CN203773799U - Centripetal force teaching experiment device - Google Patents
Centripetal force teaching experiment device Download PDFInfo
- Publication number
- CN203773799U CN203773799U CN201420182195.1U CN201420182195U CN203773799U CN 203773799 U CN203773799 U CN 203773799U CN 201420182195 U CN201420182195 U CN 201420182195U CN 203773799 U CN203773799 U CN 203773799U
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- CN
- China
- Prior art keywords
- inverted trapezoidal
- centripetal force
- experiment device
- trapezoidal chute
- module
- 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
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model relates to a centripetal force teaching experiment device. The scheme is that the centripetal force teaching experiment device comprises a pedestal which is internally provided with a speed regulating motor. An output shaft of the speed regulating motor is connected with a rotating shaft stretching out of the pedestal via a coupler. The upper end of the rotating shaft is provided with a rotating disc. The upper end surface of the rotating disc is provided with an inverted trapezoidal slide groove along a radius direction. The two sides of the inverted trapezoidal slide groove are respectively provided with slide rods. Fixing bodies, which slidably sleeve the slide rods, are arranged above the inverted trapezoidal slide groove. Fastening bolts are arranged between the fixing bodies and the slide rods. Pressure induction sheets arranged in the inverted trapezoidal slide groove are fixed on the internal side surfaces of the fixing bodies. The rotating disc arranged at the external side of the inverted trapezoidal slide groove is provided with a scale layer which is parallel with the rotating disc. Change of centripetal force can be conveniently and visually observed according to change of centripetal radius, ball mass and rotating speed so that the centripetal force teaching experiment device is suitable for centripetal force teaching.
Description
Technical field
The utility model relates to mechanics teaching experimental provision, particularly a kind of centripetal force experiment device for teaching.
Background technology
Centripetal force is the power of the sensing center of curvature required when particle is moved along a curved path, external force along the radius sensing center of circle when object moves in a circle is called centripetal force, because centripetal force cannot detect by an unaided eye, so must use experimental facilities could observe intuitively the action effect of centripetal force in actual teaching process, therefore inventing a kind of centripetal force experimental provision that can conveniently observe is a urgent problem.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the utility model is just to provide a kind of centripetal force experiment device for teaching, and it can observe the size of centripetal force in real time according to rotating speed, point mass and radius-of-curvature, easy to use.
The technical scheme of its solution is, comprise base, buncher is housed in base, the output shaft of buncher is connected with the rotating shaft of protuberate basic unit through shaft coupling, rotating disk is equipped with in rotating shaft upper end, on rotating disk upper surface, there is the inverted trapezoidal chute along radial direction, inverted trapezoidal chute both sides are respectively equipped with slide bar, inverted trapezoidal chute top has slip cap to be contained in the fixed body on slide bar, between fixed body and slide bar, be provided with fastening bolt, on fixed body medial surface, be fixed with the pressure sensitive sheet being placed in inverted trapezoidal chute, pressure sensitive sheet is connected with signal acquisition module, signal acquisition module is connected with wireless signal sending module, wireless signal sending module is connected with the reception of wireless signals module being placed in base, reception of wireless signals module is connected with A/D analog-to-digital conversion module, A/D analog-to-digital conversion module is connected with PLC control system, PLC control system is connected with display and the control panel being placed in outside base, rotating shaft is provided with the speed probe being connected in PLC control system, buncher is connected in PLC control system, on the rotating disk in inverted trapezoidal chute outside, there is scale layer in parallel.
The utility model can facilitate the variation of observing intuitively centripetal force according to the variation of centripetal radius, bead quality and rotating speed, is applicable to the use in centripetal force teaching.
Accompanying drawing explanation
Fig. 1 is main TV structure figure of the present utility model.
Fig. 2 is Fig. 1 vertical view.
Fig. 3 is the utility model circuit connection structure block diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
By Fig. 1 to Fig. 3, provided, the utility model comprises base, buncher 2 is housed in base 1, the output shaft of buncher 2 is connected with the rotating shaft 4 of protuberate basic unit 1 through shaft coupling 3, rotating disk 5 is equipped with in rotating shaft 4 upper ends, on rotating disk 5 upper surfaces, there is the inverted trapezoidal chute 6 along radial direction, inverted trapezoidal chute 6 both sides are respectively equipped with slide bar 7, inverted trapezoidal chute 6 tops have slip cap to be contained in the fixed body 8 on slide bar 7, between fixed body 8 and slide bar 7, be provided with fastening bolt 9, on fixed body 8 medial surfaces, be fixed with the pressure sensitive sheet 10 being placed in inverted trapezoidal chute 6, pressure sensitive sheet 10 is connected with signal acquisition module 11, signal acquisition module 11 is connected with wireless signal sending module 12, wireless signal sending module 12 is connected with the reception of wireless signals module 13 being placed in base 1, reception of wireless signals module 13 is connected with A/D analog-to-digital conversion module 14, A/D analog-to-digital conversion module 14 is connected with PLC control system 15, PLC control system 15 is connected with display 16 and the control panel 17 being placed in outside base 1, rotating shaft 4 is provided with the speed probe 18 being connected in PLC control system 15, buncher 2 is connected in PLC control system 15, on the rotating disk 5 in inverted trapezoidal chute 6 outsides, there is scale layer 19 in parallel.
Described base 1 lower end is evenly equipped with three foot bolt 20, and spirit bubble 21 is housed on rotating disk 5.
Described speed probe 16 is digital speed probe.
Described inverted trapezoidal chute 6 upper ends are slidably equipped with cover plate 22 along radial direction, when using, cover plate 22 can be breakked away, and withstand fixed body 8, and cover plate 22 can prevent that in the process of rotating disk 5 High Rotation Speeds bead from flying out.
When the utility model is used, can select respectively different quality bead to put in inverted trapezoidal chute 6, then through control panel 17, open buncher 2, buncher 2 drives rotating disk 5 to rotate, now fixed body 8 is given thrust of bead through pressure sensitive sheet 10, this thrust equals the centripetal force of bead, pressure sensitive sheet 10 passes to signal acquisition module 11 by signal, signal acquisition module 11 passes to wireless signal sending module 12 by signal, wireless signal sending module 12 passes to reception of wireless signals module 13 by signal, through A/D analog-to-digital conversion module 14, passing to PLC control system 15 more afterwards processes, through display 16, show afterwards, people can observe centripetal force through display 16, in testing process, can read according to speed probe 18 rotating speed of rotating disk 5, and then regulate buncher 2 to regulate the rotating speed of rotating disk 5, can judge that bead is to the distance in rotating disk 5 centers of circle according to scale layer 19, according to rotating speed and bead, to the distance in rotating disk 5 centers of circle, can converse bead speed, can on slide bar 7, regulate fixed body 8 to the distance in rotating disk 5 centers of circle, and then regulate bead to the distance in the center of circle, can be through the fixing position of fixed body 8 of fastening bolt 9, can regulate according to spirit bubble 21 and foot bolt 20 levelness of rotating disk 5.
The utility model can facilitate the variation of observing intuitively centripetal force according to the variation of centripetal radius, bead quality and rotating speed, is applicable to the use in centripetal force teaching.
Claims (3)
1. a centripetal force experiment device for teaching, comprise base, it is characterized in that, buncher (2) is housed in base (1), the output shaft of buncher (2) is connected with the rotating shaft (4) of protuberate basic unit (1) through shaft coupling (3), rotating disk (5) is equipped with in rotating shaft (4) upper end, on rotating disk (5) upper surface, there is the inverted trapezoidal chute (6) along radial direction, inverted trapezoidal chute (6) both sides are respectively equipped with slide bar (7), inverted trapezoidal chute (6) top has slip cap to be contained in the fixed body (8) on slide bar (7), between fixed body (8) and slide bar (7), be provided with fastening bolt (9), on fixed body (8) medial surface, be fixed with the pressure sensitive sheet (10) being placed in inverted trapezoidal chute (6), pressure sensitive sheet (10) is connected with signal acquisition module (11), signal acquisition module (11) is connected with wireless signal sending module (12), wireless signal sending module (12) is connected with the reception of wireless signals module (13) being placed in base (1), reception of wireless signals module (13) is connected with A/D analog-to-digital conversion module (14), A/D analog-to-digital conversion module (14) is connected with PLC control system (15), PLC control system (15) is connected with and is placed in base (1) outer display (16) and control panel (17), rotating shaft (4) is provided with the speed probe (18) being connected in PLC control system (15), buncher (2) is connected in PLC control system (15), on the rotating disk (5) in inverted trapezoidal chute (6) outside, there is scale layer (19) in parallel.
2. a kind of centripetal force experiment device for teaching according to claim 1, is characterized in that, described base (1) lower end is evenly equipped with three foot bolt (20), and spirit bubble (21) is housed on rotating disk (5).
3. a kind of centripetal force experiment device for teaching according to claim 1, is characterized in that, described inverted trapezoidal chute (6) upper end is slidably equipped with cover plate (22) along radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182195.1U CN203773799U (en) | 2014-04-16 | 2014-04-16 | Centripetal force teaching experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182195.1U CN203773799U (en) | 2014-04-16 | 2014-04-16 | Centripetal force teaching experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773799U true CN203773799U (en) | 2014-08-13 |
Family
ID=51290959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420182195.1U Expired - Fee Related CN203773799U (en) | 2014-04-16 | 2014-04-16 | Centripetal force teaching experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389479A (en) * | 2017-12-18 | 2018-08-10 | 唐山师范学院 | Centripetal force experimental apparatus |
| CN110349479A (en) * | 2019-06-21 | 2019-10-18 | 黄书畅 | Circular motion instructional device and application method |
-
2014
- 2014-04-16 CN CN201420182195.1U patent/CN203773799U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389479A (en) * | 2017-12-18 | 2018-08-10 | 唐山师范学院 | Centripetal force experimental apparatus |
| CN110349479A (en) * | 2019-06-21 | 2019-10-18 | 黄书畅 | Circular motion instructional device and application method |
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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: 20140813 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |