CN102140821B - High-tension steel grating - Google Patents
High-tension steel grating Download PDFInfo
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- CN102140821B CN102140821B CN201010116517.9A CN201010116517A CN102140821B CN 102140821 B CN102140821 B CN 102140821B CN 201010116517 A CN201010116517 A CN 201010116517A CN 102140821 B CN102140821 B CN 102140821B
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- section bar
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Abstract
The invention specifically provides a grating with industrial value, which is made of high-tension steel, wherein an end sectional material uses a high-tension steel plate as a raw material, a vertical part, a bearing part and a supporting part are formed through the plasticity processing of the high-tension steel plate, wherein the vertical part is connected with both ends of a bearing sectional material; the bearing part is connected together with the lower end of the vertical part and used for bearing the lower sides of the two ends; and the supporting part vertically extends from the upper end of the vertical part in the opposite direction of the bearing part in a form of a right angle The bearing part and the supporting part can be used for bearing a load applied to the bearing sectional material.
Description
[technical field]
The present invention relates to mechanical manufacturing field, relate in particular to a kind of lid for road lateral sulcus etc. or the cancellate grid on floor.
[background technology]
In prior art, for the structure of the grid of the lid of asphalt road lateral sulcus etc., be that the rectangle carrying section bar that comprises " I " shaped sections is arranged in parallel under upright state, by intersecting section bar, connect its upper end side, thereby form grille.By end section bar, connected respectively the both ends of carrying section bar, the rainwater on road or sandy soil fall in lateral sulcus by this grille.
Owing to often having people or vehicle by above grid, thus uneven in order to eliminate, for carrying section bar, intersect section bar to carry out upset butt welding from the upper surface of carrying section bar without the mode of outstanding state.
Therefore, when keeping the intensity of this grid, seek lightweight; And keep identical shaped in, improve intensity, as the raw material of grid, can adopt high tension steel.Relevant employing high tension steel had had record as grid raw material in patent documentation 1 (TOHKEMY 2002-356760 communique, the 0004th section, the 0006th section).
But, this patent documentation 1 is only with the raw-material embodiment of grid, and the enlightenment of giving high tension steel does not specifically demonstrate the characteristic of having utilized high tension steel, for example: under same intensity, can make plate thickness attenuation, thereby obtain the high-tension steel grating with industrial value.
Patent documentation 2: Japan is real No. 3033439 communiques (Fig. 1,2 end angle steel 2,2 ') of passing the imperial examinations
[summary of the invention]
Technical problem to be solved by this invention is, a kind of high tension steel that adopts is provided, and has the grid of industrial value.
In order to address the above problem, the invention provides a kind of high-tension steel grating of the lid for road lateral sulcus etc., described grid is included in the carrying section bar of the square-section being arranged in parallel under the state of setting, described intersection section bar from the upper surface of described carrying section bar without outstanding state, by upset butt welding, by intersecting the upper end side that section bar connects described carrying section bar, form grille, and by end section bar, connected the both ends of described carrying section bar.The present invention further increases and has in above-mentioned essential structure: end section bar be take high tension steel steel plate as raw material, by this high tension steel steel plate is carried out to plastic working, form to connect the vertical component effect of the two end portions of described carrying section bar, connect together with the end portion of described vertical component effect and bear this two end portions lower side receiving portion and from the upper part of described vertical component effect and described receiving portion rightabout with extended support portion, right angle, by described receiving portion and described support portion, can bear the load that imposes on described carrying section bar.
That is, generally this high-tension steel grating is called U font ditch grid, for grid embed wholly without the U font ditch that bears ditch, the upper end, both sides of grill body is provided with flanging, by this flanging role-taking, in the load of grid, is also known as the grid with flanging.
