CN203728410U - Crane and box type girder thereof - Google Patents
Crane and box type girder thereof Download PDFInfo
- Publication number
- CN203728410U CN203728410U CN201320837683.7U CN201320837683U CN203728410U CN 203728410 U CN203728410 U CN 203728410U CN 201320837683 U CN201320837683 U CN 201320837683U CN 203728410 U CN203728410 U CN 203728410U
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- China
- Prior art keywords
- box beam
- thickness
- upper plate
- flange
- lower flange
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Abstract
The utility model discloses a box type girder, which comprises an upper flange, a lower flange, and a plurality of wavy webs evenly arranged between the upper flange and the lower flange, wherein the upper flange is thinned gradually from the middle part to two ends, the lower flange is thinned gradually from the middle part to two ends, the upper flange, the lower flange and the plurality of wavy webs are welded to form the box type girder, and the wavy webs can also be called as corrugated webs. The wavy webs are adopted so as to achieve the effective shearing-resistant total cross section, the shearing-resistant bearing capacity of the section can be enhanced, the section is thinner and light in self weight, and the problem that the flat plate is easily locally buckled and deformed can be overcome, so that the bearing capacity can be improved; in addition, under the condition that the box type girder is subjected to external force, the shearing force diagram of the box type girder is a parabola shape, therefore, according to the equal stress principle, the thicknesses on the two ends of the upper flange and the lower flange can be reduced, so that the strength of the whole girder can be consistent, the self weight of the box type girder can be reduced and the purposes of saving steel and lowering the cost can be achieved. The utility model further discloses a crane comprising the box type girder.
Description
Technical field
The utility model relates to bearing beam technical field, relates in particular to a kind of hoisting crane and box beam thereof.
Background technology
Hoisting crane belongs to the one of elevator machinery, be a kind ofly circulate, the machinery of intermittent moment.A working cycle comprises: load-engaging device is mentioned article from getting thing, is then moved horizontally to appointed place and falls article, then carries out counter motion, makes load-engaging device reposition, to circulate next time.
Hoisting crane comprises girder and end carriage, girder and end carriage are stress members, at present, girder and end carriage are box beam, are to adopt plate welding to form, and general slab-thickness is thicker, the degree of utilization of material is lower, weight is heavier, and local buckling's distortion easily occurs, and causes the load-bearing property of self to decline.
Therefore, how providing a kind of box beam, to improve load-bearing property in reducing own wt, is current those skilled in the art technical matterss urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of box beam, to improve load-bearing property in reducing own wt.Another object of the present utility model is to provide a kind of hoisting crane that comprises above-mentioned box beam.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of box beam, comprise top flange, lower flange and be evenly arranged on described top flange and described lower flange between multiple wave webs, wherein, the thickness of described top flange from middle to two ends attenuation, the thickness of described lower flange from middle to two ends attenuation.
Preferably, above-mentioned top flange comprises the first flat board of multiple docking, the quantity of described the first flat board is Odd number, the thickness of described the first flat board successively decreases to two ends successively from middle, described lower flange comprises the second flat board of multiple docking, the quantity of described the second flat board is Odd number, and the thickness of described the second flat board successively decreases to two ends successively from middle.
Preferably, above-mentioned top flange comprises the first upper plate, the second upper plate and the 3rd upper plate that are arranged in order from left to right, the thickness of described the second upper plate is greater than described the first upper plate and described the 3rd upper plate, described lower flange comprises the first lower plate, the second lower plate and the 3rd lower plate that are arranged in order from left to right, and the thickness of described the second lower plate is greater than described the first lower plate and described the 3rd lower plate.
Preferably, above-mentioned top flange and described lower flange all adopt and are welded and fixed, in the time that exceeding 4mm, the thickness difference between described the first upper plate and described the second upper plate adopts groove welding, thickness difference between in described the second upper plate and described the 3rd upper plate adopts groove welding while exceeding 4mm, in the time that the thickness difference between described the first lower plate and described the second lower plate exceedes 4mm, adopt groove welding, the thickness difference between in described the second lower plate and described the 3rd lower plate adopts groove welding while exceeding 4mm.
Preferably, the transversal surface of above-mentioned wave webs is trapezoidal cross-section structure.
Preferably, the transversal surface of above-mentioned wave webs is sine curve or cosine curve section structure.
Preferably, the transversal surface of above-mentioned wave webs is retangular section structure.
Preferably, the transversal surface of above-mentioned wave webs is circular section structure.
Preferably, the transversal surface of above-mentioned wave webs is triangular section structure.
The utility model also provides a kind of hoisting crane, comprises box beam, and described box beam is the box beam as described in above-mentioned any one.
The box beam that the utility model provides, comprise top flange, lower flange and be evenly arranged on described top flange and described lower flange between multiple wave webs, wherein, the thickness of described top flange is certainly middle to two ends attenuation, the thickness of described lower flange is certainly middle to two ends attenuation, top flange, lower flange and the welding of multiple wave webs form box beam, wherein, wave webs refers to its transversal surface and has bending, instead of plane, concrete can be trapezoidal cross-section structure, sine curve or cosine curve section structure, retangular section structure, circular section structure or triangular section structure etc., wave webs also can be called corrugated web, adopt wave webs can reach shearing resistance total cross-section effective, improve the shear resistant capacity in cross section, thereby can make thinner, from heavy and light, save raw MAT'L, improve stock utilization, overcome the problem of dull and stereotyped easy local buckling distortion, thereby improve load-bearing property, simultaneously, can learn according to the actual loading figure of box beam structure, box beam is subject in the situation of external force, its shear diagram is parabolic shape, equal according to stress so principle, the thickness at the two ends of top flange and lower flange can reduce, it is consistent that thereby the intensity that makes whole beam reaches, thereby reduce the deadweight of box beam, arrive and save steel, the object reducing costs.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The forward sight structural representation of the box beam that Fig. 1 provides for the utility model embodiment;
Box beam the first detailed description of the invention that Fig. 2 provides for the utility model embodiment overlook sectional structure schematic diagram;
Box beam the second detailed description of the invention that Fig. 3 provides for the utility model embodiment overlook sectional structure schematic diagram;
The third detailed description of the invention of box beam that Fig. 4 provides for the utility model embodiment overlook sectional structure schematic diagram;
The 4th kind of detailed description of the invention of box beam that Fig. 5 provides for the utility model embodiment overlook sectional structure schematic diagram;
The 5th kind of detailed description of the invention of box beam that Fig. 6 provides for the utility model embodiment overlook sectional structure schematic diagram;
The side-looking structural representation of the box beam that Fig. 7 provides for the utility model embodiment.
In upper Fig. 1-7:
Wave webs 1, top flange 2, the first upper plate 21, the second upper plate 22, the 3rd upper plate 23, lower flange 3, the first lower plate 31, the second lower plate 32, the 3rd lower plate 33.
Detailed description of the invention
The utility model embodiment provides a kind of box beam, to improve load-bearing property in reducing own wt.
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1-Fig. 7, the forward sight structural representation of the box beam that Fig. 1 provides for the utility model embodiment; Box beam the first detailed description of the invention that Fig. 2 provides for the utility model embodiment overlook sectional structure schematic diagram; Box beam the second detailed description of the invention that Fig. 3 provides for the utility model embodiment overlook sectional structure schematic diagram; The third detailed description of the invention of box beam that Fig. 4 provides for the utility model embodiment overlook sectional structure schematic diagram; The 4th kind of detailed description of the invention of box beam that Fig. 5 provides for the utility model embodiment overlook sectional structure schematic diagram; The 5th kind of detailed description of the invention of box beam that Fig. 6 provides for the utility model embodiment overlook sectional structure schematic diagram; The side-looking structural representation of the box beam that Fig. 7 provides for the utility model embodiment.
The box beam that the utility model embodiment provides, comprise top flange 2, lower flange 3 and be evenly arranged on top flange 2 and lower flange 3 between multiple wave webs 1, wherein, the thickness of top flange 2 is certainly middle to two ends attenuation, the thickness of lower flange 3 is certainly middle to two ends attenuation, top flange 2, lower flange 3 and 1 welding of multiple wave webs form box beam, wherein, wave webs 1 refers to its transversal surface and has bending, instead of plane, concrete can be trapezoidal cross-section structure, sine curve or cosine curve section structure, retangular section structure, circular section structure or triangular section structure etc., wave webs 1 also can be called corrugated web, adopt wave webs 1 can reach shearing resistance total cross-section effective, improve the shear resistant capacity in cross section, thereby can make thinner, from heavy and light, save raw MAT'L, improve stock utilization, overcome the problem of dull and stereotyped easy local buckling distortion, thereby improve load-bearing property, simultaneously, can learn according to the actual loading figure of box beam structure, box beam is subject in the situation of external force, its shear diagram is parabolic shape, equal according to stress so principle, the thickness at the two ends of top flange 2 and lower flange 3 can reduce, it is consistent that thereby the intensity that makes whole beam reaches, thereby reduce the deadweight of box beam, arrive and save steel, the object reducing costs.
The box beam that the utility model embodiment provides is that the web of box beam is designed to wave-like, wave webs 1 is that steel plate is compressing, convenient formation, make simple, compared with the flat web of wave webs 1 and present use, there is higher horizontal rigidity and shear buckling intensity, and in the time that box beam height is higher, adopt corrugated web 1 that the resistance to overturning of box beam is greatly improved.
From middle, the thickness to two ends attenuation and lower flange 3 has two kinds of modes from middle to two ends attenuation to the thickness of top flange 2, one is abrupt changes in thickness, one is gradient thickness, and wherein, gradient thickness is that top flange 2 and lower flange 3 are trapezoidal or triangle, in the time being trapezoidal, the long base of top flange 2 is connected with wave webs 1, and the long base of lower flange 3 is connected with wave webs 1, in the time being triangle, the base of top flange 2 is connected with wave webs 1, and the base of lower flange 3 is connected with wave webs 1.
Abrupt changes in thickness is to adopt the plate of different-thickness to link together, top flange comprises the first flat board of multiple docking, the quantity of described the first flat board is Odd number, the thickness of described the first flat board successively decreases to two ends successively from middle, described lower flange comprises the second flat board of multiple docking, the quantity of described the second flat board is Odd number, the thickness of described the second flat board successively decreases to two ends successively from middle, and, the first middle slab-thickness is the thickest, but the slightly thin thickness correspondence of two the first slab-thicknesses on its both sides is identical, other the first flat board the like, the second dull and stereotyped the same layout on lower flange, for example, top flange 2 comprises the first upper plate 21 being arranged in order from left to right, the second upper plate 22 and the 3rd upper plate 23, the thickness of the second upper plate 22 is greater than the first upper plate 21 and the 3rd upper plate 23, the first upper plate 21 is identical with the thickness of the 3rd upper plate 23, lower flange 3 comprises the first lower plate 31 being arranged in order from left to right, the second lower plate 32 and the 3rd lower plate 33, the thickness of the second lower plate 32 is greater than the first lower plate 31 and the 3rd lower plate 33, the first lower plate 31 is identical with the thickness of the 3rd lower plate 33, simple in structure when abrupt changes in thickness, only multiple plates need to be welded to connect, cost is lower.
Concrete, top flange 2 and lower flange 3 all adopt while being welded and fixed, generally can adopt docking welding, in the time that exceeding 4mm, the thickness difference between the first upper plate 21 and the second upper plate 22 adopts groove welding, thickness difference between in the second upper plate 22 and the 3rd upper plate 23 adopts groove welding while exceeding 4mm, in the time that exceeding 4mm, the thickness difference between the first lower plate 31 and the second lower plate 32 adopts groove welding, thickness difference between in the second lower plate 32 and the 3rd lower plate 33 adopts groove welding while exceeding 4mm, prevents from causing because thickness difference is excessive not prison welding solid.
Wave webs 1 can be set to multiple, to strengthen structural strength, certainly, also can be two, is separately positioned on the edge of top flange 2 and lower flange 3, forms a box beam, can reduce cost of manufacture.
In fixed form, wave webs 1 is welded and fixed with top flange 2, wave webs 1 is welded and fixed with lower flange 3, fixing more firm stable, in addition, wave webs 1 setting vertical with top flange 2, wave webs 1 setting vertical with lower flange 3, can strengthen to a certain extent structural strength, strengthen anti-shear ability, strengthen load-carrying capacity.
Wherein, the transversal surface of wave webs 1 can be various wavy surfaces, it can be trapezoidal cross-section structure, as shown in Figure 2, the wedge angle of the bending part of trapezoidal cross-section structure can have arc transition, scratches operating personal, simultaneously while preventing from assembling, trapezoidal cross-section structure can be well-distributed, thereby further improves structural strength.
The transversal surface of wave webs 1 can be also sine curve or cosine curve section structure, and as shown in Figure 3, meanwhile, sine curve section structure or cosine curve section structure can be well-distributeds, thereby further improve structural strength.
The transversal surface of wave webs 1 can be also retangular section structure, and as shown in Figure 4, the wedge angle of the bending part of retangular section structure can have arc transition, while preventing from assembling, scratch operating personal, meanwhile, retangular section structure can be well-distributed, thereby further improves structural strength.
The transversal surface of wave webs 1 can be also circular section structure, and as shown in Figure 5, the circular arc of circular section structure can be to be less than or equal to circular arc half, and meanwhile, circular section structure can be well-distributed, thereby further improves structural strength.
The transversal surface of wave webs 1 is triangular section structure, and as shown in Figure 6, the wedge angle of the bending part of triangular section structure can have arc transition, while preventing from assembling, scratch operating personal, meanwhile, triangular section structure can be well-distributed, thereby further improves structural strength.
The utility model embodiment also provides a kind of hoisting crane, comprise box beam, this box beam is the box beam as described in above-mentioned any one embodiment, because the load-bearing property of box beam is improved, and the weight of self has obtained reduction, capacity weight must increase so, thereby has directly improved hoisting crane load-bearing property.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a box beam, it is characterized in that, comprise top flange, lower flange and be evenly arranged on described top flange and described lower flange between multiple wave webs, wherein, the thickness of described top flange is from middle to two ends attenuation, and the thickness of described lower flange is certainly middle to two ends attenuation.
2. box beam according to claim 1, it is characterized in that, described top flange comprises the first flat board of multiple docking, the quantity of described the first flat board is Odd number, the thickness of described the first flat board successively decreases to two ends successively from middle, described lower flange comprises the second flat board of multiple docking, and the quantity of described the second flat board is Odd number, and the thickness of described the second flat board successively decreases to two ends successively from middle.
3. box beam according to claim 2, it is characterized in that, described top flange comprises the first upper plate, the second upper plate and the 3rd upper plate that are arranged in order from left to right, the thickness of described the second upper plate is greater than described the first upper plate and described the 3rd upper plate, described lower flange comprises the first lower plate, the second lower plate and the 3rd lower plate that are arranged in order from left to right, and the thickness of described the second lower plate is greater than described the first lower plate and described the 3rd lower plate.
4. box beam according to claim 3, it is characterized in that, described top flange and described lower flange all adopt and are welded and fixed, in the time that exceeding 4mm, the thickness difference between described the first upper plate and described the second upper plate adopts groove welding, thickness difference between in described the second upper plate and described the 3rd upper plate adopts groove welding while exceeding 4mm, in the time that the thickness difference between described the first lower plate and described the second lower plate exceedes 4mm, adopt groove welding, the thickness difference between in described the second lower plate and described the 3rd lower plate adopts groove welding while exceeding 4mm.
5. box beam according to claim 1, is characterized in that, the transversal surface of described wave webs is trapezoidal cross-section structure.
6. box beam according to claim 1, is characterized in that, the transversal surface of described wave webs is sine curve or cosine curve section structure.
7. box beam according to claim 1, is characterized in that, the transversal surface of described wave webs is retangular section structure.
8. box beam according to claim 1, is characterized in that, the transversal surface of described wave webs is circular section structure.
9. box beam according to claim 1, is characterized in that, the transversal surface of described wave webs is triangular section structure.
10. a hoisting crane, comprises box beam, it is characterized in that, described box beam is the box beam as described in the claims 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320837683.7U CN203728410U (en) | 2013-12-17 | 2013-12-17 | Crane and box type girder thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320837683.7U CN203728410U (en) | 2013-12-17 | 2013-12-17 | Crane and box type girder thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203728410U true CN203728410U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320837683.7U Withdrawn - After Issue CN203728410U (en) | 2013-12-17 | 2013-12-17 | Crane and box type girder thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203728410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626030A (en) * | 2013-12-17 | 2014-03-12 | 郑州光华重工有限公司 | Crane and box girder thereof |
-
2013
- 2013-12-17 CN CN201320837683.7U patent/CN203728410U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626030A (en) * | 2013-12-17 | 2014-03-12 | 郑州光华重工有限公司 | Crane and box girder thereof |
| CN103626030B (en) * | 2013-12-17 | 2016-05-18 | 郑州光华重工有限公司 | A kind of crane and box beam thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140723 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |