A hanging device for unmanned helicopter airborne electromagnetic method transmitting and receiving equipment

Abstract

The present invention discloses a hanging device for an unmanned helicopter airborne electromagnetic method transmitting and receiving device, comprising a transmitting coil frame and a receiving coil frame made of engineering plastics, the transmitting coil frame and the receiving coil frame being connected by a hanging rope and hung under the unmanned helicopter by a main rope; the transmitting coil frame comprises a transmitting coil annular cabin and a transmitting coil balancer; the transmitting coil annular cabin is a hollow annular shape; the transmitting coil balancer is a hollow rod, the front and rear sides of which respectively intersect with the transmitting coil annular cabin and bisect the hollow circular ring formed by the transmitting coil annular cabin; the receiving coil frame is a hollow sphere composed of three identical circular rings. The present invention is suitable for miniaturized airborne electromagnetic method equipment of unmanned helicopters, does not generate electromagnetic interference, and can also obtain electromagnetic field signals in three directions, so that more comprehensive information can be obtained in later data processing and interpretation.

Description

Technical Field

[0001] The invention relates to a device for hanging an aerial electromagnetic method transmitting and receiving device, in particular to a hanging device for an aerial electromagnetic method transmitting and receiving device of an unmanned helicopter. Background Art

[0002] The time domain airborne electromagnetic method (ATEM) detection system is a type of airborne geophysical exploration. As a fast, economical and high-tech exploration method, airborne geophysical exploration is widely used in developed Western countries, mainly for metal mineral resource surveys, regional resource exploration and geological mapping. Flight operations can greatly expand the speed and application range of detection, greatly improving the efficiency of resource exploration.

[0003] The time domain airborne electromagnetic detection system consists of onboard equipment such as an onboard data acquisition and recording computer and a transmitting coil and a receiving coil mounted outside the cabin. The transmitting device transmits an electromagnetic field (primary field) that changes with time underground by controlling the current in the transmitting coil. The primary field causes conductive objects underground to generate induced currents, and the induced currents generate induced electromagnetic fields (secondary fields). The secondary induced electromagnetic field decays over time, and the induced voltage components of the secondary field in all directions can be received by the receiving coil. The secondary field is related to the electromagnetic properties of underground materials. After analyzing the induced voltage of the received secondary field, the parameters such as the dielectric constant, conductivity and magnetic permeability of the underground medium can be inferred. The electrical parameters of an area can be obtained by detecting the target area, so that the spatial distribution and shape of underground materials can be inferred.

[0004] UAV aerial geophysical prospecting is an emerging exploration technology in recent years. With the development of electronic technology and UAV technology, the electronic control part of geophysical instruments has gradually become smaller, and the weight can also be made smaller, which is more conducive to geophysical prospecting work on UAVs. The airborne electromagnetic measurement of unmanned helicopters will play a more important role in engineering exploration. At present, there is little development of miniaturized airborne electromagnetic equipment for unmanned helicopters. The airborne electromagnetic equipment of large helicopters is mostly heavy, and its application range is greatly restricted by the environment. Compared with large-scale airborne electromagnetic methods, UAV airborne electromagnetic methods are used in different scenarios, mainly in shallow surface engineering exploration. Summary of the invention

[0005] The purpose of the present invention is to provide a hanging device for hanging unmanned helicopter aerial electromagnetic transmission and receiving equipment, which uses engineering plastics and polymer materials, is insulated and non-magnetic, does not generate electromagnetic interference, minimizes the noise source of the system itself, and can also obtain electromagnetic field signals in three directions, so that more comprehensive information can be obtained in later data processing and interpretation.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a hanging device for an unmanned helicopter aerial electromagnetic method transmitting and receiving device, wherein the hanging device comprises a transmitting coil frame and a receiving coil frame made of engineering plastics, the transmitting coil frame and the receiving coil frame are connected by a hanging rope, and are hung under the unmanned helicopter by a main rope; the transmitting coil frame comprises a transmitting coil annular cabin and a transmitting coil balancer; the transmitting coil annular cabin is a hollow annular cabin; the transmitting coil balancer is a hollow rod, and its front and rear sides respectively intersect with the transmitting coil annular cabin and bisect the hollow circular ring formed by the transmitting coil annular cabin; the receiving coil frame is a hollow sphere composed of three identical circular rings. The components of the hanging device are all made of engineering plastics, that is, the materials of the transmitting coil frame and the receiving coil frame are both engineering plastics, and the hanging ropes are all polymer materials, such as glass fiber ropes.

[0007] The above-mentioned hanging device for the aerial electromagnetic transmitting and receiving equipment of the unmanned helicopter, wherein the transmitting coil annular cabin is a large ring composed of four identical 1 / 4 arc tubes connected end to end, the end faces of the two ends of the arc tubes are respectively provided with identical square connecting plates, the adjacent arc tubes are butted through the square connecting plates of their respective end faces and fixed by screws, and the center of the square connecting plate is provided with a circular hole adapted to the diameter of the arc tube. The setting direction of the square connecting plate is perpendicular to the extension direction of the arc tube.

[0008] The above-mentioned hanging device for unmanned helicopter airborne electromagnetic transmitting and receiving equipment, wherein the transmitting coil annular cabin, a circular arc tube between two butt joints of the rear circular arc tube is provided with a wire outlet hole at the front near the butt joint on one side thereof, the transmitting coil annular cabin formed by the circular arc tube is hollow and through, and a transmitting coil cable wound along a large circular ring is installed in the transmitting coil annular cabin, and the transmitting coil cable is led out through the wire outlet hole.

[0009] The above-mentioned hanging device for the aerial electromagnetic transmitting and receiving equipment of an unmanned helicopter, wherein the transmitting coil balancer is in the shape of a long rod with a hollow interior, the cross section of the rod body is circular, the head end of the long rod is a round head, and the tail end is provided with three guide tail wings; the guide tail wings are in the shape of the same trapezoidal plate, evenly arranged on the outer surface of the long rod at the tail of the transmitting coil balancer and evenly divide the circumference, the side edges of the trapezoidal plate extend outwardly along the radial direction of the cross section of the long rod, and the extension direction of the bottom edge of the trapezoidal plate is the same as the length direction of the long rod; an elliptical bulging hollow cabin is provided in the middle of the rod body of the transmitting coil balancer at the center of the transmitting coil annular cabin; the transmitting coil balancer is balanced as a whole.

[0010] The above-mentioned hanging device for unmanned helicopter airborne electromagnetic transmitting and receiving equipment, wherein the hollow cabin is in the shape of a rugby ball with a hollow interior, and comprises an elliptical ring structure with a side wall height greater than or equal to the diameter of the long rod of the transmitting coil balancer, and arc-shaped protrusions symmetrically arranged at the upper and lower parts of the elliptical ring, wherein the upper arc-shaped protrusion is arranged as an openable cover, and its head and tail ends are respectively fixed to the elliptical ring by screws.

[0011] The above-mentioned hanging device for the aerial electromagnetic transmitting and receiving equipment of the unmanned helicopter, wherein the transmitting coil balancer is located below the transmitting coil annular cabin, and the rod body of the transmitting coil balancer is respectively provided with pipe clamps on the round head side and the guide tail side, and is fixed to the two sides of the circular ring of the transmitting coil annular cabin through the pipe clamps, and the length of the rod body of the transmitting coil balancer at both ends exceeding the outside of the transmitting coil annular cabin is equal, so that the transmitting coil frame is balanced as a whole, and the head and tail setting direction of the transmitting coil balancer is consistent with the forward direction of the unmanned helicopter.

[0012] The above-mentioned hanging device for unmanned helicopter airborne electromagnetic transmitting and receiving equipment, wherein the transmitting coil annular cabin, the butt joints of the arc tube are symmetrically arranged at two locations on the two semicircles on both sides of the transmitting coil balancer, each butt joint is respectively provided with a pipe hoop, a total of four pipe hoopes divide the circular ring of the transmitting coil annular cabin equally, the hanging rope is connected to the transmitting coil annular cabin through the pipe hoop, and the hanging of the transmitting coil frame is completed.

[0013] The above-mentioned hanging device for unmanned helicopter airborne electromagnetic transmitting and receiving equipment, wherein the receiving coil frame is an integrally formed hollow spherical frame composed of three identical hollow circular rings orthogonally, the interior of the frame is connected, the three hollow circular rings are perpendicularly intersected in pairs, and a circular hole for installing the receiving coil cable is provided at the intersection of two circular rings thereon, and the receiving coil cable extends along the three hollow circular rings inside the receiving coil frame and is wound into three orthogonal coils.

[0014] The above-mentioned hanging device for unmanned helicopter airborne electromagnetic transmitting and receiving equipment, wherein, the receiving coil frame, one of the three hollow rings is arranged horizontally, and the other two are arranged vertically, the four intersections of the horizontal hollow ring and the other two vertical hollow rings are respectively connected to the hanging rope, and the intersection of the tops of the two vertical hollow rings is also connected to the hanging rope, so as to realize the hanging of the receiving coil frame.

[0015] The above-mentioned hanging device for the unmanned helicopter airborne electromagnetic transmitting and receiving equipment, wherein the receiving coil frame is hung below the transmitting coil frame and has a certain distance between it and the transmitting coil frame, the hanging rope connected to the receiving coil frame extends upward, passes through the large ring of the transmitting coil frame, and is connected to the main rope at the same point above the transmitting coil frame as the hanging rope connected to the transmitting coil frame, and the top of the main rope is connected to the hanging point at the bottom of the unmanned helicopter.

[0016] The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment provided by the present invention has the following advantages:

[0017] The present invention is suitable for miniaturized aerial electromagnetic method equipment of unmanned helicopters. The structural components of the hanging equipment are all made of engineering plastics, and the hanging ropes are all made of polymer materials, which are insulated and non-magnetic, and do not generate electromagnetic interference, thereby minimizing the noise source of the system itself.

[0018] Compared with the current equipment that mostly uses a single-coil or double-coil receiving coil frame, the present invention uses three orthogonal rings to form a three-component measurement coil, which can obtain electromagnetic field signals in three directions and obtain more comprehensive information in subsequent data processing and interpretation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic diagram of a hanging device for an unmanned helicopter aerial electromagnetic method transmitting and receiving device.

[0020] Figure 2 The present invention is a schematic diagram of a transmitting coil frame of a hanging device for an unmanned helicopter aerial electromagnetic transmitting and receiving device.

[0021] Figure 3 The present invention is a schematic diagram of a transmitting coil annular cabin of a hanging device for an unmanned helicopter aerial electromagnetic transmitting and receiving device.

[0022] Figure 4 The present invention is a top view of a transmitting coil annular cabin of a hanging device for an unmanned helicopter aerial electromagnetic transmitting and receiving device.

[0023] Figure 5 The present invention is a schematic diagram of an arc tube of a transmitting coil annular cabin of a hanging device for an unmanned helicopter aerial electromagnetic transmitting and receiving device.

[0024] Figure 6 The present invention is a schematic diagram of a transmitting coil balancer for a hanging device of an unmanned helicopter aero-electromagnetic transmitting and receiving device.

[0025] Figure 7The present invention is a schematic diagram of a hollow cabin of a transmitting coil balancer of a hanging device for an unmanned helicopter aero-electromagnetic transmitting and receiving device.

[0026] Figure 8 The present invention is a partially enlarged schematic diagram of the cover connection of the hollow cabin of the transmitting coil balancer of the hanging device for the unmanned helicopter airborne electromagnetic transmitting and receiving equipment.

[0027] Fig. 9 The present invention is a schematic diagram of a receiving coil frame of a hanging device for an unmanned helicopter aerial electromagnetic method transmitting and receiving device.

[0028] Fig.10 The present invention is a partial cross-sectional view of a receiving coil frame of a hanging device for an unmanned helicopter aerial electromagnetic transmitting and receiving device.

[0029] Fig.11 The present invention is a schematic diagram of a circular hole on a receiving coil frame of a hanging device for an unmanned helicopter aero-electromagnetic transmitting and receiving device.

[0030] Among them: 1. Transmitting coil frame; 2. Receiving coil frame; 3. Hanging rope; 4. Main rope; 5. Transmitting coil annular cabin; 6. Transmitting coil balancer; 7. Arc tube; 8. Square connecting plate; 9. Wire outlet hole; 10. Guide tail; 11. Hollow cabin; 12. Cover; 13. Screws; 14. Pipe clamp; 15. Round hole. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0032] like Figures 1 to 11 As shown, the present invention provides a hanging device for an unmanned helicopter airborne electromagnetic method transmitting and receiving device, comprising a transmitting coil frame 1 and a receiving coil frame 2 made of engineering plastics, the transmitting coil frame 1 and the receiving coil frame 2 are connected by a hanging rope 3, and are hung under the unmanned helicopter by a main rope 4; the transmitting coil frame 1 comprises a transmitting coil annular cabin 5 and a transmitting coil balancer 6; the transmitting coil annular cabin 5 is a hollow annular shape; the transmitting coil balancer 6 is a hollow rod, and its front and rear sides respectively intersect with the transmitting coil annular cabin 5 and divide the hollow annular ring formed by the transmitting coil annular cabin 5 in half; the receiving coil frame 2 is a hollow sphere composed of three identical annular rings. The components of the hanging device are all made of engineering plastics, that is, the materials of the transmitting coil frame 1 and the receiving coil frame 2 are all engineering plastics, and the hanging ropes 3 are all polymer materials, such as glass fiber ropes.

[0033] The transmitting coil annular cabin 5 is a large circular ring composed of four identical 1 / 4 arc tubes 7 connected end to end. The end faces of the two ends of the arc tubes 7 are respectively provided with identical square connecting plates 8. Adjacent arc tubes 7 are butted through the square connecting plates 8 of their respective end faces and fixed by screws 13. The center of the square connecting plate 8 is provided with a circular hole adapted to the diameter of the arc tube 7. The setting direction of the square connecting plate 8 is perpendicular to the extension direction of the arc tube 7, and the square plane connection is beneficial to the stability of the entire circular ring structure. The design of the transmitting coil annular cabin 5 in a ring shape is beneficial to the transmitting area of ​​the transmitting coil, and the same weight of cable can obtain a larger transmitting area.

[0034] A wire outlet hole 9 is provided on one of the arc tubes 7 between the two butt joints of the arc tubes 7 at the rear of the transmitting coil annular cabin 5, near the front of the butt joint on one side thereof. The transmitting coil annular cabin 5 formed by the arc tube 7 is hollow and through, and a transmitting coil cable wound along a large circular ring is installed in the transmitting coil annular cabin 5, and the transmitting coil cable is led out through the wire outlet hole 9. Placing the transmitting coil cable inside the circular ring is conducive to protecting the cable from the influence of the external environment.

[0035] The transmitting coil balancer 6 is in the shape of a long rod with a hollow interior and a rocket shape as a whole. The cross section of the rod body is circular, the head end of the long rod is round, and the tail end is provided with three guide tail wings 10; the guide tail wings 10 are in the same trapezoidal plate shape, evenly arranged on the outer surface of the long rod at the tail of the transmitting coil balancer 6 and evenly divide the circumference, the side edges of the trapezoidal plate extend outward along the radial direction of the cross section of the long rod, and the extension direction of the bottom edge of the trapezoidal plate is the same as the length direction of the long rod; an elliptical bulging hollow cabin 11 is provided in the middle of the rod body of the transmitting coil balancer 6 at the center of the transmitting coil annular cabin 5; the transmitting coil balancer 6 is balanced as a whole.

[0036] The hollow cabin 11 is in the shape of a rugby ball with a hollow interior, and comprises an elliptical ring structure with a side wall height greater than or equal to the diameter of the long rod of the transmitting coil balancer 6, and arc-shaped protrusions symmetrically arranged at the upper and lower parts of the elliptical ring. The upper arc-shaped protrusion is arranged as an openable cover 12, and its head and tail ends are fixed to the elliptical ring by screws 13 respectively.

[0037] The transmitting coil balancer 6 is located below the transmitting coil annular cabin 5. A pipe hoop 14 is provided on the rod body of the transmitting coil balancer 6 on one side of the round head and on one side of the guide tail 10, and is fixed to the two sides of the circular ring of the transmitting coil annular cabin 5 by the rod body. The fixing place is respectively located at the midpoint of the two arc tubes 7 at the front and rear of the transmitting coil annular cabin 5. The rod body of the transmitting coil balancer 6 has equal lengths beyond the transmitting coil annular cabin 5 at both ends, so that the transmitting coil frame 1 is balanced as a whole. The head and tail setting direction of the transmitting coil balancer 6 is consistent with the forward direction of the unmanned helicopter. The rocket-like design of the transmitting coil balancer 6 is conducive to flight, and the system is more stable during flight and will not shake at will. The middle hollow cabin 11 can be used to place batteries or other electronic devices, and can also be used as an overall balancing.

[0038] The butt joints of the arc tube 7 of the transmitting coil annular cabin 5 are symmetrically arranged at two locations on the two semicircles on both sides of the transmitting coil balancer 6, and each butt joint is provided with a pipe clamp 14. There are four pipe clamps 14 in total that evenly divide the circular ring of the transmitting coil annular cabin 5. The hanging rope 3 is connected to the transmitting coil annular cabin 5 through the pipe clamp 14, and the hanging of the transmitting coil frame 1 is completed. Hanging through the pipe clamp 14 is relatively free and the number can be increased or decreased at will, and it is easier to adjust the balance.

[0039] The receiving coil frame 2 is an integrally formed hollow spherical frame composed of three identical hollow circular rings orthogonally formed. The frame is connected inside, and the three hollow circular rings intersect each other vertically. A circular hole 15 for installing the receiving coil cable is provided at the intersection of two circular rings on the frame. The receiving coil cable is extended along the three hollow circular rings inside the receiving coil frame 2 and wound into three orthogonal coils. The integrally formed structure of the receiving coil frame 2 is stable, and the interior is hollow, which minimizes the weight. The receiving coil frame 2 is punched with holes for installing the receiving coil cable. The three coils are orthogonal to obtain a three-component electromagnetic field signal, which is conducive to data analysis and interpretation.

[0040] One of the three hollow rings of the receiving coil frame 2 is set horizontally, and the other two are set vertically. The four intersections of the horizontal hollow ring and the other two vertical hollow rings are respectively connected to the hanging rope 3, and the intersection of the tops of the two vertical hollow rings is also connected to the hanging rope 3 to realize the hanging of the receiving coil frame 2.

[0041] The receiving coil frame 2 is suspended below the transmitting coil frame 1 and has a certain distance from the transmitting coil frame 1. The hanging rope 3 connected to the receiving coil frame 2 extends upward, passes through the large ring of the transmitting coil frame 1, and is connected to the main rope 4 at the same point above the transmitting coil frame 1 as the hanging rope 3 connected to the transmitting coil frame 1. The top of the main rope 4 is connected to the hanging point at the bottom of the unmanned helicopter.

[0042] The following is a further description of the hanging device for the unmanned helicopter airborne electromagnetic transmitting and receiving equipment provided by the present invention in conjunction with the embodiments.

[0043] Example 1

[0044] A hanging device for an unmanned helicopter airborne electromagnetic method transmitting and receiving device consists of two parts, namely a transmitting coil frame 1 and a receiving coil frame 2 made of engineering plastics. The transmitting coil frame 1 and the receiving coil frame 2 are connected by a hanging rope 3 and hung under the unmanned helicopter by a main rope 4.

[0045] The components of the hanging device are all made of engineering plastics, that is, the materials of the transmitting coil frame 1 and the receiving coil frame 2 are all engineering plastics, and the hanging ropes 3 are all polymer materials, such as glass fiber ropes.

[0046] The transmitting coil frame 1 comprises a transmitting coil annular cabin 5 and a transmitting coil balancer 6 .

[0047] The transmitting coil annular cabin 5 is in the shape of a hollow ring.

[0048] Preferably, the transmitting coil annular cabin 5 is a large circular ring composed of four identical 1 / 4 arc tubes 7 connected end to end, and the end faces of both ends of the arc tube 7 are respectively provided with identical square connecting plates 8. Adjacent arc tubes 7 are butt-jointed through the square connecting plates 8 on their respective end faces and fixed by screws 13. The center of the square connecting plate 8 is provided with a circular hole adapted to the diameter of the arc tube 7.

[0049] A wire outlet hole 9 is provided on one of the arc tubes 7 between the two butt joints of the arc tubes 7 at the rear of the transmitting coil annular cabin 5, near the front of the butt joint on one side thereof. The interior of the transmitting coil annular cabin 5 formed by the arc tubes 7 is hollow and through, and a transmitting coil cable wound along a large ring is installed in the transmitting coil annular cabin 5, and the transmitting coil cable is led out through the wire outlet hole 9.

[0050] The transmitting coil balancer 6 is in the shape of a hollow rod, and its head and tail sides intersect with the transmitting coil annular cabin 5 respectively, and divide the hollow ring formed by the transmitting coil annular cabin 5 into two halves.

[0051] Preferably, the transmitting coil balancer 6 is in the shape of a long hollow rod with a hollow interior, and is in the shape of a rocket as a whole. The cross-section of the rod body is circular, the head end of the long rod is round, and the tail end is provided with three guide tail wings 10; the guide tail wings 10 are in the same trapezoidal plate shape, evenly arranged on the outer surface of the long rod at the tail of the transmitting coil balancer 6 and evenly divide the circumference, the side edges of the trapezoidal plate extend outward along the radial direction of the cross-section of the long rod, and the extension direction of the bottom edge of the trapezoidal plate is the same as the length direction of the long rod; an elliptical bulging hollow cabin 11 is provided in the middle of the rod body of the transmitting coil balancer 6 at the center of the transmitting coil annular cabin 5; the transmitting coil balancer 6 is balanced as a whole.

[0052] The hollow cabin 11 is in the shape of a rugby ball with a hollow interior, and comprises an elliptical ring structure with a side wall height greater than or equal to the diameter of the long rod of the transmitting coil balancer 6, and arc-shaped protrusions symmetrically arranged at the upper and lower parts of the elliptical ring. The upper arc-shaped protrusion is arranged as an openable cover 12, and its head and tail ends are fixed to the elliptical ring by screws 13 respectively.

[0053] The transmitting coil balancer 6 is located below the transmitting coil annular cabin 5. A pipe clamp 14 is provided on the rod body of the transmitting coil balancer 6 on the side close to the round head and the side close to the guide tail 10, and is fixed to the two sides of the circular ring of the transmitting coil annular cabin 5 through the pipe clamp 14. The rod body of the transmitting coil balancer 6 has the same length at both ends extending outside the transmitting coil annular cabin 5, so that the transmitting coil frame 1 is balanced as a whole. The head and tail setting directions of the transmitting coil balancer 6 are consistent with the forward direction of the unmanned helicopter.

[0054] The butt joints of the arc tube 7 of the transmitting coil annular cabin 5 are symmetrically arranged at two locations on the two semicircles on both sides of the transmitting coil balancer 6, and each butt joint is provided with a pipe clamp 14. A total of four pipe clamps 14 divide the circular ring of the transmitting coil annular cabin 5 equally. The hanging rope 3 is connected to the transmitting coil annular cabin 5 through the pipe clamp 14, and the hanging of the transmitting coil frame 1 is completed.

[0055] The receiving coil frame 2 is a hollow sphere composed of three identical rings.

[0056] Preferably, the receiving coil frame 2 is an integrally formed hollow spherical frame composed of three identical hollow circular rings orthogonally formed, the frame is connected inside, the three hollow circular rings are perpendicularly intersected in pairs, and a circular hole 15 for installing the receiving coil cable is provided at the intersection of two circular rings thereon, that is, a hole is punched on the upper part of the receiving coil for installing the receiving coil cable. The receiving coil cable extends along the three hollow circular rings inside the receiving coil frame 2 and is wound into three orthogonal coils.

[0057] One of the three hollow rings of the receiving coil frame 2 is set horizontally, and the other two are set vertically. The four intersections of the horizontal hollow ring and the other two vertical hollow rings are respectively connected to the hanging rope 3, and the intersection of the tops of the two vertical hollow rings is also connected to the hanging rope 3 to realize the hanging of the receiving coil frame 2.

[0058] The receiving coil frame 2 is suspended below the transmitting coil frame 1 and has a certain distance from the transmitting coil frame 1. The hanging rope 3 connected to the receiving coil frame 2 extends upward, passes through the large ring of the transmitting coil frame 1, and is connected to the main rope 4 at the same point above the transmitting coil frame 1 as the hanging rope 3 connected to the transmitting coil frame 1. The top of the main rope 4 is connected to the hanging point at the bottom of the unmanned helicopter.

[0059] The present invention provides a hanging device for an unmanned helicopter airborne electromagnetic transmitting and receiving device, which is composed of two major parts: a transmitting coil frame 1 and a receiving coil frame 2 made of engineering plastics. The transmitting coil frame 1 is composed of a transmitting coil annular cabin 5 and a transmitting coil balancer 6, and the transmitting coil balance cabin is composed of four 1 / 4 arc tubes 7 connected. The transmitting coil balancer 6 is composed of a rocket-shaped hollow structure with a bulge in the middle, and the middle elliptical bulge is open, and the cover 12 is fixed by screws 13. After the transmitting coil frame 1 and the receiving coil frame 2 are installed with cables and electronic equipment, they are connected to the hanging rope 3 through a pipe clamp 14, and then connected to a point, and the receiving coil frame 2 is hung at a certain distance below the transmitting coil, and then the whole is connected to the hanging point at the bottom of the unmanned helicopter through a main rope 4.

[0060] The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment provided by the present invention is suitable for the miniaturized airborne electromagnetic method equipment of the unmanned helicopter. The structural components of the device are made of engineering plastics, and the hanging ropes are all made of polymer materials, which are insulated and non-magnetic, and do not generate electromagnetic interference, thereby minimizing the noise source of the system itself. The device also uses three orthogonal circular rings to form a three-component measurement coil, which can obtain electromagnetic field signals in three directions, and can obtain more comprehensive information in later data processing and interpretation.

[0061] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A hanging device for an unmanned helicopter aero-electromagnetic method transmitting and receiving device, characterized in that: The hanging device comprises a transmitting coil frame and a receiving coil frame made of engineering plastics, the transmitting coil frame and the receiving coil frame are connected by a hanging rope, and are hung under the unmanned helicopter by a main rope; The transmitting coil frame comprises a transmitting coil annular cabin and a transmitting coil balancer; The transmitting coil annular cabin is a hollow annular shape; The transmitting coil balancer is in the shape of a hollow rod, the front and rear sides of which intersect with the transmitting coil annular cabin respectively and divide the hollow circular ring formed by the transmitting coil annular cabin into two halves; The transmitting coil balancer is in the shape of a long rod with a hollow interior, the cross section of the rod body is circular, the head end of the long rod is round, and the tail end is provided with three guide tail wings; the guide tail wings are in the shape of the same trapezoidal plate, evenly arranged on the outer surface of the long rod at the tail of the transmitting coil balancer and evenly divide the circumference; an elliptical bulging hollow cabin is provided in the middle of the rod body of the transmitting coil balancer at the center of the transmitting coil annular cabin; The receiving coil frame is a hollow sphere composed of three identical rings; The transmitting coil annular cabin is a large circular ring composed of four identical 1 / 4 arc tubes connected end to end. The end faces of the two ends of the arc tubes are respectively provided with identical square connecting plates. Adjacent arc tubes are butt-jointed through the square connecting plates on their respective end faces and fixed by screws. The center of the square connecting plate is provided with a circular hole adapted to the diameter of the arc tube.

2. The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment according to claim 1, characterized in that: The transmitting coil annular cabin has a wire outlet hole on a circular arc tube between two butt joints of the rear circular arc tubes near the front of one side butt joint. The interior of the transmitting coil annular cabin formed by the circular arc tubes is hollow and through. The transmitting coil annular cabin is equipped with a transmitting coil cable wound along a large ring, and the transmitting coil cable is led out through the wire outlet hole.

3. The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment according to claim 1, characterized in that: The hollow cabin is in the shape of a rugby ball with a hollow interior, and comprises an elliptical ring structure with a side wall height greater than or equal to the diameter of the long rod of the transmitting coil balancer, and arc-shaped protrusions symmetrically arranged at the upper and lower parts of the elliptical ring. The upper arc-shaped protrusion is arranged as an openable cover, and its head and tail ends are respectively fixed to the elliptical ring by screws.

4. The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment according to claim 1, characterized in that: The transmitting coil balancer is located below the transmitting coil annular cabin. A pipe clamp is provided on the rod body of the transmitting coil balancer on the side close to the round head and the side close to the guide tail wing, and is fixed to the two sides of the circular ring of the transmitting coil annular cabin through the pipe clamp. The length of the rod body of the transmitting coil balancer extending outside the transmitting coil annular cabin at both ends is equal, so that the transmitting coil frame is balanced as a whole. The head and tail setting directions of the transmitting coil balancer are consistent with the forward direction of the unmanned helicopter.

5. The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment according to claim 4, characterized in that: The transmitting coil annular cabin has two butt joints of the arc tube symmetrically arranged on two semicircles on both sides of the transmitting coil balancer, each butt joint is provided with a pipe clamp, and a total of four pipe clamps divide the circular ring of the transmitting coil annular cabin equally. The hanging rope is connected to the transmitting coil annular cabin through the pipe clamp, and the hanging of the transmitting coil frame is completed.

6. The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment according to claim 1, characterized in that: The receiving coil frame is an integrally formed hollow spherical frame composed of three identical hollow circular rings orthogonally formed, and a circular hole for installing the receiving coil cable is provided at the intersection of two circular rings on the receiving coil frame.

7. The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment according to claim 6, characterized in that: The receiving coil frame has three hollow rings, one of which is horizontally arranged and the other two are vertically arranged. The four intersections of the horizontal hollow ring and the other two vertical hollow rings are respectively connected to the hanging ropes, and the intersection of the tops of the two vertical hollow rings is also connected to the hanging rope to realize the hanging of the receiving coil frame.

8. The hanging device for the unmanned helicopter airborne electromagnetic method transmitting and receiving equipment as claimed in claim 7, characterized in that: The receiving coil frame is suspended below the transmitting coil frame, and the hanging rope connected to the receiving coil frame extends upward, passes through the large ring of the transmitting coil frame, and is connected to the main rope at the same point above the transmitting coil frame as the hanging rope connected to the transmitting coil frame, and the top of the main rope is connected to the hanging point at the bottom of the unmanned helicopter.

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