CN103943002A - Horizontal cast movement demonstration instrument - Google Patents
Horizontal cast movement demonstration instrument Download PDFInfo
- Publication number
- CN103943002A CN103943002A CN201410128501.8A CN201410128501A CN103943002A CN 103943002 A CN103943002 A CN 103943002A CN 201410128501 A CN201410128501 A CN 201410128501A CN 103943002 A CN103943002 A CN 103943002A
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- opening
- cylinder
- demonstration instrument
- lifting device
- horizontal cast
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Abstract
The invention discloses a horizontal cast movement demonstration instrument which comprises a rectangular bottom plate (1). A speed regulation motor (3), a motor shaft and a vertical spiral lifting device are arranged on the bottom plate (1). The spiral lifting device is contained in a cylinder (6) and contains a set of small test balls (7). The spiral lifting device is fixed through a supporting device. A first opening (12) is formed in the upper portion of the cylinder and connected with a tubular horizontal cast rail (13). A second opening (14) is formed in the lower portion of the cylinder and connected with an arc-shaped recycling groove (15). The first opening and the second opening are both located in one side of the cylinder. A rear vertical plate (16) which is vertical is arranged, and a measuring device is arranged on the rear vertical plate. According to the scheme, a student can obtain a vivid parabolic path of a ball which does horizontal cast movement.
Description
Technical field
The present invention relates generally to a kind of physics facility, particularly demonstrating level throw motion rule demonstrating experiment device used.
Background technology
In physics facility, especially, in dynamics experimental device, often to relate to the characteristics of motion of demonstrating level throw motion.We know a kind of special circumstances in projectile motion, initial velocity direction along continuous straight runs when object is dished out, and object has horizontal initial rate, and the curvilinear motion of only doing under Action of Gravity Field is called level throw motion.In the time analyzing level throw motion, we can be decomposed into level throw motion two componental movements of horizontal direction and vertical direction.The motion of horizontal direction is linear uniform motion, and vertical direction is the movement of falling object.In order to reach in physics teaching studying rule of horizontal projectile movement, describe flat paraboloid movement locus, checking level throw motion is the resultant motion of horizontal forward linear uniform motion and the movement of falling object vertically downward, 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 the projectile motion time is short, speed is fast, student does not see the movement locus of projectile at all, existing demonstration instrument great majority can not present the track of level throw motion, although the utility model patent that some horizontal cast movement demonstration instruments are CN87205180 as the patent No. is inhaled and is put part with magnetic force, projectile is put in suction, substitute and roll with translation, in the time that object is made level throw motion, utilization is fixed on nib on projectile and the coordinate paper " soft " of steel track record panel contacts, once automatic accurately depict a clear movement locus.But this demonstration instrument to student to feel that projectile is made projectile in translation and their imagination not quite alike, same this demonstration instrument is still because projectile motion speed is too fast, give the time of observation of students too short, student is at all not deep to the reflection of level throw motion.The utility model patent that and for example patent No. is 201120106303, when it utilizes sensor technology to obtain projectile motion, precise time is measured, and can record the time value of bead motion, and show measured time value data, also realize and allowed education experiment and computer combine.But this invention does not still solve the problem that projectile motion track presents, student still must draw by teacher's theoretical analysis for the understanding of projectile motion track.So teacher can only pass through multimedia courseware or these traditional ways of stroboscopic photograph for the movement locus of projectile being presented to student.Also the horizontal cast movement demonstration instrument having adopts in the high bottle side hanging and lays a horizontal pipe, present the track of projectile motion with the current that spray in pipe, but this demonstration instrument can not demonstration this track in visual pattern ground be to be produced by projectile motion.Therefore, above method all can not make the movement characteristic of student's visual understanding level throw motion, and 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, make the characteristics of motion of the fine demonstrating level throw motion of demonstration instrument energy, allow student not only can see that the projectile of level throw motion is a bead, consistent with the projectile in student's imagination, can also allow student see that the track of projectile motion is a para-curve simultaneously, also can record projectile coordinate at a time simultaneously, 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, there is a rectangular base plate, one buncher 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, and accommodate battery of tests bead, described screw lifting device is by bracing or strutting arrangement fixed position, there is one first opening on the top of cylinder, opening connects the flat track of throwing of a tubular type, one second opening is arranged at the bottom of cylinder, the second opening is connected with an arc accumulator tank, the first opening, the second opening is all in cylinder one side, be provided with a vertical back vertical plate, 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, has overcome the deficiency of known technology, thereby has 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 vertical 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.
Embodiment
As shown in Figure 1, described horizontal cast movement demonstration instrument has a rectangular base plate 1, base screw 2 is equipped with in base plate lower end, buncher 3 is equipped with in one end above base plate, motor shaft is connected with a screw lifting device of vertically installing, in the middle of described screw lifting device, there is 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, fill test pellet 7 along flight 5, described bead makes with plastics, the bearing seat 8 of vertical shaft 4 upper ends is fixed on upper backup pad 9 by flange, the two ends of upper backup pad are supported by left riser 10 and right riser 11, left riser and right riser are fixed on two minor faces of rectangular base 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, do flat outlet of throwing test as bead 7, the lower end of cylinder 6 has one second opening 14 to be connected with arc accumulator tank 15, the bottom of groove is lined with sponge, the first described opening and the second opening are all in cylinder 6 the same sides, flat throwing track 13 and arc accumulator tank 15 are all in same plane, arc accumulator tank 15 other ends are supported by right riser 11, a back vertical plate 16 of right riser 11 and upper backup pad 9 common supports, the plate face of back vertical plate is respectively decorated with one group of lines along transverse direction and vertical direction, two groups of lines intersect becomes lattice one by one, make the coordinate of parabolic motion as metering bead, at back vertical plate transverse direction and vertical direction, one laser pen 17 is all installed, under the guide of coordinate, can laser pen be beaten on same bead simultaneously.Laser pen 17 use wing nuts 18 are arranged on open slot 19, slide and can regulate the position of laser pen, as measurement mechanism, as shown in Figure 3 along open slot.
Knob 20 in Fig. 2 is that buncher speed governing is used.
When this device uses, open buncher, and adjust rotating speed, bead 7, under the drive of helical blade, enters the flat track 13 of throwing along lifting gear, falls with certain initial velocity from the end of track from the flat throwing track of level, the vertical back vertical plate 16 below of the movement locus of dishing out at bead, and two laser pens, in the time that two light beams are beaten on same bead, the corresponding formula of coordinate utilization of writing down studied bead just can calculate speed and the displacement of level throw motion.In the time that bead drops to the bottom of coordinatometer, 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.The bead of being caught by arc accumulator tank like this enters helical blade along track and enters lifting gear.In the time that buncher rotates with friction speed, plastic beads 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 just clearly presents before coordinatometer, and image has in the extreme 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 para-curve.
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, it is characterized in that: have 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.
2. a kind of horizontal cast movement demonstration instrument according to claim 1, is characterized in that: in the middle of described screw lifting device, have 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, it is characterized in that: the bearing seat (8) of vertical shaft (4) upper end is fixed on upper backup pad (9) by flange, the two ends of upper backup pad are supported by left riser (10) and right riser (11), left riser and right riser are fixed on two minor faces of rectangular base plate (1), form portal frame, described portal frame forms the bracing or strutting arrangement of screw lifting device.
4. a kind of horizontal cast movement demonstration instrument according to claim 1, is characterized in that: flat throwing track (13) and arc accumulator tank (15) are in same plane.
5. a kind of horizontal cast movement demonstration instrument according to claim 1, it is characterized in that: arc accumulator tank (15) other end is supported by right riser (11), right riser (11) supports a back vertical plate (16) jointly with upper backup pad (9), the plate face of back vertical plate is respectively decorated with one group of lines along transverse direction and vertical direction, two groups of lines intersect becomes lattice one by one, makes the coordinate of parabolic motion as metering bead.
6. a kind of horizontal cast movement demonstration instrument according to claim 1 or 5, it is characterized in that: at back vertical plate transverse direction and vertical direction, one laser pen (17) is all installed, under the guide of coordinate, can laser pen be beaten on same bead simultaneously, wing nut for laser pen (18) is arranged on open slot (19), slide and can regulate the position of laser pen along open slot, as measurement mechanism.
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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128501.8A CN103943002B (en) | 2014-04-02 | 2014-04-02 | Horizontal cast movement demonstration instrument |
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| Publication Number | Publication Date |
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| CN103943002A true CN103943002A (en) | 2014-07-23 |
| CN103943002B CN103943002B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410128501.8A Expired - Fee Related CN103943002B (en) | 2014-04-02 | 2014-04-02 | Horizontal cast movement demonstration instrument |
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Cited By (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 |
| CN106991878A (en) * | 2017-03-31 | 2017-07-28 | 白甲 | A kind of level throw motion Physical Experiment apparatus for demonstrating |
| CN106997708A (en) * | 2017-03-31 | 2017-08-01 | 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 |
| CN109192009A (en) * | 2018-10-22 | 2019-01-11 | 安徽理工大学 | A kind of College Maths parabola teaching demonstration 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 |
Cited By (7)
| 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 |
| CN106991878A (en) * | 2017-03-31 | 2017-07-28 | 白甲 | A kind of level throw motion Physical Experiment apparatus for demonstrating |
| CN106997708A (en) * | 2017-03-31 | 2017-08-01 | 李子衿 | A kind of apparatus for demonstrating horizontal throw motion of automation |
| 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 |
| CN109192009A (en) * | 2018-10-22 | 2019-01-11 | 安徽理工大学 | A kind of College Maths parabola teaching demonstration optimization method |
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| Publication number | Publication date |
|---|---|
| CN103943002B (en) | 2016-05-11 |
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Granted publication date: 20160511 Termination date: 20170402 |