CN103943002B - Horizontal cast movement demonstration instrument - Google Patents
Horizontal cast movement demonstration instrument Download PDFInfo
- Publication number
- CN103943002B CN103943002B CN201410128501.8A CN201410128501A CN103943002B CN 103943002 B CN103943002 B CN 103943002B CN 201410128501 A CN201410128501 A CN 201410128501A CN 103943002 B CN103943002 B CN 103943002B
- Authority
- CN
- China
- Prior art keywords
- opening
- demonstration instrument
- cylinder
- lifting device
- screw lifting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Toys (AREA)
Abstract
The invention discloses a kind of horizontal cast movement demonstration instrument, there is a rectangular base plate (1), one buncher (3) is installed on base plate, motor shaft is connected with a screw lifting device of vertically installing, described screw lifting device is contained in a cylinder (6), and accommodate battery of tests bead (7), described screw lifting device is by bracing or strutting arrangement fixed position, there is one first opening (12) on the top of cylinder, opening connects the flat track (13) of throwing of a tubular type, one second opening (14) is arranged at the bottom of cylinder, the second opening is connected with an arc accumulator tank (15), the first opening, the second opening is all in cylinder one side, be provided with a vertical back vertical plate (16), measurement mechanism is installed on back vertical plate. adopt such scheme, student can obtain the parabolic path of a vivid spheroid of making level throw motion.
Description
Technical field
The present invention relates generally to a kind of physics facility, particularly demonstrating level throw motion rule lecture experiment dress usedPut.
Background technology
In physics facility, especially, in dynamics experimental device, often to relate to the motion rule of demonstrating level throw motionRule. We know a kind of special circumstances in projectile motion, initial velocity direction along continuous straight runs when object is dished out,Object has horizontal initial rate, and the curvilinear motion of only doing under Action of Gravity Field is called level throw motion. Analyzing level throw motionTime we can be decomposed into level throw motion two componental movements of horizontal direction and vertical direction. The motion of horizontal direction is at the uniform velocityRectilinear motion, vertical direction is the movement of falling object. In order to reach in physics teaching studying rule of horizontal projectile movement, to describe flat throwingMovement locus of object, checking level throw motion are closing of horizontal forward linear uniform motion and the movement of falling object vertically downwardBecome motion, existing many experimental provisions, but respectively have quality.
The major defect that existing horizontal cast movement demonstration instrument exists is that projectile is only used a bead, in addition projectile motion timeShort, speed is fast, and student does not see the movement locus of projectile at all, and existing demonstration instrument great majority can not present level throw motionTrack, although some horizontal cast movement demonstration instruments as the patent No. utility model patent that is CN87205180 with magnetic force inhale put part,Projectile is put in suction, substitutes and rolls with translation, in the time that object is made level throw motion, utilizes the nib and the steel track note that are fixed on projectileCoordinate paper " soft " contact of record panel, once automatic accurately depicts a clear movement locus. But this demonstration instrument is given and is learnedRaw to feel that projectile is made projectile in translation and their imagination not quite alike, same this demonstration instrument or due to projectileMovement velocity is too fast, gives the time of observation of students too short, and student is at all not deep to the reflection of level throw motion. The and for example patent No.Be 201120106303 utility model patent, when it utilizes sensor technology to obtain projectile motion, precise time is measured, andThe time value that can record bead motion, shows measured time value data, has also realized and has allowed education experiment and computer combine.But this invention does not still solve the problem that projectile motion track presents, student for the understanding of projectile motion track still logicalThe theory analysis of crossing teacher draws. So teacher can only pass through multimedia courseware for the movement locus of projectile is presented to studentOr these traditional ways of stroboscopic photograph. Also the horizontal cast movement demonstration instrument having adopts in the high bottle side hanging and lays a waterFlat pipe, presents the track of projectile motion with the current that spray in pipe, but this demonstration instrument can not visual pattern groundDemonstrating this track is to be produced by projectile motion. Therefore, above method all can not make student's visual understanding level throw motionMovement characteristic, demonstration instrument is not deep to student's reflection.
