CN205299047U - High strength tongue and groove antinode circle quarter bend - Google Patents
High strength tongue and groove antinode circle quarter bend Download PDFInfo
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- CN205299047U CN205299047U CN201521037962.0U CN201521037962U CN205299047U CN 205299047 U CN205299047 U CN 205299047U CN 201521037962 U CN201521037962 U CN 201521037962U CN 205299047 U CN205299047 U CN 205299047U
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- quarter bend
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- circular arc
- circle quarter
- circle
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Abstract
The utility model discloses a high strength tongue and groove antinode 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 clod wash buckled plate shape in the gliding bottom surface in inside. The utility model discloses can adopt dedicated connection spare pass through bolted connection the connection cooperation of making plausible between the quarter bend, make the stability of connecting the quality promote, connection structure be various informative, and the flexibility is strong, reduction the connection process's by a wide margin the operation degree of difficulty. Slide bottom be the buckled plate shape, the intensity of this yuan of quarter bend of the promotion that can step forward, frictional force when this buckled plate can also promote between the round quarter bend connection simultaneously.
Description
Technical field
This utility model relates generally to the technical field of cold-pressing quality steel structural shape, is specifically related to a kind of high intensity tongue and groove antinode 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 promote solution the problems referred to above, the utility model proposes a kind of high intensity tongue and groove antinode circle quarter bend.
The technical solution of the utility model is: a kind of high intensity tongue and groove antinode 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, n >=1 it is provided with inside each notch; Notch includes the two sides being connected with adjacent circular arc side, described inner races includes above two sides linked together, a bottom surface and two are connected respectively with the two sides of notch, and the bottom surface of described internal slide is clod wash corrugated plate shape.
The fluctuation direction of the ripple that the fluctuation direction of described ripple is identical or described with the length direction of circle quarter bend is vertical with the length direction of circle quarter bend.
Two of described inner races are vertical with the two sides of notch separately above to be connected, and inner races is square. The cross section of described ripple is square corrugated or for zigzag ripple or for shaped form ripple.
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, it is corrugated plate shape in the bottom of the inner races of this circle quarter bend, it is possible to further promoting the intensity of this circle quarter bend, this corrugated plating can also promote frictional force when connecting between round quarter bend simultaneously.
4, 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 the cross section structure schematic diagram of this high intensity tongue and groove antinode circle quarter bend;
Fig. 2 is the perspective view of Fig. 1;
Fig. 3 is A-A section (rectangle antinode) structural representation of Fig. 1;
Fig. 4 is A-A section (the square dentation antinode) structural representation of Fig. 1;
Fig. 5 is A-A section (curve antinode) structural representation of Fig. 1;
Fig. 6 is that circle quarter bend is calculated and analyzes with reference to figure;
Fig. 7 is circle quarter bend equivalent stress calculating figure;
Fig. 8 is the mesh generation figure of antinode circle quarter bend;
Fig. 9 is the equivalent stress calculating figure of antinode circle quarter bend.
1b. circle quarter bend 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 antinode bottom surface of 3-3. inner races, 4. weld seam.
Detailed description of the invention
Embodiment one: referring to Fig. 1, Fig. 2 and Fig. 3, it is shown that high intensity tongue and groove antinode 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 and Fig. 2 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 antinode 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.
Fig. 3 is it can be seen that the antinode bottom surface 3-3 of inner races is clod wash rectangle corrugated plate shape. And the fluctuation direction of rectangle ripple is identical with the length direction of circle quarter bend.
High intensity tongue and groove antinode circle quarter bend production technology,
High intensity tongue and groove antinode circle quarter bend as shown in Figure 5, is encircled into round quarter bend by monoblock steel plate bending, 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.
And width identical with the notch 2 direction inner races 3 more than the bending and molding of notch 2 it is provided with 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 antinode 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.
The antinode bottom surface 3-3 of inner races is clod wash rectangle corrugated plate shape. And the fluctuation direction of rectangle ripple is identical with the length direction of circle quarter bend.
Its production technology comprises the steps;
A. after the steel plate after smooth, steel plate will roll four banding ripple area. As shown in Fig. 7, Fig. 8 or Fig. 9, the cross section of ripple is square corrugated or for zigzag ripple or for shaped form ripple.
B. square vertical projections is formed by after the sheet metal bending of the bottom width of above-mentioned inner races, ensure that in step a, banding ripple area is positioned at the upper surface of vertical projections, 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;
C. repeat step b tetra-times, form four vertical projections; Four banding ripple area in step a are laid respectively in the upper surface of four vertical projections,
D. the groove that the two sides bottom fold of square projection in stepb 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 d completes, vertical projections becomes the projection of T-shaped,
E. the both sides of each vertical projections in step c, are repeated once step d;
F. forming the projection of n T-shaped after step e 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. 4, embodiment two is essentially identical with embodiment one, and something in common does not repeat, and difference is the cross section of the ripple in embodiment two is zigzag ripple.
Embodiment three: referring to Fig. 5, embodiment three is essentially identical with embodiment one, and something in common does not repeat, and difference is the cross section of the ripple in embodiment three is shaped form ripple.
In order to increase more embodiment, two the relative circular arc sides that have in above-described embodiment one to three are provided with two notches caved in of bending and molding, it is possible to form more embodiment.
On the basis of embodiment one and three, adjust the position of its weld seam, the attachment weld that four circular arc sides such as the round quarter bend as described in being adjusted to have at least a side to be provided with steel plate in being, new embodiment can be formed.
On the basis of embodiment one and three, the fluctuation direction adjusting described ripple is vertical with the length direction of circle quarter bend, it is possible to 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:
About the property list without antinode circle quarter bend
Equivalent stress result of calculation is referring to Fig. 7.
Compared with justifying quarter bend with without antinode, having the antinode length of the round quarter bend of antinode to take 10mm, the degree of depth takes 5mm, and other conditions are constant, and as shown in Figure 8, equivalent stress result of calculation is as it is shown in figure 9, Fig. 9 takes stress diagram when moment of flexure is 1000Nmm to mesh generation figure.
Conclusion: according to contrasting known without antinode circle quarter bend with the round quarter bend finite element analysis having antinode, there is the round quarter bend of antinode with when ratio does not have antinode after adding corresponding antinode under size, equivalent stress maximum reduces about half, it is known that have antinode circle quarter bend to be enhanced about more than once than the anti-bending strength without antinode circle quarter bend; The result of calculation of shearing resistance and resistance to compression tension also significantly improves.It addition, the size of circle quarter bend antinode can also optimize further, reach according to the actual requirements the most reasonably to arrange in pairs or groups.
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.
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 (7)
1. a high intensity tongue and groove antinode 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;Notch includes the two sides being connected with adjacent circular arc side, described inner races includes above two sides linked together, a bottom surface and two are connected respectively with the two sides of notch, and the bottom surface of described internal slide is clod wash corrugated plate shape.
2. high intensity tongue and groove antinode according to claim 1 circle quarter bend, is characterized in that: the fluctuation direction of the ripple that the fluctuation direction of described ripple is identical or described with the length direction of circle quarter bend is vertical with the length direction of circle quarter bend.
3. high intensity tongue and groove antinode according to claim 1 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 antinode circle quarter bend according to any one of claim 1-3, is characterized in that: the cross section of described ripple is square corrugated or for zigzag ripple or for shaped form ripple.
5. the high intensity tongue and groove antinode 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.
6. the high intensity tongue and groove antinode 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.
7. the high intensity tongue and groove antinode 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 |
|---|---|---|---|
| CN201521037962.0U CN205299047U (en) | 2015-12-15 | 2015-12-15 | High strength tongue and groove antinode circle quarter bend |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037962.0U CN205299047U (en) | 2015-12-15 | 2015-12-15 | High strength tongue and groove antinode circle quarter bend |
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| CN205299047U true CN205299047U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521037962.0U Expired - Fee Related CN205299047U (en) | 2015-12-15 | 2015-12-15 | High strength tongue and groove antinode circle quarter bend |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402590A (en) * | 2015-12-15 | 2016-03-16 | 河南奥斯派克科技有限公司 | High-strength concave-convex groove wave loop round rectangular pipe |
| CN113530343A (en) * | 2020-01-13 | 2021-10-22 | 浙江晶日科技股份有限公司 | Multifunctional rod |
-
2015
- 2015-12-15 CN CN201521037962.0U patent/CN205299047U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402590A (en) * | 2015-12-15 | 2016-03-16 | 河南奥斯派克科技有限公司 | High-strength concave-convex groove wave loop round rectangular pipe |
| CN113530343A (en) * | 2020-01-13 | 2021-10-22 | 浙江晶日科技股份有限公司 | Multifunctional rod |
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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: 20160608 Termination date: 20201215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |