CN111345254A

CN111345254A - Unpowered automatic-cleaning marine aquaculture net cage

Info

Publication number: CN111345254A
Application number: CN202010388044.1A
Authority: CN
Inventors: 毕春伟; 刘航飞; 赵云鹏
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-06-30

Abstract

The invention provides an unpowered automatic-cleaning marine aquaculture net cage which comprises a horizontally-arranged box body, wherein a central rotating shaft is fixed in the box body, and two ends of the central rotating shaft are rotatably connected with the top ends of towers arranged at two ends of the box body; a brush roller for cleaning the box body is arranged above the box body, two ends of the brush roller are respectively and fixedly connected with the top ends of the two towers through fixed supports, and two ends of the brush roller are respectively and rotatably connected with the fixed supports; and two ends of the brush roller are respectively connected with two ends of the central rotating shaft through a transmission device. The box body of the invention rotates under the action of external marine environment load, and different parts of the box body can periodically rotate to be above the water surface, thereby being convenient for overhaul and maintenance. The box drives the brush roller and rotates, scrubs the biological defiling on box frame and the netting structure, need not to provide extra power to the process of decontaminating realizes the automation completely, need not manual operation, and the operating efficiency is high.

Description

Unpowered automatic-cleaning marine aquaculture net cage

Technical Field

The invention relates to the technical field of aquaculture engineering and ocean engineering, in particular to ocean farming equipment, and particularly relates to an unpowered automatic-decontamination ocean farming net cage.

Background

At present, the marine culture in China is mainly near-shallow sea culture, and the development of the marine culture to deep sea and far shore is a necessary trend due to land source pollution, offshore ecological environment and multiple pressure of culture space. The practice of developed fishery countries such as Norway proves that the real deep and open sea mariculture needs to be developed, and the support of large fishery facilities and equipment cannot be opened.

China is rich in ocean space resources, but the sea bottoms of Bohai sea, yellow sea and east sea are basically on continental shelves, and most of sea areas which can be developed and utilized are within 50 meters. Considering the particularity of the sea condition environment in China, the applicable water depth of deep and far sea culture equipment in China is not too deep, and large-scale fixed culture net cage facilities are very suitable for the industrial requirements in China. The fixed aquaculture net cage is strong in wind and wave resistance and large in aquaculture water body, is easy to integrate automatic and intelligent equipment, and has advantages in application and popularization.

The box facilities mainly comprise a frame structure and a netting system, wherein the frame structure supports the whole box, and the netting system encloses a closed culture space. Due to the fact that the box body facility is soaked in seawater all the year round, shellfish, algae and hydroids fouling organisms are prone to being attached to the frame and the net. The whole structure of the box body is underwater and difficult to clean. The box facilities are far away from the land base, lack of energy supply, and the maintenance mainly depends on the manual work, and the work load of washing the net, changing the net is big, and the cycle is long, is unfavorable for the sustainable of breed activity to go on. The biological attachment not only increases the stress of the box body structure and is unfavorable for the structure safety; also can block meshes, reduce the water body exchange rate and influence the survival of the cultured fishes. Therefore, it is urgently needed to invent a marine culture facility which is easy to clean fouling attachments.

Disclosure of Invention

According to the technical problems, the unpowered automatic dirt cleaning marine aquaculture net cage is provided, the box body structure can automatically rotate under the load action of the external marine environment, the transmission device drives the attached brush rollers to rotate so as to clean fouling attachments on the frame structure and the net, and the box body facility has a large enough aquaculture space and a safe structure, can assist the development of the marine aquaculture industry of China to deep sea and far shore, and serves the marine strong national strategy of China.

The technical means adopted by the invention are as follows:

a power-free automatic-cleaning marine aquaculture net cage comprises a horizontally-arranged cylindrical box body, wherein a net is mounted on the outer surface of the box body, a central rotating shaft is fixed in the box body, and two ends of the central rotating shaft respectively penetrate out of the box body and are rotatably connected with the top ends of towers respectively arranged at two ends of the box body;

a brush roller for cleaning the box body is arranged above the box body, two ends of the brush roller are respectively and fixedly connected with the top ends of the two towers through fixed supports, and two ends of the brush roller are respectively and rotatably connected with the fixed supports; the bottom end of the tower is fixedly connected with a plurality of pile foundations fixed on the seabed;

two ends of the brush roller are respectively connected with two ends of the central rotating shaft through a transmission device;

the transmission device comprises a gear I fixed on the brush roller and a gear II fixed on the central rotating shaft, and the gear I and the gear II are connected through a closed transmission chain.

Furthermore, the box body comprises a plurality of longitudinal supports which are uniformly distributed along the axis direction of the central rotating shaft, the longitudinal supports are annular, the axis of each longitudinal support coincides with the axis of the central rotating shaft, the longitudinal supports are fixed into a whole through a plurality of transverse supports which are uniformly distributed around the central rotating shaft, the axis of each transverse support is parallel to the axis of the central rotating shaft, and the transverse supports are fixedly connected with the central rotating shaft through a plurality of radial supports which are uniformly distributed around the axis of the central rotating shaft.

Furthermore, two ends of the central rotating shaft are respectively connected with two ends of the tower frame in a rotating mode through slewing bearing turntable bearings fixedly installed at the top end of the tower frame.

Furthermore, the brush roller includes the roller, fixes multirow brush silk on the roller and install the brush roller bearing at roller both ends, the roller passes through brush roller bearing with the fixed stay rotates and is connected, just gear I with roller fixed connection.

Furthermore, the pile foundation comprises four piles which are distributed in a rectangular shape, the piles are fixed on the sea bottom, the tops of two adjacent piles are fixedly connected through bearing pillars, an inclined bearing pillar is fixed between two piles in one of two groups of diagonally arranged piles, the tower comprises two tower columns, a tower inclined strut and a tower support rod, the bottom ends of the two tower columns are respectively fixedly connected with the two ends of the inclined strut, and the top ends of the two tower columns are fixedly connected;

the bottom of the tower inclined strut is fixedly connected with the top of one of the two pile columns in the other group, the top of the tower inclined strut is fixedly connected with the top end of the tower upright column, one end of the tower supporting rod is fixedly connected with the top of the other pile column in the two pile columns in the other group, and the other end of the tower supporting rod is fixedly connected with the middle of the tower inclined strut.

The central rotating shaft is lower than the sea surface, and the brush roller is higher than the sea surface.

The outer diameter of the gear I is smaller than that of the gear II.

In the use state: the box body is used for ocean culture, and under the action of sea waves and ocean currents, the box body rotates around the axis of the central rotating shaft, and at the moment, the brush rollers rotate around the axis of the central rotating shaft under the driving of the transmission chain, so that the brush rollers clean the box body.

Compared with the prior art, the invention has the following advantages:

1. the unpowered automatic decontamination marine culture net cage is integrally of a steel structure and has strong wind wave resistance; because of adopting the fixed form of pile foundation, can provide powerful holding power, easily integrated breed the relevant automation equipment of production.

2. The culture water body of the box body is large and can reach more than 3 ten thousand cubic meters; the radial support in the box body is utilized, the whole culture space can be divided into compartments, and the classification culture, management and catching are facilitated.

3. The rotation of box is favorable to buffering marine environment load, reduces facility structure atress, promotes the structural security.

4. The box body rotates under the action of external marine environment load, and different parts of the box body can periodically rotate above the water surface, so that the maintenance and the repair are convenient. The box body drives the brush roller to rotate, biological fouling on the box body frame and the netting structure is scrubbed, and the problem that fouling and attachment are difficult to clean when the box body is positioned under water is effectively solved; and the decontamination process is completely automated, manual operation is not needed, and the operation efficiency is high.

5. The box body and the brush roller automatically rotate under the driving of ocean currents and ocean waves, additional power does not need to be provided, the problem of difficulty in energy supply for deep and open sea aquaculture is solved, and the device is green, environment-friendly, pollution-free and has good popularization and application prospects.

Based on the reasons, the invention can be widely popularized in the fields of marine culture and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a three-dimensional view of an unpowered automatic decontaminating marine aquaculture net cage in accordance with an embodiment of the present invention.

Fig. 2 is a front view of an unpowered automatic decontamination marine aquaculture net cage in an embodiment of the invention.

Fig. 3 is a side view of an unpowered automatic decontaminating marine aquaculture net cage in accordance with an embodiment of the present invention.

Fig. 4 is a top view of an unpowered automatic decontaminating marine aquaculture net cage in accordance with an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a transmission device according to an embodiment of the present invention.

Fig. 6 is a schematic view of automatic decontamination of the sea wave driven lower tank body in the embodiment of the invention.

FIG. 7 is a schematic view of the automatic decontamination of the ocean current driven lower tank according to the embodiment of the present invention.

In the figure: 1. a brush roller; 2. a box body; 3. a tower; 4. a pile foundation; 5. brushing wires; 6. a roll shaft; 7. a transmission device; 8. a brush roller bearing; 9. fixing and supporting; 10. a tower column; 11. a tower diagonal brace; 12. a bearing platform column; 13. pile columns; 14. radial support; 15. a slewing support turntable bearing; 16. a central rotating shaft; 17. netting; 18. transversely supporting; 19. longitudinal support; 20. a gear I; 21. a drive chain; 22. a tower support bar; 23. a bearing diagonal pillar; 24. and a gear II.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 7, an unpowered automatic dirt-removing marine aquaculture net cage comprises a horizontally arranged cylindrical box body 2, the length of the box body 2 is 100m, the diameter of the box body is 20m, a netting 17 is mounted on the outer surface of the box body 2, the diameter of the netting 17 is 2mm, the mesh size is 20mm, a central rotating shaft 16 is fixed in the box body 2, and two ends of the central rotating shaft 16 respectively penetrate through the box body 2 and are rotatably connected with the top ends of towers 3 respectively arranged at two ends of the box body 2; the tower 3 is 40m high;

a brush roller 1 for cleaning the box body 2 is arranged above the box body 2, two ends of the brush roller 1 are fixedly connected with the top ends of the two towers 3 through fixed supports 9 respectively, and two ends of the brush roller 1 are rotatably connected with the fixed supports 9 respectively; the diameter of the fixed support 9 is 1m, the wall thickness is 5cm, and the bottom end of the tower 3 is fixedly connected with a plurality of pile foundations 4 fixed on the sea bottom;

two ends of the brush roller 1 are respectively connected with two ends of the central rotating shaft 16 through a transmission device 7;

the transmission device 7 comprises a gear I20 fixed on the brush roller 1 and a gear II 24 fixed on the central rotating shaft, and the gear I20 and the gear II 24 are connected through a closed transmission chain 21. The diameter of the gear I20 is 1m, the diameter of the gear II 24 is 5m, namely the box body 2 rotates for one circle, and the brush roller 1 can rotate for 5 circles.

Further, the box body 2 comprises a plurality of longitudinal supports 19 uniformly arranged along the axial direction of the central rotating shaft 16, the longitudinal supports 19 are annular, the axial lines of the longitudinal supports 19 coincide with the axial line of the central rotating shaft 16, the longitudinal supports 19 are fixed into a whole through a plurality of transverse supports 18 uniformly distributed around the central rotating shaft 16, the axial lines of the transverse supports 18 are parallel to the axial line of the central rotating shaft 16, and the transverse supports 18 are fixedly connected with the central rotating shaft 16 through a plurality of radial supports 14 uniformly distributed around the axial line of the central rotating shaft 16. Wherein the diameter of the transverse support 18, the longitudinal support 19 and the radial support 14 is 1m, and the wall thickness is 3 cm; the diameter of the central rotating shaft 16 is 2.5m, and the wall thickness is 6 cm;

two ends of the central rotating shaft 16 are respectively connected with two ends of the tower 3 in a rotating way through a slewing bearing turntable bearing 15 fixedly installed at the top end of the tower 3.

Further, the brush roller 1 comprises a roller shaft 6, a plurality of rows of brush wires 5 fixed on the roller shaft 6 and brush roller bearings 8 arranged at two ends of the roller shaft 6, the roller shaft 6 is rotatably connected with the fixed support 9 through the brush roller bearings 8, and the gear I20 is fixedly connected with the roller shaft 6. The diameter of the roll shaft 6 is 1m, and the wall thickness is 3 cm; the brush filaments 5 are made of wear-resistant nylon filaments, and the length of the wear-resistant nylon filaments is 1 m.

Further, the pile foundation 4 includes four piles 13 distributed in a rectangular shape, the piles 13 are fixed on the seabed, the tops of two adjacent piles 13 are fixedly connected through a bearing pillar 12, an inclined bearing pillar 23 is fixed between two piles 13 in one of two groups of diagonally arranged piles 13, the tower 3 includes two tower columns 10, a tower inclined strut 11 and a tower support rod 22, the bottom ends of the two tower columns 10 are respectively fixedly connected with two ends of the inclined strut tower pillar 23, and the top ends of the two tower columns 10 are fixedly connected;

the bottom of the tower diagonal brace 11 is fixedly connected with the top of one pile 13 of the two piles 13 in the other group, the top of the tower diagonal brace 11 is fixedly connected with the top end of the tower upright post 10, one end of the tower support rod 22 is fixedly connected with the top of the other pile 13 of the two piles 13 in the group, and the other end of the tower support rod 22 is fixedly connected with the middle of the tower diagonal brace 11.

The central shaft 16 is below the sea level and the brush roller 1 is above the sea level.

The diameter of the tower column 10 is 2m, and the wall thickness is 5 cm; the diameter of each tower inclined strut 11 and the diameter of each tower supporting rod 22 are both 1m, and the wall thickness of each tower inclined strut and the wall thickness of each tower supporting rod are both 3 cm. The diameters of the bearing platform column 12, the inclined bearing platform column 23 and the pile column 13 are all 2m, the wall thicknesses are all 5cm, and the rigidity and strength requirements of actual engineering are met.

In the embodiment, the situation that sea waves are transmitted from left to right (as shown in fig. 6) is assumed, the box body 2 rotates clockwise under the action of the sea waves, so that the brush roller 1 is driven to rotate clockwise, and the brush wires 5 and the top of the box body 2 move relatively, so that the box body 2 is cleaned;

in this embodiment, it is assumed that the ocean current flows from left to right (as shown in fig. 7), the box body 2 rotates counterclockwise under the action of the ocean current, so as to drive the brush roller 1 to rotate counterclockwise, and similarly, the brush wires 5 and the top of the box body 2 move relatively, thereby realizing the decontamination operation of the box body 2.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power-free automatic-cleaning marine aquaculture net cage is characterized by comprising a horizontally-arranged cylindrical box body, wherein a net is mounted on the outer surface of the box body, a central rotating shaft is fixed in the box body, and two ends of the central rotating shaft respectively penetrate out of the box body and are rotatably connected with the top ends of towers respectively arranged at two ends of the box body;

2. The unpowered automatic dirt removing marine aquaculture net cage according to claim 1, wherein the cage body includes a plurality of longitudinal supports uniformly arranged along an axial direction of the central rotating shaft, the longitudinal supports are annular, an axial line of the longitudinal supports coincides with an axial line of the central rotating shaft, the plurality of longitudinal supports are fixed as a whole by a plurality of transverse supports uniformly distributed around the central rotating shaft, an axial line of the transverse supports is parallel to the axial line of the central rotating shaft, and the transverse supports are fixedly connected with the central rotating shaft by a plurality of radial supports uniformly distributed around the axial line of the central rotating shaft.

3. The unpowered automatic dirt removing marine aquaculture net cage according to claim 1, wherein two ends of the central rotating shaft are rotatably connected with two ends of the tower frame through slewing bearing turntables fixedly mounted at the top end of the tower frame respectively.

4. The unpowered automatic dirt removing marine aquaculture net cage according to claim 1, wherein the brush rollers comprise roller shafts, a plurality of rows of brush wires fixed on the roller shafts, and brush roller bearings installed at two ends of the roller shafts, the roller shafts are rotatably connected with the fixed supports through the brush roller bearings, and the gear I is fixedly connected with the roller shafts.

5. The unpowered automatic-cleaning marine aquaculture net cage according to claim 1, wherein the pile foundation comprises four piles distributed in a rectangular shape, the piles are fixed on the sea bottom, the tops of two adjacent piles are fixedly connected through a bearing pillar, an inclined bearing pillar is fixed between two piles in one of two sets of diagonally arranged piles, the tower comprises two tower columns, a tower inclined strut and a tower support rod, the bottom ends of the two tower columns are respectively fixedly connected with the two ends of the inclined strut tower column, and the top ends of the two tower columns are fixedly connected;

6. The unpowered automatic decontaminating marine aquaculture cage of claim 1, wherein said central shaft is below sea level and said brush rollers are above sea level.

7. The unpowered automatic dirt removing marine aquaculture net cage of claim 1, wherein the outer diameter of gear I is smaller than that of gear II.