Wing deformation folding transmission locking mechanism

Abstract

The invention discloses a wing deformation folding transmission locking mechanism, and particularly relates to the field of aircrafts. Comprising two fixing bases, the two fixing bases are connected with a main wing butt joint beam through bolts, a sliding groove is formed between the two fixing bases, a locking sliding block is slidably connected into the sliding groove, a first limiting block is integrally formed on one side of the locking sliding block, and a driving assembly used for driving the locking sliding block to slide is arranged on the locking sliding block; a rotating shaft is rotationally connected between the two fixing bases, a second limiting block is arranged on one side of the rotating shaft, a fixing plate is integrally formed on one side of the rotating shaft and is in bolted connection with the aileron butt-joint cross beam, a connecting shaft block is arranged on the other side of the fixing plate, and a folding driving piece is slidably connected to the connecting shaft block; a rotating assembly installed on the fixed base is arranged on the folding driving piece and used for driving the folding driving piece to rotate. By the adoption of the technical scheme, the problem that an existing airplane occupies space in the transportation process is solved, and the space occupied by the airplane in the transportation process can be reduced.

Description

Technical Field

[0001] The invention relates to the field of aircraft, and in particular to a wing deformation folding transmission locking mechanism. Background Art

[0002] In traditional aircraft design, the fixed connection between the wing and the fuselage ensures stable flight performance, but it has obvious shortcomings in transportation and storage. Especially for small aircraft, such as drones and gliders, they usually need to be moved over long distances by means of transportation such as trucks, trains, airplanes or ships. Due to the relatively long wingspan of these aircraft, they occupy a large space during transportation, which not only limits transportation efficiency but also significantly increases transportation costs.

[0003] If the wings are connected in a detachable manner, although it seems that the problem of taking up space during transportation can be solved, it faces many difficulties in actual operation. First, the process of disassembling and reassembling the wings is complicated and time-consuming, requiring professional technicians and tools. Secondly, there is a risk of losing key parts during the disassembly process, which not only increases maintenance costs, but may also affect the performance and safety of the aircraft. More importantly, even if the wings are successfully reassembled, the strength of the joints may not meet the original design standards, which may lead to structural failures during flight and pose serious safety hazards.

[0004] In view of these limitations, people began to seek a new type of aircraft design, that is, an aircraft with foldable wings to replace traditional fixed-wing aircraft. This design can significantly improve the space efficiency during transportation, thereby effectively reducing transportation costs.

[0005] In summary, it is necessary to design a wing deformation folding transmission locking mechanism. Summary of the invention

[0006] The present invention aims to provide a wing deformation folding transmission locking mechanism, which solves the problem of existing aircraft occupying space during transportation.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a wing deformation folding transmission locking mechanism comprises two fixed bases, the two fixed bases are bolted to the main wing docking beam, a slide groove is provided between the two fixed bases, a locking slider is slidably connected in the slide groove, one side of the locking slider is integrally formed with a plurality of first limit blocks in the shape of a step set at intervals, the locking slider is provided with a driving component for driving the locking slider to slide, a rotating shaft is rotatably connected between the two fixed bases, one side of the rotating shaft is provided with a plurality of second limit blocks matching the first limit blocks, a horn hole for clamping the first limit blocks is formed between adjacent second limit blocks, a fixing plate is integrally formed on one side of the rotating shaft, the fixing plate is bolted to the aileron docking beam, a connecting shaft block is provided on the other side of the fixing plate, a folding driving member is slidably connected to the connecting shaft block, the folding driving member is provided with a rotating component installed on the fixed base, and the rotating component is used to drive the folding driving member to rotate.

[0008] Furthermore, the drive assembly includes an electric cylinder arranged on the main wing docking beam, the electric cylinder is rotatably connected to a transmission crank via a pin shaft, the middle part of the transmission crank is rotatably connected to the main wing docking beam, and the other end of the transmission crank is rotatably connected to a locking slider.

[0009] Furthermore, the rotating assembly includes a motor arranged on the main wing docking beam, a first gear is provided on the output shaft of the motor, the first gear is meshed with a second gear, the second gear is rotatably connected to the fixed base through a primary gear shaft, the second gear is meshed with a third gear, the third gear is provided with a secondary gear shaft rotatably connected between two fixed bases, the secondary gear shaft is provided with a fourth gear, the fourth gear is meshed with a driven gear, and the driven gear is provided on the folding drive member.

[0010] Furthermore, a C-shaped groove is provided on one side of the rotating shaft, and the angle between the two side walls of the C-shaped groove is 90°. A through hole is penetrated through each of the fixed bases, and a protrusion matching the C-shaped groove is provided in the through hole.

[0011] Furthermore, each of the folding drive members is tadpole-shaped, and has a symmetrically arranged cylindrical slider at the tail of the folding drive member. The cylindrical slider is slidably connected to a connecting shaft block, and the connecting shaft block is arranged on the aileron docking beam, and the driven gear is integrally formed at the head of the folding drive member.

[0012] Compared with the prior art, this solution has the following beneficial effects:

[0013] 1. In this solution, the rotating shaft can only move within the range of 0°-90°, making it easier to lock the wings in the extreme positions of unfolding and folding.

[0014] 2. This solution uses six folding drive parts, and the structure is specifically strengthened, making this solution strong and able to resist interference.

[0015] 3. This solution adopts multi-stage gear transmission, which can output greater torque when the output torque of the motor is certain and the space is limited, and the appropriate main-aileron ratio can be customized according to needs.

[0016] 4. In this solution, the electric cylinder drives the locking slider through the transmission crank, which can realize the rapid unlocking and locking of the wing. In addition, the eight step-shaped first limit blocks on the locking slider increase the contact area with the rotating shaft, which can greatly improve the ability of the locking state to resist external interference and extend the service life of this solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axial side view of a wing deformation folding transmission locking mechanism of the present invention;

[0018] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0019] Figure 3 It is a top view of a wing deformation folding transmission locking mechanism of the present invention;

[0020] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0021] Figure 5 It is a side view of a wing deformation folding transmission locking mechanism of the present invention;

[0022] Figure 6 yes Figure 5 A partial enlarged view of point C in the middle;

[0023] Figure 7 It is a top view of a wing deformation folding transmission locking mechanism of the present invention;

[0024] Figure 8 yes Figure 7 A partial enlarged view of point D in the middle;

[0025] Fig. 9 is an axonometric view of the main wing docking beam in this embodiment;

[0026] Fig.10 is an axonal view of the aileron docking beam in this embodiment;

[0027] Fig.11 is an axial view of the fixed base in this embodiment;

[0028] Fig.12is an axial side view of the rotating shaft in this embodiment;

[0029] Fig.13 is an axial side view of the locking slider in this embodiment;

[0030] Fig.14 It is a schematic diagram of a folding state of a wing deformation folding transmission locking mechanism of the present invention;

[0031] Fig.15 It is a schematic diagram of a wing folding state in which a wing deformation and folding transmission locking mechanism is located according to the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below through specific embodiments:

[0033] The figure marks in the drawings of the specification include: fixed base 1, main wing docking beam 2, groove 3, slide groove 4, locking slider 5, first limit block 6, transmission crank 7, electric cylinder 8, electric cylinder base 9, motor bracket 10, motor 11, first gear 12, second gear 13, first-stage gear shaft 14, third gear 15, rotating groove 16, fourth gear 17, lubrication sleeve 18, transmission shaft 19, shaft hole 20, rotating shaft 21, protrusion 22, fixed plate 23, aileron docking beam 24, second limit block 25, connecting shaft block 26, slideway 27, folding drive member 28, driven gear 29.

[0034] Example

[0035] like Figures 1 to 15As shown, a wing deformation folding transmission locking mechanism includes two fixed bases 1 arranged at intervals, and the two fixed bases 1 are connected to the main wing docking beam 2 through multiple bolts. A groove 3 is opened in each fixed base 1, and a slide 4 is connected between the two grooves 3. A locking slider 5 is slidably connected inside the slide 4. The locking slider 5 is a rectangular structure. A small cylindrical shaft block is provided at the end of the locking slider 5, and one side of the locking slider 5 is integrally formed with eight first limit blocks 6 in the shape of a step arranged at intervals. With the help of the first limit blocks 6, it is convenient to increase the contact area with the rotating shaft 21, which can greatly improve the ability of the locking state to resist external interference, and the strength is higher, and the service life of the mechanism is extended. A driving component for driving the locking slider 5 to slide is provided on the locking slider 5, and the driving component includes an electric cylinder 8 arranged on the main wing docking beam 2, and the rear end of the electric cylinder 8 is fixedly connected to the electric cylinder 8 base by screws, and the electric cylinder 8 base is fixedly connected to the main wing docking beam 2. The electric cylinder 8 is rotatably connected to the transmission crank 7 through a pin shaft. The transmission crank 7 is an axisymmetric structure. The middle part of the transmission crank 7 is rotatably connected to the main wing docking beam 2 through a bearing and an axis pin, and the other end of the transmission crank 7 is rotatably connected to the locking slider 5 through a pin shaft. The transmission crank 7 rotates around the axis pin in the working state to form a seesaw-like structure, which can transmit force more effectively.

[0036] A motor bracket 10 is also provided in the fixed base 1. A motor 11 is screwed to the motor bracket 10. A controller is electrically connected to the motor 11. The controller is used to control the opening and closing of the motor 11 and the angle of rotation. A first gear 12 is provided on the output shaft of the motor 11. A second gear 13 is meshed with the first gear 12. A primary gear shaft 14 is pierced through the center of the second gear 13 through a bearing. The primary gear shaft 14 is rotatably connected between the two fixed bases 1. A third gear 15 is meshed with the second gear 13. A secondary gear shaft is pierced through the center of the third gear 15 through a bearing. The secondary gear shaft is rotatably connected between the two fixed bases 1. Two rotation grooves 16 for the primary gear shaft 14 and the secondary gear shaft to rotate are provided on the opposite sides of the two fixed bases 1. Multiple fourth gears 17 are arranged at equal intervals on the secondary gear shaft, and the adjacent fourth gears 17 are limited by lubricating sleeves 18. A transmission shaft 19 is rotatably connected in the fixed base 1. The transmission shaft 19 is rotatably connected in the shaft hole 20 reserved on the fixed base 1.

[0037] A rotating shaft 21 located below the transmission shaft 19 is also rotatably connected between the two fixed bases 1. Through holes are penetrated at the same position of the two fixed bases 1. A protrusion 22 matching the C-shaped groove is provided in the through hole. A C-shaped groove is provided on one side of the rotating shaft 21. The angle between the two side walls of the C-shaped groove is 90°. With the help of the protrusion 22 and the C-shaped groove, the rotating shaft 21 can be limited to rotate within 0-90°, and the locking work can be completed more easily at the unfolding and folding limit positions. A fixed plate 23 is integrally formed on one side of the rotating shaft 21. The bottom of the fixed plate 23 is bolted to the aileron docking beam 24. A plurality of second limit blocks 25 are distributed in an array in the middle section of the rotating shaft 21. A trumpet hole for clamping the first limit block 6 is formed between adjacent second limit blocks 25. The trumpet shape is conducive to increasing the contact area with the locking slider 5, and has a stronger anti-interference ability. At the same time, it is also helpful for the second limit block 25 to be quickly inserted into the locking slider 5, so as to quickly complete the locking work. The upper surface of the fixing plate 23 is connected with a connecting shaft block 26 by screws, and a plurality of slideways 27 are provided on the connecting shaft block 26. A folding driving member 28 is slidably connected in each slideway 27. Each folding driving member 28 is connected to the transmission shaft 19 by a lubricating sleeve 18, and adjacent folding driving members 28 are limited by the lubricating sleeve 18. In this embodiment, each folding driving member 28 is in a "tadpole shape", and a 1 / 4 driven tooth 29 is integrally formed at the head of the folding driving member 28, and the driven tooth 29 is meshed with the fourth gear 17. A hole is provided in the middle of the folding driving member 28 for the lubricating sleeve 18 and the transmission shaft 19 to pass through, and a symmetrically arranged cylindrical slider is provided at the tail of the folding driving member 28, and the cylindrical slider is slidably connected in the corresponding slideway 27, and the cylindrical slider reduces the contact area with the slideway 27 inside the connecting shaft block 26, reduces the friction, and thus improves the working efficiency. A circular opening matching with the head of the folding drive member 28 is formed at the front end of the connecting shaft block 26, and a plurality of rectangular slide grooves 4 are formed in the circular opening to be slidably connected with the folding drive member 28 during the unfolding process.

[0038] The working process of this embodiment:

[0039] When the wing is folded, the electric cylinder 8 is first turned on. After the electric cylinder 8 is turned on, it pushes the end of the transmission crank 7 around the shaft pin in the middle. After the transmission crank 7 rotates, it can drive the locking slider 5 to slide in the slide groove 4. After the locking slider 5 moves, the first limit block 6 slides out of the horn hole of the rotating shaft 21, thereby completing the unlocking of the wing. Subsequently, the motor 11 is energized and starts working. After the motor 11 rotates, it drives the first gear 12. After the first gear 12 rotates, it drives the second gear 13. The second gear 13 drives the third gear 15 and the secondary gear shaft to rotate. After the secondary gear shaft rotates, it can drive the fourth gear 17 to rotate. Finally, the fourth gear 17 drives the folding drive member 28 to rotate through the driven teeth 29 on the folding drive member 28. The cylindrical slider at the end of the folding drive member 28 slides in the slideway 27 of the connecting shaft block 26, thereby driving the rotating shaft 21 to rotate. When the maximum rotation angle is reached, the controller controls the motor 11 to stop operating. Subsequently, the electric cylinder 8 is powered on and the push rod is retracted, so that the locking slider 5 slides to a position that cooperates with the rotating shaft 21 to complete the locking work.

[0040] When the wing is unfolded, the electric cylinder 8 is first turned on. After the electric cylinder 8 is turned on, the end of the transmission crank 7 is pushed around the shaft pin in the middle. After the transmission crank 7 rotates, it can drive the locking slider 5 to slide in the slide groove 4. After the locking slider 5 moves, the first limit block 6 slides into the second limit block 25 of the rotating shaft 21, thereby completing the wing unlocking. Subsequently, the motor 11 is powered on and starts working. The motor 11 rotates in the opposite direction to the folding process. The unfolding process is opposite to the wing folding process. When the maximum rotation angle is reached, the controller controls the motor 11 to cut off the power and stop operating. Subsequently, the electric cylinder 8 is powered on and the push rod is retracted, so that the locking slider 5 slides to a position that cooperates with the rotating shaft 21, completing the locking work.

[0041] The above are only embodiments of the present invention, and the common knowledge such as the known specific structures and / or characteristics in the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A wing deformation folding transmission locking mechanism, characterized in that: The lockhole that is formed on the two ends of the sprocket wheel is formed on the top of the two wheels, and the two wheels are connected with the locking cam on the top of the two wheels.

2. A wing deformation folding transmission locking mechanism according to claim 1, characterized in that: The driving assembly includes an electric cylinder arranged on the main wing docking beam, the electric cylinder is rotatably connected to a transmission crank through a pin shaft, the middle part of the transmission crank is rotatably connected to the main wing docking beam, and the other end of the transmission crank is rotatably connected to a locking slider.

3. A wing deformation folding transmission locking mechanism according to claim 2, characterized in that: The rotating assembly includes a motor arranged on the main wing docking beam, a first gear is arranged on the output shaft of the motor, the first gear is meshed with a second gear, the second gear is rotatably connected to the fixed base through a primary gear shaft, the second gear is meshed with a third gear, a secondary gear shaft rotatably connected between two fixed bases is passed through the third gear, a fourth gear is arranged on the secondary gear shaft, a driven gear is meshed on the fourth gear, and the driven gear is arranged on the folding drive member.

4. A wing deformation folding transmission locking mechanism according to claim 3, characterized in that: A C-shaped groove is provided on one side of the rotating shaft, and the angle between the two side walls of the C-shaped groove is 90 degrees. A through hole is penetrated through each of the fixed bases, and a protrusion matching the C-shaped groove is provided in the through hole.

5. The wing deformation folding transmission locking mechanism according to claim 3, characterized in that: Each of the folding driving members is tadpole-shaped, and has a symmetrically arranged cylindrical slider at the tail of the folding driving member. The cylindrical slider is slidably connected with a connecting shaft block, and the connecting shaft block is arranged on the aileron docking beam. The driven gear is integrally formed at the head of the folding driving member.

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