CN114852255B - Light torpedo anchor - Google Patents

Light torpedo anchor Download PDF

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Publication number
CN114852255B
CN114852255B CN202210584029.3A CN202210584029A CN114852255B CN 114852255 B CN114852255 B CN 114852255B CN 202210584029 A CN202210584029 A CN 202210584029A CN 114852255 B CN114852255 B CN 114852255B
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China
Prior art keywords
anchor
flower
blade
fish
tail
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CN202210584029.3A
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CN114852255A (en
Inventor
王丽艳
尹崇山
竺明星
李小娟
农珍珍
林启航
杨志超
吴晗
蒋飞
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Jiangsu University of Science and Technology
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Jiangsu University of Science and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24Anchors
    • B63B21/26Anchors securing to bed
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a light fish-strike anchor, which comprises an anchor body with a tail wing rod, wherein anchor flower blades are uniformly distributed on the periphery of the anchor body, the front end of each anchor flower blade is in an outward inclined blade shape, and the outer side surface of each anchor flower blade is provided with a weakening groove which is convenient for bending and overturning the anchor flower blade in the process of penetrating the anchor flower blade into a seabed; the lateral component force of the soil resistance when the anchor flower blade penetrates into the seabed can deform, roll and insert the anchor flower blade into the surrounding soil, so that the vertical and horizontal pulling resistance of the torpedo anchor is greatly enhanced; the weight and the volume of the fish mine anchor are reduced compared with the traditional fish mine anchor, the cost is reduced, the fish mine anchor is convenient to transport and use, and the fish mine anchor is simple to manufacture and convenient to refit the existing fish mine anchor.

Description

Light torpedo anchor
Technical Field
The invention relates to a torpedo anchor, in particular to a light torpedo anchor based on a flowering bomb principle.
Background
With the continuous development of open sea oil and gas resources and marine minerals, the strategic status of open sea resources is becoming more important. China is a major country with oil and gas requirements, and about 35 hundred million barrels of oil are imported to foreign countries in 2021. While there are at least 230 hundred million tons of petroleum which have been examined in south China, and the second Bos bay is called, natural gas and mineral reserves are also extremely abundant. In recent years, the development of marine oil and gas resources is gradually changed from shallow sea to deep sea. The fixed platform is generally only suitable for shallow sea due to the rising of cost along with the depth, and a floating platform with stronger applicability is mostly adopted in deep sea areas. The floating platform supports the weight of the upper part of the floating platform by means of the buoyancy of the floating platform, and the floating platform is anchored and positioned by a mooring system; the mooring system plays a critical role in the operation safety of the deep sea floating structure as an integral part of the deep sea floating structure. The fish anchor is a dynamic installation anchor which appears in recent years, has the advantages of no need of various auxiliary devices, simple installation period, low economic cost and less influence of installation cost along with the increase of water depth compared with other anchor types, and is widely considered as one of deep sea anchor foundations with application prospect.
The flowering bullet is also called as Damh bullet, which is a special bullet with killing power beneficial to the unique design of bullet. When a high-speed flying Damh hits a living target, the warhead is subject to a great resistance due to the fact that the body tissue is much denser than air. Because lead is softer and has certain mobility, the exposed lead at the bullet point can be deformed at first, and then the quilt around the bullet point is strutted and torn, and the quilt which is opened like petals can be continuously deformed backwards and rolled up due to the resistance of human tissues, and the diameter of the bullet can become larger, so that the soft tissues are greatly killed. The wood has water-absorbing expansibility, wherein oak also has strength and toughness, so that the red wine bottle is usually made of oak as a bottle stopper material, and the bottle mouth is sealed after being expanded by utilizing the characteristics of the oak.
There have been many attempts in China to strengthen the bearing capacity of the fish-mine anchor by changing the physical structure, mainly comprising the steps of adding an electric blade at the anchor head, adding a hydraulic impactor in the anchor body, increasing the penetration depth by carrying out secondary penetration through negative poisson ratio materials and internal anchor rods, arranging a puncture device in the anchor body, arranging a tail fin local opening and extending structure, and the like, and increasing the contact area between the fish-mine anchor and soil. The initial aim of the invention is to create a simple anchoring structure which only depends on gravitational potential energy to penetrate into soil, the existing method is mainly realized by secondary force application or preloaded electric energy equipment of the anchor chain after penetrating, the weight and the volume of the fish anchor are increased, the manufacturing cost is increased, the marine environment is known as complex, and the implementation work of the secondary force application or the electric energy equipment in the ocean is quite limited.
Disclosure of Invention
The invention aims to: the invention aims to provide the light fish anchor based on the flowering bomb principle, which can improve the pulling resistance, reduce the cost and has a simple structure.
The technical scheme is as follows: the invention relates to a light fish and lightning anchor, which comprises an anchor body with a tail wing rod, anchor flower blades are uniformly distributed on the periphery of the anchor body, the front ends of the anchor flower blades are in an outward inclined blade shape, and the outer side surfaces of the anchor flower blades are provided with weakening grooves which are convenient for the anchor flower blades to bend and turn over in the process of penetrating the anchor flower blades into a seabed.
Preferably, expansion plugboards are uniformly distributed on the periphery of the anchor body.
Preferably, an embedding groove is formed in the circumferential side of the anchor body, and the expansion inserting plate is embedded in the embedding groove.
Preferably, the bottom end of the anchor flower blade is connected with the anchor body, and the anchor flower blade and the anchor body keep a horizontal distance.
Preferably, the anchor flower edge is made of a high-toughness material.
Preferably, the anchor body is cylindrical, and is contracted in diameter near the bottom and has the same diameter as the tail rod when reaching the tail end, so that better power profile is obtained and shock resistance is reduced.
Preferably, the fin pole includes steel pole and fin, the fin is a plurality of trapezoidal or triangle-shaped steel sheets, and the equipartition is at the steel pole tail end, imitates the extension fin design of mortar bullet, prevents that the fish thunderbolt from falling down in-process rotatory unstability to increase and increase the area of contact with the soil body and increase the bearing capacity, combine better fluid appearance with the afterbody form of anchor body simultaneously.
Preferably, the expansion plugboard is an oak board, and can absorb water and expand after the anchor body is penetrated into the soil body, so that the friction force between the fish anchor and the soil body is enhanced, and the pulling resistance is improved.
The beneficial effects are that: compared with the prior art, the invention has the following remarkable advantages: 1. the lateral component force of the soil resistance when the anchor flower blade penetrates into the soil can deform, roll and insert the anchor flower blade into the surrounding soil, so that the vertical pulling resistance of the fish-mine anchor is greatly enhanced, and meanwhile, the horizontal tensile moment is increased; 2. the weight and the volume of the fish mine anchor are reduced compared with those of the traditional fish mine anchor, so that the cost is reduced, and meanwhile, the fish mine anchor is convenient to transport and use; 3. the rear tail wing rod can strengthen the stability in the falling process and prevent the rolling instability in the falling process of the fish anchor; 4. can be prefabricated, has simple structure and is convenient for refitting the existing torpedo anchor.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic illustration of the penetration of the torpedo anchor of the present invention into the sea bed;
fig. 5 is a schematic view of the anchor blade structure of the present invention.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-3, the light fish-strike anchor of the invention comprises an anchor body 1, wherein the front end of the anchor body 1 is provided with an anchor tip 2, the tail end is connected with a tail wing rod 3, the periphery of the anchor body 1 is provided with an anchor flower blade 4 and an expansion inserting plate 5, the front end of the anchor flower blade 4 is in an outward inclined blade shape, and the outer side surface of the anchor flower blade is provided with a weakening groove 41 which is convenient for the anchor flower blade to bend and turn over in the process of penetrating the anchor flower blade into a seabed.
The anchor body 1 is cylindrical, has a height of 4-4.5 m, is contracted at a position which is more than 0.5m away from the bottom, has the same diameter as the tail wing rod 3 when reaching the tail end, and is convenient for obtaining better power appearance and reducing shock resistance. The anchor body 1 is equipped with the embedded groove that is used for embedding expansion picture peg 5 on the whole body, and embedded groove and anchor flower sword 4 staggered arrangement, expansion picture peg 5 is the oak board, can slowly absorb water and expand after the anchor body is penetrated into the soil body, strengthens the frictional force between fish thunder anchor and the soil body, improves the resistance to plucking. The angle of the tip of the anchor point 2 is smaller than 90 degrees.
As shown in fig. 2, the tail rod 3 includes a steel rod 31 and a tail fin 32, where the tail fin 32 is four trapezoidal or triangular steel sheets, the thickness is 0.1-0.15 m, and the tail fin is uniformly arranged at the tail end of the steel rod 31 to simulate the extended tail fin design of a mortar shell, prevent the rotation instability in the falling process of a fish-mine anchor, increase the contact area with soil body, increase the bearing capacity, and combine with the tail shape of the anchor body to obtain a better fluid shape.
As shown in fig. 5, the anchor flower blade 4 is 3-3.5 m long and 0.3-0.4 m thick, the bottom end is connected with the anchor body 1 through a cylindrical casting 42, the horizontal distance between the bottom end and the anchor body 1 is 0.1-0.2 m, and three weakening grooves 41 with half the depth are formed in the outer side face. The anchor flower blade 4 is made of high-toughness materials such as brass alloy or cupronickel alloy.
In the process of the falling of the torpedo anchor, the sharp blade-shaped structure at the front end of the anchor flower blade 4 ensures that the torpedo anchor cannot be outwards turned up when the torpedo anchor just hits the soil body and the kinetic energy is maximum, but starts to be turned up after the torpedo anchor falls to a certain depth and the kinetic energy is attenuated. Since the sacrificial portion penetrates with kinetic energy to bend the anchor blades, it is necessary to adjust the number of anchor blades according to the depth of the anchor sea.
As shown in fig. 4, the method for using the fish anchor of the present invention comprises the following steps:
(1) The torpedo anchor main body structure is transported to a target sea area by a ship, according to the depth data of the relevant sea area, an anchor flower blade 4 is welded on an anchor body 1, the falling kinetic energy is small when the depth is shallow, a pair of the anchor flower blades is welded, the falling kinetic energy is human when the depth is deep, two pairs of the anchor flower blades are welded, an anchor tip 2 and a tail wing rod 3 are assembled, and an expansion inserting plate 5 is embedded;
(2) Connecting the ship anchor chain with the tail of the torpedo anchor, and releasing the torpedo anchor to enable the torpedo anchor to vertically fall in the sea;
(3) The fish anchor reaches the seabed soil body and is penetrated into the seabed soil body, and the anchor flower blade is transversely inserted into the peripheral soil body by outwards turning due to the action of the blocking force in the penetrating process;
(4) Pulling an anchor chain by using a hinge device to perform a pull-out resistance test on the torpedo anchor, and respectively pulling the torpedo anchor by using vertical pulling force and four oblique pulling forces in different directions, wherein the pulling force is determined according to the wave load and wind load data of the sea area;
(5) If the test is passed, the tail part of the anchor chain is connected with a floating structure arranged at the upper part;
(6) If the test cannot be passed, the torpedo anchor is pulled back, and the steps (2) - (4) are repeated after the straightening anchor flower blade 4 is corrected by a hydraulic press until the test is passed.

Claims (4)

1. The light fish and lightning anchor comprises an anchor body (1) with a tail wing rod (3), and is characterized in that anchor flower blades (4) are uniformly distributed on the periphery of the anchor body (1), the front end of each anchor flower blade (4) is in an outward inclined blade shape, and a weakening groove (41) which is convenient for the anchor flower blades to bend and turn over in the process of penetrating the anchor flower blades into a seabed is formed in the outer side surface of the anchor flower blades; the rear end of the anchor flower blade (4) is connected with the anchor body (1), and the anchor flower blade (4) and the anchor body (1) keep a horizontal distance; the anchor flower blade (4) is made of high-toughness materials; expansion inserting plates (5) are uniformly distributed on the periphery of the anchor body (1); an embedded groove is formed in the peripheral side of the anchor body (1), and the expansion inserting plate (5) is arranged in the embedded groove.
2. Light-weight fish-mine anchor according to claim 1, characterized in that the anchor body (1) is cylindrical, shrinking in diameter near the bottom, to the tail end, the same diameter as the tail rod (3).
3. The light fish mine anchor according to claim 1, wherein the tail rod (3) comprises a steel rod (31) and a tail (32), and the tail (32) is a plurality of trapezoid or triangle steel sheets and is uniformly arranged at the tail end of the steel rod (31).
4. Light fish anchor according to claim 1, characterized in that the expansion insert (5) is an oak plate.
CN202210584029.3A 2022-05-26 2022-05-26 Light torpedo anchor Active CN114852255B (en)

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Application Number Priority Date Filing Date Title
CN202210584029.3A CN114852255B (en) 2022-05-26 2022-05-26 Light torpedo anchor

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Application Number Priority Date Filing Date Title
CN202210584029.3A CN114852255B (en) 2022-05-26 2022-05-26 Light torpedo anchor

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CN114852255B true CN114852255B (en) 2023-11-21

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418851A1 (en) * 1978-03-03 1979-09-28 Richel Pierre Flexible metallic stake post anchor - has wings at bottom forming retaining spring to resist extraction
CN1856626A (en) * 2003-08-06 2006-11-01 藤田保宏 Pile for civil engineering work
CN101012650A (en) * 2007-02-08 2007-08-08 徐国彬 Pressing-resistant plucking-resistant pile and forming method thereof
JP3134898U (en) * 2007-05-30 2007-08-30 良三 太田 Concrete pile
CN106567384A (en) * 2016-11-14 2017-04-19 合肥工业大学 Fishbone-shaped anchor rod
CN107905224A (en) * 2017-11-19 2018-04-13 三峡大学 It is a kind of to expand head in perforate steel pipe to improve the anchor structure of anti-pulling of anchor bar and construction method using expanding cement
CN111994207A (en) * 2020-09-23 2020-11-27 大连理工大学 Torpedo anchor with additional anchor body and additional anchor body capable of being unfolded and turned outwards
CN112078728A (en) * 2020-09-14 2020-12-15 大连理工大学 Novel torpedo anchor based on bionics and construction method thereof
CN214695578U (en) * 2021-02-05 2021-11-12 衡水道一工程材料有限公司 Multi-fin ground anchor blind rivet
CN114435538A (en) * 2022-01-26 2022-05-06 南京林业大学 Device and method for reversely pulling unshelling growth type Leptoderman yu

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2947889A1 (en) * 2009-07-08 2011-01-14 Legris Sas INSERTION TIP FOR CONNECTION OR ANALOG WITH LOW EMERGENCY FEED

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418851A1 (en) * 1978-03-03 1979-09-28 Richel Pierre Flexible metallic stake post anchor - has wings at bottom forming retaining spring to resist extraction
CN1856626A (en) * 2003-08-06 2006-11-01 藤田保宏 Pile for civil engineering work
CN101012650A (en) * 2007-02-08 2007-08-08 徐国彬 Pressing-resistant plucking-resistant pile and forming method thereof
JP3134898U (en) * 2007-05-30 2007-08-30 良三 太田 Concrete pile
CN106567384A (en) * 2016-11-14 2017-04-19 合肥工业大学 Fishbone-shaped anchor rod
CN107905224A (en) * 2017-11-19 2018-04-13 三峡大学 It is a kind of to expand head in perforate steel pipe to improve the anchor structure of anti-pulling of anchor bar and construction method using expanding cement
CN112078728A (en) * 2020-09-14 2020-12-15 大连理工大学 Novel torpedo anchor based on bionics and construction method thereof
CN111994207A (en) * 2020-09-23 2020-11-27 大连理工大学 Torpedo anchor with additional anchor body and additional anchor body capable of being unfolded and turned outwards
CN214695578U (en) * 2021-02-05 2021-11-12 衡水道一工程材料有限公司 Multi-fin ground anchor blind rivet
CN114435538A (en) * 2022-01-26 2022-05-06 南京林业大学 Device and method for reversely pulling unshelling growth type Leptoderman yu

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