CN101623722A - Method and device for correcting bending deformation of main beam of container - Google Patents
Method and device for correcting bending deformation of main beam of container Download PDFInfo
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- CN101623722A CN101623722A CN200810068349A CN200810068349A CN101623722A CN 101623722 A CN101623722 A CN 101623722A CN 200810068349 A CN200810068349 A CN 200810068349A CN 200810068349 A CN200810068349 A CN 200810068349A CN 101623722 A CN101623722 A CN 101623722A
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Abstract
The invention provides a method and a device for correcting bending deformation of a main beam of a container. The correcting method comprises the following steps: placing the main beam to be corrected between a support and brackets of the correcting device; dividing a camber of the main beam into a plurality of equant points; aligning the brackets to two symmetrical equant points; using the middle position of two brackets as a correcting point; applying a mechanical acting force to the correcting point so that the main beam generates reverse plastic deformation; and moving the main beam to be corrected, and finding out new correcting points and correcting pivots to carry out correction point by point, and the like. The correcting method has the advantages of high correcting efficiency, high speed and good effect, and can play a certain role of cold hardening and improve the strength of the main beam of the container. The correcting device consists of a correcting platform, the support, the brackets, a force application device and the like. The correcting device has the advantages of simple structure, convenient operation and low manufacturing cost.
Description
Technical field
The present invention relates to the bearing calibration and the means for correcting of beam deformed, relate in particular to the bearing calibration and the means for correcting of bending deformation of main beam of container.
Background technology
Because chassis of container in order to increase cargo space, need increase the overall width of timber floor as much as possible on width, do not influencing on the intensity based, the bottom side beams of container is designed to the left and right sides asymmetric I type beam.As shown in Figure 1, I type beam 1 is welded by upper flange 10, lower wing plate 20, web 30, and symmetrical substantially when web 30 welds with lower wing plate 20, upper flange 10 is asymmetric with the welding left and right sides of web 30, causes I type beam 1 overall left and right sides dissymmetrical structure.
Because the I type beam 1 of this dissymmetrical structure, as shown in Figure 2, the stress deformation after welding has caused entire I type beam 1 to produce serious side sway, makes I type beam 1 produce side bending deformation amount of deflection f.According to the requirement of container iso standard, each parts of whole case can not surpass that horizontal plane of 8 corner fittings decisions, therefore, the bottom side beams of serious side sway can produce the serious corner fittings problem that exceeds, and like this have the gap with floor, cross member, corner fittings assembling, so this side sway I type beam 1 can't carry out erection welding.
In order to address the above problem, must proofread and correct the I type beam 1 of serious side sway.Make the linearity of entire I type beam 1 reach the requirement of regulation.
Summary of the invention
The present invention is intended to address the above problem, and bending deformation of main beam of container bearing calibration and means for correcting are provided.
For achieving the above object, a kind of means for correcting of bending deformation of main beam of container, comprise dressing plate, support, bearing, force application apparatus, described dressing plate is used to place girder to be corrected, described support comprises two at least, and is connected on the described dressing plate along the vertical alignment of described dressing plate, and described force application apparatus is fixed on the described bearing, described bearing is connected on the described dressing plate, and described girder is placed between described bearing and the support.
Among the present invention, placed in the middle about described bearing, described support is that the center is symmetrically arranged with described bearing.
Among the present invention, described support vertically moves along described dressing plate.
Among the present invention, described bearing vertically moves along described dressing plate.
Among the present invention, described force application apparatus is hydraulic jack or jack.
The bearing calibration of bending deformation of main beam of container may further comprise the steps:
1), girder to be corrected is placed between the bearing and support of means for correcting, the force application apparatus of the arch face of girder on described bearing, the concave surface of girder are resisted against on the described support, the fulcrum that described support is proofreaied and correct as girder;
2), girder to be corrected one camber is divided into several Along ents, with the described Along ent of two symmetries of described rack alignment;
3), mobile girder or support, bearing, with about the centre position of two described supports as check point, with the force application apparatus alignment correction point on the described bearing.
4), described force application apparatus applies mechanicals efforts to described check point, makes girder produce reverse plastic deformation;
5), move girder to be corrected or support, bearing, find out new check point and proofread and correct fulcrum and carry out pointwise correction;
6), repeat aforesaid operations, finish the correction of whole girder.
Among the present invention, described force application apparatus is hydraulic jack or jack.
Among the present invention, described force application apparatus applies mechanicals efforts to described check point should be greater than the drag of opposing girder plastic deformation.
Among the present invention, in step 4, described force application apparatus applies the time that mechanicals efforts will keep certain effect to described check point.
Among the present invention, comprise also that after step 6 step is: the linearity of ray examination girder is always drawn at the girder two ends after having proofreaied and correct.
Beneficial effect of the present invention is: the bearing calibration efficient height of bending deformation of main beam of container, speed are fast, effective, but also can play certain flow harden effect, improve the intensity of main beam of container.Just the girder correction can be reached the requirement of linearity regulation within the general 3 minutes kinds, the linearity of correction generally is less than 5mm.
This means for correcting is except that having to state the bearing calibration advantage, also have simple in structure, easy to operate, the cost cost is low.
Description of drawings
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effects apparent by the specific embodiment of the present invention is described in detail.
In the accompanying drawing,
Fig. 1 is a container bottom side beams left and right sides asymmetric I type girder construction schematic diagram;
Fig. 2 welds back side bending deformation schematic diagram for Fig. 1;
Fig. 3 is a bearing calibration principle schematic of the present invention;
Fig. 4 is a means for correcting structural representation of the present invention;
Fig. 5 is the A-A cutaway view of Fig. 4;
The specific embodiment
Technological means and the beneficial effect thereof taked for further setting forth the present invention are described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
As shown in Figure 3, the container bottom side beams left and right sides asymmetric I type beam 1 produces side sway in welding process.In order to make I type beam 1 linearity reach the requirement of regulation.The first step: I type beam 1 one camber f1 to be corrected are divided into several Along ents, select two symmetries Along ent A, B, as the fulcrum of proofreading and correct, I type beam 1 concave surface is resisted against on fixing correction fulcrum A, the B with Along ent A, B; Second step: select to proofread and correct fulcrum A and B centre position as check point C; The 3rd step: apply mechanicals efforts F on check point C, mechanicals efforts F can provide power source by hydraulic tests such as hydraulic jack, jack, and mechanicals efforts F is generally 0～500 ton of kgf.I type beam 1 makes I type beam 1 produce reverse plastic deformation under the effect of mechanicals efforts F.According to the material science principle, the yield strength of metal is meant the drag of metal opposing plastic deformation, quantitative limit stress when being meant metal generation plastic deformation, and plastic deformation also claims permanent deformation.So mechanicals efforts F should just can play calibration result greater than the drag of opposing I type beam 1 plastic deformation.
I type beam 1 makes I type beam 1 back-flexing distortion camber f2 under the effect of mechanicals efforts F.If disposable correction, camber f2 should be greater than the camber f1 before proofreading and correct.If camber f2 should be less than or equal to when proofreading and correct preceding camber f1, just need repeatedly proofread and correct, make I type beam 1 produce reverse plastic deformation gradually, so also compare safety, can not proofread and correct I type beam 1 yet and produce destruction the spy.This is that after the mechanicals efforts F unloading, I type beam 1 can have a rebound because the common metal material when distortion, at first occurs plastic deformation just occurring after the strain.I type beam 1 needs to keep a period of time at timing, and generally about 30 seconds, this is because material deformation character determines.
As shown in Figure 4 and Figure 5, means for correcting comprises the dressing plate 4 of placing the school part, be fixedly connected with the bearing 42 that is used for fixing hydraulic jack 43 at dressing plate 4 left and right sides position of center line, be fixedly connected with the support 41 of 6 settings in bearing 42 corresponding sides, 6 supports 41 align mutually, and are that center line is symmetrically arranged with bearing 42.Bearing 42 has certain spacing distance with support 41, and this spacing distance can be to hold I type beam 1 to be corrected.Support 41 and bearing 42 also can flexibly connect with dressing plate 4, and can vertically move along dressing plate 4.
I type beam 1 trimming process of side bending deformation: at first get the I type beam 1 that produces side bending deformation and be placed between bearing 42 and the support 41, the hydraulic jack 43 of the arch face of I type beam 1 on bearing 42, the concave surface of I type beam 1 is resisted against on the support 41, and each support 41 all is a fulcrum of proofreading and correct I type beam 1.Be noted that here that according to above-mentioned bearing calibration choose and proofread and correct fulcrum and check point, mobile I type beam 1 or support 41, bearing 42 make support 41 alignment correction fulcrums, and I type beam 1 are resisted against on the support 41; Make on the hydraulic jack 43 alignment correction points on the bearing 42.Pad upper padding plate 5 can not fill up yet between hydraulic jack 43 and I type beam 1, directly is resisted against on the check point of I type beam 1.Backing plate 5 can be metallic plate, rubber, plank etc.Then hydraulic jack 43 is injected hydraulic oil, the pressure in the hydraulic jack 43 raises gradually, makes hydraulic jack 43 produce outside thrust, makes I type beam 1 produce reverse plastic deformation, keeps back unloading about 30 seconds, wants slow during unloading.At timing, can disposable correction put in place, also can repeatedly proofread and correct, make I type beam 1 linearity reach the regulation requirement.By mobile I type beam 1 or support 41, bearing 42, reorientate check point and proofread and correct fulcrum then, carry out whole piece I type beam 1 pointwise correction.By repeating aforesaid operations, make the linearity of entire I type beam 1 reach the requirement of regulation.The linearity of ray examination I type beam 1 is always drawn at I type beam 1 two ends after having proofreaied and correct, generally proofreaies and correct by this method, and I type beam 1 linearity after the correction generally is less than 5mm.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.
Claims (10)
1, a kind of means for correcting of bending deformation of main beam of container, it is characterized in that, comprise dressing plate, support, bearing, force application apparatus, described dressing plate is used to place girder to be corrected, described support comprises two at least, and is connected on the described dressing plate along the vertical alignment of described dressing plate, and described force application apparatus is fixed on the described bearing, described bearing is connected on the described dressing plate, and described girder is placed between described bearing and the support.
2, the means for correcting of bending deformation of main beam of container as claimed in claim 1 is characterized in that, placed in the middle about described bearing, described support is that the center is symmetrically arranged with described bearing.
3, the means for correcting of bending deformation of main beam of container as claimed in claim 1 or 2 is characterized in that, described support vertically moves along described dressing plate.
4, the means for correcting of bending deformation of main beam of container as claimed in claim 1 or 2 is characterized in that, described bearing vertically moves along described dressing plate.
5, the means for correcting of bending deformation of main beam of container as claimed in claim 1 or 2 is characterized in that, described force application apparatus is hydraulic jack or jack.
6, a kind of bearing calibration of bending deformation of main beam of container is characterized in that, may further comprise the steps:
1), girder to be corrected is placed between the bearing and support of means for correcting, the force application apparatus of the arch face of girder on described bearing, the concave surface of girder are resisted against on the described support, the fulcrum that described support is proofreaied and correct as girder;
2), girder to be corrected one camber is divided into several Along ents, with the described Along ent of two symmetries of described rack alignment;
3), mobile girder or support, bearing, with about the centre position of two described supports as check point, with the force application apparatus alignment correction point on the described bearing;
4), described force application apparatus applies mechanicals efforts to described check point, makes girder produce reverse plastic deformation;
5), move girder to be corrected or support, bearing, find out new check point and proofread and correct fulcrum and carry out pointwise correction;
6), repeat aforesaid operations, finish the correction of whole girder.
7, the bearing calibration of bending deformation of main beam of container as claimed in claim 6 is characterized in that, described force application apparatus is hydraulic jack or jack.
8, the bearing calibration of bending deformation of main beam of container as claimed in claim 6 is characterized in that, described force application apparatus applies mechanicals efforts to described check point should be greater than the drag of opposing girder plastic deformation.
9, the bearing calibration of bending deformation of main beam of container as claimed in claim 6 is characterized in that, in step 4, described force application apparatus applies the time that mechanicals efforts will keep certain effect to described check point.
10, the bearing calibration of bending deformation of main beam of container as claimed in claim 6 is characterized in that, comprise also that after step 6 step is: the linearity of ray examination girder is always drawn at the girder two ends after having proofreaied and correct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810068349A CN101623722A (en) | 2008-07-07 | 2008-07-07 | Method and device for correcting bending deformation of main beam of container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810068349A CN101623722A (en) | 2008-07-07 | 2008-07-07 | Method and device for correcting bending deformation of main beam of container |
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| CN101623722A true CN101623722A (en) | 2010-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810068349A Pending CN101623722A (en) | 2008-07-07 | 2008-07-07 | Method and device for correcting bending deformation of main beam of container |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756017A (en) * | 2012-06-28 | 2012-10-31 | 燕山大学 | Three-point bending straightening intelligent control strategy for large-sized pipe fitting |
| CN104084451A (en) * | 2014-06-30 | 2014-10-08 | 无锡市威海达机械制造有限公司 | Method for correcting plastic deformation of mechanical part |
| CN104384251A (en) * | 2014-11-26 | 2015-03-04 | 中国航天科技集团公司长征机械厂 | Shell product bus straightness thermal correction tool fixture and correcting technology |
| CN105107883A (en) * | 2015-09-28 | 2015-12-02 | 莱芜钢铁集团有限公司 | Steel straightening device |
| CN108188641A (en) * | 2018-02-13 | 2018-06-22 | 中车贵阳车辆有限公司 | A kind of pre- amount of deflection modulating device of channel steel curb girder |
| CN108435834A (en) * | 2018-02-13 | 2018-08-24 | 中车贵阳车辆有限公司 | A kind of pre- amount of deflection modulating device of I-shaped central sill |
-
2008
- 2008-07-07 CN CN200810068349A patent/CN101623722A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756017A (en) * | 2012-06-28 | 2012-10-31 | 燕山大学 | Three-point bending straightening intelligent control strategy for large-sized pipe fitting |
| CN102756017B (en) * | 2012-06-28 | 2014-10-15 | 燕山大学 | Three-point bending straightening intelligent control strategy for large-sized pipe fitting |
| CN104084451A (en) * | 2014-06-30 | 2014-10-08 | 无锡市威海达机械制造有限公司 | Method for correcting plastic deformation of mechanical part |
| CN104084451B (en) * | 2014-06-30 | 2016-05-11 | 无锡市威海达机械制造有限公司 | The method that machine components plastic deformation is corrected |
| CN104384251A (en) * | 2014-11-26 | 2015-03-04 | 中国航天科技集团公司长征机械厂 | Shell product bus straightness thermal correction tool fixture and correcting technology |
| CN104384251B (en) * | 2014-11-26 | 2016-04-20 | 中国航天科技集团公司长征机械厂 | A kind of shell product bus linearity hot school shape frock clamp and school shape technique thereof |
| CN105107883A (en) * | 2015-09-28 | 2015-12-02 | 莱芜钢铁集团有限公司 | Steel straightening device |
| CN108188641A (en) * | 2018-02-13 | 2018-06-22 | 中车贵阳车辆有限公司 | A kind of pre- amount of deflection modulating device of channel steel curb girder |
| CN108435834A (en) * | 2018-02-13 | 2018-08-24 | 中车贵阳车辆有限公司 | A kind of pre- amount of deflection modulating device of I-shaped central sill |
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Open date: 20100113 |