Liquid oxygen phase change icebreaking bomb carried on basis of unmanned aerial vehicle and using method of liquid oxygen phase change icebreaking bomb

Abstract

The invention relates to a liquid oxygen phase change icebreaking bomb carried on the basis of an unmanned aerial vehicle, which comprises the unmanned aerial vehicle, a remote control degree-of-freedom manipulator, a liquid oxygen phase change icebreaking bomb and a control and detonation remote controller, the lower part of the unmanned aerial vehicle is connected with the remote control degree-of-freedom manipulator, and the liquid oxygen phase change icebreaking bomb is grabbed and released by the remote control degree-of-freedom manipulator; according to the liquid oxygen phase change icebreaking bomb, the front end of a shell is connected with an icebreaking cone, the tail of the shell is connected with a tail component, a liquid injection cavity is formed in the shell, the tail of the liquid injection cavity is sealed through a sealing component, the sealing component comprises a sealing shell, a liquid injection pipe is embedded in the middle of the sealing shell, and the front end of the liquid injection pipe extends to the front end of the liquid injection cavity; liquid oxygen is injected into the liquid injection cavity through the liquid injection pipe, the liquid injection pipe is wrapped with an inflammable soft body, the sealing shell is further provided with an exhaust hole and a detonating hole which are communicated with each other, an exploder is arranged in the detonating hole, and an ignition part of the exploder penetrates through the sealing piece, extends into the liquid injection cavity and is in contact with the inflammable soft body. The ice breaking machine can efficiently and safely complete ice breaking work in a pollution-free mode.

Description

Technical Field

[0001] The present invention relates to the technical field of river and ocean ice disaster management, and in particular to a liquid oxygen phase change icebreaker bomb carried by an unmanned aerial vehicle. Background Art

[0002] The main icebreaking methods nowadays include icebreakers, underwater ice blasting, drilling icebreaking and icebreaking bombs. Icebreakers rely on their own gravity to break sea ice, and their range of action is wide and the effect is obvious, but they consume huge resources and are not suitable for breaking ice on the shore of small ports, and still cannot solve the problem of cargo ships passing through small ports. Artificial drilling and explosion icebreaking and underwater ice blasting have the advantages of flexibly responding to complex ports, ice floods and other environments, but the hazards of explosive explosions cause considerable damage to surrounding fishing boats, buildings and other facilities, and the danger of explosive bag explosions is self-evident. Both aircraft bombing and large-caliber artillery bombing have the characteristics of flexible icebreaking and wide breaking range, but they pose a certain threat to surrounding facilities, houses and other engineering structures, and their safety cannot be guaranteed. In recent years, drone technology has developed rapidly. The method of using drones to drop icebreakers to break sea ice can quickly, efficiently and on a large scale to break sea ice and ensure the safe and normal operation of ports. Using drone groups to drop liquid oxygen phase change icebreakers can effectively solve the problems of traditional blasting and icebreaking technology that are inconvenient to implement, pollute the environment, and seriously threaten the surrounding environment and the safety of nearby power and water conservancy facilities. It is more practical for emergency rescue, and is of great significance to the control of coastal and river ice disasters, providing new ideas for emergency rescue in society. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a liquid oxygen phase change icebreaker bomb carried by an unmanned aerial vehicle, which can complete the icebreaking work efficiently, safely and without pollution.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A liquid oxygen phase change icebreaker bomb based on a drone, comprising a drone, a remote-controlled freedom manipulator, a liquid oxygen phase change icebreaker bomb, and a control and detonation remote controller. The remote-controlled freedom manipulator is connected below the drone, and the liquid oxygen phase change icebreaker bomb is grasped and released by the remote-controlled freedom manipulator.

[0006] The liquid oxygen phase-change icebreaker bomb comprises an icebreaker cone, a shell, a tail component, an injection tube, a flammable soft body, a sealing component, a detonator, and liquid oxygen. The front end of the shell is detachably connected to the icebreaker cone through a thread. The icebreaker cone is a cone. The tail of the shell is detachably connected to the tail component through a thread. An injection cavity is provided in the shell. The tail of the injection cavity is sealed by a sealing component. A sealing rubber ring is provided between the sealing component and the injection cavity. The sealing component comprises a sealing shell. The sealing shell is cooperatively connected to the cavity wall of the shell. A pipe-through hole is provided through the middle of the sealing shell. The injection tube is nested in the pipe-through hole. The front end of the injection tube extends to the front end of the injection cavity. Liquid oxygen is injected into the injection cavity through the injection tube. The outside of the injection tube wraps the flammable soft body. The sealing shell is also provided with a through exhaust hole and a detonation hole. A detonator is provided in the detonation hole. The ignition part of the detonator extends into the injection cavity through the sealing component and contacts with the flammable soft body.

[0007] A liquid guide hole is arranged on the side wall of the front end of the liquid injection tube, and a liquid injection hole is arranged at the tail end of the liquid injection tube.

[0008] The tail component comprises a sleeve, which is sleeved on the cylinder at the tail of the shell, and the sleeve is connected with the outer thread of the cylinder through the internal thread, and a plurality of tail wings are evenly distributed on the outer circumference of the sleeve.

[0009] The flammable soft material includes sponge, fiber cotton or cotton.

[0010] A method for using a liquid oxygen phase change icebreaker bomb carried by an unmanned aerial vehicle comprises the following steps:

[0011] 1) When coastal and river ice disasters occur, determine the number of drones, the number of liquid oxygen phase change icebreaker bombs, the bomb range, and the detonator delay time;

[0012] 2) Set the bombing position, and the ground personnel control the remote-controlled freedom manipulator to grab the liquid oxygen phase change icebreaker bomb and fly to the designated position to release the liquid oxygen phase change icebreaker bomb; after the bombing is completed, the UAV automatically returns;

[0013] 3) Liquid oxygen phase change icebreaker bombs penetrate the ice layer due to gravity. The ignition of the detonator will ignite the flammable software that has absorbed liquid oxygen, triggering a liquid oxygen phase change explosion and completing the ice breaking.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides a liquid oxygen phase change icebreaker bomb based on a drone. After detonation and ignition, liquid oxygen assists combustion, and a phase change from liquid to gas occurs, causing an explosion. When an ice disaster occurs in coastal areas or rivers, the drone is controlled to mount a liquid oxygen phase change icebreaker bomb, and the impact of gravity free fall on the ice, as well as the explosion shock wave generated by the explosion and the effect of the explosion gas on the ice, complete the icebreaking work efficiently, safely and without pollution.

[0016] The use of UAV-mounted liquid oxygen phase-change icebreaker technology can effectively solve the problems of traditional blasting icebreaking technology, which is inconvenient to implement, pollutes the environment, and seriously threatens the surrounding environment and the safety of nearby power and water conservancy facilities. It is more practical for emergency rescue and has great significance for controlling coastal and river ice disasters, providing a new means for emergency rescue in society. Compared with explosives, icebreaking is safer and will not cause secondary disasters, and the crushing effect is more large-scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a cross-sectional view of a liquid oxygen phase change icebreaker bomb.

[0019] Figure 3 Schematic diagram of an icebreaker.

[0020] Figure 4 A schematic diagram of the shell.

[0021] Figure 5 A schematic diagram of a sealing component.

[0022] Figure 6 Schematic diagram of the tail component.

[0023] Figure 7 Schematic diagram of the injection tube.

[0024] In the figure: UAV 1, remote-controlled DOF manipulator 2, liquid oxygen phase change icebreaker bomb 3, icebreaker cone 4, shell 5, tail component 6, liquid injection tube 7, flammable software 8, sealing component 9, detonator 10, liquid injection cavity 11, sealing rubber ring 12, liquid oxygen 13, threaded column 41, cylinder 51, sleeve 61, tail wing 62, liquid guide hole 71, liquid injection hole 72, sealed shell 91, pipe hole 92, exhaust hole 93, detonation hole 94, seal 95. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] like Figure 1-Figure 7 A liquid oxygen phase change icebreaker bomb based on a drone, comprising a drone 1, a remote-controlled freedom manipulator 2, a liquid oxygen phase change icebreaker bomb 3, and a control and detonation remote controller. The drone 1 is connected to the remote-controlled freedom manipulator 2 below, and the liquid oxygen phase change icebreaker bomb 3 is caught and released by the remote-controlled freedom manipulator 2.

[0029] The UAV 1 has the functions of carrying loads and remotely controlling bombing, and can realize bombing and control the UAV to hover by remote control by the ground UAV operator.

[0030] The remote-controlled DOF manipulator 2 has a mass of 1 to 1.5 kg and is made of alloy. Its purpose is to control the throwing of ice-breaking bombs. Ground personnel are responsible for manipulating it to open its mechanical claws.

[0031] The liquid oxygen phase change icebreaker bomb 3 includes an icebreaker cone 4, a shell 5, a tail component 6, an injection tube 7, a flammable software 8, a sealing component 9, a detonator 10, and liquid oxygen 13. The front end of the shell 5 is threadedly detachably connected to the icebreaker cone 4. The icebreaker cone 4 is a cone. The icebreaker cone 2 is made of high-carbon steel in one piece and functions to initially crush the ice body. It provides a counterweight for the liquid oxygen phase change icebreaker bomb 1 and is the component with the highest strength in the entire bomb body.

[0032] The shell 5 is made of an integrated high-hardness plastic material, which has a good ability to seal liquids and does not excessively attenuate the huge pressure generated by the liquid oxygen phase change explosion, thereby affecting the range of action of the liquid oxygen phase change icebreaker bomb.

[0033] The tail of the shell 5 is connected to the tail member 6 by threaded disassembly. The tail member 6 includes a sleeve 61, which is sleeved on the cylinder at the tail of the shell 5. The sleeve 61 is connected with the outer thread of the cylinder through the internal thread, and a plurality of tail wings 62 are evenly distributed on the outer circumference of the sleeve 61. The tail member 6 is used to ensure the flight stability of the projectile. The whole is made of hard plastic. Its mass is smaller than the ice cone 2 located at the front end of the icebreaker, so that the center of gravity is forward, which increases the impact of the icebreaker on the ice by gravity free fall, ensures gravity penetration, and the strength and hardness meet the requirements of high and low altitude penetration of ice without damage, and also has the advantages of high corrosion resistance and oxidation resistance.

[0034] A liquid injection cavity 11 is provided in the shell 5, and the tail of the liquid injection cavity 11 is sealed by a sealing component 9. A sealing rubber ring 12 is provided between the sealing component 9 and the liquid injection cavity 11. The sealing component 9 includes a sealing shell 91, and the sealing shell 91 is connected to the cavity wall of the shell 5. A through-hole 92 is provided in the middle of the sealing shell 91, and a liquid injection tube 7 is nested in the through-hole 92. The front end of the liquid injection tube 7 extends to the front end of the liquid injection cavity 11. Liquid oxygen 13 is injected into the liquid injection cavity 11 by the liquid injection tube 7. A liquid guide hole 71 is provided on the side wall of the front end of the liquid injection tube 7, and a liquid injection hole 72 is provided at the tail of the liquid injection tube 7.

[0035] The outside of the liquid injection tube 7 is wrapped with a flammable soft body 8, and the sealed shell 91 is also provided with a through exhaust hole 93 and a detonation hole 94. The exhaust hole 93 is used to release the gasified oxygen to maintain the air pressure.

[0036] The detonator 10 is arranged in the detonation hole 94, and the ignition part of the detonator 10 extends into the liquid injection cavity 11 through the sealing member 95 and contacts the flammable software 8. The detonator 10 is a prior art, which is obtained by connecting a single chip microcomputer and an electric igniter in series. The single chip microcomputer can receive a remote signal to close the series circuit, and the electric igniter ignites to generate sparks to ignite the flammable material, thereby playing a role in controlling remote detonation.

[0037] The inflammable soft body 8 comprises sponge, fiber cotton or cotton. Its deformation can be controlled to be fixed on the injection pipe 5, and its effect is to help the complete combustion of liquid oxygen.

[0038] A method for using a liquid oxygen phase change icebreaker bomb carried by an unmanned aerial vehicle comprises the following steps:

[0039] 1) When coastal and river ice disasters occur, determine the number of drones, the number of liquid oxygen phase change icebreaker bombs, the bomb range, and the detonator delay time;

[0040] 2) Set the bombing position, and the ground personnel control the remote-controlled freedom manipulator to grab the liquid oxygen phase change icebreaker bomb and fly to the designated position to release the liquid oxygen phase change icebreaker bomb; after the bombing is completed, the UAV automatically returns;

[0041] 3) The liquid oxygen phase change icebreaker bomb penetrates the ice layer due to gravity, and the detonator ignites the flammable software that has absorbed the liquid oxygen, causing a liquid oxygen phase change explosion and completing the ice breaking.

[0042] The ice-breaking principle of liquid oxygen phase change icebreaker bomb is as follows:

[0043] After being dropped by a drone, the liquid oxygen phase change icebreaker bomb invades the ice layer by gravity, creating a pit in the ice and leaving the bomb body inside the pit. After the detonator is ignited, it will ignite the flammable software that has absorbed the liquid oxygen. With the help of liquid oxygen, the flammable materials burn and explode violently. The temperature and pressure in the pit of the bomb body rise rapidly. The heat generated by the combustion causes the other liquid oxygen that does not participate in the combustion to change phase from liquid to gas. The volume of the liquid oxygen expands by more than 800 times, generating high-pressure gas to break the sea ice.

[0044] Due to the phase change explosion of liquid oxygen, liquid oxygen is converted into saturated gas, which expands instantly and does work externally. The energy released when the liquid oxygen phase change icebreaker bomb explodes is calculated using the following formula:

[0045]

[0046] Where: W is the energy J released when the liquid oxygen phase change icebreaker explodes; P is the absolute pressure of the gas in the shell Pa; P1 is the standard atmospheric pressure, which is 101325Pa; V is the volume of liquid oxygen m 3 ; K is the adiabatic index of oxygen.

[0047] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. In addition, the various different embodiments of the present invention can also be arbitrarily combined, as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

[0048] In order to make the purpose, technical scheme and technical effect of the present invention clearer, the technical scheme in the embodiment of the present invention is now clearly and completely described. However, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. In combination with the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example

[0050] A liquid oxygen phase-change icebreaker bomb based on an unmanned aerial vehicle comprises an unmanned aerial vehicle 1, a remote-controlled freedom manipulator 2, a liquid oxygen phase-change icebreaker bomb 3, and a control and detonation remote controller. The remote-controlled freedom manipulator 2 is connected to the lower part of the unmanned aerial vehicle 1, and the liquid oxygen phase-change icebreaker bomb 3 is caught and released by the remote-controlled freedom manipulator 2. The unmanned aerial vehicle 1 is a DJI TR100, the main body is made of an integrated carbon fiber material, the number of rotors is 4 axes and 8 propellers, the wheelbase of the whole machine is 2039 mm, the unfolded dimensions are 1587*1594*891 mm, the empty machine mass is 60 kg, the maximum load is 50 kg, the maximum flight speed is 20 m / s, and the maximum wind resistance level is greater than level 5.

[0051] The liquid oxygen phase change icebreaker bomb 3 includes an icebreaker cone 4, a shell 5, a tail component 6, an injection tube 7, a flammable software 8, a sealing component 9, a detonator 10, and liquid oxygen 13. The front end of the shell 5 is threadedly detachably connected to the icebreaker cone 4. The icebreaker cone 4 is a cone. The icebreaker cone 4 is made of high-carbon steel in one piece, with a side length of 66 mm and a bottom radius of 28 mm. The icebreaker cone 4 is connected to the shell 5 through a trapezoidal thread on a threaded column 41.

[0052] A liquid injection cavity 11 is provided in the shell 5, and the tail of the liquid injection cavity 11 is sealed by a sealing component 9. A sealing rubber ring 12 is provided between the sealing component 9 and the liquid injection cavity 11. The sealing component 9 includes a sealing shell 91, and the sealing shell 91 is connected to the cavity wall of the shell 5. A pipe hole 92 is provided through the middle of the sealing shell 91, and a liquid injection tube 7 is nested in the pipe hole 92. The front end of the liquid injection tube 7 extends to the front end of the liquid injection cavity 11. Liquid oxygen 13 is injected into the liquid injection cavity 11 by the liquid injection tube 7. The maximum diameter of the shell 5 is 91 mm and the total length is 265 mm. The liquid injection cavity in the shell shell 5 is filled with liquid oxygen 13, and can accommodate a maximum of 1 kg of liquid oxygen.

[0053] The total length of the injection tube 7 is 260 mm. A liquid guide hole 71 with a diameter of 3 mm is provided on the side wall of the front end of the injection tube 7. A liquid injection hole 72 with a diameter of 2 mm is provided at the rear end of the injection tube 7.

[0054] The outside of the injection tube 7 is wrapped with a flammable soft body 8. The sealed shell 91 is also provided with a through exhaust hole 93 and a detonation hole 94. The exhaust holes 93 are four evenly distributed around the circumference, with a radius of 2.5 mm. The detonator 10 is arranged in the detonation hole 94, and the radius of the detonation hole 94 is 1.5 mm. The ignition part of the detonator 10 passes through the sealing member 95 and extends into the injection cavity 11, and contacts the flammable soft body 8. The flammable soft body 8 is three groups of equal-length cylindrical cotton, with a length of 60 mm.

[0055] The tail of the shell 5 is connected to the tail component 6 by threaded disassembly. The tail component 6 includes a sleeve 61, which is sleeved on the cylinder at the tail of the shell 5. The sleeve 61 is connected to the trapezoidal thread of the cylinder 51 at the tail of the shell through an internal thread. Four tail wings 62 are evenly distributed on the outer periphery of the sleeve 61.

[0056] The severe sea ice disaster in winter brings great difficulties to sea transportation. Liquid oxygen phase change icebreaker bombs are used to break sea ice. The specific steps are as follows:

[0057] 1) To determine the location of the crushing area, 8-9 liquid oxygen phase change icebreaker bombs are needed, and the bombs are dropped in a triangle layout.

[0058] 2) Determine that the number of drones 1 is 3, the number of bombs dropped is 9, the bomb range is 3m, and the delay time of the detonator 10 is 5s.

[0059] 3) Check whether the UAV 1 is operating normally and whether the liquid oxygen phase change icebreaker bomb 3 has any sealing problem.

[0060] 4) The liquid oxygen phase change icebreaker bomb 1 is filled with liquid oxygen, and the liquid oxygen filling device conduit is connected to the liquid injection hole 22. During the process, it is ensured that there is no open flame around, and then the bomb body is mounted on the remote-controlled freedom manipulator 2.

[0061] 5) Setting the bombing position, operating and detonating the remote controller to control the UAV 1 to fly and hover over the landing position, and dropping the liquid oxygen phase change icebreaker bomb 3 to break the sea ice.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and basic spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid oxygen phase change icebreaker bomb based on a drone. It is characterized in that It includes a drone, a remote-controlled freedom manipulator, a liquid oxygen phase-change icebreaker bomb, and a control and detonation remote controller. The drone is connected to a remote-controlled freedom manipulator below, and the liquid oxygen phase-change icebreaker bomb is grasped and released by the remote-controlled freedom manipulator. The liquid oxygen phase-change icebreaker bomb comprises an icebreaker cone, a shell, a tail component, an injection tube, a flammable soft body, a sealing component, a detonator, and liquid oxygen. The front end of the shell is detachably connected to the icebreaker cone through a thread. The icebreaker cone is a cone. The tail of the shell is detachably connected to the tail component through a thread. An injection cavity is provided in the shell. The tail of the injection cavity is sealed by a sealing component. A sealing rubber ring is provided between the sealing component and the injection cavity. The sealing component comprises a sealing shell. The sealing shell is cooperatively connected to the cavity wall of the shell. A pipe-through hole is provided through the middle of the sealing shell. The injection tube is nested in the pipe-through hole. The front end of the injection tube extends to the front end of the injection cavity. Liquid oxygen is injected into the injection cavity through the injection tube. The outside of the injection tube wraps the flammable soft body. The sealing shell is also provided with a through exhaust hole and a detonation hole. A detonator is provided in the detonation hole. The ignition part of the detonator extends into the injection cavity through the sealing component and contacts with the flammable soft body.

2. The liquid oxygen phase change icebreaker bomb carried by a drone according to claim 1, It is characterized in that A liquid guide hole is arranged on the side wall of the front end of the liquid injection tube, and a liquid injection hole is arranged at the tail end of the liquid injection tube.

3. The liquid oxygen phase change icebreaker bomb carried by a drone according to claim 1, It is characterized in that The tail component comprises a sleeve, which is sleeved on the cylinder at the tail of the shell, and the sleeve is connected with the outer thread of the cylinder through the internal thread, and a plurality of tail wings are evenly distributed on the outer circumference of the sleeve.

4. The liquid oxygen phase change icebreaker bomb carried by a drone according to claim 1, It is characterized in that The flammable soft material includes sponge, fiber cotton or cotton.

5. The method for using the liquid oxygen phase change icebreaker bomb carried by a drone according to claim 1, It is characterized in that The steps include: 1) When coastal and river ice disasters occur, determine the number of drones, the number of liquid oxygen phase change icebreaker bombs, the bomb range, and the detonator delay time; 2) Set the bombing position, and the ground personnel control the remote-controlled freedom manipulator to grab the liquid oxygen phase change icebreaker bomb and fly to the designated position to release the liquid oxygen phase change icebreaker bomb; after the bombing is completed, the UAV automatically returns; 3) Liquid oxygen phase change icebreaker bombs penetrate the ice layer due to gravity. The ignition of the detonator will ignite the flammable software that has absorbed liquid oxygen, triggering a liquid oxygen phase change explosion and completing the ice breaking.

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