JP2022007832A - Vibration control for rotary sphere frame for unmanned aircraft and shock absorbing device second version - Google Patents

Abstract

To solve such the problem that there is no device that strikes a balance between vibration control and shock absorbing for existing unmanned aircrafts with a rotary sphere frame (except for device produced by this inventor).SOLUTION: There is provided a device that strikes a balance between vibration control and shock absorbing for an unmanned aircraft with a rotary sphere frame. Installing the vibration control and shock absorbing device to an unmanned aircraft with a rotary sphere frame can strikes a balance between vibration control and shock absorbing for an unmanned aircraft with a rotary sphere frame.SELECTED DRAWING: Figure 10

Description

The present invention relates to an unmanned aerial vehicle and a vibration-preventing and shock-cushioning device for a rotating spherical frame installed around the unmanned aerial vehicle.

The rotating sphere frame has a gimbal structure to which a gyroscope is applied. Therefore, as shown in FIG. 1, the rotating sphere frame rotates in all directions while keeping the internal unmanned aerial vehicle horizontal. This allows an unmanned aerial vehicle with a rotating sphere frame to safely approach or adhere to an object and perform various infrastructure inspections with the onboard camera.

Japanese Patent Application No. 2016-190318 of the same inventor and patent applicant as the inventor and patent applicant. This patent application complements the scope of claims of Japanese Patent Application No. 2016-190318. Related site of the inventor and patent applicant PAUI "https://paui.jp/"

As shown in Fig. 2, the gimbal connection of the rotating sphere frame manufactured by the patent applicant about 6 years ago is an unmanned aerial vehicle and a rotating sphere because there is a gap between the hole and the screw just by passing the screw through the hole of the gimbal. The frame vibrated.
Therefore, the gimbal connection of the rotating sphere frame manufactured by the applicant for this patent about five and a half years ago succeeded in preventing vibration by adhering a screw to a fixed bearing as shown in FIG.
However, since the screws were adhered to the bearings, there was no play in the gimbal and the impact could not be cushioned, and when the rotating sphere frame hit a wall or the like strongly, the rotating sphere frame was partially damaged.
Therefore, it is an object of the present invention to realize both vibration prevention and shock cushioning of an unmanned aerial vehicle and a rotating sphere frame.

In order to solve the above problems, in the first invention, vibration is prevented by passing a screw having almost no gap through the fixed bearing of FIG. 4, and as shown in FIGS. 5 and 6, the screw is the shaft of the bearing. It is a device that cushions the impact by moving in the direction (left and right in FIG. 5).

Further, in the second invention, vibration is prevented by passing a screw having almost no gap through a part having a function similar to that of a fixed bearing, and as shown in FIGS. 8 and 9, the screw is in the axial direction of the part (FIG. 7). It is a device that cushions the impact by moving in the direction connecting 1 and 3 of.
The parts having the same function as the fixed bearing refer to 1, 2, 3 and 4 in FIG. When the right side of FIG. 7 is turned over and put on the left side, 1 and 2 and 3 and 4 become holes. Since the diameter of the hole can be precisely determined with a 3D printer or the like, vibration is prevented by passing a screw with almost no gap, and the screw connects 1 and 3 of the part in the axial direction of the part (connecting 1 and 3 in FIG. 7). The impact can be buffered by moving in the direction).

The vibration prevention and impact shock absorber according to claim 1 is a device that integrates a bearing fixing part, a screw movable part, a bearing, and a screw, for example, a device covered with FIG. 6 in FIG. 5 (excluding a carbon rod). be.

The vibration prevention and impact shock absorber according to claim 2, for example, the one covered with FIG. 9 in FIG. 8 (excluding the carbon rod), has a part having the same function as a fixed bearing, a screw movable part, and a screw. It is a device.

According to the first invention or the second invention, it is possible to realize both vibration prevention and shock cushioning of an unmanned aerial vehicle and a rotating spherical frame by attaching a vibration prevention and shock shock absorber.

It is a perspective view which shows one Embodiment of this invention. It is a partially enlarged view which shows the prior art. It is a partially enlarged view which shows the prior art. It is a partially enlarged view which shows one Embodiment of this invention. It is a partially enlarged view which shows one Embodiment of this invention. It is a partially enlarged view which shows one Embodiment of this invention. It is a partially enlarged view which shows one Embodiment of this invention. It is a partially enlarged view which shows one Embodiment of this invention. It is a partially enlarged view which shows one Embodiment of this invention. It is a perspective view which shows one Embodiment of this invention.

An embodiment of the present invention is shown in FIG.
By installing anti-vibration and shock-cushioning devices at six locations in the rotating sphere frame, it is possible to achieve both vibration prevention and shock-cushioning for unmanned aerial vehicles and rotating sphere frames.
As a result, even if the rotating sphere frame strongly hits a wall or the like, the impact is considerably reduced and the rotating sphere frame is not easily damaged.
An unmanned aerial vehicle is an airplane, a rotary wing aircraft, etc. that cannot be boarded by a person and can be flown by remote control or autopilot (excluding ultra-lightweight aircraft).
The rotating spherical frame for an unmanned aerial vehicle has a gimbal structure to which a gyroscope is applied, and the spherical frame is a structure that rotates in all directions while keeping the unmanned aerial vehicle inside horizontal.

Anti-vibration and shock shock absorbers for unmanned aerial vehicles and rotating sphere frames enhance the safety of unmanned aerial vehicles with rotating sphere frames. Therefore, it is highly possible that it will be widely used for infrastructure inspections such as bridges and tunnels.
In the new robot strategy announced in January 2015, the government will inspect and repair 20% of domestic important infrastructure and aging infrastructure using sensors, robots, non-destructive inspection technology, etc. by around 2020. It is clearly stated that the efficiency will be improved. An unmanned aerial vehicle with a rotating sphere frame corresponds to a robot.

Claims (2)

A vibration-preventing and shock-absorbing device for a rotating spherical frame for unmanned aerial vehicles, which has a structure that prevents vibration by passing a screw with almost no gap through a fixed bearing and allows the screw to move in the axial direction of the bearing. A rotating sphere frame for unmanned aerial vehicles that has a structure that prevents vibration by passing a screw with almost no gap through a part that has the same function as a fixed bearing and allows the screw to move in the axial direction of the part. Vibration prevention and shock shock absorber.

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