CN114825196A - Manufacturing method of waterproof drawing head of composite smooth aluminum-sheathed cable - Google Patents
Manufacturing method of waterproof drawing head of composite smooth aluminum-sheathed cable Download PDFInfo
- Publication number
- CN114825196A CN114825196A CN202210091671.8A CN202210091671A CN114825196A CN 114825196 A CN114825196 A CN 114825196A CN 202210091671 A CN202210091671 A CN 202210091671A CN 114825196 A CN114825196 A CN 114825196A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- sleeve
- traction
- welding
- smooth aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/04—Cable-end sealings
- H02G15/043—Cable-end sealings with end caps, e.g. sleeve closed at one end
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Cable Accessories (AREA)
Abstract
The invention discloses a manufacturing method of a waterproof drawing head of a composite smooth aluminum-sheathed cable, which comprises the following steps: performing first welding sealing; installing a cable conductor core into a traction sleeve; after sleeving, pressing the middle section of the traction sleeve by using hydraulic pliers; after the compression joint is finished, a waterproof sealing ring and a flat gasket are sequentially arranged, and the waterproof sealing ring is tightly pressed on the lining pressure cover through the gradual screwing of the nut; screwing the welded aluminum outer protective pipe and the aluminum traction head body with the traction sleeve through threads; performing second welding seal to firmly weld the aluminum outer protective pipe and the smooth aluminum protective pipe; packaging the first layer of heat-shrinkable tubing; and packaging the second layer of heat-shrinkable tubing. According to the invention, a certain gap is formed between the smooth aluminum protective sleeve and the aluminum outer protective sleeve, and welding materials can permeate, so that the firmness and reliability of a welding seam can be ensured.
Description
The invention is based on the Chinese patent number submitted by the applicant on 12, 22/2020
2020115254307 patent name "waterproof drawing head of composite smooth aluminum sleeve cable and manufacturing method thereof"
The divisional applications, at least a portion of the original specification is incorporated herein by reference.
Technical Field
The invention relates to the technical field of cables, in particular to a cable traction head.
Background
In recent years, the wrinkle aluminum sleeve high-voltage cable in the operation of a power grid system generates an electric corrosion phenomenon for many times, and a cable breakdown accident can be generated in serious cases, so that serious hidden dangers are generated for the safe operation of the power grid. The applicant has developed a new type of composite smooth aluminum jacketed high voltage cable product. In the laying construction of the composite smooth aluminum sheathed cable, how to effectively prevent water from entering the direct-buried or pipe-penetrating laid cable is an important problem to be solved by cable manufacturers.
In the past, although the corrugated aluminum sleeve high-voltage cable adopts the modes of end enclosure or welding and the like, in the actual laying process, the welding seam of the cable traction head is often pulled to be broken or even the cable traction head is pulled off due to the irregular bending of a cable pipeline. When water exists in the pipeline, a large amount of water enters the cable or the conductor, so that the product quality of the cable is seriously affected, and the safety operation of the cable is seriously hidden.
The conventional waterproof traction head is specially designed for conveniently installing and laying the corrugated aluminum sleeve cable, has a simpler structure, can be mastered in the manufacturing process, and can completely meet the requirements of cable laying environments in various occasions.
The design of the waterproof drawing head of the corrugated aluminum sleeve cable mainly adopts the secondary welding seal and the expansion waterproof function of an O-shaped rubber ring, and the installation process technology of the waterproof drawing head is invented. Because the design adopts secondary welding seal, when the cable is subjected to high-strength pulling force, even if the welding seam of the aluminum outer protective pipe and the aluminum corrugated pipe is broken by pultrusion in laying construction, the possibility that water enters the cable from the aluminum corrugated pipe is sealed by a layer of welding seal in the cable. And the sealing mode of the waterproof O-shaped rubber ring is adopted at the cable core, so that even if a large amount of water exists outside the traction sleeve, the water cannot leak from the conductor core, and the waterproof effect is achieved.
