Airborne passive damping device of unmanned aerial vehicle

Abstract

The utility model relates to an unmanned aerial vehicle airborne passive damping device which comprises a pod supporting plate, a pod hanging plate, an electric control piece bottom plate, an air damping shock absorber, a supporting piece and a mounting connecting piece, and the pod supporting plate is connected with the electric control piece bottom plate through the supporting piece; the pod supporting plate is connected with the pod hanging plate through the air damping shock absorber, and the pod hanging plate is arranged between the pod supporting plate and the electric control part bottom plate. A plurality of mounting connecting pieces are arranged on the electric control bottom plate; circular holes are formed in the center of the pod supporting plate and the center of the pod hanging plate respectively and used for containing a pod. The device is simple in structure and convenient to install and operate; the weight of the test equipment is reduced to the maximum extent, and the problem of small load of the test platform is ensured; the structure is reasonably planned, so that the test platform is small in adaptive space; and the rubber gasket, the cylindrical hole, the strip-shaped hole and other structures are arranged, so that the safety and stability of the test platform are improved.

Description

Technical Field

[0001] The utility model relates to a test platform, in particular to an airborne passive shock absorber for unmanned aerial vehicles (UAVs). Background Art

[0002] With the increase of the distance of air-to-ground laser communication and the gradual improvement of accuracy requirements, the dynamic characteristics requirements of the terminal structure for the communication system are also getting higher and higher. Among the many factors affecting the tracking accuracy of the airborne laser communication link, the control error caused by the vibration of the airborne platform accounts for a large proportion. Therefore, it is very important to reduce the vibration of the airborne platform for the establishment of the optical communication link. Since the storage load space and load capacity are limited after installing the pod on the UAV platform, the common commercial vibration test systems on the market are difficult to meet the test requirements of UAV vibration. Summary of the Invention

[0003] The purpose of the utility model is to overcome the above deficiencies and provide an airborne passive shock absorber for UAVs, which can enable the vibration test device to be conveniently mounted on the spherical pod, and at the same time ensure that the test device can be fixed on the upper part of the device under test, which helps to improve the accuracy of vibration test.

[0004] According to the technical solution provided by the utility model, an airborne passive shock absorber for UAVs includes a pod support plate, a pod hanging plate, an electronic control component bottom plate, an air damping shock absorber, a support member and a mounting connecting member. The pod support plate is connected to the electronic control component bottom plate through the support member; the pod support plate is connected to the pod hanging plate through the air damping shock absorber, and the pod hanging plate is arranged between the pod support plate and the electronic control component bottom plate; a plurality of mounting connecting members are arranged on the electronic control component bottom plate; circular holes are respectively arranged at the centers of the pod support plate and the pod hanging plate for accommodating the pod.

[0005] As a further improvement of the utility model, a plurality of cylindrical holes are arranged on the electronic control component bottom plate, and a plurality of strip-shaped holes are arranged around the cylindrical holes. Both the cylindrical holes and the strip-shaped holes are used for fixing and accommodating the electronic control components.

[0006] As a further improvement of the utility model, there are four mounting connecting members, which are symmetrically arranged at the four ends of the electronic control component bottom plate respectively.

[0007] As a further improvement of the utility model, the mounting connecting member includes a connecting column, a semi-ring and a threaded pin. The connecting column is fixed on the electronic control component bottom plate, the semi-ring is connected to the connecting column through a rotating shaft, a threaded hole is arranged at the end of the semi-ring, and the threaded pin is arranged in the threaded hole; another threaded hole adapted to the threaded pin is arranged on the connecting column, and the end of the threaded pin can be screwed into the threaded hole to fix the semi-ring.

[0008] As a further improvement of the present utility model, the pod support plate is a rectangular plate, on which multiple groups of fixing holes are symmetrically arranged around the circular hole for fixing the air damping shock absorber on the pod support plate.

[0009] As a further improvement of the present utility model, the connecting line between the holes of each group of fixing holes is not parallel to the outer straight edge of the pod support plate to achieve the purpose of reducing the occupied space.

[0010] As a further improvement of the present utility model, the pod hanging plate is a rectangular plate, and cut edges and rounded corners are respectively arranged at its four corners to reduce its occupied area and prevent spatial collision with other devices.

[0011] As a further improvement of the present utility model, grooves are respectively arranged on both sides of the support member for weight reduction.

[0012] As a further improvement of the present utility model, the support member is made of aluminum material.

[0013] As a further improvement of the present utility model, a rubber gasket is arranged on the air damping shock absorber to prevent stress collision with the pod hanging plate.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The structure is simple, and the installation and operation are convenient.

[0016] 2. The weight of the test equipment is reduced to the maximum extent to ensure adaptation to the problem of small load capacity of the test platform.

[0017] 3. The structure is reasonably planned to make the test platform adapt to the characteristics of small space.

[0018] 4. The structural settings such as rubber gaskets, cylindrical holes and strip holes increase the safety and stability of the test platform. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present utility model.

[0020] Figure 2 is the schematic diagram of the air damping shock absorber of the present utility model.

[0021] Figure 3 is the structural schematic diagram of the pod support plate of the present utility model.

[0022] Figure 4 is the structural schematic diagram of the pod hanging plate of the present utility model.

[0023] Figure 5 is the structural schematic diagram of the mounting connecting member of the present utility model.

[0024] Figure 6 It is a schematic structural diagram of the electric control component base plate of the present utility model.

[0025] Figure 7 It is a schematic structural diagram of the support member of the present utility model.

[0026] Explanation of reference numerals: 1, pod support plate; 2, pod hanging plate; 3, electric control component base plate; 4, air damping shock absorber; 5, support member; 6, mounting connecting member; 11, fixing hole; 21, trimming edge; 22, rounded corner; 31, cylindrical hole; 32, strip-shaped hole; 41, rubber gasket; 51, groove; 61, connecting column; 62, semi-ring; 63, threaded pin. Specific embodiments

[0027] The present utility model will be further described below in conjunction with the embodiments in the drawings:

[0028] As shown in the figure, an airborne passive shock absorption device for a drone is applied at the pod installation location at the air end and is used to connect the drone and the pod. The air end is the end in the air in a general air-to-ground project. The device includes a pod support plate 1, a pod hanging plate 2, an electric control component base plate 3, an air damping shock absorber 4, a support member 5, and a mounting connecting member 6. The pod support plate 1 is connected to the electric control component base plate 3 through the support member 5; the pod support plate 1 is connected to the pod hanging plate 2 through the air damping shock absorber 4, and the pod hanging plate 2 is arranged between the pod support plate 1 and the electric control component base plate 3; a plurality of mounting connecting members 6 are arranged on the electric control component base plate 3; circular holes are respectively arranged at the centers of the pod support plate 1 and the pod hanging plate 2 for accommodating the pod.

[0029] As Figure 6 shown, a plurality of cylindrical holes 31 are arranged on the electric control component base plate 3, and a plurality of strip-shaped holes 32 are arranged around the cylindrical holes 31. Both the cylindrical holes 31 and the strip-shaped holes 32 are used for fixing and accommodating the electric control components. The electric control component base plate 3 is mainly provided with vibration test products for testing the influence value of the drone flight vibration on the pod.

[0030] As Figure 5 shown, there are four mounting connecting members 6, which are symmetrically arranged at the four ends of the electric control component base plate 3 respectively; the mounting connecting member 6 includes a connecting column 61, a semi-ring 62, and a threaded pin 63. The connecting column 61 is fixed on the electric control component base plate 3, the semi-ring 62 is connected to the connecting column 61 through a rotating shaft, a threaded hole is arranged at the end of the semi-ring 62, and the threaded pin 63 is arranged in the threaded hole; another threaded hole adapted to the threaded pin 63 is arranged on the connecting column 61, and the end of the threaded pin 63 can be screwed into the threaded hole to fix the semi-ring 62. The cooperation between the semi-ring 62 and the threaded pin 63 can suspend the entire test platform on the drone.

[0031] The pod support plate 1 is a rectangular plate, on which multiple groups of fixing holes 11 are symmetrically arranged, all around the circular hole, for fixing the air damping shock absorber 4 on the pod support plate 1; the connecting lines between the holes of each group of fixing holes 11 are arranged non-parallel to the outer straight edge of the pod support plate 1, so as to achieve the purpose of reducing the occupied space; when the connecting lines between the holes are arranged in parallel, when the area of the pod support plate 1 is reduced as much as possible, the fixing holes 11 may conflict with the positions of the circular hole or the support member 5.

[0032] The pod hanging plate 2 is a rectangular plate, and cut edges 21 and rounded corners 22 are respectively arranged at its four corners, for reducing its occupied area and preventing spatial collision with other devices.

[0033] Grooves 51 are respectively arranged on both sides of the support member 5 for weight reduction; the support member 5 is made of aluminum material to reduce its weight and prevent bringing an extra burden to the drone.

[0034] A rubber gasket 41 is arranged on the air damping shock absorber 4 to prevent stress collision with the pod hanging plate 2.

Claims

1. A passive shock absorbing device onboard an unmanned aerial vehicle, comprising a pod support plate (1), a pod hanging plate (2), an electric control bottom plate (3), an air damping shock absorber (4), a supporting member (5) and a mounting connector (6), characterized in that: The pod support plate (1) is connected to the electric control unit base plate (3) via a support member (5); the pod support plate (1) is connected to the pod hanging plate (2) via the air damping shock absorber (4), and the pod hanging plate (2) is arranged between the pod support plate (1) and the electric control unit base plate (3); a plurality of mounting connectors (6) are arranged on the electric control unit base plate (3); circular holes are respectively arranged at the centers of the pod support plate (1) and the pod hanging plate (2) for accommodating the pod.

2. The passive vibration reduction device onboard an unmanned aerial vehicle according to claim 1, characterized in that: The electrical control component bottom plate (3) is provided with a plurality of columnar holes (31), and a plurality of strip-shaped holes (32) are provided around the columnar holes (31). The columnar holes (31) and the strip-shaped holes (32) are both used for fixing and storing the electrical control components.

3. The passive vibration reduction device onboard an unmanned aerial vehicle according to claim 1, characterized in that: There are four mounting connectors (6), which are symmetrically arranged at the four ends of the electrical control component bottom plate (3).

4. The passive vibration reduction device onboard an unmanned aerial vehicle according to claim 3, characterized in that: The mounting connector (6) comprises a connecting column (61), a half ring (62) and a threaded pin (63); the connecting column (61) is fixed on the electrical control component base plate (3); the half ring (62) is connected to the connecting column (61) via a rotating shaft; a threaded hole is provided at the end of the half ring (62), and the threaded pin (63) is arranged in the threaded hole; another screw hole adapted to the threaded pin (63) is provided on the connecting column (61), and the end of the threaded pin (63) can be screwed into the screw hole to fix the half ring (62).

5. The passive vibration reduction device onboard an unmanned aerial vehicle according to claim 1, characterized in that: The pod support plate (1) is a rectangular plate on which a plurality of groups of fixing holes (11) are symmetrically arranged, all arranged around the circular hole, and used for fixing the air damping shock absorber (4) on the pod support plate (1).

6. The passive vibration reduction device onboard an unmanned aerial vehicle according to claim 5, characterized in that: The connecting line between the holes of each group of fixing holes (11) is arranged non-parallel to the outer straight edge of the pod support plate (1), so as to achieve the purpose of reducing the occupied space.

7. The passive vibration reduction device onboard an unmanned aerial vehicle according to claim 1, characterized in that: The pod hanging plate (2) is a rectangular plate, and is provided with cut edges (21) and rounded corners (22) at its four corners, respectively, so as to reduce its occupied area and prevent spatial collision with other devices.

8. The passive vibration reduction device onboard an unmanned aerial vehicle according to claim 1, characterized in that: Grooves (51) are respectively provided on both sides of the support member (5) for reducing weight.

9. The passive vibration reduction device onboard an unmanned aerial vehicle according to claim 8, characterized in that: The support member (5) is made of aluminum material.

10. The passive vibration reduction device onboard a drone as claimed in claim 1, characterized in that: The air damping shock absorber (4) is provided with a rubber gasket (41) for preventing stress collision with the pod hanging plate (2).

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