CN210681159U - Target drone capable of adjusting electromagnetic wave reflection quantity - Google Patents
Target drone capable of adjusting electromagnetic wave reflection quantity Download PDFInfo
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- CN210681159U CN210681159U CN201921667642.1U CN201921667642U CN210681159U CN 210681159 U CN210681159 U CN 210681159U CN 201921667642 U CN201921667642 U CN 201921667642U CN 210681159 U CN210681159 U CN 210681159U
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Abstract
The utility model relates to a target drone of adjustable electromagnetic wave reflection volume, including unmanned aerial vehicle body and electromagnetic wave reflection volume adjustment mechanism, electromagnetic wave reflection volume adjustment mechanism includes first winding axle, second winding axle, first support, first driving motor, second driving motor, haulage rope and flexible electromagnetic wave reflection of light piece, first support is fixed on the inner wall of unmanned aerial vehicle body, first driving motor and second driving motor all fix on first support, first winding axle and second winding axle are connected with the main shaft of first driving motor and the main shaft of second driving motor respectively; one end of the flexible electromagnetic wave reflection sheet is fixed with the second winding shaft, the other end of the flexible electromagnetic wave reflection sheet is connected with one ends of the plurality of hauling ropes, and one end, far away from the flexible electromagnetic wave reflection sheet, of each hauling rope is connected with the first winding shaft. The calibration purpose can be achieved by adjusting the reflection quantity, the radar calibration efficiency is greatly improved, and the calibration time of the radar mobile deployment is saved.
Description
Technical Field
The utility model relates to a radar technology field, concretely relates to target drone of adjustable electromagnetic wave reflection volume.
Background
The unmanned aerial vehicle of present adopts non-metallic material to make its main material for carbon fiber glass fiber, resin, timber, plastics etc. more, and the unmanned aerial vehicle of these materials preparation all very little to the reflection of radar wave, is very difficult to be discovered by the radar, and low little unmanned aerial vehicle has provided brand-new requirement for the radar army, and lacks such target drone at present and cooperates the radar timing.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to provide a target drone capable of adjusting the reflection of electromagnetic waves to overcome the deficiencies in the prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a target drone capable of adjusting electromagnetic wave reflection amount comprises an unmanned aerial vehicle body and an electromagnetic wave reflection amount adjusting mechanism, wherein at least one electromagnetic wave reflection amount adjusting mechanism is arranged on the inner wall of the unmanned aerial vehicle body; the electromagnetic wave reflection quantity adjusting mechanism comprises a first winding shaft, a second winding shaft, a first support, a first driving motor, a second driving motor, a traction rope and a flexible electromagnetic wave reflection sheet, the first support is fixed on the inner wall of the unmanned aerial vehicle body, the first driving motor and the second driving motor are both fixed on the first support, the first winding shaft is connected with a main shaft of the first driving motor, the second winding shaft is connected with a main shaft of the second driving motor, and a rotation center line of the first winding shaft driven by the first driving motor to rotate is parallel to a rotation center line of the second winding shaft driven by the second driving motor to rotate; one end of the flexible electromagnetic wave reflection sheet is fixed with the second winding shaft, the other end of the flexible electromagnetic wave reflection sheet is connected with one ends of the plurality of hauling ropes, and one end, far away from the flexible electromagnetic wave reflection sheet, of each hauling rope is connected with the first winding shaft.
The utility model has the advantages that: when needs increase reflection volume, start first driving motor and second driving motor, first driving motor drives first coiling hub rotation, second driving motor drives second coiling hub rotation simultaneously, the flexible electromagnetic wave reflector plate of coiling on the second coiling hub slowly moves to first coiling hub under the effect of first coiling hub and haulage rope, the epaxial flexible electromagnetic wave reflector plate of second coiling is slowly wound down in this process, flexible electromagnetic wave reflector plate expansion area grow, thereby can increase the reflection volume, otherwise reduce the reflection volume, can reach the purpose of calibration through the size of adjustment reflection volume, improve the efficiency of radar calibration by a wide margin, practice thrift the timing time of the motor-driven deployment of radar.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, electromagnetic wave reflection quantity adjustment mechanism still includes the second support, and the second support is fixed on the inner wall of unmanned aerial vehicle body, and the both ends of first coiling axle are connected with first support and second leg joint through the bearing respectively, and the both ends of second coiling axle are connected with first support and second leg joint through the bearing respectively, and first driving motor's main shaft and second driving motor's main shaft are connected with first coiling axle and second coiling axle respectively.
The adoption of the further beneficial effects is as follows: can support first coiling axle and the stable operation of second coiling axle to and reduce first driving motor and second driving motor's load, promote life.
Furthermore, the electromagnetic wave reflection quantity adjusting mechanism also comprises a first winding drum and a second winding drum, the first winding drum and the second winding drum are respectively sleeved on the first winding shaft and the second winding shaft, two ends of the first winding drum are respectively connected with the first support and the second support, and a first notch for the traction rope and the flexible electromagnetic wave reflection sheet to pass through is formed in the wall surface of the first winding drum; the two ends of the second winding drum are respectively connected with the first support and the second support, and a second notch for the traction rope and the flexible electromagnetic wave reflection sheet to pass through is formed in the wall surface of the second winding drum.
The adoption of the further beneficial effects is as follows: after the hauling cable and the flexible electromagnetic wave reflection sheet are rolled, the flexible electromagnetic wave reflection sheet can be protected.
Furthermore, a first driving motor and a second driving motor are respectively fixed on the first winding drum and the second winding drum, a main shaft of the first driving motor is connected with the first winding shaft through a transmission chain, and a main shaft of the second driving motor is connected with the second winding shaft through the transmission chain.
The adoption of the further beneficial effects is as follows: reducing the overall length.
Furthermore, electromagnetic wave reflection quantity adjustment mechanism still includes many guiding axles, and the both ends of many guiding axles are connected with first support and second support rotation respectively, and all guiding axles all are located between first coiling axle and the second coiling axle, and all guiding axles all are located the inboard of haulage rope and flexible electromagnetic wave reflection of light piece to the movement path to haulage rope and flexible electromagnetic wave reflection of light piece leads.
The adoption of the further beneficial effects is as follows: the shape of the flexible electromagnetic wave reflection sheet after being unfolded can be defined, and the flexible electromagnetic wave reflection sheet can be supported.
Furthermore, the electromagnetic wave reflection quantity adjusting mechanism further comprises a controller and a wireless communication module, and the wireless communication module, the first driving motor and the second driving motor are electrically connected with the controller respectively.
The adoption of the further beneficial effects is as follows: the expansion area of the flexible electromagnetic wave reflector plate can be conveniently and remotely regulated, so that the reflection quantity can be remotely regulated.
Further, the flexible electromagnetic wave reflection sheet is made of aluminum foil.
Further, the quantity of the electromagnetic wave reflection quantity adjusting mechanisms arranged in the inner cavity of the unmanned aerial vehicle body is multiple.
The adoption of the further beneficial effects is as follows: and multi-point regulation and control can be realized, and the flexibility is better.
Drawings
Fig. 1 is a top view of a drone with adjustable electromagnetic wave reflection according to the present invention;
fig. 2 is a cross-sectional view of the drone with adjustable electromagnetic wave reflection according to the present invention;
FIG. 3 is a schematic view of a portion of the structure of FIG. 2;
FIG. 4 is a sectional view taken along line A-A of FIG. 2;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is an enlarged view of a second portion of the structure of FIG. 4;
fig. 7 is an electrical block diagram of the electromagnetic wave reflection amount adjustment mechanism.
In the drawings, the components represented by the respective reference numerals are listed below:
1. unmanned aerial vehicle body, 2, electromagnetic wave reflection capacity adjustment mechanism, 210a, first winding shaft, 220a, second winding shaft, 230a, first support, 240a, first driving motor, 250a, second driving motor, 260a, haulage rope, 270a, flexible electromagnetic wave reflection of light piece, 280a, second support, 290a, first winding reel, 291a, first notch, 210b, second winding reel, 211b, second notch, 220b, guiding axle, 230b, a controller, 240b, wireless communication module.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
The electromagnetic wave reflection amount adjusting mechanism 2 includes a first winding shaft 210a, a second winding shaft 220a, a first support 230a, a first driving motor 240a, a second driving motor 250a, a traction rope 260a and a flexible electromagnetic wave reflection sheet 270a, the first support 230a is fixed on the inner wall of the unmanned aerial vehicle body 1, the first driving motor 240a is fixed on the first support 230a, the second driving motor 250a is fixed on the first support 230a, the first winding shaft 210a is connected with the main shaft of the first driving motor 240a, under normal conditions, the length direction of the first winding shaft 210a is the same as the length direction of the body of the unmanned aerial vehicle body 1, the second winding shaft 220a is connected with the main shaft of the second driving motor 250a, under normal conditions, the length direction of the second winding shaft 220a is the same as the length direction of the body of the unmanned aerial vehicle body 1, the rotation center line of the first winding shaft 210a, which rotates, driven by the first driving motor 240a, and the second driving motor 250a, drive the second winding shaft 220a a the rotation center lines of the rotation are parallel.
One end of the flexible electromagnetic wave reflecting sheet 270a is fixed to the second winding shaft 220a, the other end of the flexible electromagnetic wave reflecting sheet 270a is connected to one ends of a plurality of pulling cords 260a, and one end of each pulling cord 260a, which is far away from the flexible electromagnetic wave reflecting sheet 270a, is connected to the first winding shaft 210a, and in general, the length of the pulling cord 260a is greater than the distance between the first winding shaft 210a and the second winding shaft 220a, and the length of the flexible electromagnetic wave reflecting sheet 270a is greater than the distance between the first winding shaft 210a and the second winding shaft 220 a.
Example 2, as shown in fig. 1 to 6, this example is a further improvement on example 1, and specifically includes the following steps:
the electromagnetic wave reflection amount adjustment mechanism 2 further includes a second bracket 280a, and the second bracket 280a is fixed on the inner wall of the drone body 1, and in general, it is preferable that the second bracket 280a is arranged in parallel with the first bracket 230 a. One end of the first winding shaft 210a is rotatably connected to the first bracket 230a through a bearing, and the other end of the first winding shaft 210a is rotatably connected to the second bracket 280a through a bearing. One end of the second winding shaft 220a is rotatably coupled to the first bracket 230a through a bearing, and the other end of the second winding shaft 220a is rotatably coupled to the second bracket 280a through a bearing. A first driving motor 240a and a second driving motor 250a are fixed to the first bracket 230a, a main shaft of the first driving motor 240a is connected to the first winding shaft 210a, and a main shaft of the second driving motor 250a is connected to the second winding shaft 220 a.
Example 3, as shown in fig. 1 to 6, this example is a further improvement on example 2, and specifically includes the following:
the electromagnetic wave reflection amount adjusting mechanism 2 further includes a first winding drum 290a and a second winding drum 210b, the first winding drum 290a is sleeved on the first winding shaft 210a, that is, the inner diameter of the first winding drum 290a is larger than the outer diameter of the first winding shaft 210a, the second winding drum 210b is sleeved on the second winding shaft 220a, that is, the inner diameter of the second winding drum 210b is larger than the outer diameter of the second winding shaft 220a, two ends of the first winding drum 290a are respectively connected with the first bracket 230a and the second bracket 280a, and a first notch 291a for the pulling rope 260a and the flexible electromagnetic wave reflection sheet 270a to pass through is opened on the wall surface of the first winding drum 290 a. Two ends of the second winding drum 210b are respectively connected to the first bracket 230a and the second bracket 280a, and a second notch 211b for the pulling rope 260a and the flexible electromagnetic wave reflective sheet 270a to pass through is formed in a wall surface of the second winding drum 210 b.
Example 4, as shown in fig. 1 to 6, this example is a further improvement on example 3, and specifically includes the following steps:
the first driving motor 240a and the second driving motor 250a are respectively fixed on the first winding drum 290a and the second winding drum 210b, a main shaft of the first driving motor 240a is connected with the first winding shaft 210a through a transmission chain, and a main shaft of the second driving motor 250a is connected with the second winding shaft 220a through a transmission chain, wherein the transmission chain may be a gear transmission, a sprocket transmission or a belt transmission, which are common transmissions in the prior art.
Example 5, as shown in fig. 1 to 6, this example is a further improvement on example 4, and specifically includes the following:
the electromagnetic wave reflection amount adjusting mechanism 2 further includes a plurality of guide shafts 220b, two ends of the plurality of guide shafts 220b are rotatably connected to the first bracket 230a and the second bracket 280a, respectively, all the guide shafts 220b are located between the first winding shaft 210a and the second winding shaft 220a, all the guide shafts 220b are located inside the pulling rope 260a and the flexible electromagnetic wave reflecting sheet 270a, and guide the movement path of the pulling rope 260a and the flexible electromagnetic wave reflecting sheet 270a, the length of the pulling rope 260a is greater than that of the movement path, and the length of the flexible electromagnetic wave reflecting sheet 270a is greater than that of the movement path, and in a general case, all the guide shafts 220b are arranged in an arc shape.
Example 6, as shown in fig. 1 to 7, this example is a further improvement on any one of examples 1 to 5, and specifically includes the following steps:
the electromagnetic wave reflection amount adjusting mechanism 2 further comprises a controller 230b and a wireless communication module 240b, the first driving motor 240a and the second driving motor 250a are respectively electrically connected with the controller 230b, of course, in the actual application process, the controller 230b and the wireless communication module 240b can be directly omitted, and the first driving motor 240a and the second driving motor 250a are electrically connected with the flight control system of the unmanned aerial vehicle body 1; the controller 230b and the wireless communication module 240b are commercially available products, and the principles and structures thereof are not modified in this application.
Example 7, as shown in fig. 1 to 6, this example is a further improvement on any one of examples 1 to 6, and specifically includes the following steps:
the flexible electromagnetic wave reflection sheet 270a is made of an aluminum foil, and the thickness of the aluminum foil is generally 1mm to 5 mm.
Embodiment 8, as shown in fig. 1 to 6, this embodiment is a further improvement on any embodiment of embodiments 1 to 7, and specifically includes the following steps:
the number of the electromagnetic wave reflection quantity adjusting mechanisms 2 arranged in the inner cavity of the unmanned aerial vehicle body 1 is multiple, in the drawing shown in the embodiment, the inner cavity of the unmanned aerial vehicle body 1 is cylindrical, the number of the electromagnetic wave reflection quantity adjusting mechanisms 2 is four, the four electromagnetic wave reflection quantity adjusting mechanisms 2 are sequentially connected end to end, and the whole unmanned aerial vehicle body is arranged in an annular shape.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (8)
1. The target drone capable of adjusting the reflection amount of the electromagnetic waves is characterized by comprising an unmanned aerial vehicle body (1) and an electromagnetic wave reflection amount adjusting mechanism (2), wherein at least one electromagnetic wave reflection amount adjusting mechanism (2) is arranged on the inner wall of the unmanned aerial vehicle body (1); the electromagnetic wave reflection quantity adjusting mechanism (2) comprises a first winding shaft (210a), a second winding shaft (220a), a first support (230a), a first driving motor (240a), a second driving motor (250a), a traction rope (260a) and a flexible electromagnetic wave reflection sheet (270a), wherein the first support (230a) is fixed on the inner wall of the unmanned aerial vehicle body (1), the first driving motor (240a) and the second driving motor (250a) are fixed on the first support (230a), the first winding shaft (210a) is connected with a main shaft of the first driving motor (240a), the second winding shaft (220a) is connected with a main shaft of the second driving motor (250a), and a rotating center line of the first winding shaft (210a) driven by the first driving motor (240a) and a rotating center line parallel to a rotating center line of the second winding shaft (220a) driven by the second driving motor (250a) (ii) a One end of the flexible electromagnetic wave reflection sheet (270a) is fixed to the second winding shaft (220a), the other end of the flexible electromagnetic wave reflection sheet (270a) is connected to one ends of the plurality of pulling ropes (260a), and one end of each pulling rope (260a) far away from the flexible electromagnetic wave reflection sheet (270a) is connected to the first winding shaft (210 a).
2. The drone capable of adjusting the reflection amount of the electromagnetic wave according to claim 1, wherein the electromagnetic wave reflection amount adjusting mechanism (2) further comprises a second bracket (280a), the second bracket (280a) is fixed on an inner wall of the drone body (1), two ends of the first winding shaft (210a) are rotatably connected with the first bracket (230a) and the second bracket (280a) through bearings, two ends of the second winding shaft (220a) are rotatably connected with the first bracket (230a) and the second bracket (280a) through bearings, and a main shaft of the first driving motor (240a) and a main shaft of the second driving motor (250a) are connected with the first winding shaft (210a) and the second winding shaft (220a), respectively.
3. The target drone capable of adjusting the reflection amount of the electromagnetic wave according to claim 2, wherein the electromagnetic wave reflection amount adjusting mechanism (2) further comprises a first winding drum (290a) and a second winding drum (210b), the first winding drum (290a) and the second winding drum (210b) are respectively sleeved on the first winding shaft (210a) and the second winding shaft (220a), two ends of the first winding drum (290a) are respectively connected with the first bracket (230a) and the second bracket (280a), and a wall surface of the first winding drum (290a) is provided with a first notch 291a for the pulling rope (260a) and the flexible electromagnetic wave reflection sheet (270a) to pass through; two ends of the second winding drum (210b) are respectively connected with the first bracket (230a) and the second bracket (280a), and a second notch (211b) for the traction rope (260a) and the flexible electromagnetic wave reflection sheet (270a) to pass through is formed in the wall surface of the second winding drum (210 b).
4. A target machine capable of adjusting the reflection of electromagnetic waves, as claimed in claim 3, wherein the first driving motor (240a) and the second driving motor (250a) are fixed on the first winding cylinder (290a) and the second winding cylinder (210b), respectively, the main shaft of the first driving motor (240a) is connected with the first winding shaft (210a) through a transmission chain, and the main shaft of the second driving motor (250a) is connected with the second winding shaft (220a) through a transmission chain.
5. The drone capable of adjusting the reflection amount of the electromagnetic wave according to claim 3, wherein the electromagnetic wave reflection amount adjusting mechanism (2) further comprises a plurality of guide shafts (220b), both ends of the plurality of guide shafts (220b) are rotatably connected to the first bracket (230a) and the second bracket (280a), respectively, all the guide shafts (220b) are located between the first winding shaft (210a) and the second winding shaft (220a), and all the guide shafts (220b) are located inside the pulling rope (260a) and the flexible electromagnetic wave reflecting sheet (270a) and guide the movement path of the pulling rope (260a) and the flexible electromagnetic wave reflecting sheet (270 a).
6. The drone capable of adjusting the reflection of electromagnetic waves according to claim 1, wherein the electromagnetic wave reflection adjustment mechanism (2) further comprises a controller (230b) and a wireless communication module (240b), and the wireless communication module (240b), the first driving motor (240a) and the second driving motor (250a) are electrically connected to the controller (230b), respectively.
7. The drone of claim 1, wherein the flexible electromagnetic wave reflecting sheet (270a) is made of aluminum foil.
8. The drone capable of adjusting the reflection amount of the electromagnetic waves according to any one of claims 1 to 7, characterized in that the number of the electromagnetic wave reflection amount adjusting mechanisms (2) arranged in the inner cavity of the drone body (1) is plural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667642.1U CN210681159U (en) | 2019-09-30 | 2019-09-30 | Target drone capable of adjusting electromagnetic wave reflection quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667642.1U CN210681159U (en) | 2019-09-30 | 2019-09-30 | Target drone capable of adjusting electromagnetic wave reflection quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210681159U true CN210681159U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921667642.1U Active CN210681159U (en) | 2019-09-30 | 2019-09-30 | Target drone capable of adjusting electromagnetic wave reflection quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210681159U (en) |
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2019
- 2019-09-30 CN CN201921667642.1U patent/CN210681159U/en active Active
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