CN111071405A - Rope releasing mechanism for underwater detection platform recovery - Google Patents
Rope releasing mechanism for underwater detection platform recovery Download PDFInfo
- Publication number
- CN111071405A CN111071405A CN201911418917.2A CN201911418917A CN111071405A CN 111071405 A CN111071405 A CN 111071405A CN 201911418917 A CN201911418917 A CN 201911418917A CN 111071405 A CN111071405 A CN 111071405A
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- China
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- rope
- fishing
- winding drum
- detection platform
- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
- B63C7/16—Apparatus engaging vessels or objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base
Abstract
The invention discloses a rope releasing mechanism for recovering an underwater detection platform, which comprises a winding drum cover plate, a fishing rope, a winding drum shaft, a rope arrangement winding drum and a pressing assembly, wherein the winding drum cover plate is fixedly connected with the fishing rope; the lower extreme vertical fixation of reel shaft is on the bottom plate, salvage the rope coiling at the surface of reel shaft, and the order of coiling is by lower supreme layering winding, and the salvage rope on every layer is in same level and from inside to outside extension, and the changeover portion salvage rope between the layer is fixed through the glass rope, and the reel shaft is packed into through the winding drum of arranging the rope to the salvage rope that the coiling is good, and the winding drum of arranging the rope passes through the apron to be fixed on the reel shaft, and the salvage rope is located the one end of arranging rope winding drum top and passes through the snap ring and fix on the apron surface, compress tightly the subassembly and install on the bottom plate and exert invariable radial pressure to the salvage rope that the coiling is good, glass rope and snap ring automatic fracture. The invention can safely and quickly recover the detection platform from water to a deck in a high sea state environment.
Description
Technical Field
The invention relates to an auxiliary mechanism for recovering an underwater detection platform, in particular to a rope releasing mechanism for releasing a recovery rope.
Background
With the increasing development of world ocean engineering, more and more ocean underwater exploration engineering equipment is widely used. The anchor system platform and the bottom-sitting platform are used as two most common underwater detection platforms, the anchor and the platform are directly fixed together by the bottom-sitting platform, the platform is directly seated on the seabed, the anchor system platform connects the anchor and the platform together through an anchor cable, the system is suspended below dozens of meters of the sea surface to work, the two platforms are less affected by the sea surface condition, the system has the characteristics of high concealment and good safety, and can realize long-term and stable work, and the platform mainly utilizes various hydrological element sensors carried on the platform to measure ocean hydrological elements such as waves, ocean currents, water temperature, salinity and the like.
According to the collected data, the traditional recovery method of the anchor system platform and the base platform is that a releaser deck control unit controls the releaser to release, so that the platform is separated from the anchor, the separated platform floats out of the water surface under the action of the self positive buoyancy of the platform, after the platform is found by workers on a mother ship after the platform floats out of the water surface, the mother ship starts to approach the platform, a fishing rod is used for salvaging a well-fixed traction rope on the platform after the platform approaches, the traction rope is fixed on a fixed ship pile at the stern, a crane on the mother ship is started, the manual crane is connected with a lifting point of the platform, the crane is started to lift the platform on a mother ship deck, and the recovery process is ended. The recovery method needs to manually connect the crane with the platform hoisting point, the operation is very difficult to realize at sea, the time for collecting and releasing is long, the platform is near the mother ship for a long time, the platform is easy to collide with the mother ship, and the recovery safety risk is very high, so the recovery method needs to be improved urgently.
Disclosure of Invention
In view of the above, the present invention provides a rope releasing mechanism for underwater detection platform recovery, which can recover the detection platform from water to a deck safely and quickly in a high sea state (three-level) environment.
A rope releasing mechanism for recovering an underwater detection platform comprises a reel cover plate, a fishing rope, a reel shaft, a rope arrangement reel and a pressing assembly;
the fishing rope is fixed on the outer surface of the winding drum shaft in a layered winding sequence from bottom to top, the fishing ropes on each layer are at the same horizontal height and extend from inside to outside, the fishing ropes on the transition sections between the layers are fixed through glass ropes, the wound fishing ropes are loaded into the winding drum shaft through rope arrangement winding drums, the rope arrangement winding drums are fixed on the winding drum shaft through cover plates, one ends of the fishing ropes above the rope arrangement winding drums are fixed on the upper surface of the cover plates through clamp rings, and the pressing assemblies are mounted on the bottom plate and apply constant radial pressure on the wound fishing ropes to prevent the fishing ropes from loosening in the releasing process; the glass rope and the clamping ring automatically break and separate under the action of releasing tension.
Further, the rope pressing assembly comprises a cylinder supporting seat, a cylinder clamping ring, a cylinder, a rope pressing plate and rope pressing rubber;
the cylinder supporting seat is fixedly connected to the bottom plate, the cylinder is installed on the cylinder supporting seat through a cylinder clamping ring, a telescopic shaft of the cylinder is connected with a rope pressing plate and a rope pressing rubber which are vulcanized together into a whole, the compressed rubber is in contact with the fishing rope, and the two cylinders are distributed in an up-and-down parallel mode.
Furthermore, one end of the salvaging rope, which is positioned at the bottom of the rope arranging winding drum, is led out from a guide groove in the middle of the rope pressing rubber and then is connected with a lifting point on the detection platform, the other end of the salvaging rope penetrates through a rope guide ring arranged on the detection platform and then is connected with a floating ball, and the floating ball is installed on the detection platform through an acoustic releasing mechanism.
Furthermore, the rope arranging winding drum adopts a cone angle structure, and the size of the cone angle is 2-5 degrees.
Furthermore, the fishing rope is made of ultra-high molecular weight polyethylene fibers and is treated by gum dipping.
Furthermore, the fishing rope is a flat rope with the same Z-shaped twisting direction, the manufacturing process of the fishing rope is that fibers are twisted into a thread according to the Z-shaped twisting direction, then a plurality of threads are twisted into a strand according to the S-shaped twisting direction, and finally three to four strands of threads are twisted into the rope according to the Z-shaped twisting direction.
Has the advantages that:
1. the fishing rope adopts the sequence of winding from bottom to top in layers, the fishing rope on each layer is positioned at the same horizontal height and expands from inside to outside, the fishing rope is discharged from the rope arrangement winding drum layer by layer from top to bottom when being discharged, the fishing rope is always discharged in a free state without collapse, and the fishing rope is directly connected with the lifting point of the platform when being recovered and can be used for directly lifting the platform, so that the platform does not need to be caught when being recovered, and the safety of the recovery platform is improved.
2. The fishing rope pressing assembly ensures that the fishing rope is pressed tightly, so that the fishing rope can be smoothly released when released, and the fishing rope can be prevented from scattering when released.
3. The release force of the snap ring is designed to be about 10Kg, so that the fishing rope can be prevented from being scattered under the action of water flow, impact during distribution and recovery and the like, and the fishing rope is easy to release under the action of buoyancy of the fishing floating ball. The rope winding displacement reel adopts the cone angle structure, and cone angle size is 2 ~ 5 degrees, and is the same with weaving reel cone angle, can conveniently salvage the rope and emit from the reel, and reel upper portion adopts the fillet transition, and the fillet radius slightly is greater than and salvages the rope radius, utilizes the fillet to prevent to salvage the rope and scatter when first round, and the fillet can not influence in addition and salvage the rope and normally emit.
4. The fishing rope is of a flat structure, the phenomenon of squeezing between layers can be effectively prevented, the fishing rope is made of ultra-high molecular weight polyethylene fibers (commonly called imported Dinima materials), and the fishing rope is subjected to gum dipping treatment, so that the wear resistance of the fishing rope can be improved, and the hardness and softness of the rope can be conveniently adjusted. The fishing rope is made by twisting the fiber into a thread in the Z-shaped twisting direction, twisting a plurality of threads into one strand in the S-shaped twisting direction, and twisting three to four strands into the rope in the Z-shaped twisting direction.
Drawings
FIG. 1 is a schematic structural view of a pay-off mechanism of the present invention;
FIG. 2 is a top view of FIG. 1 (with the fishing line removed);
FIG. 3 is a schematic view of the installation relationship of the rope pay-off mechanism on the detection platform;
FIGS. 4 and 5 are schematic views of the detection platform in an anchor deployment state;
FIG. 5 is a schematic view illustrating a disposition state of the detection platform;
FIG. 6 is a schematic view of a recovery state of the probing platform;
fig. 7 is a schematic view of the detection platform in the working state on the seabed.
Wherein, 1-cylinder retainer ring; 2-standard cylinder; 3-rope pressing plate; 4-cord pressing rubber; 5-a snap ring; 6-cover plate; 7-fishing the rope; 8-a bottom plate; 9-a spool shaft; 10-rope winding drum; 11-cylinder supporting seat, 12-lifting point, 13-rope guide ring, 14-floating ball, 15-detection platform, 16-anchor and 17-anchor cable; 18-anchor rope winch, 19-unhooking device; 20-detacher spud pile; 21-fixed pulley, 22-A type frame;
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
As shown in the attached drawings 1 and 2, the invention provides a rope releasing mechanism for recovering an underwater detection platform, which comprises a cylinder collar 1, a cylinder 2, a rope pressing plate 3, rope pressing rubber 4, a snap ring 5, a reel cover plate 6, a fishing rope 7, an installation bottom plate 8, a reel shaft 9, a rope arranging reel 10 and a cylinder support seat 11, wherein the rope pressing plate 2 and the rope pressing rubber 3 are vulcanized into a whole, the rope releasing mechanism has the effects that the rope pressing plate 2 and the rope pressing rubber 3 are pushed to move through an expansion link of an RS standard cylinder and the fishing rope 7 is always pressed tightly, the reason of rubber vulcanization is three, firstly, the fishing rope adopts a special tool to arrange the rope manually, the surface of the fishing rope 7 is uneven, the self elasticity of the rubber can be utilized to adjust, and the fishing rope 7 is guaranteed to be pressed by the whole rope pressing assembly; secondly, the friction coefficient between the rubber material and the fishing rope 7 is large, so that the fishing rope 7 can not be scattered after being pressed; thirdly, the rubber material can not damage the fishing rope.
Install special rope winding frock after reel apron 6 and rope winding reel 10 assemble an organic whole and arrange and wind salvage rope 7, in order to guarantee that salvage rope 7 can be played smoothly from rope winding reel 10, all emit from rope winding reel 10 from the top down direction when salvaging rope 7 emits, salvage rope 7 all emits under free state always, the collapse can not appear, there is one section changeover portion between layer and the layer during the rope winding, in order to prevent that the changeover portion from appearing lax phenomenon on rope winding reel 10 upper portion, it is fixed to pass through the glass rope with the changeover portion, the glass rope only plays the fixed action, intensity is very little, under floater buoyancy effect when emitting, directly break the glass rope. After the fishing rope is discharged, the tail end of the fishing rope is clamped in a clamping ring groove in a winding drum cover plate 6 by adopting a clamping ring 5, and the disengagement force of the clamping ring 5 is designed to be about 10Kg, so that the fishing rope 7 is prevented from being broken away under the action of water flow, impact during distribution and recovery and the like, and is easily disengaged under the action of buoyancy of a floating ball 14.
As shown in fig. 3, the whole rope pay-off mechanism is installed on the detection platform 15 through the bottom plate 8, one end of the fishing rope 7, which is located at the bottom of the rope arrangement drum 10, is led out from a guide groove in the middle of the rope pressing rubber 4 and then connected with a lifting point 12 on the detection platform 15, the other end of the fishing rope 7 penetrates through a rope guide ring 13 arranged on the detection platform 15 and then is connected with a floating ball 14, and the floating ball 14 is installed on the detection platform 15 through an acoustic release mechanism.
The arrangement of the detection platform 15 comprises two processes of anchor and platform arrangement, wherein the anchor arrangement process comprises the following steps: discharging the cable 17 onto the cable winch 18; the fixed end of the detacher 19 is connected with the fixed pile 20 of the detacher and fixed at the stern, the release end of the detacher is enabled to be out of the stern board, and whether the safety pin on the detacher 19 is reliably connected is observed, as shown in the figure A; paying out the anchor cable 17 arranged on the anchor cable winch 18 by a proper length, and simultaneously, leading the end of the paid-out anchor cable 17 to pass through a fixed pulley 21 on an A-shaped frame 22 and be connected with the corresponding position of the anchor 8; starting the A-shaped frame 22, lifting the anchor 16 to be higher than the height of the ship board, observing the length of the anchor cable 17, and rotating the anchor 16 carried by the A-shaped frame 6 to be out of the ship board after the anchor cable 17 is proper in length; starting the anchor rope winch 18 to release the anchor rope 17, starting the A-shaped frame 22 after the earrings on the anchor rope 17 penetrate through the fixed pulley 21, rotating the A-shaped frame 22 in the ship board, adjusting the length of the anchor rope 17 to enable the earrings on the anchor rope 17 to be in the deck, and connecting the earrings with the release end of the detacher; if the shear pin is securely attached, the cable winch 18 is activated to apply a force to the detacher 19 to release the cable 17 from the cable winch 18 as shown in fig. 4.
The platform laying process comprises the following steps: the platform laying rope passes through another fixed pulley on the A-shaped frame 6 and then goes through the anchor rope winch on the rear disc, the free end of the laying rope is connected with the lifting point of the detection platform 15 through the unhooking device 19, and the tail ends of all the released anchor ropes 1 are connected with the anchor point of the detection platform 15 through the shackle
The platform laying rope 10 passes through another fixed pulley 11 on an A-shaped frame 22 and then is wound on an anchor rope winch 18, the free end of the laying rope is connected with a lifting point of a detection platform 15 through a detacher 19, and the tail ends of all the laid anchor ropes 1 are connected with an anchor point of the detection platform 15 through shackles, as shown in figure 3, the working schematic diagram of the laying platform is shown;
starting the A-shaped frame 22, simultaneously starting the anchor rope winch to pay out the platform cloth and pay off ropes, outboard the ship with the A-shaped frame 6 rotating, after the bottom of the detection platform 15 is close to the water surface, pulling the detacher 12 to separate the cloth and pay off ropes from the lifting points of the detection platform 15, and enabling the detection platform 15 to enter the water and float on the water surface under the action of the buoyancy of the detection platform 15; the anchor line 17 connected to the anchor point of the detection platform 15 is placed in the water, and after the detection platform 15 is stabilized in the water, the remote-control detacher 19 separates the safety line from the anchor line earring, and the detection platform 15 is brought into the water under the action of the anchor 16, as shown in fig. 5.
The recovery process of the detection platform 15 is as follows: the releaser deck control unit sends a control signal to the acoustic release mechanism of the floating ball and releases the floating ball, so that the floating ball 14 is separated from the detection platform 15, the fishing rope 7 is released from the rope releasing mechanism under the action of the buoyancy of the floating ball, the fishing rope 7 is released in a winding sequence and at the lower layer of the guide of the central hole of the rope guide ring 13, and when the fishing rope is released to the end, the two ends of the fishing rope are only connected with the floating ball 14 and the lifting point 12 of the detection platform 15.
After the salvaging floating ball 14 floats out of the water surface, in order to find the salvaging floating ball 14 at sea, orange red reflecting paint is sprayed on the surface of the salvaging floating ball 14;
the float 14 is fished on the deck of the mother ship, the fishing rope 7 is pulled out from the fishing float 14, the fishing rope 15 passes through a fixed pulley 21 on an A-shaped frame 22 of the mother ship, and the fishing rope 7 is discharged on the anchor rope winch 18.
The releaser deck control unit releases the anchor 16 to separate the anchor system from the detection platform 15, the detection platform 15 floats out of the water surface under the action of self buoyancy, the anchor rope winch 18 is started to recover the fishing rope 7 in the floating process of the detection platform 15, the change condition of the pulling force of the fishing rope is observed in the recovery process, and the fishing rope is prevented from being suddenly broken due to the reasons of hanging a fishing net and the like on the platform; slowly recovering the fishing rope 7 by the anchor rope winch 2, gradually hoisting the detection platform 15 away from the water surface, starting the A-shaped frame after determining reliability, and hoisting the detection platform 15 to the specified position of the deck.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A rope releasing mechanism for recovering an underwater detection platform is characterized by comprising a winding drum cover plate, a fishing rope, a winding drum shaft, a rope arrangement winding drum and a pressing assembly;
the fishing rope is fixed on the outer surface of the winding drum shaft in a layered winding sequence from bottom to top, the fishing ropes on each layer are at the same horizontal height and extend from inside to outside, the fishing ropes on the transition sections between the layers are fixed through glass ropes, the wound fishing ropes are loaded into the winding drum shaft through rope arrangement winding drums, the rope arrangement winding drums are fixed on the winding drum shaft through cover plates, one ends of the fishing ropes above the rope arrangement winding drums are fixed on the upper surface of the cover plates through clamp rings, and the pressing assemblies are mounted on the bottom plate and apply constant radial pressure on the wound fishing ropes to prevent the fishing ropes from loosening in the releasing process; the glass rope and the clamping ring automatically break and separate under the action of releasing tension.
2. The pay-off mechanism as claimed in claim 1, wherein the rope pressing assembly comprises a cylinder support seat, a cylinder collar, a cylinder, a rope pressing plate and a rope pressing rubber;
the cylinder supporting seat is fixedly connected to the bottom plate, the cylinder is installed on the cylinder supporting seat through a cylinder clamping ring, a telescopic shaft of the cylinder is connected with a rope pressing plate and a rope pressing rubber which are vulcanized together into a whole, the compressed rubber is in contact with the fishing rope, and the two cylinders are distributed in an up-and-down parallel mode.
3. The rope pay-off mechanism as claimed in claim 1 or 2, wherein one end of the fishing rope at the bottom of the rope arrangement drum is led out from the guide groove in the middle of the rope pressing rubber and then connected with the hoisting point on the detection platform, the other end of the fishing rope passes through the rope guide ring arranged on the detection platform and then is connected with the floating ball, and the floating ball is installed on the detection platform through the acoustic release mechanism.
4. The pay-off mechanism as claimed in claim 3, wherein the pay-off spool adopts a cone angle structure, and the cone angle is 2-5 degrees.
5. The rope pay-off mechanism as claimed in claim 4, wherein the fishing rope is made of ultra-high molecular weight polyethylene fiber, and the fishing rope is treated by dipping.
6. The rope unwinding mechanism of claim 5, wherein the fishing rope is a flat rope with Z-shaped twisting direction in the same direction, and the fishing rope is manufactured by twisting fibers into a thread in the Z-shaped twisting direction, twisting a plurality of threads into one strand in the S-shaped twisting direction, and twisting three to four strands into the rope in the Z-shaped twisting direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418917.2A CN111071405B (en) | 2019-12-31 | 2019-12-31 | Rope releasing mechanism for underwater detection platform recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418917.2A CN111071405B (en) | 2019-12-31 | 2019-12-31 | Rope releasing mechanism for underwater detection platform recovery |
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| Publication Number | Publication Date |
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| CN111071405A true CN111071405A (en) | 2020-04-28 |
| CN111071405B CN111071405B (en) | 2022-03-04 |
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| CN201911418917.2A Active CN111071405B (en) | 2019-12-31 | 2019-12-31 | Rope releasing mechanism for underwater detection platform recovery |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2439398Y (en) * | 2000-09-13 | 2001-07-18 | 中国科学院沈阳自动化研究所 | Pull out off from inside type cable releasing means |
| CA2140860C (en) * | 1993-06-23 | 2005-07-19 | Heiko Reichert | Emergency arrangement and method for emptying the tank of tank vessels in distress at sea |
| CN201686000U (en) * | 2010-05-26 | 2010-12-29 | 宜昌七环通讯工程有限责任公司 | Underwater refloating and recycling device |
| CN202089226U (en) * | 2011-03-25 | 2011-12-28 | 国家海洋局第一海洋研究所 | Floating body instrument integrated trawling-preventing seabed base |
| CN204569255U (en) * | 2015-01-09 | 2015-08-19 | 恒天九五重工有限公司 | The two-layer winding of a kind of winding of rotary drilling rig postposition type becomes grooving diameter platen drum |
| JP2017114223A (en) * | 2015-12-22 | 2017-06-29 | 川崎重工業株式会社 | Autonomous unmanned diving machine |
| CN109808858A (en) * | 2018-12-29 | 2019-05-28 | 中国船舶重工集团公司七五0试验场 | A kind of hawser release device and underwater equipment recycle fishing device |
-
2019
- 2019-12-31 CN CN201911418917.2A patent/CN111071405B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2140860C (en) * | 1993-06-23 | 2005-07-19 | Heiko Reichert | Emergency arrangement and method for emptying the tank of tank vessels in distress at sea |
| CN2439398Y (en) * | 2000-09-13 | 2001-07-18 | 中国科学院沈阳自动化研究所 | Pull out off from inside type cable releasing means |
| CN201686000U (en) * | 2010-05-26 | 2010-12-29 | 宜昌七环通讯工程有限责任公司 | Underwater refloating and recycling device |
| CN202089226U (en) * | 2011-03-25 | 2011-12-28 | 国家海洋局第一海洋研究所 | Floating body instrument integrated trawling-preventing seabed base |
| CN204569255U (en) * | 2015-01-09 | 2015-08-19 | 恒天九五重工有限公司 | The two-layer winding of a kind of winding of rotary drilling rig postposition type becomes grooving diameter platen drum |
| JP2017114223A (en) * | 2015-12-22 | 2017-06-29 | 川崎重工業株式会社 | Autonomous unmanned diving machine |
| CN109808858A (en) * | 2018-12-29 | 2019-05-28 | 中国船舶重工集团公司七五0试验场 | A kind of hawser release device and underwater equipment recycle fishing device |
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| CN111071405B (en) | 2022-03-04 |
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