a kind ofly make and control the method for crane girder camber, it is characterized in that: described welding orthopaedic procedures is specially: web is first by vertical length weld fishplate bar, press arch rise left in advance excision forming again, the long muscle of longitudinal direction on web all puts in place with web erection welding, moulding bed is gone up in orthopedic leveling afterwards and base plate assembles, complete welding of interior diaphragm plate and web, complete the long weld seam of longitudinal direction of web and base plate again, in order to control welding deformation, welding should be completed to both sides gradually from centre, the both sides also symmetrical welding of beam, forms U-shaped beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785717.1A CN104607815B (en) | 2014-12-18 | 2014-12-18 | A kind of method making and control crane girder camber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785717.1A CN104607815B (en) | 2014-12-18 | 2014-12-18 | A kind of method making and control crane girder camber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104607815A true CN104607815A (en) | 2015-05-13 |
| CN104607815B CN104607815B (en) | 2016-08-17 |
Family
ID=53142600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410785717.1A Active CN104607815B (en) | 2014-12-18 | 2014-12-18 | A kind of method making and control crane girder camber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104607815B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879248A (en) * | 2017-07-21 | 2018-04-06 | 南通振华重型装备制造有限公司 | A kind of big beam orbit manufacture craft |
| CN108747065A (en) * | 2018-05-22 | 2018-11-06 | 南京宝色股份公司 | A kind of manufacturing process of big-size thinning plastic TA5 alloy strip T-type gusset piece |
| CN110153577A (en) * | 2018-02-11 | 2019-08-23 | 上海振华重工(集团)股份有限公司 | A kind of abnormity cabinet robot automation's welding method |
| CN115476064A (en) * | 2022-09-14 | 2022-12-16 | 南通中远海运重工装备有限公司 | Manufacturing process of main beam of tyre gantry crane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0218292A (en) * | 1988-07-07 | 1990-01-22 | Nippon Hoisuto Kk | Manufacture of crane guarder |
| JPH0233090A (en) * | 1988-07-20 | 1990-02-02 | Nippon Hoisuto Kk | Crane girder and manufacture thereof |
| CN101691186A (en) * | 2009-10-10 | 2010-04-07 | 吕传水 | Production process of high-rigidity prestressed crane girder |
| CN102251657A (en) * | 2011-04-08 | 2011-11-23 | 重庆建工集团股份有限公司 | Arching formwork erecting method for assembled framework beam plate |
| CN102489939A (en) * | 2011-11-24 | 2012-06-13 | 吕传水 | Production process of main beam of crane |
| CN102587289A (en) * | 2012-03-31 | 2012-07-18 | 中铁宝桥（扬州）有限公司 | Automatic control pre-assembly device and method for steel box girders |
-
2014
- 2014-12-18 CN CN201410785717.1A patent/CN104607815B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0218292A (en) * | 1988-07-07 | 1990-01-22 | Nippon Hoisuto Kk | Manufacture of crane guarder |
| JPH0233090A (en) * | 1988-07-20 | 1990-02-02 | Nippon Hoisuto Kk | Crane girder and manufacture thereof |
| CN101691186A (en) * | 2009-10-10 | 2010-04-07 | 吕传水 | Production process of high-rigidity prestressed crane girder |
| CN102251657A (en) * | 2011-04-08 | 2011-11-23 | 重庆建工集团股份有限公司 | Arching formwork erecting method for assembled framework beam plate |
| CN102489939A (en) * | 2011-11-24 | 2012-06-13 | 吕传水 | Production process of main beam of crane |
| CN102587289A (en) * | 2012-03-31 | 2012-07-18 | 中铁宝桥（扬州）有限公司 | Automatic control pre-assembly device and method for steel box girders |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879248A (en) * | 2017-07-21 | 2018-04-06 | 南通振华重型装备制造有限公司 | A kind of big beam orbit manufacture craft |
| CN110153577A (en) * | 2018-02-11 | 2019-08-23 | 上海振华重工(集团)股份有限公司 | A kind of abnormity cabinet robot automation's welding method |
| CN108747065A (en) * | 2018-05-22 | 2018-11-06 | 南京宝色股份公司 | A kind of manufacturing process of big-size thinning plastic TA5 alloy strip T-type gusset piece |
| CN115476064A (en) * | 2022-09-14 | 2022-12-16 | 南通中远海运重工装备有限公司 | Manufacturing process of main beam of tyre gantry crane |
| CN115476064B (en) * | 2022-09-14 | 2023-06-30 | 南通中远海运重工装备有限公司 | Manufacturing process of main beam of tyre gantry crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104607815B (en) | 2016-08-17 |
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