CN-121973886-A - Side-pulling type wing-spreading torpedo anchor with delayed guide cable

CN121973886ACN 121973886 ACN121973886 ACN 121973886ACN-121973886-A

Abstract

The invention provides a side-pulling type winged-spreading fish mine anchor with a delayed guide cable, and relates to the technical field of deep sea anchoring devices. The torpedo anchor comprises an anchor body, a wing-expanding type anti-pulling anchor plate, an anchor core, a first driving device, a second driving device and a cable guiding switching mechanism. The wing-spreading type anti-pulling anchor plate is rotationally connected with the anchor body. The first driving device drives the wing-spreading type anti-pulling anchor plate to turn over from the folding position to the unfolding position. The anchor core can extend out along the axial direction of the anchor body. The second driving device is arranged on the anchor body and drives the anchor core to extend out along the axis direction of the anchor body. The guide cable switching mechanism comprises a lifting lug, a steel cable, a guide cable groove and a releasable constraint piece. The cable guide groove is arranged at the periphery of the anchor body. The releasable constraint element is arranged in the cable guide groove and forms releasable fixation for the steel cable accommodated in the cable guide groove. After the releasable constraint is released, the steel cable is released from the guide groove and can slide relative to the guide groove, and the steel cable forms a lateral leading-out section at the lifting lug.

Inventors

WANG QINFENG
LIN ZHENGHAN
WU JUNHUANG
XIE SHUWEN
WANG DAI
HU ZHICHAO
ZHENG JIEQING

Assignees

集美大学

Dates

Publication Date: 20260505
Application Date: 20260213

Claims (10)

1. The side-pulling type winged fish mine anchor with the delayed guide cable is characterized by comprising an anchor body, a winged type anti-pulling anchor plate, an anchor core, a first driving device, a second driving device and a guide cable switching mechanism, wherein the anchor body is of a hollow sleeve structure and is provided with an anchor head end and an anchor tail end which are oppositely arranged, and a central line of the anchor body is defined as an anchor body axis; The first driving device is arranged in the anchor body and is in transmission connection with the wing-type anti-pulling anchor plate so as to drive the wing-type anti-pulling anchor plate to be switched from the folding position to the unfolding position; The second driving device is arranged in the anchor body and is in transmission connection with the anchor core so as to drive the anchor core to extend along the axis direction of the anchor body; The guide cable switching mechanism comprises a lifting lug, a steel cable, a guide cable groove and a releasable constraint piece, wherein the lifting lug is arranged on the outer side wall of the anchor body and positioned between the head end and the tail end of the anchor, and one end of the steel cable is connected with the lifting lug and led out from the lifting lug to the outer part of the anchor body; the releasable constraint piece is arranged in the cable guide groove and can form releasable fixation for the steel cable stored in the cable guide groove; After the releasable constraint piece is released, the steel cable is released from the cable guide groove and can slide relative to the cable guide groove, and the steel cable forms a lateral leading-out section at the lifting lug so that external pulling force acts on the side surface of the anchor body through the lifting lug; After fish mine anchor pricks into the seabed, the steel cable can be released to change the posture under the action of the tension of the steel cable, so that the plane of the wing-expanding type anti-pulling anchor plate in the extending state is perpendicular to the tension, and the anti-pulling capability is improved.
2. The side-pulling type wing-spreading fish mine anchor with the delayed guide cable according to claim 1, wherein the wing-spreading type anti-pulling anchor plate is a plate-shaped member, the plane is A, the plane in which the opening direction of the guide cable groove is B, and the included angle between A and B is 75-90 degrees; the extending wing type anti-pulling anchor plate is provided with a length direction extending along the long side of the extending wing type anti-pulling anchor plate, and when the extending wing type anti-pulling anchor plate is in an extending position, an included angle between the length direction and the axis of the anchor body is 75-90 degrees; the distance between the lifting lug and the anchor head end is smaller than the distance between the lifting lug and the anchor tail end.
3. The side-pulling winged fish mine anchor with delayed guide cable according to claim 2, wherein the angle between a and B is 90 degrees, and the angle between the length direction of the winged anti-pulling anchor plate and the axis of the anchor body is 90 degrees when the winged anti-pulling anchor plate is in the extended position; when the anchor core is in the extending state, the lifting lug is positioned at the position of three-tenth to four-tenth of the whole length.
4. The side-pulling winged fish mine anchor with delayed fairleads of claim 1 wherein the releasable restraint is a layer of water-soluble material that fills the fairlead and encapsulates the wire rope received in the fairlead, and wherein the water-soluble material releases the wire rope from the fairlead and effects slippage of the wire rope after dissolution in a seawater environment.
5. The side-pulling winged fish mine anchor with delayed guide cable of claim 4, wherein the water-soluble material layer is a polyvinyl alcohol PVA material layer, and the polyvinyl alcohol PVA material layer is cured and formed in the guide cable groove.
6. The side-pulling winged fish mine anchor with delayed fairlead of claim 1 wherein the diameter of the rope is D, the groove depth of the fairlead groove is d+e, and E = 0.5D, the groove width of the fairlead groove is d+f, and F = 0.25D, where D is the diameter of the rope, E is the reserved groove depth of the fairlead groove relative to the diameter of the rope, and F is the reserved groove width of the fairlead groove relative to the diameter of the rope.
7. The side-pulling winged fish mine anchor with delayed guide cable according to any one of claims 1 to 6, wherein the inner wall of the anchor body is provided with a guide member, and the anchor core is slidably engaged with the guide member to guide the extension in the axial direction of the anchor body; The limiting ring is matched with the anchor body to limit the maximum extending stroke of the anchor core along the axis direction of the anchor body.
8. The side-pulling winged fish mine anchor with delayed guide cable according to any one of claims 1 to 6, wherein the second driving device comprises a motor, a screw rod and an axial driving element, wherein the screw rod is arranged along the axis of the anchor body and is arranged in the anchor body, the axial driving element is matched with the screw rod, the motor is in transmission connection with the screw rod to drive the screw rod to rotate and drive the axial driving element to move along the axial direction of the screw rod, and the axial driving element is abutted or fixedly connected with the anchor core to transmit the axial displacement of the axial driving element to the anchor core; The first driving device comprises a first nut block and an anchor plate pushing block; the anchor plate pushing block is hinged with the first nut block and is in abutting or pushing fit with the wing-expanding type anti-pulling anchor plate so as to push the wing-expanding type anti-pulling anchor plate to be switched from a folded position to the unfolded position when the first nut block moves axially; the motor is a double-shaft extending motor, and when the double-shaft extending motor drives the screw rod to rotate, the axial driving piece and the first nut block synchronously move along the axial direction of the screw rod.
9. The side-pulling type wing spreading fish mine anchor with the delayed guide cable according to any one of claims 1 to 6, wherein an inner wing is arranged at the periphery of the anchor core, the inner wing is integrally formed or fixedly connected with the anchor core and extends into a seabed soil body along with the extension of the anchor core, and the inner wing is of a two-wing structure which is oppositely arranged along the periphery of the anchor core.
10. The side-pulling type spreading fish mine anchor with delayed guide cable according to any one of claims 1-6, wherein when the spreading type anti-pulling anchor plate adopts a rotary spreading mode, the spreading type anti-pulling anchor plate is hinged with the anchor head end of the anchor body through an anchor plate spreading pivot, the anchor plate spreading pivot is fixedly connected with or integrally formed with the anchor body, the spreading type anti-pulling anchor plate comprises a first wing plate and a second wing plate which are oppositely arranged, and the first wing plate and the second wing plate are respectively outwards turned to the spreading positions around the respective anchor plate spreading pivot When the wing-type anti-pulling anchor plate adopts a translational extension unfolding mode, the wing-type anti-pulling anchor plate can be in linear sliding joint with the anchor body and can be configured to extend outwards from the anchor body under the driving of the first driving device.

Description

Side-pulling type wing-spreading torpedo anchor with delayed guide cable Technical Field The invention relates to the technical field of deep sea anchoring devices, in particular to a side-pulling type wing-spreading fish mine anchor with a delay guide cable. Background The deep sea floating platform and ocean engineering facilities such as offshore wind power and the like need reliable anchoring devices to ensure long-term stable operation in complex ocean environments. These facilities are usually located in deep sea areas, face severe environmental conditions such as high pressure, low temperature, strong water flow, etc., and place extremely high demands on the pullout stability, adaptability and reliability of the anchoring device. With the continuous expansion of the scale of ocean engineering, the performance requirements on the anchoring device are increasingly improved, and development of novel anchoring technology capable of meeting the requirement of high safety level under the long-term service condition of deep sea is urgently needed. The traditional fish mine anchor is a main stream device in the field of deep sea anchoring, and is anchored by penetrating into the seabed by means of dead weight, so that the device has the advantages of convenience in installation, large applicable water depth and the like, and is widely applied to foundation equipment of deep sea ultra-large facilities. The anchoring device is directly connected to the anchor tail through a steel cable, and provides pulling resistance by means of friction force between the anchor body and soil body on the seabed, so that the anchoring device is indispensable key equipment in deep sea engineering. However, the conventional fish mine anchor has various defects, which seriously affect the application effect in deep sea engineering. Firstly, the steel cable is fixedly connected with the anchor tail to lead to fixed acting points of pulling force, the anchor body is easy to deflect under the action of bending moment when the anchor body is pulled out, the contact area between the anchor body and the seabed is obviously reduced, and the pulling-out-resistant bearing efficiency is greatly weakened. Secondly, the anchor head lacks an active expansion structure, and only depends on the friction force between the cylindrical surface of the anchor body and the soil body of the seabed to provide pulling resistance, so that the anchor body is easy to pull up to fail or the soil body is easy to shear and destroy when encountering extreme storm and wave load. Moreover, the length of the anchor body is fixed and cannot be adjusted, complex geological conditions such as a soft seabed and a hard interlayer cannot be actively adapted, the problems that the pulling resistance reserve is insufficient, the anchor body slides and the like easily occur due to insufficient embedding depth under a high-bearing scene of an oversized floating facility are caused, and the safety redundancy requirement of deep sea engineering is difficult to meet. Disclosure of Invention The invention provides a side-pulling type wing-spreading torpedo anchor with a delay guide cable, and aims to improve at least one of the technical problems. In order to solve the technical problems, the invention provides a side-pulling type wing-spreading fish mine anchor with a delayed guide cable, which comprises an anchor body, an anchor core, a first driving device, a wing-spreading type anti-pulling anchor plate, a second driving device and a guide cable switching mechanism. The anchor body is of a hollow sleeve structure and is provided with an anchor head end and an anchor tail end which are oppositely arranged, and a central line of the anchor body is defined as an anchor body axis. The anchor core is arranged inside the anchor body and can extend out along the axial direction of the anchor body. The second driving device is arranged in the anchor body and is in transmission connection with the anchor core so as to drive the anchor core to extend out along the axis direction of the anchor body. The wing-spreading type anti-pulling anchor plate is arranged at the anchor head end of the anchor body and is movably connected with the anchor body so as to switch between a furling position and a unfolding position. The first driving device is arranged in the anchor body and is in transmission connection with the wing-expanding type anti-pulling anchor plate so as to drive the wing-expanding type anti-pulling anchor plate to be switched from a folding position to the unfolding position. The guide cable switching mechanism comprises a lifting lug, a steel cable, a guide cable groove and a releasable constraint piece. The lug sets up at the anchor body lateral wall and is located between anchor head end and the anchor tail end, and the one end and the lug of steel cable are connected and draw forth to the anchor body outside from the lug. The cable guide groove is arranged at the periphe