CN105540429B - A kind of crane girder and its processing method - Google Patents
A kind of crane girder and its processing method Download PDFInfo
- Publication number
- CN105540429B CN105540429B CN201610060714.0A CN201610060714A CN105540429B CN 105540429 B CN105540429 B CN 105540429B CN 201610060714 A CN201610060714 A CN 201610060714A CN 105540429 B CN105540429 B CN 105540429B
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- web
- girder
- top plate
- reinforcing frame
- welded
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of crane girder, including the first web, the second web, reinforcing frame, top plate and bottom plate, top plate and bottom plate connect the top and bottom of the first web and the second web respectively, reinforcing frame is arranged at intervals inside girder, is fixedly connected respectively with the first web, the second web, top plate and bottom plate；First web and the second web are provided with camber, and the first web and the second web are segmented and be welded, and dislocation distance is set between each segmented seam of the first web and each segmented seam of the second web.Segmented welding is carried out by the first web to girder and the second web, and each segmented seam of two webs is kept into certain dislocation distance, so that the stressing conditions of girder are disperseed due to the setting of each weld seam, pass through new processing technology, so that the rigidity of girder is strengthened, it is effectively prevented large-span girder and amount of deflection caused by moment of flexure is produced due to deadweight.
Description
Technical field
The present invention relates to crane technical field, more particularly to a kind of crane girder and processing method.
Technical background
Crane is commonly used in industrial and mining enterprises at home and abroad, and according to the requirement of relevant national standard, camber is
The important technology index of crane, girder can produce amount of deflection under Gravitative Loads, in order to ensure size after beam body installation
Accuracy, in construction, support must set a number of camber value, and moment of flexure is produced so as to caused amount of deflection to offset deadweight.
In the production of reality, due to being limited by traditional technique and amount of deflection calculation, large span can not be completed
Beam body processing, according to GB/T14405-2011《General-purpose overhead crane》》And GB/T14406-2011《General gate-type rises
Heavy-duty machine》Regulation to camber value calculate after, after beam body span exceedes certain numerical value, can not still be offset in actual condition due to
Deadweight and caused moment of flexure caused by amount of deflection.
In view of the defects of above-mentioned existing crane girder is present, the present inventor is more based on such product engineering application is engaged in
The practical experience and professional knowledge that year enriches, and coordinate the utilization of scientific principle, actively it is subject to research and innovation, to found a kind of lifting
Machine information statistical system, it is set to have more practicality
The content of the invention
A kind of crane girder and its processing method are provided in the present invention, passes through the first web and the second abdomen to girder
Plate carries out segmented welding, and each segmented seam of two webs is kept into certain dislocation distance so that the stressing conditions of girder due to
The setting of each weld seam and disperse, by set camber and use new processing technology so that the rigidity of girder is strengthened, effectively
Prevent large-span girder to produce amount of deflection caused by moment of flexure due to deadweight.
The technical scheme that the present invention takes is：A kind of crane girder, including the first web, the second web, reinforcing frame, top
Plate and bottom plate, top plate and bottom plate connect the top and bottom of the first web and the second web respectively, and reinforcing frame is arranged at intervals at master
Inside beam, it is fixedly connected respectively with the first web, the second web, top plate and bottom plate；
First web and the second web are provided with camber, and the first web and the second web are segmented and be welded, the
Dislocation distance is set between each segmented seam of one web and each segmented seam of the second web.
Further, top plate and bottom plate are covered each by top surface and the bottom surface of the first web and the second web.
Further, girder is provided with sectionalizing joint and girder is split, and sectionalizing joint both ends are connected by connecting plate.
Further, sectionalizing joint both ends and connecting plate pass through the bolt connection that is uniformly arranged.
A kind of processing method of crane girder, comprises the following steps：
A, default camber is pressed to the web of girder first and the second web and carries out discharge；
B, the welding of reinforcing frame is completed, reinforcing frame is arranged inside the girder；
C, girder top plate is arranged on jig, reinforcing frame is welded on top plate successively by setpoint distance；
D, the first web and the second web are welded with the top plate and reinforcing frame for completing welding respectively
E, bottom plate is welded with the first web, the second web and reinforcing frame respectively.
Further, when carrying out discharge to the first web and the second web, datum line need to be set, and press datum line and camber
From span centre to both sides discharge.
Further, reinforcing frame is welded by angle steel, and the width of reinforcing frame is less than the width of top plate, and reinforcing frame welds
After on top plate, keep left and right gap equal.
Further, when the first web and the second web are welded with the top plate, the first web and the second web
Inner side is fixedly connected with reinforcing frame respectively, at the top of the first web and the second web inside and outside respectively with top plate carry out sequential welding
Connect.
Further, when the first web and the second web are fixedly connected with top plate, fixed first using spot welding mode.
Further, when the first web and the second web are welded with the bottom plate, the first web and the second web bottom
Continuously welded with bottom plate on the outside of portion.
Further, when the first web and the second web are fixedly connected with bottom plate, fixed first using spot welding mode.
After employing above-mentioned technical proposal, the present invention has following beneficial effect：
1st, segmented welding is carried out by the first web to girder and the second web, and each segmented seam of two webs is kept
Certain dislocation distance so that the stressing conditions of girder are disperseed due to the setting of each weld seam；
2nd, pass through new processing technology so that the rigidity of girder is strengthened, be effectively prevented large-span girder due to
Conduct oneself with dignity and produce amount of deflection caused by moment of flexure；
3rd, by setting sectionalizing joint so that girder easily facilitates transport, and easy for installation at the scene；
The 4th, datum line is set, and press datum line and camber from span centre to both sides discharge, the chi being effectively guaranteed after welding
Very little precision；
5th, the first web and the second web are carried out before continuously welding with top plate and bottom plate respectively, are fixed first by spot welding,
The cost brought due to faulty operation can be effectively reduced to waste, when the structure after being fixed by spot welding is continuously welded, weldering
Stitch more neat and accurate positioning.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it is therefore apparent that drawings in the following description are only this hair
Some embodiments described in bright, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of crane girder of the present invention；
Fig. 2 is the structural representation of the first web；
Fig. 3 is the structural representation of the second web；
Fig. 4 is the partial enlarged drawing at A in Fig. 1；
Mark meaning in accompanying drawing：1 first web, 2 second webs, 4 top plates, 5 bottom plates, 6 datum lines.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention
Scope.
The embodiment of the present invention is write by the way of progressive.
As shown in Figure 1 to 4, a kind of crane girder, including the first web 1, the second web 2, reinforcing frame, the and of top plate 4
Bottom plate 5, top plate 4 and bottom plate 5 connect the top and bottom of the first web 1 and the second web 2 respectively, and reinforcing frame is arranged at intervals at master
Inside beam, it is fixedly connected respectively with the first web 1, the second web 2, top plate 4 and bottom plate 5；First web 1 and the second web 2 are equal
Camber is provided with, and the first web 1 and the second web 2 are segmented and be welded, each segmented seam and the second abdomen of the first web 1
Each segmented seam of plate 2 need to keep certain dislocation distance；It is segmented by the first web 1 to girder and the second web 2
Welding, and each segmented seam of two webs is kept into certain dislocation distance so that the stressing conditions of girder are set due to each weld seam
Put and disperse.
Top plate 4 and bottom plate 5 are covered each by the top surface of the first web 1 and the second web 2 and bottom surface, girder are provided with segmentation and connect
Head is split to girder, sectionalizing joint both ends are connected with connecting plate respectively；State sectionalizing joint pass through with the connecting plate it is uniform
The bolt connection of setting；By setting sectionalizing joint so that girder easily facilitates transport, and easy for installation at the scene.
A kind of processing method of crane girder, comprises the following steps：
A, default camber is pressed to girder the first web 1 and the second web 2 and carries out discharge, to the first web 1 and the second web 2
When carrying out discharge, datum line 6 need to be set, and by datum line 6 and camber from span centre to both sides discharge；The setting of datum line 6 is effective
Ensure that welding after dimensional accuracy；
B, the welding of reinforcing frame is completed, reinforcing frame is arranged inside the girder, and reinforcing frame is welded by angle steel, is strengthened
The width of frame is less than the width of top plate 4, and after reinforcing frame welding on the top plate 4, keeps left and right gap equal；
C, girder top plate 4 is arranged on jig, reinforcing frame is welded on the top plate 4 successively by setpoint distance；
D, the first web 1 and the second web 2 are welded with the top plate 4 and reinforcing frame for completing welding respectively, the first abdomen
When the web 2 of plate 1 and second is welded with top plate 4, the inner side of the first web 1 and the second web 2 is fixed with reinforcing frame respectively to be connected
Connect, the both sides at the first web 1 and the top of the second web 2 are continuously welded with top plate 4 respectively, and point is used first before continuous welding
Weldering mode is fixed；
E, bottom plate 5 is welded with the first web 1, the second web 2 and reinforcing frame respectively, the first web 1 and the second abdomen
When plate 2 is welded with bottom plate 5, the first web 1 and the bottom outside of the second web 2 are continuously welded with bottom plate 5, continuous welding
It is preceding to be fixed first using spot welding mode；
Before first web 1 and the second web 2 are continuously welded with top plate 4 and bottom plate 5 respectively, pass through a solid welding first
It is fixed, it can effectively reduce the cost brought due to faulty operation and waste, when the structure after being fixed by spot welding is continuously welded,
Weld seam is more neat and accurate positioning；Pass through new processing technology so that the rigidity of girder is strengthened, and is effectively prevented big
Span girder produces amount of deflection caused by moment of flexure due to deadweight.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (2)
- A kind of 1. processing method of crane girder, for the processing of following crane girder：The crane girder, including the first web (1), the second web (2), reinforcing frame, top plate (4) and bottom plate (5 ), the top plate (4) and bottom plate (5) connect the top and bottom of first web (1) and the second web (2) respectively Portion, the reinforcing frame are arranged at intervals inside the girder, respectively with first web (1), the second web (2), top Plate (4) is fixedly connected with bottom plate (5)；First web (1) and the second web (2) are provided with camber, and first web (1) and the second abdomen Plate (2) is segmented and is welded, each segmented seam of first web (1) and each point of second web (2) Dislocation distance is set between section seam；Top plate (4) and bottom plate (5) are covered each by top surface and the bottom surface of first web (1) and the second web (2)；The girder is provided with sectionalizing joint and girder is split, and the sectionalizing joint both ends are connected with connecting plate respectively；The sectionalizing joint and the connecting plate pass through the bolt connection that is uniformly arranged；It is characterised in that it includes following steps：A, default camber is pressed to the web of girder first (1) and the second web (2) and carries out discharge；B, the welding of reinforcing frame is completed, the reinforcing frame is arranged inside the girder；C, girder top plate (4) is arranged on jig, the reinforcing frame is welded on the top by setpoint distance successively On plate (4)；D, first web (1) and the second web (2) are carried out with the top plate (4) and reinforcing frame for completing welding respectively Welding；E, bottom plate (5) is welded with first web (1), the second web (2) and reinforcing frame respectively；When carrying out discharge to first web (1) and the second web (2), datum line (6) need to be set, and press the base Directrix (6) and camber are from span centre to both sides discharge；The reinforcing frame is welded by angle steel, and the width of the reinforcing frame is less than the width of the top plate (4), and it is described plus After strong frame is welded on the top plate (4), keep left and right gap equal；When first web (1) and the second web (2) are welded with the top plate (4), first web (1 ) and the inner side of the second web (2) be fixedly connected respectively with the reinforcing frame, first web (1) and the second web (2 ) at the top of inside and outside continuously welded with top plate (4) respectively；When first web (1) and the second web (2) are welded with the bottom plate (5), first web (1) and Second web (2) bottom outside is continuously welded with the bottom plate (5).
- 2. the processing method of crane girder according to claim 1, it is characterised in that first web (1) and When second web (2) is fixedly connected with the top plate (4), fixed first using spot welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610060714.0A CN105540429B (en) | 2016-01-28 | 2016-01-28 | A kind of crane girder and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610060714.0A CN105540429B (en) | 2016-01-28 | 2016-01-28 | A kind of crane girder and its processing method |
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| Publication Number | Publication Date |
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| CN105540429A CN105540429A (en) | 2016-05-04 |
| CN105540429B true CN105540429B (en) | 2018-03-27 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106270967A (en) * | 2016-08-31 | 2017-01-04 | 中车四方车辆有限公司 | The section of executing welds box framework assembly welding method in advance |
| CN106475700A (en) * | 2016-12-23 | 2017-03-08 | 中国二冶集团有限公司 | A kind of manufacture method of fusiformis roof girder |
| CN111774743A (en) * | 2020-06-04 | 2020-10-16 | 中煤北京煤矿机械有限责任公司 | Method for assembling and welding reinforced top beam of secondary top plate |
| CN112935233A (en) * | 2021-01-28 | 2021-06-11 | 中车株洲车辆有限公司 | Camber beam, camber beam assembly welding method, frame and frame welding method |
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| CN2145690Y (en) * | 1992-12-17 | 1993-11-10 | 王高岭 | Bamboo-made laminated board |
| CN2759976Y (en) * | 2004-07-27 | 2006-02-22 | 陶鹤龄 | Carrier bar built up of corrugated shaped form bars |
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| CN105540429A (en) | 2016-05-04 |
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