CN217918454U - Pod damping device - Google Patents
Pod damping device Download PDFInfo
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- CN217918454U CN217918454U CN202222112887.6U CN202222112887U CN217918454U CN 217918454 U CN217918454 U CN 217918454U CN 202222112887 U CN202222112887 U CN 202222112887U CN 217918454 U CN217918454 U CN 217918454U
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- damping
- pod
- damping device
- assembly
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Abstract
The utility model discloses a nacelle damping device, include: a base; the first bracket is arranged on the base; the second bracket is arranged on the first bracket; the third support is arranged on the second support and used for mounting the holder assembly; the first damping assembly is connected with the first bracket and the second bracket; the second damping assembly is connected with the second bracket and the third bracket; the device can improve the filtering performance for different types of vibration.
Description
Technical Field
The utility model relates to a flight detection technical field especially relates to a nacelle damping device.
Background
A nacelle is a device suspended from a fuselage or wing for carrying photovoltaic loads. During the flight of the airplane, vibration generated by an engine and large-amplitude flight attitude conversion in the air affect the stability of the optical axis of the photoelectric load of the nacelle, so that the pointing accuracy and the imaging quality of the photoelectric load are deteriorated. Generally, the aircraft pod is provided with a shock absorber to ensure the stability of the optical axis of the photoelectric load of the pod.
In the existing shock absorber, a plurality of shock absorbing balls are generally arranged between a nacelle and a detection assembly to filter high-frequency shock transmitted by a machine body to the detection assembly, and the scheme only has a good filtering effect on the high-frequency shock and has a poor filtering effect on other types of shock including low-frequency shock.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a nacelle damping device can improve the filtering capability to the vibrations of different grade type.
The utility model discloses a nacelle damping device, include: a base; the first bracket is arranged on the base; the second bracket is arranged on the first bracket; the third support is arranged on the second support and used for mounting the holder assembly; the first damping assembly is connected with the first bracket and the second bracket; and the second shock absorption assembly is connected with the second bracket and the third bracket.
According to the utility model discloses a some embodiments, be formed with accommodation space between base and the first support, second support and third support are located accommodation space in the middle of, the coaxial setting of first support, second support and third support.
According to the utility model discloses a some embodiments, first damper has the multiunit, and the first damper of multiunit is along the circumference equipartition of second support.
According to the utility model discloses a some embodiments are provided with first mounting bracket on the first support, are provided with the second mounting bracket on the second support, and first mounting bracket and second mounting bracket are connected to first damper, and the second mounting bracket is located first mounting bracket.
According to some embodiments of the utility model, the second support center undercut forms the depressed part, and second damper connects depressed part and third support, and the third support is located the depressed part top.
According to the utility model discloses a some embodiments have seted up fretwork portion on the depressed part, are provided with the extension on the third support, and the extension passes fretwork portion downwards, and cloud platform subassembly is connected to the extension.
According to some embodiments of the utility model, the extension has a plurality ofly, and a plurality of extensions are along the circumference equipartition of third support.
According to some embodiments of the invention, the pod damping device further comprises a damping spring disposed on the extension member, the damping spring extending outwardly to connect the first support.
According to some embodiments of the utility model, the second damper assembly includes: the fourth damping piece is connected with the third support and the concave part and is coaxial with the third support; and the plurality of third damping pieces are connected with the third support and the concave part, and are uniformly distributed along the circumferential direction of the third support.
According to some embodiments of the invention, the axis of the third damping member and the axis of the fourth damping member are at an acute angle.
By applying the nacelle damping device, the base can be fixed on a nacelle plate of an aircraft in the using process, the detection component is arranged on the holder component, the holder component is arranged on the third support, and the high-frequency vibration of the aircraft body is filtered by the first damping component in the flying process, so that the influence of the high-frequency vibration on the holder component and the detection component is greatly reduced; and the low frequency vibrations after first damper filters can be filtered by second damper, has effectively reduced the influence of low frequency vibrations to surveying the subassembly, through the mode of two-stage filtration, can effectively filter low frequency vibrations and high frequency vibrations, improves the filtering quality to the vibrations of different grade type.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an isometric view of a pod assembly in an embodiment of the present invention;
FIG. 2 is an isometric view of another perspective of a pod assembly in an embodiment of the invention;
FIG. 3 is an isometric view of a portion of a pod shock absorbing device in an embodiment of the present invention;
FIG. 4 is an isometric view of a portion of an embodiment of the present invention, including a third bracket;
FIG. 5 is a bottom view of the portion of FIG. 4 including the third bracket;
FIG. 6 is an isometric view of a second bracket according to an embodiment of the present invention;
FIG. 7 is a top view of a pod damping device in an embodiment of the present invention;
FIG. 8 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 7;
FIG. 9 is a cross-sectional view taken along line D-D of FIG. 7;
the above figures contain the following reference numerals.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, more than, etc. are understood as not including the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 9, the present embodiment provides a pod assembly, including a damping device, that is, the pod damping device in fig. 1 to 9, further including a pan-tilt assembly 300 and a detection assembly 400, wherein the pod damping device is installed on a fuselage, the pan-tilt assembly 300 is hoisted on the pod damping device, the detection assembly 400 is disposed on the pan-tilt, and during the flight of an aircraft, the pod damping device can filter the vibration transmitted to the detection assembly 400 by the fuselage, so as to ensure the stable operation of the detection assembly 400.
Wherein, damping device includes: a base 100; a first bracket 200 disposed on the base 100; a second bracket 220 for mounting the pan/tilt head assembly 300; a first damper assembly connecting the first bracket 200 and the second bracket 220; the first shock absorbing assembly includes: a first damper 203 connecting the first bracket 200 and the second bracket 220; and the two second shock absorbing members 204 are respectively arranged at two sides of the first shock absorbing member 203, and an included angle between the axis of the second shock absorbing member 204 and the axis of the first shock absorbing member 203 is an acute angle.
By applying the damping device, the base 100 can be fixed on a pod plate of an aircraft in the using process, at the moment, the detection assembly 400 is installed on the pan-tilt assembly 300, the pan-tilt assembly 300 is installed on the second bracket 220, and in the flying process, the high-frequency vibration of the fuselage is filtered by the first damping piece 203 and the second damping piece 204, so that the influence on the pan-tilt assembly 300 and the detection assembly 400 is greatly reduced; because the axis of the second shock absorber 204 and the axis of the first shock absorber 203 form an acute angle, when the high-frequency vibration with a smaller angle between the direction and the axis of the second shock absorber 204 occurs, the second shock absorber 204 can better eliminate the high-frequency vibration in the direction relative to the first shock absorber 203, and the better improvement is the filtering effect of the high-frequency vibration in different directions.
As shown in fig. 8, the first and second shock absorbing members 203 and 204 are preferably hydraulic shock absorbing balloons filled with oil for shock absorption, which are capable of better absorbing high-frequency shock than rubber shock absorbers; the middle of the balloon is provided with a support hole for accommodating a support column, the support column can ensure the stability of the balloon relative to the positions of the first support 200 and the second support 220, and the axial direction of the support hole is the direction of the hydraulic damping balloon.
It can be understood that the smaller the included angle between the direction of the high-frequency vibration and the direction of the hydraulic damping saccule is, the better the vibration absorption effect is; therefore, the first shock absorbing members 203 and the second shock absorbing members 204 can better absorb high-frequency shock with smaller axial included angle, and compared with the scheme that a plurality of parallel first shock absorbing members 203 are arranged in the prior art, the filtering effect of the high-frequency shock in different directions can be improved.
In practical use, the included angle between the axial direction of the second damping member 204 and the axial direction of the first damping member 203 is preferably 45 degrees in order to reduce the number of hydraulic damping balls and achieve the best damping effect because the included angle between the axial direction of the second damping member 204 and the axial direction of the first damping member 203 is larger and even less in vertical high-frequency vibration.
Specifically, the two second shock absorbing members 204 are respectively disposed on two sides of the first shock absorbing member 203, so that the filtering effect of high-frequency shocks in different directions can be further improved.
As shown in fig. 1, the base 100 is provided with a mounting portion, and a fastening member is provided on the mounting portion for detachably fixing with a lifting plate of the body.
As shown in fig. 3 and 8, the axes of the two second shock absorbing members 204 and the axis of the first shock absorbing member 203 both have the same included angle; specifically, the axes of the two second shock absorbing members 204 and the axis of the first shock absorbing member 203 intersect at a point, the included angles between the axes of the two second shock absorbing members 204 and the axis of the first shock absorbing member 203 are equal, and the included angle between the axis of the second shock absorbing member 204 and the axis of the first shock absorbing member 203 is downward; that is, the two second shock absorbing members 204 assume a state of bilateral symmetry with respect to the axis of the first shock absorbing member 203.
As shown in fig. 3 and 6, the first damping assemblies have multiple groups, and the multiple groups of the first damping assemblies are uniformly distributed along the axial direction of the second bracket 220; specifically, a plurality of second mounting brackets 221 are distributed on the second support 220 along the circumferential direction, a plurality of first mounting brackets 202 are distributed on the first support 200 along the circumferential direction, a group of first shock absorption assemblies are arranged between each second mounting bracket 221 and the first mounting bracket 202, in each group of first shock absorption assemblies, the first shock absorption pieces 203 are vertically arranged from top to bottom, and the two second shock absorption pieces 204 are symmetrically arranged along the direction of the vertical offset direction relative to the axis of the first shock absorption pieces 203.
Specifically, the axis of the first shock absorbing member 203 and the axes of the two second shock absorbing members 204 are coplanar, and the plane in which the axis of the first shock absorbing member 203 and the axes of the two second shock absorbing members 204 lie is parallel to the radial direction of the second bracket 220.
As shown in fig. 3 to 9, the nacelle damping device of the present embodiment includes: a base 100; a first bracket 200 disposed on the base 100; a second bracket 220 disposed on the first bracket 200; a third bracket 230 disposed on the second bracket 220, the third bracket 230 being used for mounting the pan/tilt head assembly 300; a first damper assembly connecting the first bracket 200 and the second bracket 220; and a second damper assembly connecting the second bracket 220 and the third bracket 230.
During the use process, the base 100 can be fixed on a pod version of an aircraft, at this time, the detection assembly 400 is installed on the pan-tilt assembly 300, the pan-tilt assembly 300 is installed on the third support 230, and during the flight process, the high-frequency vibration of the aircraft body is filtered by the first damping assembly, so that the influence of the high-frequency vibration on the pan-tilt assembly 300 and the detection assembly 400 is greatly reduced; and the low frequency vibrations after first damper filters can be filtered by second damper, has effectively reduced the influence of low frequency vibrations to surveying subassembly 400, through the mode of two-stage filtration, can effectively filter low frequency vibrations and high frequency vibrations, improves the filtering quality to the vibrations of different grade type.
As shown in fig. 9, an accommodating space is formed between the base 100 and the second bracket 220, and the second bracket 220 is located in the accommodating space; specifically, in the accommodating space, the first mounting frame 202 is mounted above the first support 200, the first damping component is mounted above the first mounting frame 202, and the second mounting frame 221 is mounted above the first damping component, so that the first damping member 203 and the second damping member 204 bear the gravity of the detection component 400 and the pan and tilt head component 300 in a compression manner; the design can ensure that the first damping assembly for eliminating high-frequency vibration is closer to a seismic source on the machine body, the damping effect is improved, and the space occupation of the damping device is reduced.
Specifically, the pod damping device further includes: a third bracket 230 for connecting the pan/tilt head assembly 300; a second damper assembly connecting the third bracket 230 and the second bracket 220; the second damping component is used for filtering other vibrations including low-frequency vibrations, that is, vibrations are transmitted to the first damping component through the base 100 and the first bracket 200, high-frequency parts of the vibrations are filtered by the first damping component, then the vibrations are transmitted to the second damping component through the second bracket 220, and the vibrations are filtered to other parts including low-frequency vibrations by the second damping component; through the mode that two-stage damper assembly establishes ties, can effectively deal with the vibrations of different grade type.
Wherein, the second damper assembly includes: a fourth shock-absorbing member 232 connecting the second bracket 220 and the third bracket 230, the fourth shock-absorbing member 232, the second bracket 220 and the third bracket 230 being coaxial; a plurality of third dampers 231 connecting the second bracket 220 and the third bracket 230, the plurality of third dampers 231 being uniformly distributed along the circumferential direction of the second bracket 220; among them, for better filtering low frequency vibration, the third and fourth vibration absorbing members 231 and 232 are preferably rubber vibration absorbers; compared with a hydraulic damper, the rubber damper can better filter low-frequency vibration.
As shown in fig. 5 and 6, the center of the second bracket 220 is recessed downward to form a recess, the second shock absorbing assembly connects the recess and the third bracket 230, and the third bracket 230 is located above the recess; that is, by the design that the middle concave part of the second bracket 220 supports the third damping component and the third bracket 230, the two-stage damping component, the second bracket 220 and the third bracket 230 can be all placed in the accommodating space between the first bracket 200 and the base 100, so that the center of gravity of the two-stage damping part of the damping device can be ensured to be closer to the machine body while the space is fully utilized, and the damping effect is effectively improved; in addition, the third and fourth shock absorbing members 231 and 232 also bear the weight of the pan and tilt head assembly 300 and the detection assembly 400 in a pressurized manner.
Specifically, the axial center of the third damper 231 coincides with the axial center of the second bracket 220, that is, the third damper 231 is installed at the center of the recess, and the third bracket 230 is installed above the third damper 231 and the fourth damper 232; the axis of third bumper shock attenuation piece 231 and the axis of fourth bumper shock attenuation piece 232 contained angle be the acute angle and the axis of a plurality of fourth bumper shock attenuation pieces 232 intersects in a point with the axis of third bumper shock attenuation piece 231, similar with the arrangement mode of first bumper shock attenuation piece 203 and second bumper shock attenuation piece 204 among the first damper assembly, the arrangement mode of third bumper shock attenuation piece 231 and fourth bumper shock attenuation piece 232 can improve the filter effect to the low frequency vibrations of equidirectional, can guarantee the centering performance of third support 230 again simultaneously, in time centering behind the assurance third support 230 skew center.
As shown in fig. 9, an accommodating space is formed between the base 100 and the first bracket 200, the second bracket 220 and the third bracket 230 are located in the accommodating space, and the first bracket 200, the second bracket 220 and the third bracket 230 are coaxially arranged; the axes of the first shock absorbing assembly, namely the axes of the first bracket 200, the second bracket 220 and the third bracket 230, are uniformly distributed along the circumference, namely the axes of the fourth shock absorbing members 232 are uniformly distributed along the circumference.
As shown in fig. 9, in order to facilitate connection and installation of the pan/tilt head assembly 300, a hollow portion 224 is formed on the recessed portion, an extension member 233 is disposed on the third bracket 230, the extension member 233 downwardly penetrates through the hollow portion 224, and the extension member 233 is connected to the pan/tilt head assembly 300.
Specifically, there are a plurality of the extension members 233, and the plurality of extension members 233 are uniformly distributed along the circumferential direction of the third bracket 230; wherein, a plurality of extension 233 all are fixed with cloud platform subassembly 300, can effectively guarantee the stability of cloud platform subassembly 300 installation.
In order to reduce the radial swing of the pan/tilt head, the damping device further includes a damping spring 234 disposed on the extension member 233, wherein the damping spring 234 extends outward to connect the first bracket 200; as shown in fig. 9, the damping spring 234 is an extension spring, an inward end of the damping spring 234 is connected to the extension member 233, and an outward end of the damping spring 234 is connected to the first bracket 200; when the pan/tilt head swings along the radial direction of the first support 200, the damping spring 234 can generate a force opposite to the swinging direction, so as to drive the pan/tilt head to return to the center in time and automatically correct the offset; specifically, four extension members 233 are provided, and one damping spring 234 is provided on each of the four extension members 233, and the four damping springs 234 are connected to the first bracket 200 at their outward ends.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A pod damping device, comprising:
a base (100);
a first bracket (200) provided on the base (100);
a second bracket (220) disposed on the first bracket (200);
a third bracket (230) arranged on the second bracket (220), wherein the third bracket (230) is used for installing a tripod head component (300);
a first shock absorbing assembly connecting the first bracket (200) and the second bracket (220);
a second damper assembly connecting the second bracket (220) and the third bracket (230).
2. The pod damping device according to claim 1, characterized in that a receiving space is formed between the base (100) and the first bracket (200), the second bracket (220) and the third bracket (230) are located in the receiving space, and the first bracket (200), the second bracket (220) and the third bracket (230) are coaxially arranged.
3. The pod damping device according to claim 2, characterized in that there are a plurality of sets of the first damping assemblies, which are evenly distributed along the circumference of the second bracket (220).
4. The pod damping device according to claim 2, characterized in that a first mounting (202) is provided on the first bracket (200), a second mounting (221) is provided on the second bracket (220), the first damping assembly connecting the first mounting (202) and the second mounting (221), the second mounting (221) being located on the first mounting (202).
5. The pod damping device according to claim 2, wherein the second bracket (220) is centrally recessed downward forming a recess, the second damping assembly connecting the recess and the third bracket (230), the third bracket (230) being located above the recess.
6. The pod damping device according to claim 5, characterized in that a hollow (224) is provided on the recess, an extension (233) is provided on the third bracket (230), the extension (233) passes through the hollow (224) downwards, and the extension (233) is connected to the head assembly (300).
7. The pod damping device according to claim 6, characterized in that the extension member (233) is plural, and the plural extension members (233) are evenly distributed in a circumferential direction of the third bracket (230).
8. The pod damping device according to claim 6, further comprising a damping spring (234) provided on the extension member (233), the damping spring (234) extending outward to connect the first bracket (200).
9. The pod damping device of claim 5, wherein the second damping assembly comprises:
a fourth damper (232) connecting the third bracket (230) and the recess, the fourth damper (232) and the third bracket (230) being coaxial;
and a plurality of third dampers (231) connecting the third bracket (230) and the recess, the plurality of third dampers (231) being uniformly distributed along a circumferential direction of the third bracket (230).
10. The pod damping device according to claim 9, characterized in that the axis of the third damping member (231) is at an acute angle to the axis of the fourth damping member (232).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222112887.6U CN217918454U (en) | 2022-08-11 | 2022-08-11 | Pod damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222112887.6U CN217918454U (en) | 2022-08-11 | 2022-08-11 | Pod damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217918454U true CN217918454U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222112887.6U Active CN217918454U (en) | 2022-08-11 | 2022-08-11 | Pod damping device |
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| CN (1) | CN217918454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466791A (en) * | 2019-09-20 | 2019-11-19 | 珠海紫燕无人飞行器有限公司 | Gondola damping |
-
2022
- 2022-08-11 CN CN202222112887.6U patent/CN217918454U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466791A (en) * | 2019-09-20 | 2019-11-19 | 珠海紫燕无人飞行器有限公司 | Gondola damping |
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