CN202957077U - Pressure welding structure of high-pressure cross-linking three-layer co-extrusion continuous production plate-changing conductor - Google Patents
Pressure welding structure of high-pressure cross-linking three-layer co-extrusion continuous production plate-changing conductor Download PDFInfo
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- CN202957077U CN202957077U CN 201220609414 CN201220609414U CN202957077U CN 202957077 U CN202957077 U CN 202957077U CN 201220609414 CN201220609414 CN 201220609414 CN 201220609414 U CN201220609414 U CN 201220609414U CN 202957077 U CN202957077 U CN 202957077U
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Abstract
The utility model discloses a pressure welding structure of a high-pressure cross-linking three-layer co-extrusion continuous production plate-changing conductor. The head end of one plate of conductors and the tail end of the other plate of conductors form a head and tail connection section with the outer diameter smaller than the pressing outer diameters of conductors after coating removing, and an iron pipe with the outer diameter close to the pressing outer diameters of conductors and the inner diameter is slightly larger than the outer diameter of the connection section is prepared according to the pressing outer diameters of conductors; a head connection section of one plate of conductors and a tail connection section of the other plate of conductors are inserted in inner holes at two ends of a steel pipe for pressure welding, so that conductors and the inner wall of the iron pipe contact closely. According to the pressure welding structure, cold pressing welding is adopted on the high-pressure cross-linking three-layer co-extrusion conductor plate-changing connection, only an iron pressure welding pipe and a manual hydraulic mold which are convenient to draw are selected, the iron pressure welding pipe is connected with two ends, and compared with the resistance butt welding connection method, the operation is simple, the success rate is high, and one investment of equipment is more than 30% lower than that of the resistance butt welding scheme.
Description
Technical field
The utility model relates to the cables manufacturing technical field, be particularly related to the three-layer co-extruded continuous production of a kind of high-voltage crosslinking and change dish conductor crimping structure, this structure is specially adapted to crosslinked polyethylene middle high-pressure electric power cable insulation and extrudes the three-layer co-extruded continuous cross-linking type units that adopt more.
Background technology
The dog-eat-dog degree in the current cable of China market is well imagined, wants to obtain larger benefit in fierce market competition, will constantly innovate, and strengthens production process and controls, and reduces costs as far as possible.
Because copper valency material is extremely unstable, general enterprises is all carried out the mode of producing by order, and therefore the same specification length of each production reaches more than ten kilometer, and four or five dishes are arranged at least.
As everyone knows, middle high-pressure cross-linked cable insulation core production process adopts not shut down changes dish, so reduce as far as possible the startup-shutdown number of times of cross-linking production line during each joint, is the effective ways that reduce product cost.
Joint is classified by technique: upset butt welding, overlap joint silver soldering.Upset butt welding refers to that logical very large electric current makes the conductor melting at short notice.Upset butt welding has that joint is smooth, burr is little, the simple characteristics of welding process, but the mechanical performance of upset hutt welding is very low, welding preparation is required high, and operating personnel require experience very abundant, otherwise are difficult to judge whether joint welds.The method is comparatively practical to small bore.Overlap joint silver soldering method refers to that on overlapping surface, two ends, with coupling together after the silver solder fusing, mechanical strength is not high, and the joint external diameter is bigger than normal, at the middle high-pressure conductor splice, does not use this method.
The utility model content
Technical problem to be solved in the utility model is to provide the three-layer co-extruded continuous production of a kind of high-voltage crosslinking to change dish conductor crimping structure; the method is a kind of Cold welding structure; have that the dish of changing is not shut down, the characteristics such as the time was as short as in several minutes; simple to operate; improve the conductor splice success rate, reduced labor strength.
For realizing above utility model purpose, the technical scheme that the utility model adopts is:
Dish conductor crimping structure is changed in the three-layer co-extruded continuous production of a kind of high-voltage crosslinking, it is characterized in that, the tail end of the head end of one dish conductor and another dish conductor is gone to form the initial and end linkage section that an external diameter is less than the conductor compacting external diameter after layer, prepare according to the conductor compacting external diameter that external diameter is close with described conductor compacting external diameter, internal diameter is slightly larger than the linkage section external diameter iron pipe; The tail linkage section of the first linkage section of one dish conductor and another dish conductor is inserted in the endoporus of steel pipe two ends and carries out crimping, make conductor and iron pipe inwall close contact in it.
In a preferred embodiment of the present utility model, the length of described steel pipe is 100mm, first linkage section<50mm, but >=20mm, tail linkage section<50mm, but >=20mm.
In a preferred embodiment of the present utility model, the internal diameter of described steel pipe is greater than initial and end linkage section external diameter 0.3mm.
In a preferred embodiment of the present utility model, the wall thickness of described steel pipe is 0.8～1.0mm.
Owing to having adopted technique scheme, the tail linkage section employing steel pipe of the first linkage section of the utility model one dish conductor and another dish conductor presses rear junction conductor tensile strength and does not descend, be unlikely conductor is broken, low to operating personnel's specification requirement than the conductor resistance duct butt-welding method, the conductor resistance butt welding is because rosin joint causes the joint failure scenarios to occur, and therefore continuing, it is higher to connect into power.Upset butt welding equipment adopts import mostly, price is up to more than 100 ten thousand yuan, and adopt this method to connect all facilities, be added together less than 50,000 yuan, iron pipe is drawn materials conveniently, comparatively desirable method, especially obvious for the continuous production effect of aluminium core High-Voltage Insulation core, the most easily rosin joint occur and be difficult to perceive because the aluminium core conductor continues, general aluminium core success rate only has 80%, and this method can reach 100%.The utility model changes and coils the employing Cold welding that continues the three-layer co-extruded conductor of high-voltage crosslinking, just select draw materials iron aluminium hydraulic pressed connecting pipe and hand-hydraulic mould easily, the iron aluminium hydraulic pressed connecting pipe connects two ends, simple to operate than the upset butt welding connecting method, have higher success rate, output investment ratio upset butt welding scheme of equipment is few more than 30%.
The accompanying drawing explanation
The head end that Fig. 1 is a dish conductor removes the structural representation after layer.
The head end that Fig. 2 is another dish conductor removes the structural representation after layer.
Fig. 3 is the view that steel pipe is connected the tail linkage section of the first linkage section of a dish conductor and another dish conductor.
Fig. 4 is the view that steel pipe is connected the tail linkage section of the first linkage section of a dish conductor and another dish conductor.
Fig. 5 is the view after the steel pipe polishing.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Dish conductor crimping structure is changed in the three-layer co-extruded continuous production of a kind of high-voltage crosslinking, and the changing in the dish process of conductor will be carried out by speed faster the connection of conductor.Specific practice is: will on another pay off rack, install the conductor drum for the treatment of joint in process of production, extracting conductor 200 out removes skin and cuts flat rear formation one<50mm, but the first linkage section 110(of >=20mm is referring to Fig. 1), and preprepared iron pipe 300, referring to Fig. 3, the length of steel pipe 300 is 100mm, and the internal diameter of steel pipe 300 is greater than initial and end linkage section 110,210 external diameter 0.3mm, and the wall thickness of steel pipe 100 is 0.8～1.0mm.
When a dish conductor production also is left 20～30 meters, stop unwrapping wire, and continue to produce with the reserved conductor on storage line device, to coil rapidly remaining conductor takes off simultaneously, after being removed to skin, tail end conductor 200 cuts flat again formation one<50mm, but the first linkage section 210(of >=20mm is referring to Fig. 2), by two dish conductors 100, head on 200, tail linkage section 110, 210 insert in iron pipe 100 (as shown in Figure 4), put into the hydraulic pressure die cavity and open hand switch, make conductor 100, head on 200, tail linkage section 110, 210 compress with iron pipe 300, whether pull at check compresses, the joint iron pipe polished after compression as shown in Figure 5, check that with slide calliper rule the external diameter of joint and conductor diameter approach, and restart pay off rack, open the conductor chuck on storage line device, by the normality condition, produce.
Claims (4)
1. dish conductor crimping structure is changed in the three-layer co-extruded continuous production of high-voltage crosslinking, it is characterized in that, the tail end of the head end of one dish conductor and another dish conductor is gone to form the initial and end linkage section that an external diameter is less than the conductor compacting external diameter after layer, prepare according to the conductor compacting external diameter that external diameter is close with described conductor compacting external diameter, internal diameter is slightly larger than the linkage section external diameter iron pipe; The tail linkage section of the first linkage section of one dish conductor and another dish conductor is inserted in the endoporus of steel pipe two ends and carries out crimping, make conductor and iron pipe inwall close contact in it.
2. dish conductor crimping structure is changed in the three-layer co-extruded continuous production of a kind of high-voltage crosslinking as claimed in claim 1, it is characterized in that, the length of described steel pipe is 100mm, first linkage section<50mm, but >=20mm, tail linkage section<50mm, but >=20mm.
3. dish conductor crimping structure is changed in the three-layer co-extruded continuous production of a kind of high-voltage crosslinking as claimed in claim 2, it is characterized in that, the internal diameter of described steel pipe is greater than initial and end linkage section external diameter 0.3mm.
4. dish conductor crimping structure is changed in the three-layer co-extruded continuous production of a kind of high-voltage crosslinking as claimed in claim 3, it is characterized in that, the wall thickness of described steel pipe is 0.8～1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220609414 CN202957077U (en) | 2012-11-16 | 2012-11-16 | Pressure welding structure of high-pressure cross-linking three-layer co-extrusion continuous production plate-changing conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220609414 CN202957077U (en) | 2012-11-16 | 2012-11-16 | Pressure welding structure of high-pressure cross-linking three-layer co-extrusion continuous production plate-changing conductor |
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| Publication Number | Publication Date |
|---|---|
| CN202957077U true CN202957077U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220609414 Expired - Fee Related CN202957077U (en) | 2012-11-16 | 2012-11-16 | Pressure welding structure of high-pressure cross-linking three-layer co-extrusion continuous production plate-changing conductor |
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| CN (1) | CN202957077U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993255A (en) * | 2015-07-29 | 2015-10-21 | 苏州宝兴电线电缆有限公司 | Conductor welding connection structure |
| CN105119062A (en) * | 2015-09-07 | 2015-12-02 | 金杯电工衡阳电缆有限公司 | Cable crimping bush for copper and aluminum cross-linked three-layer co-extrusion cables |
| CN105680279A (en) * | 2016-03-28 | 2016-06-15 | 海欣电工科技有限公司 | Quick coupling technology for medium and high-voltage cable conductor |
-
2012
- 2012-11-16 CN CN 201220609414 patent/CN202957077U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993255A (en) * | 2015-07-29 | 2015-10-21 | 苏州宝兴电线电缆有限公司 | Conductor welding connection structure |
| CN105119062A (en) * | 2015-09-07 | 2015-12-02 | 金杯电工衡阳电缆有限公司 | Cable crimping bush for copper and aluminum cross-linked three-layer co-extrusion cables |
| CN105680279A (en) * | 2016-03-28 | 2016-06-15 | 海欣电工科技有限公司 | Quick coupling technology for medium and high-voltage cable conductor |
| CN105680279B (en) * | 2016-03-28 | 2018-02-23 | 海欣电工科技有限公司 | Medium and high voltage cable conductor snap joint technique |
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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: 20130529 Termination date: 20151116 |
|
| EXPY | Termination of patent right or utility model |