CN210111485U - Submarine cable traction head - Google Patents
Submarine cable traction head Download PDFInfo
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- CN210111485U CN210111485U CN201921026077.0U CN201921026077U CN210111485U CN 210111485 U CN210111485 U CN 210111485U CN 201921026077 U CN201921026077 U CN 201921026077U CN 210111485 U CN210111485 U CN 210111485U
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- submarine cable
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Abstract
The utility model relates to a submarine cable traction head belongs to cable technical field. The pull rod type vacuum pump comprises a rear shell, a front shell and a pull rod which are sequentially connected, wherein the rear shell is provided with a central through hole, one end of the front shell is provided with a cavity, and the other end of the front shell is of a closed structure; the rear shell is in threaded connection with the front shell, and a central through hole of the rear shell is communicated with a cavity of the front shell to form a glue pouring cavity; the pull rod is rotatably connected with the outer wall of the closed end of the front shell through a bearing, and the hole wall of the rear shell is provided with two plug holes and is provided with a plug. The armored steel wire of the submarine cable is tightly connected with the armored steel wire in the glue filling cavity through the steel wire fastening glue to bear all traction force of the submarine cable, and no other structure is arranged in the glue filling cavity, so that the outer diameter of the traction head is minimized, and the construction difficulty is reduced; the end part of the submarine cable body is sealed with lead to isolate the seawater from entering; the back-twist mechanism prevents the traction head and the submarine cable from being affected by torsion and prevents silt from being blocked.
Description
Technical Field
The utility model relates to a submarine cable traction head belongs to cable technical field.
Background
Marine cables are important communication devices that are laid on the sea floor to establish locations between countries, islands and inland, oil platforms and inland, cross-sea military facilities, and the like. With the increasing demand for energy in China, the development strength of ocean oil gas and offshore wind power is also rapidly increased. As an important medium of power transmission, the safety and reliability of the submarine cable in use are important.
Submarine cable is when laying, especially passes the submarine pipeline and goes up the platform in-process, need to drag draw gear at submarine cable head installation one, be used for fixed traction wire rope, because the platform height is high, the weight of cable is big, if the head draw gear of submarine cable and cable are fixed not tight, lead to the submarine cable slippage easily, the cable head needs to carry out sealed processing simultaneously, prevent that the cable from intaking, and the submarine cable can twist reverse under tensile state, if not back the device of twisting, the cable can twist off, these problems all can cause serious economic loss.
For example, chinese patent application publication No. CN 104300442 a discloses a submarine cable pulling head, but has the following disadvantages:
1) the back-twist mechanism of the existing submarine cable traction head is easily blocked by silt, the back-twist effect is influenced, and the submarine cable can be damaged in serious cases.
2) The pressing mode of the armored steel wire of the existing submarine cable traction head enables the whole outer diameter of the submarine cable traction head to be larger than normal during design of the submarine cable traction head, and the construction difficulty is increased.
3) The existing submarine cable traction head is complex in design, high in corresponding machining difficulty and high in cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of above-mentioned prior art, provide a submarine cable traction head of brand-new design.
The technical scheme of the utility model as follows:
the submarine cable traction head is characterized by comprising a rear shell, a front shell and a pull rod which are sequentially connected, wherein the rear shell is provided with a central through hole, one end of the front shell is provided with a cavity, and the other end of the front shell is of a closed structure; the rear shell is in threaded connection with the front shell, and a central through hole of the rear shell is communicated with a cavity of the front shell to form a glue pouring cavity; the pull rod is rotatably connected with the outer wall of the closed end of the front shell through a bearing, and the hole wall of the rear shell is provided with two plug holes and is provided with a plug.
Preferably, the front housing has one end with a cavity, the outer side wall of the front housing is provided with an external thread, the rear housing is at one end connected with the front housing, the inner side wall of the rear housing is provided with an internal thread, and the front housing and the rear housing are in threaded connection through the internal thread and the external thread and are fixed through a set screw.
Preferably, the pull rod is fixedly connected with the outer ring of the bearing through a pull rod connecting piece and a bearing outer connecting piece, and the inner ring of the bearing is fixedly connected with the closed end of the front shell through a bearing inner connecting piece.
Preferably, the pull rod is fixedly connected with the pull rod connecting piece through a screw, the pull rod connecting piece is fixedly connected with the bearing outer connecting piece through a screw, and the bearing is fixedly arranged in a central hole of the bearing outer connecting piece; the bearing inner connecting piece is fixedly connected with the inner ring of the bearing through a shaft retaining ring, and the bearing inner connecting piece is fixedly connected with the closed end of the front shell through a screw.
Preferably, the pull rod connecting piece, the bearing outer connecting piece and the closed end of the front shell form a conical body.
Preferably, the outer side wall of the closed end of the front shell is provided with a circle of concave steps, the bearing outer connecting piece is arranged at one end contacted with the steps, and the outer side wall of the bearing outer connecting piece extends to form a circle of flash; the flash covers the step and is in clearance fit with the step.
Preferably, the central through hole of the rear shell is a tapered hole, and the large head end of the tapered hole is communicated with the cavity of the front shell and is used for injecting steel wire fastening glue.
In the utility model, the front shell is connected with the rear shell by screw thread, and is locked by the stop screw to form a glue filling cavity; the bearing, the bearing external connection piece, the bearing internal connection piece, the pull rod connecting piece, the pull rod, the shaft snap ring, the M10 hexagon socket head cap screw and the M16 hexagon socket head cap screw form a back-twist mechanism; two plug holes are formed in the rear shell, glue is injected into the rear plug hole, air is exhausted from the front plug hole, the glue injection condition is observed, and after the glue is injected, the two plugs are glued and screwed down.
In the utility model, the rear shell is a cylindrical body with a through hole, and the front shell is a cylindrical body with a blind hole (cavity); the bearing inner connecting piece is a cylindrical body with a central hole, the bearing outer connecting piece is of a circular truncated cone structure, and the central hole is used for fixing the bearing; the pull rod connecting piece is of a circular truncated cone structure, and the pull rod is fixed at the center of the pull rod connecting piece by using an M16 hexagon socket head cap screw; the utility model provides an each part simple structure, the machining degree of difficulty is less, equal workable shaping.
In the utility model, the armor steel wire of the submarine cable is tightly connected with the armor steel wire through the steel wire fastening glue in the glue filling cavity to bear the whole traction force of the submarine cable, and no other structure is arranged in the glue filling cavity, so that the outer diameter of the traction head is minimized, and the construction difficulty is reduced; the end part of the submarine cable body is sealed with lead to isolate the seawater from entering; the back-twist mechanism prevents the traction head and the submarine cable from being affected by torsion and prevents silt from being blocked.
Drawings
Fig. 1 is a schematic external structural view of the present invention;
FIG. 2 is a sectional view taken along line B-B of FIG. 1;
in the figure: the bearing comprises a 1M 10 inner hexagonal screw, a 2M 16 inner hexagonal screw, a 3 rear shell, a central through hole of a 3-1 rear shell, a 4 front shell, a cavity of a 4-1 front shell, a step of a 4-2 front shell, a 5 plug, a 6 bearing outer connecting piece, a flange of the 6-1 bearing outer connecting piece, a 7 bearing inner connecting piece, an 8 pull rod connecting piece, a 9 pull rod, a 10 shaft retaining ring, a 11 stop screw and a 12 bearing.
Detailed Description
As shown in the figure, the submarine cable traction head comprises a rear shell 3, a front shell 4 and a pull rod 9 which are sequentially connected, wherein the rear shell is provided with a central through hole 3-1, one end of the front shell is provided with a cavity 4-1, and the other end of the front shell is of a closed structure. The rear shell is in threaded connection with the front shell and is fixed through a set screw 11; the central through hole is a tapered hole, and the large head end of the tapered hole is communicated with the cylindrical cavity of the front shell to form a glue pouring cavity. The hole wall of the rear shell is provided with two plug holes and is provided with a plug 5.
The pull rod 9 is fixedly connected with a pull rod connecting piece 8 through an M16 hexagon socket head cap screw 2, and the pull rod connecting piece 8 is fixedly connected with the bearing outer connecting piece 6 through an M10 hexagon socket head cap screw 1; the bearing inner coupling 7 is fixedly connected with the inner ring of the bearing 12 through a shaft snap ring 10, and the bearing inner coupling 7 is fixedly connected with the closed end of the front shell through an M16 hexagon socket head cap screw 2. The pull rod connecting piece, the bearing outer connecting piece and the closed end of the front shell form a conical surface body.
The outer side wall of the closed end of the front shell is provided with a circle of concave steps 4-2, the bearing outer connecting piece is arranged at one end contacted with the steps, the outer side wall of the bearing outer connecting piece extends to form a circle of fins 6-1, and the fins cover the steps and are in clearance fit.
The utility model discloses when using, according to following step:
1) the end part of the submarine cable penetrates through the central through hole of the rear shell, and the submarine cable is wrapped at a fixed distance (namely, at a certain position of the part where the submarine cable penetrates out).
2) At fixed distance department until the submarine cable end of wearing out, earlier peel off PP rope (the submarine cable is outer), expose the armor steel wire, then peel off the armor steel wire, with armor steel wire loudspeaker form scatter, impurity on the clean armor steel wire.
3) And sealing lead at the end part of the submarine cable with the armored steel wires scattered in a trumpet shape.
4) And pulling back the submarine cable to enable the submarine cable to be clamped and fixed in the conical central through hole of the rear shell in a wrapping mode, and the armored steel wires are left at 200mm and are scattered in a horn shape.
5) The bearing, the bearing outer connecting piece, the bearing inner connecting piece, the pull rod, the shaft retaining ring, the M10 hexagon socket head cap screw, the M16 hexagon socket head cap screw and the front shell are assembled according to the structure shown in the drawing.
6) The assembled front shell and the assembled rear shell are connected in threaded fit through a wrench, and the stop screw is glued and locked.
7) The fixed contact position in the back-twist mechanism is sealed by adopting sealing paste.
8) And steel wire fastening glue (adopting British brand wire lock) is injected into the cavity through the rear plug hole of the rear shell, when the steel wire fastening glue is observed to overflow the front plug hole of the rear shell, glue injection is stopped, the two plugs are glued and locked, and the steel wire fastening glue can be used after being cured.
The utility model has the advantages of it is following:
1) the submarine cable traction head and the submarine cable are not affected by torsion, and the back-twist mechanism can prevent silt from being blocked through special structural design and sealing paste.
2) The submarine cable traction head is connected with the armored steel wire in a fastening mode through the steel wire filling fastening glue, traction force is borne, and no other structure exists in the glue filling cavity, so that the overall outer diameter of the submarine cable traction head is minimized, and the construction difficulty is reduced.
3) The submarine cable traction head adopts a mode of fixedly connecting the steel wire filling fastening glue and the armored steel wire, and has a water-blocking effect.
4) The submarine cable traction head is simple in design, relatively low in corresponding machining difficulty and relatively low in cost.
Claims (7)
1. The submarine cable traction head is characterized by comprising a rear shell, a front shell and a pull rod which are sequentially connected, wherein the rear shell is provided with a central through hole, one end of the front shell is provided with a cavity, and the other end of the front shell is of a closed structure; the rear shell is in threaded connection with the front shell, and a central through hole of the rear shell is communicated with a cavity of the front shell to form a glue pouring cavity; the pull rod is rotatably connected with the outer wall of the closed end of the front shell through a bearing, and the hole wall of the rear shell is provided with two plug holes and is provided with a plug.
2. A submarine cable pulling head according to claim 1, wherein the front housing has one end with a cavity, the outer side wall of the front housing is provided with external threads, the rear housing has an inner side wall at the end connected to the front housing, and the front and rear housings are screwed together by the internal and external threads and fixed by a set screw.
3. A submarine cable pulling head according to claim 1, wherein the pull rod is fixedly connected to the outer race of the bearing via a pull rod connector and a bearing outer connector, and the inner race of the bearing is fixedly connected to the closed end of the front housing via a bearing inner connector.
4. The submarine cable traction head according to claim 3, wherein the pull rod is fixedly connected with the pull rod connecting piece through a screw, the pull rod connecting piece is fixedly connected with the bearing outer connecting piece through a screw, and the bearing is fixedly arranged in a central hole of the bearing outer connecting piece; the bearing inner connecting piece is fixedly connected with the inner ring of the bearing through a shaft retaining ring, and the bearing inner connecting piece is fixedly connected with the closed end of the front shell through a screw.
5. A submarine cable pulling head according to claim 3 or 4, wherein the pull rod attachment member, the bearing outer coupling member and the closed end of the front housing form a conical surface.
6. A submarine cable pulling head according to claim 5, wherein the outer side wall of the closed end of the front housing is provided with a concave step, the bearing outer coupling member is provided with a flange extending from the outer side wall thereof at the end contacting with the step; the flash covers the step and is in clearance fit with the step.
7. The submarine cable pulling head according to claim 1, wherein the central through hole of the rear housing is a tapered hole, and the large head end of the tapered hole is communicated with the cavity of the front housing for injecting the steel wire fastening glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921026077.0U CN210111485U (en) | 2019-07-03 | 2019-07-03 | Submarine cable traction head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921026077.0U CN210111485U (en) | 2019-07-03 | 2019-07-03 | Submarine cable traction head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210111485U true CN210111485U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921026077.0U Active CN210111485U (en) | 2019-07-03 | 2019-07-03 | Submarine cable traction head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210111485U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114578A (en) * | 2021-10-30 | 2022-03-01 | 中石化石油工程技术服务有限公司 | Submarine cable towing head and application thereof |
| CN117367961A (en) * | 2023-10-19 | 2024-01-09 | 江苏亨通高压海缆有限公司 | Reusable glue-pouring type pull head and method for using same in vertical detector |
-
2019
- 2019-07-03 CN CN201921026077.0U patent/CN210111485U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114578A (en) * | 2021-10-30 | 2022-03-01 | 中石化石油工程技术服务有限公司 | Submarine cable towing head and application thereof |
| CN117367961A (en) * | 2023-10-19 | 2024-01-09 | 江苏亨通高压海缆有限公司 | Reusable glue-pouring type pull head and method for using same in vertical detector |
| CN117367961B (en) * | 2023-10-19 | 2024-05-10 | 江苏亨通高压海缆有限公司 | Reusable glue-pouring type pull head and method for using same in vertical detector |
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