Electrically-driven rolling and folding type missile wing mechanism

Abstract

The invention belongs to the technical field of missile wings, and discloses an electrically-driven rolling and folding type missile wing mechanism which is characterized by comprising a base (1), a turntable (2), a connecting plate (3), a support frame (4), a wing surface (5), a wing shaft (6), a wing shaft buffer sleeve (7) and a rotating shaft (8), the base (1) is of an annular structure, the rotating disc (2) is arranged in the base (1), and the rotating disc (2) and the base (1) are rotationally connected. A locking mechanism is arranged on the inner side of the base (1), and a corresponding locking hole is formed in the rotating disc (2). The supporting frame (4) is of an annular structure. The structure is simple, missile wing unfolding synchronism is high, missile wing postures are mainly adjusted through electric signals, and the structure is easy to control and high in unfolding precision. The missile wing unfolding condition can be actively controlled, and the guided missile can accurately fly according to the specified track.

Description

Technical Field

[0001] The invention belongs to the technical field of wing, and particularly relates to an electric drive roll-up wing mechanism. Background Art

[0002] In order to miniaturize the aircraft launch device and simplify the transportation and storage of missiles, folding wing structures are mostly used in aircraft. So far, folding wing mechanisms can be divided into elastic element drive type, gas pressure drive type and motor drive type according to the drive source. The research and application of the former two have been relatively extensive, while the electric drive folding wing mechanism is extremely rare.

[0003] Although the research on elastic element drive type and gas pressure drive type wing mechanisms has been relatively in-depth, they mostly show large impact during the wing surface unfolding process and large differences in the unfolding of multiple wing surfaces, that is, the strength and stability of the wing surface need to be improved. In addition, during the assembly stage, it is mostly necessary to manually intervene when the wing retracts into the cylinder, which is extremely laborious and there are certain hazards. Summary of the Invention

[0004] The technical problem to be solved by the invention is: the problems of large impact during the wing surface unfolding process and large differences in the unfolding of multiple wing surfaces in the elastic element drive type and gas pressure drive type wing mechanisms.

[0005] To solve the above technical problems, the specific technical solution of the invention is as follows:

[0006] An electric drive roll-up wing mechanism, comprising a base, a turntable, a connecting plate, a support frame, a wing surface, a wing shaft, a wing shaft buffer sleeve, and a rotating shaft;

[0007] The base is a circular ring structure, the turntable is arranged inside the base, and the two are rotationally connected; a locking mechanism is arranged on the inner side of the base, and corresponding locking holes are arranged on the turntable; the support frame is a circular ring structure, which is arranged parallel to the base, and the two are fixedly connected by a connecting plate; a rotating shaft is arranged at the top of the wing surface, and the rotating shaft is inserted into a circular hole at the bottom of the support frame; the wing shaft is fixed at the bottom edge of the wing surface, and the wing shaft buffer sleeve is sleeved on the wing shaft; an arc-shaped chute is arranged on the turntable, and the wing shaft is inserted into the chute;

[0008] The locking mechanism includes a locking pin, a locking spring and a locking nut. The locking nut and the locking pin are fixed in the locking hole of the base. The head of the locking pin presses against the side of the turntable, and the locking spring is arranged between the tail of the locking pin and the locking nut.

[0009] Among them, there are four groups of the wing surfaces, which are rotationally symmetrically arranged along the base.

[0010] Among them, the turntable is driven by a servo motor.

[0011] Among them, the wing surface is made of spring steel.

[0012] Among them, the head of the locking pin is provided with a taper.

[0013] The present invention also provides an aircraft applying an electric drive rolling and folding wing mechanism.

[0014] The present invention also provides an ammunition applying an electric drive rolling and folding wing mechanism.

[0015] The present invention has the following advantages:

[0016] 1. The structure is simple and compact, and the occupied space is small.

[0017] 2. With a unified drive source, the wing surfaces have good unfolding synchronization and small unfolding impact.

[0018] 3. The degree of wing surface unfolding can be autonomously controlled by an electric signal, and the guidance accuracy is high.

[0019] 4. Adopting a double locking structure, the stability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the electric drive rolling and folding wing mechanism of the present invention;

[0021] Figure 2 is Figure 1 the bottom view of

[0022] Figure 3 is a schematic diagram of the wing;

[0023] Figure 4 is a schematic diagram of the turntable;

[0024] Figure 5 is Figure 1 the top view of

[0025] Figure 6 is Figure 5 the A-A view of

[0026] Figure 7 is Figure 6 the enlarged view at B of

[0027] Figure 8 is a schematic diagram of the contracted state of the electric drive rolling and folding wing mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to better understand the purpose, structure and function of the present invention, the present invention will be further described in detail below with reference to the drawings.

[0029] As Figure 1As shown in the figure, an electric drive rolling and folding wing mechanism of the present invention is specifically composed of a base 1, a turntable 2, a connecting plate 3, a support frame 4, a wing surface 5, a wing shaft 6, a wing shaft buffer sleeve 7, a rotating shaft 8, a locking pin 9, a locking spring 10, and a locking nut 11. It can be mainly divided into three major parts: a fixing mechanism, a driving mechanism, and a locking mechanism.

[0030] The base is fixed, and the turntable is rotatably connected inside. The turntable is designed as a curved guide rail structure, and its specific position and arc length are determined according to the contraction and expansion degree of the wing surface. Different schemes can be set according to different requirements, that is, the arc curve size can be set according to different situations. For details, see Figure 4 .

[0031] The driving device is composed of a motor, a turntable (the guide rail thereon), a wing shaft, a wing shaft buffer sleeve, a wing surface, and a rotating shaft.

[0032] The locking device is composed of a servo motor, a turntable, a locking pin, a locking spring, and a locking nut. During the period when the wing is not fully unfolded, the servo motor mainly controls the unfolding degree of the wing surface according to the electrical signal, thereby forming different postures to achieve precise guidance. When it is fully unfolded, in addition to the servo motor locking, an auxiliary locking mechanism is added. According to the fully unfolded position of the wing surface, the locking hole on the turntable rotates to the locking mechanism. Under the action of the spring, the locking pin is inserted into the locking hole of the turntable, that is, the auxiliary locking is completed. The double locking mechanism of the main lock and the auxiliary lock is beneficial to the timely stability of the wing surface being fully unfolded and can provide better stable lift for the projectile body.

[0033] A wing shaft buffer sleeve is arranged on the wing shaft to reduce the impact and wear during the rotation process.

[0034] The wing surface can be designed as spring steel or other materials with high elasticity, high strength, and high toughness that can be curled according to actual application requirements.

[0035] The locking pin is designed with a corresponding taper to facilitate insertion into the locking pin hole of the disc for locking.

[0036] Connection relationship: The base 1 is fixed, and the turntable 2 is rotatably connected inside. The wing shaft 6 is fixedly connected to the wing surface by threads, and a structure of a socket and a buffer sleeve 7 is designed on the surface of the wing shaft 6. The wing surface 5 is rotatably connected to the support frame 4 through the rotating shaft 8. The support frame 4 is fixedly connected to the base through the connecting plate 3. The locking nut 11 is threadedly connected to the fixed base 1. When the wing surface is fully unfolded, the turntable also rotates to the corresponding position. Under the action of the locking spring 10, the locking pin 9 is inserted into the corresponding locking hole of the turntable 2, as Figure 6-7 .

[0037] Working process: During the assembly stage, the wing 5 is in a contracted state, as Figure 8, the wing surface can be electrically controlled to contract, reducing manual intervention and avoiding harm to personnel (such as the elastic manual contraction type is prone to accidentally injuring personnel), and it is loaded into the cartridge case. In the launch state, the wing mechanism pops out of the cartridge case along with the full ejection. The motor 1 receives a signal and drives the turntable to rotate counterclockwise. The curved guide rail in the turntable drives the folding wings to unfold clockwise. The motor independently controls the degree of rotation of the turntable, and thus controls the degree of unfolding of the wing surface. In the short moment after the missile is launched out of the cartridge case, induced drag may be generated and it may deflect. It can independently adjust the degree of unfolding or contraction of the wings, reduce the occurrence of deflection roll, and improve stability and guidance accuracy. In the locked state, when the wing surface is fully unfolded, the turntable stops rotating, and the locking pin is inserted into the locking hole of the turntable under the action of the locking spring to complete secondary locking, such as Figure 5-7 . In addition, to reduce the impact on the wing axis when the wing surface is fully unfolded, a buffer sleeve structure is designed on the surface of the wing axis.

[0038] The key points of this embodiment are:

[0039] 1. The turntable is designed with a curved guide rail structure. The specific dimensions and arc length are determined according to the degree of contraction and unfolding of the wing surface, and different schemes can be set according to different requirements.

[0040] 2. Compared with the currently common mechanical folding wing mechanism, the present invention is controlled by an external signal to adjust the degree of rotation of the turntable, and thus controls the degree of unfolding of the wing surface, reduces the occurrence of deflection roll, and improves stability and guidance accuracy. The structure of this invention is simple, and the synchronization of the wing unfolding is high. It mainly adjusts the wing attitude through electrical signals. This kind of structure is easy to control and has high unfolding accuracy. It can actively control the unfolding of the wings and realize the precise flight of the missile according to the specified trajectory.

[0041] 3. A wing axis buffer sleeve is arranged on the wing axis to reduce the impact and wear during the rotation process; and the impact during the unfolding process of the wing surface is small.

[0042] 4. After being fully unfolded, a double-locking structure is adopted, with high stability.

[0043] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, for those skilled in the art, without departing from the principle of the present invention, several deformations and improvements can still be made, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. An electric drive rolling and folding wing mechanism, characterized in that It includes a base (1), a turntable (2), a connecting plate (3), a support frame (4), a wing surface (5), a wing shaft (6), a wing shaft buffer sleeve (7), and a rotating shaft (8); The base (1) is of an annular structure, and the turntable (2) is arranged inside the base (1) and the two are rotatably connected; a locking mechanism is arranged on the inner side of the base (1), and corresponding locking holes are arranged on the turntable (2); the support frame (4) is of an annular structure and is arranged parallel to the base (1), and the two are fixedly connected through the connecting plate (3); a rotating shaft (8) is arranged at the top of the wing surface (5), and the rotating shaft (8) is inserted into a circular hole at the bottom of the support frame (4); the wing shaft (6) is fixed at the bottom edge of the wing surface (5), and the wing shaft buffer sleeve (7) is sleeved on the wing shaft (6); an arc-shaped chute is arranged on the turntable (2), and the wing shaft (6) is inserted into the chute; The locking mechanism includes a locking pin (9), a locking spring (10), and a locking nut (11). The locking nut (11) and the locking pin (9) are fixed in the lock hole of the base (1), the head of the locking pin (9) presses against the side surface of the turntable (2), and the locking spring (10) is arranged between the tail of the locking pin (9) and the locking nut (11).

2. The electric drive rolling and folding wing mechanism according to claim 1, wherein There are a total of four groups of the wing surfaces 5, which are arranged symmetrically along the rotation of the base.

3. The electric drive rolling and folding wing mechanism according to claim 1, wherein, The turntable 2 is driven by a servo motor.

4. The electric drive rolling and folding wing mechanism according to claim 1, characterized in that, The wing surface is made of spring steel.

5. The electric drive roll-up wing mechanism according to claim 1, characterized in that The head of the locking pin is provided with a taper.

6. An aircraft applying an electric drive roll-up type elastic wing mechanism.

7. An ammunition applying an electric drive roll-up type elastic wing mechanism.

Images