CN219237356U - A wing folding device that can be folded and unfolded repeatedly - Google Patents

Abstract

The utility model relates to a wing folding device capable of repeatedly folding and unfolding, which comprises a base, a bearing seat, a bearing, a wing and a motor, wherein the wing is provided with two ends, namely a first end and a second end, the first end of the wing is fixedly connected with the base through a rotating connecting piece in a rotating way, and the second end of the wing is a free end; the motor is arranged on the base, and is in gear transmission with the rotating connecting piece and used for driving the wing to rotate in a fixed shaft manner; the pair of wings are symmetrically arranged, and the two wings share a motor; the driving gear connected with the motor is meshed with the driven gear on one of the rotating connecting pieces, the driven gear on the other rotating connecting piece is meshed with the transmission gear, and the transmission gear is meshed with the driving gear. According to the wing unfolding and folding device, the unfolding and folding of the wings can be realized by changing the rotating direction of the motor, the forward and reverse rotation of the motor is easy to control, the operation is simple, the wing unfolding and folding device has the advantages of being capable of being unfolded and folded repeatedly, the wing storage of a freight glider is facilitated, and the requirements of a large-span wing on the lifting environment and the recycling and transportation can be reduced.

Description

A wing folding device that can be folded and unfolded repeatedly

technical field

The utility model relates to the technical field of air freight glider/aircraft, in particular to a wing folding device which can be repeatedly folded and unfolded.

Background technique

In recent years, in the field of air cargo transportation, a freight method that relies on glider for airdrop has emerged. Due to the large wingspan of the glider, enlarging the wingspan glider in the cabin of the transport aircraft or hanging the glider on the helicopter all impose requirements on the size of the glider and the foldable storage of the wings.

In addition, for a glider equipped with a four-rotor power system to achieve vertical takeoff and landing, the wings with a large wingspan need to be in a folded state during vertical takeoff and landing; when gliding, the wings with a large wingspan need to be unfolded state. Therefore, for this glider that can take off and land vertically, there is a requirement that the wings can be folded and unfolded repeatedly.

The existing wing folding and unfolding methods mainly rely on torsion springs to realize transmission and folding. The wings are unfolded by torsion springs, and the wings are deployed for one time. The spring needs to be recharged for the next use, and the speed of wing expansion is uncontrollable. The impact of wing expansion is relatively large, which is easy to damage Damage to key stress-bearing components. After the glider lands, the large-span wings cannot be folded and stored again, which is not conducive to the recovery and transportation of the glider.

Utility model content

In order to solve the above technical problems, the present application provides a wing folding device that can be folded and unfolded repeatedly.

The application is realized through the following technical solutions:

A wing folding device that can be folded and unfolded repeatedly, including a base, a wing and a motor. The wing has two ends, namely the first end and the second end, and the first end of the wing rotates with the base on a fixed axis. connected, the second end of the wing is a free end; the motor is mounted on the base, and the motor is used to drive the wing to perform the fixed-axis rotation. The fixed-axis rotation in this paper refers to the rotation with the axis unchanged.

Optionally, the first end of the wing is rotatably connected to the base through a rotatable connecting piece.

Optionally, a bearing seat is installed on the base, and there is a bearing in the bearing seat, and the rotating connector is installed in the bearing seat and connected with the bearing in the bearing seat, and the first end of the wing is fixedly connected to the rotating connecting member , the motor is connected with the rotating connector.

Optionally, a driven gear is installed on the rotating connector, the output shaft of the motor is connected to the driving gear, and the driving gear and the driven gear are geared. The repeatable folding and unfolding device based on gear transmission can realize the folding and unfolding of the wings. After the wings are folded or unfolded, the locking effect of the wings can be achieved due to the fixed position of the motor.

In particular, the wings have a pair, the two wings are arranged symmetrically, and the two wings share one motor.

Optionally, the driving gear connected to the motor meshes with the driven gear on one of the rotating connectors, the driven gear on the other rotating connector meshes with the transmission gear, and the transmission gear meshes with the driving gear.

In particular, the base is plate-shaped, the wings and the motor are installed above the base, and the driving gear, driven gear and transmission gear are all located below the base; In the first shaft hole where the fitting fits, the base has a second shaft hole at the position corresponding to the output shaft of the motor, and the bearing seat is installed at the first shaft hole; the rotating connecting piece is installed at the second shaft hole of the base In the first shaft hole, the output shaft of the motor is installed in the second shaft hole, the lower end of the rotating connector is connected with the driven gear, and the upper end of the rotating connector is connected with the wing.

Optionally, the rotating connecting piece is a hollow structure, which can reduce weight.

Optionally, the motor is a servo motor.

In particular, the motor has its own deceleration mechanism inside.

Compared with the prior art, the present application has the following beneficial effects:

1. This application solves the problem that the wing deployment speed of the existing cargo glider is uncontrollable and cannot be repeatedly unfolded and folded. It is convenient for the storage of the wings of the cargo glider, and can reduce the impact of large wingspan on the take-off and landing environment and recovery and transportation. Require;

2. The speed of the motor is adjustable, and the speed of folding and unfolding is controllable, avoiding the collision caused by the rapid deployment of the torsion spring, and reducing the strength requirements for the wings and the folding mechanism.

3. The folding and unfolding angles of the present application are easy to control. The continuous rotation of the motor and the gears make the angles of folding and unfolding adjustable, and the unfolding and folding of the wings are more flexible and convenient.

Description of drawings

The drawings described here are used to provide a further understanding of the embodiments of the present application, constitute a part of the application, and do not limit the embodiments of the present utility model.

Fig. 1 is a three-dimensional view of the wing folding device when the wings are deployed in an embodiment;

Fig. 2 is the front view of the wing folding device when the wings are unfolded in the embodiment;

Fig. 3 is the bottom view of the wing folding device when the wings are deployed in the embodiment;

Fig. 4 is the three-dimensional figure of base in the embodiment;

Fig. 5 is the three-dimensional diagram of transmission gear in the embodiment;

Fig. 6 is a three-dimensional view of the wing folding device when the wings are folded in the embodiment;

Fig. 7 is a three-dimensional view of the rotating connector in the embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. The components of embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present utility model, all other implementation manners obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, or is The usual orientation or positional relationship of the utility model product in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

As shown in FIG. 1 , the repeatedly foldable and unfoldable wing folding device disclosed in this embodiment includes a base 1 , a wing 2 and a motor 5 , and the wing 2 and the motor 5 are mounted on the base 1 . The base 1 can be used to be fixed or integrally manufactured with the fuselage of the glider.

The wing 2 has two ends, which are respectively the first end and the second end. The first end of the wing 2 is connected with the base 1 for fixed axis rotation, the second end of the wing 2 is a free end, and the motor 5 is used to drive the machine. Wing 2 rotates on a fixed axis.

In a possible design, the first end of the wing 2 is rotatably connected to the base 1 through the rotatable connecting member 3 . On the base 1 there is a bearing seat 4 adapted to the rotating connector, and the bearing seat 4 contains a bearing. The rotating connector 3 is installed in the bearing housing 4 and is connected with the bearing in the bearing housing 4, so that the rotating connector 3 can rotate with a fixed axis relative to the base 1, and the first end of the wing 2 is fixedly connected to the rotating connector 3 , the motor 5 is connected to the rotating connector 3, and the rotating connecting member 3 is driven to rotate and then the wing 2 is driven to rotate, thereby realizing the folding and unfolding of the wing 2.

It is worth noting that the diameter of the first shaft hole 11 is the same as the outer diameter of the rotating connecting member 3 .

In a possible design, as shown in Fig. 2 and Fig. 3, a driven gear 7 is mounted on the rotating connector 3, and when the driven gear 7 rotates, the rotating connector 3 will rotate along with the driven gear 7; the motor 5 The output shaft of the motor is connected with the driving gear 6, and the driving gear 6 is geared with the driven gear 7, so that the rotational motion of the motor 5 is transmitted to the rotating connecting member 3 and the wing 2.

It is worth noting that each wing 2 can be equipped with one motor 5 , and two or more wings 2 can also share one motor 5 .

In one possible design, there is a pair of wings 2, and the two wings 2 are arranged symmetrically. Two wings 2 share a motor 5 . Specifically: the drive gear 6 connected to the motor 5 meshes with the driven gear 7 on one of the rotating connectors 3, while the driven gear 7 on the other rotating connector 3 meshes with the transmission gear 8, and the transmission gear 8 is then engaged with the transmission gear 8. The drive gear 6 meshes. The effect of transmission gear 8 is to change the direction of transmission, so that the rotation directions of the two driven gears 7 are opposite.

In a possible design, the base 1 is plate-shaped, the main engine of the wing 2 and the motor 5 are located above the base 1 , and the driving gear 6 , driven gear 7 and transmission gear 8 are located below the base 1 . The lower end of the rotating connector 3 is connected with the driven gear 7, and the upper end is connected with the wing 2.

Correspondingly, as shown in Figure 4, there are first shaft holes 11 on the base 1 corresponding to the positions of the two rotating connectors 3, and the bearing seat 4 is installed at the first shaft holes 11, and the first shaft holes 11 and The rotating connecting piece 3 is adapted, and the rotating connecting piece 3 is installed in the first shaft hole 11 of the base 1 . The position of the base 1 corresponding to the output shaft of the motor 5 has a second shaft hole 12 , the second shaft hole 12 is used to pass through the output shaft of the motor 5 , and the output shaft of the motor 5 is connected with the driving gear 6 .

In a possible design, the base 1 has a column at the position corresponding to the transmission gear 8. As shown in Figure 5, the center of the transmission gear 8 has a column hole 81 adapted to the column. The effect on base 1.

In a possible design, the motor 5 and the bearing seat 4 are fixed on the base 1 by means of screws and nuts.

In a possible design, as shown in FIG. 7 , the rotating connecting member 3 is a hollow structure.

When the output shaft of the motor 5 rotates, it can drive the drive gear 6 to rotate. Looking down from the top of the wing 2, when the driving gear 6 rotates clockwise, one of the driven gears 7, one of the rotating connectors 3 and one of the wings 2 synchronously rotate counterclockwise, and the other driven gear 7 rotates clockwise , the other rotating link 3 and the other wing 2 rotate clockwise synchronously to realize the synchronous deployment of the two wings 2; otherwise, the two wings 2 are folded synchronously. The folding process of the wing 2 is opposite to the unfolding process, and the action mode is similar to that of wing expansion, which will not be repeated here.

In a possible design, the parameters of the transmission gear 8 and the drive gear 6 are the same.

In a possible design, the reduction ratio between the transmission gear 8 and the driven gear 7 is 19:8; the reduction ratio between the driving gear 6 and the driven gear 7 is 19:8.

In a possible design, the motor 5 is a servo motor.

Optionally, the motor 5 has a deceleration mechanism inside, and the output of the output shaft is the decelerated output speed and corresponding torque. It can reduce the rotational speed of the output shaft and increase the output torque of the output shaft.

In a possible design, the motor 5 adopts a position control method, and the motor 5 operates under the action of a control signal, and the control signal controls the rotation direction, the number of rotations and the rotation speed of the output shaft of the motor 5 . When the folding or unfolding is finished, the output shaft of the motor 5 will remain in a specific position, which plays the role of locking the position of the wing, and can be kept in the unfolded or folded state.

As shown in Figure 6, in the initial state, the wings are folded. In order to expand the wings, the motor 5 rotates clockwise under the action of the control signal, and the output shaft of the motor 5 drives the drive gear 6 to rotate clockwise, driving the two wings 2 to rotate clockwise and counterclockwise respectively until they are deployed; as shown in Figure 1 It is shown that after the wing 2 rotates and unfolds by 90 degrees, the motor 5 stops, and the position of the output shaft of the motor 5 is fixed. Due to the meshing between the gears and the reduction mechanism, the wing 2 can be maintained in the unfolded state.

The clockwise rotation and counterclockwise rotation of the motor 5 correspond to the unfolding and folding process of the wing 2 respectively. Changing the rotation direction of the motor 5 can realize the unfolding and folding of the wing 2. Changing the rotation speed of the motor 5 can change the movement of the wing 2. The speed at which wing 2 unfolds and folds.

In this application, the folding and unfolding of the wings is realized through the cooperation of the motor and the gear, and the unfolding and folding of the wings can be realized by changing the rotation direction of the motor. The folding of the wings, compared with the animal-force deployment method of torsion springs, is easy to control the forward and reverse rotation of the motor, simple operation, and has the advantages of repeatable unfolding and folding.

The above specific implementations have further described the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above are only specific implementations of the present utility model, and are not used to limit the protection scope of the present utility model. , Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A wing folding device capable of repeated folding and unfolding, characterized in that: comprising: base (1); The wing (2), the wing (2) has two ends, respectively the first end and the second end, the first end of the wing (2) is connected to the base (1) for fixed axis rotation, and the wing (2) The second end of is the free end; The motor (5) is installed on the base (1), and the motor (5) is used to drive the wing (2) to perform the fixed-axis rotation. 2. A wing folding device that can be folded and unfolded repeatedly according to claim 1, characterized in that: the first end of the wing (2) is rotatably connected to the base (1) through a rotatable connector (3) . 3. A wing folding device that can be folded and unfolded repeatedly according to claim 2, characterized in that: the base (1) is equipped with a bearing seat (4), and there is a bearing in the bearing seat (4); The rotating connector (3) is installed in the bearing seat (4) and connected with the bearing in the bearing seat (4), and the first end of the wing (2) is fixedly connected to the rotating connecting member (3). The motor (5) is connected with the rotating connector (3). 4. A wing folding device that can be repeatedly folded and unfolded according to claim 3, characterized in that: said rotating connector (3) is equipped with a driven gear (7), and said motor (5) The output shaft is connected with the driving gear (6), and the driving gear (6) and the driven gear (7) are geared. 5. A wing folding device that can be folded and unfolded repeatedly according to claim 4, characterized in that: the wings (2) have a pair, the two wings (2) are arranged symmetrically, and the two wings (2) share one motor (5). 6. A wing folding device that can be folded and unfolded repeatedly according to claim 5, characterized in that: the drive gear (6) connected to the motor (5) and the slave on one of the rotating connectors (3) The driven gear (7) meshes, and the driven gear (7) on the other rotating connector (3) meshes with the transmission gear (8), and the transmission gear (8) meshes with the drive gear (6) again. 7. A wing folding device that can be folded and unfolded repeatedly according to claim 6, characterized in that: the base (1) is plate-shaped, and the wing (2) and the motor (5) are both Installed above the base (1), the driving gear (6), driven gear (7) and transmission gear (8) are all located under the base (1); The base (1) has a first shaft hole (11) adapted to the rotating connector (3), and the base (1) has a second shaft hole at the position corresponding to the output shaft of the motor (5) (12), the bearing seat (4) is installed at the first shaft hole (11); The rotating connector (3) is installed in the first shaft hole (11) of the base (1), the output shaft of the motor (5) is installed in the second shaft hole (12), and the rotating connector (3) The lower end is connected with the driven gear (7), and the upper end of the rotating connector (3) is connected with the wing (2). 8. A wing folding device that can be folded and unfolded repeatedly according to any one of claims 1-7, characterized in that the rotating connecting member (3) is a hollow structure. 9. A wing folding device that can be folded and unfolded repeatedly according to any one of claims 1-7, characterized in that the motor (5) is a servo motor. 10. A wing folding device that can be folded and unfolded repeatedly according to claim 9, characterized in that: the motor (5) has its own deceleration mechanism inside.

Images