CN103362071B - Hoop for finished steel strand - Google Patents
Hoop for finished steel strand Download PDFInfo
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- CN103362071B CN103362071B CN201310339229.3A CN201310339229A CN103362071B CN 103362071 B CN103362071 B CN 103362071B CN 201310339229 A CN201310339229 A CN 201310339229A CN 103362071 B CN103362071 B CN 103362071B
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- hoop
- steel strand
- finished steel
- finished
- strand bundle
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- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a hoop for a finished steel strand. The hoop is a hollow cylindrical sleeve. The end portion of the finished steel strand is sleeved with the hoop, and the finished steel strand is formed by a plurality of steel strand bodies in a combing mode. After special squeezing equipment squeezes the hoop, an axial process indentation is formed on the outer circle of the hoop. The hoop has the advantages that by adopting axial squeezing, the squeezing direction is consistent to the length direction of the hoop and the length direction of the finished steel strand, axial squeezing enables the inner wall of the hoop to be embedded in gaps between single steel strand bodies on the outer layer of the finished steel strand, and the inner wall of the hoop wraps the outer edges of the single steel strand bodies, in contact with the inner wall, of the outer layer. The contact faces of the inner wall of the hoop and the outer edges of the single steel strand bodies are arc-shaped faces. The larger the contact faces are, the higher the combining strength between the finished steel strand and the hoop is. The hoop and the finished steel strand can be firmly combined. The special squeezing equipment and tools are simple in structure, low in manufacturing cost, and good in hoping effect.
Description
Technical field
What the present invention relates to is the parts of fastening finished product steel wire bundle in building operations, particularly be a kind of hoop of finished steel strand bundle.
Background technology
To in building, road and bridge building operations, need to make into many prestress wires comb volumes in order finished steel strand bundle, then penetrate in the prestressed pore passage bellows that prepared.When finished steel strand bundle (also known as " comb compile bundle ") is worn and sent in corrugated conduit, need to arrange in finished steel strand bundle front end a special tractor and draw, many steel strand can be significantly improved like this and wear the efficiency sent.
Fig. 1 is prior art hoop radial compression banding finished steel strand bundle structural representation; Fig. 2 is the left view of Fig. 1.
As shown in Figure 1 and Figure 2, in the prior art, for making the finished steel strand bundle 1 made in order by multiple single steel strand 1a comb volume under tractor is dilatory, wear smoothly to send and pass through bellows, first need by finished steel strand bundle 1 one end binding banding together, then tractor is connected to finished steel strand bundle 1 one end after binding banding.In prior art, usual use hoop 2 bundlees banding one end in finished steel strand bundle 1, the structure of this hoop 2 is hollow cylinder-shaped sleeve, the internal diameter of hoop 2 is equipped to be enclosed within finished steel strand bundle 1, radial compression is carried out around hoop 2 excircle with dedicated extruded equipment, the each single steel strand 1a be enclosed within hoop is made to be close on the inwall of hoop, hoop 2 external surface after extruding leaves radial technique impression 2a, radial technique impression 2a is circular, hoop 2 banding is in finished steel strand bundle 1 one end and be combined into one with finished steel strand bundle 1, draw finished steel strand bundle 1 to tractor to wear to send and provided convenience by bellows.
There is following defect in above-mentioned prior art: 1) dedicated extruded equipment is to after hoop 2 excircle radial compression, being fastened at hoop 2 inwall formation annulus impression is positioned on the outer field single steel strand 1a of finished steel strand bundle 1, the radial technique impression gap 3 formed between outer field single steel strand 1a is larger, be linear contact lay between outer field single steel strand 1a and hoop 2 inwall, contact surface is little, and the adhesion between hoop 2 and finished steel strand bundle 1 is little; 2), after hoop adopts radial compression, if when extruding force needs lifting to reach larger pressure, then the distortion of hoop 2 is also larger, can reduce the life-span of hoop 2 like this.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide that one can firmly banding be in finished steel strand bundle end fast, large with finished steel strand bundle adhesion, the hoop of a kind of finished steel strand bundle that the life-span is long.
The technical scheme solved the problems of the technologies described above is: a kind of hoop of finished steel strand bundle, and described hoop is a hollow cylinder-shaped sleeve; Described hoop is equipped with to be enclosed within combs the end of compiling the finished steel strand bundle made in order by multiple single steel strand; After dedicated extruded equipment extruding hoop, the cylindrical of hoop forms axial technique impression; Axial technique impression on described hoop cylindrical axially forms strip indentation along hoop, and the shape of this strip indentation is similar to being positioned at the outer field multiple single steel strand outer margin contour of finished steel strand bundle in hoop; Described axial technique impression embeds gap between the outer single steel strand of finished steel strand bundle at the inwall that the shape of hoop inwall is: hoop and wraps up the described outer single steel strand outer rim that its inwall contacts.
Preferred version is: the structure of described hoop is as follows: its wall thickness is: 3 ~ 20mm; Its length: 40 ~ 240mm; Its internal diameter is combed according to multiple single steel strand the finished steel strand bundle weaved into and is determined; Its external diameter is less than the construction duct internal diameter jointly worn with finished steel strand bundle and send.
The invention has the beneficial effects as follows: the present invention overcomes the shortcoming of prior art, advantage of the present invention is as follows:
1) hoop of the present invention adopts axial compression, the direction of extrusion is consistent with hoop and finished steel strand bundle length direction, axial compression makes the inwall of hoop to embed between finished steel strand bundle outer field single steel strand in gap, and the inwall of hoop has wrapped up the single steel strand outer rim that its inwall contacts, hoop inwall contacts as cambered surface with outer single steel strand outer rim, contact area is large, under same equal pressure, between finished steel strand bundle and hoop, bond strength is high, and hoop and finished steel strand bundle can firmly combine.
2) the dedicated extruded equipment and the tool construction that hoop are fixed on finished steel strand bundle end are simple, and cost is low, and gripping effect is good, and hoop and finished steel strand bundle can firmly be integrated.
Accompanying drawing explanation
Fig. 1 is prior art hoop radial compression banding finished steel strand bundle structural representation;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is hoop axial compression banding finished steel strand bundle structural representation of the present invention;
Fig. 4 is the left view of Fig. 3.
" in accompanying drawing, sequence number illustrates "
1: finished steel strand bundle; 1a: single steel strand; 2: hoop; 2a: radial technique impression; 2b: axial technique impression; 3: radial technique impression gap; 4: axial technique impression gap.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
First it should be noted that, the present invention and prior art use identical parts, adopt identical sequence number.
Fig. 3 is hoop axial compression banding finished steel strand bundle structural representation of the present invention; Fig. 4 is the left view of Fig. 3.
As shown in Figure 3, Figure 4, the invention provides a kind of hoop of finished steel strand bundle, described hoop 2 is hollow cylinder-shaped sleeve; Equipped being enclosed within of described hoop 2 combs the end of compiling the finished steel strand bundle 1 made in order by multiple single steel strand 1a; After dedicated extruded equipment extruding hoop 2, the cylindrical of hoop 2 forms axial technique impression 2b.
The structure of described hoop 2 is as follows: its wall thickness is: 3 ~ 20mm; Its length: 40 ~ 240mm; Its internal diameter is combed according to multiple single steel strand 1a the finished steel strand bundle 1 weaved into and is determined; Its external diameter is less than the construction duct internal diameter jointly worn with finished steel strand bundle 1 and send.
Axial technique impression 2b on described hoop 2 cylindrical axially forms strip indentation along hoop 2, and the shape of this strip indentation is similar to being positioned at the outer field multiple single steel strand 1a outer margin contour of finished steel strand bundle 1 in hoop 2; Described axial technique impression 2b embeds gap between finished steel strand bundle 1 outer single steel strand 1a at the inwall that the shape of hoop 2 inwall is: hoop 2 and wraps up the described outer single steel strand 1a outer rim that its inwall contacts.
In particular, the hoop of a kind of finished steel strand bundle 1 provided by the invention, described hoop 2 is hollow cylinder-shaped sleeve, the size of the internal diameter of hoop 2, determine according to the radical of single steel strand 1a in equipped finished steel strand bundle 1, the internal diameter of hoop 2 generally changes within the scope of 30 ~ 200mm; Hoop 2 excircle configuration size is less than construction duct inside diameter of bel, is convenient to follow-up traction finished product steel wire bundle 1 and can wears smoothly and send bellows duct.
As shown in Figure 3, Figure 4, hoop 2 is under axially dedicated extruded equipment extrudes, the axial technique impression 2b that hoop 2 external diameter is left over is along hoop 2 axially (being also that finished steel strand bundle 1 is axial) formation strip indentation, described strip indentation shows the outer margin contour shape being positioned at the outer field multiple single steel strand 1a of finished steel strand bundle 1, and this outer margin contour shape is also the shape that hoop 2 is wrapped on the outer margin contour of multiple single steel strand 1a.The present invention adopts axial compression hoop 2, the outer field multiple single steel strand 1a of hoop 2 inwall and finished steel strand bundle 1 is made to be that cambered surface contacts, contact area is large, and between finished steel strand bundle 1 and hoop, bond strength is high, and hoop and finished steel strand bundle can firmly combine.
Be described to work progress of the present invention below:
First, multiple single steel strand 1a is combed the finished steel strand bundle 1 compiled and make in order, need one end that drawing head is set to be inserted in hoop 2 in finished steel strand bundle 1, as shown in Figure 3;
Secondly, after hoop 2 is inserted in finished steel strand bundle 1 one end, the end face of hoop 2 exceedes the end face of finished steel strand bundle 1, even if the right side distance steel strand bundle end of hoop 2 leaves certain distance;
Finally, axially pressure is applied at the cylindrical of hoop 2 with axial compression equipment, make the inwall of hoop 2 be close on skin multiple single steel strand 1a outer margin contour of finished steel strand bundle 1, after extruding, on hoop 2 external surface length direction, leave the similar impression of single steel strand 1a outer margin contour multiple to skin.
Be described in detail one embodiment of the present of invention above, described content is only preferred embodiment of the present invention, can not be considered to of the present inventionly practice scope for limiting.All equalizations done according to the present invention change or improve, and do not have substantial novelty to change, all should belong in covering scope of the present invention.
Claims (2)
1. a hoop for finished steel strand bundle, is characterized in that, described hoop (2) is a hollow cylinder-shaped sleeve; Equipped being enclosed within of described hoop (2) combs the end of compiling the finished steel strand bundle (1) made in order by multiple single steel strand (1a); After dedicated extruded equipment extruding hoop (2), the cylindrical of hoop (2) forms axial technique impression (2b);
Axial technique impression (2b) on described hoop (2) cylindrical axially forms strip indentation along hoop (2), and the shape of this strip indentation is similar to being positioned at finished steel strand bundle (1) outer field multiple single steel strand (1a) outer margin contour in hoop (2); Described axial technique impression (2b) embeds at the inwall that the shape of hoop (2) inwall is: hoop (2) and is positioned at gap between finished steel strand bundle (1) outer single steel strand (1a) and wraps up described outer single steel strand (1a) outer rim that its inwall contacts.
2. according to the hoop of a kind of finished steel strand bundle described in claim 1, it is characterized in that, the structure of described hoop (2) is as follows: its wall thickness is: 3 ~ 20mm; Its length: 40 ~ 240mm; Its internal diameter is combed according to multiple single steel strand (1a) the finished steel strand bundle (1) weaved into and is determined; Its external diameter is less than the construction duct internal diameter jointly worn with finished steel strand bundle (1) and send.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310339229.3A CN103362071B (en) | 2013-08-06 | 2013-08-06 | Hoop for finished steel strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310339229.3A CN103362071B (en) | 2013-08-06 | 2013-08-06 | Hoop for finished steel strand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362071A CN103362071A (en) | 2013-10-23 |
| CN103362071B true CN103362071B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310339229.3A Active CN103362071B (en) | 2013-08-06 | 2013-08-06 | Hoop for finished steel strand |
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| CN (1) | CN103362071B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196117A (en) * | 1997-01-09 | 1998-07-28 | Mecs:Kk | Cable terminal metal fitting |
| CN2351230Y (en) * | 1998-01-15 | 1999-12-01 | 中外合资柳州欧维姆建筑机械有限公司 | Steel twisted wire puncher |
| CN101289890A (en) * | 2008-05-27 | 2008-10-22 | 东南大学 | Steel stranded line rapid traction joint |
| CN201212209Y (en) * | 2008-06-18 | 2009-03-25 | 中国葛洲坝集团股份有限公司 | Pull-type self locking reeve guide cap |
| CN101660354A (en) * | 2009-09-11 | 2010-03-03 | 中铁大桥局集团第五工程有限公司 | Prestress steel strand penetrating device |
| CN202248933U (en) * | 2011-10-12 | 2012-05-30 | 上海耐斯特液压设备有限公司 | Steel strands bundle threading device |
| CN203487459U (en) * | 2013-08-06 | 2014-03-19 | 天津鑫坤泰预应力专业技术有限公司 | Confining ring for finished steel strand |
-
2013
- 2013-08-06 CN CN201310339229.3A patent/CN103362071B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196117A (en) * | 1997-01-09 | 1998-07-28 | Mecs:Kk | Cable terminal metal fitting |
| CN2351230Y (en) * | 1998-01-15 | 1999-12-01 | 中外合资柳州欧维姆建筑机械有限公司 | Steel twisted wire puncher |
| CN101289890A (en) * | 2008-05-27 | 2008-10-22 | 东南大学 | Steel stranded line rapid traction joint |
| CN201212209Y (en) * | 2008-06-18 | 2009-03-25 | 中国葛洲坝集团股份有限公司 | Pull-type self locking reeve guide cap |
| CN101660354A (en) * | 2009-09-11 | 2010-03-03 | 中铁大桥局集团第五工程有限公司 | Prestress steel strand penetrating device |
| CN202248933U (en) * | 2011-10-12 | 2012-05-30 | 上海耐斯特液压设备有限公司 | Steel strands bundle threading device |
| CN203487459U (en) * | 2013-08-06 | 2014-03-19 | 天津鑫坤泰预应力专业技术有限公司 | Confining ring for finished steel strand |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103362071A (en) | 2013-10-23 |
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Denomination of invention: Hoop for finished steel strand Effective date of registration: 20160324 Granted publication date: 20150708 Pledgee: Bank of Tianjin, Limited by Share Ltd, Beichen branch Pledgor: Tianjin Shinkuntai Advanced Prestressing Technology Co., Ltd. Registration number: 2016120000008 |
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Effective date of registration: 20180529 Granted publication date: 20150708 |
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