A vortex generator with adjustable spacing and angle

Abstract

The application discloses a vortex generator with adjustable interval and angle, and relates to the technical field of vortex generators.The vortex generator with adjustable interval and angle comprises a plurality of vortex generator units, an interval adjusting assembly and an angle adjusting assembly;each vortex generator unit comprises a flow guide plate, a support rod, an interval adjusting sliding block and a rotary rocker arm;one end of each support rod is connected and fixed with the corresponding flow guide plate, and the other end penetrates through a through hole and is rotationally connected with the corresponding interval adjusting sliding block;one end of the rotary rocker arm is connected and fixed with the corresponding support rod;the interval adjusting assembly can drive the plurality of interval adjusting sliding blocks to slide so as to adjust the interval between two adjacent flow guide plates;and the angle adjusting assembly can drive the plurality of rotary rocker arms to rotate around the axial direction of the support rod so as to adjust the angle of the flow guide plate.The application can automatically adjust the interval and angle of the vortex generator, so that the vortex generator can be adapted to more complex air flow environments and the energy efficiency ratio can be optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of vortex generators, and in particular to a vortex generator with adjustable spacing and angle. Background Art

[0002] Vortex generators are commonly used in aerodynamics. They create vortices, or eddies, in fluid flow, altering the fluid's flow pattern to improve its aerodynamic properties. In aircraft design, vortex generators are often placed on wing surfaces to enhance airflow adhesion, prevent airflow separation, reduce drag, and delay flow separation, thereby increasing lift and flight stability.

[0003] Currently, research on vortex generators has evolved from fixed structures to adjustable designs. Traditional fixed vortex generators are passive drag reducers and are generally designed for the main operating conditions of aircraft. They cannot be adaptively adjusted, and therefore, under certain operating conditions, they may increase local surface resistance. The design of adjustable vortex generators is divided into passive adjustment and active adjustment. Among them, passive adjustment, such as angle adjustment driven by memory alloy springs and dynamic sensing-drive integrated design driven by piezoelectric ceramics, can only adjust a single parameter such as angle or height, and cannot coordinate the dynamic matching of spacing and angle. Active adjustment, such as the retractable vortex generators in wind turbine blades, uses piston-sensing pressure to adaptively adjust the height. This adjustment method relies on a complex sensing system and is also unable to coordinate the dynamic matching of spacing and angle.

[0004] In view of the above problems in the prior art, those skilled in the art are in urgent need of a vortex generator with adjustable spacing and angle. Summary of the Invention

[0005] The purpose of the present invention is to provide a vortex generator with adjustable spacing and angle to solve the problems existing in the above-mentioned prior art. It can autonomously adjust the spacing and angle of the vortex generator to adapt to more complex airflow environments and optimize the energy efficiency ratio.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a vortex generator with adjustable spacing and angle, comprising a plurality of vortex generator units, a spacing adjustment assembly and an angle adjustment assembly; each of the vortex generator units comprises a guide plate, a support rod, a spacing adjustment slider and a rotating rocker arm, the guide plate is located on the outside of the wing, the spacing adjustment slider and the rotating rocker arm are both located inside the wing, and a through hole for the support rod to pass through is opened on the surface of the wing; one end of the plurality of support rods is connected and fixed to the corresponding guide plate, and the other end passes through the through hole and is rotatably connected to the corresponding spacing adjustment slider; one end of the rotating rocker arm is connected and fixed to the corresponding support rod; the spacing adjustment assembly can drive the plurality of spacing adjustment sliders to slide to adjust the spacing between two adjacent guide plates; the angle adjustment assembly can drive the plurality of rotating rocker arms to rotate around the axial direction of the corresponding support rod to adjust the angle of the guide plate.

[0008] In some embodiments, the spacing adjustment assembly includes an end plate, a slide rail, a first drive device and a connecting rod assembly; the two end plates are arranged opposite to each other, and two parallel slide rails are provided between the two end plates; each of the spacing adjustment sliders is slidably connected to the two slide rails, and each of the spacing adjustment sliders is rotatably connected to the connecting rod assembly; the first drive device can drive one of the spacing adjustment sliders to slide along the slide rail and can drive the remaining multiple spacing adjustment sliders to slide synchronously through the connecting rod assembly to adjust the distance between two adjacent spacing adjustment sliders.

[0009] In some embodiments, the connecting rod assembly includes a first end connecting rod, a plurality of intermediate connecting rods and a second end connecting rod; one end of the first end connecting rod is rotatably connected to the corresponding end plate, the middle parts of the plurality of intermediate connecting rods are rotatably connected to the plurality of spacing adjustment sliders in a one-to-one correspondence, and one end of the second end connecting rod is rotatably connected to the corresponding spacing adjustment slider; the other end of the first end connecting rod, the two ends of the plurality of intermediate connecting rods and the other end of the second end connecting rod are hinged in sequence end to end.

[0010] In some embodiments, the first driving device includes a first linear servo and a second linear servo; the first linear servo and the second linear servo are arranged in parallel and are fixedly connected to the corresponding end plates, and the driving shafts of the first linear servo and the second linear servo are both connected to the corresponding spacing adjustment sliders through joint bearings; and the first linear servo and / or the second linear servo can drive the corresponding spacing adjustment sliders to slide along the slide rail.

[0011] In some embodiments, the angle adjustment assembly includes a second drive device, an angle adjustment rod, a slider, a central rotating member and a pull rod; the two ends of the two angle adjustment rods are respectively slidably connected to the top of the corresponding end plate through the slider, and the central rotating member is rotatably connected to the corresponding end plate through a second bearing; a spherical groove is provided on each of the angle adjustment rods, and the other end of the rotating rocker arm is a spherical structure; the multiple vortex generator units are divided into two groups, the spherical structures of the multiple rotating rocker arms of one group are slidably and rotatably connected to the spherical groove of one angle adjustment rod, and the spherical structures of the multiple rotating rocker arms of the other group are slidably and rotatably connected to the spherical groove of the other angle adjustment rod; one end of the central rotating member is transmission-connected to the second drive device, and the other end is respectively connected to the corresponding slider through the two pull rods; the rotation of the central rotating member can drive the two angle adjustment rods to move in relative or opposite directions and drive the guide plates of the two groups of vortex generator unit groups to rotate in opposite directions.

[0012] In some embodiments, the second driving device includes a first rotary servo and a second rotary servo; the output ends of the first rotary servo and the second rotary servo are connected to one end of the central rotating member through gear meshing transmission, and the first rotary servo and / or the rotary servo can drive the central rotating member to rotate.

[0013] In some embodiments, the rotating rocker arm includes a first split rocker arm, a second split rocker arm, a protective pin and a connecting pin; one end of the first split rocker arm and the second split rocker arm are plugged in, and the first split rocker arm and the second split rocker arm are connected by the protective pin and the connecting pin; the axial diameter of the protective pin is smaller than the axial diameter of the connecting pin.

[0014] In some embodiments, two hinged parts are provided at the other end of the central rotating member, and the two hinged parts are symmetrically arranged about the axis of the central rotating member; the sliders corresponding to the two angle adjustment rods extend vertically downward to form extended ends; the two hinged parts are respectively hinged to one end of the two pull rods, and the other ends of the two pull rods are hinged to the extended ends of the corresponding sliders.

[0015] In some embodiments, the spherical chute is an elongated chute, the inner wall of the spherical chute is arc-shaped and adapted to the spherical structure; the plurality of vortex generator units are arranged along the span direction of the wing; the through hole is elongated and extends along the span direction of the wing.

[0016] In some embodiments, a snap-in step is provided at the bottom end of the support rod, a snap-in groove is provided at the spacing adjustment slider, a first bearing is installed in the snap-in groove, the snap-in step is adapted to snap-in with the snap-in groove and is rotatably connected via the first bearing.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] The present invention has an adjustable spacing and angle vortex generator, in which the guide plates of the vortex generator unit are connected to the spacing adjustment slider via a support rod, and the spacing adjustment component can drive the multiple spacing adjustment sliders to slide, thereby driving the multiple guide plates to move and adjusting the spacing between the multiple guide plates; and the rotating rocker arm is connected to the support rod, and when the angle adjustment component is used to drive the rotating rocker arm to rotate, the rotating rocker arm can drive the guide plates to rotate via the support rod, thereby adjusting the angle between the guide plates; thus, the present invention can realize autonomous adjustment of the spacing and angle of the vortex generator, so that it can adapt to more complex airflow environments and optimize the energy efficiency ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the installation of vortex generators with adjustable spacing and angles on a wing in some embodiments of the present invention;

[0021] Figure 2 Schematic diagram of the structure of the vortex generator unit in some embodiments of the present invention;

