CN113932664B

CN113932664B - Self-rotating water-entering buffering device of cavitator

Info

Publication number: CN113932664B
Application number: CN202111272536.5A
Authority: CN
Inventors: 李尧; 孙铁志; 宗智; 张润东
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-08-05
Anticipated expiration: 2041-10-29
Also published as: CN113932664A

Abstract

The invention provides a cavitator self-rotating water-entering buffering device which comprises a head fairing, wherein the rear end of the head fairing is detachably connected with the front end of a side fairing, the rear end of the side fairing is detachably connected with the head of a navigation body, a cavitator is arranged in the side fairing and is connected with the navigation body through a buffering device, the cavitator is rotatably connected with the output end of the buffering device, and a rotary driving device for driving the cavitator to rotate around the axis of the cavitator is arranged in the side fairing. A plurality of buffering air bags are arranged in the side fairing around the buffering device, and a side wall air injection system is arranged on the side wall of the side fairing. The invention realizes the formation of larger supercavitation by adopting a mode of rotating the cavitator. Meanwhile, the buffer airbag, the side wall air injection system and the buffer device are adopted to perform better buffer protection on the navigation body.

Description

Self-rotating water-entering buffering device of cavitator

Technical Field

The invention relates to the technical field of sailing body water entry, in particular to a self-rotating water entry buffering device for a cavitator.

Background

The underwater vehicle launched underwater by the common mode is easier to be detected by an enemy when executing a task and is easy to be restricted by a complex environment or serious electromagnetic interference, and more countries choose to develop the air-launched underwater vehicle or bomb to launch instead of a traditional underwater vehicle because the aerial platform launching has the advantages of strong concealment, difficult discovery when launching is not regular, strong maneuverability and the like. How to effectively implement the supercavitation navigation of the underwater navigation body during long-term navigation is also a technical difficulty and a key point, and how to form and maintain effective supercavitation after entering water also becomes a severe test.

The disadvantage of the high velocity ejection of the craft from the air vehicle is also apparent, as during cross-media flight the craft is subject to considerable slamming and internal devices are susceptible to overload damage. Therefore, effective impact protection of a vehicle body crossing a medium is an important issue in this field.

Disclosure of Invention

In accordance with the above technical problem, a cavitator self-rotating water-inlet buffering device is provided.

The technical means adopted by the invention are as follows:

the utility model provides a cavitator autogyration income water buffer, includes the head radome fairing, the rear end of head radome fairing and the front end separable connection of side radome fairing, the rear end of side radome fairing and the head separable connection of the navigation body are equipped with the cavitator in the side radome fairing, the cavitator pass through buffer with the navigation body coupling, the cavitator with buffer's output rotates to be connected, just be equipped with the drive in the side radome fairing the cavitator is around the rotatory rotary drive device of its axis.

The navigation body is internally provided with an air storage tank.

The rotary driving device comprises a plurality of spiral air passages, the spiral air passages are arranged in the cavitator and are distributed in a spiral radiation manner from the center to the outer edge of the cavitator, the outer edge of the cavitator is provided with a rotary air jet communicated with the spiral air passages, the center of the cavitator is connected with the front end of a connecting pipeline, and the spiral air passages are communicated with the front end of the connecting pipeline; the rear end of the connecting pipeline is communicated with the gas storage tank.

Buffer includes the outer sleeve, be equipped with the inner skleeve in the outer sleeve, the outer sleeve with part between the inner skleeve forms oil storage chamber, be equipped with the piston rod in the inner skleeve, the front end of piston rod is worn out the outer sleeve with the inner skleeve with the cavitator passes through the bearing and rotates and be connected, the rear end of piston rod has the piston, the piston with part between the inner skleeve front end is equipped with the cover and is in draw the spring on the piston rod, the rear end of outer sleeve is fixed with the attenuator fixed baseplate, and passes through the attenuator fixed baseplate with the navigation body coupling.

The connecting pipeline comprises a central vent pipe, the front end of the central vent pipe sequentially penetrates through the damper fixing base, the center of the rear end of the outer sleeve and the center of the rear end of the inner sleeve, penetrates into the piston rod and is hermetically and slidably connected with the inner wall of the piston rod, a buffer air cavity is arranged in the piston rod, the rear end of the buffer air cavity is communicated with the front end of the central vent pipe through a rotary air injection valve, a pressure spring with an axis coincident with the axis of the piston rod is arranged in the buffer air cavity, the end surface of the central vent pipe is abutted against the pressure spring, a through hole communicated with the buffer air cavity is arranged at the front end of the piston rod, and the through hole is communicated with the center of the cavitator to realize the communication between the spiral air passage and the through hole; the rear end of the central vent pipe is communicated with the outlet of the gas storage tank.

The side fairing is internally surrounded with a plurality of buffering air bags, the buffering air bags are detachably connected with the buffering device, the buffering air bags are communicated with the air storage tank through an inflation pipeline, an inflation valve is arranged in the inflation pipeline, and the inflation pipeline is arranged on the buffering device.

Buffering gasbag through connect the mouth with inflation line connects, buffering gasbag's entry and connection mouth fixed connection, inflation line's tip symmetry processing has the ball mounting hole, the axis perpendicular to of ball mounting hole the axis of inflation line tip, and two install the ball in the ball mounting hole respectively, two the top of ball is equipped with a fixed bolt respectively, and two fixed bolt corresponds rather than ball fixed connection, two draw spring coupling through the ball between the ball, be equipped with in the connection mouth with fixed bolt matched with annular groove, just the symmetry is equipped with two losing the electricity type and connects mouthful electro-magnet on the inner wall of connection mouth, lose the electricity type connect have on mouthful electro-magnet the inner wall with ball matched with recess.

Be equipped with lateral wall gas injection system on the lateral wall of side radome fairing, lateral wall gas injection system be used for to the front end gas injection of side radome fairing, lateral wall gas injection system includes gaseous hole with higher speed, the rear end in gaseous hole with higher speed through jet-propelled check valve with the gas holder intercommunication, the front end in gaseous hole with higher speed and the place ahead space intercommunication of side radome fairing, the gaseous hole of accelerating is the tesla valve hole.

The tail end of the navigation body is provided with an engine, a tail gas recovery device is arranged in the navigation body and communicated with the gas storage tank, and the tail gas recovery device is used for recovering waste gas generated by the engine into the gas storage tank.

The tail gas collection device comprises an air suction fan, a drive device, a driving device and a fan air guide cover, wherein the air suction fan and the driving device are arranged in the fan air guide cover, one end of the fan air guide cover is communicated with the exhaust end of the engine through a pipeline and a gas cooling and filtering device, and the other end of the fan air guide cover is communicated with the inlet of the gas storage tank through a pipeline and an air inlet one-way ventilation valve.

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

1. the underwater vehicle can be suitable for underwater impact and underwater medium-high speed navigation working conditions of underwater vehicle underwater speed within the range of 40-150 m/s.

2. The buffering device can realize buffering when the navigation body enters water.

3. The cavitator, which can be rotated, facilitates the formation of larger supercavioles.

4. The side wall air injection system can realize air injection for buffering and can also realize larger supercavitation in water.

5. The buffering air bag can buffer the navigation body when entering water and when in water.

6. The gas accelerating hole is a Tesla valve hole which can accelerate gas under the condition of not consuming energy, meanwhile, the structure of the Tesla valve is a unit structure which is repeated continuously, and the more repeated structure (the smaller the unit size of the special shape of the accelerating hole) under the limited length has the more obvious effect on gas acceleration. The accelerated gas has better gas injection effect after being sprayed.

Based on the reasons, the invention can be widely popularized in the fields of sailing bodies entering water 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 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 front view of a cavitator self-rotating water-inlet buffering device according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

FIG. 3 is an enlarged view of the front portion of a cavitator self-rotating water-entry buffer device in accordance with an embodiment of the present invention.

FIG. 4 is a three-dimensional perspective view of a cavitator and a buffer apparatus according to an embodiment of the present invention.

FIG. 5 is a side view of a carburetor according to an embodiment of the present invention.

FIG. 6 is a schematic structural view illustrating the disconnection of the cushion airbag from the inflation line in accordance with an embodiment of the present invention.

FIG. 7 is a schematic structural view illustrating a configuration in which the airbag and the inflation line are connected together according to an embodiment of the present invention.

FIG. 8 is a schematic view of a gas accelerating pore structure according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of an exhaust gas collecting device according to an embodiment of the present invention.

Fig. 10 is an enlarged view of the portion I in fig. 9.

Fig. 11 is a schematic view of a vehicle during normal driving according to an embodiment of the present invention.

FIG. 12 is a schematic view of a head fairing in accordance with an embodiment of the invention shown removed.

FIG. 13 is a schematic view of a sidewall jet system according to an embodiment of the present invention.

FIG. 14 is a schematic side view of a side fairing according to an embodiment of the invention after detachment.

FIG. 15 is a schematic view of the cavitation device compressing the cushion bladder in accordance with an embodiment of the present invention.

FIG. 16 is a schematic view of a cushion bladder shown disengaged in accordance with an embodiment of the present invention.

FIG. 17 is a schematic view of a cushion bladder after detachment in accordance with an embodiment of the present invention.

In the figure: 1. a head fairing; 2. a navigation body; 3. a buffer device; 301. an outer sleeve; 302. an inner sleeve; 303. a piston rod; 304. a bearing; 305. a piston; 306. pulling the spring; 307. a damper fixing base; 4. a cavitator; 5. a side fairing; 6. a rotation driving device; 601. a helical air passage; 602. rotating the air jet; 603. a central vent pipe; 604. a buffer air cavity; 605. rotating the jet valve; 606. pressing a spring; 607. a through hole; 7. a gas storage tank; 8. a buffer air bag; 801. an inflation pipeline; 802. an inflation valve; 803. a ball bearing; 804. fixing the bolt; 805. a ball pull spring; 806. an annular groove; 807. a loss-of-power type port electromagnet; 9. a sidewall gas injection system; 901. a gas acceleration orifice; 902. a gas injection check valve; 10. an engine; 11. a tail gas collecting device; 1101. an air suction fan; 1102. a drive device; 1103. a fan scoop; 1104. a gas cooling and filtering device; 1105. an air intake one-way vent valve; 1106. an air outlet one-way vent valve.

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 accompanying drawings in conjunction with embodiments.

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 … … surface," "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. 1-17, a cavitator autogyration income water buffer, includes head radome fairing 1, the rear end of head radome fairing 1 and the front end of side radome fairing 5 pass through the separable connection of type of losing electricity electro-magnet, the rear end of side radome fairing 5 and the head of navigation body 2 pass through the separable connection of type of losing electricity electro-magnet, is equipped with cavitator 4 in the side radome fairing 5, cavitator 4 pass through buffer 3 with navigation body 2 is connected, cavitator 5 with buffer 3's output end rotation connection, just be equipped with the drive in the side radome fairing 5 cavitator 4 is around the rotatory rotary drive device 6 of its axis.

The reason why the disk-shaped cavitator 4 rotates to increase the diameter of the supercavitation is that after the navigation body 2 enters water, part of water is attached to the end face of the cavitator 4 due to the viscosity of the water, and the attached water is thrown out outwards along the circumferential direction under the action of inertia and centrifugal force to form a water surface parallel to the end face of the cavitator 4, wherein the diameter of the parallel water surface is larger than that of the cavitator 4, and the diameter of the formed supercavitation is larger than that of the non-rotating cavitator 4.

The head fairing and the side fairing 5 are of an even split type, a plurality of split bodies are hermetically spliced into a whole around the axis of the side fairing 5, and the split bodies are in separable connection; the plurality of the split bodies are fixedly connected in a sealing manner, the joints are designed into special 'weak structures', can be made of strong glue, the adjacent split bodies are bonded together, and can be made of thin plates which are fixedly connected with the adjacent split bodies, so that certain strength is ensured, air resistance in the air during high-speed flight can be borne, the air tightness is kept, and deformation or damage is avoided; the junction between the components of a whole that can function independently is installed and is had explosive device and trigger sensor, is equipped with explosive device in the body 2 of navigating, and explosive device detonating head radome fairing 1 or side radome fairing 5 are triggered to explosive device after the explosive device triggers trigger sensor, become the components of a whole that can function independently with head radome fairing 1 or side radome fairing 5.

And an air storage tank 7 is arranged in the navigation body 2.

The rotary driving device 6 comprises a plurality of spiral air passages 601, the spiral air passages 601 are arranged in the cavitator 4 and are distributed in a spiral radiation manner from the center to the outer edge of the cavitator 4, the outer edge of the cavitator 4 is provided with a rotary air nozzle 602 communicated with the spiral air passages 601, the center of the cavitator 4 is connected with the front end of a connecting pipeline, and the spiral air passages 601 are communicated with the front end of the connecting pipeline; the rear end of the connecting pipeline is communicated with the air storage tank 7. The ejection of the gas entering through the spiral gas duct 601 by the rotating gas jet 602 effects the rotation of the cavitator 4 about its axis.

Buffer 3 includes outer sleeve 301, be equipped with inner sleeve 302 in outer sleeve 301, outer sleeve 301 with part between the inner sleeve 302 forms oil storage chamber, be equipped with piston rod 303 in the inner sleeve 302, the front end of piston rod 303 is worn out outer sleeve 301 with inner sleeve 302 with cavitator 4 passes through bearing 304 and rotates the connection, the rear end of piston rod 303 has piston 305, piston 305 with part between the inner sleeve 302 front end is equipped with the cover and is in pull spring 306 on the piston rod 303, the rear end of outer sleeve 301 is fixed with attenuator fixed baseplate 307, attenuator fixed baseplate 307 with navigation body 2 passes through the electro-magnet and connects.

The connecting pipeline comprises a central vent pipe 603, the front end of the central vent pipe 603 sequentially passes through the damper fixing base 307, the center of the rear end of the outer sleeve 301 and the center of the rear end of the inner sleeve 302, penetrates into the piston rod 303, and is hermetically and slidably connected with the inner wall of the piston rod 303, a buffer air cavity 604 is arranged in the piston rod 303, the rear end of the buffer air cavity 604 is communicated with the front end of the central vent pipe 603 through a rotary air injection valve 605, a pressure spring 606 with the axis coinciding with the axis of the piston rod 303 is arranged in the buffer air cavity 604, the end surface of the central vent pipe 603 abuts against the pressure spring 606, a through hole 607 communicated with the buffer air cavity 604 is arranged at the front end of the piston rod 303, the through hole 607 is communicated with the center of the cavitator 4, and the communication between the spiral air passage 601 and the through hole 607 is realized; the rear end of the central vent pipe 603 is communicated with the outlet of the air storage tank 7.

The side fairing 5 is internally surrounded with a plurality of buffering air bags 7, the buffering air bags 8 are detachably connected with the buffering device 3, the buffering air bags 8 are communicated with the air storage tank 7 through an inflation pipeline 801, and an inflation valve 802 is arranged in the inflation pipeline 801. The inflation pipeline is arranged in the mounting rod fixed on the damper fixing base 307, and an air passage communicated with the air storage tank 7 is arranged in the damper fixing base 307; the buffer air bag material is a composite material of nylon or aramid fiber mixed with nano grade, which not only ensures enough strength and cannot be easily punctured and damaged, but also has extremely strong air tightness, and is waterproof and fireproof.

Buffering gasbag 8 through connecing the mouth with inflation line 801 connects, inflation line 801's tip symmetry processing has the ball mounting hole, the axis perpendicular to of ball mounting hole the axis of inflation line 801 tip, and two install ball 803 in the ball mounting hole respectively, two the top of ball 803 is equipped with a fixing bolt 804 respectively, and two fixing bolt 804 and its correspondence ball 803 fixed connection, two draw spring 805 through the ball between the ball 803 and connect, connect be equipped with in the mouth with fixing bolt 804 matched with annular groove 806, just connect the symmetry on the inner wall of mouth and be equipped with two and lose the electricity type and connect mouthful electro-magnet, lose the electricity type connect have on mouthful electro-magnet 807's the inner wall with ball 803 matched with recess 807. Under the power-on state of the power-off type connection port electromagnet 807, the ball 803 is adsorbed by the power-off type connection port electromagnet 807, part of the ball 803 is clamped in the groove, part of the ball is located in the ball mounting hole, the fixing bolt is inserted in the annular groove 806 along with the synchronous motion of the ball 803 at the moment, so that the reliable connection between the inflation pipeline 801 and the connection port is realized, the ball pulling spring 805 resets after the power-off type connection port electromagnet 807 is powered off, the ball is pulled out of the groove, the fixing bolt 804 is separated from the annular groove 806, the separation of the inflation pipeline 801 and the connection port is realized, and the separation of the cushioning airbag 8 and the inflation pipeline 801 is realized. The electric connection between the power-off type connection port electromagnet 807 and the navigation body 2 can adopt a metal touch piece type, so that when the buffering airbag 8 is separated from the inflation pipeline 801, the lines on the buffering airbag 8 are separated. An electric storage device may be provided in the cushion airbag 8, and the opening and closing of the power-off type port electromagnet 807 may be controlled by an electromagnetic signal.

The side wall of the side fairing 5 is provided with a side wall gas injection system 9, the side wall gas injection system 9 is used for injecting gas to the front end of the side fairing 5, the side wall gas injection system 9 comprises a gas acceleration hole 901, the gas acceleration hole 901 is communicated with the gas storage tank 7 through a gas injection one-way valve 902, and the gas acceleration hole 901 is a Tesla valve hole.

The gas acceleration holes 901 are a special structure which is repeated continuously, and the more the special structure is repeated (the smaller the structure is), the more obvious the gas passing from right to left (fig. 8) is accelerated within a limited ventilation length; the repeated structure of the gas accelerating holes 901 must be arranged as shown in fig. 8, and the gas inlet must be ventilated from right to left as shown in the figure to exert the accelerating effect on the gas, and the shape cannot be reversed, otherwise the effect on the gas is reversed.

The tail end of navigation body 2 is equipped with engine 10, just be equipped with tail gas recovery unit 11 in the navigation body, tail gas recovery unit 11 with gas holder 7 intercommunication, tail gas recovery unit 11 be used for with the waste gas that engine 10 produced retrieves extremely in the gas holder 7.

In the present embodiment, four tail gas collecting devices 11 are adopted, and each tail gas collecting device 11 is configured with one gas storage tank 7, each tail gas collecting device 11 includes two groups of structures connected in series, each group of structures includes an air suction fan 1101, a driving device 1102 for driving the air suction fan 1101 to rotate, and a fan air guide cover 1103, the air suction fan 1101 and the driving device 1102 are located in the fan air guide cover 1103, the driving device 1102 is a shaftless permanent magnet motor, and the air suction fan 1101 is a turbine fan; the two groups of structures are communicated through pipelines, the structure positioned at the rear side is communicated with the exhaust end of the engine 10 through a gas cooling and filtering device 1104, the structure positioned at the front side is communicated with the inlet of the air storage tank 7 through an air inlet one-way vent valve 1105, an air outlet one-way vent valve 1106 is arranged on the air outlet pipeline at the outlet side of the air storage tank 7, and the four air outlet pipelines are respectively provided with two air outlet ends, wherein one air outlet end is positioned at the center of the navigation body 2, and the other air outlet end is positioned at the outer edge of the navigation body 2; the air outlet ends positioned at the center of the navigation body 2 are converged together and are communicated with the air passage communicated with the air charging pipeline 801 in the central air pipe 703 and the damper fixing base 307, and the air outlet ends positioned at the outer edge are communicated with one or more air accelerating holes 901 through the air injection one-way valve 902. The reasonable utilization of the exhaust gas of the engine 10 can be realized through the arrangement of the exhaust gas collecting device 11.

The working principle is as follows:

as shown in fig. 11, the vehicle 2 is launched from an aerial vehicle, and flies in the air, and the stage is mainly affected by air resistance. At this time, the cushion airbag 8 is not inflated; the piston rod 303 is now in an extended state under the action of the pull spring 306 and the hydraulic oil, both the head fairing 1 and the side fairing 5 being present on the navigation body 2.

As shown in fig. 12, when the vehicle 2 is close to the water surface, the explosion device of the head fairing 1 is exploded, and the connecting electromagnet between the head fairing 1 and the side fairing 5 does not adsorb the head fairing 1, so that the head fairing 1 is smoothly decomposed and separated to expose the cavitator 4. Then, the air outlet one-way vent valve 1106 and the inflation valve 802 are opened, and the other valves are closed to inflate the cushion airbag 8, and after a certain air pressure is reached, the inflation is stopped, and the inflation valve 802 is closed.

As shown in fig. 13, the rotary air injection valve 605, the air injection check valve 902 and the air outlet check vent valve 1106 are opened, and the air charging valve 802 is closed, so that there are two air paths after the air comes out of the air storage tank 8: one is entered into the spiral air channel 601 and is ejected outwards from the rotating air jet 602 along the circumferential direction (as shown in fig. 5), so that the cavitator 4 rotates along the axis thereof, and the buffer device 3 and the navigation body 2 do not rotate due to the action of the bearing 304; the other is in the gas accelerating hole 901, the gas is automatically accelerated (without consuming energy) in the gas accelerating hole 901, and is sprayed out from the front end of the gas accelerating hole 901 to the water surface, and the speed of the navigation body entering the water can be rapidly reduced by reverse spraying, so that the purposes of speed reduction and load reduction of the navigation body are achieved. The two processes can be carried out simultaneously, or the air can be supplied to rotate the cavitator 4 first, and then the speed of the reverse air injection is reduced.

As shown in fig. 14, the cavitator 4 is exposed to a large impact water load, and the side cowls 5 may be optionally removed in the same manner as the head cowls 1.

As shown in fig. 15, due to the self-rotation of the cavitator 4, the additional water is driven to rotate together with the cavitator 4 at the moment of water contact, so as to form a planar water layer larger than the cavitator 4, and indirectly increase the diameter of the cavitation bubbles opened by the cavitator 4. After the cavitator 4 touches water, the rear edge of the cavitator 4 rapidly extrudes the buffer air bag 8 filled with air behind the cavitator 4, meanwhile, the piston rod 303 is driven to move rightwards due to load, the compression spring 606 is compressed, the tension spring 306 is pulled, the piston rod 303 presses hydraulic oil into an oil storage cavity, and the process is that the buffer device 3 and the buffer air bag 8 simultaneously carry out buffer load reduction on the water entering process.

As shown in fig. 16, when the cushion airbag 8 and the cushion device 3 reach the ballasting limit and the buffering task is completed, the cushion airbag 8 and the cushion device 3 may be selectively separated to ensure the stability of the navigation body 2 and to prevent the excessively deformed airbag from interfering with the supercavitation.

As shown in fig. 17, when the gas in the gas storage tank 7 is exhausted, the cavitator 4 stops rotating due to the loss of the gas source for rotating the cavitator, and finally the supercavitation is maintained in a stable state until the power of the navigation body 2 is exhausted or the designated position is reached.

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. The utility model provides a cavitator autogyration income water buffer, includes the head radome fairing, the rear end of head radome fairing and the front end separable connection of side radome fairing, the rear end of side radome fairing and the head separable connection of the navigation body are equipped with the cavitator in the side radome fairing, the cavitator pass through buffer with the navigation body is connected, its characterized in that, the cavitator with buffer's output rotates to be connected, just be equipped with the drive in the side radome fairing the cavitator is around the rotatory rotary driving device of its axis.

2. The cavitator self-rotating water-inlet buffering device as claimed in claim 1, wherein an air storage tank is arranged in the navigation body.

3. The cavitation device self-rotating water inlet buffering device according to claim 2, wherein the rotation driving device comprises a plurality of spiral air passages, the spiral air passages are arranged in the cavitation device and are distributed in a spiral radiation manner from the center of the cavitation device to the outer edge, the outer edge of the cavitation device is provided with a rotary air nozzle communicated with the spiral air passages, the center of the cavitation device is connected with the front end of the connecting pipeline, and the spiral air passages are communicated with the front end of the connecting pipeline; the rear end of the connecting pipeline is communicated with the gas storage tank.

4. The cavitation device self-rotation water-entry buffering device as claimed in claim 3, wherein the buffering device comprises an outer sleeve, an inner sleeve is arranged in the outer sleeve, an oil storage cavity is formed by the outer sleeve and the part between the inner sleeves, a piston rod is arranged in the inner sleeve, the front end of the piston rod penetrates out of the outer sleeve and the inner sleeve and the cavitation device are rotatably connected through a bearing, a piston is arranged at the rear end of the piston rod, a pull spring sleeved on the piston rod is arranged on the part between the piston and the front end of the inner sleeve, a damper fixing base is fixed at the rear end of the outer sleeve and is connected with the navigation body through the damper fixing base.

5. A cavitator self-rotating water-entry buffer device according to claim 4, the connecting pipeline comprises a central vent pipe, the front end of the central vent pipe sequentially penetrates through the damper fixing base, the center of the rear end of the outer sleeve and the center of the rear end of the inner sleeve and penetrates into the piston rod, and is hermetically and slidably connected with the inner wall of the piston rod, a buffer air cavity is arranged in the piston rod, the rear end of the buffer air cavity is communicated with the front end of the central vent pipe through a rotary air injection valve, a compression spring with the axis coincident with the axis of the piston rod is arranged in the buffer air cavity, the end surface of the central vent pipe is pressed against the compression spring, the front end of the piston rod is provided with a through hole communicated with the buffer air cavity, the through hole is communicated with the center of the cavitator, so that the spiral air passage is communicated with the through hole; the rear end of the central vent pipe is communicated with the outlet of the gas storage tank.

6. The cavitator self-rotating water inlet buffering device as claimed in claim 2, wherein a plurality of buffering air bags are arranged in the side fairing around the buffering device, the buffering air bags are detachably connected with the buffering device, the buffering air bags are communicated with the air storage tank through an inflation pipeline, an inflation valve is arranged in the inflation pipeline, and the inflation pipeline is installed on the buffering device.

7. A cavitator self-rotating water-entry buffer device according to claim 6, the buffering air bag is connected with the inflation pipeline through a connecting port, the inlet of the buffering air bag is fixedly connected with the connecting port, ball mounting holes are symmetrically processed at the end part of the inflation pipeline, the axis of the ball mounting hole is vertical to the axis of the end part of the inflation pipeline, and the two ball mounting holes are respectively provided with a ball, the upper parts of the two balls are respectively provided with a fixed bolt, the two fixing bolts are fixedly connected with the corresponding balls, the two balls are connected through ball pull springs, an annular groove matched with the fixing bolts is arranged in the connecting port, and the inner wall of the connection port is symmetrically provided with two power-off type connection port electromagnets, and the inner wall of each power-off type connection port electromagnet is provided with a groove matched with the balls.

8. The cavitator self-rotating water inlet buffering device as claimed in claim 2, wherein a side wall gas injection system is arranged on the side wall of the side fairing and used for injecting gas to the front end of the side fairing, the side wall gas injection system comprises a gas acceleration hole, the rear end of the gas acceleration hole is communicated with the gas storage tank through a gas injection one-way valve, and the gas acceleration hole is a tesla valve hole.

9. The cavitator self-rotating water inlet buffering device as claimed in claim 2, wherein an engine is provided at the tail end of the navigation body, and a tail gas recovery device is provided in the navigation body, the tail gas recovery device is communicated with the gas storage tank, and the tail gas recovery device is used for recovering exhaust gas generated by the engine into the gas storage tank.

10. The cavitator self-rotating water inlet buffering device as claimed in claim 9, wherein the tail gas collecting device comprises an air suction fan, a driving device for driving the air suction fan to rotate and a fan air guide hood, the air suction fan and the driving device are arranged in the fan air guide hood, one end of the fan air guide hood is communicated with the exhaust end of the engine through a pipeline and a gas cooling and filtering device, and the other end of the fan air guide hood is communicated with the inlet of the air storage tank through a pipeline and an air inlet one-way ventilation valve.