CN210324744U

CN210324744U - Measuring device based on wing model surface pressure intensity experiment

Info

Publication number: CN210324744U
Application number: CN201921386507.XU
Authority: CN
Inventors: 丁扬阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-04-14
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a measuring device based on a wing model surface pressure intensity experiment, which comprises a bottom frame, wherein a power mechanism, a wing detection mechanism and a display mechanism are sequentially arranged on the same axis of the bottom frame; the power mechanism comprises a lifting cylinder, a support frame and a fan which are symmetrical to each other, the top of the lifting cylinder is movably connected with the tail end of the fan through a spherical hinge, and a rotating shaft on the inner wall of the support frame is movably connected with the front end of the fan. According to the measuring device based on the wing model surface pressure intensity experiment, the lifting cylinder can control the lifting of the tail end of the fan to achieve the purpose of adjusting different wind directions, airflow generated by the fan floats towards the wing model, when the airflow pipe receives airflow at different points of the wing model, the pressure intensity in the pipe at different positions is increased, the increase amount is different, the liquid container pushes the liquid in the pipe to the diffusion pipe, the numerical value on the scale plate is displayed, different pressure intensity values are displayed on the plate, and the data are detected and compared.

Description

Measuring device based on wing model surface pressure intensity experiment

Technical Field

The utility model relates to an experimental facilities technical field specifically is a measuring device based on wing model surface pressure experiment.

Background

Physics is the science based on experiments and observations, and the principle that wings generate lift force is as follows: when the wing passes through the air at a certain relative speed, the air pushed from the front upper part upwards has pressure, the air going upwards needs to supplement the area behind the arc, the air flow direction changes that the upper wing surface has a large low-pressure area, the air is continuously driven backwards to go downwards, the low-pressure area is increased, but the air at this moment has a downward trend, so the negative pressure value is gradually reduced, the area of the low-pressure area is large, the downward force applied to the overall wing surface is smaller than the upward force, the lift force appears, the physical phenomenon is very abstract in description, the acceptance by people is not facilitated, the wing lift force demonstrating experimental instrument is generated, and the wing lift force experimental instrument product can be put into use only after being detected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a measuring device based on wing model surface pressure experiment has the accuracy of detection equipment and the advantage that facilitates the use, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a measuring device based on a wing model surface pressure intensity experiment comprises a bottom frame, wherein a power mechanism, a wing detection mechanism and a display mechanism are sequentially arranged on the same axis of the bottom frame;

the power mechanism comprises a lifting cylinder, a support frame and a fan which are symmetrical to each other, the top of the lifting cylinder is movably connected with the tail end of the fan through a spherical hinge, and a rotating shaft on the inner wall of the support frame is movably connected with the front end of the fan;

the wing detection mechanism comprises a frame, a sleeve, a wing model and a drainage plate, wherein bearings on two sides of the sleeve, which penetrates through the frame, are respectively fixed with the drainage plate;

the display mechanism comprises a vertical rod, a scale plate, a liquid container and a diffusion tube, wherein the scale plate is fixed on the vertical rod, the liquid container and the diffusion tube are adhered to the side wall of the scale plate, the bottom end of the liquid container is connected with the port of the diffusion tube, and the top end of the liquid container is connected with the port of the air flow tube.

Preferably, the air outlet of the fan faces the wing model, and the width of the flow guide plate is larger than the diameter of the air outlet of the fan.

Preferably, the diffusion pipe is a glass pipe which is inclined upwards, and the liquid container is connected with a port at the lower part of the diffusion pipe.

Preferably, the air flow pipe penetrates through the port of the wing model to exceed the surface of the wing model by 2-5 mm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the measuring device based on the wing model surface pressure intensity experiment has the advantages that the front end of the fan can rotate around the rotating shaft on the supporting frame, the lifting of the tail end of the fan can be controlled by the lifting of the cylinder rod of the lifting cylinder, the purpose of adjusting different wind directions is achieved, the pressure intensity change under different wind forces is simulated, airflow generated by the fan floats towards the wing model, the airflow at the top of the wing model is high in pressure intensity, the airflow at the bottom is low in pressure intensity, the airflow flies upwards, the pressure intensity in pipes at different positions is increased when the airflow pipes receive airflow at different points of the wing model, the increase amount is different, the liquid container pushes the liquid inside the pipes to the diffusion pipe, the numerical value on the scale plate is displayed, different pressure intensity values are displayed on one plate, and the data of the pressure intensity values are detected.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a side view of the wing model of the present invention without the wing model;

FIG. 3 is a side view of the wing model installation of the present invention;

fig. 4 is a cross-sectional view of a wing model of the present invention;

fig. 5 is a structure diagram of the sleeve of the present invention.

In the figure: 1. a chassis; 2. a power mechanism; 21. a lifting cylinder; 22. a support frame; 23. a fan; 3. a wing detection mechanism; 31. a frame; 32. a sleeve; 321. an arc hole; 33. a wing model; 34. a drainage plate; 341. an airflow duct; 4. a display mechanism; 41. a vertical rod; 42. a scale plate; 43. a liquid container; 44. a diffuser tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a measuring device based on a wing model surface pressure experiment comprises a base frame 1, wherein a power mechanism 2, a wing detection mechanism 3 and a display mechanism 4 are sequentially arranged on the same axis of the base frame 1; power unit 2 includes lift cylinder 21, mutual symmetry's support frame 22 and fan 23, the tail end swing joint of spherical hinge and fan 23 is passed through at the top of lift cylinder 21, the pivot on the support frame 22 inner wall and the front end swing joint of fan 23, the front end of fan 23 can take place rotatoryly round the pivot on the support frame 22, the lift of 23 tail ends of fan can be controlled in the cylinder pole lift of lift cylinder 21, be used for reaching the purpose of adjusting different wind-force directions.

Referring to fig. 2-5, the wing detection mechanism 3 includes a frame 31, a sleeve 32, a wing model 33 and a flow guide plate 34, the sleeve 32 penetrates through bearings on two sides of the frame 31 and is fixed to the flow guide plate 34, the sleeve 32 can rotate on the frame 31, the wing model 33 is fixed on the sleeve 32, an air outlet of the fan 23 faces the wing model 33, a width of the flow guide plate 34 is larger than a diameter of the air outlet of the fan 23, an airflow generated by the fan 23 faces the wing model 33, due to the design of the wing model 33, pressure intensities at different positions of points on an outer surface of the wing model 33 are different to detect the pressure intensities, an arc hole 321 is formed in the wing model 33 on the sleeve 32, an airflow tube 341 is distributed on an outer wall of the flow guide plate 34, the airflow tube 341 has enough space to swing during rotation of the sleeve 32, one end of the airflow tube 341 is inserted into the sleeve 32, the airflow pipe 341 penetrates through the arc hole 321 and the surface of the wing model 33, the port of the airflow pipe 341 penetrating through the wing model 33 exceeds the surface of the wing model 33 by 2-5 mm, the point where the airflow pipe 341 and the wing model 33 protrude is used for measuring the pressure value on the point of the wing model 33, the display mechanism 4 comprises a vertical rod 41, a scale plate 42, a liquid container 43 and a diffusion pipe 44, the scale plate 42 is fixed on the vertical rod 41, the liquid container 43 and the diffusion pipe 44 are adhered on the side wall of the scale plate 42, the bottom end of the liquid container 43 is connected with the port of the diffusion pipe 44, the top end of the liquid container 43 is connected with the port of the airflow pipe 341, the diffusion pipe 44 is a glass pipe which is inclined upwards, the liquid container 43 is connected with the port at the lower part of the diffusion pipe 44, and when the airflow pipe, the pressure in the tube increases and the liquid container 43 pushes the liquid inside onto the diffuser tube 44, and the value on the scale plate 42 is displayed.

The working principle is as follows: the front end of the fan 23 can rotate around a rotating shaft on the support frame 22, the lifting of a cylinder rod of the lifting cylinder 21 can control the lifting of the tail end of the fan 23, so that the purpose of adjusting different wind directions is achieved, airflow generated by the fan 23 floats towards the wing model 33, when the airflow pipe 341 receives airflow at different points of the wing model 33, the pressure in the pipe is increased, the liquid container 43 pushes the liquid in the pipe to the diffusion pipe 44, the numerical value on the scale plate 42 is displayed, different pressure values are displayed on one plate, and the data are detected and compared.

In summary, the following steps: according to the measuring device based on the wing model surface pressure experiment, the front end of the fan 23 can rotate around the rotating shaft on the support frame 22, the lifting of the tail end of the fan 23 can be controlled by the lifting of the cylinder rod of the lifting cylinder 21, the purpose of adjusting different wind directions is achieved, pressure change under different wind forces is simulated, airflow generated by the fan 23 floats towards the wing model 33, the airflow at the top of the wing model 33 is small in pressure and strong in small pressure, the airflow at the bottom of the wing model 33 flies upwards, when the airflow pipe 341 receives the airflow of the wing model 33, the pressure in different positions of the pipe is increased, the increase amount is different, the liquid container 43 pushes the liquid in the wing model to the diffusion pipe 44, the numerical value on the scale plate 42 is displayed, different pressure values are displayed on one plate, and the data are detected and compared.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a measuring device based on wing model surface pressure experiment, includes chassis (1), its characterized in that: the underframe (1) is sequentially provided with a power mechanism (2), a wing detection mechanism (3) and a display mechanism (4) on the same axis;

the power mechanism (2) comprises a lifting cylinder (21), a support frame (22) and a fan (23), wherein the support frame (22) and the fan (23) are symmetrical to each other, the top of the lifting cylinder (21) is movably connected with the tail end of the fan (23) through a spherical hinge, and a rotating shaft on the inner wall of the support frame (22) is movably connected with the front end of the fan (23);

the wing detection mechanism (3) comprises a frame (31), a sleeve (32), a wing model (33) and a flow guide plate (34), wherein the sleeve (32) penetrates through bearings on two sides of the frame (31) and is fixed with the flow guide plate (34) respectively, the wing model (33) is fixed on the sleeve (32), an arc hole (321) is formed in the inner part of the wing model (33) of the sleeve (32), an airflow pipe (341) is distributed on the outer wall of the flow guide plate (34) and penetrates through the outer wall of the flow guide plate, and one end of the airflow pipe (341) is inserted into the sleeve (32) and penetrates through the arc hole (321) and the surface of the wing model (33);

the display mechanism (4) comprises a vertical rod (41), a scale plate (42), a liquid container (43) and a diffusion tube (44), the scale plate (42) is fixed on the vertical rod (41), the liquid container (43) and the diffusion tube (44) are adhered to the side wall of the scale plate (42), the bottom end of the liquid container (43) is connected with a port of the diffusion tube (44), and the top end of the liquid container (43) is connected with a port of the airflow tube (341).

2. The measurement device based on the wing model surface pressure experiment of claim 1, wherein: the air outlet of the fan (23) faces the wing model (33), and the width of the flow guide plate (34) is larger than the diameter of the air outlet of the fan (23).

3. The measurement device based on the wing model surface pressure experiment of claim 1, wherein: the diffusion pipe (44) is a glass pipe which is inclined upwards, and the liquid container (43) is connected with a port at the lower part of the diffusion pipe (44).

4. The measurement device based on the wing model surface pressure experiment of claim 1, wherein: the air flow pipe (341) penetrates through the port of the wing model (33) and exceeds the surface of the wing model (33) by 2-5 mm.