A UAV with a twin-engine magnetic detection layout and a rear-mounted tail detection cabin

Abstract

The present invention relates to the technical field of unmanned aerial vehicles, and specifically to a unmanned aerial vehicle with a rear-mounted tail probe cabin and a twin-engine magnetic detection layout, comprising a fuselage, and a magnetic detection device connected to the rear of the fuselage; the tail of the fuselage is provided with a tail probe cabin made of non-magnetic material, the tail probe cabin includes a transition section smoothly connected to the fuselage at the front, an equal straight section in the middle, and a horizontal section at the rear, the transition section and the equal straight section are tilted upward at a certain angle, and the upward angle ensures that the aircraft's ground-rubbing angle is not affected; the magnetic detection device is arranged in the horizontal section. The unmanned aerial vehicle disclosed in the present invention has a tail probe cabin arranged at the rear of the fuselage of the unmanned aerial vehicle, the tail probe cabin is made of non-magnetic material and extends out of the rear of the fuselage away from the magnetic interference caused by the electrical equipment of the fuselage, protects the magnetic detection equipment in the tail probe cabin, and minimizes the interference of the magnetic detection equipment during detection, thereby greatly improving the detection accuracy of the magnetic detection equipment on the unmanned aerial vehicle and also improving the reliability of the detection results.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicles, and in particular to an unmanned aerial vehicle with a twin-engine magnetic detection layout and a rear-mounted tail detection cabin. Background Art

[0002] Unmanned aerial vehicles (UAVs) are increasingly used in industry and the military. Some existing UAVs can carry magnetic detection equipment to perform corresponding detection tasks. However, the size of the UAV body is limited, and the installed magnetic detection equipment is close to the fuselage, which is easily affected by the magnetic interference of the fuselage. This affects the detection work of the magnetic detection equipment and reduces the accuracy of the detection results.

[0003] Some existing drones have set up anti-magnetic interference casing structures to resist the magnetic interference caused by the electromagnetic components inside the fuselage to the magnetic detection equipment, but the problem of magnetic interference cannot be completely solved because the magnetic detection equipment is set too close to the fuselage and electrical equipment. Some drones also place the magnetic detection equipment externally, through external suspension, suffixes, etc., and keep the magnetic detection equipment as far away from the fuselage as possible, but then the magnetic detection equipment will shake at high speed, which will also directly affect the detection accuracy of the magnetic detection equipment and reduce the detection results.

[0004] Therefore, the existing layout method of drones equipped with magnetic detection equipment for detection has defects. In order to improve the detection accuracy of the drone's magnetic detection equipment, it is necessary to optimize and improve the layout method and structure of the magnetic detection equipment installed on the drone. Therefore, it is necessary to propose a more reasonable technical solution to solve the shortcomings of the existing technology. Summary of the invention

[0005] In order to solve the defects of the prior art mentioned above, the present invention provides an unmanned aerial vehicle with a twin-engine magnetic detection layout and a rear-mounted tail detection cabin, aiming to set up a special tail detection cabin connected to the fuselage, so as to distance and shield the magnetic interference from the unmanned aerial vehicle through the tail detection cabin, and at the same time, the tail detection cabin is set as an integrated structure with a smooth transition connection with the fuselage, so as to minimize the jitter of the magnetic detection equipment, thereby improving the detection accuracy of the magnetic detection equipment as a whole.

[0006] In order to achieve the above object, the technical solution specifically adopted by the present invention is:

[0007] A twin-engine magnetic detection layout unmanned aerial vehicle with a rear-mounted tail detection cabin comprises a fuselage, and a magnetic detection device is arranged at the rear of the fuselage; the tail of the fuselage is provided with a tail detection cabin made of non-magnetic material, the tail detection cabin comprises a transition section smoothly connected to the fuselage at the front, an equal straight section in the middle and a horizontal section at the rear, the transition section and the equal straight section are tilted upward at a certain angle, and the upward angle ensures that the aircraft's ground-rubbing angle is not affected; the magnetic detection device is arranged in the horizontal section of the tail detection cabin.

[0008] The above-disclosed UAV with magnetic detection layout can achieve more precise detection and more accurate detection results by setting a tail detection cabin at the rear of the fuselage to keep away from and isolate the magnetic interference generated by the fuselage. The magnetic detection equipment in the tail detection cabin can achieve more precise detection and more accurate detection results. The tail detection cabin is smoothly connected to the fuselage, and the transition section can increase the rigidity of the tail detection cabin and integrate the airflow pattern, thereby avoiding the phenomenon of large-scale shaking of the tail detection cabin. The straight section can adjust the length and height of the tail detection cabin. The length of the straight section can be set according to actual needs. The horizontal section is used to accommodate the magnetic detection equipment, so that the magnetic detection equipment maintains a sufficient distance from the fuselage to achieve accurate detection by the magnetic detection equipment.

[0009] Furthermore, the tail probe cabin used in the present invention can use a variety of structures with adjustable length of equal straight sections, which is not determined exclusively. Here, the structure of the tail probe cabin is optimized and one feasible option is given: the equal straight section included in the tail probe cabin includes a plurality of equal straight parts connected and spliced. When such a solution is adopted, the equal straight section is connected and spliced ​​by a plurality of equal straight parts, and the length of the equal straight section can be adjusted. At the same time, the height of the magnetic detection equipment can be changed due to the upward angle of the tail probe cabin.

[0010] Furthermore, in the UAV disclosed in the present invention, the setting method, setting number and setting angle of the magnetic detection equipment can be determined according to actual needs and are not uniquely determined. The direction of the magnetic detection equipment can be arranged along the heading, along the horizontal gradient or along the vertical gradient according to needs. At the same time, the number of magnetic detection equipment can also be set to one or more. Therefore, at least one magnetic detection device is set in the straight section described in the present invention.

[0011] Furthermore, the above content explains the setting method of the magnetic detection equipment. Here, the layout method of setting the magnetic detection equipment is optimized, and one of the feasible options is given: the horizontal section of the tail probe cabin includes a number of parts connected by splicing, and the sizes can be different. When splicing, a smooth rectification design can also be made. When such a solution is adopted, the straight section can provide space and position for installing multiple magnetic detection equipment through splicing, while maintaining a high degree of integrity, reducing the bloated structure, increased flight resistance or abnormal jitter caused by the installation of multiple magnetic detection equipment.

[0012] Furthermore, the tail probe cabin used in the present invention is connected to the fuselage of the aircraft, and changes the airflow characteristics of the aircraft during the flight of the aircraft. Here, the shape of the tail probe cabin is optimized to make the gas flow on the fuselage side better during the flight of the aircraft. The tail probe cabin includes a main structure and a skin arranged on the main structure, and the main structure also includes a mounting structure for arranging various accessories. When such a scheme is adopted, the surface of the tail probe cabin is smoother, the friction resistance generated is small, the gas separation generated is small, and less resistance increment is generated during the flight of the aircraft. At the same time, due to the setting of the tail probe cabin, the yaw static stability of the aircraft is optimized.

[0013] Furthermore, a magnetic detection device is arranged on the tail detection cabin, and the supporting accessories of the magnetic detection device can be arranged inside the tail detection cabin and installed and fixed by the installation structure of the tail detection cabin. The installation structure can adopt a variety of feasible schemes and is not fixed in a single way. It is optimized here and the following specific feasible scheme is given. The installation structure at least includes a connecting frame and / or an equipment bracket.

[0014] Furthermore, the maintainability of the tail probe cabin is optimized, and a feasible solution is provided as follows: a maintenance cover is provided on the tail probe cabin.

[0015] Furthermore, the wings of the UAV can be arranged in a variety of ways, and the setting of the wing control surfaces can also be selected according to the actual situation of the aircraft, and is not uniquely determined. Here, an optimized design is carried out and the following feasible solution is given: the wing adopts an upper wing, the outer control surface of the wing is an aileron, and the flaperons and flaps are arranged in sequence along the wingspan toward the fuselage. When such a solution is adopted, the UAV can maintain good lift-drag characteristics and roll controllability.

[0016] Going further, the overall layout of the drone is optimized. Here is a feasible solution: an engine is arranged under the wing, and a tail strut is arranged at the rear of the engine. The tail strut extends toward the tail and connects to the fixed tail wing. When such a solution is adopted, at least two engines are arranged on the drone fuselage to form a double tail strut structure. The tail wing is fixed by the tail strut, and a position can be reserved for the tail to connect to the tail probe cabin. The arrangement of at least two engines also improves the drone's ability to resist risks. When one or more engines fail, the remaining normal engines can be used to return or make an emergency landing nearby.

[0017] Furthermore, the tail of the drone can be arranged in a variety of ways, and there is no single way to determine it. Here is a feasible option: when the number of tail struts is two, the two ends of the tail are respectively connected to the tail struts, and the tail is provided with a rudder and an elevator for controlling the heading and pitch of the drone. When such a solution is adopted, the drone can maintain good controllability in heading and pitch directions during navigation.

[0018] Furthermore, in order to improve the long-distance communication capability and reliability of the UAV, a satellite communication device may be provided inside the fuselage.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The UAV disclosed in the present invention has a tail detection cabin arranged at the tail of the UAV fuselage. The tail detection cabin uses non-magnetic materials to keep away and isolate the magnetic interference caused by the electrical equipment of the fuselage, thereby protecting the magnetic detection equipment in the tail detection cabin and minimizing the interference of the magnetic detection equipment during detection, thereby greatly improving the detection accuracy of the UAV magnetic detection equipment and also improving the reliability of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a top-down diagram of the drone layout.

[0023] Figure 2 A side view schematic diagram of the drone layout.

[0024] Figure 3 A schematic side view of a layout for installing a magnetic detection device in the tail probe compartment.

[0025] Figure 4 A schematic side view of another layout for installing multiple magnetic detection devices in the tail exploration compartment.

[0026] In the above drawings, the meanings of the various marks are: 1. fuselage; 2. engine; 3. wing; 4. aileron; 5. flaperon; 6. flap; 7. rudder; 8. tail probe compartment; 801. transition section; 802. straight section; 803. horizontal section; 9. elevator; 10. tail support; 11. satellite communication device; 12. magnetic detection equipment; 13. accessories. DETAILED DESCRIPTION

[0027] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0028] It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific layout and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments set forth herein.

[0029] Example

[0030] In view of the problems that existing drones equipped with magnetic detection equipment have large magnetic interference, large jitter, and inaccurate detection results, this embodiment optimizes and improves the structure of the drone and proposes the following feasible solution.

[0031] Specifically, the technical solution disclosed in this embodiment is as follows:

[0032] like Figure 1 , Figure 2 As shown, a twin-engine magnetic detection layout UAV with a rear-mounted tail detection cabin comprises a fuselage 1, a magnetic detection device 12 and an accessory 13 are arranged at the rear of the fuselage 1, and the accessory 13 is a matching magnetic detection device component; a tail detection cabin 8 made of non-magnetic material is arranged at the rear of the fuselage 1, and the tail detection cabin 8 comprises a transition section 801 smoothly connected to the fuselage 1 at the front, an equal straight section 802 in the middle, and a horizontal section 803 at the rear, the transition section 801 and the equal straight section 802 are tilted upward at a certain angle, and the upward angle ensures that the aircraft's ground-rubbing angle is not affected; the magnetic detection equipment is arranged in the horizontal section 803 of the tail detection cabin.

[0033] The above-disclosed UAV with magnetic detection layout can achieve more precise detection and more accurate detection results by distancing and isolating the magnetic interference generated by the fuselage 1 through the tail detection cabin 8 disposed at the rear of the fuselage 1. The magnetic detection equipment 12 and accessories 13 in the tail detection cabin 8 can realize more precise detection and achieve more accurate detection results. The tail detection cabin 8 is smoothly connected to the fuselage 1. The transition section 801 can increase the rigidity of the tail detection cabin and integrate the airflow pattern, thereby avoiding the phenomenon of large-scale shaking of the tail detection cabin 8. The straight section 802 can adjust the length and height of the tail detection cabin 8. The length of the straight section 802 can be set according to actual needs. The horizontal section 803 is used to accommodate the magnetic detection equipment 12, so that the magnetic detection equipment 12 maintains a sufficient distance from the fuselage 1, and realizes accurate detection of the magnetic detection equipment 12. The tail detection cabin 8 adopted in this embodiment can use a variety of structures with adjustable lengths of the straight section 802, and it is not uniquely determined. Here, the structure of the tail detection cabin 8 is optimized and one of the feasible options is given: such as Figure 3 As shown, the straight section 802 of the tail probe cabin 8 includes a plurality of straight parts connected and spliced ​​together. When such a solution is adopted, the straight section 802 is connected and spliced ​​by a plurality of straight parts, and the length of the straight section 802 can be adjusted. At the same time, the height of the magnetic detection device 12 can also be changed due to the upward angle of the tail probe cabin 8.

[0034] In the drone disclosed in this embodiment, the setting method, setting number and setting angle of the magnetic detection device 12 can be determined according to actual needs and are not uniquely determined. The direction of the magnetic detection device 12 can be arranged along the heading, along the horizontal gradient or along the vertical gradient according to needs. At the same time, the number of magnetic detection devices 12 can also be set to one or more. Therefore, in this embodiment, at least one magnetic detection device 12 is set in the straight section 803.

[0035] Preferably, Figure 4 As shown, two magnetic detection devices 12 of the horizontal section 803 are arranged along the heading direction.

[0036] The above content explains the setting method of the magnetic detection device 12. Here, the layout method of setting the magnetic detection device 12 is optimized, and one of the feasible options is cited: the horizontal section 803 of the tail probe cabin includes a number of parts connected by splicing, and the sizes of the parts may be different. A smooth rectification design can also be made when splicing. When such a scheme is adopted, the straight section 803 can provide space and position for installing multiple magnetic detection devices 12 through splicing, while maintaining a high degree of integrity, reducing the bloated structure, increased flight resistance or abnormal jitter caused by the installation of multiple magnetic detection devices 12. Preferably, in this embodiment, two straight pieces are arranged to be spliced ​​together, and a magnetic detection device 12 is arranged in each straight piece.

[0037] The tail probe cabin 8 used in this embodiment is connected to the fuselage 1 of the aircraft, and changes the airflow characteristics of the aircraft during the flight of the aircraft. Here, the shape of the tail probe cabin 8 is optimized to make the gas flow on the side of the fuselage 1 better during the flight of the aircraft. The tail probe cabin 8 includes a main structure and a skin arranged on the main structure, and the main structure also includes a mounting structure for arranging various accessories. When such a scheme is adopted, the surface of the tail probe cabin 8 is smoother, the friction resistance generated is small, the gas separation generated is small, and the resistance increment is generated as little as possible during the flight of the aircraft. At the same time, due to the setting of the tail probe cabin, the yaw static stability of the aircraft is optimized.

[0038] Preferably, in this embodiment, the main structure is a reinforced frame structure, and the skin is made of non-magnetic material, for example, a fiber composite material.

[0039] Preferably, a magnetic detection device 12 is provided on the tail probe cabin 8, and the supporting magnetic detection device components of the magnetic detection device 12 can be provided inside the tail probe cabin 8, and installed and fixed by the installation structure of the tail probe cabin 8. The installation structure can adopt a variety of feasible schemes, and is not fixed uniquely. It is optimized here, and the following specific feasible scheme is cited, and the installation structure at least includes a connecting frame and / or an equipment bracket. The specific connecting frame and / or equipment bracket are not limited to a certain specific structure, and can be set according to actual needs. The maintainability of the tail probe cabin 8 is optimized, and the following feasible scheme is cited here: the tail probe cabin 8 is provided with a maintenance cover.

[0040] Preferably, the maintenance access cover comprises an opening on the skin, a cover plate is arranged at the opening, and the cover plate is movably connected to the main structure so as to realize opening and closing of the maintenance access cover by flipping.

[0041] The wing 3 used by the UAV can be arranged in a variety of ways, and the setting of the wing control surface can also be selected according to the actual situation of the aircraft, and is not uniquely determined. Here, an optimized design is performed and the following feasible solution is given: the wing 3 adopts an upper wing, the outer control surface of the wing 3 is an aileron 4, and the flaperon 5 and the flap 6 are arranged in sequence along the wingspan of the wing 3 toward the fuselage 1. When such a solution is adopted, the UAV can maintain good lift-drag characteristics and roll direction controllability. Preferably, the wing 3 can adopt a straight wing or a swept wing. When a swept wing is adopted, the leading edge sweep angle of the wing 3 ranges from 0° to 30°.

[0042] This embodiment optimizes the overall layout of the UAV, and here is a feasible solution: an engine 2 is arranged under the wing 3, and a tail support 10 is arranged at the rear of the engine 2, and the tail support 10 extends toward the tail and connects to the fixed tail. When such a solution is adopted, a total of two engines 2 are arranged on the UAV fuselage 1, forming a double tail support 10 structure, and the tail is fixed by the tail support 10, and a position for connecting the tail probe cabin 8 to the tail can be reserved. The arrangement of two engines 2 also improves the UAV's ability to resist risks. When one engine 2 fails, the remaining normal engine 2 can be used to return or make an emergency landing nearby. The tail of the UAV can adopt a variety of layout methods, which is not uniquely determined. Here is a feasible option: since the number of the tail support 10 is two, the two ends of the tail are respectively connected to the tail support 10, and the tail is provided with a rudder 7 and an elevator 9 for controlling the heading and pitch of the UAV. When such a solution is adopted, the UAV can maintain good heading and pitch direction controllability during navigation. In order to improve the reliability of the remote communication of the UAV, a satellite communication device 11 is arranged on the fuselage 1.

[0043] The above are the embodiments of the present invention, but the present invention is not limited to the above optional embodiments. Those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments. Anyone can obtain other various forms of embodiments under the enlightenment of the present invention. The above specific embodiments should not be understood as limiting the scope of protection of the present invention. The scope of protection of the present invention shall be based on the definition in the claims, and the description can be used to interpret the claims.

Claims

1. A UAV with a twin-engine magnetic detection layout and a rear-mounted tail detection cabin, comprising a fuselage (1), wherein a magnetic detection device (12) is arranged at the rear of the fuselage (1); the characteristics are: The tail of the fuselage (1) is provided with a tail probe cabin (8) made of non-magnetic material, the tail probe cabin (8) comprising a transition section (801) smoothly connected to the fuselage (1) at the front, a straight section (802) in the middle, and a horizontal section (803) at the rear, the transition section (801) and the straight section (802) being inclined upward at a certain angle, and the upward angle is greater than the ground-rubbing angle of the aircraft; the magnetic detection device (12) is arranged in the horizontal section (803) of the tail probe cabin; The straight section (802) included in the tail probe cabin (8) includes a plurality of straight parts that are spliced ​​and connected; The horizontal section (803) is provided with at least one magnetic detection device (12).

2. The UAV with a dual-engine magnetic detection layout and a rear-mounted tail detection cabin according to claim 1 is characterized by: The horizontal section (803) comprises a plurality of straight parts connected by splicing.

3. The UAV with a dual-engine magnetic detection layout and a rear tail detection cabin according to any one of claims 1 to 2, characterized in that: The tail probe cabin (8) comprises a main structure and a skin arranged on the main structure, and the main structure also comprises a mounting structure for arranging accessories (13).

4. The UAV with a dual-engine magnetic detection layout and a rear-mounted tail detection cabin according to claim 3 is characterized by: The installation structure at least includes a connection frame and / or an equipment bracket.

5. The UAV with a dual-engine magnetic detection layout and a rear-mounted tail detection cabin according to any one of claims 1 to 2, characterized in that: The tail exploration cabin (8) is provided with a maintenance cover structure.

6. The UAV with a twin-engine magnetic detection layout and a rear-mounted tail detection cabin according to claim 1, characterized in that: The wing (3) is a high-wing, the outer control surface of the wing (3) is an aileron (4), and a flaperon (5) and a flap (6) are sequentially arranged along the wingspan of the wing (3) in the direction of the fuselage (1).

7. The UAV with a twin-engine magnetic detection layout and a rear-mounted tail detection cabin according to claim 4, characterized in that: An engine (2) is arranged under the wing (3), a tail support (10) is arranged behind the engine (2), and the tail support (10) extends toward the tail of the aircraft and is connected to a fixed tail wing.

8. The UAV with a twin-engine magnetic detection layout and a rear-mounted tail detection cabin according to claim 1, characterized in that: A satellite communication device (11) is provided on the fuselage (1).

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