JP2012218474A - Hummingbird type flapping flight robot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hummingbird type flapping flight robot capable of an accurate and stable flight, and further reducing a loss in aerodynamic force.SOLUTION: This hummingbird type flapping flight robot 1 includes a body member 2, a plurality of main wing members 3 arranged on the body member 2, a main wing driving member 4 for driving the main wing member 3, a tail assembly 5, and a weight moving member 6 having a weight 61 and moving the weight 61. Further, in this case, the weight moving member 6 is desirably arranged between the main wing member 3 and the tail assembly 5.

Description

  The present invention relates to a flapping flying robot, and more particularly to a hummingbird-type flapping flying robot.

  The flapping flying robot has wings and can fly by flapping the wings, and generally has a main body, a main wing, and a tail wing. In the flight of a flapping flying robot, it is very important to perform flight control such as posture.

  A conventional flapping flying robot adjusts the wake at a position away from the center of gravity by moving an elevator installed on the tail wing behind the fuselage, as described in the following document 1, for example, and generates a moment due to aerodynamic force Flight control such as raising and lowering the head.

“DELFLY”, Internet (URL: http://www.delfly.nl/), search date December 1, 2010

  However, in the technique described in the above-mentioned document 1, since a pitching moment is earned by using a part of aerodynamic force generated by flapping, there is a problem that a large loss occurs in lift due to flapping. In addition, it is a system that gains moments using unsteady flow in order to earn a pitching moment by the wake of the flapping, and it is difficult to calculate how much moment can be earned and accurate control is difficult There is also a problem. Furthermore, since it receives an unsteady flow, instability may occur depending on the relationship between the wake and the area.

  Therefore, in view of the above problems, an object of the present invention is to provide a hummingbird-type flapping flying robot that can reduce aerodynamic loss and can perform accurate and stable flight and low-speed and high-speed switching.

  As a first means for solving the above problems, a hummingbird-type flapping flying robot according to the present invention includes a main body member, a plurality of main wing members arranged on the main body member, a main wing driving member for driving the main wing member, and a tail wing. A weight moving member that includes a member and a weight and moves the weight;

  As described above, according to the present invention, it is possible to provide a hummingbird-type flapping flying robot that can reduce the loss of aerodynamic force, and can switch between accurate and stable flight and low speed and high speed.

It is the schematic of the hummingbird type flapping flight robot which concerns on embodiment. It is the schematic of the main wing member of the hummingbird type flapping flight robot which concerns on embodiment. It is the schematic of the tail member of the hummingbird type flapping flight robot which concerns on embodiment. It is the schematic of the weight moving member of the hummingbird type flapping flight robot which concerns on embodiment. It is the schematic of the weight moving member of the hummingbird type flapping flight robot which concerns on embodiment. It is a photograph figure of the hummingbird type flapping flight robot concerning an example. It is a photograph figure of the hummingbird type flapping flight robot concerning an example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention can be implemented in many different forms, and is not limited only to the description of the following embodiments and examples.

  FIG. 1 is a schematic view (side view) of a hummingbird-type flapping flying robot (hereinafter referred to as “the present flying robot”) 1 according to the present embodiment. As shown in the figure, the flying robot 1 includes a main body member 2, a plurality of main wing members 3 disposed on the main body member 2, a main wing driving member 4 that drives the main wing member 3, a tail wing member 5, and a weight 61. And a weight moving member 6 having.

  In the present embodiment, the main body member 2 is a member that forms a main skeleton of the flying robot 1 and can hold and arrange other members of the flying robot 1. Although it is not limited as long as it can fly, it is a preferable example that it is light and thin rod-shaped, for example. As a result, the weight can be reduced, and the center of gravity position of the flying robot can be obtained more easily. In addition, although it does not necessarily limit as a material of the main body member 2, wood, a metal, paper, etc. can be used suitably, and it does not specifically limit.

  FIG. 2 is a diagram showing an outline (front) of the main wing member 3 according to the present embodiment. Further, in the present embodiment, the main wing member 3 performs a flapping operation and generates aerodynamic force, and is installed on the main body member 2 via the main wing drive member 4. The number of main wing members is not particularly limited, but is preferably arranged symmetrically with respect to the main shaft member 2, for example, preferably two, more preferably four.

  Further, the structure of the main wing member 3 is not limited as long as the aerodynamic force capable of flying the flying robot 1 can be generated, but the bone member 31 and the sail stretched on the bone member are not limited. It is preferable to have the member 32. The bone member 31 is not limited as long as it is strong enough to stretch the sail member 32. For example, wood, metal, paper, and the like can be used as appropriate, and the bone member 31 is not particularly limited. The sail member 32 is not limited as long as the sail member 32 can be stretched into a film and has sufficient strength to withstand flapping. For example, a polymer film, paper, or the like can be appropriately selected, and is not particularly limited.

  In the present embodiment, the main wing drive member 4 is disposed on the main body member 2 and drives the main wing member 3. The main wing drive member 4 is not limited as long as it has this function. For example, the motor 41, a battery 42 for driving the motor 41, a gear 43 connected to the motor 41, and the main wing 3 connected to the gear 43 And a transmission member 44 to be driven. In this way, the rotational movement of the motor 41 can be converted into the flapping operation of the main wing 3 via the gear 43.

  In the present embodiment, it is also preferable that the main wing drive member 4 is configured so that the speed of the flapping operation of the main wing member 3 can be varied. By varying the flapping motion speed, various operations (flight modes) of the flying robot 1 can be realized. For example, the flapping motion is fast, that is, the high-speed driving mode is a mode suitable for low-speed movement (for example, hovering) of the flying robot 1 because a large force can be generated. This mode is suitable for high-speed forward movement. A method for varying the flapping speed is not limited, but it is easy to control the number of rotations of the motor 41 per unit time, and it is preferable to control the speed by, for example, wirelessly. Specifically, it is preferable to have a motor control unit having a receiver and a speed controller, for example. The receiver preferably has three or more channels that can simultaneously handle other data. Further, the overall configuration is required to be lightweight. The receiver obtains data from the transmitter as input and outputs it to the speed controller. The speed controller obtains the voltage from the battery and the data from the receiver as inputs, and controls the voltage applied to the motor as an output as power. This power is used to control the speed of the main wing drive section through a gear and a crankshaft.

  FIG. 3 is a schematic view of the tail member 5 according to the present embodiment. Further, in the present embodiment, the tail member 5 is a member provided at the end of the main body member 2 and is a member for stabilizing the posture of the flying robot 1. The tail member 5 is fixed to the main body member 2 and is not limited as long as it can stably control the flow of aerodynamic force generated by the flapping operation of the main wing member and stabilize the flying robot 1. However, it is preferable to have a horizontal tail 51 and a vertical tail 52, for example.

  Further, as the structures of the horizontal tail 51 and the vertical tail 52 of the tail member 5 in the present embodiment, the same structure as that of the main wing 3 can be adopted, and the bone members 511 and 521 and the sail stretched on the bone member are adopted. It is preferable to have the members 512 and 522, respectively. The bone members 511 and 521 are not limited as long as they are strong enough to stretch the sail members 512 and 522. For example, wood, metal, paper, etc. can be used as appropriate. There is no limitation. Further, the sail members 512 and 522 are not limited as long as they can be stretched in a film shape and have sufficient strength to withstand flying, and for example, a polymer film, paper, or the like can be appropriately selected.

  Moreover, it is preferable that the movable rudder 523 is arrange | positioned at the vertical tail 52 of the tail member 5 in this embodiment. In this way, the flying robot 1 can move in the left-right direction (horizontal plane direction). In the present embodiment, the rudder 523 preferably includes a rudder control unit 5231 for controlling the direction of the rudder 523. As this structure, it is preferable to have a motor control part which has a receiver and an actuator driver, and it is more preferable that it is integral with the control part of a main wing part. The receiver obtains data from the transmitter as input and outputs it to the actuator driver. The actuator driver obtains the voltage from the battery and data from the receiver as inputs, and controls the direction of the tail rudder by controlling the voltage applied to the actuator as an output.

  FIG. 4 is a schematic view of the weight moving member 6 according to the present embodiment. In the present embodiment, the weight moving member 6 has the weight 61 as described above, and moves the weight, more specifically, moves the position of the weight 61 back and forth with respect to the extending direction of the main body member 2. It is something that can be done. More specifically, when the position of the weight 61 is moved forward (the left figure in FIG. 4), the extending direction of the main body member 2 can be made closer to the horizontal direction, and a mode in which the body member 2 can move at high speed is obtained. When the position 61 is moved backward (the right diagram in FIG. 4), the extending direction of the main body member 2 can be brought closer to the vertical direction, and the mode can be moved at a low speed. That is, by adopting such a configuration, it becomes possible to perform high-speed movement and low-speed movement with a minimum loss of aerodynamic force.

  In the present embodiment, it is also preferable that the weight moving member 6 is configured to move the weight up and down along the direction perpendicular to the extending direction of the main body member 2. By doing in this way, it can be brought close to the horizontal direction or close to the vertical direction.

  In the present embodiment, the weight moving member 6 is not limited, but the weight 61, the motor 62, a battery for driving the motor 62, a motor gear 63 connected to the motor 62 and rotating, It is preferable to have a transmission member 64 that is connected to the motor gear 63 and the weight 61 and transmits the drive of the motor. In this way, the position of the weight 61 can be adjusted. FIG. 5 is a diagram illustrating a side surface of the weight moving unit 6 (a diagram in a state in which the weight is later).

  Further, as shown in the figure, the transmission member 64 according to the present embodiment is further connected to the motor gear 63, and is connected to the drive gear 641, a bracket 642 fixed to the motor 62, and the drive gear. And a shaft 643 that rotates according to the rotation of the drive gear 641 and rotates the weight 61. Note that a stopper 644 is disposed on the bracket 642, and the rotation of the drive gear 641 can be stopped at a predetermined position by contacting the drive gear 641 or the shaft 643. By doing so, the flying robot 1 can move the weight 61 back and forth along the direction in which the main body member extends, and up and down with respect to the direction perpendicular to the extending direction of the main body member, Multiple flight modes can be realized.

  In the present embodiment, the weight 61 is not particularly limited, but a battery is a preferred example. By doing in this way, there exists an effect that a battery can be used not only as a drive source but as a weight, and weight reduction can be achieved. Of course, if the battery is sufficiently light, the battery and the weight can be separate elements. In this figure, the weight is an example of a battery.

  Moreover, in this embodiment, it is preferable that the weight moving member 6 has a weight position control unit for controlling the position of the weight. The structure of the weight position switching unit is not limited, but it is preferable to have an actuator control unit including, for example, a receiver for changing the rotation direction of the motor, and an actuator driver. More preferably, the main wing part and the rudder control part are integrated. The receiver obtains data from the transmitter as input and outputs it to the actuator driver. The actuator driver obtains the voltage from the battery and the data from the receiver as inputs, and controls the voltage applied to the motor as an output to make a conductive force. This power is used to control the position of the weight via a gear.

  In the present embodiment, the weight moving member 6 is preferably disposed between the blade driving member 4 and the tail blade 5. By doing in this way, the center of gravity of the flying robot 1 can be arranged in the vicinity of the center of the main body member 2, and there is an effect that the amount of change of the center of gravity position with respect to the moving distance of the weight can be increased.

  Here, the operation of the flying robot 1 described above will be described.

(High-speed drive mode)
In the high-speed drive mode, the weight 61 is disposed on the front side and the lower side of the main body member 2. As a result, the main body member 2 is inclined to the horizontal plane side. At this time, the main wing driving member 4 rotates the motor at a high speed and causes the main wing 3 to flutter at a high speed. As a result, high speed flight is possible. When switching from the low speed mode to the high speed mode, it is preferable that the motor speed of the main wing drive member 4 and the weight position of the weight moving member 6 are switched at the same time.

(Low speed drive mode)
In the low-speed drive mode, the weight 61 is disposed on the rear side and the upper side of the main body member 2, and the main body member 2 is inclined to the vertical surface side. The blade drive unit 4 rotates the motor at a low speed and causes the main wing 3 to flutter at a low speed. As a result, low speed flight is possible. When switching from the high speed mode to the low speed mode, it is preferable that the switching of the motor speed of the main wing drive member 4 and the switching of the weight position of the weight moving member 6 are performed at the same time.

  As described above, since the hummingbird-type flapping flying robot according to the present embodiment does not use the wake to change the flight posture, it is possible to greatly reduce the loss of aerodynamic force, that is, the loss of force necessary to raise the gas. Therefore, it is very effective in terms of efficiency, and has an excellent effect of avoiding the largest loss in the attitude changing method using the tail blade in the low speed drive mode (for example, hovering) that requires the most power. . Similarly, since it is almost unnecessary to use the wake, there is an effect of preventing the unsteady flow from hitting the gas tail. By preventing this, the influence of disturbance that occurs at high frequencies can be reduced, which is useful for future control. Furthermore, once the flight posture is changed, the weight can be automatically moved to a stable position, so that the system can be maintained without using power even after the drive mode is changed. That is, it is possible to fly accurately and stably with less loss.

  Here, based on the above embodiment, a hummingbird-type flapping flying robot was actually created, and the effect was confirmed. This will be specifically described below.

    In this embodiment, a rod-shaped member having a diameter of 0.5 mm, a length of 65 mm, a weight of 0.02 g, and a material carbon is used as the main body member, and a main wing having a diameter of 0.3 mm, a length of 60 mm × 4, and a weight of 0. 07 g, a carbon-made rod-shaped member was used as a bone member, and polyethylene was used as a sail member. Further, as a blade driving member, a motor (A4B05-W-2 manufactured by C-I Kasei Co., Ltd.) and a battery (FR20 manufactured by FULL RIVER) were used as a transmission member via a gear and a crankshaft. Further, in this embodiment, a tail member having a diameter of 0.5 mm, a length of 100 mm, a weight of 0.03 g, a material carbon rod-shaped member as a bone member, and a balsa material as a sail member is used as a rear part of the main body member. Fixed to. Furthermore, as a weight moving member, it was used as a transmission member for moving a weight position via a motor (F7 manufactured by SHICHOH) and a battery (FR20 manufactured by FULL RIVER), and further via a gear. A photograph of the created hummingbird-type flapping flying robot is shown in FIGS.

  In this embodiment, the drive mode is changed by moving the battery with the motor to change the position of the center of gravity with respect to the blade, and the weight position is also changed with the motor.

  Then, a hummingbird-type flapping flying robot with the above configuration was created, and when flight experiments were actually performed, it was confirmed that it was possible to fly stably while changing the flight mode, and it was possible to fly accurately and stably with less loss. It was confirmed that

  The present invention has industrial applicability as a hummingbird-type flapping flying robot.

DESCRIPTION OF SYMBOLS 1 ... Hummingbird type flapping flight robot, 2 ... Main body member, 3 ... Main wing member, 4 ... Main wing drive member 4, 5 ... Tail member, 6 ... Weight moving member

Claims (4)

A body member;
A hummingbird-type flapping flying robot having a plurality of main wing members disposed on the main body member, a main wing driving member that drives the main wing member, a tail wing member, and a weight moving member that has a weight and moves the weight.   The hummingbird-type flapping flying robot according to claim 1, wherein the weight moving member is disposed between the main wing member and the tail wing member.   The hummingbird-type flapping flying robot according to claim 1, wherein the weight moving member moves the weight back and forth with respect to the extending direction of the main body member.   The hummingbird-type flapping flying robot according to claim 1, wherein the weight is a battery.