Summary of the invention
The object of the present invention is to provide one can overcome known technology shortcoming, demonstration instrument can be transported by fine demonstrating level throwThe moving characteristics of motion, allows student not only can see that the projectile of level throw motion is a bead, and projectile one in the student imaginationCause, can also allow student see that the track of projectile motion is a parabola, also can record projectile at a time simultaneously simultaneouslyCoordinate, analyze the rule of level throw motion and a kind of horizontal cast movement demonstration instrument of movement locus.
For achieving the above object, the solution of the present invention is: a kind of horizontal cast movement demonstration instrument, has a rectangular base plate, on base plateOne buncher is installed, and motor shaft is connected with a screw lifting device of vertically installing, and described screw lifting device is contained inIn a cylinder, and accommodate battery of tests bead, described screw lifting device is by bracing or strutting arrangement fixed position, upper at cylinderThere is one first opening in portion, and opening connects the flat track of throwing of a tubular type, and one second opening is arranged at the bottom of cylinder, the second opening and an arcAccumulator tank connects, the first opening, and the second opening, all in cylinder one side, is provided with a vertical back vertical plate, on back vertical plate, installsThere is measurement mechanism.
Adopt such scheme, student can obtain the parabolic path of a vivid spheroid of making level throw motion, overcomesThe deficiency of known technology, thereby realized object of the present invention.
Below in conjunction with diagram and embodiment, scheme is described in more detail.
Brief description of the drawings
Fig. 1 is the front view of horizontal cast movement demonstration instrument;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the diagram I that horizontal cast movement demonstration instrument calculates;
Fig. 5 is the diagram II that horizontal cast movement demonstration instrument calculates.
Detailed description of the invention
As shown in Figure 1, described horizontal cast movement demonstration instrument has a rectangular base plate 1, and base screw 2, the end are equipped with in base plate lower endBuncher 3 is equipped with in one end above plate, and motor shaft is connected with a screw lifting device of vertically installing, described screw liftingIn the middle of device, have a vertical shaft 4, be fixed with a circle flight 5 along vertical shaft, vertical shaft and flight all pack a microscler cylinder 6 intoIn, fill test pellet 7 along flight 5, described bead makes with plastics, and the bearing block 8 of vertical shaft 4 upper ends is fixed on by flangeOn upper backup pad 9, the two ends of upper backup pad are supported by left riser 10 and right riser 11, and left riser and right riser are fixed on rectangular baseOn two minor faces of plate 1, form portal frame, described portal frame forms the bracing or strutting arrangement of screw lifting device.
The upper end of cylinder 6 has one first opening 12 to be connected to the flat throwing track 13 of a tubular type, and as bead 7 do, flat throwing is testedOutlet, the lower end of cylinder 6 has one second opening 14 to be connected with arc accumulator tank 15, and the bottom of groove is lined with sponge, and described firstOpening and the second opening be all in cylinder 6 the same sides, flat track 13 and the arc accumulator tank 15 thrown all in same plane, arcAccumulator tank 15 other ends are supported by right riser 11, right riser 11 and a common back vertical plate 16, the back vertical plate of supporting of upper backup pad 9Plate face is respectively decorated with one group of lines along transverse direction and vertical direction, and two groups of lines intersect becomes lattice one by one, little as meteringBall is made the coordinate of parabolic motion, at back vertical plate transverse direction and vertical direction, one laser pen 17 is all installed, in the guide of coordinateUnder, can laser pen be beaten on same bead simultaneously. Laser pen 17 use wing nuts 18 are arranged on open slot 19, along open slotSlip can regulate the position of laser pen, as measurement mechanism, as shown in Figure 3.
Knob 20 in Fig. 2 is that buncher speed governing is used.
When this device uses, open buncher, and adjust rotating speed, bead 7 is under the drive of helical blade, along promotingDevice enters the flat track 13 of throwing, and falls with certain initial velocity from the end of track from the flat throwing track of level, dishes out at beadThe vertical back vertical plate 16 below of movement locus, and two laser pens, in the time that two light beams are beaten on same bead, write down studied littleThe corresponding formula of coordinate utilization of ball just can calculate speed and the displacement of level throw motion. When bead drops to the bottom of coordinatometerTime, the plastic beads of dishing out is caught by arc accumulator tank 15, and the sponge that bottom is lined with has prevented little bound. Returned by arc like thisThe bead that receipts groove is caught enters helical blade along track and enters lifting device. In the time that buncher rotates with friction speed, mouldMaterial bead is just dished out from the flat track cross level of throwing with different speed, and the movement locus of the bead of successively dishing out is just at coordinatometerClearly present above, image in the extreme, has reached the object of imparting knowledge to students.
Calculate speed and the respective formula that displacement is quoted of level throw motion and be illustrated as:
1, the characteristics of motion of level throw motion is:
Horizontal direction is-linear uniform motion
Vertical direction is-movement of falling object
2, movement locus: horizontal direction is:
Vertical direction is:
So the track of level throw motion is parabola.
The speed of 3 level throw motions:
If the time, object moved to a P place by O point, is known by Fig. 4 while being t
；
The speed of level throw motion:
Size:
Direction:
4 displacements
If the time, object moved to a P place by O point, is known by Fig. 5 while being t
；
The displacement of level throw motion:
Size:
Direction:
Claims (6)
1. a horizontal cast movement demonstration instrument, is characterized in that: has a rectangular base plate (1), a buncher (3) is installed on base plate,Motor shaft is connected with a screw lifting device of vertically installing, and described screw lifting device is contained in a cylinder (6), spiral shellRevolve and in lifting device, accommodate battery of tests bead (7), described screw lifting device is by bracing or strutting arrangement fixed position, at cylinderOne first opening (12) is arranged at top, and the first opening (12) connects the flat track (13) of throwing of a tubular type, and the bottom of cylinder has one second to openMouth (14), the second opening (14) is connected with an arc accumulator tank (15), the first opening, the second opening all, in cylinder one side, is establishedThere is a vertical back vertical plate (16), measurement mechanism is installed on back vertical plate.
2. a kind of horizontal cast movement demonstration instrument according to claim 1, is characterized in that: in the middle of described screw lifting deviceHave a vertical shaft (4), be fixed with a circle flight (5) along vertical shaft, vertical shaft and flight all pack in a microscler cylinder (6).
3. a kind of horizontal cast movement demonstration instrument according to claim 1, is characterized in that: the bearing block (8) of vertical shaft (4) upper endBe fixed on upper backup pad (9) by flange upper, the two ends of upper backup pad are supported by left riser (10) and right riser (11), left riserAnd right riser is fixed on two minor faces of rectangular base plate (1), form portal frame, described portal frame forms screw lifting dressThe bracing or strutting arrangement of putting.
4. a kind of horizontal cast movement demonstration instrument according to claim 1, is characterized in that: flat throwing track (13) and arc reclaimGroove (15) is in same plane.
5. a kind of horizontal cast movement demonstration instrument according to claim 1, is characterized in that: arc accumulator tank (15) other end byRight riser (11) supports, and right riser (11) supports a back vertical plate (16) jointly with upper backup pad (9), and the plate face of back vertical plate is along horizontal strokeDirection and vertical direction are respectively decorated with one group of lines, and two groups of lines intersect becomes lattice one by one, make parabolic as metering beadThe coordinate of line motion.
6. a kind of horizontal cast movement demonstration instrument according to claim 1 or 5, is characterized in that: at back vertical plate transverse direction and perpendicularNogata, to a laser pen (17) is all installed, under the guide of coordinate, can be played laser pen on same bead laser pen simultaneouslyBe arranged on open slot (19) with wing nut (18) upper, slide and can regulate the position of laser pen along open slot, as measuring dressPut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128501.8A CN103943002B (en) | 2014-04-02 | 2014-04-02 | Horizontal cast movement demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128501.8A CN103943002B (en) | 2014-04-02 | 2014-04-02 | Horizontal cast movement demonstration instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103943002A CN103943002A (en) | 2014-07-23 |
| CN103943002B true CN103943002B (en) | 2016-05-11 |
Family
ID=51190645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410128501.8A Expired - Fee Related CN103943002B (en) | 2014-04-02 | 2014-04-02 | Horizontal cast movement demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103943002B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297499A (en) * | 2016-07-29 | 2017-01-04 | 江苏华明科教设备有限公司 | A kind of little sphere path curve apparatus for demonstrating |
| CN106991878B (en) * | 2017-03-31 | 2019-04-19 | 白甲一 | A kind of level throw motion Physical Experiment apparatus for demonstrating |
| CN106997708B (en) * | 2017-03-31 | 2019-10-25 | 李子衿 | A kind of apparatus for demonstrating horizontal throw motion of automation |
| CN108665775A (en) * | 2018-07-16 | 2018-10-16 | 宝鸡文理学院 | A kind of physics parabola teaching aid |
| CN109192009B (en) * | 2018-10-22 | 2020-07-28 | 安徽理工大学 | University mathematics parabola demonstration teaching optimization method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120485U (en) * | 2011-04-12 | 2012-01-18 | 上海辰昊信息科技有限公司 | Horizontal projectile motion experimental instrument |
| RU2460146C1 (en) * | 2011-04-19 | 2012-08-27 | Олег Александрович Поваляев | Set for demonstrating laws of mechanics (versions), hermetically sealed magnetic sensor and device for determining instantaneous speed of body thrown horizontally |
| CN203397561U (en) * | 2013-09-09 | 2014-01-15 | 深圳科学高中 | Horizontal projectile experiment demonstrating device |
| CN103544868A (en) * | 2013-07-27 | 2014-01-29 | 苍南县利新科教仪器有限公司 | Horizontal-casting sectional demonstration experimental device and experimental method thereof |
| CN203465870U (en) * | 2013-09-29 | 2014-03-05 | 浙江师范大学 | Teaching aid for demonstrating horizontal projectile motion |
-
2014
- 2014-04-02 CN CN201410128501.8A patent/CN103943002B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120485U (en) * | 2011-04-12 | 2012-01-18 | 上海辰昊信息科技有限公司 | Horizontal projectile motion experimental instrument |
| RU2460146C1 (en) * | 2011-04-19 | 2012-08-27 | Олег Александрович Поваляев | Set for demonstrating laws of mechanics (versions), hermetically sealed magnetic sensor and device for determining instantaneous speed of body thrown horizontally |
| CN103544868A (en) * | 2013-07-27 | 2014-01-29 | 苍南县利新科教仪器有限公司 | Horizontal-casting sectional demonstration experimental device and experimental method thereof |
| CN203397561U (en) * | 2013-09-09 | 2014-01-15 | 深圳科学高中 | Horizontal projectile experiment demonstrating device |
| CN203465870U (en) * | 2013-09-29 | 2014-03-05 | 浙江师范大学 | Teaching aid for demonstrating horizontal projectile motion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103943002A (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103943002B (en) | Horizontal cast movement demonstration instrument | |
| CN107103819A (en) | A kind of physics projectile experimental demonstration device | |
| CN203895007U (en) | Circular motion comprehensive experimental platform | |
| CN206210204U (en) | A kind of Physical Experiment student experimenting device | |
| CN204155501U (en) | A kind of horizontal cast movement demonstration instrument | |
| CN104966440A (en) | Physical experiment device for demonstrating two-dimensional motion | |
| CN202677673U (en) | Experimental device for testing mechanical energy and momentum conservation | |
| CN104835389A (en) | Multifunctional physical exploration experiment demonstration instrument | |
| CN202332001U (en) | Parabolic motion locus demonstration device | |
| CN203118298U (en) | Object motion demonstration board | |
| CN108877425A (en) | A kind of high school physics study apparatus for demonstrating | |
| CN203465870U (en) | Teaching aid for demonstrating horizontal projectile motion | |
| CN207966249U (en) | A kind of teaching physical phenomenon simulator | |
| CN103971566A (en) | Circular motion comprehensive-experiment platform | |
| CN202331997U (en) | Energy conservation demonstrator | |
| CN104821120A (en) | Gravitational acceleration measuring method and device thereof | |
| CN204667723U (en) | A kind of acceleration of gravity measurement mechanism | |
| CN205334829U (en) | Flat steel ball motion laws research experiment appearance of throwing | |
| CN204667726U (en) | A kind of horizontal cast movement demonstration instrument | |
| CN201185049Y (en) | Demonstration instrument for cockleshell-on momentum conservation phenomenon | |
| CN114550558A (en) | Physical experiment teaching demonstration device | |
| CN207233263U (en) | A kind of portable apparatus for demonstrating horizontal throw motion | |
| CN210865280U (en) | Horizontal projectile motion physics teaching presentation device | |
| CN203070618U (en) | Horizontal projectile motion demonstrator | |
| CN205211265U (en) | Projectile motion's lecture experiment appearance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160511 Termination date: 20170402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |