CN202848877U - Main beam of single-beam crane - Google Patents
Main beam of single-beam crane Download PDFInfo
- Publication number
- CN202848877U CN202848877U CN 201220516998 CN201220516998U CN202848877U CN 202848877 U CN202848877 U CN 202848877U CN 201220516998 CN201220516998 CN 201220516998 CN 201220516998 U CN201220516998 U CN 201220516998U CN 202848877 U CN202848877 U CN 202848877U
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- China
- Prior art keywords
- box body
- bearing plate
- main beam
- shaped cross
- inverted
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- Expired - Fee Related
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Abstract
The utility model relates to a main beam of a single-beam crane. The main beam of the single-beam crane comprises a box body with an in reverted U-shaped cross section, wherein the inverted U-shaped cross section of the box body presents a trapezoid with a wide top surface and a narrow bottom opening. The main beam of the single-beam crane further comprises a lower load bearing plate, wherein a sealing cover of the lower load bearing plate is welded and fixed on the bottom opening of the box body, and is symmetrical about a symmetrical center line of the inverted U-shaped cross section of the box body, and a section of the lower load bearing plate, which extends out of the box body along the width direction, is used for matching with an electric block. The box body adopting the trapezoid structure can reduce the size of the lower load bearing plate to the greatest extent, the section of the lower load bearing plate extending out of the box body along the width direction, which is matched with the electric block, is matched with the corresponding electric block, and a welding joint is positioned at a position with large welding space, so the automatic welding of the welding joint of the main beam can be realized, the splice joint operation is reduced, the arc the lower load bearing plate can be easily formed, and thereby, the manufacturing process is simple.
Description
Technical field
The utility model relates to main beam of single-beam crane.
Background technology
At present, what the girder of single-beam crane generally adopted is the form that I-beam section adds U-shaped groove, for example application number is the girder of 201120191605.5 the disclosed a kind of improved electric single-beam crane of Chinese utility model patent, comprise box body, described box body comprises inverted U-shaped groove, be welded with bearing rib in the U-lag, first the welding of the lower end of I-beam section and bearing rib, use again side plate I-beam section and U-lag weld together during making.But, because the weld seam of U-lag and side plate is longer, and the weld seam of side plate and I-beam section is in the middle part of I-beam section, and relatively being difficult for of the automatic welding of four main welds realizes, need the technique controlled more in welding and the manufacturing process, and U-lag and side plate all need clod wash or calendering formation; And by national current required standard, girder requires certain camber, and then U-lag will form certain camber when the welding combination, and I-beam section also needs to use the method for clod wash or flame heating to form certain camber.To sum up, the girder manufacture craft relative complex of existing form, girder is from great, and horizontal rigidity is difficult for guaranteeing.In addition, limit by the width of I-beam section and the arrangement form of side plate, the girder of this form can not support the use with novel European electric block and ND electric block, can't bring into play the large advantage of its sling height.
The utility model content
The purpose of this utility model provides the simple main beam of single-beam crane of a kind of manufacture craft.
The technical scheme that the utility model main beam of single-beam crane adopts is: main beam of single-beam crane, comprise and have the box body that is inverted U-shaped cross-sectional plane, the inverted U-shaped cross-sectional plane of described box body is trapezoidal that end face is wide, bottom opening is narrow, described main beam of single-beam crane comprises also by being welded and fixed and is sealed on box body bottom opening place and along the symmetrically arranged lower force bearing plate of the symmetrical center line of inverted U-shaped cross-sectional plane that described lower force bearing plate broad ways is stretched out one section of box body and is used for the distance adaptive with electric block.
Adopt the box body of trapezium structure, can reduce the size of lower force bearing plate as far as possible, and lower force bearing plate broad ways is stretched out one section distance adaptive with electric block of inverted U-shaped cross-sectional plane box body, can be supporting with corresponding electric block, and make weld seam be in welding larger position, space, and be convenient to realize the automatic welding of girder weld seam, reduce the splicing operation, and the camber moulding of lower force bearing plate is also relatively easy, so manufacture craft is simple.
Described box body comprises the end face steel plate and is arranged on the web of the both sides of end face steel plate width direction that described inverted U-shaped cross-sectional plane is to be connected by described end face steel plate and web welding to form.Adopt end face steel plate and web welded structure, low to the plate size specification requirement, also be convenient to the moulding of box body.
Be installed with angle bar along the extension of box body length direction on the inner surface of described box body.Angle bar is set guarantees the girder web plate planeness, avoid its distortion.
Described lower force bearing plate is to be shaped by surely rolling section steel manufacture, has not only increased the horizontal rigidity of girder but also saved material.
Description of drawings
Fig. 1: the cross-sectional structure scheme drawing of the utility model main beam of single-beam crane.
The name of each Reference numeral is called among the figure: 1 time force bearing plate, 2 end face steel plates, 3 webs, 4 angle bar.
The specific embodiment
An embodiment of the present utility model as shown in Figure 1, comprise lower force bearing plate 1, end face steel plate 2 and be arranged on two webs 3 between lower force bearing plate 1 and the end face steel plate 2, consist of the box body with the little inverted U-shaped cross-sectional plane in the large end, top thereby two webs, 3 left and right symmetricallies are weldingly fixed on the both sides of end face steel plate 2 Widths and top spacing is large, the bottom spacing is little with end face steel plate 2 is common.Wherein descending force bearing plate 1 is to weld the opening part that is sealed on box body by surely rolling the section steel manufacture shaping again, and force bearing plate 1 broad ways is stretched out box body one segment distance down, is used for adaptive with electric block.In addition, the surface, inside of web 3 and end face steel plate 2 is installed with angle bar 4 along the length direction extension of box body, in order to guarantee the planeness of web 3 and end face steel plate 2, avoids its distortion.
In the above-described embodiments, the box body that main beam of single-beam crane has inverted U-shaped cross-sectional plane is to be formed by end face steel plate 2 and the welding of two webs, 3 one, in other embodiment of the present utility model, this part also can adopt monoblock steel plate calendaring molding, or adopt cold bending to make, again with the fixing formation of lower force bearing plate welding main beam of single-beam crane.
Claims (4)
1. main beam of single-beam crane, comprise and have the box body that is inverted U-shaped cross-sectional plane, it is characterized in that: the inverted U-shaped cross-sectional plane of described box body is trapezoidal that end face is wide, bottom opening is narrow, described main beam of single-beam crane comprises also by being welded and fixed and is sealed on box body bottom opening place and along the symmetrically arranged lower force bearing plate of the symmetrical center line of inverted U-shaped cross-sectional plane that described lower force bearing plate broad ways is stretched out one section of box body and is used for the distance adaptive with electric block.
2. main beam of single-beam crane according to claim 1 is characterized in that: described box body comprises the end face steel plate and is arranged on the web of the both sides of end face steel plate width direction that described inverted U-shaped cross-sectional plane is to be connected by described end face steel plate and web welding to form.
3. main beam of single-beam crane according to claim 1 and 2 is characterized in that: be installed with angle bar along the extension of box body length direction on the inner surface of described box body.
4. main beam of single-beam crane according to claim 1 and 2 is characterized in that: described lower force bearing plate is to be shaped by surely rolling section steel manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516998 CN202848877U (en) | 2012-10-10 | 2012-10-10 | Main beam of single-beam crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516998 CN202848877U (en) | 2012-10-10 | 2012-10-10 | Main beam of single-beam crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202848877U true CN202848877U (en) | 2013-04-03 |
Family
ID=47980097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220516998 Expired - Fee Related CN202848877U (en) | 2012-10-10 | 2012-10-10 | Main beam of single-beam crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202848877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174049A (en) * | 2015-09-15 | 2015-12-23 | 无锡大力神钢构科技有限公司 | Steel structural slide rail |
-
2012
- 2012-10-10 CN CN 201220516998 patent/CN202848877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174049A (en) * | 2015-09-15 | 2015-12-23 | 无锡大力神钢构科技有限公司 | Steel structural slide rail |
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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 |
Granted publication date: 20130403 Termination date: 20191010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |