Multi-spectrum photoelectric turret

Abstract

The invention provides a multi-spectrum photoelectric turret, which belongs to the technical field of airborne photoelectric equipment and specifically comprises a mounting frame, a shell, a splicing light window, a first driving part, an inner frame and a multi-spectrum sensor component, one end of the mounting frame is fixedly mounted on a carrier, the shell is rotationally mounted at the other end of the mounting frame, the splicing light window is fixedly connected with the shell, the splicing light window comprises a plurality of planes, a cavity is defined by the splicing light window and the shell, and the first driving part is used for driving the shell to perform azimuth rotation; the shell is provided with a cavity, the inner frame is located in the cavity, the inner frame is rotatably installed on the shell and performs pitching rotation relative to the shell, the multi-spectrum sensor component is located in the cavity, the multi-spectrum sensor component is rotatably installed on the inner frame, and the multi-spectrum sensor component performs azimuth rotation relative to the inner frame. According to the processing scheme, the aerodynamic resistance of the photoelectric turret and the radar scattering sectional area of the whole machine are reduced.

Description

Technical Field

[0001] The present application relates to the field of airborne optoelectronic equipment, and in particular to a multi-spectrum optoelectronic turret. Background Art

[0002] The power consumed by aerodynamic drag is the main component of the total power of the helicopter. Aerodynamic drag is an important factor affecting the maximum speed and fuel consumption. Traditional helicopter-mounted optoelectronic turrets do not adopt effective conformal measures, resulting in a turbulent layer at the rear end of the optoelectronic turret during flight, which generates large aerodynamic drag. Therefore, it is necessary to design an optoelectronic turret with low aerodynamic drag that conforms to the helicopter to improve the performance of the helicopter.

[0003] In order to achieve the suddenness, concealment and safety of the action during the mission, the helicopter needs to have a certain stealth performance to reduce the detection distance of the enemy's ground and air radar. The traditional optoelectronic turret is directly suspended at the front of the helicopter, and there is no conformal design between it and the helicopter body, and no stealth design measures are adopted, which ultimately makes the radar cross-section RCS of the whole aircraft larger. Summary of the invention

[0004] In view of this, the present application provides a multi-spectrum optoelectronic turret, which solves the problems in the prior art and reduces the aerodynamic resistance of the optoelectronic turret and the radar cross-sectional area of ​​the entire machine.

[0005] The multi-spectrum optoelectronic turret provided in this application adopts the following technical solution:

[0006] A multi-spectrum optoelectronic turret comprises a mounting frame, a housing, a spliced ​​optical window, a first driving member, an inner frame and a multi-spectrum sensor component;

[0007] One end of the mounting frame is fixedly mounted on the carrier, the shell is rotatably mounted on the other end of the mounting frame, the spliced ​​light window is fixedly connected to the shell, the spliced ​​light window includes a plurality of planes, the spliced ​​light window and the shell form a cavity, and the first driving member is used to drive the shell to rotate in an azimuth;

[0008] The inner frame is located in the cavity, the inner frame is rotatably mounted on the shell, and the inner frame performs pitch rotation relative to the shell. The multi-spectrum sensor component is located in the cavity, the multi-spectrum sensor component is rotatably mounted on the inner frame, and the multi-spectrum sensor component performs azimuth rotation relative to the inner frame.

[0009] Optionally, a groove is provided on the carrier, the mounting frame is connected to the top of the groove, and the rotating shaft of the shell is located in the groove.

[0010] Optionally, the shell is provided with an opening for installing a spliced ​​light window, and the shell is a rotating body, comprising a middle annular ring and a plurality of conical sections, the middle annular ring corresponds to the maximum width position of the carrier aircraft nose, and the conical sections gradually narrow from a side close to the middle annular ring to a side away from the middle annular ring.

[0011] Optionally, the spliced ​​light window is divided into multiple first structure sections along the vertical direction, each first structure section corresponds to each conical section of the shell one by one, and the vertical inclination direction of each first structure section is consistent with the inclination direction of the corresponding conical section.

[0012] Optionally, the shell includes three conical sections, a conical section is provided above the middle annular ring, two conical sections are provided below the middle annular ring, the spliced ​​light window is divided into three sections of first structures along the vertical direction, the three sections of the first structures are distributed in sequence along the vertical direction, a first structure is provided above the middle annular ring, and two first structures are provided below the middle annular ring.

[0013] Optionally, each first structure of the spliced ​​light window is equally divided into two second structures along the heading direction, and the two second structures gradually protrude from the opening edge of the shell to the position where the two second structures are connected to each other in the heading direction.

[0014] Optionally, the opening edge of the shell is provided with multiple transition profiles, and each of the transition profiles corresponds to and is flush with the outer surface of each first structure of the spliced ​​light window;

[0015] The opening side wall of the shell is provided with a first annular protrusion near the outer side of the cavity, and the circumferential side wall of the spliced ​​light window is provided with a second annular protrusion near the inner side, and the end surface of the second annular protrusion facing the outer side of the cavity abuts against the end surface of the first annular protrusion facing the inner side of the cavity.

[0016] Optionally, a sealing structure is filled between the connection gap between the shell and the spliced ​​light window.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] In the present application, the housing only rotates in azimuth relative to the carrier aircraft, and the multi-spectrum sensor component rotates in pitch direction through the inner frame located in the housing. This reduces the shape change of the multi-spectrum optoelectronic turret housing, facilitates the conformal design of the multi-spectrum optoelectronic turret and the carrier aircraft, reduces the aerodynamic drag of the multi-spectrum optoelectronic turret, and reduces the radar cross-sectional area of ​​the entire aircraft, thereby improving the stealth performance of the carrier aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the multi-spectrum optoelectronic turret of this application installed on a carrier aircraft;

[0021] Figure 2 This is a schematic diagram of the specific structure of the housing and spliced ​​light windows of this application;

[0022] Figure 3 This is a front view of the optoelectronic turret of this application;

[0023] Figure 4 This is a schematic diagram of the structure inside the shell of this application;

[0024] Figure 5 This is a schematic diagram of the structure of the internal frame connecting the shell and the multi-spectrum sensor components of the present application;

[0025] Figure 6 This is a schematic diagram of the structure of the connection between the opening edge of the shell and the spliced ​​light window of the present application.

[0026] Explanation of the reference numerals in the accompanying drawings: 10. optoelectronic turret; 20. carrier aircraft; 11. spliced ​​light window; 111. first structure; 112. second structure; 113. second annular protrusion; 12. shell; 121. middle annular ring; 122. conical section; 123. first annular protrusion; 13. mounting bracket; 14. multi-spectral sensor component; 141. short-wave infrared / visible light / medium-wave infrared common aperture sensor; 142. continuous-zoom infrared sensor; 143. continuous-zoom television sensor; 144. laser light finder; 15. inner frame; 151. inner azimuth upper half-axis system; 152. inner pitch right half-axis system; 153. inner pitch left half-axis system; 154. inner azimuth lower half-axis system; 16. sealing structure. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0028] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0029] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0030] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0031] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0032] An embodiment of the present application provides a multi-spectrum optoelectronic turret.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a multi-spectrum optoelectronic turret includes a mounting frame 13, a shell 12, a spliced ​​light window 11, a first driving member, an inner frame 15 and a multi-spectrum sensor component 14.

[0034] One end of the mounting frame 13 is fixedly mounted on the carrier 20, and the housing 12 is rotatably mounted on the other end of the mounting frame 13. The spliced ​​light window 11 is fixedly connected to the housing 12. The spliced ​​light window 11 includes multiple planes. The spliced ​​light window 11 and the housing 12 form a cavity. The first driving member is used to drive the housing 12 to rotate in an azimuth. In one embodiment, the first driving member can be a combination of a motor and a reducer. The motor and the reducer are fixed in the mounting frame 13, and the output end of the reducer is connected to the housing 12 to drive the housing 12 to rotate.

[0035] The inner frame 15 is located in the cavity, the inner frame 15 is rotatably mounted on the shell 12, and the inner frame 15 performs pitch rotation relative to the shell 12. The multi-spectrum sensor component 14 is located in the cavity, the multi-spectrum sensor component 14 is rotatably mounted on the inner frame 15, and the multi-spectrum sensor component 14 performs azimuth rotation relative to the inner frame 15.

[0036] In the present application, the housing 12 only rotates in azimuth relative to the carrier 20, and the multi-spectrum sensor component 14 rotates in elevation through the inner frame 15 located in the housing 12. The shape change of the housing 12 of the multi-spectrum optoelectronic turret 10 is reduced, which facilitates the conformal design of the multi-spectrum optoelectronic turret 10 and the carrier 20, reduces the aerodynamic drag of the multi-spectrum optoelectronic turret 10, and reduces the radar cross-sectional area of ​​the whole aircraft, thereby improving the stealth performance of the carrier 20.

[0037] The carrier 20 is provided with a groove, the mounting frame 13 is connected to the top of the groove, and the rotating shaft of the housing 12 is located in the groove. The photoelectric turret 10 is half-buried in the head of the carrier 20.

[0038] The shell 12 is provided with an opening for installing the spliced ​​light window 11. The shell 12 is a rotating body. The shell 12 includes a middle annular ring 121 and a plurality of tapered sections 122. The middle annular ring 121 corresponds to the maximum width position of the nose of the carrier 20. The tapered sections 122 gradually narrow from the side close to the middle annular ring 121 to the side away from the middle annular ring 121. The shell 12 of the present application is conformal to the carrier 20, and the shell 12 and the carrier 20 transition smoothly, reducing aerodynamic resistance. The shell 12 is a polyhedron configuration to reduce the radar cross-sectional area of ​​the whole aircraft.

[0039] The spliced ​​light window 11 is divided into multiple first structures 111 along the vertical direction. Each first structure 111 corresponds to each conical segment 122 of the shell 12 one by one, and the vertical inclination direction of each first structure 111 is consistent with the inclination direction of the corresponding conical segment 122.

[0040] The shell 12 includes three conical sections 122, a conical section 122 is provided above the middle annular ring 121, and two conical sections 122 are provided below the middle annular ring 121. The top conical section 122 gradually shrinks from bottom to top, the middle conical section 122 gradually expands from top to bottom, and the bottom conical section 122 gradually shrinks from top to bottom; the spliced ​​light window 11 is divided into three sections of first structures 111 along the vertical direction, and the three sections of the first structures 111 are distributed in sequence along the vertical direction, a first structure 111 is provided above the middle annular ring 121, and two first structures 111 are provided below the middle annular ring 121. Specifically, among the three sections of the first structure 111, the top first structure 111 gradually tilts from bottom to top toward the rear of the carrier 20, and the middle first structure 111 and the bottom first structure 111 gradually tilt from top to bottom toward the rear of the carrier 20, so that the design of the third section structure and the spliced ​​light window 11 and the inclination directions of each conical section 122 of the shell 12 correspond to each other, ensuring the uniformity of the appearance of the entire optoelectronic turret 10. The entire rotating part is basically rotationally symmetrical, which greatly reduces the aerodynamic resistance during azimuth rotation; the pitch movement of the optoelectronic turret 10 is achieved through the internal frame 15 components inside the turret, and the internal movement does not affect the aerodynamic resistance of the turret.

[0041] Each first structure 111 of the spliced ​​light window 11 is equally divided into two second structures 112 along the heading direction, and the two second structures 112 gradually protrude from the opening edge of the shell 12 to the position where the two second structures 112 are connected to each other in the heading direction, thereby further improving the uniformity of the appearance of the spliced ​​light window 11 and the shell 12 and reducing the aerodynamic resistance.

[0042] like Figure 5 As shown, the opening edge of the shell 12 is provided with multiple transition profiles, and each of the transition profiles corresponds to and is flush with the outer surface of each first structure 111 of the spliced ​​light window 11. The opening side wall of the shell 12 is provided with a first annular protrusion 123 near the outer side of the cavity, and the circumferential side wall of the spliced ​​light window 11 is provided with a second annular protrusion 113 near the inner side, and the end surface of the second annular protrusion 113 facing the outer side of the cavity abuts against the end surface of the first annular protrusion 123 facing the inner side of the cavity. The outer surfaces of the connection position of the shell 12 and the spliced ​​light window 11 are flush, so that the step difference of the outer surfaces of the two is controlled within 0.05mm, reducing dihedral angle scattering, thereby reducing the radar scattering cross-sectional area of ​​the whole machine.

[0043] A sealing structure 16 is filled between the connection gap between the housing 12 and the spliced ​​light window 11 .

[0044] like Figure 5As shown, in one embodiment, the multi-spectrum sensor component 14 includes a short-wave infrared / visible light / medium-wave infrared common aperture sensor 141, a continuous-focus infrared sensor 142, a continuous-focus television sensor 143 and a laser light meter 144, so as to realize the detection function of the optoelectronic turret 10 for different spectra.

[0045] Regarding the connection between the inner frame 15 and the shell 12, and the connection between the inner frame 15 and the multi-spectrum sensor component 14. The shell 12 is provided with an inner azimuth upper half axis system 151, an inner azimuth lower half axis system 154, an inner pitch right half axis system 152, and an inner pitch left half axis system 153. The turret shell 12 and the inner frame 15 are connected by the inner pitch right half axis system 152 and the inner pitch left half axis system 153 to realize the inner pitch rotation of the inner frame 15 relative to the shell 12; the inner frame 15 and the multi-spectrum sensor component 14 are connected by the inner azimuth upper half axis system 151 and the inner azimuth lower half axis system 154 to realize the inner azimuth rotation of the multi-spectrum sensor component 14 relative to the inner frame 15.

[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A multi-spectrum optoelectronic turret, characterized in that: It comprises a mounting frame (13), a housing (12), a spliced ​​light window (11), a first driving member, an inner frame (15) and a multi-spectrum sensor component (14); One end of the mounting frame (13) is fixedly mounted on the carrier (20), the housing (12) is rotatably mounted on the other end of the mounting frame (13), the spliced ​​light window (11) and the housing (12) are fixedly connected, the spliced ​​light window (11) comprises a plurality of planes, the spliced ​​light window (11) and the housing (12) form a cavity, and the first driving member is used to drive the housing (12) to rotate in an azimuth manner; The inner frame (15) is located in the cavity, the inner frame (15) is rotatably mounted on the shell (12), and the inner frame (15) performs pitch rotation relative to the shell (12); the multi-spectrum sensor component (14) is located in the cavity, the multi-spectrum sensor component (14) is rotatably mounted on the inner frame (15), and the multi-spectrum sensor component (14) performs azimuth rotation relative to the inner frame (15).

2. The multi-spectrum optoelectronic turret according to claim 1, characterized in that: The carrier (20) is provided with a groove, the mounting frame (13) is connected to the top of the groove, and the rotary shaft of the housing (12) is located in the groove.

3. The multi-spectrum optoelectronic turret according to claim 1, characterized in that: The shell (12) is provided with an opening for installing the spliced ​​light window (11); the shell (12) is a rotating body; the shell (12) comprises a middle annular ring (121) and a plurality of conical sections (122); the middle annular ring (121) corresponds to the maximum width position of the nose of the carrier aircraft (20); and the conical sections (122) gradually narrow from a side close to the middle annular ring (121) to a side away from the middle annular ring (121).

4. The multi-spectrum optoelectronic turret according to claim 3, characterized in that: The spliced ​​light window (11) is divided into a plurality of first structures (111) in the vertical direction, each first structure (111) corresponds to each conical segment (122) of the housing (12) one by one, and the vertical inclination direction of each first structure (111) is consistent with the inclination direction of the corresponding conical segment (122).

5. The multi-spectrum optoelectronic turret according to claim 4, characterized in that: The shell (12) comprises three conical sections (122), one conical section (122) is provided above the middle annular ring (121), and two conical sections (122) are provided below the middle annular ring (121); the spliced ​​light window (11) is divided into three sections of first structures (111) in the vertical direction, and the three sections of the first structures (111) are distributed in sequence in the vertical direction; one first structure (111) is provided above the middle annular ring (121), and two first structures (111) are provided below the middle annular ring (121).

6. The multi-spectrum optoelectronic turret according to claim 4, characterized in that: Each first structure (111) of the spliced ​​light window (11) is equally divided into two second structures (112) along the heading direction, and the two second structures (112) gradually protrude from the opening edge of the shell (12) to the position where the two second structures (112) are connected to each other in the heading direction.

7. The multi-spectrum optoelectronic turret according to claim 6, characterized in that: The opening edge of the shell (12) is provided with a plurality of transition profiles, and each of the transition profiles corresponds one-to-one with and is flush with the outer surface of each first structure (111) of the spliced ​​light window (11); The opening side wall of the shell (12) is provided with a first annular protrusion (123) near the outside of the cavity, and the circumferential side wall of the spliced ​​light window (11) is provided with a second annular protrusion (113) near the inside, and the end surface of the second annular protrusion (113) facing the outside of the cavity abuts against the end surface of the first annular protrusion (123) facing the inside of the cavity.

8. The multi-spectrum optoelectronic turret according to claim 7, characterized in that: A sealing structure (16) is filled between the connection gap between the housing (12) and the spliced ​​light window (11).

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