CN220884811U - A detection device for aircraft wind resistance - Google Patents

Abstract

The utility model relates to the technical field of aircraft detection, and specifically is a detection device for aircraft wind resistance, comprising a bottom plate, two mounting plates are symmetrically fixed on the upper side of the bottom plate, a controller is installed on one side of one of the mounting plates, an aircraft body is arranged at the upper position of the bottom plate, and two wings are symmetrically fixed on the outer side of the aircraft body; the utility model can imitate the irregular airflow in nature through a swing mechanism, and perform wind resistance detection on two wings, thereby ensuring the accuracy of the detection result; by providing a plurality of pressure sensors, the pressure resistance performance of the two ends and the middle section of the two wings can be detected, thereby improving the detection range of the two wings; the plurality of pressure sensors sense the deformation pressure value data of the two wings when blown by a fan, and the plurality of pressure sensors convert the measured pressure values into analog electrical signals and transmit them to the display screen of the controller, thereby facilitating the staff to observe and record the numerical values.

Description

A detection device for wind resistance of aircraft

Technical Field

The utility model relates to the technical field of aircraft detection, in particular to a detection device for aircraft wind resistance.

Background technique

Aircraft include fixed-wing aircraft, helicopters, drones, etc. Among them, fixed-wing aircraft are also called fixed-wing drones, which are a type of fixed-wing micro drones. They are widely used because of their low noise and good concealment. After the production and processing of fixed-wing aircraft is completed, its wind resistance performance needs to be tested.

After searching, a Chinese patent with publication number CN212448162U discloses a fixed-wing aircraft wind resistance performance detection device that can be quickly locked and installed, including a base, a first rotating shaft, a connecting shaft, a bracket and a second rotating shaft, a connecting plate is installed on the base, and a positioning screw is installed on the connecting plate, the first rotating shaft and the first motor are interconnected, and the first rotating shaft and the base are interconnected, and a winding wheel is installed on the first rotating shaft, a pulling steel rope is installed on the connecting shaft, and the connecting shaft is installed on a placement plate, and the placement plate and the base are in contact with each other, and an electric telescopic rod is installed on the base.

The device adopts two rotating wheels to limit the position of the fixed-wing UAV body, that is, to control the height of the fixed-wing UAV body, so as to detect the fixed-wing UAV body in different states. It is more convenient and quick to fix the fixed-wing aircraft through suspension and telescopic rod fixing. During the wind resistance performance test, the fixed-wing aircraft needs to be fixed. The existing fixed-wing aircraft wind resistance performance testing device fixes the fixed-wing aircraft through a support rod. The fixing process is relatively cumbersome and inconvenient to operate the fixed-wing aircraft wind resistance performance testing device.

However, the device still has the following problems: during use, the air outlet position of the wind tube cannot be adjusted, and the wind direction cannot be changed, thereby failing to imitate the irregular airflow in nature, which limits the detection results of the aircraft wings.

Utility Model Content

The purpose of the utility model is to provide a detection device for aircraft wind resistance, which can imitate the irregular airflow in nature through a swing mechanism to perform wind resistance detection on two wings, thereby ensuring the accuracy of the detection results and solving the problems raised in the above-mentioned background technology.

The technical solution of the utility model is: a detection device for aircraft wind resistance, comprising a base plate, two mounting plates are symmetrically fixed on the upper side of the base plate, one side of one of the mounting plates is installed with a controller, an aircraft body is arranged at the upper position of the base plate, two wings are symmetrically fixed on the outer side of the aircraft body, and also includes: a swing mechanism and a detection mechanism, the swing mechanism is arranged at one end position above the base plate; the detection mechanism is arranged at one position of the two wings; the swing mechanism comprises a connecting shaft fixed to the upper side of the base plate, a motor installed on one side of one of the mounting plates, the output end of the motor is fixed with a rotating shaft that penetrates and is rotatably connected to the inner side of one of the mounting plates, the other end of the rotating shaft is fixed with a turntable, one side of the turntable is fixed with a slider, the outer side of the connecting shaft is rotatably connected with two connecting rods, one end of the two connecting rods is fixedly connected with a slide rod, the slider is slidably connected to the outer side of the slide rod, the other end of the two connecting rods is fixed with a fixing plate, and a fan is installed on one side of the fixing plate.

Preferably, the detection mechanism includes two installation grooves symmetrically opened on the inner side of the base plate, a connecting plate 1 is fixed on the inner side of the two installation grooves, a plurality of movable rods are slidably connected to the inner sides of the two connecting plates 1 at equal intervals, a connecting plate 2 is fixed at one end of the plurality of movable rods, a pressure sensor is arranged on one side of the plurality of connecting plates 2, and the plurality of pressure sensors are respectively attached to one side of the two wings.

Preferably, the outer sides of the plurality of moving rods are sleeved with return springs, one end of the plurality of return springs is respectively fixed to one side of two connecting plates, and the other end of the plurality of return springs is respectively fixed to one side of two connecting plates.

Preferably, a limiting block is fixed to the other end of each of the plurality of moving rods.

Preferably, a fixing box is fixed on the upper side of the bottom plate, a screw rod is rotatably connected to the inner side of the fixing box via a thread, a rotating wheel is fixed to one end of the outer side of the screw rod, and a fixing rod is rotatably connected to the outer side of the screw rod via a thread.

Preferably, the fixing rod is slidably connected to the inner side of the fixing box.

Preferably, legs are fixed to the four lower corners of the base plate.

The utility model provides an improved detection device for aircraft wind resistance, which has the following improvements and advantages compared with the prior art:

First, the utility model can imitate the irregular airflow in nature through the swing mechanism, and perform wind resistance detection on the two wings, thereby ensuring the accuracy of the detection results. By setting up multiple pressure sensors, the pressure resistance of the two wings at both ends and the middle section can be detected, thereby improving the detection range of the two wings. The multiple pressure sensors sense the deformation pressure value data of the two wings when blown by the fan, and the multiple pressure sensors convert the measured pressure values into analog electrical signals and transmit them to the display screen of the controller, so that the staff can observe and record the values.

Second, the utility model drives the screw to rotate by rotating the rotating wheel, and then drives the fixing rod to move through the threaded engagement, thereby fixing the aircraft body and ensuring the feasibility of detection. The fixing rod is slidably connected to the inner side of the installation box through the slider slot, which plays a guiding role and ensures the vertical movement of the fixing rod.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

FIG1 is a schematic diagram of the overall three-dimensional structure of the utility model;

FIG2 is a schematic diagram of the three-dimensional structure of the swing mechanism of the utility model;

FIG3 is a schematic diagram of a partial three-dimensional structure of a detection mechanism of the present utility model;

FIG. 4 is a schematic diagram of a three-dimensional cross-sectional structure of the interior of the fixing box of the present invention.

Description of reference numerals:

1. Bottom plate; 2. Mounting plate; 3. Controller; 4. Aircraft body; 5. Wing; 6. Connecting shaft; 7. Motor; 8. Rotating shaft; 9. Turntable; 10. Slider; 11. Connecting rod; 12. Sliding rod; 13. Fixed plate; 14. Fan; 15. Mounting slot; 16. Connecting plate 1; 17. Moving rod; 18. Connecting plate 2; 19. Pressure sensor; 20. Reset spring; 21. Limit block; 22. Fixing box; 23. Screw; 24. Rotating wheel; 25. Fixed rod; 26. Support leg.

Detailed ways

The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The utility model provides an improved detection device for wind resistance of aircraft. The technical solution of the utility model is:

As shown in Fig. 1 to Fig. 4, a detection device for wind resistance of aircraft includes a base plate 1, two mounting plates 2 are symmetrically fixed on the upper side of the base plate 1, the two mounting plates 2 and the base plate 1 are specifically welded and fixed, and the welding method is full welding to ensure the fixing effect, a controller 3 is installed on one side of one of the mounting plates 2, an aircraft body 4 is arranged at the upper position of the base plate 1, and two wings 5 are symmetrically fixed on the outer side of the aircraft body 4, and also includes: a swing mechanism and a detection mechanism, the swing mechanism is arranged at one end position above the base plate 1; the detection mechanism is arranged at one position of the two wings 5; the swing mechanism includes a connecting shaft 6 fixed on the upper side of the base plate 1, and a motor 7 installed on one side of one of the mounting plates 2. In order to ensure the stability of the installation of the motor 7, the motor 7 is supported by a motor The frame is fixed to one side of one of the mounting plates 2 by bolts and nuts, the output end of the motor 7 is fixed with a rotating shaft 8 which passes through and is rotatably connected to the inner side of one of the mounting plates 2, the other end of the rotating shaft 8 is fixed with a turntable 9, one side of the turntable 9 is fixed with a slider 10, the outer side of the connecting shaft 6 is rotatably connected to two connecting rods 11, the connecting shaft 6 can provide certain support for the swing mechanism to ensure the feasibility of the swing, one end of the two connecting rods 11 is fixedly connected to a slide bar 12, the slider 10 is slidably connected to the outer side of the slide bar 12, the other end of the two connecting rods 11 is fixed with a fixing plate 13, and one side of the fixing plate 13 is installed with a fan 14; the swing mechanism can imitate the irregular airflow in nature, and the wind resistance of the two wings 5 is tested to ensure the accuracy of the test results.

Furthermore, the detection mechanism includes two mounting grooves 15 symmetrically opened on the inner side of the base plate 1, and a connecting plate 16 is fixed on the inner side of the two mounting grooves 15, and a plurality of movable rods 17 are slidably connected to the inner sides of the two connecting plates 16 at equal intervals, and a connecting plate 2 18 is fixed at one end of the plurality of movable rods 17. In order to detect the wind resistance of the two wings 5, a pressure sensor 19 is provided on one side of the plurality of connecting plates 2 18, and the plurality of pressure sensors are respectively attached to the two ends and the middle section of the two wings 5; the wind resistance of the two wings 5 can be detected by the detection mechanism, and the wind resistance of the two ends and the middle section of the two wings 5 can be detected by providing a plurality of pressure sensors 19.

Furthermore, in order to ensure the reset of the multiple moving rods 17 after the two wings 5 are reset, the outer sides of the multiple moving rods 17 are sleeved with reset springs 20, one end of the multiple reset springs 20 is respectively fixed to one side of the two connecting plates 16, and the other end of the multiple reset springs 20 is respectively fixed to one side of the multiple connecting plates 2 18.

Furthermore, the other ends of the multiple moving rods 17 are fixed with limiting blocks 21, and the multiple limiting blocks 21 are respectively welded and fixed to the multiple moving rods 17, which play a limiting effect to prevent the multiple moving rods 17 from sliding out of the inner sides of the two connecting plates 16 when they are reset and moved.

Furthermore, a fixing box 22 is fixed to the upper side of the base plate 1, and the fixing box 22 is fixed to the base plate 1 by bolts. The fixing effect is good, and it can be disassembled, which is convenient for regular cleaning of internal dust. The inner side of the fixing box 22 is rotatably connected with a screw rod 23 through a thread, and a rotating wheel 24 is fixed to one end of the outer side of the screw rod 23, and the outer side of the screw rod 23 is rotatably connected with a fixing rod 25 through a thread; it is convenient to fix the aircraft body 4.

Furthermore, the fixing rod 25 is slidably connected to the inner side of the fixing box 22 via a sliding bar slot, which plays a guiding role and ensures the vertical movement of the fixing rod 25 .

Furthermore, legs 26 are fixed to the four lower corners of the bottom plate 1, thereby improving the stability of the device.

Working principle: when in use, the aircraft body 4 to be tested is placed on the upper side of the bottom plate 1, so that the two wings 5 are respectively fitted with multiple pressure sensors 19, and the staff holds the rotating wheel 24 to rotate, thereby driving the screw 23 to rotate, and the outer side of the screw 23 is connected to the fixing rod 25 through threaded rotation, and the fixing rod 25 is slidably connected to the inner side of the fixing box 22, which plays a guiding role and ensures the vertical movement of the fixing rod 25. The fixing rod 25 moves to contact the outside of the aircraft body 4 to fix it, and the switches of the motor 7 and the fan 14 are turned on by the controller 3. The motor 7 is turned on to drive the rotating shaft 8 to rotate, and then drives the turntable 9 fixed thereto to rotate synchronously, and a slider 10 is fixed on one side of the turntable 9, and the slider 10 is slidably connected to the outer side of the sliding rod 12, so that the slider 10 rotates, driving the sliding rod 12 to reciprocate horizontally left and right, and the upper and lower ends of the sliding rod 12 are respectively fixed to the two connecting rods 11, and the other ends of the two connecting rods 11 are fixedly connected to the fixing plate 13, thereby driving the fan 14 to reciprocate horizontally and fan, simulating a large The irregular airflow in nature blows the two wings 5. The two wings 5 are deformed by the wind and squeeze the multiple pressure sensors 19. The multiple pressure sensors 19 convert the pressure values sensed at the two ends and the middle position of the two wings 5 into analog electrical signals and transmit them to the display screen of the controller 3, so that the staff can record the values. At the same time, the multiple pressure sensors 19 are squeezed and moved, driving the multiple moving rods 17 to move synchronously, thereby squeezing the multiple reset springs 20. After the detection is completed, the fan 14 is turned off. Under the elastic force of the multiple reset springs 20, the multiple pressure sensors 19 are reset. The other ends of the multiple moving rods 17 are fixed with limiting blocks 21, which play a limiting role to avoid being affected by the elastic force of the multiple reset springs 20. When the multiple moving rods 17 are reset, they slide out of the inner side of the two connecting plates 16, ensuring the feasibility of the device. Through the above principle, the wind resistance detection of the two wings 5 is completed, and the accuracy of the measurement results is ensured by imitating the irregular airflow in nature.

The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A detection device for wind resistance of an aircraft, comprising a base plate (1), two mounting plates (2) are symmetrically fixed on the upper side of the base plate (1), a controller (3) is installed on one side of one of the mounting plates (2), an aircraft body (4) is arranged above the base plate (1), two wings (5) are symmetrically fixed on the outer side of the aircraft body (4), and the device is characterized in that it also includes: A swing mechanism, the swing mechanism being arranged above the bottom plate (1) and at one end; A detection mechanism, the detection mechanism being arranged at one position of the two wings (5); The swing mechanism comprises a connecting shaft (6) fixed on the upper side of the base plate (1), and a motor (7) installed on one side of one of the mounting plates (2); a rotating shaft (8) penetrating and rotatably connected to the inner side of one of the mounting plates (2) is fixed to the output end of the motor (7); a rotating disk (9) is fixed to the other end of the rotating shaft (8); a sliding block (10) is fixed to one side of the rotating disk (9); two connecting rods (11) are rotatably connected to the outer side of the connecting shaft (6); one end of the two connecting rods (11) is fixedly connected to a sliding block (12); the sliding block (10) is slidably connected to the outer side of the sliding block (12); a fixing plate (13) is fixed to the other end of the two connecting rods (11); and a fan (14) is installed on one side of the fixing plate (13). 2. A detection device for aircraft wind resistance according to claim 1, characterized in that: the detection mechanism includes two installation grooves (15) symmetrically opened on the inner side of the bottom plate (1), the inner sides of the two installation grooves (15) are fixed with connecting plates (16), the inner sides of the two connecting plates (16) are respectively and evenly spacedly connected with a plurality of moving rods (17), one end of the plurality of moving rods (17) is fixed with connecting plates (18), one side of the plurality of connecting plates (18) is provided with pressure sensors (19), and the plurality of pressure sensors (19) are respectively attached to one side of two wings (5). 3. A detection device for aircraft wind resistance according to claim 2, characterized in that: a return spring (20) is sleeved on the outer side of each of the plurality of movable rods (17), one end of each of the plurality of return springs (20) is respectively fixed to one side of two connecting plates (16), and the other end of each of the plurality of return springs (20) is respectively fixed to one side of two connecting plates (18). 4. The aircraft wind resistance detection device according to claim 2, characterized in that a limiting block (21) is fixed to the other end of each of the plurality of movable rods (17). 5. A detection device for aircraft wind resistance according to claim 1, characterized in that: a fixing box (22) is fixed on the upper side of the base plate (1), a screw rod (23) is rotatably connected to the inner side of the fixing box (22) through a thread, a rotating wheel (24) is fixed to one end of the outer side of the screw rod (23), and a fixing rod (25) is rotatably connected to the outer side of the screw rod (23) through a thread. 6. The aircraft wind resistance detection device according to claim 5, characterized in that the fixing rod (25) is slidably connected to the inner side of the fixing box (22). 7. The aircraft wind resistance detection device according to claim 1, characterized in that legs (26) are fixed to the four lower corners of the bottom plate (1).