In the grid of the type of the present invention, by setting the end section bar that comprises flanging part for high tension steel, when keeping same intensity, realize thin-walled property.And, because thin-walled property can be manufactured the end section bar with flanging by the facile high-tensile steel of general appearance is carried out to plastic working, adopt small lot can meet immediately the specification requirement that comprises the grid that carries section bar
In addition, in the present invention, further bring into play the advantage of above-mentioned thin-walled property, in grid at this with flanging, increase the support portion above contact U font ditch, by plastic working and employing high-tensile steel, can one-body moldedly bear the receiving portion of the following side at the two ends of carrying section bar, compare with only adopting the end section bar (also referred to as " end angle steel ") of angle steel in prior art, can avoid better because load-carrying section bar comes off from end section bar.
Have again, the receiving portion of now bearing the lower portion of the two end portions of carrying section bar diminishes the aperture area of the grille of grid, because the mode small-sized that hope does not diminish with this aperture area as far as possible, so, in playing the scope of the effect of bearing this lower portion, require small-sized.But, by the high-tensile steel of thin-walled is carried out to plastic working, can meet this requirement.
In addition, in the object of high-tension steel grating of the present invention, be not limited to the above-mentioned grid with flanging, comprise the so-called grid without flanging (so-called " general lateral sulcus grid ").This grid without flanging is for being provided with the lateral sulcus of the receiving portion that embeds grid at road lateral sulcus, adopt lateral sulcus above and grid above consistent.
In the present invention, the grid of motion is characterised in that: at this without flanging grid in the situation that, as its raw material, adopt the place of high tension steel particularly to only limit to bear the carrying section bar of the load that imposes on grid, intersection section bar, end section bar in addition adopt original steel.
Grid according to this without flanging, have advantages of that carrying section bar adopts high tension steel, keep with original steel same intensity in, realized the raising of thin-walled property, aperture opening ratio.On the other hand, in the situation that being same size with original steel, do not change corresponding size or shape, when performance realizes this advantage of high strength, can eliminate the problem on deformation after the welding fabrication occurring all for high tension steel in the situation that, performance can meet by the high engineering manufacture of productivity ratio the effect of the product of product specification as far as possible.
Have again, in the present invention, for with flanging or without arbitrary situation of the grid of flanging, by setting carrying section bar for high tension steel, in the situation that realizing the irrealizable thin-walled property of original steel, in order to be suitable for carrying out the upset butt welding corresponding with the thickness of the book wall of original steel, propose to adopt than intersecting the intersection section bar of the large diameter of the suitable diameter of section bar.
In this way, discovery can make up thin-walled property by carrying section bar to when imposing on the strength deficiency of transverse direction load of grid integral body, can eliminate the reduction problem that problem on deformation after welding fabrication and plane keep intensity, performance can be manufactured the effect of the excellent product that meets product specification by the high engineering of productivity ratio as far as possible.
In the grid of the thick diameterization performance of this intersection section bar with flanging, in the situation that both of carrying section bar and end section bar can realize above-mentioned effect for high tension steel.Bring into play and making up when imposing on the strength deficiency of transverse direction load of grid integral body, disappear problem on deformation after welding fabrication and plane of the solution of can trying one's best keeps the reduction problem of intensity, can manufacture the effect of the excellent product that meets product specification by the high engineering of productivity ratio.
The various high-tension steel gratings of the invention described above motion, just from take high tension steel as the stage of the raw-material design of grid, high-tension steel grating is produced in actual trial-production, repeatedly make a strength test, the repeatedly failed result of service test produces, realized the grid that has adopted high tension steel with integral body, the grid with industrial value is provided particularly.
[accompanying drawing explanation]
Fig. 1 a and Fig. 1 b are for representing an embodiment of high-tension steel grating of the present invention, and wherein Fig. 1 a is its elevation (plan view), and Fig. 1 b is the AA sectional drawing of Fig. 1 a.
Fig. 2 a represents is the sectional drawing of major part of use state of the high-tension steel grating of Fig. 1 a and Fig. 1 b, and Fig. 2 b is the BB sectional drawing of Fig. 2 a.
Fig. 3 a to Fig. 3 c is for representing other embodiment of high-tension steel grating of the present invention, and wherein Fig. 3 a is used the stereoscopic figure of state for it, the sectional drawing that Fig. 3 b is its major part, and Fig. 3 c is the C direction of arrow view of Fig. 3 b.
Fig. 4 a to Fig. 4 e is for representing other embodiment of high-tension steel grating of the present invention, and Fig. 4 a is its elevation, and Fig. 4 b is its plan view, and Fig. 4 c is the DD sectional drawing of Fig. 4 b, and Fig. 4 d is its elevation that uses state, and Fig. 4 e is the side view of Fig. 4 d.
Description of reference numerals is as follows:
1,1A carrying section bar
2,2A intersection section bar
3,3A end section bar
3a vertical component effect
3b receiving portion
3c support portion
5,5A, 5B high-tension grid
The diameter of d intersection section bar
The plate thickness of tb carrying section bar
The plate thickness of te end section bar
U U font ditch
UA lateral sulcus
Above Ua U word ditch
Ub grid receiving portion
The circular lateral sulcus of V
Va opening
W grille
[specific embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
(embodiment 1)
Fig. 1, for representing an embodiment of high-tension steel grating of the present invention, (a) is its elevation (plan view), is (b) the AA sectional drawing of (a).Fig. 2 (a) is the sectional drawing of major part of use state of the high-tension steel grating of presentation graphs 1, (b) is the BB sectional drawing of (a).
As shown in Fig. 2 (a), this high-tension steel grating 5 is the so-called grid with flanging, the lid that is used for the U font ditch U of road, the carrying section bar 1 of square-section is arranged in parallel under the state of erectting, this intersect section bar 2 from the upper surface of carrying section bar 1 without outstanding state, by upset butt welding, by intersecting the upper end side that section bar 2 connects carrying section bars 1, form grille W, by end section bar 3, connect respectively the both ends of carrying section bar 1.
This high-tension steel grating 5, comprise outside above-mentioned essential structure, especially at end section bar 3, take high tension steel steel plate as raw material, by this high tension steel steel plate is carried out to plastic working, form to connect the vertical component effect 3a of the two end portions of carrying section bar 1, connect together with the end portion of vertical component effect 3a and bear this two end portions lower side receiving portion 3b and from the upper part of vertical component effect 3a and receiving portion 3b rightabout with the extended support portion 3c in right angle.
This receiving portion 3b and support portion 3c are as shown in Fig. 2 (a), and it is upper that support portion 3c is positioned over above the ditch of U font ditch U Ua, and receiving portion 3b bears the two end portions of carrying section bar 1, by both, can bear the load F that imposes on carrying section bar 1.
Like this, in this band flanging grid 5, when bearing the raw material of intersection section bar 3 of the load that imposes on carrying section bar 1 and be high tension steel steel plate, compare as the grid of end section bar with the original end of employing angle steel, patent documentation 2 (the real communique of passing the imperial examinations No. 3033439 of Japan for example, Fig. 1,2 end angle steel 2,2 '), brought into play following effect.
Effect 1: the steel plate as tolerance with even load, can adopt the more high-tensile steel of book, utilize this thick book degree, can be by plastic working moulding the end section bar 3 of the favourable Z-shaped shape (being formed by support portion 3a and receiving portion 3b) of the conduct band flanging grid as shown in Fig. 2 (a).
Consequently, in the situation that adopting original angle steel, because angle steel is generally extrusion modling, so only have in specification product from the market, suitably select, option is restricted.But in the situation that adopting plastic working moulding high-tensile steel, performance can easily be manufactured end section bar 3 as required, can adapt to the effect of the many variety production of small lot.
Effect 2: from Fig. 1 (a), Fig. 2 (a), because receiving portion 3b diminishes the aperture area of grille W, so the two end portions of bearing carrying section bar 1, in can bearing the scope of the load that imposes on carrying section bar 1, can be small size as far as possible.But, for example, plastic working (: crooked by panel beating) in the situation that, because restricted with respect to plate thickness end size, so, the thickness of plate is got over book, can shorten the length of the carrying section bar 1 of receiving portion 3b, can strengthen the aperture area of grille W.
Specifically, as end section bar 3 raw material, adopt in the present embodiment the high tension steel of plate thickness te=1.8mm, now, receiving portion 3b can be born to the length T at the two ends of carrying section bar 1 and set 10mm left and right for.In addition, present situation is that the plate thickness as the high tension steel steel plate that can access on open market comprises above-mentioned 2.3mm to 3.2mm, and the raw material that can be used as the end section bar of grid adopt.But, be not limited to this raw material.
Effect 3: the advantage of further bringing into play above-mentioned book wall, in this band flanging grid 5, increase the support portion 3c of Ua above the ditch that contacts U font U, by adopting high-tensile steel and plastic working, can one-body moldedly bear the receiving portion 3b of the following side at the two ends of carrying section bar, with originally only adopted the end section bar (also referred to as " end angle steel ") of angle steel to compare, can avoid better because load F carrying section bar 1 comes off from end section bar 3.
In addition, even if be set as the situation of the shape of this zigzag at end section bar, because the plastic working by steel plate can moulding, so, can easily manufacture and meet the specification of grid, the end section bar of the shape of carrying section bar can adapt to many kinds, small lot batch manufacture.
Effect 4: in this end section bar 3, by adopting tension stress steel steel plate, compare with original, the plate thickness te that exceeds the support portion 3c on road surface can be set for to book, to reduce the step difference on road surface, can bring into play and reduce automobile because step difference produces noise, prevent the effect that pedestrian easily falls down.
And then, this high-tension steel grating 5, especially take high tension steel as carrying the raw material of section bar 1, plate thickness tb of its carrying section bar 1 than adopt ordinary construction to use calendering steel time minimum plate thickness (being generally 3mm) be little (plate thickness tb=1.6mm), in order to be suitable for carrying out upset butt welding, the diameter d of intersection section bar 2 is set the diameter (from diameter d=4mm to 5mm) larger than suitable diameter (being generally 3mm) for.
In addition, in the present embodiment, the section bar 2 that intersects adopts and is hexagonal spiral section bar by the round steel of diameter 4mm is helically twisted.But the shape of spiral section bar is not limited to this, can be also quadrangle or other shapes.In addition, the diameter of indication refers to the diameter of helically twisted front round steel here.
Like this, if the raw material of carrying section bar 1 are high tension steel, generally when only considering to act on the longitudinal load F of carrying section bar 1, can thin-walled property.But, with respect to the intersect vertically lateral load (for example: on this grid 5, under the state of the tyre load of automobile, the power acting on when the direction of tire changes) of direction of this longitudinal load F, have this one side of strength decreased.
In addition, in the situation that intersection section bar is thinner, as the plane maintenance strength decreased of grid 5 integral body.By overstriking, intersect section bar 2, prevent the described strength decreased with respect to lateral load, and prevent that this plane from keeping the reduction of intensity, when carrying section bar for thin-walled, as product, can there is practicality, there is industrial value.
In addition, with respect to the plate thickness that carries section bar 1, when intersection section bar 2 is carried out to upset butt welding, thicker than suitable diameter in the situation that, compare with original method, resistance welding condition need to be set different conditions.But, be to determine through repetition test.
At this, the so-called high tension steel substantially high tension steel of JIS G3129, G3134, G3135 regulation can be suitable for.But, be not limited to this, comprise approximately 1.5 times of above intensity of the intensity with the calendering steel SS400 that original employing ordinary construction uses, be generally called the steel of high tension steel or high strength steel.Have again, comprise the steel of the intensity of 3-4 times of the intensity with SS400 that is called superelevation high tension steel in high tension steel, for example: tensile strength is the steel of 1500MPa left and right.
When the suitable welding condition that adopts repetition test result to draw is carried out upset butt welding, carrying section bar 1 with respect to plate thickness 1.6mm, even if adopt than in the situation of the intersection section bar 2 of conventionally thick 4.3mm diameter (round steel of helically twisted 4mm is the section bar in hexagon or tetragonal cross section), also can carry out good welding.
In addition, in the present embodiment, for example understand and be not only end section bar 3, carrying section bar 1 also be take high tension steel as raw-material situation.But, as seen from the above description, adopt high tension steel that the not interdependent bearing type material of end section bar 3 book wall this point raw material can be realized, the effect of its book wall is also to bring into play individually.
(embodiment 2)
Fig. 3, for representing other embodiment of high-tension steel grating of the present invention, (a), for its stereoscopic figure that uses state, (b) is the sectional drawing of its major part, is (c) the C direction of arrow view of (b).
In Fig. 3 (a), although this high-tension steel grating 5A represents the lid as road lateral sulcus UA, be arranged on grid receiving portion Ub.But, also can be for other clean room or the floor of multistorey parking space etc., or for the pedal of step.
Its formation is compared with the high-tension steel grating 5 shown in Fig. 1,2, difference is: end section bar 3A is supported by the grid receiving portion Ub of lateral sulcus UA, not bearing the load that imposes on carrying section bar 1, is raw-material plane section bar for take the ordinary construction steel of common square-section.
That is, this high-tension steel grating 5A, is characterized in that: in the grid without flanging, only carry section bar 1 and take high tension steel as raw material, other intersection section bar 2, end section bar 3A be take ordinary construction steel as raw material.In addition, in the present embodiment, the section bar 2 that intersects directly adopts and there is no helically twisted round steel.
In this way, after intersection section bar 2 and carrying section bar 1 are carried out to upset butt welding, connect the deflection producing in the process of end section bar 3A as product few, in addition, even if producing distortion also easily corrects, as adopting high tension steel, be raw-material high-tension steel grating 5A, can meet by the high engineering manufacture of productivity ratio the excellent product of product specification.
In addition, in this high-tension steel grating 5A, intersecting aspect the thickness of section bar 2 with respect to intersecting plate thickness maintenance and Fig. 1, the 2 identical thickness relations of section bar 2.In this respect can performance and Fig. 1, effect that 2 high-tension steel grating 5 is identical.
But, in the situation that can be to guarantee that its transverse strength or plane keep the mode of intensity to set the plate thickness of carrying section bar, the thickness of intersection section bar can be set as to original embodiment such, can just carry section bar and take high tension steel as raw material, now, be that above-mentioned carrying section bar be take high tension steel as raw material, other intersect section bars, the performance of end section bar take ordinary construction with steel the effect during as raw material.
(embodiment 3)
Fig. 4 is for representing other embodiment of high-tension steel grating of the present invention, (a) being its elevation, is (b) its plan view, is (c) the DD sectional drawing of (b), (d) for its elevation that uses state, (e) be the side view of (d).
As shown in Fig. 2 (d), (e), this high-tension steel grating 5B, is characterized in that: the lid as the opening VA of circular lateral sulcus V adopts with grid, and the carrying section bar 1A except two Outboard Sections 1B and the raw material of section bar 2A of intersecting are high tension steel.In addition, Reference numeral 3B is end section bar.
; compare with the high-tension grid 5 of Fig. 1; difference is: under longitudinal arrangement state for the elongated open WA of circular lateral sulcus W this on the one hand; and be not only carrying section bar 1A; and intersection section bar 2A is also the high tension steel of square-section; be provided with the ditch that intersection section bar 2A is embedded to carrying section bar 1A, this one side that both are welded to connect by usual way.
According to the high-tension steel grating 5A of above-mentioned formation, because be mainly that carrying section bar 1A and the intersection section bar 2A that bears the loading section that imposes on grid 5B be take high tension steel as raw material, so, corresponding to their thickness of its intensity, can become book (for example: be about 1/3rd), result is half left and right that overall weight can be reduced to original.
In addition, if set suitable plate thickness, do not change appearance and size, aperture opening ratio, can improve intensity.
The high-tension grid 5 of above-mentioned three embodiment, 5A, 5B have respectively the distinguishing characteristics shown in above-mentioned and corresponding action effect.But, just from take high tension steel as the stage of the raw-material design of grid, in fact high-tension steel grating is produced in trial-production, repeatedly make a strength test, the repeatedly failed result of service test produces, with integral body, adopted the grid of high tension steel, the grid with industrial value is provided particularly.
In addition, high-tension steel grating of the present invention, is not limited to above-mentioned embodiment (embodiment).In addition,, in the scope of recording in the claim of patent and the scope of embodiment (embodiment), can there be various variation, combination.
High strength steel grid of the present invention is as the grid that adopts high strength steel, at the industrial field that requires to provide particularly the grid with industrial value, and particularly can be for operculum colpi or the floor of clean room or multistorey parking space etc. or the pedal of step.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a high-tension steel grating, lid for road lateral sulcus, described grid is included in the carrying section bar of the square-section being arranged in parallel under the state of setting, intersect section bar from the upper surface of described carrying section bar without outstanding state, adopt upset butt welding to connect the upper end side of described carrying section bar and form grille by intersecting section bar, with by end section bar, be connected the both ends of described carrying section bar, it is characterized in that:
Described end section bar be take high tension steel steel plate as raw material, by this high tension steel steel plate is carried out to plastic working, form to connect the vertical component effect of the two end portions of described carrying section bar, connect together with the end portion of described vertical component effect and bear this two end portions lower side receiving portion and from the upper part of described vertical component effect and described receiving portion rightabout with extended support portion, right angle, support portion and receiving portion are formed in one, and by described receiving portion and described support portion, can bear the load that imposes on described carrying section bar.
2. high-tension steel grating according to claim 1, it is characterized in that: at carrying section bar raw material, be high tension steel, the plate thickness ratio employing ordinary construction of its carrying section bar is used in the situation that the minimum plate thickness while rolling steel is little, intersect section bar diameter between 4mm～5mm, to be suitable for carrying out upset butt welding, wherein minimum plate thickness is 3mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010116517.9A CN102140821B (en) | 2010-01-29 | 2010-01-29 | High-tension steel grating |
| HK11110441.1A HK1159201A1 (en) | 2010-01-29 | 2011-10-03 | High tensile steel grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010116517.9A CN102140821B (en) | 2010-01-29 | 2010-01-29 | High-tension steel grating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102140821A CN102140821A (en) | 2011-08-03 |
| CN102140821B true CN102140821B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010116517.9A Active CN102140821B (en) | 2010-01-29 | 2010-01-29 | High-tension steel grating |
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| Country | Link |
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| CN (1) | CN102140821B (en) |
| HK (1) | HK1159201A1 (en) |
Families Citing this family (1)
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|---|---|---|---|---|
| CN110615066B (en) * | 2019-10-10 | 2021-12-28 | 中船黄埔文冲船舶有限公司 | Ship and seabed door grating thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356760A (en) * | 2001-03-30 | 2002-12-13 | Nisshin Steel Co Ltd | Material for civil-engineering and member for civil- engineering having excellent corrosion resistance |
| JP2009057750A (en) * | 2007-08-31 | 2009-03-19 | Takara Kizai:Kk | High-tension steel grating |
| CN101631917A (en) * | 2006-10-30 | 2010-01-20 | 阿考塞弗林阿尔曼有限公司 | Grating |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129625Y2 (en) * | 1971-10-13 | 1976-07-26 | ||
| JP3279452B2 (en) * | 1995-03-15 | 2002-04-30 | 日本金属株式会社 | Structural member and method of manufacturing the same |
-
2010
- 2010-01-29 CN CN201010116517.9A patent/CN102140821B/en active Active
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- 2011-10-03 HK HK11110441.1A patent/HK1159201A1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356760A (en) * | 2001-03-30 | 2002-12-13 | Nisshin Steel Co Ltd | Material for civil-engineering and member for civil- engineering having excellent corrosion resistance |
| CN101631917A (en) * | 2006-10-30 | 2010-01-20 | 阿考塞弗林阿尔曼有限公司 | Grating |
| JP2009057750A (en) * | 2007-08-31 | 2009-03-19 | Takara Kizai:Kk | High-tension steel grating |
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| HK1159201A1 (en) | 2012-07-27 |
| CN102140821A (en) | 2011-08-03 |
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