CN214875499U - Three-dimensional braided composite material marine catheter - Google Patents

Abstract

The utility model discloses a three-dimensional combined material marine conduit of weaving, marine conduit's trailing edge is equipped with integrated into one piece's bionical protruding structure, marine conduit is woven the structure by carbon fiber three-dimensional and is formed with the resin material is compound, marine conduit internally mounted screw blade and screw wheel hub, bionical protruding structure includes that the zigzag is protruding, convex bellied one or more, the carbon fiber three-dimensional structure of weaving is one or more of 2.5D structure, warp direction reinforcing 2.5D structure, latitudinal direction reinforcing 2.5D structure, normal direction reinforcing 2.5D structure, the two-way reinforcing 2.5D structure of longitude and latitude. The utility model discloses a three-dimensional braided structure prefab carries out the combined manufacturing with water-resistant resin to the special design of trailing edge structure can effectively reduce the noise and the vibration that ocean pipe screw produced, improves greatly and bears efficiency, reduces structure weight, promotes to bear under water and corrosion resisting property, has longer service cycle.

Description

Three-dimensional braided composite material marine catheter

Technical Field

The utility model relates to a marine vessel equips technical field, concretely relates to three-dimensional composite material marine vessel of weaving.

Background

With the development of resources and national development, the marine environment is more and more emphasized by various social circles, wherein the marine ship needs the technology of a duct propeller in daily operation, and the duct is used as an additional device of the ship propeller, so that the duct not only guides the incoming flow in front of the propeller in a standard way, but also plays a certain role in protecting the propeller inside the duct.

At present, most of guide pipes are made of copper alloy, so that the weight is large, and large noise is often accompanied in the process of ship propulsion, the source of the noise is not only from the noise of a propeller, but also the noise insulation performance of a round pipe is a main concern of all circles of society. In military marine vessels, such as submarines and other military marine weapons, the noise generated by the ducted propellers is often fatal, and the important characteristics of the noise reduction structure determine the concealment characteristics in the marine vessel battle. In addition, the ducted propeller generates certain noise in the marine field, which threatens marine animals and destroys the ecological environment. In addition, the weight of the marine vessel is often reduced, and the conventional marine conduit is mostly prepared from copper alloy, so that the marine vessel has the advantages of poor corrosion resistance, short service period, higher quality and no accordance with the technical requirements of current requirements on large endurance and light weight.

Therefore, the three-dimensional braided composite material marine conduit is developed, the three-dimensional braided prefabricated member and the water-resistant resin are compositely manufactured, the three-dimensional braided cylindrical shell structure is more suitable for wrapping the propeller, the structure is more compact, and the three-dimensional braiding technology is mainly used in the field of aviation and deep sea diving devices so as to realize the characteristics of high strength and weight reduction.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome prior art not enough, the utility model provides a three-dimensional combined material marine conduit of weaving adopts the three-dimensional structure of weaving of carbon fiber and water proofness resin composite forming to have special design's trailing edge structure, can promote greatly and bear the weight of efficiency, reduce structure weight, the noise abatement has longer service cycle.

The technical scheme is as follows: in order to achieve the above object, the utility model provides a three-dimensional combined material ocean pipe of weaving, the trailing edge of ocean pipe is equipped with integrated into one piece's bionical protruding structure, ocean pipe is woven structure and resin matrix composite forming by the carbon fiber three-dimension, ocean pipe is connected with the hull through connecting the box, and internally mounted screw blade and screw wheel hub.

Furthermore, the bionic bulge structure comprises one or more of a sawtooth-shaped bulge and a circular arc-shaped bulge, and the special designed bionic bulge structure can effectively improve the bearing efficiency of the marine conduit and greatly reduce the generated noise.

Furthermore, the bionic bulge structures are uniformly distributed along the circumference of the tail edge of the ocean conduit.

Further, the three-dimensional structure of weaving of carbon fiber is one or more in 2.5D structure, warp direction reinforcing 2.5D structure, latitudinal direction reinforcing 2.5D structure, normal direction reinforcing 2.5D structure, the two-way reinforcing 2.5D structure of longitude and latitude, the 2.5D structure adopts the mode of layering connection to carry out the tying with adjacent yarn layer, is layer upon layer crosslinked structure.

Further, the carbon fiber selected for the ocean conduit is carbon fiber with the strength of more than 3000mpa and the modulus of more than 2000gpa, and comprises one or more of T300 carbon fiber and T700 carbon fiber.

Further, the surface of the marine conduit is coated with a damping layer, so that a certain insulation effect on noise can be generated.

Further, the damping layer is made of any one of asphalt, soft rubber or high polymer materials.

Furthermore, the resin matrix is water-resistant resin which can resist the corrosion of external seawater.

Has the advantages that: the utility model provides a pair of combined material marine conduit is woven to three-dimensional has following advantage for prior art:

(1) the marine conduit is manufactured by compounding the three-dimensional woven prefabricated part and the water-resistant resin, effectively improves the underwater bearing and corrosion resistance under the condition of reducing the weight of the structure, and has longer service period and more excellent seawater corrosion resistance.

(2) The tail edge of the marine duct adopts a bionic concave-convex structure design, and the damping layer is coated on the surface of the marine duct, so that the bearing efficiency of the duct is improved, and the noise and vibration generated by the marine duct propeller are greatly reduced.

Drawings

The invention will be further described and illustrated with reference to the accompanying drawings.

Fig. 1 is a schematic overall structure diagram of the preferred embodiment of the present invention;

FIG. 2 is a side view of a preferred embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the trailing edge of a preferred embodiment of the present invention;

the parts in the drawings are numbered as follows: 1. a marine vessel; 2. a bionic bulge structure; 3. a propeller blade; 4. a propeller hub; 2-1, zigzag protrusions; 2-2, circular arc bulge.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings to more clearly and completely illustrate the technical solutions of the present invention.

The utility model discloses a technique is moulded to vacuum auxiliary technology or resin transfer heat makes thermosetting resin base member in the solidification process and three-dimensional structure of weaving solidify the cross-linking, finally the shaping on the mandrel. The three-dimensional braided cylindrical shell structure is more suitable for wrapping the propeller, the structure is more compact, and the three-dimensional braided technology is mainly used in the fields of aviation and deep sea diving devices to realize the characteristics of high strength and weight reduction.

The different structures of the tail edge of the catheter comprise a sawtooth shape and a circular arc shape, and the main inspiration comes from the development of the animal bionic technology. The silent flight capability is a problem to be solved urgently in the motion of aviation and deep sea submarines, wherein the flight data acquisition of the owl shows the bionic technical characteristics of the owl, the flight data display the outline of saw teeth, a brand new thought is provided for the design of the tail edge of the ocean conduit, and the saw teeth design with different proportions is carried out on the tail edge of the conduit, so that the noise can be effectively resisted. The structural characteristics of the concave-convex arc are derived from the fact that scientists find that a structure protruding from the front edge of a pectoral fin of an ocean whale provides high lift force for the whale, and the structure is favorable for reducing the flow direction vortex of resistance, so that the purposes of reducing the resistance and improving the lift force are achieved. After the two structures are combined, the bearing efficiency of the conduit is improved, the generated noise is greatly reduced, in addition, the damping layer is coated on the outer layer of the resin of the conduit, the sound wave generated by the propeller pushing seawater can be absorbed by the damping layer, and the design of the damping layer can also generate a certain isolation effect on the noise.

In addition to the characteristic of the marine environment often accompanied by corrosive effects, unlike other components, the marine vessel, as a critical part of the marine vessel, is fatal in many cases from the destruction of its material properties. Therefore, the corrosion characteristics of ships need to make certain judgment on the selection of the material of the conduit, the selection of matrix resin is the key of corrosion resistance of the integral member for the marine conduit formed by curing carbon fibers and resin through a vacuum auxiliary process, and the water-resistant resin is selected to be more suitable for the application of the marine conduit. The microcosmic functional groups of the resin are different, the characteristics of the internal structure of the resin are often required to be known, and the resin containing less water-absorbing functional groups is selected to achieve the aim of hydrophobicity.

As shown in fig. 1-3, a preferred embodiment of a three-dimensional braided composite material marine conduit is shown, a bionic protruding structure 2 is integrally formed at the trailing edge of the marine conduit 1, the marine conduit 1 is formed by compounding a carbon fiber three-dimensional braided structure and a water-resistant resin material, the marine conduit 1 is connected with a ship body through a connecting box body, and a propeller blade 3 and a propeller hub 4 are installed inside the marine conduit.

Further, the three-dimensional structure of weaving of carbon fiber is one or more in 2.5D weaving structure, warp direction reinforcing 2.5D weaving structure, latitudinal direction reinforcing 2.5D weaving structure, normal direction reinforcing 2.5D weaving structure, the two-way reinforcing 2.5D weaving structure of longitude and latitude. The 2.5D structure adopts a layered connection mode to bind adjacent yarn layers, and is a layer-by-layer angle interlocking structure.

Further, the carbon fiber selected for the ocean conduit 1 is carbon fiber with strength greater than 3000mpa and modulus greater than 2000gpa, and comprises one or more of T300 carbon fiber and T700 carbon fiber. The volumes of the resin matrix and the carbon fiber woven layer respectively account for 40-60% of the volume of the marine catheter 1.

In the embodiment, the marine conduit 1 is in a radial contraction structure from the front edge to the tail edge, the bionic bulge structures 2 adopt a mode of combining saw-tooth shapes 2-1 and circular-arc-shaped bulges 2-2, the saw-tooth shapes 2-1 and the circular-arc-shaped bulges 2-2 are uniformly arranged at intervals along the circumferential direction of the tail edge of the marine conduit 1, the bionic bulge structures 2 are even in number, and the saw-tooth shapes and the circular-arc shapes account for half of each other.

Further, the surface of the marine pipe 1 is coated with a damping layer, which can isolate noise to a certain extent. The damping layer is made of any one of asphalt, soft rubber or high polymer materials, and the thickness of the damping layer is 1-1.5 mm.

The three-dimensional braided composite material marine catheter in the preferred embodiment is prepared by the following method:

(1) according to the drawing requirements of three-dimensional weaving of the marine conduit, the conduit structure with saw-tooth-shaped and arc-shaped bulges arranged at intervals at the tail edge is integrally woven by utilizing a three-dimensional weaving technology, and the special tail edge structure is periodically woven in a yarn adding and reducing mode to finally form a prefabricated member of the three-dimensional weaving marine conduit.

(2) The method comprises the steps of finishing a resin composite process of a three-dimensional woven structure prefabricated part by taking a hydrophobic resin matrix as a raw material and adopting a vacuum auxiliary forming process or a resin transfer thermoplastic forming process to finish primary preparation of the marine conduit, wherein aiming at special trailing edge design, a special mould is adopted to finish resin transfer moulding.

(3) And after the steps are completed, processing a damping coating on the outer layer of the primarily formed marine catheter to complete the preparation of the carbon fiber three-dimensional woven marine catheter.

The utility model discloses a three-dimensional structure prefab of weaving carries out the combined manufacturing with water resistance resin to the special design of trailing edge structure, noise and vibration that can effectively reduce ocean pipe screw and produce improve bearing efficiency greatly, reduce structure weight, promote to bear under water and corrosion resisting property, have longer service cycle, more excellent resistant seawater corrosion characteristic.

The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention.

Claims (8)

1. The three-dimensional braided composite material marine conduit is characterized in that a bionic protruding structure (2) which is integrally formed is arranged at the tail edge of the marine conduit (1), the marine conduit (1) is formed by a carbon fiber three-dimensional braided structure and a resin matrix in a composite mode, and a propeller blade (3) and a propeller hub (4) are installed in the marine conduit (1).

2. The three-dimensional braided composite marine conduit according to claim 1, wherein said biomimetic protrusion structure (2) comprises one or more of saw-tooth shaped protrusions (2-1), circular arc shaped protrusions (2-2).

3. The marine vessel of three-dimensional braided composite material as claimed in claim 1, wherein said biomimetic raised structures (2) are circumferentially distributed along the trailing edge of the marine vessel (1).

4. The three-dimensional braided composite marine catheter of claim 1, wherein said carbon fiber three-dimensional braided structure is one or more of a 2.5D braided structure, a 2.5D braided structure with warp reinforcement, a 2.5D braided structure with weft reinforcement, a 2.5D braided structure with normal reinforcement, and a 2.5D braided structure with warp and weft reinforcement.

5. The marine vessel of claim 1, characterized in that the carbon fiber used for the marine vessel (1) has a strength of more than 3000mpa and a modulus of more than 2000 gpa.

6. A three-dimensional braided composite marine conduit according to claim 1, wherein the surface of the marine conduit (1) is coated with a damping layer.

7. The three-dimensional braided composite marine conduit of claim 6, wherein said damping layer is made of any one of asphalt, soft rubber or polymer material.

8. The marine conduit of claim 1, wherein said resin matrix is a water resistant resin material.

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