CN215673347U - Photoelectric pod double-layer vibration damping device - Google Patents
Photoelectric pod double-layer vibration damping device Download PDFInfo
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- CN215673347U CN215673347U CN202121679966.4U CN202121679966U CN215673347U CN 215673347 U CN215673347 U CN 215673347U CN 202121679966 U CN202121679966 U CN 202121679966U CN 215673347 U CN215673347 U CN 215673347U
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Abstract
The utility model discloses a photoelectric pod double-layer vibration damping device, which comprises a first vibration damping plate, a second vibration damping plate and a third vibration damping plate, wherein the first vibration damping plate is connected with an external pod, a plurality of vibration dampers are uniformly arranged at the lower end of the first vibration damping plate, and a first vibration damping layer is formed; the upper end of the second vibration reduction plate is connected with the vibration absorber arranged on the first vibration reduction plate, and the lower end of the second vibration reduction plate is uniformly provided with a plurality of vibration absorbers to form a second vibration reduction layer; the upper end of the third vibration damping plate is connected to a vibration damper arranged at the lower end of the second vibration damping plate and is connected with an externally-connected aircraft; the double-layer vibration damper is reasonable in design, simple in structure, small in size, simple to assemble, strong in vibration environment adaptability, good in torsion resistance and suitable for batch production.
Description
Technical Field
The utility model relates to the field of pod vibration reduction, in particular to a photoelectric pod double-layer vibration reduction device.
Background
The small photoelectric pod is often used on different types of airplanes, different frequencies and different types of airplanes, and the problem of poor matching degree of a damping scheme caused by the small photoelectric pod is common. The phenomena of virtual focus, shaking, torsion and the like of the photoelectric pod image can be caused if the matching degree of the vibration reduction scheme is not good. Therefore, matching damping solutions has been a difficult control for aircraft during nacelle use. A conventional means of controlling the image stabilization of a photovoltaic pod is to customize the damping scheme specifically for each type of aircraft. The problems that the selection difficulty of the shock absorbers of various shock absorption schemes is high due to the influences of different vibration frequencies of various airplanes, different vibration excitation directions in the flight process and the like are often caused, and each shock absorption scheme can be finally determined after long-time ground test selection and air test verification. The method inevitably brings the problem that the matching process of the vibration reduction scheme greatly increases the production cost and the production time of the photoelectric pod.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the defects, the utility model provides the double-layer vibration damper which is reasonable in design, simple in structure, small in size and simple to assemble.
The utility model is realized by constructing a double-layer vibration damper of an optoelectronic pod, which comprises
The first vibration reduction plate is connected with an external pod, a plurality of vibration reducers are uniformly arranged at the lower end of the first vibration reduction plate, and a first vibration reduction layer is formed;
the upper end of the second vibration reduction plate is connected with the vibration absorber arranged on the first vibration reduction plate, and the lower end of the second vibration reduction plate is uniformly provided with a plurality of vibration absorbers to form a second vibration reduction layer; and
and the upper end of the third vibration reduction plate is connected to a vibration absorber arranged at the lower end of the second vibration reduction plate and is connected with an external aircraft.
Preferably, the vibration dampers of the first vibration damping layer and the second vibration damping layer are arranged in a staggered mode, and the purpose of the arrangement is to enable stress to be more uniform and enable the vibration damping effect to be better.
Preferably, the first damping plate is cylindrical, and a plurality of pod connecting holes convenient for connecting pods of various models are formed in the upper end of the first damping plate.
Preferably, the lower edge of the first damping plate is provided with a plurality of lugs for mounting the damper.
Preferably, the second damping plate and the third damping plate are disc-shaped and are uniformly provided with a plurality of shock absorber mounting holes. The purpose of this arrangement is to bring the damping device mounting plane as close as possible to the centre of gravity of the nacelle.
Preferably, the outer wall of the third damping plate is uniformly provided with a plurality of aircraft connecting lugs extending outwards. The purpose of this setting is to make various types of aircraft connect conveniently, the aircraft (the aircraft) of multiple model of adaptation.
The utility model has the following advantages:
the utility model has reasonable design, simple structure, small volume, simple assembly, strong adaptability to the vibration environment, good torsion resistance and suitability for batch production;
meanwhile, the utility model is easier to adjust the integral rigidity of the vibration damping system, reduces the integral frequency of the vibration damping system and controls the phenomena of virtual focusing, shaking and torsion of the image of the photoelectric pod outside the stable flight stage of the airplane, thereby realizing the purposes of stabilizing the photoelectric pod platform and weakening or eliminating the phenomena of virtual focusing, shaking and torsion of the image in the use process, and having reasonable structural design, simple assembly and convenient disassembly and maintenance.
The photoelectric pod has the advantages that the stability of the platform in a vibration environment is guaranteed through the improvement of the double-layer vibration damping structure, the design of the vibration damping plate and the layout and installation of the vibration dampers, the problem that the image of the photoelectric pod is seriously interfered by the vibration environment is weakened or eliminated, the design scheme is reasonable and feasible, the environmental suitability is high, and the photoelectric pod is suitable for unmanned planes or manned planes such as fixed-wing airplanes, multi-rotor airplanes and helicopters; the small photoelectric pod can effectively control the phenomena of virtual focus, shaking and torsion of the image.
Compared with the vibration damping design scheme of other products on the market, the vibration damping design scheme has stronger environmental adaptability, better torsion resistance and easier adjustment of the rigidity of the vibration damping structure system, and can avoid the problems of mass volume increase, difficult matching of the vibration damper and the like caused by the vibration damping design of the conventional photoelectric pod for controlling the phenomena of virtual focus, shaking and torsion of images.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is an exploded schematic view of the present invention;
FIG. 4 is a force diagram of the present invention;
in the figure: 1. a first damping plate; 2. a shock absorber; 3. a second damping plate; 4. a third damping plate; 5. an aircraft attachment lug; 6. a pod attachment hole; 7. a lug.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 3, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1 and 2, the utility model provides a photoelectric pod double-layer damping device by improvement, which comprises
The first damping plate 1 is connected with an external pod, a plurality of dampers 2 are uniformly arranged at the lower end of the first damping plate, and a first damping layer is formed;
the upper end of the second vibration damping plate 3 is connected with the vibration dampers 2 arranged on the first vibration damping plate 1, the lower end of the second vibration damping plate is uniformly provided with a plurality of vibration dampers 2, and a second vibration damping layer is formed; and
and the upper end of the third damping plate 4 is connected to the shock absorber 2 arranged at the lower end of the second damping plate 3 and is connected with an external aircraft.
In this embodiment, the dampers of the first damping layer are arranged offset from the dampers of the second damping layer.
In the present embodiment, the first damping plate 1 is cylindrical, and a plurality of pod attachment holes 6 are formed at the upper end thereof to facilitate attachment of pods of various models.
As shown in fig. 3, in the present embodiment, a plurality of lugs 7 for mounting the damper 2 are formed at the lower edge of the first damping plate 1.
In this embodiment, the second damping plate 3 and the third damping plate 4 are disc-shaped and are uniformly provided with a plurality of damper mounting holes.
In this embodiment, the third damping plate 4 is an outer wall that is uniformly provided with a plurality of outwardly extending aircraft attachment lugs 5.
In the damping system, the damper can be considered as a spring with a spring rate K, as shown in fig. 4. After two springs are connected in series, the stiffness coefficient K = (K1 × K2)/(K1+ K2) = F/Δ X. From the formula, it can be seen that in the double-layer vibration damping system, under the condition of a certain load, the stress is F, the lower the selected rigidity coefficient of the vibration damper is, the more the whole rigidity coefficient of the double-layer vibration damping system is reduced, and the larger the deformation of the vibration damper is. The scheme can easily reduce the rigidity coefficient of the vibration damper, thereby achieving the purposes of adjusting the frequency of a vibration damping system and weakening or eliminating the phenomena of virtual focus, shaking and torsion of an image.
When the photoelectric pod platform is used, the aircraft connecting lug of the third vibration damping plate is connected with an aircraft (airplane), and the first vibration damping plate pod connecting hole is connected with the pod, so that after the installation is completed, the whole rigidity of a vibration damping system is easier to adjust, the whole frequency of the vibration damping system is reduced, and the image virtual focus, shaking and twisting phenomena of the photoelectric pod are controlled outside the stable flight stage of the airplane, so that the aims of stabilizing the photoelectric pod platform and weakening or eliminating the image virtual focus, shaking and twisting phenomena in the use process are fulfilled; structural design is reasonable, and the assembly is simple, convenient to detach maintenance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A photoelectric pod double-layer damping device is characterized in that: comprises that
The first vibration reduction plate (1) is connected with an external nacelle, a plurality of vibration reducers (2) are uniformly arranged at the lower end of the first vibration reduction plate, and a first vibration reduction layer is formed;
the upper end of the second vibration reduction plate (3) is connected with the vibration absorbers (2) arranged on the first vibration reduction plate (1), the lower end of the second vibration reduction plate is uniformly provided with a plurality of vibration absorbers (2), and a second vibration reduction layer is formed; and
and the upper end of the third vibration reduction plate (4) is connected to a vibration absorber (2) arranged at the lower end of the second vibration reduction plate (3) and is connected with an external aircraft.
2. The photoelectric pod double-layer vibration damping device as claimed in claim 1, wherein: the vibration dampers of the first vibration damping layer and the vibration dampers of the second vibration damping layer are arranged in a staggered mode.
3. The photoelectric pod double-layer vibration damping device as claimed in claim 1, wherein: the first vibration damping plate (1) is cylindrical, and a plurality of pod connecting holes (6) convenient for connecting pods of various models are formed in the upper end of the first vibration damping plate.
4. The photoelectric pod double-layer damping device as claimed in claim 2 or 3, wherein: the lower edge of the first damping plate (1) is provided with a plurality of lugs (7) for mounting the damper (2).
5. The photoelectric pod double-layer vibration damping device as claimed in claim 1, wherein: the second vibration reduction plate (3) and the third vibration reduction plate (4) are disc-shaped and are uniformly provided with a plurality of vibration reducer mounting holes.
6. The photoelectric pod double-layer vibration damping device as claimed in claim 5, wherein: the outer wall of the third vibration damping plate (4) is uniformly provided with a plurality of aircraft connecting lugs (5) extending outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679966.4U CN215673347U (en) | 2021-07-23 | 2021-07-23 | Photoelectric pod double-layer vibration damping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679966.4U CN215673347U (en) | 2021-07-23 | 2021-07-23 | Photoelectric pod double-layer vibration damping device |
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| CN215673347U true CN215673347U (en) | 2022-01-28 |
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| CN202121679966.4U Active CN215673347U (en) | 2021-07-23 | 2021-07-23 | Photoelectric pod double-layer vibration damping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104896A (en) * | 2023-01-17 | 2023-05-12 | 中船重工安谱（湖北）仪器有限公司 | Suspension type two-stage vibration damper and use method thereof |
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2021
- 2021-07-23 CN CN202121679966.4U patent/CN215673347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104896A (en) * | 2023-01-17 | 2023-05-12 | 中船重工安谱（湖北）仪器有限公司 | Suspension type two-stage vibration damper and use method thereof |
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