CN205299053U - High strength tongue and groove circle quarter bend - Google Patents
High strength tongue and groove circle quarter bend Download PDFInfo
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- CN205299053U CN205299053U CN201521037963.5U CN201521037963U CN205299053U CN 205299053 U CN205299053 U CN 205299053U CN 201521037963 U CN201521037963 U CN 201521037963U CN 205299053 U CN205299053 U CN 205299053U
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- quarter bend
- notch
- circular arc
- circle quarter
- bending
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Abstract
The utility model discloses a high strength tongue and groove circle quarter bend, including the steel sheet bend surround and weld formation round quarter bend structure, the circle quarter bend comprises a n circular arc side, is equipped with the fashioned sunken notch of bending between the adjacent side in circular arc side, and be equipped with the samely with the notch direction inside every notch and the width is greater than the fashioned inside slide of bending of notch. Be equipped with the fashioned sunken notch of bending on this high strength tongue and groove circle quarter bend's the side, inside be equipped with the samely with the notch direction and the width is greater than the fashioned inside slide of bending of notch at the notch, this inertia couple of promotion that such structural design can be by a wide margin to promote bending resistance, the torsional strength of this yuan of quarter bend. Confirm with the experiment according to finite element analysis, the utility model provides a high strength tongue and groove circle quarter bend compares with the ordinary round quarter bend of equal diameter, and its inertia couple obviously improves.
Description
Technical field
This utility model relates generally to the technical field of clod wash steel plate foldable structure section bar, is specifically related to a kind of high intensity tongue and groove circle quarter bend.
Background technology
Round steel pipe is the strip steel of a kind of hollow, is pipe fitting the most used in current engineering field. Round steel pipe not only has bending resistance, a torsional strength, and its lighter in weight, it is widely used in manufacturing machine components and engineering structure. Undersized cylindrical tube of the prior art is generally divided into the seamless pipe of hot rolling, seamless cold pipe, extrudes seamless pipe, welds pipe, the cross sectional shape of pipe is exactly generally conventional cylinder, also the pipe of some other cross sectional shapes is occurred in that in recent years, but its moment of inertia does not have greatly improved, the consumption that makes at some field steel for manufacturing machine components and engineering structure can not significantly reduce, and too not big improvement for reducing machine components and engineering project deadweight, promoting intensity.
Additionally connection between existing pipe and fixing or solve by welding, the process characteristic owing to welding self is that connection speed is slow, the poor stability of welding quality, and relatively big by welding operation employee influence factor, common people also are difficult to operation.
Utility model content
In order to solve round steel pipe in prior art, to there is the moment of inertia high and connect the problem and shortage such as difficulty is big, the utility model proposes a kind of high intensity tongue and groove circle quarter bend, in order to promote solution the problems referred to above.
The technical solution of the utility model is: a kind of high intensity tongue and groove circle quarter bend, surround and weld the round quarter bend structure of formation including steel plate bending, described round quarter bend is made up of n circular arc side, the notch of a depression of bending and molding it is provided with between the adjacent side of circular arc side, and width identical with the notch direction inner races more than the bending and molding of notch it is provided with inside each notch, n >=1, integer.
Described notch includes and the two sides that are connected, circle quarter bend side, and described inner races includes above two sides linked together, a bottom surface and two are connected respectively with the two sides of notch.Two of described inner races are vertical with the two sides of notch separately above to be connected, and inner races is square.
In the described each circular arc side constituting circle quarter bend, the side of a pair adjacent circular arc side is had at least to weld together. Or, in the described each circular arc side constituting circle quarter bend, have at least the side of two pairs of adjacent circular arc sides to weld together.
In the described each circular arc side constituting circle quarter bend, have at least between a pair adjacent circular arc side and be connected to reinforcement plate.
Of the present utility model have the technical effect that
1, this high intensity tongue and groove circle quarter bend, its side is provided with the notch of a depression of bending and molding, and width identical with the notch direction inner races more than the bending and molding of notch it is provided with inside notch, such structural design can significantly promote this moment of inertia, thus promoting the bending resistance of this circle quarter bend, torsional strength. Determining according to finite element analysis and experiment, the high intensity tongue and groove circle quarter bend that this utility model provides is compared with isodiametric common round quarter bend, and its moment of inertia can improve several times to tens times, and the moment of inertia forms along with pipe thickness increases and strengthens again.
2, the version of this utility model high intensity tongue and groove circle quarter bend, can the connection between circle quarter bend be coordinated adopts special connecting piece to be bolted, and makes the stability of quality of connection promote, and attachment structure is various informative, motility is strong, significantly reduces the operation easier of connection procedure.
3, this utility model is without being applied to building steel llex cornuta frame, and as auxiliary skeleton, scaffold etc., and can be applied to machinery manufacturing industry for substituting existing square tube or pipe.
Accompanying drawing explanation
Fig. 1 is one of cross section structure schematic diagram of this high intensity tongue and groove circle quarter bend;
Fig. 2 is the perspective view of Fig. 1;
Fig. 3 is the two of the cross section structure schematic diagram of this high intensity tongue and groove circle quarter bend;
Fig. 4 is that circle quarter bend is calculated and analyzes with reference to figure;
Fig. 5 is circle quarter bend equivalent stress calculating figure.
1b. circular arc side, 2. notch, 3. inner races in figure, the side of 2-1. notch, 3-1. inner races above, the side of 3-2. inner races, the bottom surface of 3-3. inner races, 4. weld seam.
Detailed description of the invention
Embodiment one: referring to Fig. 1 and Fig. 2, a kind of high intensity tongue and groove circle quarter bend, monoblock steel plate bending is encircled into round quarter bend, four circular arc side 1b combines. Further, the notch 2 of the depression of bending and molding between each two adjacent circular arc side 1b, it is provided with, totally four depression notches 2.
Fig. 1 it can be seen that be provided with and width identical with the notch 2 direction inner races 3 more than the bending and molding of notch 2 inside each notch 2.
The side 2-1 of two notches that described notch 2 includes and circle quarter bend side is connected, described inner races 3 includes the above 3-1 of the side 3-2 of two inner races linked together, the bottom surface 3-3 of an inner races and two inner races being connected respectively with the two sides of notch 2.
The two sides of described notch 2 are vertical with the side of circle quarter bend to be connected, and two of described inner races 3 are vertical with the two sides of notch 2 separately above to be connected, and inner races 3 is square.
It can be seen that four circular arc side 1b of circle quarter bend are by bending or folding composition, welding together, form the weld seam 4 connected after the docking of least significant end dual-side.
High intensity tongue and groove circle quarter bend production technology:
Monoblock steel plate bending is encircled into round quarter bend, four circular arc side 1b combines.Further, the notch 2 of the depression of bending and molding between each two adjacent circular arc side 1b, it is provided with, totally four depression notches 2.
Fig. 1 it can be seen that be provided with and width identical with the notch 2 direction inner races 3 more than the bending and molding of notch 2 inside each notch 2.
The side 2-1 of two notches that described notch 2 includes and circle quarter bend side is connected, described inner races 3 includes the above 3-1 of the side 3-2 of two inner races linked together, the bottom surface 3-3 of an inner races and two inner races being connected respectively with the two sides of notch 2.
The two sides of described notch 2 are vertical with the side of circle quarter bend to be connected, and two of described inner races 3 are vertical with the two sides of notch 2 separately above to be connected, and inner races 3 is square.
It can be seen that four circular arc side 1b of circle quarter bend are by bending or folding composition, welding together, form the weld seam 4 connected after the docking of least significant end dual-side.
Its production technology comprises the steps;
A. by after the steel plate after smooth, square vertical projections is formed by after the sheet metal bending of the bottom width of above-mentioned inner races, all the other steel plates keep vertical with the two sides of this vertical projections, and the height of this square vertical projections is equal to the width sum of the width above the width of a side of inner races, inner races one, one side of notch;
B. repeat step a totally four times, form four vertical projections; Or step a concurrently forms four vertical projections;
C. the groove that the two sides bottom fold of the square projection in step a caves inward, the height of this groove is identical with the notch height of described round quarter bend, form the lateral projection to both sides on groove top, between lateral projection and groove, the inner races of step depth and described round quarter bend is as above; After step c completes, vertical projections becomes the projection of T-shaped,
D. the both sides of each vertical projections in stepb, are repeated once step c, or carry out step c in four vertical projections simultaneously;
E. forming the projection of four T-shaped after step d completes, the steel plate at the interval between the projection of adjacent T-shaped carries out circular arc bending, steel plate is encircled into profile for circle quarter bend, and the joint at steel plate is attached by welding.
Embodiment two: referring to Fig. 3. The present embodiment is essentially identical with embodiment one, and something in common does not repeat, and difference is: in the present embodiment, and the circular arc side 1b quantity of composition circle quarter bend is not limited to four, and the present embodiment adopts six circular arc side 1b and six depression notches 2.
It addition, on the basis of embodiment one and two, adjust the position of its weld seam 4, four sides such as the round quarter bend as described in being adjusted to have at least a side to be provided with the attachment weld 4 of steel plate in being, can form new embodiment.
After positioning, intensity substantially conforms to instructions for use to all above junction point of the present invention. For reaching to recycle purpose, it is possible to recycled by dismounting mode. And, when being left out reusing, it is also possible to supplemented by spot welding mode fixing, strengthen connectivity. Under the guide of the design of the present invention, the change to notch shape, and the change to slip shape, as long as its purpose is consistent with the purpose of the present invention, belong to protection scope of the present invention, do not repeat one by one at this.
In order to verify the significantly lifting of the moment of inertia of circle quarter bend in this utility model, round quarter bend of the present utility model has been carried out following calculating and analysis by utility model people:
Several circle quarter bends taking overall dimensions same carry out specificity analysis,
Circle quarter bend property list
The square tube the moment of inertia such as following table that size in contrast is approximate
| 180x180 | 80 | 20 | 15 | 5 | 1 | 2400 | 5514200 |
Round quarter bend equivalent stress result shown in Figure 5.
Conclusion: according to contrast it can be seen that circle quarter bend and square tube (substantially waiting girth, h1, h2, b1, b2 is equal) the moment of inertia increase 10%-20%; Quarter bend h1 is more big for circle, and overall the moment of inertia is more little, and during value, h1 should get the small value as far as possible; The change of the moment of inertia is affected relatively big by h2, and h2 is more big, and the moment of inertia is more big; Other parameters are inconspicuous to the contribution of the moment of inertia.
According to finite element analysis, it is basically identical that the anti-energy at yield force rate of circle quarter bend probably can improve 10%-25%, shear resistance and anti-pressure ability with the imitative bending resistance of square tube of size, is suitable for doing bending resistance component.
Additionally utility model people has carried out finite element analysis by software, show that this circle quarter bend substantially increases than the anti-surrender ability of the C-type steel of same size, and anti-surrender ability is relevant with wall thickness, during 1mm wall thickness, anti-surrender ability improves 1.5 times, improves 11 times during 2mm wall thickness, improves 26 times during 3mm. So it is estimated that, if building steel structure room with 3mm, circle quarter bend is at least built to 7 layers, uses so being suitable for high residential building.
Above-mentioned calculating and analysis can draw substantially getting a promotion of the moment of inertia justifying quarter bend in this utility model.
Claims (6)
1. a high intensity tongue and groove circle quarter bend, surround and weld the round quarter bend structure of formation including steel plate bending, it is characterized in that: described round quarter bend is made up of n circular arc side, the notch of a depression of bending and molding it is provided with between the adjacent side of circular arc side, and width identical with the notch direction inner races more than the bending and molding of notch it is provided with inside each notch, n >=1, integer.
2. high intensity tongue and groove according to claim 1 circle quarter bend, it is characterized in that: described notch includes and the two sides that are connected, circle quarter bend side, described inner races includes above two sides linked together, a bottom surface and two are connected respectively with the two sides of notch.
3. high intensity tongue and groove according to claim 2 circle quarter bend, is characterized in that: two of described inner races are vertical with the two sides of notch separately above to be connected, and inner races is square.
4. the high intensity tongue and groove circle quarter bend according to any one of claim 1-3, is characterized in that: in the described each described circular arc side constituting circle quarter bend, have at least the side of a pair adjacent circular arc side to weld together.
5. the high intensity tongue and groove circle quarter bend according to any one of claim 1-3, is characterized in that: in the described each described circular arc side constituting circle quarter bend, have at least the side of two pairs of adjacent circular arc sides to weld together.
6. the high intensity tongue and groove circle quarter bend according to any one of claim 1-3, is characterized in that: in the described each described circular arc side constituting circle quarter bend, have at least between a pair adjacent circular arc side and be connected to reinforcement plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037963.5U CN205299053U (en) | 2015-12-15 | 2015-12-15 | High strength tongue and groove circle quarter bend |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037963.5U CN205299053U (en) | 2015-12-15 | 2015-12-15 | High strength tongue and groove circle quarter bend |
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| Publication Number | Publication Date |
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| CN205299053U true CN205299053U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521037963.5U Expired - Fee Related CN205299053U (en) | 2015-12-15 | 2015-12-15 | High strength tongue and groove circle quarter bend |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387333A (en) * | 2015-12-15 | 2016-03-09 | 河南奥斯派克科技有限公司 | High-strength concave-convex groove circular-rectangular tube |
-
2015
- 2015-12-15 CN CN201521037963.5U patent/CN205299053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387333A (en) * | 2015-12-15 | 2016-03-09 | 河南奥斯派克科技有限公司 | High-strength concave-convex groove circular-rectangular tube |
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| 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: 20160608 Termination date: 20191215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |