CN202449738U - Web structure for box type girder of bridge crane - Google Patents
Web structure for box type girder of bridge crane Download PDFInfo
- Publication number
- CN202449738U CN202449738U CN2012200601584U CN201220060158U CN202449738U CN 202449738 U CN202449738 U CN 202449738U CN 2012200601584 U CN2012200601584 U CN 2012200601584U CN 201220060158 U CN201220060158 U CN 201220060158U CN 202449738 U CN202449738 U CN 202449738U
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- web
- box girder
- box type
- web structure
- type girder
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- Expired - Fee Related
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Abstract
The utility model discloses a web structure for a box type girder of a bridge crane. A box type girder comprises left and right webs and upper and lower cover plates and is characterized in that the left and right webs have whole plate structures formed by flatting rolled plates; the left and right webs and the upper and lower cover plates are combined into the box type girder in a whole plate welding mode; a rail, of which a cross section is made of irregular I-shaped steel, is connected with the bottom of the webs; opposite arc surfaces extending toward the outer side of waist are arranged on inside walls of upper and lower leg parts of the irregular I-shaped steel; and a circular arc surface is arranged at an edge of an external end part. The problem existing in the manufacturing process of the box type girder is thoroughly solved by the web structure provided by the utility model. The web structure is simple in structure, convenient in splicing and excellent in popularization value.
Description
Technical field
The utility model relates to the hoisting crane technical field, relates to a kind of crane in bridge type box girder web structure more specifically.
Background technology
The flat board that most hoisting crane originating firms web when producing girder adopts steel mill to produce splices to be made, so make easy wave and the warpage of producing of completion trailing web because web need dock at girder.Like one Chinese patent application number is CN200420104706.4, and denomination of invention is a crane in bridge type box girder web structure, and box girder is made up of two blocks of webs and upper and lower cover plate; It is characterized in that, a web in the box girder longitudinally is transformed into the waveform by the sine curve function, form by waveform master web; Straight secondary web, lower cover, the box girder that upper cover plate is formed; Waveform master web, straight secondary web and lower cover, upper cover plate welding, box girder is fixed on two end carriages.This patent structure adopts the arrangement of a slabbing web and a corrugated web; Can increase the stability of web significantly in vertical direction; But butt weld is found again to have problems such as a lot of pores and slag inclusion when flaw detection, and the quality of product is not easy to be guaranteed.
Summary of the invention
The purpose of the utility model is exactly in order to solve the deficiency of prior art; And provide a kind of not only simple in structure; Easy for installation, and solved warpage, the wave degree of the girder web crane in bridge type box girder web structure that causes the quality problems that hoisting crane exists such as big.
The utility model is to adopt following technical solution to realize above-mentioned purpose:
A kind of crane in bridge type box girder web structure, box girder comprise left and right sides web and cover plate up and down, it is characterized in that said left and right sides web is that roll bending is opened flat whole plate structure.
As further specifying of such scheme: said left and right sides web and up and down cover plate adopt the mode amalgamation box girder of whole plate welding.
Said web bottom is connected with the track that the cross section is special-shaped I-beam section, and this abnormal shape I-beam section shank medial surface up and down is the relative cambered surface of extending towards the waist outside, and the edge, outer end is an arc surface.
The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:
1, the utility model adopts whole plate to open flat steel plate causes sheet deformation in transportation, in depositing and carrying the problem that solved.
2, problems such as pore that welding process in the web splicing produces, slag inclusion, undercut have been reduced.
3, cancelled polishing that the flaw detection of girder brings, operation such as do over again has shortened the duration.
4, the use of monoblock web has solved warpage, the wave degree of the girder web quality problems that cause hoisting crane to exist such as big, for bigger breakthrough has been made in the production of hoisting crane.
Description of drawings
Fig. 1 is the mounting structure scheme drawing of the utility model;
Fig. 2 is the structural representation of the utility model.
Description of reference numerals: 1, box girder 2, end carriage 3, dolly 4, upper cover plate 5, lower cover 6, left web 7, right web.
The specific embodiment
Like Fig. 1, shown in Figure 2; The utility model crane in bridge type box girder web structure; Box girder 1 comprises left and right sides web 6,7 and cover plate 4,5 up and down; Two box girders 1 are fixed between two end carriages 2, and dolly 3 is housed on the box girder 1, and left and right sides web 6,7 is opened structure flat, that the numerical control machine cut gives camber for roll bending.Left and right sides web and up and down cover plate adopt the mode amalgamation box girder of whole plate welding.Web bottom, the said left and right sides can be connected with the orbit that the cross section is special-shaped I-beam section, and this abnormal shape I-beam section shank medial surface up and down is the relative cambered surface of extending towards the waist outside, and the edge, outer end is an arc surface.
The utility model adopts whole plate to open flat steel plate causes sheet deformation in transportation, in depositing and carrying the problem that solved; Problems such as pore that welding process in the web splicing produces, slag inclusion, undercut have been reduced; Cancelled polishing that the flaw detection of girder brings, operation such as do over again shortened the duration; The use of monoblock web has solved warpage, the wave degree of the girder web quality problems that cause hoisting crane to exist such as big, for bigger breakthrough has been made in the production of hoisting crane.
Above-described only is the preferred implementation of the utility model; Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; Can also make some distortion and improvement, these all belong to the protection domain of the utility model.
Claims (3)
1. crane in bridge type box girder web structure, box girder comprise left and right sides web and cover plate up and down, it is characterized in that said left and right sides web is that roll bending is opened flat whole plate structure.
2. a kind of crane in bridge type box girder web structure according to claim 1 is characterized in that, said left and right sides web and up and down cover plate adopt the mode amalgamation box girder of whole plate welding.
3. a kind of crane in bridge type box girder web structure according to claim 1; It is characterized in that; Said web bottom is connected with the track that the cross section is special-shaped I-beam section, and this abnormal shape I-beam section shank medial surface up and down is the relative cambered surface of extending towards the waist outside, and the edge, outer end is an arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200601584U CN202449738U (en) | 2012-02-23 | 2012-02-23 | Web structure for box type girder of bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200601584U CN202449738U (en) | 2012-02-23 | 2012-02-23 | Web structure for box type girder of bridge crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202449738U true CN202449738U (en) | 2012-09-26 |
Family
ID=46865620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200601584U Expired - Fee Related CN202449738U (en) | 2012-02-23 | 2012-02-23 | Web structure for box type girder of bridge crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202449738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672801A (en) * | 2017-03-29 | 2017-05-17 | 郑州大学 | Oblique reinforcement type box-shaped main girder structure of crane |
-
2012
- 2012-02-23 CN CN2012200601584U patent/CN202449738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672801A (en) * | 2017-03-29 | 2017-05-17 | 郑州大学 | Oblique reinforcement type box-shaped main girder structure of crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20170223 |