CN111203499A - Towed submarine cable cutting device and cable cutting method thereof - Google Patents
Towed submarine cable cutting device and cable cutting method thereof Download PDFInfo
- Publication number
- CN111203499A CN111203499A CN202010023556.8A CN202010023556A CN111203499A CN 111203499 A CN111203499 A CN 111203499A CN 202010023556 A CN202010023556 A CN 202010023556A CN 111203499 A CN111203499 A CN 111203499A
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- Prior art keywords
- cutting
- anchor
- cable
- fixed
- iron
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F23/00—Feeding wire in wire-working machines or apparatus
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- 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
- H02G1/005—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for cutting cables or wires, or splicing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a dragging type submarine cable cutting device and a cable cutting method thereof. There is a need for a fast, low cost cutting apparatus for submarine cables. The towing ring is fixed at one end of the main rod, and two wing plates are fixed at the other end of the main rod; one side surface of each wing plate is fixedly provided with an anchor hook at the symmetrical center line, and the other side surface of each wing plate is also fixedly provided with an anchor hook at the symmetrical center line; cutting knives are fixed on the inner sides of the two anchor hooks, a guide iron is arranged between each cutting knife and the two wing plates, and the guide iron is fixed with the two wing plates; one end of the iron chain is fixed with a tension sensor fixed on the tug boat, and the other end of the iron chain is fixed with the iron chain of the cutting anchor. The tugboat provided by the invention has the advantages that the cutting anchor is dragged by the iron chain to cut the cable, the cable is directly hooked by the cutting anchor on the seabed, the cable is quickly cut off, whether the cable is cut or not is confirmed from two aspects of detecting whether residual copper scraps exist on the cutting knife or not after the pulling force sensor and the cutting anchor are recovered, and the reliability is high.
Description
Technical Field
The invention belongs to the technical field of ocean engineering, and particularly relates to a dragging type submarine cable cutting device and a cable cutting method thereof.
Background
With the development of science and technology, more and more submarine cables and communication cables are laid on the seabed of all parts of the world, the cables need to be cut off in some emergency situations, the traditional cutting mode needs to detect the position of the cables firstly, then excavate the cables and salvage the cables for cutting, the process is complex, a lot of expensive equipment is needed, and the cost is too high. There is a need for a fast, low cost cutting apparatus for submarine cables to accomplish this task.
Through the search of the prior art documents, the following results are found: patent No. 200910039930.7 discloses a marine drag type cutting device, which is a four-hook cutting device, requires an underwater motor to be installed to supply power to the device, has a high manufacturing cost, and cannot know the completion state of cutting work without a cable cutting completion determination device. Patent No. 201310404115.2 discloses a fishing and cutting system and method for deep sea cable, in which the anchor body is a single hook-shaped anchor body, and the cable cannot be hooked by the anchor body after the anchor body is thrown into the sea bottom.
Therefore, a new cutting device and a cable cutting method thereof are needed to complete the submarine cable cutting operation.
Disclosure of Invention
The invention aims to provide a dragging type submarine cable cutting device and a cable cutting method thereof, aiming at the defects of the existing submarine cable cutting device.
The invention is realized by the following technical scheme:
the invention relates to a towed submarine cable cutting device, which comprises a tugboat, a tension sensor, an iron chain and a cutting anchor; the cutting anchor consists of a drag ring, a main rod, wing plates, a guide iron, a cutting knife and an anchor hook; the towing ring is fixed at one end of the main rod, and two wing plates which are symmetrically arranged and tightly attached are fixed at the other end of the main rod; one side surface of each wing plate is fixedly provided with an anchor hook at the symmetrical center line, the other side surface of each wing plate is also fixedly provided with an anchor hook at the symmetrical center line, and the two anchor hooks are aligned at the axial position of the main rod; cutting knives are fixed on the inner sides of the two anchor hooks, a guide iron is arranged between each cutting knife and the two wing plates, and the guide iron is fixed with the two wing plates; one end of the iron chain is fixed with a force measuring element of a tension sensor fixed on the tug boat, and the other end of the iron chain is fixed with the iron chain of the cutting anchor.
The cutting knife wholly be the several font, the cutting edge of cutting knife sets up towards the mobile jib.
The cable cutting method of the dragging type submarine cable cutting device comprises the following specific steps:
the tug runs to one side of the position where the cable is placed in the sea area, the horizontal distance between the tug and the cable exceeds three times of the water depth, and the cutting anchor is placed on the sea bottom; the tugboat runs towards the other side of the cable along the direction perpendicular to the cable, and provides dragging force for the cutting anchor through the iron chain, and the reading of the tension sensor begins to increase; the main rod is driven to move when the towing ring of the cutting anchor is towed by a towing boat, two wing plates keep that one of two anchor hooks of the cutting anchor is always vertical to the seabed, the anchor hooks of the cutting anchor are ensured to be penetrated into sediment on the surface layer of the seabed, and the guide iron prevents a cable from being clamped between the cutting knife and the main rod, so that the anchor hooks can be ensured to smoothly hook the cable; after the tow boat drove the anchor hook of cutting anchor and hooks the cable, continue to advance along with the tow boat, the cable is sent into the cutting knife that is the several fonts along leading the iron, and along with the constantly increase of the power of cutting knife effect on the cable, pulling force reading constantly increases on the force sensor, and when pulling force reading reduced suddenly on force sensor, it has been cut off to show the cable, and cable cutting operation is accomplished. After the cutting anchor is recovered, whether residual copper scraps exist on the cutting knife or not is checked, so that whether cable cutting is completed or not is further confirmed.
The invention has the following beneficial effects:
the invention realizes that the cutting anchor directly hooks the cable on the seabed and quickly cuts off the cable, and no extra power is needed for supplying power except for dragging by a tugboat. In the dragging process of the dragging ring of the cutting anchor by the dragging boat, two wing plates keep that one of two anchor hooks of the cutting anchor is perpendicular to the seabed, the anchor hook of the cutting anchor is ensured to be penetrated into seabed surface sediment, and the guide iron prevents a cable from being clamped between the cutting knife and the main rod, so that the anchor hook can be ensured to smoothly hook the cable; as the tug continues to advance, the cable is fed into the zigzag cutting knife along the guide iron. The invention confirms whether the cable cutting is finished or not from two aspects of detecting whether residual copper scraps exist on the cutting knife or not after the tension sensor and the recovery cutting anchor, and has strong reliability. The invention has the advantages of simple structure, low cost, light weight, convenient use and small use labor amount.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the cutting anchor of the present invention;
fig. 3 is a top view of fig. 2.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a towed submarine cable cutting apparatus includes a tug boat 1, a tension sensor 2, an iron chain 3, and a cutting anchor 4. One end of the iron chain 3 is fixed with a force measuring element of a tension sensor 2 fixed on the tug 1, and the other end is fixed with a cutting anchor 4; the function of the tug 1 is to provide the cutting anchor 4 with a drag force, the function of the tension sensor 2 is to measure the resistance of the cutting anchor, and the function of the iron chain 3 is to transmit the drag force of the tug 1 to the cutting anchor 4.
As shown in fig. 2 and 3, the cutting anchor 4 is composed of a towing ring 4-1, a main rod 4-2, a wing plate 4-3, a guide iron 4-4, a cutting knife 4-5 and an anchor hook 4-6; the towing ring 4-1 is fixed at one end of the main rod 4-2, and the other end of the main rod 4-2 is fixed with two wing plates 4-3 which are symmetrically arranged and tightly attached; one side surface of each wing plate 4-3 is fixedly provided with an anchor hook 4-6 at the symmetrical center line, the other side surface is also fixedly provided with an anchor hook 4-6 at the symmetrical center line, and the two anchor hooks 4-6 are aligned at the axial position of the main rod 4-2; the inner sides of the two anchor hooks 4-6 are both fixed with a cutting knife 4-5, a guide iron 4-4 is arranged between each cutting knife 4-5 and the two wing plates 4-3, and the guide iron 4-4 is fixed with the two wing plates 4-3; the cutting knife 4-5 is in a shape of a Chinese character 'ji', the cutting edge faces the main rod 4-2, and the function is to cut off the submarine cable; the iron chain 3 is fixed on the towing ring 4-1. The main rod 4-2 has the function of transmitting the tension of the iron chain, and the two wing plates 4-3 have the function of keeping one of the two anchor hooks 4-6 perpendicular to the sea bottom when the cutting anchor is dragged on the sea bottom so that the cutting anchor can penetrate into the surface sediment on the sea bottom. The function of the guide iron 4-4 is to prevent the cable from being clamped between the cutting knife and the main rod 4-2; the function of the two anchor hooks 4-6 is to hook the submarine cable so that the submarine cable is cut into the cutting knife 4-5.
The cable cutting method of the dragging type submarine cable cutting device comprises the following specific steps:
the tug 1 is driven to one side of the position where the cable is placed in the sea area, the horizontal distance between the tug and the cable exceeds three times of the water depth, and the cutting anchor 4 is placed into the sea bottom; the tug boat 1 runs towards the other side of the cable along the direction perpendicular to the cable, the iron chain 3 provides dragging force for the cutting anchor 4, and the reading of the tension sensor 2 begins to increase; the towing ring 4-1 of the cutting anchor 4 drives the main rod 4-2 to move in the towing process of the towing boat 1, two wing plates 4-3 keep one of two anchor hooks 4-6 of the cutting anchor vertical to the seabed, the anchor hook 4-6 of the cutting anchor is ensured to be penetrated into the sediment on the surface layer of the seabed, and the guide iron 4-4 prevents the cable from being clamped between the cutting knife and the main rod 4-2, so that the anchor hook 4-6 can be ensured to smoothly hook the cable; after the tug 1 drives the anchor hooks 4-6 of the cutting anchors 4 to hook the cable, the cable is conveyed into the cutting knife 4-5 in a shape like a Chinese character 'ji' along with the further advance of the tug along with the guide iron 4-4, the tension reading on the tension sensor is continuously increased along with the continuous increase of the force acted on the cable by the cutting knife 4-5, and when the tension reading on the tension sensor 2 is suddenly reduced, the cable is cut off, and the cable cutting operation is completed. Because throw the cutting anchor once and only cut a cable, and have the copper wire in the cable, the cable is by cutting the back copper cuttings and must remain on the cutting knife, consequently, retrieves the cutting anchor after, whether has remaining copper cuttings on the inspection cutting knife to whether further confirm the cable cutting and accomplish.
Claims (3)
1. The utility model provides a towed submarine cable cutting device, includes tug, force sensor, iron chain and cutting anchor, its characterized in that: the cutting anchor consists of a drag ring, a main rod, wing plates, a guide iron, a cutting knife and an anchor hook; the towing ring is fixed at one end of the main rod, and two wing plates which are symmetrically arranged and tightly attached are fixed at the other end of the main rod; one side surface of each wing plate is fixedly provided with an anchor hook at the symmetrical center line, the other side surface of each wing plate is also fixedly provided with an anchor hook at the symmetrical center line, and the two anchor hooks are aligned at the axial position of the main rod; cutting knives are fixed on the inner sides of the two anchor hooks, a guide iron is arranged between each cutting knife and the two wing plates, and the guide iron is fixed with the two wing plates; one end of the iron chain is fixed with a force measuring element of a tension sensor fixed on the tug boat, and the other end of the iron chain is fixed with the iron chain of the cutting anchor.
2. A towed submarine cable cutting apparatus according to claim 1, wherein: the cutting knife wholly be the several font, the cutting edge of cutting knife sets up towards the mobile jib.
3. The cable cutting method of a towed submarine cable cutting apparatus according to claim 2, wherein: the method comprises the following specific steps:
the tug runs to one side of the position where the cable is placed in the sea area, the horizontal distance between the tug and the cable exceeds three times of the water depth, and the cutting anchor is placed on the sea bottom; the tugboat runs towards the other side of the cable along the direction perpendicular to the cable, and provides dragging force for the cutting anchor through the iron chain, and the reading of the tension sensor begins to increase; the main rod is driven to move when the towing ring of the cutting anchor is towed by a towing boat, two wing plates keep that one of two anchor hooks of the cutting anchor is always vertical to the seabed, the anchor hooks of the cutting anchor are ensured to be penetrated into sediment on the surface layer of the seabed, and the guide iron prevents a cable from being clamped between the cutting knife and the main rod, so that the anchor hooks can be ensured to smoothly hook the cable; after the tugboat drives the anchor hook of the cutting anchor to hook the cable, the cable is conveyed into the cutter in the shape of a Chinese character ji along the guide iron along with the further advance of the tugboat, the tension reading on the tension sensor is continuously increased along with the continuous increase of the force acted on the cable by the cutter, and when the tension reading on the tension sensor is suddenly reduced, the cable is cut off, and the cable cutting operation is finished; after the cutting anchor is recovered, whether residual copper scraps exist on the cutting knife or not is checked, so that whether cable cutting is completed or not is further confirmed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023556.8A CN111203499A (en) | 2020-01-09 | 2020-01-09 | Towed submarine cable cutting device and cable cutting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023556.8A CN111203499A (en) | 2020-01-09 | 2020-01-09 | Towed submarine cable cutting device and cable cutting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111203499A true CN111203499A (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010023556.8A Pending CN111203499A (en) | 2020-01-09 | 2020-01-09 | Towed submarine cable cutting device and cable cutting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911290A (en) * | 2021-11-12 | 2022-01-11 | 中国科学院海洋研究所 | Fishing device and method for floating-loss type seabed base observation system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385584A (en) * | 1981-07-15 | 1983-05-31 | Simpson Iii Lee S | Boat anchor |
| CN101585192A (en) * | 2009-06-02 | 2009-11-25 | 何红辉 | Ocean towing type cutting device |
| CN201703556U (en) * | 2010-03-23 | 2011-01-12 | 中英海底系统有限公司 | 3m plough deep-cut anchor |
| CN201864003U (en) * | 2010-11-15 | 2011-06-15 | 江苏扬远船舶设备铸造有限公司 | Plough-shaped fluke with flanks |
| CN103490327A (en) * | 2013-09-06 | 2014-01-01 | 中英海底系统有限公司 | Integrated deep sea cable fishing and cutting system and method |
| CN203996785U (en) * | 2014-06-12 | 2014-12-10 | 江苏扬远船舶设备铸造有限公司 | A kind of Ma Shi high holding power anchor |
| CN205819485U (en) * | 2016-06-02 | 2016-12-21 | 章红忠 | A kind of ship anchor |
-
2020
- 2020-01-09 CN CN202010023556.8A patent/CN111203499A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385584A (en) * | 1981-07-15 | 1983-05-31 | Simpson Iii Lee S | Boat anchor |
| CN101585192A (en) * | 2009-06-02 | 2009-11-25 | 何红辉 | Ocean towing type cutting device |
| CN201703556U (en) * | 2010-03-23 | 2011-01-12 | 中英海底系统有限公司 | 3m plough deep-cut anchor |
| CN201864003U (en) * | 2010-11-15 | 2011-06-15 | 江苏扬远船舶设备铸造有限公司 | Plough-shaped fluke with flanks |
| CN103490327A (en) * | 2013-09-06 | 2014-01-01 | 中英海底系统有限公司 | Integrated deep sea cable fishing and cutting system and method |
| CN203996785U (en) * | 2014-06-12 | 2014-12-10 | 江苏扬远船舶设备铸造有限公司 | A kind of Ma Shi high holding power anchor |
| CN205819485U (en) * | 2016-06-02 | 2016-12-21 | 章红忠 | A kind of ship anchor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911290A (en) * | 2021-11-12 | 2022-01-11 | 中国科学院海洋研究所 | Fishing device and method for floating-loss type seabed base observation system |
| CN113911290B (en) * | 2021-11-12 | 2023-05-02 | 中国科学院海洋研究所 | Fishing device and method for bottom-sitting seabed-based observation system after floating loss |
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Application publication date: 20200529 |
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| RJ01 | Rejection of invention patent application after publication |