Photoelectric pod inner ring pitching driving structure and photoelectric pod

Abstract

The utility model discloses a photoelectric pod inner ring pitching driving structure and a photoelectric pod, and relates to the technical field of photoelectric pods, the photoelectric pod inner ring pitching driving structure comprises an optical bench and a mounting seat; according to the technical scheme, the base is arranged on the side face of the mounting base in the extending mode, the driving part connected with the optical bench is arranged on the base, so that far-end driving of the optical bench is achieved, the driving load of the driving part is reduced by prolonging the force arm for driving the optical bench, meanwhile, due to the fact that the driving part is arranged on one side of the optical bench, the distance between the driving part and the optical bench is increased. Therefore, the occupied space of the optical bench in the axial direction is reduced, optical elements can be reasonably distributed and installed on the surface of the optical bench, the utilization rate of the space in the photoelectric pod is improved, and the performance index of the photoelectric pod is ensured.

Description

Technical Field

[0001] This utility model relates to the field of optoelectronic pod technology, and in particular to an inner ring pitch drive structure for an optoelectronic pod and an optoelectronic pod. Background Technology

[0002] An electro-optical pod is a device that integrates multiple sensors and is mainly used for tasks such as reconnaissance, surveillance, target localization, and navigation. It is typically mounted on aircraft, drones, helicopters, or ground vehicles and can provide high-resolution images and precise target data.

[0003] To achieve multi-directional information collection, the optoelectronic pod needs to rotate at multiple angles. In related technologies, most two-axis, four-frame optoelectronic pods use brushless motors for direct drive. The brushless motor is directly mounted on the motor base on the inner ring, and its axis is coaxial with the pitch axis. The rotor of the brushless motor is directly connected to the optical bench, and the rotation of the brushless motor rotor directly drives the optical bench to rotate relative to the motor base. However, because the brushless motor is located in the extension direction of the optical bench's rotation direction, the thickness of the optical bench is increased, which in turn reduces the installation space for optical components and decreases space utilization. Utility Model Content

[0004] The main purpose of this invention is to propose an inner ring pitch drive structure for a photoelectric pod and a photoelectric pod, aiming to improve the utilization rate of the space inside the photoelectric pod.

[0005] To achieve the above objectives, the present invention proposes an inner ring pitch drive structure for an optoelectronic pod, comprising:

[0006] light bench;

[0007] Mounting base, wherein the optical bench is sleeved on the mounting base and rotatably connected to the mounting base;

[0008] The mounting base extends to a base on its side, and a driving unit is mounted on the base. The optical bench extends toward the driving unit and is connected to the driving unit.

[0009] In one embodiment, the optical bench is provided with a receiving cavity for accommodating the mounting base, and the mounting base is rotatably mounted in the receiving cavity;

[0010] The cavity has multiple rotating grooves around its periphery, which are connected to the cavity. The base passes through the rotating grooves and is connected to the mounting base.

[0011] In one embodiment, the mounting base is provided with a plurality of extensions on its periphery, and the plurality of extensions are spaced apart. One extension passes through one of the rotating slots, and the base is connected to one of the extensions.

[0012] The base is away from the rotation center of the optical bench.

[0013] In an embodiment, a gap is arranged between the extension and the rotation slot wall.

[0014] In an embodiment, the base and the mounting seat are in the same plane, and the driving part and the optical bench are in the same plane.

[0015] In an embodiment, two extensions are arranged oppositely to extend the rotation slot, and are connected with mounting parts.

[0016] In an embodiment, a first connecting part is arranged on the optical bench, and the first connecting part is arranged in the accommodating cavity, and a second connecting part is arranged on the mounting seat.

[0017] The first connecting part and the second connecting part are rotationally connected, so that the driving part drives the optical bench to rotate relative to the mounting seat.

[0018] In an embodiment, the driving part includes a stator and a rotor, the stator is mounted on the base, and the rotor is rotationally connected with the stator.

[0019] The rotor extends towards the optical bench and is connected with the optical bench.

[0020] In an embodiment, a third connecting part is arranged on the optical bench, the third connecting part extends towards the driving part and is connected with the rotor.

[0021] The utility model also proposes a kind of photoelectric pod, including the photoelectric pod inner ring pitch driving structure.

[0022] The technical scheme of the utility model extends base on the side surface of mounting seat, and driving part connected with optical bench is arranged on base, to realize remote driving of optical bench, the force arm of driving optical bench is extended, to reduce the driving load of driving part, and since driving part is arranged on one side of optical bench, the occupied space of optical bench in axial direction is reduced, to facilitate the reasonable distribution of optical element on the surface of optical bench, improve the utilization of photoelectric pod inner space, and ensure the performance index of photoelectric pod. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in these drawings without creative labor.

[0024] Figure 1 The structure schematic diagram of the embodiment of the optical-electric pod inner ring pitching driving structure provided by the present application is shown in the figure.

[0025] Figure 2 The structure schematic diagram of another embodiment of the optical-electric pod inner ring pitching driving structure provided by the present application is shown in the figure.

[0026] Figure 3 The top view structure schematic diagram of the mounting seat in the optical-electric pod inner ring pitching driving structure provided by the present application is shown in the figure.

[0027] Figure 4 The bottom view structure schematic diagram of the mounting seat in the optical-electric pod inner ring pitching driving structure provided by the present application is shown in the figure.

[0028] Figure 5 The bottom view structure schematic diagram of the optical bench in the optical-electric pod inner ring pitching driving structure provided by the present application is shown in the figure.

[0029] Figure 6 The top view structure schematic diagram of the optical bench in the optical-electric pod inner ring pitching driving structure provided by the present application is shown in the figure.

[0030] Explanation of the drawing reference numerals:

[0031] 100, optical-electric pod inner ring pitching driving structure; 10, optical bench; 11, gap; 12, accommodating cavity; 13, rotating groove; 14, third connecting part; 15, first connecting part; 20, mounting seat; 21, extension part; 22, mounting part; 24, base; 25, second connecting part; 30, driving part; 31, stator; 32, rotor.

[0032] The realization, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0034] It should be noted that if the embodiment of the utility model has directionality indication (such as up, down, left, right, front, back), the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain posture, if the certain posture changes, then the directionality indication also changes accordingly.

[0035] In addition, if the embodiment of the utility model has the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, "and / or" or "and / or" appears in the whole text, which means three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0036] Optical pod is a kind of equipment integrated with multiple sensors, mainly used for reconnaissance, monitoring, target positioning and navigation, etc., usually installed on aircraft, unmanned aerial vehicle, helicopter or ground vehicle, can provide high-resolution image and accurate target data,

[0037] In order to realize the collection of multi-direction information, the optical pod needs to rotate at multiple angles. In the related art, two-axis four-frame optical pod is mostly directly driven by brushless motor, and the brushless motor is directly installed on the motor base on the inner ring, the shaft center of the brushless motor is coaxial with the pitch shaft system, the rotor of the brushless motor is directly connected with the optical mount, and the optical mount is directly driven to rotate relative to the motor base by the rotation of the rotor of the brushless motor, but since the brushless motor is arranged in the extension direction of the rotation direction of the optical mount, the thickness of the optical mount is increased, and the installation space of the optical components is reduced, and the space utilization is reduced.

[0038] The utility model provides a kind of optical pod inner ring pitch driving structure.

[0039] Please refer to Figure 2 In an embodiment of the utility model, the optical pod inner ring pitch driving structure comprises:

[0040] optical mount 10;

[0041] The mounting base 20, the optical bench 10 is sleeved on the mounting base 20, and is rotationally connected with the mounting base 20.

[0042] The mounting base 20 is provided with a base 24 extending on the side, the driving part 30 is installed on the base 24, and the optical bench 10 extends towards the driving part 30 and is connected with the driving part 30.

[0043] It can be understood that the optical bench 10 is a basic platform for installing optical components, the mounting base is connected to the upper and lower inner ring azimuth structure of the optoelectronic pod, so that when the pitch angle is adjusted, the driving part 30 outputs power to drive the optical bench 10 to rotate relative to the mounting base 20, thereby realizing the rotation adjustment of the optical components.

[0044] As shown in the figure, Figures 1-2 The driving part 30 is arranged in a direction perpendicular to the rotation axis of the optical bench 10 and located on one side of the optical bench 10, so as to reduce the occupied space of the optical bench 10 in the rotation axis direction, thereby facilitating the installation of optical elements on the optical bench 10 and improving the utilization rate of the space in the optoelectronic pod.

[0045] In an embodiment, the driving part 30 is a voice coil motor.

[0046] The technical scheme of the utility model realizes the remote driving of the optical bench 10 by extending the base 24 on the side of the mounting base 20 and arranging the driving part 30 connected with the optical bench 10 on the base 24, so as to prolong the force arm for driving the optical bench 10, thereby reducing the driving load of the driving part 30. At the same time, the driving part 30 is arranged on one side of the optical bench 10, so as to reduce the occupied space of the optical bench 10 in the axial direction, so as to reasonably distribute and install optical elements on the surface of the optical bench 10, improve the utilization rate of the space in the optoelectronic pod, and ensure the performance index of the optoelectronic pod.

[0047] In an embodiment, the optical bench 10 is provided with a containing cavity 12 containing the mounting base 20, and the mounting base 20 is rotationally installed in the containing cavity 12.

[0048] The containing cavity 12 is provided with a plurality of rotating grooves 13, the rotating grooves 13 are communicated with the containing cavity 12, the base 24 penetrates the rotating grooves 13, and the mounting base 20 is connected with the base 24.

[0049] As shown in the figure, Figure 3 And Figure 5As shown, the receiving cavity 12 is provided on the optical bench 10, and the mounting seat 20 is disposed in the receiving cavity 12. In this way, the mounting seat 20 is installed in the optical bench 10, reducing the space occupied by the optical bench 10 in its rotational axial direction, and leaving more space for the optoelectronic pod to install optical components.

[0050] It is understood that, in order to achieve remote driving of the optical bench 10, so that the base 24 is disposed away from the mounting base 20, a rotating groove 13 communicating with the receiving cavity 12 is provided on the periphery of the receiving cavity 12, so that the base 24 extends toward the optical bench 10 and passes through the rotating groove 13 to connect with the mounting base 20.

[0051] It is understood that the rotating groove 13 is disposed on the optical bench 10 and located around the receiving cavity 12. The rotating groove 13, which is penetrated by the extension of the base 24, is designed to prevent interference between the optical bench 10 and the base 24 when the optical bench 10 rotates relative to the mounting base 20.

[0052] In one embodiment, the mounting base 20 is connected to a plurality of extensions 21 around its periphery, and the plurality of extensions 21 are spaced apart. One extension 21 passes through one of the rotating slots 13, and the base 24 is connected to one of the extensions 21.

[0053] The base 24 is located away from the rotation center of the optical bench 10.

[0054] like Figure 4 As shown, in order to increase the lever arm length of the optical bench 10, the mounting base 20 is connected to a plurality of extensions 21 around its periphery, and one of the extensions 21 passes through a rotating groove 13 and is connected to the base 24.

[0055] It is understood that by extending the extension 21, the base 24 is moved away from the rotation center of the optical bench 10. Since the drive unit 30 is mounted on the surface of the base 24 and is connected to the optical bench 10, the lever arm between the drive unit 30 and the optical bench 10 is increased, the torque requirement of the drive unit is reduced, and the efficiency is improved.

[0056] In one embodiment, a gap 11 is provided between the extension 21 and the wall of the rotating groove 13.

[0057] like Figure 2 As shown, in order to avoid interference between the rotation of the optical bench 10 and the mounting base 20, a gap 11 is provided between the extension 21 and the rotating groove 13.

[0058] It can be understood that the gap 11 is arranged to leave room for the rotation of the optical bench 10 relative to the mounting base 20, thereby facilitating the rotation of the optical bench 10.

[0059] The size of the gap 11 limits the rotation angle of the optical bench 10.

[0060] Preferably, the groove type of the rotation groove 13 is arranged according to the rotation arc of the extension 21 relative to the optical bench 10 when the optical bench 10 rotates, thereby reducing the restriction of the extension 21 on the rotation of the optical bench 10.

[0061] In an embodiment, the base 24 is in the same plane as the mounting base 20, and the driving part 30 is in the same plane as the optical bench 10.

[0062] It can be understood that the base 24 is in the same plane as the mounting base 20, and the driving part 30 is in the same plane as the optical bench 10, since the mounting base 20 is mounted in the optical bench 10, thereby reducing the thickness of the optical bench 10 in the rotation axis direction when ensuring that the driving part 30 normally drives the rotation of the optical bench 10, thereby leaving more space for the installation of optical components on the surface of the optical bench 10 and improving the utilization of space.

[0063] In an embodiment, two extension 21s are arranged opposite to each other and extend out of the rotation groove 13, and are both connected with a mounting part 22.

[0064] In order to facilitate the installation of the mounting base 20 on the upper and lower inner ring azimuth structure, the mounting part 22 is arranged on the part of the two opposite extension 21s extending out of the rotation groove 13, and is connected with the upper and lower inner ring azimuth structure through the two mounting parts 22, thereby achieving the fixed installation of the mounting part 22.

[0065] It can be understood that the mounting part 22 is provided with a plurality of mounting holes, so that the connecting member passes through the mounting hole and is connected with the inner ring azimuth structure, and when the driving part 30 drives the rotation of the optical bench 10 relative to the mounting base 20, the optical bench 10 and the optical components installed on the surface of the optical bench 10 realize the pitching action, thereby ensuring the information collection range of the optical components.

[0066] In an embodiment, the connecting member can be a screw.

[0067] In an embodiment, the optical bench 10 is provided with a first connecting part 15, and the first connecting part 15 is arranged in the accommodation cavity 12, and the mounting base 20 is provided with a second connecting part 25.

[0068] The first connecting part 15 is rotatably connected to the second connecting part 25 so that the driving part 30 drives the optical bench 10 to rotate relative to the mounting base 20.

[0069] like Figure 3 and Figure 6 As shown, when the mounting base 20 is installed in the receiving cavity 12, the first connecting part 15 is connected to the second connecting part 25, thereby making the rotation axis of the optical bench 10 coincide with the rotation center of the mounting base 20, thus restricting the rotation center of the optical bench 10.

[0070] It is understood that by setting the extension 21, the distance between the mounting base 20 and the base 24 is extended, and the entire mounting base 20 is made into an "I" shaped structure, thereby increasing the driving force arm between the driving unit 30 and the optical bench 10, realizing remote driving of the optical bench 10, and achieving the effect of reducing motor torque.

[0071] In one embodiment, the drive unit 30 includes a stator 31 and a rotor 32, the stator 31 being mounted on the base 24, and the rotor 32 being rotatably connected to the stator 31;

[0072] The rotor 32 extends toward the optical bench 10 and is connected to the optical bench 10.

[0073] It is understood that the stator 31 is rotatably connected to the rotor 32. When the drive unit 30 is energized, the rotor is deflected by the magnetic force in the stator 31, thereby driving the optical bench 10 to rotate around the first connecting part 15.

[0074] It should be noted that the deflection center of the rotor 32 coincides with the rotation center of the optical bench 10.

[0075] In one embodiment, the optical bench 10 is provided with a third connecting portion 14, which extends toward the driving portion 30 and is connected to the rotor 32.

[0076] In order to achieve a stable connection between the optical bench 10 and the rotor 32, the optical bench 10 is provided with a third connecting part 14 on the side facing the driving part 30. The rigid connection between the third connecting part 14 and the rotor 32 ensures that the rotor 32 can stably drive the optical bench 10 to rotate when it moves.

[0077] It can be understood that one end of the third connecting part 14 overlaps the surface of the rotor 32, and a first connecting hole is arranged on one end of the third connecting part 14, and a second connecting hole is arranged on the surface of the rotor 32, and the first connecting hole is arranged opposite to the second connecting hole.

[0078] A connecting member such as a bolt penetrates the first connecting hole and the second connecting hole, so that the third connecting part 14 and the rotor 32 are stably connected, and the stable transmission is ensured.

[0079] The utility model discloses still propose a kind of photoelectric pod, and the photoelectric pod includes the photoelectric pod inner ring pitch driving structure, and the specific structure of the photoelectric pod inner ring pitch driving structure refers to above-mentioned embodiment, since the photoelectric pod has adopted all technical solutions of above-mentioned all embodiments, thus at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer repeat.

[0080] The above-mentioned is only the exemplary embodiment of the utility model, and not therefore limit the patent range of the utility model, all equivalent structural transformations made in the technical concept of the utility model using the utility model specification and drawing contents or directly / indirectly applied in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A pitch drive structure for an inner ring of a photoelectric pod, characterized in that, The utility model relates to a kind of optoelectronic pod inner ring pitch driving structure, including: Optical bench; Mounting seat, the optical bench is sleeved in the mounting seat, and is rotationally connected with the mounting seat; Wherein, the mounting seat side is extended and is provided with pedestal, the driving portion is installed on the pedestal, the optical bench portion extends towards the driving portion, and is connected with the driving portion.

2. The optical pod inner ring pitch drive structure of claim 1, wherein, The optical bench is provided with containing cavity containing the mounting seat, and the mounting seat is rotationally installed in the containing cavity; Wherein, the containing cavity periphery is provided with a plurality of rotation grooves, the rotation groove is communicated containing cavity, the pedestal is arranged in the rotation groove, and is connected with the mounting seat.

3. The optical pod inner ring pitch drive structure of claim 2, wherein, The mounting seat periphery is connected with a plurality of extension parts, and a plurality of the extension parts are arranged at intervals, one extension part is arranged in one rotation groove, and the pedestal is connected with one extension part; Wherein, the pedestal is away from the rotation center of the optical bench.

4. The optical pod inner ring pitch drive structure of claim 3, wherein, The gap is arranged between the extension part and the rotation groove groove wall.

5. The optical pod inner ring pitch drive structure of claim 3, wherein, The pedestal and the mounting seat are in the same plane, and the driving portion and the optical bench are in the same plane.

6. The optical pod inner ring pitch drive structure of claim 3, wherein, Two extension parts are arranged out of the rotation groove, and are connected with mounting portion.

7. The optical pod inner ring pitch drive structure of claim 2, wherein, The optical bench is provided with first connecting portion, and the first connecting portion is arranged in the containing cavity, and the mounting seat is provided with second connecting portion; Wherein, the first connecting portion and the second connecting portion are rotationally connected, so that the driving portion drives the optical bench to rotate relative to the mounting seat.

8. The optical pod inner ring pitch drive structure of any one of claims 1 to 7, wherein, The driving portion includes stator and rotor, the stator is installed on the pedestal, and the rotor is rotationally connected with the stator; Wherein, the rotor extends towards the optical bench, and is connected with the optical bench.

9. The optical pod inner ring pitch drive structure of claim 8, wherein, The optical bench is provided with third connecting portion, the third connecting portion extends towards the driving portion, and is connected with the rotor.

10. An optical pod, comprising: Including optoelectronic pod inner ring pitch driving structure as claimed in any one of claims 1 to 9.

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