[0022] Figure 3 Schematic diagram of the connection between the support rod and the spacing adjustment slider in some embodiments of the present invention;

[0023] Figure 4 This is one of the schematic diagrams of the connection between the spacing adjustment assembly and the spacing adjustment slider in some embodiments of the present invention;

[0024] Figure 5 This is a second schematic diagram of the connection between the spacing adjustment assembly and the spacing adjustment slider in some embodiments of the present invention;

[0025] Figure 6 Schematic diagram of the connection between the second end connecting rod, the middle connecting rod and the spacing adjustment slider in some embodiments of the present invention;

[0026] Figure 7Schematic diagram of the connection between the first driving device and the spacing adjustment slider in some embodiments of the present invention;

[0027] Figure 8 Schematic diagram of the connection between the spherical bearing and the spherical bushing in some embodiments of the present invention;

[0028] Figure 9 Schematic diagram of the connection between the angle adjustment rod and the end plate in some embodiments of the present invention;

[0029] Figure 10 Schematic diagram of the connection between the central rotating member, the pull rod and the slider in some embodiments of the present invention;

[0030] Figure 11 Schematic diagram of the connection between the central rotating member and the end plate in some embodiments of the present invention;

[0031] Figure 12 One of the schematic diagrams of adjusting the spacing of vortex generators with adjustable spacing and angle in some embodiments of the present invention;

[0032] Figure 13 This is a second schematic diagram of adjusting the spacing of vortex generators with adjustable spacing and angle in some embodiments of the present invention;

[0033] Figure 14 One of the schematic diagrams of angle adjustment of vortex generators with adjustable spacing and angle in some embodiments of the present invention;

[0034] Figure 15 This is a second schematic diagram of angle adjustment of vortex generators with adjustable spacing and angles in some embodiments of the present invention.

[0035] In the figure: 1-first vortex generator unit; 2-second vortex generator unit; 3-through hole; 4-support rod; 5-spacing adjustment slider; 6-rotating rocker arm; 7-protection pin; 8-connecting pin; 9-first bearing; 10-active slider; 11-first end plate; 12-second end plate; 13-slide rail; 14-first linear servo; 15-second linear servo; 16-second end connecting rod; 17-middle connecting rod; 18-joint bushing; 19-joint bearing; 20-first angle adjustment rod; 21-second angle adjustment rod; 22-first rotary servo; 23-second rotary servo; 24-pull rod; 25-center rotating part; 26-second bearing. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The purpose of the present invention is to provide a vortex generator with adjustable spacing and angle to solve the problems existing in the prior art. The spacing and angle of the vortex generator can be adjusted independently to adapt to more complex airflow environments and optimize the energy efficiency ratio.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] The present invention provides a vortex generator with adjustable spacing and angle, such as Figures 1 to 15 As shown, it includes multiple vortex generator units, spacing adjustment components and angle adjustment components; wherein, each vortex generator unit includes a deflector, a support rod 4, a spacing adjustment slider 5 and a rotating rocker arm 6, the deflector is located on the outside of the wing, the spacing adjustment slider 5 and the rotating rocker arm 6 are both located inside the wing, and a through hole 3 for the support rod 4 to pass through is opened on the wing surface. Figure 1 In the figure, the via hole 3 is in the shape of an elongated strip.

[0040] Figure 2 In the figure, one end of multiple support rods 4 is connected and fixed with the corresponding guide plate, and the other end passes through the through hole 3 and is rotatably connected with the corresponding spacing adjustment slider 5; one end of the rotating rocker arm 6 is connected and fixed with the corresponding support rod 4.

[0041] The spacing adjustment component is used to drive multiple spacing adjustment sliders 5 to slide to adjust the spacing between two adjacent guide plates; and the angle adjustment component is used to drive multiple rotating rocker arms 6 to rotate axially around the support rod 4 to adjust the angle of the guide plate.

[0042] In some embodiments, the spacing adjustment assembly includes an end plate, a slide rail 13, a first drive device and a connecting rod assembly; wherein, the end plate includes a first end plate 11 and a second end plate 12 that are relatively and vertically arranged, and two horizontally parallel slide rails 13 are arranged between the first end plate 11 and the second end plate 12. Two guide holes are provided on the spacing adjustment slider 5, which is slidably connected to the two slide rails 13 through the two guide holes. Since the slide rail 13 extends along the span direction of the wing, it is ensured that the spacing adjustment slider 5 can only move along the span direction of the wing.

[0043] In addition, multiple spacing adjustment sliders 5 are all rotatably connected to the connecting rod assembly; the first driving device can drive one spacing adjustment slider 5 among the multiple spacing adjustment sliders 5 to slide along the slide rail 13 and can drive all the remaining spacing adjustment sliders 5 to slide synchronously through the connecting rod assembly to adjust the distance between two adjacent spacing adjustment sliders 5.

[0044] It should be noted that the first end plate 11 of the present invention is a head end plate, and the second end plate 12 is a tail end plate, and the first end plate 11 and the second end plate 12 are usually integrated with the wing rib.

[0045] In some embodiments, the connecting rod assembly includes a first end connecting rod, an intermediate connecting rod 17 and a second end connecting rod 16, one end of the first end connecting rod is rotatably connected to the corresponding end plate, the middle parts of the multiple intermediate connecting rods 17 are rotatably connected to the corresponding multiple spacing adjustment sliders 5 one by one, and one end of the second end connecting rod 16 is rotatably connected to the corresponding spacing adjustment slider 5; the other end of the first end connecting rod, the two ends of the multiple intermediate connecting rods 17 and the other end of the second end connecting rod 16 are hingedly arranged in sequence end to end.

[0046] like Figures 4 to 6 As shown, one end of the first end link is rotatably connected to the connection portion on the first end plate 11 via a pin. Multiple spacing adjustment sliders 5 are connected via an intermediate link 17 and a second end link 16. Adjacent links are connected via a pin, allowing them to rotate about the pin. Furthermore, the center of the intermediate link 17 and one end of the second end link 16 are connected to the bottom of the spacing adjustment slider 5, allowing the links to rotate about the bottom of the spacing adjustment slider 5 to change their angle. The link assembly can drive the multiple spacing adjustment sliders 5 to slide synchronously, ensuring the same speed and displacement, thereby achieving the function of uniformly increasing or decreasing the spacing between the multiple vortex generator units.

[0047] In some embodiments, the first driving device includes a first linear servo 14 and a second linear servo 15; the first linear servo 14 and the second linear servo 15 are arranged in parallel and fixedly connected to the corresponding end plates, and the driving ends of the first linear servo 14 and the second linear servo 15 are connected to the corresponding spacing adjustment slider 5 through a joint bearing 19, and the first linear servo 14 and / or the second linear servo 15 can drive the corresponding spacing adjustment slider 5 to slide along the slide rail 13.

[0048] like Figure 4 、 Figure 5 、 Figure 7 and Figure 8As shown, the multiple spacing adjustment sliders 5 include an active slider 10 and the remaining driven sliders. The first linear servo 14 and the second linear servo 15 are both fixed on the first end plate 11 and connected to the active slider 10 to achieve dual redundancy of driving power. If a single servo fails, the other servo can still ensure the normal operation of the system. Figure 7 and Figure 8 In the figure, one end of the driving shaft of the first linear servo 14 and the second linear servo 15 is a joint bearing 19, and two joint bushings 18 are provided on the active slider 10. The two joint bearings 19 are adapted and connected with the two joint bushings 18 in a one-to-one correspondence.

[0049] In some embodiments, the angle adjustment assembly includes a second drive device, an angle adjustment rod, a slider, a central rotating member 25 and a pull rod 24; wherein the angle adjustment rod includes a first angle adjustment rod 20 and a second angle adjustment rod 21 arranged horizontally and parallel to each other, and sliders are provided at both ends of the length direction of the first angle adjustment rod 20 and the second angle adjustment rod 21, and the multiple sliders are respectively slidably connected to the top ends of the corresponding first end plate 11 and the second end plate 12; the central rotating member 25 is rotatably connected to the corresponding end plate through a second bearing 26.

[0050] The first angle adjustment rod 20 and the second angle adjustment rod 21 are both provided with a spherical groove, and the ends of the plurality of rotating rocker arms 6 away from the support rod 4 are all spherical structures, and the spherical structures are adapted to the spherical grooves; the plurality of vortex generator units are divided into two groups, such as Figure 1 As shown, a plurality of vortex generator units that are aligned with the first vortex generator unit 1 at an angle are defined as a first vortex generator unit group, and a plurality of vortex generator units that are aligned with the second vortex generator unit 2 at an angle are defined as a second vortex generator unit group.

[0051] The spherical structures of the multiple rotating rocker arms 6 of the first vortex generator unit group are slidably and rotatably connected to the spherical slot of one angle adjustment rod. The spherical structures of the multiple rotating rocker arms 6 of the second vortex generator unit group are slidably and rotatably connected to the spherical slot of the other angle adjustment rod. The spherical slots are elongated, with curved inner walls that fit the spherical structures.

[0052] One end of the central rotating member 25 is connected to the second driving device, and the other end is connected to the corresponding slider through two pull rods 24; the rotation of the central rotating member 25 can drive the two angle adjustment rods to move in relative or opposite directions and drive the guide plates of the two groups of vortex generator units to rotate in opposite directions.

[0053] In some embodiments, the second driving device includes a first rotary servo 22 and a second rotary servo 23; the output ends of the first rotary servo 22 and the second rotary servo 23 are connected to one end of the central rotating member 25 through gear meshing transmission, and the first rotary servo 22 and / or the second rotary servo 23 can drive the central rotating member 25 to rotate.

[0054] like Figures 9 to 11 As shown, one end of the central rotating part 25 is a gear, the other end is a rocker arm, and the middle is a stepped cylindrical step; the first angle adjustment rod 20 and the second angle adjustment rod 21 are both connected to the first end plate 11 and the second end plate 12. The first end plate 11 and the second end plate 12 are provided with guide rails and cooperate with the guide rail grooves of the corresponding sliders to ensure that the sliders can only move along the guide rails; the central rotating part 25 is rotatably connected to the second end plate 12 through a deep groove ball bearing. The stepped cylindrical step in the middle of the central rotating part 25 ensures that the central rotating part 25 can rotate relative to the second end plate 12 and cannot move in the axial direction; the output ends of the first rotary servo 22 and the second rotary servo 23 are both provided with gears, which are connected through gear meshing and can respectively drive the central rotating part 25 to rotate, thereby realizing dual redundancy of driving power. If a single servo fails, the other servo can still ensure the normal operation of the system.

[0055] In some embodiments, the rotating rocker arm 6 includes a first split rocker arm, a second split rocker arm, a protective pin 7 and a connecting pin 8; one end of the first split rocker arm and the second split rocker arm are plugged in and the two are connected by the protective pin 7 and the connecting pin 8; the axial diameter of the protective pin 7 is smaller than the axial diameter of the connecting pin 8; thus, when a vortex generator unit is stuck and cannot rotate, as the rotational torque increases to a predetermined value, the protective pin 7 will break, thereby avoiding affecting the movement of other vortex generator units.

[0056] In some embodiments, such as Figure 10 As shown, the other end of the central rotating member 25 is provided with two hinged parts, and the two hinged parts are symmetrically arranged about the axis of the central rotating member 25; the sliders corresponding to the two angle adjustment rods extend vertically downward to form extended ends; the two hinged parts are respectively hinged to one end of the two pull rods 24, and the other ends of the two pull rods 24 are hinged to the extended ends of the corresponding sliders.

[0057] In some embodiments, a plurality of vortex generator units are arranged along the span direction of the wing; the through hole 3 is in a long strip shape and extends along the span direction of the wing.

[0058] In some embodiments, such as Figure 3 As shown, the bottom end of the support rod 4 is provided with a snap-in step, the spacing adjustment slider 5 is provided with a snap-in groove, a first bearing 9 is installed in the snap-in groove, the snap-in step and the snap-in groove are adapted to snap-in and are rotatably connected through the first bearing 9.

[0059] like Figure 12 and Figure 13 As shown, the working principle of the present invention for adjusting the spacing of the vortex generator is as follows:

[0060] Driving the first and second linear actuators 14, 15 to extend moves the active slider 10 away from the first end plate 11, causing the first end connecting rod connected to the first end plate 11 to rotate, driving the other connecting rods to move. Because the spacing adjustment sliders 5 each have guide holes that restrict their movement to the spanwise direction, the remaining driven sliders also move the same spanwise distance as the active slider 10, thereby achieving the function of uniformly increasing the spacing between the vortex generators while maintaining the same included angle. When the first and second linear actuators 14, 15 are driven to shorten, the movement is reversed, and the uniform spacing between the vortex generators decreases.

[0061] like Figure 14 and Figure 15 As shown, the working principle of the present invention for achieving angle adjustment of the vortex generator is as follows:

[0062] The first and second rotary servos 22 and 23 rotate in the same direction. When the gear at one end of the central rotating member 25 drives the rocker arm (i.e., the hinged portion) at the other end to rotate counterclockwise, the pull rod 24 also moves. Because the first and second angle adjustment rods 20 and 21 are constrained by the guide rails on the first and second end plates 11 and 12 and can only move along the rails, the pull rod 24 drives the first and second angle adjustment rods 20 and 21 toward each other, reducing the distance between them. Simultaneously, the rotary rocker arms 6 on the vortex generator are divided into two groups and, along with the movement of the first and second angle adjustment rods 20 and 21, drive the vortex generator to rotate, increasing the angle between adjacent guide plates. When the rotation direction of the first rotary servo 22 and the second rotary servo 23 is changed, the gear at one end of the central rotating member 25 drives the rocker arm at the other end to rotate clockwise. Driven by the pull rod 24, the first angle adjustment rod 20 and the second angle adjustment rod 21 move away from each other, the distance between them increases, and the angle between the two adjacent guide plates decreases.

[0063] The effects of the vortex generator with adjustable spacing and angle of the present invention are:

[0064] The system features dual-redundancy powertrain design for high reliability. This solution significantly improves system reliability through a dual-redundancy powertrain design: The first and second linear servos 14 and 15, as well as the first and second rotary servos 22 and 23, are all redundantly configured. If any servo fails, the remaining servo can still independently adjust the vortex generator spacing or angle. This redundancy mechanism, drawing on high-reliability standards in the aviation industry, effectively addresses extreme operating conditions or sudden equipment failures, ensuring the continued operation of critical aerodynamic control functions.

[0065] Strong adaptability to complex flow field conditions. By synchronously adjusting the spacing and angle of the vortex generators, the system can dynamically adapt to different airflow environment requirements. For example, during high angle-of-attack flight, the vortex generator angle is increased to enhance vortex intensity and delay airflow separation; during low-drag cruising, the spacing is reduced to reduce energy consumption. The mechanical linkage structure converts a single drive input into precise coordinated motion at multiple nodes, meeting the local adjustment requirements for spanwise airflow differences, such as changes in boundary layer thickness, while also achieving global parameter optimization, covering a wide range of operating conditions from low to high speeds.

[0066] Strong fault tolerance. The system uses mechanical protection mechanisms and modular design to reduce the impact of local failures on the overall system: a protective pin 7 is set on the rotating node of the vortex generator, which breaks first in the event of jamming to cut off torque transmission and avoid chain damage.

[0067] High energy efficiency. The system achieves efficient energy utilization through dynamic parameter optimization and low-drag design. In areas of airflow separation risk, the density and angle of the vortex generators are increased to improve energy injection efficiency, similar to active flow control. In stable flow areas, the spacing or angle is adjusted to reduce added drag. Furthermore, the low failure rate of redundant drives and the low energy consumption of mechanical transmission further reduce maintenance and operating costs, optimizing the overall balance between aerodynamic performance and energy consumption, meeting the high energy efficiency requirements of modern aircraft and ground vehicles.

[0068] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A vortex generator with adjustable spacing and angle, characterized in that: It includes a plurality of vortex generator units, a spacing adjustment component and an angle adjustment component; Each of the vortex generator units includes a deflector, a support rod, a spacing adjustment slider and a rotating rocker arm, wherein the deflector is located on the outside of the wing, the spacing adjustment slider and the rotating rocker arm are both located inside the wing, and a through hole is opened on the surface of the wing for the support rod to pass through; One end of each of the support rods is fixedly connected to the corresponding guide plate, and the other end passes through the through hole and is rotatably connected to the corresponding spacing adjustment slider; one end of the rotating rocker arm is fixedly connected to the corresponding support rod; The spacing adjustment assembly can drive the plurality of spacing adjustment sliders to slide to adjust the spacing between two adjacent deflectors; the angle adjustment assembly can drive the plurality of rotating rocker arms to rotate around the axial direction of the corresponding support rod to adjust the angle of the deflector; The spacing adjustment assembly includes end plates, and the two end plates are arranged opposite to each other; The angle adjustment assembly includes a second driving device, an angle adjustment rod, a slider, a central rotating member and a pull rod; The two ends of the two angle adjustment rods are respectively slidably connected to the top ends of the corresponding end plates through the sliders, and the central rotating member is rotatably connected to the corresponding end plates through the second bearing; Each of the angle adjustment rods is provided with a spherical groove, and the other end of the rotating rocker arm is a spherical structure; the multiple vortex generator units are divided into two groups, the spherical structures of the multiple rotating rocker arms in one group are slidably and rotatably connected to the spherical groove of one angle adjustment rod, and the spherical structures of the multiple rotating rocker arms in the other group are slidably and rotatably connected to the spherical groove of the other angle adjustment rod; One end of the central rotating member is transmission-connected to the second driving device, and the other end is connected to the corresponding slider through the two pull rods; the rotation of the central rotating member can drive the two angle adjustment rods to move in relative or opposite directions and drive the guide plates of the two groups of vortex generator units to rotate in opposite directions.

2. The vortex generator with adjustable spacing and angle according to claim 1, characterized in that: The spacing adjustment assembly further includes a slide rail, a first drive device and a connecting rod assembly; Two parallel slide rails are provided between the two end plates; Each of the spacing adjustment sliders is slidably connected to the two slide rails, and each of the spacing adjustment sliders is rotationally connected to the connecting rod assembly; The first driving device can drive one of the distance adjusting sliders to slide along the slide rail and can drive the remaining multiple distance adjusting sliders to slide synchronously through the connecting rod assembly to adjust the distance between two adjacent distance adjusting sliders.

3. The vortex generator with adjustable spacing and angle according to claim 2, characterized in that: The connecting rod assembly includes a first end connecting rod, a plurality of intermediate connecting rods, and a second end connecting rod; One end of the first end connecting rod is rotatably connected to the corresponding end plate, the middle portions of the plurality of intermediate connecting rods are rotatably connected to the plurality of spacing adjustment sliders in a one-to-one correspondence, and one end of the second end connecting rod is rotatably connected to the corresponding spacing adjustment slider; The other end of the first end connecting rod, the two ends of the plurality of intermediate connecting rods and the other end of the second end connecting rod are hinged in sequence end to end.

4. The vortex generator with adjustable spacing and angle according to claim 2, characterized in that: The first driving device includes a first linear servo and a second linear servo; The first linear servo and the second linear servo are arranged in parallel and are fixedly connected to the corresponding end plates. The drive shafts of the first linear servo and the second linear servo are both connected to the corresponding spacing adjustment sliders via joint bearings. Furthermore, the first linear servo and / or the second linear servo can drive the corresponding spacing adjustment slider to slide along the slide rail.

5. The vortex generator with adjustable spacing and angle according to claim 1, characterized in that: The second driving device includes a first rotary steering gear and a second rotary steering gear; The output ends of the first rotary servo and the second rotary servo are both connected to one end of the central rotating member via gear meshing transmission, and the first rotary servo and / or the rotary servo can drive the central rotating member to rotate.

6. The vortex generator with adjustable spacing and angle according to claim 1, characterized in that: The rotating rocker arm includes a first split rocker arm, a second split rocker arm, a protection pin and a connecting pin; One end of the first split rocker arm and the second split rocker arm are plugged in, and the first split rocker arm and the second split rocker arm are connected by the protective pin and the connecting pin; the axial diameter of the protective pin is smaller than the axial diameter of the connecting pin.

7. The vortex generator with adjustable spacing and angle according to claim 1, characterized in that: The other end of the central rotating member is provided with two hinged parts, and the two hinged parts are symmetrically arranged about the axis of the central rotating member; The sliders corresponding to the two angle adjustment rods both extend vertically downward to form extension ends; The two hinged parts are hinged to one end of the two pull rods respectively, and the other ends of the two pull rods are hinged to the extended ends of the corresponding sliders.

8. The vortex generator with adjustable spacing and angle according to claim 1, characterized in that: The spherical chute is a long strip chute, and the inner wall of the spherical chute is arc-shaped and adapted to the spherical structure; The plurality of vortex generator units are arranged along the span direction of the wing; the through holes are in the shape of long strips and extend along the span direction of the wing.

9. The vortex generator with adjustable spacing and angle according to claim 1, characterized in that: The bottom end of the support rod is provided with a clamping step, the spacing adjustment slider is provided with a clamping groove, a first bearing is installed in the clamping groove, the clamping step is adapted to be clamped with the clamping groove and is rotatably connected through the first bearing.

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