CN213508365U - Multi-cable type underwater blocking net device and underwater blocking net system - Google Patents
Multi-cable type underwater blocking net device and underwater blocking net system Download PDFInfo
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- CN213508365U CN213508365U CN202022296259.9U CN202022296259U CN213508365U CN 213508365 U CN213508365 U CN 213508365U CN 202022296259 U CN202022296259 U CN 202022296259U CN 213508365 U CN213508365 U CN 213508365U
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Abstract
The utility model discloses a multi-cable formula is arresting net device under water and is arresting net system under water, including the dictyosome, main rope, main drive division, vice hawser, vice drive division and controller. The lower end of the net body is connected with a counterweight unit. The main mooring rope is connected with the upper end of the net body, the two ends of the main mooring rope are respectively connected with the main driving part, and the main driving part is arranged on the external platform and used for accommodating or releasing the main mooring rope so as to drive the upper end of the net body to lift. The auxiliary cable is connected with the middle part of the net body, the two ends of the auxiliary cable are respectively connected with the auxiliary driving parts, and the auxiliary driving parts are arranged on the external platform and used for accommodating or releasing the auxiliary cable so as to drive the middle part of the net body to lift. The controller is respectively electrically connected with the main driving part and the auxiliary driving part and is used for respectively controlling the main driving part and the auxiliary driving part to operate. The main cable and the main driving part are used for main lifting of the net body, the auxiliary cable and the auxiliary driving part are mainly used for weakening the action of water flow force and are used for auxiliary lifting, and therefore the requirements for the main driving part and the auxiliary driving part are reduced, and cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of block under water, especially, relate to a multi-cable formula is block net device under water and is blocked net system under water.
Background
With the rapid development of global marine industry, the marine industry in China is more and more comprehensively developed. Meanwhile, marine facilities such as ports, docks, artificial islands, scenic spot planning areas and the like are disturbed and damaged more and more frequently by marine floaters, large marine organisms and illegal ships entering ports. In order to protect the safety of sea areas, it is important to set a blocking defense system for important targets.
The existing marine important targets are relatively fixed in position, wide in area span, protected in a mode of multi-pass underwater arresting nets (auxiliary overwater arresting net devices), the underwater arresting nets are installed on marine buildings such as caissons or floating bodies, the lower ends of the underwater arresting nets are fixed on the seabed through anchor chains, two sides of each net body are lifted by arresting cables and traction ropes, and the net bodies are lifted to an arresting state to prevent ocean floaters, large marine organisms, illegal harboring ships and the like from passing.
The flow velocity of seawater in the harbor bay increases with the fluctuation tide, and the flow resistance is known from hydrodynamics
The resistance to water flow is squared with the flow rate. The resistance of the arresting net body to water flow is increased in square times along with the increase of the flow velocity of the seawater, so that the arresting net body is easy to damage, the tonnage of a winch required in system design is increased, and the cost is increased. Even partial ports cannot arrange and deploy the barrier net system due to overhigh seawater flow velocity and overlarge winch pulling force. How to counteract the water flow force to reduce the system cost becomes an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a many cables formula is arresting net device under water and is arresting net system under water to for offsetting among the prior art the water flow force to arresting net's effort and greatly increased the problem of arresting net system cost.
The technical scheme of the utility model is that:
a multi-cable underwater barrier net apparatus comprising:
the lower end of the net body is connected with a counterweight unit;
the main cable is connected with the upper end of the net body, two ends of the main cable are respectively connected with the main driving part, and the main driving part is arranged on an external platform and used for accommodating or releasing the main cable so as to drive the upper end of the net body to lift;
the auxiliary cable is connected with the middle part of the net body, two ends of the auxiliary cable are respectively connected with the auxiliary driving part, and the auxiliary driving part is arranged on an external platform and used for accommodating or releasing the auxiliary cable so as to drive the middle part of the net body to lift;
and the controller is respectively electrically connected with the main driving part and the auxiliary driving part and is used for respectively controlling the main driving part and the auxiliary driving part to operate.
Preferably, in the multi-cable underwater arresting net device according to an embodiment of the present invention, the main cable is connected to the upper end of the net body through a plurality of main hauling cables, and two ends of the main hauling cables are respectively connected to the main cable and the upper end of the net body;
the auxiliary cable is connected with the middle part of the net body through a plurality of auxiliary hauling ropes, and two ends of each auxiliary hauling rope are respectively connected with the auxiliary cable and the middle part of the net body.
Preferably, the utility model provides a multi-cable formula is arresting net device under water works as when the dictyosome rises to the highest position, on same plumb line, the acute angle contained angle of main haulage rope and horizontal plane is less than the acute angle contained angle of vice haulage rope and horizontal plane.
Preferably, an embodiment of the present invention provides a multi-cable underwater arresting net device, wherein the counterweight unit is a counterweight anchor chain.
Preferably, the multi-cable underwater arresting net device provided by an embodiment of the present invention further includes a main pulley block and an auxiliary pulley block provided on an external platform, the main cable is wound around the main pulley block, and the main pulley block is used for adjusting the position of the main cable;
the auxiliary cable is wound on the auxiliary pulley block, and the auxiliary pulley block is used for adjusting the position of the auxiliary cable.
Preferably, an embodiment of the present invention provides a multi-cable underwater arresting net device, wherein the main driving part and the auxiliary driving part are traction winches.
An underwater barrier net system comprising a multi-cable underwater barrier net apparatus as claimed in any one of the above.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the utility model discloses, main rope and main drive division are used for the main promotion of dictyosome, and vice hawser and vice drive division mainly used weaken the effect of rivers power, secondly are used for supplementary promotion, consequently, have reduced the power that is used for dragging main rope and vice hawser respectively that main drive division and vice drive division need be exported, so the utility model discloses in, reduced the requirement to main drive division and vice drive division to the cost is reduced has solved among the prior art for offsetting the effort of rivers power to arresting net and greatly increased the problem of arresting net system cost.
(2) The utility model relates to an embodiment adopts the haulage rope as intermediate unit, converts the power of main drive portion and the non-vertical direction of auxiliary drive portion (horizontal direction under most circumstances) into vertical power and promotes the dictyosome, can maintain the good gesture of dictyosome in same horizontal plane.
(3) The utility model relates to an embodiment, on same plumb line, compare with main haulage rope, the acute angle contained angle between vice haulage rope and the horizontal plane is great, and it is big to decompose the component force that supplies the dictyosome to promote on the vertical direction, therefore vice hawser only need less pulling force alright provide great effort to the dictyosome. And the lower end of the net body is provided with a counterweight anchor chain which is fixed on the seabed. Therefore, the auxiliary driving piece drags the auxiliary cable to restrain the net body under the action of the auxiliary traction rope, and the action of water flow resistance on the net body is counteracted by combining the counterweight anchor chain.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
Fig. 1 is a schematic view of a blocking state structure of a multi-cable type underwater barrier net lifting device of the present invention;
fig. 2 is a schematic top view of a multi-cable type underwater barrier net lifting device of the present invention;
fig. 3 is a schematic structural view of the passable state of the multi-cable type underwater barrier net lifting device of the present invention.
Description of reference numerals:
1: a net body; 2: a main rope; 3: a secondary cable; 4: a main hauling rope; 5: an auxiliary hauling rope; 6: a main cable winch; 7: a secondary cable winch; 8: a main pulley block; 9: an auxiliary pulley block; 10: a counterweight anchor chain; 11: a marine structure.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
Example 1
Referring to fig. 1 to 3, the present embodiment provides a multi-rope type underwater arresting net apparatus, including a net body 1, a main rope 2, a main driving part, an auxiliary rope 3, an auxiliary driving part, and a controller. The lower end of the net body 1 is connected with a counterweight unit. The main mooring rope 2 is connected with the upper end of the net body 1, the two ends of the main mooring rope are respectively connected with the main driving part, and the main driving part is arranged on the external platform and used for accommodating or releasing the main mooring rope 2 so as to drive the upper end of the net body 1 to lift. The auxiliary mooring rope 3 is connected with the middle part of the net body 1, the two ends of the auxiliary mooring rope are respectively connected with the auxiliary driving parts, and the auxiliary driving parts are arranged on the external platform and used for accommodating or releasing the auxiliary mooring rope 3 so as to drive the middle part of the net body 1 to lift. The controller is respectively electrically connected with the main driving part and the auxiliary driving part and is used for respectively controlling the main driving part and the auxiliary driving part to operate.
In this embodiment, the main ropes 2 and the main driving part are used for the main hoisting of the net body 1, and the auxiliary ropes 3 and the auxiliary driving part are mainly used for attenuating the effect of the water flow force and secondarily used for the auxiliary hoisting, and therefore, the force required by the main driving part and the auxiliary driving part to be outputted for towing the main ropes 2 and the auxiliary ropes 3, respectively, is reduced, so in this embodiment, the requirements for the main driving part and the auxiliary driving part are reduced, thereby reducing the cost.
The structure of the present embodiment will now be explained.
The lower end of the net body 1 is fixed in a relative position through a counterweight unit, and simply, the lower end of the net body 1 can be located on the seabed through the gravity of the counterweight unit, or the lower end of the net body 1 can be fixed on the seabed through a counterweight unit such as a counterweight anchor chain 10, and in other embodiments, other modes can be adopted, and the method is not limited here.
Two sides of the net body 1 can be connected to a marine building 11 through fixing devices, the upper end of the net body 1 drags a main cable 2 through a main driving part to be pulled up to reach a specified position (the position which needs to be reached by the upper end of the net body 1 can be determined according to actual requirements, namely, when the net body 1 is lifted to a blocking state, the upper end of the net body 1 can be under the water surface, just on the water surface or above the water surface), and the lower end of the net body 1 is fixed on the sea floor through the method.
When dictyosome 1 rose, just started, main hawser 2 and auxiliary rope 3 promoted the upper end and the middle part of dictyosome 1 respectively to make dictyosome 1 rise, when the position was predetermineeed in the middle part arrival of dictyosome 1, auxiliary rope 3 was no longer accomodate to the auxiliary drive portion, but fixed auxiliary rope 3 for offset the effect of water resistance to dictyosome 1, and main hawser 2 continues to drive dictyosome 1 upper end and rises. Therefore, the auxiliary cable 3 mainly acts to restrain the net body 1, and is matched with the counterweight anchor chain 10 to counteract the effect of water flow resistance on the net body 1, and the auxiliary effect is to assist in lifting the net body 1.
The main driving part and the auxiliary driving part may both adopt a traction winch, the traction winch is disposed on an external platform, specifically may be disposed on the offshore building 11, and the traction winch may be divided into a main cable winch 6 and an auxiliary cable winch corresponding to the main cable 2 and the auxiliary cable 3. Specifically, in this embodiment, two main cable winches 6 and two auxiliary cable winches 7 may be provided, one main cable winch 6 and one auxiliary cable winch 7 are disposed on one side of the net body 1, and the other main cable winch 6 and the other auxiliary cable winch 7 are disposed on the other side of the net body 1.
In order to adjust the positions of the main cable 2 and the auxiliary cable 3, a main pulley block 8 and an auxiliary pulley block 9 can be correspondingly arranged respectively, the main cable 2 is wound on the main pulley block 8, and the auxiliary cable 3 is wound on the auxiliary pulley block 9, so that the main cable winch 6 and the auxiliary cable winch can conveniently drive the main cable 2 and the auxiliary cable 3 respectively. Two groups of main pulley blocks 8 and auxiliary pulley blocks 9 can be arranged corresponding to the number of the traction winches, and respectively correspond to the two main cable winches 6 and the two auxiliary cable winches 7 arranged at two sides of the net body 1. The main pulley block 8 and the auxiliary pulley block 9 can in particular also be arranged on an external platform, which in particular can be a marine structure 11.
If the multi-cable type underwater barrier net lifting device needs to be converted into the blocking state from the passable state, the conversion process is as follows: the controller starts the main cable winch 6 and the auxiliary cable winch to work simultaneously, the winding drum rotates forwards to contract the main cable 2 and the auxiliary cable 3, the main cable 2 lifts the net body 1 and the auxiliary cable 3 lifts the middle part of the net body 1 under the action of the main pulley block 8 and the auxiliary pulley block 9. When the auxiliary cable 3 is lifted to a certain height, the auxiliary cable winch contracts the auxiliary cable 3, the rope retracting amount and the pulling force reach the set threshold value, the auxiliary cable winch automatically stops rotating and is locked to offset the effect of water flow resistance on the net body 1. Meanwhile, the main cable winch 6 continues to work because the rope receiving amount and the pulling force do not reach the set threshold value, and gradually lifts the net body 1 until the set height is reached.
When a ship needs to pass through, the multi-cable type underwater blocking net lifting device needs to be converted into a passable state from a blocking state, and the controller controls the main cable winch 6 and the auxiliary cable winch 7 to synchronously rotate reversely. The main mooring rope 2 is released firstly, the auxiliary mooring rope 3 is released after the rope releasing amount of the main mooring rope 2 reaches a set value, namely, only the main mooring rope 2 is released firstly, then the main mooring rope 2 and the auxiliary mooring rope 3 are released together, and the net body 1 sinks under the action of gravity. When the rope releasing amount of the main rope 2 and the auxiliary rope 3 reaches a threshold value, namely the net body 1 sinks to a preset depth, the main rope winch 6 and the auxiliary rope winch 7 are controlled to stop rotating, and the multi-rope type underwater arresting net lifting device is converted into a passable state to allow ships to pass; after the ship passes through the port, the controller controls the main cable winch 6 and the auxiliary cable winch 7 to rotate forward again to tighten the main cable 2 and the auxiliary cable 3, so that the net body 1 is lifted, the main cable winch 6 and the auxiliary cable winch 7 are locked after the preset height is reached, and the port is sealed again.
Furthermore, the main driving part and the auxiliary driving part can be driven by a stepless variable frequency speed regulating system, a high-performance vector control type frequency converter is adopted for control, low-frequency large-torque stable operation is realized under vector control, and high reliability and environmental adaptability are realized.
Furthermore, the controller can adopt a PLC (programmable logic controller), can transmit back a PLC control system through 485 communication, and reserves an Ethernet interface, thereby facilitating remote data sharing.
Example 2
Referring to fig. 1 and 2, the present embodiment provides a multi-cable type underwater barrier net lifting device, and based on embodiment 1, a hauling rope is used as an intermediate device.
The hauling cable is divided into a main hauling cable 4 and an auxiliary hauling cable 5. The main mooring rope 2 is connected with the upper end of the net body 1 through a plurality of main traction ropes 4, and two ends of each main traction rope 4 are respectively connected with the main mooring rope 2 and the upper end of the net body 1. The auxiliary cable 3 is connected with the middle part of the net body 1 through a plurality of auxiliary hauling ropes 5, and two ends of the auxiliary hauling ropes 5 are respectively connected with the auxiliary cable 3 and the middle part of the net body 1.
Further, when the net body 1 rises to the highest position, on the same plumb line, the acute angle included angle between the traction rope and the horizontal plane is smaller than the acute angle included angle between the auxiliary traction rope 5 and the horizontal plane. Therefore, the component force of the auxiliary hauling rope 5 decomposed to the vertical direction for lifting the net body 1 is large, and the auxiliary rope 3 only needs small pulling force to provide large acting force for the net body 1. The main function of the auxiliary cable 3 and the auxiliary hauling cable 5 is to restrain the net body 1, and the balance weight anchor chain 10 is matched to counteract the effect of water flow resistance on the net body 1.
In this embodiment, the hauling rope is used as an intermediate device to convert the force in the non-vertical direction (in most cases, the horizontal direction) of the main driving part and the auxiliary driving part into a vertical force to lift the net body 1, so that the net body 1 can be maintained in a good posture in the same horizontal plane.
Example 3
This embodiment provides an underwater barrier net system comprising a multi-wire underwater barrier net apparatus as described in embodiment 1 or/and embodiment 2. Due to the adoption of the multi-cable type underwater arresting net device provided by the embodiment 1 or/and the embodiment 2, compared with the traditional underwater arresting net system, the underwater arresting net system provided by the embodiment has low cost.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (7)
1. A multi-cable underwater barrier net device, comprising:
the lower end of the net body is connected with a counterweight unit;
the main cable is connected with the upper end of the net body, two ends of the main cable are respectively connected with the main driving part, and the main driving part is arranged on an external platform and used for accommodating or releasing the main cable so as to drive the upper end of the net body to lift;
the auxiliary cable is connected with the middle part of the net body, two ends of the auxiliary cable are respectively connected with the auxiliary driving part, and the auxiliary driving part is arranged on an external platform and used for accommodating or releasing the auxiliary cable so as to drive the middle part of the net body to lift;
and the controller is respectively electrically connected with the main driving part and the auxiliary driving part and is used for respectively controlling the main driving part and the auxiliary driving part to operate.
2. The multi-rope underwater barrier net apparatus of claim 1, wherein the main rope is connected to the upper end of the net body by a plurality of main hauling ropes, both ends of the main hauling ropes are connected to the main rope and the upper end of the net body, respectively;
the auxiliary cable is connected with the middle part of the net body through a plurality of auxiliary hauling ropes, and two ends of each auxiliary hauling rope are respectively connected with the auxiliary cable and the middle part of the net body.
3. The multi-cable underwater barrier net apparatus of claim 2, wherein the main hauling rope forms an acute angle with the horizontal plane smaller than the auxiliary hauling rope forms an acute angle with the horizontal plane on the same plumb line when the net body is raised to the highest position.
4. A multi-cable underwater barrier net apparatus according to claim 1, wherein the counterweight unit is a counterweight anchor chain.
5. The multi-wire underwater arresting net apparatus of claim 1 further comprising a main pulley block and a sub-pulley block provided on an external platform, said main wire rope being wound around said main pulley block, said main pulley block being used to adjust the position of said main wire rope;
the auxiliary cable is wound on the auxiliary pulley block, and the auxiliary pulley block is used for adjusting the position of the auxiliary cable.
6. The multi-cable underwater barrier net apparatus of claim 1, wherein the primary drive and the secondary drive are each a traction winch.
7. An underwater barrier net system comprising a multi-wire underwater barrier net apparatus as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022296259.9U CN213508365U (en) | 2020-10-15 | 2020-10-15 | Multi-cable type underwater blocking net device and underwater blocking net system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022296259.9U CN213508365U (en) | 2020-10-15 | 2020-10-15 | Multi-cable type underwater blocking net device and underwater blocking net system |
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| CN213508365U true CN213508365U (en) | 2021-06-22 |
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| CN202022296259.9U Active CN213508365U (en) | 2020-10-15 | 2020-10-15 | Multi-cable type underwater blocking net device and underwater blocking net system |
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