CN101764290B - Connecting tube used for large-section conducting wire - Google Patents
Connecting tube used for large-section conducting wire Download PDFInfo
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- CN101764290B CN101764290B CN2009102434023A CN200910243402A CN101764290B CN 101764290 B CN101764290 B CN 101764290B CN 2009102434023 A CN2009102434023 A CN 2009102434023A CN 200910243402 A CN200910243402 A CN 200910243402A CN 101764290 B CN101764290 B CN 101764290B
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- pipe
- aluminum
- steel
- tube
- splicing sleeve
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- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 173
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 170
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 120
- 239000010959 steel Substances 0.000 claims abstract description 120
- 239000004411 aluminium Substances 0.000 claims abstract description 62
- 238000002788 crimping Methods 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000001398 aluminium Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Cable Accessories (AREA)
Abstract
The invention provides a hydraulic connecting tube, comprising a connecting tube aluminum tube, a connecting tube steel tube and an aluminum liner tube, wherein, the connecting tube aluminum tube 7 is an extrusion aluminum tube, and the end is provided with a bevel; the end of the connecting tube steel tube is provided with an inverted circular angle; the connecting tube steel tube is used for inserting steel cores of two large-section conducting wires into the tube, leads the two steel cores to be lapped with each other, and compresses the two steel cores, the aluminum liner tube replaces a certain length of an adjacent-outer-layer of aluminum wire and an outer layer of aluminum wire of the two large-section conducting wires, and the connecting tube aluminium tube is compressed on the outer layer of aluminum wire and the aluminum liner tube. The connecting tube provided by the invention removes a certain length of the adjacent-outer-layer of aluminum wire and the outer layer of aluminum wire, and uses the aluminum tube with the same internal diameter and the external diameter to replace and fill the wire; when the aluminum tube is connected, the connecting tube aluminum tube is compressed to the filling aluminum tube and the outer layer of aluminum wire, the compression is ensured safe and reliable, meanwhile, the efficiency and stability of the conducting wire holding for the connecting tube are ensured.
Description
Technical field
The present invention relates to a kind of connecting tube used for large-section conducting wire, belong to the connection gold utensil field that aerial power transmission line connects lead two terminals.
Background technology
Lead splicing sleeve is used for two terminals of overhead transmission line conductor, except bearing the whole pulling force of lead, also as the electric conductor conduction current, is the important gold utensil in the transmission line.Lead is one of topmost element of transmission line, because the existence of conductor resistance, electric energy can produce certain loss in transmission course; This a part of electric energy loss often is left in the basket, and in fact, this a part of wear and tear expense is considerable; Therefore; Suitably increase conductor cross-section, very necessary with the line loss that reduces transmission line effectively, this also is the energy-saving and cost-reducing key point of power transmission engineering.Along with variation has also taken place in the increase conductor structure of conductor cross-section, the number of plies of outer aluminum steel from two-layer, three layers occurred four layers till now.Show the structure chart signal of a kind of typical four layers of aluminum steel steel reinforced aluminium conductor (72/7 structure) like Fig. 1; This aluminium stranded conductor comprises steel core 1, in steel core outside has, outwards is coated with successively, internal layer aluminum steel 3, adjacent outer aluminum steel 4, adjacent outer aluminum steel 5 and outer aluminum steel 6.Show a kind of splicing sleeve that is used for conventional wires (promptly outer aluminum steel layer has only layer 2-3) like Fig. 2, it has only splicing sleeve aluminum pipe 7 and 8, two leads of splicing sleeve steel pipe to be stretched into by the two ends of splicing sleeve aluminum pipe respectively and its head overlaps the back each other and compressed by splicing sleeve steel pipe 8.Because the lead appearance at home of four layers of aluminum steel, therefore traditional splicing sleeve no longer can satisfy the requirement of concerned countries standard.Therefore, the exigence technical staff develops a splicing sleeve that is applicable to large-section lead.
Summary of the invention
In order to overcome the defective of prior art, the object of the present invention is to provide the safe and reliable connecting tube used for large-section conducting wire of a kind of assurance crimping.
For this reason, the present invention proposes a kind of connecting tube used for large-section conducting wire, its effect is that two leads are engaged; Transmit mechanics and electrical load; It is characterized in that comprising splicing sleeve aluminum pipe, splicing sleeve steel pipe and aluminium bushing pipe, the splicing sleeve aluminum pipe is an extruded aluminum tube, and there is groove its end; The end rounding of said splicing sleeve steel pipe;
Said splicing sleeve steel pipe is used for the steel core insertion tube with two large-section leads; And make two steel cores be the overlap joint shape; Then it is carried out crimping; Said aluminium bushing pipe replaces the adjacent outer aluminum steel and the outer aluminum steel of a part of length of two large-section leads, and the splicing sleeve aluminum pipe is crimped on outer aluminum steel and the aluminium bushing pipe.
Wherein, the scope that said a part of length is is the diameter length of 3-4 times of large-section lead, and the thickness of said aluminium bushing pipe equals the thickness of adjacent outer aluminum steel and outer aluminum steel.
Wherein, said aluminium bushing pipe is integrally formed pipe or two pipes that the semicircle pipe is spliced.
Wherein, said aluminium bushing pipe is two, is enclosed within respectively on two large-section leads that continue, and the length of every aluminium bushing pipe is the length of 3-4 times of lead overall diameter.
Wherein, said aluminium bushing pipe is one, and two large-section leads that continue are entangled together, and the length of said aluminium bushing pipe is the length that the length of 3-4 times of lead overall diameter adds the splicing sleeve steel pipe.
Wherein, the outer surface of said aluminium bushing pipe be processed with some roads groove with guarantee after the crimping the aluminium bushing pipe can with good the holding of splicing sleeve aluminum pipe.
Wherein, described groove be along traverse shaft to direction extend, or perpendicular to traverse shaft to direction extend.
Wherein, said groove is that width is the groove of 3mm for the 8mm degree of depth.
Wherein, the cross sectional shape of said groove is square or arc.
Wherein, the thickness range of said aluminum pipe generally is 7-15mm, and the thickness range of steel pipe generally is 6-10mm.
The invention has the beneficial effects as follows: adopt ripe fluid pressure type to continue, compression joint technique is ripe, and crimp quality is protected easily.Substitute the skin and the adjacent outer aluminum steel of certain-length with inside/outside diameter size and the outer aluminium bushing pipe identical with adjacent outer aluminum steel, guarantee splicing sleeve to lead grip effectively, stablize.
Description of drawings
In order to make content of the present invention by clearer understanding, and be convenient to the description of embodiment, it is following to provide the description of drawings relevant with the present invention below:
Fig. 1 is a kind of typical four layers of aluminum steel steel reinforced aluminium conductor (72/7 structure) structural representations;
Fig. 2 is that traditional lead is with the structural representation before the splicing sleeve crimping;
Fig. 3 is the overall structure sketch map (before the crimping) that connecting tube used for large-section conducting wire of the present invention adopts two aluminium bushing pipes;
Fig. 4 is the overall structure sketch map (before the crimping) that connecting tube used for large-section conducting wire of the present invention adopts an aluminium bushing pipe;
Fig. 5 is the structural representation of aluminum pipe 7;
Fig. 6 is the structural representation of steel pipe 8;
Fig. 7 is the structural representation (being that the aluminium bushing pipe is the pipe of global formation) of aluminium bushing pipe 9, and wherein Fig. 7 a is the front view of aluminium bushing pipe, and Fig. 7 b is the end view of aluminium bushing pipe;
Fig. 8 is another structural representation (being the pipe of aluminium bushing pipe for being spliced by two semicircle pipes) of aluminium bushing pipe 9, and wherein Fig. 8 a is the front view of aluminium bushing pipe, and Fig. 8 b is the end view of aluminium bushing pipe;
Fig. 9 is the overall structure sketch map after the connecting tube used for large-section conducting wire crimping according to the invention;
Figure 10 is the A-A cutaway view of Fig. 9;
Wherein, 1-large-section lead, 2-steel core, 3-internal layer aluminum steel, the adjacent internal layer aluminum steel of 4-, the adjacent outer aluminum steel of 5-, the outer aluminum steel of 6-, 7-aluminum pipe, 8-steel pipe, 9-aluminium bushing pipe, 10-groove.
Embodiment
Below in conjunction with accompanying drawing the technical scheme of connecting tube used for large-section conducting wire of the present invention is done further detailed explanation.
As shown in Figure 1, four layers of aluminum steel steel reinforced aluminium conductor promptly are a kind of large-section leads, and this large-section lead 1 comprises steel core 2, outwards are coated with internal layer aluminum steel 3, adjacent internal layer aluminum steel 4, adjacent outer aluminum steel 5 and outer aluminum steel 6 in steel core 2 outsides have successively.
As shown in Figure 3; This routine described connecting tube used for large-section conducting wire, its effect are that two large-section leads 1 are engaged, and transmit mechanics and electrical load; This splicing sleeve comprises aluminum pipe 7, steel pipe 8 and two aluminium bushing pipes 9; The steel core 2 of two large-section leads 1 extend into steel pipe 8 wherein by the two ends of steel pipe 8 respectively, and steel pipe 8 is opposite to and wherein is the two sections steel cores 2 that overlap shape and carries out crimping, and two aluminium bushing pipes 9 are socketed on respectively on the adjacent internal layer aluminum steel 4 of two leads 1; Be used for substituting the adjacent outer aluminum steel 5 and the outer aluminum steel 6 of two lead 1 certain-lengths, aluminum pipe 7 is crimped on aluminium bushing pipe 9 and the outer layer conductor 6.Said certain-length is the length of an aluminium bushing pipe 9.
As shown in Figure 5, aluminum pipe 7 is the circular aluminum pipe of extruding, and the outer surface that its termination goes out is ramped shaped; The thickness of aluminum pipe 7 is traditionally arranged to be 7-15mm.
As shown in Figure 6, steel pipe 8 is a round steel pipe, and its end is the rounding horn shape; Steel pipe 8 is used for steel core 2 insertion tubes with two supporting expanded diameter conductors 1, and makes two steel cores 2 be the overlap joint shape, then it is carried out crimping; The thickness of steel pipe 8 is traditionally arranged to be 6-10mm.
As shown in Figure 7, aluminium bushing pipe 9 is pipes of global formation, and it is used for replacing the adjacent outer aluminum steel 5 and outer aluminum steel 6 of two large-section lead 1 certain-lengths, and the certain-length in this example is the length of aluminium bushing pipe.The thickness of aluminium bushing pipe 9 equals adjacent outer aluminum steel 5 and the thickness sum of outer aluminum steel 6 and 3-4 times that its length is preferably lead 1 external diameter.Evenly be provided with groove 10 on the outer surface of aluminium bushing pipe 9, groove is ringwise and perpendicular to the axial direction setting of lead 1, groove also can along traverse shaft to direction extend and be provided with, the cross sectional shape of groove also can be arranged to square or arc; Groove 10 is that the 8mm and the degree of depth are that 3mm is good with its width.Aluminium bushing pipe 9 also can adopt the pipe that is spliced by two semicircle pipes as shown in Figure 8.
Like Fig. 9, shown in Figure 10; Splicing sleeve of the present invention is before the crimping large-section lead connects; At first divest outer aluminum steel 6, adjacent outer aluminum steel 5, adjacent internal layer aluminum steel 4 and the internal layer aluminum steel 3 of 1 last minute length of large-section lead; The steel core 2 that exposes lead 1 center, adjacent outer aluminum steel 5 and outer aluminum steel 6 backs that will divest certain-length again replace with aluminium bushing pipe 9, with the head of two large-section leads 1 overlap carry out crimping with steel pipe 8 after; One end of a lead 1 of traction makes each parts that connects according to said structure place aluminum pipe 7; Just through the hydraulic test (not shown) aluminum pipe 7 is compressed, aluminum pipe 7 is crimped on outer aluminum steel 6 and the aluminium bushing pipe 9, promptly accomplish the process that splicing sleeve of the present invention continues to two large-section leads 1.
The described fluid pressure type splicing sleeve that is applicable to large-section lead of this example; Outer aluminum steel 6 and adjacent outer aluminum steel 5 through the excision certain-length; Use with outer aluminum steel 5 uniform internal diameters of neighbour and with the aluminium bushing pipe 9 of external diameters such as outer aluminum steel and substitute; At last aluminum pipe 7 is crimped onto on aluminium bushing pipe 9 and the outer aluminum steel 6, guarantees the safe, reliable of crimping.
Pass the steel core 2 of large-section lead in the centre of steel pipe 8, steel pipe 8 carries out guaranteeing that the stable of steel core grips after the crimping to its steel core.Adjacent internal layer 4 outsides of lead 1 of having excised outer aluminum steel 6 and the adjacent outer aluminum steel 5 of certain-length are socketed with aluminium bushing pipe 9; Lead 1 outside that aluminum pipe 7 is crimped on aluminium bushing pipe 9 and is not excised aluminum steel 5,6; The steel pipe 8 of crimping and the aluminum pipe 7 common tension force that transmit, the aluminum pipe 7 of crimping transmits electrical load.
During crimping, aluminum pipe 7 from circle become with former aluminum pipe cylindrical in the regular hexagon that connects, the area that is compressed be about aluminum pipe 7 external diameters institute envelope long-pending 83%.The material volume of steel and aluminium can not change in hydraulic operation, and aluminum pipe and lead deform, and the gap between gap, lead aluminium single line and the steel wire between the gap between aluminum pipe and the lead, the lead aluminium single line will disappear or reduce.The steel reinforced aluminium conductor of four layers of aluminum steel structure is because the aluminum steel number of plies is more, the gap is bigger; If directly crimping; The deflection that is delivered to internal layer aluminum steel 3 and adjacent internal layer aluminum steel 4 after the crimping is less, and each layer aluminum steel can not be evenly stressed when lead 1 receives pulling force, makes grip can not reach the concerned countries standard.After adopting the outer aluminum steel 6 and adjacent outer aluminum steel 5 of excision certain-length of the present invention,, just can solve the not enough problem of four layers of aluminum steel grip preferably with aluminium bushing pipe 9 substituted structures.
The structure of this routine said splicing sleeve and connected mode have different being only basically with embodiment 1:
This splicing sleeve comprises aluminum pipe 7, steel pipe 8 and an aluminium bushing pipe 9; Aluminium bushing pipe 9 is socketed on the adjacent outer aluminum steel 4 of two leads and the steel pipe 8 that is used for two lead steel cores of crimping simultaneously, the length of said aluminium bushing pipe 9 be wire diameter 3-4 doubly with the length sum of steel pipe 8.
Invention has been described according to specific exemplary embodiment here.It will be conspicuous under not departing from the scope of the present invention, carrying out suitable replacement to one skilled in the art or revise.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.
Claims (9)
1. connecting tube used for large-section conducting wire; Its effect is that two leads are engaged, and transmits mechanics and electrical load, it is characterized in that comprising splicing sleeve aluminum pipe (7), splicing sleeve steel pipe (8) and aluminium bushing pipe (9); Splicing sleeve aluminum pipe (7) is an extruded aluminum tube, and there is groove its end; The end rounding of said splicing sleeve steel pipe (8); Said splicing sleeve steel pipe (8) is used for steel core (2) insertion tube with two large-section leads; And make two steel cores (2) be the overlap joint shape; Then it is carried out crimping; Said aluminium bushing pipe (9) replaces the adjacent outer aluminum steel (5) and the outer aluminum steel (6) of a part of length of two large-section leads, and splicing sleeve aluminum pipe (7) is crimped on outer aluminum steel (6) and the aluminium bushing pipe (9); The scope of said a part of length is the diameter length of 3-4 times of large-section lead, and the thickness of said aluminium bushing pipe (9) equals the thickness sum of adjacent outer aluminum steel (5) and outer aluminum steel (6).
2. splicing sleeve as claimed in claim 1 is characterized in that said aluminium bushing pipe (9) is integrally formed pipe or two pipes that the semicircle pipe is spliced.
3. splicing sleeve as claimed in claim 2 is characterized in that said aluminium bushing pipe (9) is two, is enclosed within respectively on two large-section leads that continue, and the length of every aluminium bushing pipe (9) is the length of 3-4 times of lead overall diameter.
4. splicing sleeve as claimed in claim 2 is characterized in that said aluminium bushing pipe (9) is one, and two large-section leads that continue are entangled together, and the length of said aluminium bushing pipe (9) is the length that the length of 3-4 times of lead overall diameter adds splicing sleeve steel pipe (8).
5. splicing sleeve as claimed in claim 4, the outer surface that it is characterized in that said aluminium bushing pipe (9) be processed with some roads groove with guarantee after the crimping the aluminium bushing pipe can with good the holding of splicing sleeve aluminum pipe (7).
6. splicing sleeve as claimed in claim 5, it is characterized in that described groove be along traverse shaft to direction extend, or perpendicular to traverse shaft to direction extend.
7. splicing sleeve as claimed in claim 6 is characterized in that said groove is that width is the groove of 3mm for the 8mm degree of depth.
8. splicing sleeve as claimed in claim 7, the cross sectional shape that it is characterized in that said groove is square or arc.
9. like the arbitrary described splicing sleeve of claim 1-8, the thickness range that it is characterized in that said aluminum pipe is 7-15mm, and the thickness range of steel pipe is 6-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102434023A CN101764290B (en) | 2009-12-21 | 2009-12-21 | Connecting tube used for large-section conducting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102434023A CN101764290B (en) | 2009-12-21 | 2009-12-21 | Connecting tube used for large-section conducting wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101764290A CN101764290A (en) | 2010-06-30 |
| CN101764290B true CN101764290B (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102434023A Active CN101764290B (en) | 2009-12-21 | 2009-12-21 | Connecting tube used for large-section conducting wire |
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| Country | Link |
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| CN (1) | CN101764290B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025033B (en) * | 2010-09-30 | 2015-05-27 | 江苏华厦电力成套设备有限公司 | High-efficiency enhanced type lead wire continuity device |
| CN103326294B (en) * | 2013-06-05 | 2016-03-02 | 国家电网公司 | A kind of overhead transmission line drainage place Special wire connects gold utensil and attaching method thereof |
| CN104538815B (en) * | 2014-12-02 | 2016-08-24 | 国网河南省电力公司洛阳供电公司 | A kind of correcting unit of aluminium hydraulic pressed connecting pipe |
| CN109616849B (en) * | 2019-01-09 | 2019-12-13 | 贵州电网有限责任公司 | Method for butt joint and aluminum embedding of 19 stranded steel strands of overhead conductor |
| CN110364907B (en) * | 2019-08-08 | 2021-01-26 | 贵州电网有限责任公司 | Compression joint method for 7-strand steel-cored aluminum strands of round-wire concentric stranded overhead conductor |
| CN113310790B (en) * | 2020-02-26 | 2023-03-28 | 中国能源建设集团江苏省电力设计院有限公司 | End reinforcing method for bare conductor tensile test |
| CN113904193A (en) * | 2021-10-20 | 2022-01-07 | 中国南方电网有限责任公司超高压输电公司南宁局 | Steel core lapping and pipe penetrating device for large-section wire splicing pipe and acting method of steel core lapping and pipe penetrating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200959370Y (en) * | 2006-10-11 | 2007-10-10 | 辽宁省电力有限公司大连供电公司 | Steel-core aluminum-twisted wire butt-joined pipe |
| CN201069826Y (en) * | 2007-06-25 | 2008-06-04 | 四平线路器材厂 | Connection pipe of carbon fiber compound core lead |
| CN101527395A (en) * | 2008-12-25 | 2009-09-09 | 江苏宇飞电力科技有限公司 | JRLX/T carbon fiber wire splicing sleeve |
| CN201638941U (en) * | 2009-12-21 | 2010-11-17 | 中国电力科学研究院 | Connecting pipe for large-section leads |
-
2009
- 2009-12-21 CN CN2009102434023A patent/CN101764290B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200959370Y (en) * | 2006-10-11 | 2007-10-10 | 辽宁省电力有限公司大连供电公司 | Steel-core aluminum-twisted wire butt-joined pipe |
| CN201069826Y (en) * | 2007-06-25 | 2008-06-04 | 四平线路器材厂 | Connection pipe of carbon fiber compound core lead |
| CN101527395A (en) * | 2008-12-25 | 2009-09-09 | 江苏宇飞电力科技有限公司 | JRLX/T carbon fiber wire splicing sleeve |
| CN201638941U (en) * | 2009-12-21 | 2010-11-17 | 中国电力科学研究院 | Connecting pipe for large-section leads |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-115566A 1997.05.02 |
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| CN101764290A (en) | 2010-06-30 |
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Owner name: STATE ELECTRIC NET CROP. Effective date: 20130129 |
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Effective date of registration: 20130129 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee after: China Electric Power Research Institute Patentee after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |