CN204166762U - Magnus effect apparatus for demonstrating - Google Patents
Magnus effect apparatus for demonstrating Download PDFInfo
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- CN204166762U CN204166762U CN201420539631.6U CN201420539631U CN204166762U CN 204166762 U CN204166762 U CN 204166762U CN 201420539631 U CN201420539631 U CN 201420539631U CN 204166762 U CN204166762 U CN 204166762U
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- magnus effect
- demonstrating
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Abstract
Magnus effect apparatus for demonstrating provided by the utility model, comprises enclosure support structure, is respectively arranged with wind pushing mechanism and pendulous device in described enclosure support structure; Described wind pushing mechanism is arranged on the top of described enclosure support structure, and wherein said wind pushing mechanism is made up of fan fixed cover, the second motor, flabellum, and wherein said flabellum is fixed on fan fixed cover; Described pendulous device is arranged on immediately below wind pushing mechanism; Wherein pendulous device comprises right cylinder, the first motor, anchor ear and oscillating bar assembly; Wherein, the first motor is arranged in right cylinder, and coaxial with right cylinder, thus can drive right cylinder coaxial rotating; Described anchor ear one end is connected with motor rotary type, and the other end is connected with oscillating bar assembly.Following beneficial effect is achieved: make the public understand hydromechanical scientific knowledge by Magnus effect apparatus for demonstrating of the present utility model, in conjunction with the example in life, be interpreted as the vital phenomenas such as what ball can deflect in motion process, excite the public to take a keen interest in science, Scientific exploration.
Description
Technical field
The utility model relates to the apparatus for demonstrating in a kind of field of fluid mechanics, more specifically, relates to a kind of for studying and demonstrate the Magnus effect apparatus for demonstrating that object moves in the gas flow.
Background technology
Magnus effect is the important law in fluid mechanics.This effect major embodiment is: when the angular velocity of rotation vector of a rotating object does not overlap with object flight velocity vector, by generation transverse force on the direction of the plane being perpendicular formed with angular velocity of rotation vector translational velocity vector.The phenomenon that object flight path deflects under the effect of this transverse force is called Magnus effect.Why rotating object can in the effect of horizontal generation power, and from physical angle analysis, be surrounding fluid can be driven to rotate because object rotates, the fluid velocity of object side is increased, and opposite side fluid velocity reduces.According to Bernoulli's theorem, fluid velocity increase will cause pressure to reduce, and fluid velocity reduces to cause pressure to increase, and so just causes rotating object in the pressure differential of transverse direction, and forms transverse force.Simultaneously because transverse force and movement direction of object are perpendicular, therefore this advocates to want change of flight velocity reversal, and the centripetal force namely in formation object of which movement, thus cause the change of object heading, Fig. 1 shows rotating object Magnus effect in the gas flow.In our life, modal Magnus effect is exactly the curved shot camber line yaw motion in such as competitive sports.
The dynamic demonstration of Magnus effect is all vital for the science popularization of student or scientific worker for the research of the object running orbit in the gas flow of High Rotation Speed.We are found by retrieval, also do not show the apparatus for demonstrating of the interaction forms of Magnus effect principle at present.There are some devices just to allow operator experience the emission process of camber line object at present, do not relate to principal portion operation and control.Also have some to show the science popularization device of fluid mechanics Bernoulli's theorem, but show content and apparatus for demonstrating obvious differences of the present utility model.
Utility model content
The utility model is in order to overcome above-mentioned shortage human-computer interaction, operator cannot be made to understand a series of defects such as Magnus effect principle, the object running orbit in the gas flow of High Rotation Speed is reproduced by more directly perceived, vivid demonstration means, thus be convenient to the Magnus effect of scientific and technical research personnel to the object of High Rotation Speed and better understand, so that design various Related product.
Magnus effect apparatus for demonstrating provided by the utility model, comprises enclosure support structure, is respectively arranged with wind pushing mechanism and pendulous device in described enclosure support structure; Described wind pushing mechanism is arranged on the top of described enclosure support structure, and wherein said wind pushing mechanism is made up of fan fixed cover, the second motor, flabellum, and wherein said flabellum is fixed on fan fixed cover; Described pendulous device is arranged on immediately below wind pushing mechanism; Wherein pendulous device comprises right cylinder, the first motor, anchor ear and oscillating bar assembly; First motor is arranged in right cylinder, and coaxial with right cylinder; Described anchor ear one end is connected with motor rotary type, and the other end is connected with oscillating bar assembly.
Top rear wall wherein in the enclosure support structure of described Magnus effect apparatus for demonstrating is provided with plasm TV and display pannel.
Wherein also be provided with transparent panel in the front of described Magnus effect apparatus for demonstrating.
Wherein be provided with guard, cowling panel, coaming plate and lower guard on the top of described enclosure support structure; Wherein go up guard to be combined with lower guard by coaming plate, and form oval hollow-core construction; Described hollow-core construction is arranged on the top of enclosure support structure, the opening surface of described hollow-core construction is parallel with the front of described Magnus effect apparatus for demonstrating, described cowling panel perpendicular to the opening surface of oval hollow-core construction, and is horizontally set on the middle part of described oval hollow-core construction.
Wherein said wind pushing mechanism is arranged on guard, is arranged on lower guard by described pendulous device simultaneously.
Wherein said enclosure support structure is made up of steelframe, sliced venceer, top board.
Wherein said wind pushing mechanism is made up of fan fixed cover, the second motor, flabellum, and wherein said flabellum is fixed on described fan fixed cover, and is driven by described second motor, thus blows.
Wherein said pendulous device is supported by the baffle plate be arranged in the middle of enclosure support structure.
Following beneficial effect is achieved: make the public understand hydromechanical scientific knowledge by Magnus effect apparatus for demonstrating of the present utility model, in conjunction with the example in life, be interpreted as the vital phenomenas such as what ball can deflect in motion process, excite the public to take a keen interest in science, Scientific exploration.
Accompanying drawing explanation
Fig. 1 illustrates rotating object Magnus effect in the gas flow;
Fig. 2 illustrates the front perspective view of the Magnus effect apparatus for demonstrating of the utility model embodiment;
Fig. 3 illustrates the side perspective view of the Magnus effect apparatus for demonstrating of the utility model embodiment;
Fig. 4 illustrates the front view of the Magnus effect apparatus for demonstrating of the utility model embodiment;
Fig. 5 illustrates the structural representation of the pendulous device of the Magnus effect apparatus for demonstrating of the utility model embodiment;
Fig. 6 illustrates the control principle block scheme of the Magnus effect apparatus for demonstrating of the utility model embodiment.
Reference numerals list
1, steelframe; 2, sliced venceer; 3, top board; 4, display pannel; 5, panel; 6, transparent panel pressing plate; 7, transparent panel; 8, fan fixed cover; 9, the second motor; 10, flabellum; 11, plasm TV; 12, pendulous device; 13, oil groove; 14, upper guard; 15, cowling panel; 16, coaming plate; 17, lower guard; 18, baffle plate; 21, trim; 22, right cylinder; 23, the first motor; 24, anchor ear; 25, oscillating bar assembly; 26, front decoration lid; 27, rear trim; 28, the first insulating mat; 29, the second insulating mat; 30, fixed head; 31, shell fragment; 32, holder; 33, bearing; 34, counterweight; 35, baffle plate
As shown in the figure, in order to the structure of embodiment of the present utility model clearly can be realized, specific structure and device are marked in the drawings, but this is only signal needs, be not intended to the utility model is limited in this ad hoc structure, device and environment, according to specific needs, these devices and environment can carry out adjusting or revising by those of ordinary skill in the art, and the adjustment carried out or amendment are still included in the scope of accompanying claim.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of Magnus effect apparatus for demonstrating that the utility model provides is described in detail.Here do to illustrate, in order to make embodiment more detailed, the following examples are best, preferred embodiment, also can adopt other alternative and implement for some known technologies those skilled in the art simultaneously; And accompanying drawing part is only to describe embodiment more specifically, and be not intended to carry out concrete restriction to the utility model.It should be noted that, in order to not fuzzy inventive point of the present utility model, the utility model, for some known technologies, will repeat no more here as simple control principle, mechanical connection and circuit connect simultaneously.
Fig. 2-4 respectively illustrates the front perspective view of Magnus effect apparatus for demonstrating of the present utility model, side perspective view and front view.As shown in the figure, Magnus effect apparatus for demonstrating forms enclosure support structure by steelframe 1, sliced venceer 2, top board 3, is provided with wind pushing mechanism and pendulous device 12 in this enclosure support structure respectively.Wind pushing mechanism is arranged on the top of enclosure support structure, and forms primarily of fan fixed cover 8, second motor 9, flabellum 10, and wherein flabellum is fixed on fan fixed cover 8, and is driven by the second motor 9.
As shown in Figure 3, pendulous device 12 is arranged on immediately below wind pushing mechanism.Pendulous device 12 is preferably supported by the baffle plate 18 be arranged in the middle of enclosure support structure in the present embodiment.Hereafter, describe the composition of pendulous device 12 in detail with reference to Fig. 5.
In the present embodiment, preferably, understand the principles of science of Magnus effect displaying in order to be conducive to participant, the top rear wall in the enclosure support structure of Magnus effect apparatus for demonstrating is provided with plasm TV 11 and display pannel 4.This plasma electric machine can coordinate demonstrator, and demonstrates Magnus effect as shown in Figure 1 by memory devices such as CDs via display pannel 4, or is demonstrated the principles of science showing Magnus effect by acoustic image.
In preferred embodiment of the present utility model, the Magnus effect in Magnus effect apparatus for demonstrating clearly can be observed on the one hand in order to participant, and on the other hand, in order to avoid external environment condition is on the impact of wind pushing mechanism and pendulous device, also be provided with transparent panel 7 in the front of Magnus effect apparatus for demonstrating, thus effectively prevent the impact of external air flow on pendulous device.
In addition, in preferred embodiment of the present utility model, in order to guarantee the accurate demonstration of Magnus effect apparatus for demonstrating further, also on the top of the enclosure support structure of Magnus effect apparatus for demonstrating as shown in Figure 4, guard 14, cowling panel 15, coaming plate 16 and lower guard 17 is provided with.Wherein go up guard to be combined with lower guard by coaming plate, and form oval hollow-core construction.This hollow-core construction is arranged on the top of enclosure support structure, and the opening surface of hollow-core construction parallels with the front of Magnus effect apparatus for demonstrating.Cowling panel perpendicular to the opening surface of oval hollow-core construction, and is arranged on the middle part of this oval hollow-core construction, thus for carrying out rectification to the air-supply of wind pushing mechanism.After enclosure support structure is provided with above-mentioned parts, wind pushing mechanism is arranged on guard, is arranged on lower guard by pendulous device simultaneously.Wind pushing mechanism, when blowing, after carrying out rectification, and blows on the right cylinder of pendulous device 12 by cowling panel to air-supply equably.
Fig. 5 illustrates the structural representation of the pendulous device of the Magnus effect apparatus for demonstrating of the utility model embodiment.Pendulous device mainly comprises right cylinder 22, first motor 23, anchor ear 24, oscillating bar assembly 25.Wherein, the first motor is arranged in right cylinder, and coaxial with right cylinder, thus right cylinder can be driven to rotate.Anchor ear side is connected with motor rotary type, and the other end is connected with oscillating bar assembly.After demonstrator starts the first motor, the first motor drives right cylinder to rotate.After wind pushing mechanism starts air-supply, due to Magnus effect, right cylinder 22 can drive oscillating bar assembly to wave by anchor ear, thus enables participant clearly observe Magnus effect.
In a preferred embodiment of the invention, in order to clearly illustrate Magnus effect further, as shown in Figure 5, pendulous device also preferably includes base construction, and oscillating bar assembly 25 is installed on base construction.
This base construction comprises front decoration lid 26, rear trim 27, first insulating mat 28, second insulating mat 29, fixed head 30, shell fragment 31, holder 32, bearing 33, counterweight 34, baffle plate 35.Wherein front decoration lid 26 is fixed with middle rotating cylinder by the hole of bottom, and the hole that rear trim 27 crosses top is fixed with middle rotating cylinder.First insulating mat 28 is connected with the fixed head on upper pendulum bar by screw, the first insulating mat 28 act as below motor power lead is delivered to by the metallic member above this.Second insulating mat 29 is connected with the fixed head on upper pendulum bar by screw, its effect: below motor power lead is delivered to by the metallic member above this.Fixed head 30 is combined together by insulating mat above, the power transmission task acting as transmission motor single line of fixed head.Shell fragment 31 is connected with bottom plate by 2 holes on it, the acting as of this shell fragment the single line power supply of motor is above incorporated into below in control box (because fork will swing above, fork there is the motor of rotation, it is very flexible that whole fork swings requirement, resistance is little, motor lines may affect the flexibility ratio of fork when fork swings simultaneously, so motor lines is incorporated in control system below by 2 motors--fork self is metal, can bear the power transmission task of the other single line of motor.
In addition, one end welding and the lower support seat of holder 32, the other end 2 M3 threaded hole fixation spring tabs 31, it act as the power transmission task (that is: shell fragment 31 position passes over) transmitting motor single line.Supporting seat 33 bottom and showpiece are fixed, its effect: top is by the mechanism of 2 whole swings of recess supports above.Counterweight 34 is penetrated in draft link by intermediate throughholes, and by M6 only tight screw be fixed on draft link, this counterweight can move up and down the whole motor weight balancing reached with on upper pendulum bar on draft link.Front decoration baffle plate 35 is connected with fork above by 2 screw holes above, this baffle plate 35 to act as when fork swings spacing.
Fig. 6 illustrates the control principle block scheme of the Magnus effect apparatus for demonstrating of the utility model embodiment.As seen from Figure 6, the control operation part of Magnus effect apparatus for demonstrating is made up of two buttons and a knob.These two buttons and knob can be arranged on the housing parts of foregoing Magnus effect apparatus for demonstrating.Two buttons are used for the size of the blower fan air-supply controlling wind pushing mechanism respectively, and a button increases wind speed, and another button reduces wind speed.The direction that the right cylinder that knob is used for controlling pendulous device 12 rotates and rotational speed.To different directions turn knobs, then right cylinder can clockwise corresponding or counterclockwise rotate.Knob turn side-play amount is larger, then cylindrical rotational speed is faster.
Because electrical control part is mainly divided into the Electric Machine Control to pendulous device and the Electric Machine Control to air-supply structure, and these control to be all known control technologys in control, electric field, therefore no longer describe in detail here.
When scientific research personnel or faculty use Magnus effect apparatus for demonstrating of the present utility model to demonstrate, demonstrator controls sense of rotation and the rotational speed of the right cylinder 22 in pendulous device 12 by the control handle of pendulous device 12, and at this moment right cylinder 22 is rotated in position under the drive of the first motor 23.When demonstrator presses fan starting button, start the second motor 9 of fan, drive flabellum 10 to work, wind is vertically blown out from flabellum 10 from top to bottom by cowling panel 15, at this moment the direction difference of the right cylinder 22 rotated owing to rotating, under the action of the forces of the wind, or be tilted to the right together with pendulous device 12 left, the speed that the angle tilted and right cylinder 22 rotate is relevant with wind speed, namely the speed rotated is faster, and wind speed is faster, and the angle of inclination is also larger.Otherwise the angle of inclination is less, after cylindrical rotation terminates, due to the existence of counterweight 34, right cylinder can get back to initial centre position by nature.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a Magnus effect apparatus for demonstrating, comprises enclosure support structure, it is characterized in that:
Wind pushing mechanism and pendulous device is respectively arranged with in described enclosure support structure;
Described wind pushing mechanism is arranged on the top of described enclosure support structure, and wherein said wind pushing mechanism is made up of fan fixed cover, the second motor, flabellum, and wherein said flabellum is fixed on fan fixed cover;
Described pendulous device is arranged on immediately below wind pushing mechanism; Wherein pendulous device comprises right cylinder, the first motor, anchor ear and oscillating bar assembly; Wherein, the first motor is arranged in right cylinder, and coaxial with right cylinder; Described anchor ear one end is connected with motor rotary type, and the other end is connected with oscillating bar assembly.
2. Magnus effect apparatus for demonstrating according to claim 1, is characterized in that, the top rear wall in the enclosure support structure of described Magnus effect apparatus for demonstrating is provided with plasm TV and display pannel.
3. Magnus effect apparatus for demonstrating according to claim 1, is characterized in that, is also provided with transparent panel in the front of described Magnus effect apparatus for demonstrating.
4. Magnus effect apparatus for demonstrating according to claim 1, is characterized in that, is provided with guard, cowling panel, coaming plate and lower guard on the top of described enclosure support structure;
Wherein go up guard to be combined with lower guard by coaming plate, and form oval hollow-core construction;
Described hollow-core construction is arranged on the top of enclosure support structure, the opening surface of described hollow-core construction is parallel with the front of described Magnus effect apparatus for demonstrating, described cowling panel perpendicular to the opening surface of oval hollow-core construction, and is horizontally set on the middle part of described oval hollow-core construction.
5. Magnus effect apparatus for demonstrating according to claim 4, is characterized in that, described wind pushing mechanism is arranged on guard, is arranged on lower guard by described pendulous device simultaneously.
6. Magnus effect apparatus for demonstrating according to claim 1, is characterized in that, described enclosure support structure is made up of steelframe, sliced venceer, top board.
7. Magnus effect apparatus for demonstrating according to claim 1, is characterized in that, described wind pushing mechanism is made up of fan fixed cover, the second motor, flabellum, and wherein said flabellum is fixed on described fan fixed cover.
8. Magnus effect apparatus for demonstrating according to claim 1, is characterized in that, described pendulous device is supported by the baffle plate be arranged in the middle of enclosure support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539631.6U CN204166762U (en) | 2014-09-18 | 2014-09-18 | Magnus effect apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539631.6U CN204166762U (en) | 2014-09-18 | 2014-09-18 | Magnus effect apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166762U true CN204166762U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420539631.6U Expired - Fee Related CN204166762U (en) | 2014-09-18 | 2014-09-18 | Magnus effect apparatus for demonstrating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204166762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299486A (en) * | 2014-09-18 | 2015-01-21 | 中国科学技术馆 | Magnus effect demonstration instrument |
| CN108654046A (en) * | 2018-04-26 | 2018-10-16 | 刘庆连 | Ball lift launching simulation equipment based on Magnus hydrodynamic effect |
-
2014
- 2014-09-18 CN CN201420539631.6U patent/CN204166762U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299486A (en) * | 2014-09-18 | 2015-01-21 | 中国科学技术馆 | Magnus effect demonstration instrument |
| CN104299486B (en) * | 2014-09-18 | 2016-06-29 | 中国科学技术馆 | Magnus effect demonstrator |
| CN108654046A (en) * | 2018-04-26 | 2018-10-16 | 刘庆连 | Ball lift launching simulation equipment based on Magnus hydrodynamic effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |