CN114084283A - Dragging point conversion structure and dragging point conversion method using same - Google Patents
Dragging point conversion structure and dragging point conversion method using same Download PDFInfo
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- CN114084283A CN114084283A CN202111463190.7A CN202111463190A CN114084283A CN 114084283 A CN114084283 A CN 114084283A CN 202111463190 A CN202111463190 A CN 202111463190A CN 114084283 A CN114084283 A CN 114084283A
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- towing
- rope
- water surface
- underwater
- cable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/56—Towing or pushing equipment
- B63B21/66—Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
Abstract
The invention relates to a towing point conversion structure and a towing point conversion method using the towing point conversion structure, which comprises an underwater test stage and an underwater test completion stage, wherein in the initial state, an underwater towing rope and a water surface towing rope are in the initial state, the underwater towing rope is in a tensioned state, and the water surface towing rope is in a loose state; when the water surface towing state is changed, the combined towing cable is fished, the water surface towing rope is tensioned, the folding part of the water surface towing rope in the accommodating pipe is unfolded and separated from the limiting strip until the length of the water surface towing rope between the binding belt and the floating raft is smaller than that of the underwater towing rope between the binding belt and the floating raft, the water surface towing rope is in a tensioned stress state at the moment, the underwater towing rope is in a loose state, and the floating raft is pulled by the water surface towing rope. After the test is finished and when the surface working ship tows the floating raft to return to the port, the underwater towing point is switched to the towing point on the deck of the floating raft, so that the stability and the safety of towing on the water surface can be ensured.
Description
Technical Field
The invention relates to the technical field of towing of submersibles, in particular to a towing point conversion structure and a towing point conversion method using the same.
Background
When the launching submarine missile test is carried out in China, after the submarine submerges, the problems of command communication between the submarine and the ground, transmission between a time system and test data and visual communication provided for ground optical equipment are solved by a 'submergence communication system' taking a towing buoyant raft as a main body. The principle of the system is that a communication buoyant raft with certain buoyancy is connected with a communication instrument installed in a boat body through a towing cable, and during a submergence test, a submarine drags the buoyant raft to advance synchronously through the towing cable. After the test is finished, the submarine releases the towing cable. After the submarine leaves, the surface working ship salvages the towing cable and tows the floating raft to return to the port.
In the whole test process, two towing working conditions exist, one is a test working condition for towing the surface raft by the underwater submarine, and the other is a return working condition for towing the surface raft by the surface working ship. Preferentially guarantee experimental operating mode during the design, be provided with in the buoyant raft bottom and pull the bearing piece, be provided with above-mentioned towing hole to the good gesture of buoyant raft when guaranteeing experimental operating mode under water.
In the design in the past, the cable is dragged to surface of water work ship salvage when returning the navigation operating mode, and drag some and drag the cable and carry out the towing raft and return to the harbor when directly utilizing the towing rope operating mode under water, nevertheless drag the bottom of towing rope operating mode under water and drag some and drag the hole position and be extremely unfavorable to the towing operating mode on water, the gesture of buoyant raft is difficult to guarantee when the high-speed towing of surface of water.
The common water surface towing method usually adopts an upper deck towing method, but the method needs personnel to hold a pole on a water surface working ship to send a noose to a floating raft deck hook. This operation is difficult to achieve when the surface vessel is far from the buoyant raft, and is easy to achieve when the surface vessel is near, but the risk increases, and particularly when the sea conditions are poor, the buoyant raft and the surface vessel are likely to collide.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides a towing point conversion structure with a reasonable structure and a towing point conversion method using the towing point conversion structure, and stressed cables can be replaced according to the actual conditions of towing on the water surface and underwater, so that the stability and safety of towing on the water surface are improved.
The technical scheme adopted by the invention is as follows:
a towing point conversion structure, which comprises a buoyant raft, a towing combination cable led out from the buoyant raft,
the towing combination cable comprises a water surface towing rope and an underwater towing cable, the water surface towing rope and the underwater towing cable are bundled into a strand, the water surface towing rope and the underwater towing cable can carry out relative displacement,
a hook is arranged at the deck of the floating raft, and a towing bearing block is arranged at the bottom of the floating raft; one end of the water surface hauling rope is hung on the hook; one end of the underwater towing cable is connected with the towing bearing block;
a section of the water surface hauling rope close to the hook is folded and attached to the side wall of the floating raft,
the length of the underwater towing cable is larger than that of the water surface towing rope.
The water surface towing cable and the underwater towing cable are bound with binding belts, and a floater is arranged between the adjacent binding belts; gaps for allowing the water surface towing cable and the underwater towing cable to move relatively are reserved between the cable ties and the water surface towing cable and between the cable ties and the underwater towing cable.
And one end of the water surface towing cable, which is far away from the hook, is arranged as a water surface rope sleeve.
The side wall of the floating raft is provided with a containing pipe in an attaching mode, the containing pipe is fixed on the side wall of the floating raft through a limiting strip, and the water surface dragging rope is folded in the containing pipe.
And the towing bearing block is provided with a plurality of through holes for connecting an underwater towing cable.
The trailing combination cable also includes an optical cable that is restrained by a cable tie.
A drag point conversion method using the drag point conversion structure of claim 1, comprising the steps of:
firstly, an underwater test stage: the underwater towing rope and the water surface towing rope are in initial states, the underwater towing rope is in a tensioned stress state, and the water surface towing rope is in a loose state; the rope sleeve of the underwater towing rope is connected with an underwater submarine which tows a buoyant raft;
II, completing an underwater test: the dragging combined cable is fished on the water surface working ship and gradually received onto the ship, and when the water surface rope sleeve can be reached, the water surface dragging rope is pulled from the water surface rope sleeve, so that the folded part of the water surface dragging rope in the accommodating pipe is unfolded and separated from the limiting strip; until the length of the water surface hauling rope between the binding belt and the floating raft is smaller than the length of the underwater hauling rope between the binding belt and the floating raft, the water surface hauling rope is in a tensioning stress state, the underwater hauling rope is in a loose state, and the floating raft is pulled by the water surface hauling rope.
As a further improvement of the above technical solution:
the water surface hauling rope is bent in an N shape and then sleeved in the accommodating pipe.
The limiting strips are symmetrically arranged on two sides of the containing pipe.
The invention has the following beneficial effects:
the invention has compact and reasonable structure and convenient operation, adopts the towing point at the bottom of the floating raft when carrying out the submarine penetration test, and ensures the good posture of the floating raft under the working condition of the underwater test.
After the test, when the surface working ship tows the floating raft to return to the port, the towing points on the deck of the floating raft are switched, the stability and the safety of the surface towing can be guaranteed, and conditions are provided for towing the floating raft to return to the port at a high speed on the water surface.
The invention can complete the towing point conversion only by adding a set of Kevlar ropes on the basis of the existing towing system and carrying out appropriate modification, and has high realizability.
Compared with a towing point conversion mode that personnel hold the rod on the surface working ship to send the lasso to the hook of the deck of the buoyant raft, the invention has greater improvement on the aspect of safety.
Drawings
FIG. 1 is a schematic diagram of the initial state structure of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1 to show a structure of the trailing cable.
Fig. 3 is a schematic view of the structure of the present invention when the surface hauling rope is under force.
Wherein: 1. floating rafts; 2. dragging the combined cable; 3. hooking; 4. dragging a bearing block;
201. a water surface hauling rope; 202. an underwater towing cable; 203. binding a belt; 204. a float; 205. a water surface rope sling; 206. receiving a tube; 207. an optical cable.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-3, the towing point conversion structure of the present embodiment comprises a buoyant raft 1, a towing combination cable 2 led out from the buoyant raft 1,
the towing combination cable 2 comprises a water surface towing rope 201 and an underwater towing cable 202, the water surface towing rope 201 and the underwater towing cable 202 are bundled into a strand, the water surface towing rope 201 and the underwater towing cable 202 can perform relative displacement,
a hook 3 is arranged at the deck of the floating raft 1, and a towing bearing block 4 is arranged at the bottom of the floating raft 1; one end of the water surface hauling rope 201 is hung on the hook 3; one end of the underwater towing rope 202 is connected with the towing bearing block 4;
a section of the water surface hauling rope 201 close to the hook 3 is folded and attached on the side wall of the floating raft 1,
the length of the underwater tow cable 202 is greater than the length of the surface tow rope 201.
The surface towing cable and the underwater towing cable 202 are bound with bands 203, and a floater 204 is arranged between the adjacent bands 203; a gap for allowing the relative displacement of the surface towing cable and the underwater towing cable 202 is reserved between the cable tie 203 and the surface towing cable and the underwater towing cable 202.
One end of the water surface towing cable departing from the hook 3 is arranged as a water surface rope sleeve 205.
The side wall of the floating raft 1 is provided with a containing pipe 206, the containing pipe 206 is fixed on the side wall of the floating raft 1 through a limiting strip, and the water surface hauling rope 201 is folded in the containing pipe 206.
The towing bearing block 4 is provided with a plurality of through holes for connecting the underwater towing rope 202.
The trailing combination cable 2 also includes an optical cable 207 that is restrained by a cable tie 203.
The dragging point conversion method using the dragging point conversion structure of the embodiment includes the following steps:
firstly, an underwater test stage: the underwater towing rope 202 and the water surface towing rope 201 are in an initial state, the underwater towing rope 202 is in a tensioned stress state, and the water surface towing rope 201 is in a loose state; the rope sleeve of the underwater towing rope 202 is connected with an underwater submarine, and the underwater submarine tows the buoyant raft 1;
II, completing an underwater test: the hauling combined cable 2 is salvaged on the surface working ship, gradually received onto the ship, and when the surface rope sleeve 205 can be reached, the surface hauling rope 201 is pulled from the surface rope sleeve 205, so that the folding part of the surface hauling rope 201 in the receiving pipe 206 is unfolded and separated from the limit strip; until the length of the surface hauling rope 201 between the cable tie 203 and the floating raft 1 is smaller than the length of the underwater hauling rope 202 between the cable tie 203 and the floating raft 1, at the moment, the surface hauling rope 201 is in a tensioned and stressed state, the underwater hauling rope 202 is in a loose state, and the floating raft 1 is pulled by the surface hauling rope 201.
The surface hauling rope 201 is bent in an "N" shape and then is sleeved in the receiving pipe 206.
The limiting strips are symmetrically arranged on two sides of the accommodating pipe 206.
The specific structure and working process of the embodiment are as follows:
the towing combination cable 2 of the invention is formed by bundling a surface towing rope 201 and a underwater towing cable 202 by a ribbon 203. The length of the underwater towing cable in the embodiment is about 90 meters, and the total length of the water surface towing rope 201 is about 20 meters; at least 3 meters away from the towing point, the water surface towing rope 201 is bound on the underwater towing cable by the nylon cable tie 203 and is parallel, the end part of the water surface rope sleeve 205 part of the water surface towing rope 201 is bound on the towing combination cable 2 by the rope, the cable tie 203 in the embodiment is not completely tightened, and the water surface towing rope 201 can be freely drawn. The underwater tow cable 202 is provided with a float 204 between adjacent straps 203.
The underwater towing line 202 is a force bearing member, and the buoys 204 are arranged on the towing composite cable 2 at intervals to ensure a neutral buoyancy state of the towing composite cable 2.
Both ends of the underwater hauling cable 202 in the embodiment are provided with rope sleeves, and the structure of the rope sleeve is the same as that of the water surface rope sleeve 205 on the water surface hauling cable 201; one end of the underwater towing rope 202 is hung on the towing bearing block 4 at the bottom of the floating raft 1 through shackle, and the other end is connected with the underwater submarine, so that underwater towing is carried out during test.
Two ends of the water surface towing rope 201, one end of which is connected to the hook 3, are folded to be "N" shaped and then are plugged into the receiving pipe 206, the receiving pipe 206 is fixed on the side wall of the floating raft 1, extends downwards along the side wall of the floating raft 1, extends to the bottom of the floating raft 1, and then is bundled together with the underwater towing belt cable 202 and the optical cable 207 to form the towing combination cable 2. The optical cable 207 is a signal transmission member.
Adopt the purpose of N font to accomodate surface of water towing cable to increase length to in the receipts pipe 206 of polyethylene material is advanced in the cover, in order to guarantee that the surface of water towing cable can not loose easily, when operating mode under water, the surface of water towing cable can not be by rivers towards both sides.
In this embodiment, the underwater towing cable 202 is a steel cable, the water surface towing cable is a kevlar rope, and the kevlar rope has a lower density than the steel cable on the premise of ensuring the strength, thereby reducing the weight increase caused by the conversion device to a certain extent.
The initial state of the invention is: the underwater hauling cable 202 is stressed, and the water surface hauling rope 201 is loosened; after the test is finished, the stressed rope is replaced, namely the stressed rope is replaced by the water surface hauling rope 201 from the underwater hauling cable 202. In the invention, the initial state of the water surface towing rope 201 is set to be folded, so that the whole length can be increased, the length parallel to the underwater towing rope 202 is shortened, the influence on the underwater towing working condition resistance is reduced, and the safe towing distance between the water surface working ship and the floating raft 1 is ensured.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (9)
1. A drag point switching structure is characterized in that: comprises a floating raft (1) and a dragging combined cable (2) led out from the floating raft (1),
the towing combination cable (2) comprises a water surface towing rope (201) and an underwater towing cable (202), the water surface towing rope (201) and the underwater towing cable (202) are bundled into one strand, the water surface towing rope (201) and the underwater towing cable (202) can perform relative displacement,
a hook (3) is arranged at the deck of the floating raft (1), and a towing bearing block (4) is arranged at the bottom of the floating raft (1); one end of the water surface hauling rope (201) is hung on the hook (3); one end of the underwater towing rope (202) is connected with the towing bearing block (4);
a section of the water surface hauling rope (201) close to the hook (3) is folded and attached to the side wall of the floating raft (1),
the length of the underwater towing cable (202) is larger than that of the surface towing rope (201).
2. A drag point transition structure as claimed in claim 1, wherein: the water surface towing cable and the underwater towing cable (202) are bound with straps (203), and a floater (204) is arranged between the adjacent straps (203); gaps for allowing the water surface towing cable and the underwater towing cable (202) to relatively displace are reserved between the cable ties (203) and the water surface towing cable and between the cable ties and the underwater towing cable (202).
3. A drag point transition structure as claimed in claim 1, wherein: one end of the water surface towing cable, which is far away from the hook (3), is arranged as a water surface rope sleeve (205).
4. A drag point transition structure as claimed in claim 1, wherein: the side wall of the floating raft (1) is provided with a containing pipe (206), the containing pipe (206) is fixed on the side wall of the floating raft (1) through a limiting strip, and the water surface towing rope (201) is folded in the containing pipe (206).
5. A drag point transition structure as claimed in claim 1, wherein: the towing bearing block (4) is provided with a plurality of through holes for connecting the underwater towing rope (202).
6. A drag point transition structure as claimed in claim 1, wherein: the trailing combination cable (2) also comprises an optical cable (207) which is retained by the cable tie (203).
7. A drag point conversion method using the drag point conversion structure of claim 1, comprising the steps of:
firstly, an underwater test stage: the underwater towing rope (202) and the water surface towing rope (201) are in initial states, the underwater towing rope (202) is in a tensioned stress state, and the water surface towing rope (201) is in a loose state; the rope sleeve of the underwater towing rope (202) is connected with an underwater submarine, and the underwater submarine tows the floating raft (1);
II, completing an underwater test: the hauling combined cable (2) is salvaged on the surface working ship and gradually received on the ship, when the surface rope sleeve (205) can be reached, the surface hauling rope (201) is pulled from the surface rope sleeve (205), so that the folding part of the surface hauling rope (201) in the receiving pipe (206) is unfolded and separated from the limiting strip; until the length of the water surface towing rope (201) between the binding belt (203) and the floating raft (1) is smaller than the length of the underwater towing rope (202) between the binding belt (203) and the floating raft (1), at the moment, the water surface towing rope (201) is in a tensioning stress state, the underwater towing rope (202) is in a loose state, and the floating raft (1) is pulled by the water surface towing rope (201).
8. The drag point conversion method of claim 7, wherein: the water surface hauling rope (201) is bent in an N shape and then sleeved in the receiving pipe (206).
9. The drag point conversion method of claim 7, wherein: the limiting strips are symmetrically arranged on two sides of the containing pipe (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111463190.7A CN114084283B (en) | 2021-12-02 | 2021-12-02 | Dragging point conversion structure and dragging point conversion method using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111463190.7A CN114084283B (en) | 2021-12-02 | 2021-12-02 | Dragging point conversion structure and dragging point conversion method using same |
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| CN114084283A true CN114084283A (en) | 2022-02-25 |
| CN114084283B CN114084283B (en) | 2023-02-28 |
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| CN113277008A (en) * | 2021-07-06 | 2021-08-20 | 昆明理工大学 | Underwater fixed-height towing device and method for metal detector |
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2021
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| US6889624B1 (en) * | 2004-04-19 | 2005-05-10 | The United States Of America As Represented By The Secretary Of The Navy | Grapple anchor device for underwater towing of watercraft |
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| CN114084283B (en) | 2023-02-28 |
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