However, for the high-voltage cable with the smooth aluminum sleeve structure, due to the fact that the aluminum sleeve is in close contact with the whole surface of the buffer layer of the cable insulation wire core, the phenomena of insufficient soldering, scorching and infirm soldering can occur when the cable end face drawing head is welded. If the traction head manufactured by the process is damaged easily in severe construction conditions or southern areas with high underground water level, especially when the cable penetrates through a large-length jacking pipe, the end of the cable is easy to enter water. Once the cable is flooded, it is very cumbersome to handle.
Disclosure of Invention
The invention aims to solve the technical problem of providing a manufacturing method of a waterproof drawing head of a composite smooth aluminum sheathed cable, and the waterproof drawing head can avoid water inflow of the cable end of the manufactured smooth aluminum sheathed cable.
In order to solve the technical problems, the invention adopts the following technical scheme: a method for manufacturing a waterproof traction head of a composite smooth aluminum sheathed cable comprises a cable conductor core and a smooth aluminum protective sleeve coated outside the cable conductor core, wherein the waterproof traction head comprises an aluminum traction head body and an aluminum outer protective sleeve connected with the rear end of the aluminum traction head body, a traction sleeve is sleeved outside the head of the cable conductor core, the traction sleeve extends into the aluminum outer protective sleeve and is connected with the rear end of the aluminum traction head body, the waterproof traction head also comprises a lining gland with a convex ring at the periphery of one side, the head end of the smooth aluminum protective sleeve is provided with an expanding part, the expanding part comprises a conical ring section and a circular ring section connected with the front end of the conical ring section, the convex ring of the lining gland is lined and welded on the inner wall of the circular ring section, the circular ring section is welded with the inner wall of the rear port of the aluminum outer protective sleeve, and the welding seam width covers the whole circular ring section, the rear portion threaded connection of traction sleeve has the nut, be equipped with waterproof sealing washer and plain washer between nut and the inside lining gland, the welding point outside of port is equipped with heat shrinkage bush behind ring segment and the aluminium outer pillar, heat shrinkage bush is equipped with two-layerly, and the second floor heat shrinkage bush seals outside first layer heat shrinkage bush and longer than first layer heat shrinkage bush's length, there is the lifting hook pull ring head end of traction head body through threaded connection, waterproof traction head's manufacturing method includes the following step:
1) heating the outer sheath outside the smooth aluminum sheath pipe at the head part of the cable to enable the hot melt adhesive on the surface of the smooth aluminum sheath pipe to be in a molten state, then stripping the outer sheath, and cleaning the hot melt adhesive outside the smooth aluminum sheath pipe;
2) stripping the smooth aluminum sheath pipe and the insulating layer inside the smooth aluminum sheath pipe, and reserving the head of a cable conductor core;
3) a smooth aluminum sleeve expanding device with the similar inner diameter is sleeved in the smooth aluminum protective sleeve, and a certain hammering force is applied inwards to slowly expand the smooth aluminum protective sleeve to form an expanding part;
4) then, sleeving a lining gland into the cable conductor core and pushing to the bottom, and lining the convex ring in the circular ring section of the smooth aluminum protective sleeve;
5) performing first welding seal, and firmly welding and sealing the lining gland and the circular ring section of the smooth aluminum protective sleeve;
6) after the first welding and sealing, waiting for 5-10 minutes for cooling;
7) installing a cable conductor core into a traction sleeve;
8) after sleeving, pressing the middle section of the traction sleeve by using hydraulic pliers;
9) after the compression joint is finished, a waterproof sealing ring and a flat gasket are sequentially arranged, and the waterproof sealing ring is tightly pressed on the lining pressure cover through the gradual screwing of the nut;
10) screwing the welded aluminum outer protective pipe and the aluminum traction head body with the traction sleeve through threads;
11) performing second welding seal to firmly weld the aluminum outer protective pipe and the smooth aluminum protective pipe;
12) after cooling for 5-10 minutes, packaging the first layer of heat-shrinkable tubing;
13) and packaging the second layer of heat-shrinkable sleeve, and screwing the lifting hook pull ring on the aluminum traction head body in the spiral direction.
According to the technical scheme, the smooth aluminum protective sleeve at the end of the cable is expanded into a horn shape through the smooth aluminum sleeve expanding device, a certain horn-shaped gap is formed between the smooth aluminum protective sleeve and the cable insulation buffer layer, so that when the smooth aluminum protective sleeve is welded with the aluminum outer protective sleeve, a certain gap is formed between the smooth aluminum protective sleeve and the aluminum outer protective sleeve, welding materials can penetrate through the gap, and meanwhile, a larger welding area is formed between the circular ring section of the smooth aluminum protective sleeve and the inner wall of the rear end opening of the aluminum outer protective sleeve, so that a firm and reliable welding seam can be guaranteed.
The lining gland is welded with the inner wall of the circular ring section of the smooth aluminum protective sleeve, so that the welded welding seam is firmer, and because the gap between the diameter-expanding part of the smooth aluminum protective sleeve and the cable buffer layer is increased, scorching and insufficient welding cannot be generated, so that the welding penetration is realized, and the welding seam is firmer.
The aluminum outer protective pipe and the smooth aluminum protective sleeve are sealed in a secondary welding mode, the width of a welding seam can cover the circular ring section of the smooth aluminum protective sleeve, meanwhile, the welding current is 10-20% higher than that of the traditional welding current, and the welding width is wider than that of the traditional welding, so that the welding seam is firmer.
By adopting the principle of expansion waterproof function of secondary welding seal and O-shaped rubber ring, after the secondary welding seal is adopted, when the cable is subjected to high-strength tension, even if the welding seam between the aluminum outer protective pipe of the traction head and the smooth aluminum protective sleeve is broken by pultrusion in laying construction, a layer of welding seal is still arranged between the convex ring of the lining gland inside and the smooth aluminum protective sleeve, so that the possibility that water enters the cable from the smooth aluminum protective sleeve is sealed. And the sealing mode of the waterproof O-shaped rubber ring is adopted at the cable core, so that even if a large amount of water exists outside the traction sleeve, the water cannot leak from the conductor core, and the waterproof effect is achieved.
The following detailed description of the present invention will be provided in conjunction with the accompanying drawings.
Drawings
The invention is further described with reference to the accompanying drawings and the detailed description below:
FIG. 1 is a schematic structural view of a waterproof drawing head of a composite smooth aluminum-sheathed cable according to the invention;
FIG. 2 is a schematic illustration of the smooth aluminum sleeve being expanded;
in the figure: 1. shielding in the cable; 2. a cable insulation layer; 3. shielding the cable; 4. smooth aluminum sheathing tubes; 5. an expanding portion; 6. secondary welding points; 7. welding and sealing points for the first time; 8. a lining gland; 9. a waterproof sealing ring; 10. a flat washer; 11. a nut; 12. pulling the casing; 13. a cable conductor core; 14. an aluminum outer protective tube; 15. a traction head welding point; 16. an aluminum tractor body; 17. a lifting hook pull ring, 100, a smooth aluminum sleeve expanding device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be understood that the features of the following examples and embodiments may be combined with each other without conflict.
In the process of researching and producing the smooth aluminum-sheathed high-voltage cable, the applicant aims to solve the problems existing in the welding of the waterproof drawing head of the smooth aluminum-sheathed high-voltage cable and find out various defects existing in the welding process, and the diameter-expanding welding process is designed to overcome the problems. In order to achieve the purpose, the technical concept of welding after expanding the diameter of the smooth aluminum sleeve is designed, the smooth aluminum sleeve is ensured to be firmly welded, and even under the worst environmental condition, the cable head of the smooth aluminum sleeve cable is ensured not to enter water after being subjected to field tension construction, so that the quality of the cable construction process is ensured, and the product quality of the cable is ensured.
As shown in fig. 1, a composite smooth aluminum sheathed cable waterproof drawing head, the cable comprises a cable conductor core 13, and a cable inner shield 1, a cable insulating layer 2, a cable outer shield 3 and a smooth aluminum sheath tube 4 which are coated outside the cable conductor core 13, and the specific structure can refer to the related patents or other prior arts which are applied by the applicant before.
The waterproof drawing head comprises an aluminum drawing head body 16 and an aluminum outer protection pipe 14 connected with the rear end of the aluminum drawing head body 16, a drawing sleeve 12 is sleeved outside the head of the cable conductor core 13, and the drawing sleeve 12 extends into the aluminum outer protection pipe 14 and is connected with the rear end of the aluminum drawing head body 16. The waterproof traction head further comprises a lining gland 8 with a convex ring at the periphery of one side, an expanding portion 5 is arranged at the head end of the smooth aluminum protective sleeve 4, the expanding portion 5 comprises a conical ring section and a circular ring section connected with the front end of the conical ring section, a convex ring lining of the lining gland 8 is welded on the inner wall of the circular ring section and serves as a primary welding point 7, the circular ring section is welded with the inner wall of the rear end port of the aluminum outer protective sleeve 14 and serves as a secondary welding point 6, a nut 11 is in threaded connection with the rear portion of the traction sleeve 12, and a waterproof sealing ring 9 and a flat gasket 10 are arranged between the nut 11 and the lining gland 8. Wherein, the waterproof sealing ring 9 adopts an O-shaped rubber ring, and the flat gasket 10 is a conventional flat gasket.
Furthermore, a heat-shrinkable sleeve is arranged outside a welding point of the circular ring section and the rear end opening of the aluminum outer protective pipe. The heat-shrinkable sleeve can firstly realize the water resistance of the cable drawing head outside the drawing head, and can effectively prevent water from entering; and when the heat-shrinkable sleeve is used for drawing the cable through pipe and laying friction, the heat-shrinkable sleeve can also realize effective protection on welding points and has a good waterproof effect.
The aluminum traction head comprises an aluminum traction head body 16, wherein the aluminum traction head body 16 is in a circular truncated cone shape, a step portion is arranged on the outer circle of the lower bottom of the circular truncated cone shape of the aluminum traction head body 16, and the head end of an aluminum outer protecting pipe 14 is sleeved on the step portion and welded and fixed to form a traction head welding point 15. And, the heat-shrinkable bush is equipped with two-layerly, and the one end of first layer heat-shrinkable bush extends to the port outside behind the aluminium outer pillar to cover secondary welding point 6, the other end extends to the excircle of going to the lower bottom of the round platform shape of aluminium traction head body, and covers traction head welding point 15, and equal circumference is evenly sealed. The second layer of heat-shrinkable sleeve is sealed outside the first layer of heat-shrinkable sleeve and is longer than the first layer of heat-shrinkable sleeve in length, and the two ends of the second layer of heat-shrinkable sleeve are correspondingly covered on the end parts of the two ends of the first layer of heat-shrinkable sleeve, and are uniformly sealed in the circumferential direction.
In addition, the traction sleeve 12 is in threaded connection with a threaded hole at the rear end of the aluminum traction head body 16, and the traction sleeve 12 is fixedly connected with the head of the cable conductor core 13 in a compression joint mode. The head end of the traction head body 16 is connected with a lifting hook pull ring 17 through threads.
As shown in fig. 1 and 2, a method for manufacturing a waterproof drawing head of a composite smooth aluminum-sheathed cable comprises the following steps:
1) according to the sizes of the cable traction heads with different specifications, the outer sheath is heated by a blast burner firstly, so that the hot melt adhesive of the anti-corrosion layer on the surface of the smooth aluminum sheath pipe 4 is in a molten state, the outer sheath is peeled off immediately, and the hot melt adhesive anti-corrosion layer outside the smooth aluminum sheath pipe is wiped clean.
2) The smooth aluminum protective sleeve 4 and the insulating layer inside the smooth aluminum protective sleeve are stripped by tools, a proper cable core length is reserved, the notch of the smooth aluminum protective sleeve 4 is kept as flat as possible, and the saw cut of the smooth aluminum protective sleeve 4 is polished to be flat by coarse abrasive cloth without burrs.
3) The smooth aluminum sheath expanding device 100 with the similar inner diameter is sleeved, a certain hammering force is applied inwards to slowly expand the smooth aluminum sheath pipe 4, and the expanded bell mouth inner diameter is similar to the outer diameter of the aluminum lining gland 8.
4) Then the lining gland 8 is sleeved in the cable conductor core 13 and pushed to the bottom, and the convex ring is lined in the smooth aluminum sheath pipe 4.
5) And then, performing first welding seal, namely, firmly welding the lining gland 8 and the inner opening of the spread smooth aluminum protective sleeve 4, wherein the welding seal method adopts direct welding of an aluminum welding rod.
6) And after the first welding and sealing, waiting for 5-10 minutes for cooling.
7) The cable conductor core 13 is installed into the traction sleeve 12, and the core is installed to the bottom of the traction sleeve.
8) After the sleeve is sleeved, the middle section of the traction sleeve 12 is pressed and connected with two to three ways by hydraulic pliers, so that the pressing and connection are firm and reliable.
9) After the compression joint is finished, the waterproof sealing ring 9 and the flat gasket 10 are sequentially arranged, and the waterproof sealing ring 9 is tightly pressed on the inner gasket gland 8 through gradually screwing in the nut 11.
10) The welded aluminum outer jacket 14 and aluminum tractor body 16 are threaded into the traction sleeve 12 and tightened.
11) Then, the second welding is carried out, and the welding method also adopts the direct welding of an aluminum welding rod, namely the welding of the aluminum outer protective pipe 14 and the smooth aluminum protective pipe 4 is firm;
12) after cooling for 5-10 minutes, packaging a first layer of heat-shrinkable tubing, wherein the first layer of heat-shrinkable tubing is sealed on the secondary welding points, and the periphery is uniformly sealed;
13) and packaging a second layer of heat-shrinkable sleeve, wherein the second layer of heat-shrinkable sleeve is sealed outside the first layer of heat-shrinkable sleeve. At this time, the welding and sealing work of the waterproof drawing head of the smooth aluminum sheathed cable is completed, and then the lifting hook pull ring 17 is screwed up in the spiral direction.
Because the clearance is arranged between the corrugated aluminum sleeve and the cable insulation buffer layer, the aluminum sleeve can permeate when being welded with the traction head, and the firm and reliable welding seam can be ensured. But the structure between level and smooth aluminium cover and the cable insulation buffer layer is inseparable, and is basically seamless, and unable infiltration can appear rosin joint, burnt, the not firm phenomenon of welding when aluminium cover and traction head welding, and also probably scald buffer layer and insulating layer. Therefore, in this embodiment, the smooth aluminum sheath expanding device 100 shown in fig. 2 is adopted to expand the smooth aluminum sheath 4 at the end of the cable into a horn shape, so that a certain horn-shaped gap is formed between the smooth aluminum sheath and the cable insulation buffer layer, so that when the smooth aluminum sheath is welded with the aluminum outer sheath, a certain gap is formed between the smooth aluminum sheath and the aluminum outer sheath, the welding material can penetrate through the gap, and meanwhile, a larger welding area is formed between the circular ring section of the smooth aluminum sheath and the inner wall of the rear port of the aluminum outer sheath, so that the welding seam can be ensured to be firm and reliable.
The lining gland is welded with the inner wall of the circular ring section of the smooth aluminum protective sleeve, so that the welded welding seam is firmer, and because the gap between the diameter-expanding part of the smooth aluminum protective sleeve and the cable buffer layer is increased, scorching and insufficient welding cannot be generated, so that the welding penetration is realized, and the welding seam is firmer.
The aluminum outer protective pipe and the smooth aluminum protective sleeve are sealed in a welding mode, the width of a welding seam can cover the circular ring section of the smooth aluminum protective sleeve, meanwhile, the welding current is 10-20% higher than that of the traditional welding current, the welding width is wider than that of the traditional welding, and the welding seam is firmer.
By adopting the principle of expansion waterproof function of secondary welding seal and O-shaped rubber ring, after the secondary welding seal is adopted, when the cable is subjected to high-strength tension, even if the welding seam between the aluminum outer protective pipe of the traction head and the smooth aluminum protective sleeve is broken by pultrusion in laying construction, a layer of welding seal is still arranged between the convex ring of the lining gland inside and the smooth aluminum protective sleeve, so that the possibility that water enters the cable from the smooth aluminum protective sleeve is sealed. And the sealing mode of the waterproof O-shaped rubber ring is adopted at the cable core, so that even if a large amount of water exists outside the traction sleeve, the water cannot leak from the conductor core, and the waterproof effect is achieved. The labor and material resources in the aspect of after-sale service are greatly saved, the working efficiency of laying construction is improved, and the cable quality is better ensured.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in other forms without departing from the spirit or essential characteristics thereof. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (1)
1. A method for manufacturing a waterproof traction head of a composite smooth aluminum sheathed cable comprises a cable conductor core and a smooth aluminum protective sleeve coated outside the cable conductor core, wherein the waterproof traction head comprises an aluminum traction head body and an aluminum outer protective sleeve connected with the rear end of the aluminum traction head body, a traction sleeve is sleeved outside the head of the cable conductor core, the traction sleeve extends into the aluminum outer protective sleeve and is connected with the rear end of the aluminum traction head body, the waterproof traction head also comprises a lining gland with a convex ring at the periphery of one side, the head end of the smooth aluminum protective sleeve is provided with an expanding part, the expanding part comprises a conical ring section and a circular ring section connected with the front end of the conical ring section, the convex ring of the lining gland is lined and welded on the inner wall of the circular ring section, the circular ring section is welded with the inner wall of the rear port of the aluminum outer protective sleeve, and the welding seam width covers the whole circular ring section, the rear portion threaded connection of traction sleeve has the nut, be equipped with waterproof sealing washer and plain washer between nut and the inside lining gland, the welding point outside of port is equipped with heat shrinkage bush behind ring segment and the aluminium outer pillar, heat shrinkage bush is equipped with two-layerly, and the second floor heat shrinkage bush seals outside first layer heat shrinkage bush and longer than first layer heat shrinkage bush's length, there is the lifting hook pull ring head end of traction head body through threaded connection, its characterized in that, waterproof traction head's manufacturing method includes the following step:
1) heating the outer sheath outside the smooth aluminum sheath pipe at the head part of the cable to enable the hot melt adhesive on the surface of the smooth aluminum sheath pipe to be in a molten state, then stripping the outer sheath, and cleaning the hot melt adhesive outside the smooth aluminum sheath pipe;
2) stripping the smooth aluminum sheath pipe and the insulating layer inside the smooth aluminum sheath pipe, and reserving the head of a cable conductor core;
3) a smooth aluminum sleeve expanding device with the similar inner diameter is sleeved in the smooth aluminum protective sleeve, and a certain hammering force is applied inwards to slowly expand the smooth aluminum protective sleeve to form an expanding part;
4) then, sleeving the lining gland into the cable conductor core and pushing to the bottom, and lining the convex ring into the circular ring section of the smooth aluminum protective sleeve;
5) performing first welding seal, and firmly welding and sealing the lining gland and the circular ring section of the smooth aluminum protective sleeve;
6) after the first welding and sealing, waiting for 5-10 minutes for cooling;
7) installing a cable conductor core into a traction sleeve;
8) after sleeving, pressing and connecting the middle section of the traction sleeve by using hydraulic pliers;
9) after the compression joint is finished, a waterproof sealing ring and a flat gasket are sequentially arranged, and the waterproof sealing ring is tightly pressed on the lining pressure cover through the gradual screwing of the nut;
10) screwing the welded aluminum outer protective pipe and the aluminum traction head body with the traction sleeve through threads;
11) performing second welding seal to firmly weld the aluminum outer protective pipe and the smooth aluminum protective pipe;
12) after cooling for 5-10 minutes, packaging the first layer of heat-shrinkable tubing;
13) and packaging the second layer of heat-shrinkable sleeve, and screwing the lifting hook pull ring on the aluminum traction head body in the spiral direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210091671.8A CN114825196B (en) | 2020-12-22 | 2020-12-22 | Manufacturing method of waterproof traction head of composite smooth aluminum sleeve cable |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210091671.8A CN114825196B (en) | 2020-12-22 | 2020-12-22 | Manufacturing method of waterproof traction head of composite smooth aluminum sleeve cable |
| CN202011525430.7A CN112653070B (en) | 2020-12-22 | 2020-12-22 | Waterproof drawing head of compound level and smooth aluminium sheathing cable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011525430.7A Division CN112653070B (en) | 2020-12-22 | 2020-12-22 | Waterproof drawing head of compound level and smooth aluminium sheathing cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114825196A true CN114825196A (en) | 2022-07-29 |
| CN114825196B CN114825196B (en) | 2023-05-26 |
Family
ID=75358862
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011525430.7A Active CN112653070B (en) | 2020-12-22 | 2020-12-22 | Waterproof drawing head of compound level and smooth aluminium sheathing cable |
| CN202210091671.8A Active CN114825196B (en) | 2020-12-22 | 2020-12-22 | Manufacturing method of waterproof traction head of composite smooth aluminum sleeve cable |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011525430.7A Active CN112653070B (en) | 2020-12-22 | 2020-12-22 | Waterproof drawing head of compound level and smooth aluminium sheathing cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN112653070B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102555699B1 (en) * | 2022-08-30 | 2023-07-13 | 김홍식 | Wire Pipe Traction Installation Device |
| CN117638735B (en) * | 2024-01-22 | 2024-04-02 | 云南多宝电缆集团股份有限公司 | Power cable traction head and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2697739A (en) * | 1948-03-22 | 1954-12-21 | Submarine Cables Ltd | Submarine cable repeater housing |
| US6538203B1 (en) * | 1999-02-24 | 2003-03-25 | Auto Kabel Managementgesellschaft Mbh | Connection of an electrical aluminum cable with a connection piece of copper or similar material |
| CN2770178Y (en) * | 2004-07-05 | 2006-04-05 | 特变电工山东鲁能泰山电缆有限公司 | Steel-aluminium combined pulling head for high voltage cross-linked cable |
| CN101752680A (en) * | 2009-12-21 | 2010-06-23 | 中国电力科学研究院 | Splicing sleeve for supporting expanded diameter conductor |
| CN102035150A (en) * | 2010-10-29 | 2011-04-27 | 浙江晨光电缆股份有限公司 | Waterproof drawing head of cable and mounting method thereof |
| CN203787867U (en) * | 2014-04-14 | 2014-08-20 | 惠州市金龙羽超高压电缆有限公司 | Single-core high-voltage cable drawing head |
| CN104300479A (en) * | 2014-09-15 | 2015-01-21 | 中天科技海缆有限公司 | Installation technology of power cable aluminum alloy waterproof drawing head |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162208A (en) * | 1996-02-08 | 1997-10-15 | 亚瑞亚·勃朗勃威力有限公司 | Line segment of gas-insulation cable |
| CA2615922A1 (en) * | 2005-07-20 | 2007-01-25 | Tracer Industries Canada Limited | Mineral insulated electric cable termination |
| CN101021292A (en) * | 2007-02-27 | 2007-08-22 | 刘冰 | Pipe end flared connection pipe |
| CN208643888U (en) * | 2018-05-11 | 2019-03-26 | 湖北洪乐电缆股份有限公司 | A kind of aluminium sheath expanding device |
| CN111292904B (en) * | 2020-03-27 | 2022-04-05 | 浙江晨光电缆股份有限公司 | Compound level and smooth aluminium sheathing multilayer is crowded cable production facility altogether |
-
2020
- 2020-12-22 CN CN202011525430.7A patent/CN112653070B/en active Active
- 2020-12-22 CN CN202210091671.8A patent/CN114825196B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2697739A (en) * | 1948-03-22 | 1954-12-21 | Submarine Cables Ltd | Submarine cable repeater housing |
| US6538203B1 (en) * | 1999-02-24 | 2003-03-25 | Auto Kabel Managementgesellschaft Mbh | Connection of an electrical aluminum cable with a connection piece of copper or similar material |
| CN2770178Y (en) * | 2004-07-05 | 2006-04-05 | 特变电工山东鲁能泰山电缆有限公司 | Steel-aluminium combined pulling head for high voltage cross-linked cable |
| CN101752680A (en) * | 2009-12-21 | 2010-06-23 | 中国电力科学研究院 | Splicing sleeve for supporting expanded diameter conductor |
| CN102035150A (en) * | 2010-10-29 | 2011-04-27 | 浙江晨光电缆股份有限公司 | Waterproof drawing head of cable and mounting method thereof |
| CN203787867U (en) * | 2014-04-14 | 2014-08-20 | 惠州市金龙羽超高压电缆有限公司 | Single-core high-voltage cable drawing head |
| CN104300479A (en) * | 2014-09-15 | 2015-01-21 | 中天科技海缆有限公司 | Installation technology of power cable aluminum alloy waterproof drawing head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112653070B (en) | 2022-03-15 |
| CN114825196B (en) | 2023-05-26 |
| CN112653070A (en) | 2021-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112653070B (en) | Waterproof drawing head of compound level and smooth aluminium sheathing cable | |
| CN106451313B (en) | A kind of DC ultra-high-voltage crosslinked cable connecting hose and manufacture craft | |
| CN113937589A (en) | Cable connection construction process | |
| CN102035150B (en) | Waterproof drawing head of cable and mounting method thereof | |
| CN213879258U (en) | Waterproof drawing head of compound level and smooth aluminium sheathing cable of secondary seal welding | |
| CN112993881A (en) | Wire joint insulation processing device | |
| CN112117714A (en) | Cable intermediate joint installation method and expansion device | |
| CN111293664B (en) | Cable terminal tail pipe and connecting process thereof | |
| CN206353609U (en) | A kind of new power transmission and distribution splicing fitting | |
| CN211788389U (en) | PVC heat-shrinkable sleeve with flame retardance | |
| CN209786772U (en) | Three-core high-voltage submarine cable joint box | |
| JP2001231150A (en) | Water-proof normal temperature shrinkage tube | |
| CN107104412A (en) | A kind of integrated cable gland and clamping method | |
| CN201838940U (en) | Waterproof drawing head of cable | |
| CN210838762U (en) | Special explosion-proof threading pipe of motor | |
| CN109786015B (en) | Fireproof cable convenient to maintain | |
| CN212412737U (en) | Thermal shrinkage intermediate joint with armor | |
| CN220605464U (en) | Thermal shrinkage pipe | |
| CN219801756U (en) | Explosion-proof flexible connecting pipe | |
| CN215496101U (en) | Integrated control cable accessory | |
| CN216133986U (en) | Full-recovery type cable welding head | |
| CN220086961U (en) | Cable repair sleeve | |
| CN216056045U (en) | Cable traction head | |
| CN219626899U (en) | Waterproof joint for aluminum wire shielding aluminum core cable | |
| CN214466724U (en) | Water conservancy metal reinforced plastic drain pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |