CN205610095U - A drawing head for high tension cable - Google Patents
A drawing head for high tension cable Download PDFInfo
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- CN205610095U CN205610095U CN201620200718.XU CN201620200718U CN205610095U CN 205610095 U CN205610095 U CN 205610095U CN 201620200718 U CN201620200718 U CN 201620200718U CN 205610095 U CN205610095 U CN 205610095U
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- drawing head
- aluminum sheath
- corrugated aluminum
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Abstract
The utility model relates to a cable manufacture field, specific a drawing head for high tension cable that says so, including conical body, pull ring and steel casing pipe, the both ends of conical body link to each other with pull ring and steel casing pipe respectively, cable conductor has been placed to the inside of steel casing pipe, cable conductor outside has set gradually the insulating layer from interior outside, yarn layer and corrugated aluminum sheath block water, corrugated aluminum sheath and the direct fixed connection of the one end of conical body, corrugated aluminum sheath has one deck thermal contraction pipe with common cover of the surface of conical body. The utility model discloses the steel casing pipe adopts a low alloy steel Q345 to be the material, and steel surrender degree is 345Mpa, and its tensile strength is superior to traditional steel, and can weld, in the aspect of structural design: conical body, cable, corrugated aluminum sheath adopt the aluminum alloy of same material, have reduced the welding degree of difficulty, guarantee its leakproofness easily, avoid the cable to intake.
Description
Technical field
This utility model relates to cable production field, a kind of drawing head for high tension cable.
Background technology
Along with the continuous propelling of power grid construction, transmission and the distribution power requirements of power cable improve constantly, and the demand of high-pressure cross-linking cable increases day by day, and convenient in order to be construction, cable drawing head becomes the requisite adnexa of cable substantially.But the existing defects such as traditional drawing head structure design and material selection, when cabling, often there is phenomenon of rupture in drawing head, and the accident causing cable to be intake increases year by year；Although, currently with flying, excavation technology laying penetration pipe is the most universal to lay cable, but it is extremely difficult that cable directly pierces into spool, therefore, design that a kind of tensile strength is superior and good airproof performance be to be presently required to solve the technical problem that for laying the drawing head of cable.
If number of patent application is CN201420500522.3, the applying date: 2014-09-01, Publication No.: CN204068064U, publication date: 2014-11-05, the utility model patent of entitled " a kind of high tension cable totally enclosed type steel drawing head ", technical scheme is: the utility model discloses a kind of high tension cable totally enclosed type steel drawing head, solve the technical problem that being to provide one in use can meet relatively large traction, intake in preventing from using, and high tension cable totally enclosed type steel drawing head easy to make.For solving above-mentioned technical problem, this utility model is by the following technical solutions: a kind of high tension cable totally enclosed type steel drawing head, including cable conductor, oversheath, corrugated aluminium sheath, drawing head body and traction hanging ring screw, the internally installed of described drawing head body has a steel aluminium hydraulic pressed connecting pipe, one end of steel aluminium hydraulic pressed connecting pipe is connected with drawing head body, and the other end of steel aluminium hydraulic pressed connecting pipe crimps with the cable conductor of corresponding specification；The outside of described steel aluminium hydraulic pressed connecting pipe is provided with one section of galvanized steel vestlet, and one end of galvanized steel vestlet is connected by molten soldering T-Ring with corrugated aluminium sheath, and the other end is connected with drawing head body by argon arc welding T-Ring.
The drawing head body of above-mentioned file is to be connected with corrugated aluminium sheath by argon arc welding T-Ring, so easily causes corrugated aluminium sheath and easily produces loosen with corrugated aluminium sheath, causes the problem that the tensile strength of cable is not enough.
Summary of the invention
In order to overcome the problems referred to above of the prior art, a kind of drawing head for high tension cable is specifically now proposed.
For realizing above-mentioned technical purpose, technical solution of the present invention is as follows:
A kind of drawing head for high tension cable, it is characterized in that: include bullet, draw ring and steel thimble, the two ends of described bullet are connected with draw ring and steel thimble respectively, the inside of described steel thimble is placed with cable conductor, the outside of described cable conductor is disposed with insulating barrier outside interior, block water layer and corrugated aluminum sheath, described corrugated aluminum sheath is directly fixing with one end of bullet to be connected, and described corrugated aluminum sheath has collectively covered one layer of heat-shrinkable tube with the outer surface of bullet.
Described steel thimble is low-alloy steel Q345 sleeve pipe, and described steel surrender degree is 345Mpa.
Described corrugated aluminum sheath is outside equipped with external sheath layer.
Aluminium alloy in described bullet, corrugated aluminum sheath and cable is the aluminium alloy of identical material.
Described steel thimble is internally provided with screw thread.
Described corrugated aluminum sheath and bullet are welded to each other as integral type structure.
Described insulating barrier is high-voltage cross-linking polythene layer.Mainly make cable live part insulate with external environment, also act protecting cable bad simultaneously.
Described waterstop 2 layers is wrapped to be wrapped in outside insulating layer of conductor.
Described corrugated aluminum sheath is insulated wire cores 15-20cm to be exceeded when extruding, in order to corrugated aluminum sheath welds with bullet.
Advantages of the present invention is:
This utility model steel thimble uses a kind of low-alloy steel Q345 to be material, and steel surrender degree is 345Mpa, and its tensile strength is superior to tradition steel, and solderable；At structure design aspect: bullet, cable, corrugated aluminum sheath use the aluminium alloy of identical material, reduce welding difficulty, are easily guaranteed that its sealing, it is to avoid cable is intake.Bullet of the present utility model directly welds with corrugated aluminum sheath, enhances the tensile strength of cable.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
In accompanying drawing: draw ring 1, bullet 2, steel thimble 3, cable conductor 4, heat-shrinkable tube 5, corrugated aluminum sheath 6, block water layer 7, insulating barrier 8, oversheath 9.
Detailed description of the invention
Embodiment 1
A kind of drawing head for high tension cable includes bullet 2, draw ring 1 and steel thimble 3, the two ends of described bullet 2 are connected with draw ring 1 and steel thimble 3 respectively, the inside of described steel thimble 3 is placed with cable conductor 4, the outside of described cable conductor 4 is disposed with insulating barrier 8 outside interior, block water layer 7 and corrugated aluminum sheath 6, described corrugated aluminum sheath 6 is directly fixing with one end of bullet 2 to be connected, and described corrugated aluminum sheath 6 has collectively covered one layer of heat-shrinkable tube 5 with the outer surface of bullet 2.This utility model steel thimble 3 uses a kind of low-alloy steel Q345 to be material, and steel surrender degree is 345Mpa, and its tensile strength is superior to tradition steel, and solderable；At structure design aspect: bullet 2, cable, corrugated aluminum sheath 6 use the aluminium alloy of identical material, reduce welding difficulty, are easily guaranteed that its sealing, it is to avoid cable is intake.Bullet 2 of the present utility model directly welds with corrugated aluminum sheath 6, enhances the tensile strength of cable.
Embodiment 2
A kind of drawing head for high tension cable includes bullet 2, draw ring 1 and steel thimble 3, the two ends of described bullet 2 are connected with draw ring 1 and steel thimble 3 respectively, the inside of described steel thimble 3 is placed with cable conductor 4, the outside of described cable conductor 4 is disposed with insulating barrier 8 outside interior, block water layer 7 and corrugated aluminum sheath 6, described corrugated aluminum sheath 6 is directly fixing with one end of bullet 2 to be connected, and described corrugated aluminum sheath 6 has collectively covered one layer of heat-shrinkable tube 5 with the outer surface of bullet 2.Described corrugated aluminum sheath is outside equipped with oversheath 9 layers.
Steel thimble 3 is low-alloy steel Q345 sleeve pipe, and described steel surrender degree is 345Mpa.Aluminium alloy in bullet 2, corrugated aluminum sheath 6 and cable is the aluminium alloy of identical material.Steel thimble 3 is internally provided with screw thread.Corrugated aluminum sheath 6 and bullet 2 are welded to each other as integral type structure.Insulating barrier 8 is high-voltage cross-linking polythene layer.Mainly make cable live part insulate with external environment, also act protecting cable bad simultaneously.Described waterstop 2 layers is wrapped to be wrapped in outside insulating layer of conductor 8.Corrugated aluminum sheath 6 is insulated wire cores 15 20cm to be exceeded when extruding, in order to corrugated aluminum sheath 6 welds with bullet 2.
This utility model steel thimble 3 uses a kind of low-alloy steel Q345 to be material, and steel surrender degree is 345Mpa, and its tensile strength is superior to tradition steel, and solderable；At structure design aspect: bullet 2, cable, corrugated aluminum sheath 6 use the aluminium alloy of identical material, reduce welding difficulty, are easily guaranteed that its sealing, it is to avoid cable is intake.Bullet 2 of the present utility model directly welds with corrugated aluminum sheath 6, enhances the tensile strength of cable.
As it can be seen, described steel thimble 3 uses engagement thread to be connected to bullet about 2 two ends with draw ring 1, form complete drawing head.
The crimping of described cable conductor 4 is fastened in steel thimble 3, and described steel thimble 3 left end is internally threaded, and strengthens cable conductor 4 and steel thimble 3 internal drag, it is to avoid crimping position skids.
Having extruded insulation 8 outside cable conductor 4, insulation 8 is coated with water blocking yarn 7, has extruded corrugated aluminum sheath 6 outside water blocking yarn 7, and corrugated aluminum sheath 6 right-hand member mates with bullet 2 left end, and passes through to be welded to connect in contact position to be integrated.
After described bullet 2 welds with corrugated aluminum sheath 3, surface covers one layer of heat-shrinkable tube 5, connects as one with 9 oversheaths, by drawing head and cable seal, it is to avoid water inlet.
Claims (8)
1. the drawing head for high tension cable, it is characterized in that: include bullet (2), draw ring (1) and steel thimble (3), the two ends of described bullet (2) are connected with draw ring (1) and steel thimble (3) respectively, the inside of described steel thimble (3) is placed with cable conductor (4), the outside of described cable conductor (4) is disposed with insulating barrier (8) outside interior, block water layer (7) and corrugated aluminum sheath (6), described corrugated aluminum sheath (6) is directly fixing with one end of bullet (2) to be connected, described corrugated aluminum sheath (6) has collectively covered one layer of heat-shrinkable tube (5) with the outer surface of bullet (2).
A kind of drawing head for high tension cable the most according to claim 1, it is characterised in that: described steel thimble (3) is low-alloy steel Q345 sleeve pipe, and described steel surrender degree is 345Mpa.
A kind of drawing head for high tension cable the most according to claim 2, it is characterised in that: described corrugated aluminum sheath is outside equipped with oversheath (9) layer.
A kind of drawing head for high tension cable the most according to claim 3, it is characterised in that: the aluminium alloy in described bullet (2), corrugated aluminum sheath (6) and cable is the aluminium alloy of identical material.
A kind of drawing head for high tension cable the most according to claim 4, it is characterised in that: described steel thimble (3) is internally provided with screw thread.
A kind of drawing head for high tension cable the most according to claim 5, it is characterised in that: described corrugated aluminum sheath (6) and bullet (2) are welded to each other as integral type structure.
A kind of drawing head for high tension cable the most according to claim 6, it is characterised in that: described insulating barrier (8) is high-voltage cross-linking polythene layer.
A kind of drawing head for high tension cable the most according to claim 7, it is characterised in that: described waterstop 2 layers is wrapped is wrapped in insulating layer of conductor (8) outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620200718.XU CN205610095U (en) | 2016-03-16 | 2016-03-16 | A drawing head for high tension cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620200718.XU CN205610095U (en) | 2016-03-16 | 2016-03-16 | A drawing head for high tension cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205610095U true CN205610095U (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620200718.XU Active CN205610095U (en) | 2016-03-16 | 2016-03-16 | A drawing head for high tension cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092188A (en) * | 2017-12-25 | 2018-05-29 | 扬州曙光电缆股份有限公司 | A kind of cable for possessing self- steering function |
| CN113471881A (en) * | 2021-07-13 | 2021-10-01 | 浙江万马股份有限公司 | Untwisting waterproof high-voltage cable traction head and preparation method thereof |
-
2016
- 2016-03-16 CN CN201620200718.XU patent/CN205610095U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092188A (en) * | 2017-12-25 | 2018-05-29 | 扬州曙光电缆股份有限公司 | A kind of cable for possessing self- steering function |
| CN113471881A (en) * | 2021-07-13 | 2021-10-01 | 浙江万马股份有限公司 | Untwisting waterproof high-voltage cable traction head and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |