Variable-space-angle wing trailing edge skin experimental equipment
By designing the variable space angle wing trailing edge skinning experimental equipment, using arc-shaped tracks and clamping devices to simulate the skin bending angle, the problems of poor experimental operability, high cost and long cycle in the prior art are solved, and the problem of poor experiments is realized. Efficient and convenient experimental operations and cost savings.
Patent Information
- Application Number
- CN202411617002.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-02-18
AI Technical Summary
In the prior art, the experimental equipment for the trailing edge skin of the wing has problems such as poor experimental operability, high experimental cost and long experimental period, and it is impossible to effectively simulate the trailing edge of the wing under different flight states.
Design a variable spatial angle wing trailing edge skinning experimental equipment. By setting an arc-shaped track with a movable table on the base and setting a clamping device on the fixed table and the movable table, the movable table is adjusted by sliding the movable table in the arc The position on the orbit simulates the angle of the skin bending during flight.
It realizes the simulation of multiple fold angles with one experimental equipment, improves the operability and efficiency of the experiment, saves experimental costs, reduces the R&D investment of enterprises, and solves the poor operability, high cost and long cycles of experiments in the existing technology. The problem.
Smart Images
Figure CN119469713A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of aerospace technology, and in particular relates to a variable space angle wing trailing edge skin experimental device. Background Art
[0002] Morphing aircraft adapt to different flight environments and improve aerodynamic efficiency by changing their structure or wing shape. Traditional high-lift devices such as flaps have limitations, so the concept of bionic flexible wings has been proposed, which can change the shape of the wing according to flight conditions to improve performance. Morphing wings can increase lift, improve maneuverability, and reduce drag by changing their shape, thereby improving environmental performance. Morphing aircraft are mainly divided into three categories: plane deformation, out-of-plane deformation, and airfoil deformation. Among them, variable camber wings have attracted attention for their ability to directly respond to changes in flight conditions. Studies have shown that variable camber wings can alleviate airflow separation, reduce drag, control turbulence, increase lift, suppress flow separation, and reduce wing root bending moment and fuel consumption. A key challenge in the development of morphing wings is to create flexible skins, especially trailing edge variable camber skins, which are crucial to maintaining aerodynamic shape and accuracy during deformation.
[0003] In the traditional method, the skin is connected and fixed at a fixed angle and shape, which greatly limits the operability of the experiment. The fixed connection method limits the adjustment range of the experimental parameters and cannot simulate the actual situation of the wing trailing edge under different flight conditions, hindering research in fields such as aerodynamics and material mechanics, and affecting the optimization of wing design. In terms of cost, every time the angle is changed, a new test method needs to be designed and a new fixing fixture needs to be made, which increases the cost, prolongs the experimental cycle, and may lead to inconsistent experimental data, increasing the difficulty of data processing and analysis. In short, the existing test methods are seriously insufficient in terms of operability and cost, and are in urgent need of improvement and innovation. A variable spatial angle wing trailing edge skin test equipment is provided. Summary of the invention
[0004] In view of the problems of poor experimental operability, high experimental cost and long experimental cycle in the equipment used in the prior art for the wing trailing edge skin test, the present invention provides a variable spatial angle wing trailing edge skin test equipment, which can clamp the wing trailing edge skin directly between the two clamping devices by setting an arc track with a movable platform on the base, and setting a clamping device on the fixed platform and the movable platform, and simulate the bending angle of the skin during flight by sliding and adjusting the position of the movable platform on the arc track, so as to achieve the simulation of multiple bending angles with one experimental equipment, which not only improves the operability of the experiment, so that the operator can more conveniently adjust the bending angle of the skin and conduct experimental tests under different conditions, but also saves the experimental cost, avoids the situation of purchasing multiple equipment to simulate different bending angles, reduces the R&D investment of enterprises, and effectively solves the problems of poor experimental operability, high experimental cost and long experimental cycle in the equipment used in the prior art for the wing trailing edge skin test. The specific technical scheme is as follows:
[0005] A variable spatial angle wing trailing edge skin experimental equipment comprises a base, a fixed platform is fixedly installed on the upper surface of the base, an adjustment platform is slidably installed on the upper surface of the base, an arc track is integrally formed inside the adjustment platform, an angle mark is provided on the front surface of the arc track, a movable platform is slidably installed on the arc track, a walking mechanism is installed between the movable platform and the arc track, the walking mechanism is used to drive the movable platform to slide along the arc track, clamping devices are fixedly installed on the upper surface of the movable platform and the upper surface of the fixed platform, and an extension lifting device is fixedly installed on the side opposite to the two clamping devices.
[0006] In the above technical solution, a support platform is fixedly installed on the upper surface of the base, a hydraulic telescopic rod is fixedly installed inside the support platform, and the left end of the hydraulic telescopic rod is fixedly connected to the right surface of the adjustment platform;
[0007] In the above technical solution, the walking mechanism includes a walking motor and an outer arc-shaped rack, the walking motor is fixedly mounted on the right surface of the movable platform, and a gear is sleeved on the outer surface of the output shaft of the walking motor, the outer arc-shaped rack is fixedly mounted on the outer surface of the arc track, and the outer arc-shaped rack is meshed and connected with the gear;
[0008] In the above technical solution, a mounting groove is formed in the movable platform, and the walking mechanism includes a walking motor and an inner arc-shaped rack. The walking motor is fixedly installed in the mounting groove, and a gear is sleeved on the outer surface of the output shaft of the walking motor. The inner arc-shaped rack is fixedly installed on the inner surface of the arc track, and the inner arc-shaped rack is meshed with the gear.
[0009] In the above technical solution, the clamping devices all include L-shaped plates, two L-shaped plates are fixedly mounted on the upper surfaces of the fixed platform and the movable platform respectively, the upper surfaces of the L-shaped plates are all threaded with screws, the lower surfaces of the screws are fixedly mounted with I-type adapter blocks, the outer surfaces of the I-type adapter blocks are rotatably mounted with pressure plates, the upper surfaces of the pressure plates are symmetrically fixedly mounted with two directional rods, and the directional rods are slidably connected with the corresponding L-shaped plates;
[0010] In the above technical solution, two rubber pads are symmetrically fixedly installed on the lower surface of the pressing plate.
[0011] In the above technical solution, the extended lifting device includes a U-shaped plate, the U-shaped plate is fixedly installed on the side of the L-shaped plate away from the pressure plate, a movable plate is slidably installed in the U-shaped plate, an L-shaped support plate is fixedly installed at the rear end of the movable plate, the lifting surface of the L-shaped support plate is in the same horizontal plane as the upper surface of the fixed platform, and a locking bolt for tightening and fixing the movable plate is threadedly installed through the side of the U-shaped plate away from the L-shaped plate.
[0012] In the above technical solution, a limiting groove is formed through a side of the U-shaped plate away from the L-shaped plate, a stopper is fixedly mounted on the outer surface of the movable plate, and the stopper is slidably mounted in the limiting groove.
[0013] In the above technical solution, the angle marks are arranged equidistantly in the circumferential direction on the front surface of the arc track, and the angle marks are 90°, 80°, 70°, 60°, 50°, 40°, 30°, 20°, 10° and 0° respectively;
[0014] An infrared laser locator is embedded in the inner surface of the arc track and is arranged behind the ° mark.
[0015] In the above technical solution, an integrated controller is embedded and installed on the upper surface of the support platform, and the integrated controller is electrically connected to the hydraulic telescopic rod, the travel motor, and the infrared laser locator.
[0016] Compared with the prior art, the variable space angle wing trailing edge skin test equipment of the present invention has the following beneficial effects:
[0017] 1. The present invention arranges an arc track with a movable platform on the base, and arranges clamping devices on the fixed platform and the movable platform. The wing trailing edge skin can be clamped behind the two clamping devices, and the bending angle of the skin during flight can be simulated by sliding the position of the movable platform on the arc track, thereby realizing the simulation of multiple bending angles with one experimental equipment. This not only improves the operability of the experiment, allowing the operator to more conveniently adjust the bending angle of the skin and conduct experimental tests under different conditions, but also saves the experimental cost, avoids the situation of purchasing multiple equipment to simulate different bending angles, and reduces the company's R&D investment.
[0018] 2. The present invention provides an extended lifting device. When clamping a wider skin, the L-shaped support plate in the extended lifting device can be slid backward and adjusted as needed, and the L-shaped support plate is used to lift the lower surface of the skin. The L-shaped support plate can be used as an auxiliary support point, which is convenient for the operator to adjust it when clamping the skin. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.
[0020] Figure 2 It is a schematic diagram of the front structural view of the walking mechanism of the first embodiment of the present invention.
[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the clamping mechanism of the present invention.
[0022] Figure 4 It is a schematic diagram of the front view structure of the L-shaped plate of the present invention.
[0023] Figure 5 It is a schematic diagram of the structure of the extension lifting device of the present invention.
[0024] Figure 6 It is a schematic structural diagram of the second embodiment of the present invention.
[0025] Figure 7 It is a schematic diagram of the front structural view of the walking mechanism of the second embodiment of the present invention.
[0026] Figure 1-Figure 7Among them: 1. base; 11. limit plate; 2. fixed table; 3. adjustment table; 31. arc track; 311. angle mark; 312. infrared laser locator; 4. movable table; 41. mounting slot; 5. walking mechanism; 51. walking motor; 52. gear; 53. outer arc rack; 54. inner arc rack; 6. clamping device; 61. L-shaped plate; 62. screw; 63. pressure plate; 631. rubber pad; 64. directional rod; 7. extension lifting device; 71. U-shaped plate; 711. limit slot; 72. movable plate; 721. block; 73. L-shaped support plate; 74. locking bolt; 8. support table; 81. hydraulic telescopic rod; 82. integrated controller. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.
[0028] First embodiment:
[0029] In this embodiment, the front, rear, left, right, top and bottom are represented by Figure 1 Describes the datum surface. Figure 1-Figure 5 , the present invention provides a technical solution:
[0030] A variable space angle wing trailing edge skin experimental equipment, comprising a base 1, a fixed platform 2 is fixedly installed on the upper surface of the base 1, a plurality of adjustment holes are equidistantly provided on the base 1, bolts are screwed and installed between the fixed platform 2 and the corresponding adjustment holes, an adjustment platform 3 is slidably installed on the upper surface of the base 1, an L-shaped limit plate 11 is fixedly installed on the upper surface of the base 1 symmetrically front and back, the bottom of the adjustment platform 3 is slidably installed between the two limit plates 11, an arc track 31 is integrally formed in the adjustment platform 3, an angle mark 311 is provided on the front surface of the arc track 31, a movable platform 4 is slidably installed on the arc track 31, a walking mechanism 5 is installed between the movable platform 4 and the arc track 31, the walking mechanism 5 is used to drive the movable platform 4 to slide along the arc track 31, a clamping device 6 is fixedly installed on the upper surface of the movable platform 4 and the upper surface of the fixed platform 2, and an extended lifting device 7 is fixedly installed on the side away from the two clamping devices 6;
[0031] It should be noted that a support platform 8 is fixedly installed on the upper surface of the base 1, a hydraulic telescopic rod 81 is fixedly installed inside the support platform 8, and the left end of the hydraulic telescopic rod 81 is fixedly connected to the right surface of the adjustment platform 3;
[0032] Before use, the hydraulic telescopic rod 81 can be used to adjust the position of the adjustment platform 3 and the arc track 31 or adjust the position of the fixed platform 2 on the base 1 according to the size of the skin to adapt to the use position of the upper clamping device 6. After adjusting to the appropriate position, the adapter end of the skin is placed at the center of the arc track 31, and then the two ends are clamped and fixed by the clamping devices 6 on both sides. Then, the walking mechanism 5 is used to drive the movable platform 4 to slide on the arc track 31. During the sliding of the movable platform 4, the right end of the skin is flipped to simulate the bending angle of the skin during flight, thereby realizing the simulation of multiple bending angles with one experimental equipment. Compared with the prior art, it not only improves the operability of the experiment, allowing the operator to more conveniently adjust the bending angle of the skin and conduct experimental tests under different conditions, but also saves the experimental cost, avoids the purchase of multiple equipment to simulate different bending angles, and reduces the company's R&D investment.
[0033] like Figure 2 As shown, the walking mechanism 5 includes a walking motor 51 and an outer arc-shaped rack 53. The walking motor 51 is fixedly mounted on the right surface of the movable platform 4, and a gear 52 is sleeved on the outer surface of the output shaft of the walking motor 51. The outer arc-shaped rack 53 is fixedly mounted on the outer surface of the arc track 31. When the movable platform 4 is slidably connected with the arc track 31, the outer arc-shaped rack 53 is meshed with the gear 52. With the help of the walking motor 51, the movable platform 4 can be driven to slide on the arc track 31 through the cooperation between the gear 52 and the outer arc-shaped rack 53. When the adjusting platform 3 and the arc track 31 are manufactured, the distance between the adjusting platform 3 and the arc track 31 needs to be set to be large enough to ensure the normal operation of the walking motor 51 and the gear 52.
[0034] Combination Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the clamping device 6 includes an L-shaped plate 61, and the two L-shaped plates 61 are fixedly installed on the upper surface of the fixed platform 2 and the movable platform 4 respectively. The upper surface of the L-shaped plate 61 is threaded with a screw 62, and the lower surface of the screw 62 is fixedly installed with an I-type adapter block, and the outer surface of the I-type adapter block is rotatably installed with a pressure plate 63, and the upper surface of the pressure plate 63 is symmetrically fixedly installed with two directional rods 64, and the directional rods 64 are slidably connected with the corresponding L-shaped plate 61;
[0035] When the clamping device 6 is used, the screw rod 62 is manually rotated. When the screw rod 62 rotates, it can drive the pressing plate 63 to move upward or downward through the I-type adapter block, so that the end of the skin is clamped and fixed by the pressing plate 63.
[0036] In order to reduce the damage to the skin during clamping, two rubber pads 631 are symmetrically fixedly installed on the lower surface of the pressure plate 63. The rubber pads 631 can be used to contact the upper surface of the skin, thereby reducing the damage caused by clamping.
[0037] It is worth noting that when the clamping device 6 clamps a wider skin, due to the limited bearing surface of the fixed table 2 and the movable table 4, the skin position is prone to tilt when the lifting surface is insufficient, affecting the clamping operation. In order to facilitate the operation, an extended lifting device 7 is provided;
[0038] The extended lifting devices 7 include a U-shaped plate 71, which is fixedly mounted on the side of the L-shaped plate 61 away from the pressure plate 63. A movable plate 72 is slidably mounted inside the U-shaped plate 71. An L-shaped support plate 73 is fixedly mounted on the rear end of the movable plate 72. The lifting surface of the L-shaped support plate 73 is in the same horizontal plane as the upper surface of the fixed platform 2. A locking bolt 74 is threadedly mounted on the side of the U-shaped plate 71 away from the L-shaped plate 61 for tightening and fixing the movable plate 72.
[0039] When increasing the support surface of the skin, Figure 5 As shown, first loosen the locking bolt 74 to release the fixation of the movable plate 72, then slide and adjust the position of the movable plate 72 to drive the L-shaped support plate 73 to move with the L-shaped plate 61, and use the L-shaped support plate 73 to lift from the outer end of the skin as an auxiliary support point, so that the operator can adjust it when clamping the skin.
[0040] To prevent the movable plate 72 from sliding excessively and disengaging from the U-shaped plate 71, Figure 5 As shown, a limiting groove 711 is formed through the side of the U-shaped plate 71 away from the L-shaped plate 61, and a stopper 721 is fixedly installed on the outer surface of the movable plate 72. The stopper 721 is slidably installed in the limiting groove 711. The sliding adjustment stroke of the movable plate 72 can be limited by the cooperation between the stopper 721 and the limiting groove 711, so as to prevent it from sliding excessively and separating from the U-shaped plate 71.
[0041] The angle marks 311 are equidistantly arranged on the front surface of the arc track 31 in the circumferential direction, and the angle marks 311 are 90°, 80°, 70°, 60°, 50°, 40°, 30°, 20°, 10° and 0° respectively;
[0042] In order to facilitate the accurate alignment of the skin transfer point with the center of the arc track 31, thereby ensuring the smooth sliding of the movable platform 4, an infrared laser locator 312 has been embedded and installed on the inner side of the arc track 31. The locator is located behind the 90° mark. During the skin clamping process, the infrared laser locator 312 is turned on. After the skin is fixed, its transfer point should match the vertical shooting point of the infrared laser locator 312. Using infrared rays as a reference makes it easy to adjust the positions of the fixed platform 2 and the adjustment platform 3 when conducting experiments on skins of different sizes.
[0043] like Figure 1 As shown, an integrated controller 82 is embedded and installed on the upper surface of the support platform 8. The integrated controller 82 is electrically connected to the hydraulic telescopic rod 81, the travel motor 51, and the infrared laser locator 312. The integrated controller 82 is a PLC programming controller, which is mainly used to control the opening and closing of the travel motor 51, the speed adjustment, the opening and closing of the infrared laser locator 312, and the extension and stop of the hydraulic telescopic rod 81.
[0044] Second embodiment:
[0045] The difference between the second embodiment and the first embodiment is only the arrangement of the walking mechanism 5. Figure 7 As shown, a mounting groove 41 is provided through the movable platform 4. The walking mechanism 5 in this embodiment includes a walking motor 51 and an inner arc-shaped rack 54. The walking motor 51 is fixedly installed in the mounting groove 41, and a gear 52 is sleeved on the outer surface of the output shaft of the walking motor 51. The inner arc-shaped rack 54 is fixedly installed on the inner surface of the arc track 31. After the movable platform 4 is slidably connected with the arc track 31, the inner arc-shaped rack 54 is meshed with the gear 52. With the help of the meshing cooperation between the walking motor 51 and the gear 52 and the inner arc-shaped rack 54, the movable platform 4 can be driven to slide on the arc track 31, thereby driving the right end of the skin to flip for an angle change simulation experiment. This installation method of the walking mechanism 5 is used when the gap between the arc track 31 and the adjusting platform 3 is small, which can avoid the walking motor 51 being too large to be installed. At the same time, this installation method can save the manufacturing materials of the arc track 31 and the adjusting platform 3.
Claims
1. A variable space angle wing trailing edge skin test equipment, characterized in that: The invention comprises a base (1), a fixed platform (2) is fixedly mounted on the upper surface of the base (1), an adjustment platform (3) is slidably mounted on the upper surface of the base (1), an arc track (31) is integrally formed inside the adjustment platform (3), an angle mark (311) is arranged on the front surface of the arc track (31), a movable platform (4) is slidably mounted on the arc track (31), a walking mechanism (5) is installed between the movable platform (4) and the arc track (31), the walking mechanism (5) is used to drive the movable platform (4) to slide on the arc track (31), a clamping device (6) is fixedly mounted on the upper surface of the movable platform (4) and the upper surface of the fixed platform (2), and an extension lifting device (7) is fixedly mounted on the opposite side of the two clamping devices (6).
2. The variable space angle wing trailing edge skin test equipment according to claim 1 is characterized in that: A support platform (8) is fixedly mounted on the upper surface of the base (1), a hydraulic telescopic rod (81) is fixedly mounted inside the support platform (8), and the left end of the hydraulic telescopic rod (81) is fixedly connected to the right surface of the adjustment platform (3).
3. The variable space angle wing trailing edge skin test equipment according to claim 2, characterized in that: The walking mechanism (5) comprises a walking motor (51) and an outer arc-shaped rack (53); the walking motor (51) is fixedly mounted on the right surface of the movable platform (4); a gear (52) is sleeved on the outer surface of the output shaft of the walking motor (51); the outer arc-shaped rack (53) is fixedly mounted on the outer surface of the arc-shaped track (31); and the outer arc-shaped rack (53) is meshedly connected with the gear (52).
4. The variable space angle wing trailing edge skin test equipment according to claim 2, characterized in that: The movable platform (4) is provided with a mounting groove (41) extending therethrough. The walking mechanism (5) comprises a walking motor (51) and an inner arc-shaped rack (54). The walking motor (51) is fixedly installed in the mounting groove (41), and a gear (52) is sleeved on the outer surface of the output shaft of the walking motor (51). The inner arc-shaped rack (54) is fixedly installed on the inner surface of the arc-shaped track (31), and the inner arc-shaped rack (54) is meshingly connected with the gear (52).
5. A variable space angle wing trailing edge skin test equipment according to claim 3 or 4, characterized in that: The clamping devices (6) each comprise an L-shaped plate (61), wherein the two L-shaped plates (61) are respectively fixedly mounted on the upper surfaces of the fixed platform (2) and the movable platform (4), wherein a screw rod (62) is threadedly mounted through the upper surface of each L-shaped plate (61), wherein an I-type adapter block is fixedly mounted on the lower surface of each screw rod (62), wherein a pressure plate (63) is rotatably mounted on the outer surface of each I-type adapter block, wherein two directional rods (64) are symmetrically fixedly mounted on the upper surface of each pressure plate (63), wherein the directional rods (64) are slidably connected to the corresponding L-shaped plates (61).
6. The variable space angle wing trailing edge skin test equipment according to claim 5, characterized in that: Two rubber pads (631) are symmetrically and fixedly mounted on the lower surface of the pressing plate (63).
7. The variable space angle wing trailing edge skin test equipment according to claim 6, characterized in that: The extending lifting device (7) comprises a U-shaped plate (71), wherein the U-shaped plate (71) is fixedly mounted on a side of the L-shaped plate (61) away from the pressure plate (63), a movable plate (72) is slidably mounted inside the U-shaped plate (71), an L-shaped support plate (73) is fixedly mounted at the rear end of the movable plate (72), the lifting surface of the L-shaped support plate (73) is in the same horizontal plane as the upper surface of the fixed platform (2), and a locking bolt (74) for tightening and fixing the movable plate (72) is threadedly mounted through the side of the U-shaped plate (71) away from the L-shaped plate (61).
8. The variable space angle wing trailing edge skin test equipment according to claim 7, characterized in that: A limiting groove (711) is formed through a side of the U-shaped plate (71) facing away from the L-shaped plate (61); a stopper (721) is fixedly mounted on the outer surface of the movable plate (72); and the stopper (721) is slidably mounted in the limiting groove (711).
9. The variable space angle wing trailing edge skin test equipment according to claim 8, characterized in that: The angle marks (311) are equidistantly arranged on the front surface of the arc track (31) in the circumferential direction, and the angle marks (311) are 90°, 80°, 70°, 60°, 50°, 40°, 30°, 20°, 10° and 0° respectively; An infrared laser locator (312) is embedded and installed on the inner surface of the arc track (31), and the infrared laser locator (312) is arranged behind the 90° mark.
10. The variable space angle wing trailing edge skin test equipment according to claim 9, characterized in that: An integrated controller (82) is embedded and installed on the upper surface of the support platform (8), and the integrated controller (82) is electrically connected to the hydraulic telescopic rod (81), the travel motor (51), and the infrared laser locator (312).