KR100472560B1 - Thrust Vectoring System of Airship - Google Patents

Abstract

The present invention is to install a thrust deflection device in the airship structure to implement the thrust deflection (vector thrust) function required for low-speed maneuverability and shortening landing and landing distance by rotating the propeller disk to generate a thrust to the thrust in the desired direction It relates to an airship thrust deflection device for obtaining.

The present invention is connected to the motor or engine, and the thrust deflector rotating unit rotates with the internal spur gear,

A thrust deflection device fixing part connected to the thrust deflection device rotating part and a bearing and in which a pinion gear internally connected to an internal spur gear is connected to a servo motor through a shaft and fixed to an airship shell;

It is characterized in that the thrust deflector is connected to the rotating part for the position sensor and the motion sensor for positioning position sensor to inform the direction of the thrust.

Description

Thrust Deflection System for Airships {Thrust Vectoring System of Airship}

The present invention is to install a thrust deflection device in the airship structure to implement the thrust deflection (vector thrust) function required for low-speed maneuverability and shortening landing and landing distance by rotating the propeller disk to generate a thrust to the thrust in the desired direction It relates to an airship thrust deflection device for obtaining.

Airships can be operated at relatively low speeds or at rest because they can be floated by buoyancy rather than dynamic lift compared to standard aircraft.

However, in low-speed flight, the attitude control effect using the control surface of the airship has a weak disadvantage.

Therefore, the thrust deflection (vector thrust) function is required to reduce the take-off and landing distance and attitude control by increasing the airship ascent and descent speed.

In particular, shortening the take-off and landing distance of the airship is a very important problem in the operation of the airship.

In general, when the thrust deflection function is used, the takeoff distance can be reduced to about 1/5, and the landing distance can be reduced to about 2/5, so most of the recently developed airships have a vector thrust function. As it gets bigger, it is a necessary skill.

There are two ways to implement vector thrust. One is to change the direction of the propeller disk face like the tilt rotor, and the other is to set the vector thrust by installing vanes in the back of the propeller or by changing the nozzle direction of the engine. How to get.

Conventional airship direction control system is disclosed in the Patent Application Publication No. 2000-0067382 (published on November 15, 2000) filed by the applicant of the present invention relates to a system for turning the direction of the airship in the stratosphere for long-term flight The pitch of the propeller was periodically changed to generate a turning moment by variable pitch angle control.

International Patent Application Publication No. 1996-7003757 (published Aug. 31, 1996) also includes a pylon having a longitudinal axis and first and second ends, wherein the first end of the pylon is outside the airship. Extends.

The pylon is rotatable around the first end in a plane perpendicular to the longitudinal axis of the airship, and the thrust generating assembly is mounted on the second end of the pylon and rotates around the axis of rotation in a plane perpendicular to the longitudinal axis of the pylon. It is possible.

The power supply assembly is connected to the thrust generating assembly for powering, the actuation system causes the assembly to rotate about the axis of rotation, and a second actuation system is provided for rotating the pylon around the first end.

However, the structure for generating thrust was complicated and required a number of engines and functions.

The present invention is to provide a thrust in the desired direction by rotating the propeller disk to generate a thrust deflection (vector thrust) function necessary for low-speed maneuverability and shortening landing and landing distance of the airship.

The present invention allows to send the thrust deflection angle to the airship control system during the thrust deflection, to implement accurate movements and to increase the mechanical reliability with a simple structure.

The present invention is connected to a motor or engine and the thrust deflector rotating unit rotates with an internal spur gear,

A thrust deflection device fixing part connected to the thrust deflection device rotating part and a bearing and in which a pinion gear internally connected to an internal spur gear is connected to a servo motor through a shaft and fixed to an airship shell;

It is characterized in that the thrust deflector is connected to the rotating part for the position sensor and the motion sensor for positioning position sensor to inform the direction of the thrust.

In the present invention, as shown in FIG. 1, the thrust deflection device 10 is installed in a motor or an engine 12 in which a propeller disk 14 is installed at both sides of the airship shell 20 in the Z direction in the X, Y, and Z directions. It is.

However, the thrust deflection device 10 installed at the position as described above is attached to the airship shell 20 and the operating angle is an embodiment that will vary as needed.

The thrust deflector 10 is divided into two parts, as shown in Figs. 2 and 3, the thrust deflector rotating unit 1 and the thrust deflector fixing unit 2.

The thrust deflector fixing part 2 is fixedly mounted to the strut 19 attached to the airship shell 20, and the drive servomotor 7 is attached to the thrust deflector fixing part 2. When the drive servomotor 7 of the thrust deflector fixing part 2 rotates, the pinion gear 8 attached to the servomotor shaft 7 'rotates, and the pinion gear 8 is an internal spur gear. Will rotate (9). The thrust deflector rotating unit 1 is connected to the internal gear by the rotation of the internal spur gear 9. The thrust deflector rotating unit 1 includes the thrust deflector fixing unit 2 and the bearing 3. It can be rotated freely by the rotation of the internal spur gear 9. The thrust deflector rotation part 1 has an internal tip of the position sensor movement transmission shaft 5, which is eccentrically protruded, and is then rotated once. It is connected to the position sensor 4 installed in the center of the deflector fixing part 2, and the internal spur gear 9 rotates by the rotation of the drive servomotor 7, and the internal spur gear 9 is rotated. When the thrust deflection device rotating part 1 by the rotation of the rotation will know the angle for the amount of rotation.

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The connecting pin 13 is protruded from the thrust deflector rotating part 1 to be connected to the motor or the engine 12 as shown in FIG. 3.

When the driving servomotor 7 attached to the thrust deflector fixing part 2 is operated, the motor or engine 12 mounted on the connecting pin 13 of the thrust deflector rotating part 1 rotates, and thus, the motor or The propeller disk 14 mounted on the shaft of the engine is rotated together to obtain a thrust in a desired direction. At this time, the angle of the rotation of the thrust deflector rotating part 1 is transmitted through the position transmitting shaft 5 for the position sensor. It is measured from the position sensor 4 and this value is sent to the control system of the airship so that the deflection angle of the thrust deflection device 10 can be quantitatively understood so that the current thrust direction can be easily understood. When the thrust deflection angle is set by the controller, and the input signal is sent to the driving servomotor 7, the servomotor 7 is operated to rotate the thrust deflection device rotating unit 1, and the actual rotation angle of the rotating unit 1 is positioned. sensor The value measured in (4) is fed back to the control controller. Therefore, the control controller can compare the initial setting angle with the actual measured rotation angle, and operate the servo motor to obtain the desired thrust deflection angle so that the two values coincide within the error range.

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According to the present invention, since a precise thrust deflection angle value can be sent to the airship control device using a position sensor, reliability can be improved by a simple mechanical configuration.

The present invention is to provide a thrust in the desired direction by rotating the propeller disk generating the thrust as a device for implementing the thrust deflection function required for low-speed maneuverability and shortening landing and landing distance of the airship.

1 is a perspective view showing the position and operating range of the thrust deflection device of the present invention is attached to the airship

2 is a cross-sectional view of the thrust deflection apparatus of the present invention.

Figure 3 is a connection state diagram for the thrust deflection apparatus of the present invention Figure 4 is a side view of Figure 2

[Description of Symbols for Main Parts of Drawing]

1: Thrust deflection device rotating part 2: Thrust deflection device fixing part

3: bearing 4: position sensor

5: Motion transmission axis for position sensor 7: Drive servomotor

8: Pinion Gear 9: Internal Spur Gears

Claims (4)

A thrust deflector rotating portion 1 connected to the motor or engine 12 and rotating together with the internal spur gear 9; The pinion gear 8 connected to the thrust deflection device rotating part 1 and the bearing 3 and internally connected to the internal spur gear 9 is connected to the driving servomotor 7 through the shaft 7 'and the airship A thrust deflector fixing part 2 fixed to the strut 19 of the outer shell 20, The thrust deflector rotation unit (1) and the position sensor is connected to the moving transmission shaft (5) for positioning the thrust deflection device for airships, characterized in that composed of a position sensor (4) indicating the direction of thrust. The thrust deflection device according to claim 1, wherein the connecting pin 13 of the thrust deflection device rotating unit 1 is connected to the motor or the engine 12 to generate the thrust by rotating the motor or the engine. . The thrust deflection apparatus according to claim 1, wherein the thrust deflector rotating portion (1) is formed in a hopper shape after the inside thereof protrudes in a straight shape. The position sensor (4) is characterized in that the position sensor movement transmission shaft (5) protrudes in a straight line and then bent once so as to be eccentrically connected to the thrust deflector rotating unit (1) to inform the thrust direction. Thrust deflection device for airships.