CN2101923U - Sine curve demonstration instrument - Google Patents
Sine curve demonstration instrument Download PDFInfo
- Publication number
- CN2101923U CN2101923U CN 91218745 CN91218745U CN2101923U CN 2101923 U CN2101923 U CN 2101923U CN 91218745 CN91218745 CN 91218745 CN 91218745 U CN91218745 U CN 91218745U CN 2101923 U CN2101923 U CN 2101923U
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- CN
- China
- Prior art keywords
- vector
- gear
- curve
- base
- bar
- 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.)
- Granted
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- 239000005357 flat glass Substances 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model discloses a sine curve demonstration instrument for demonstrating sine and cosine in trigonometric function, sine change rule in mechanical vibration and mechanical wave, wave form change of alternating current and the like, which comprises a base, a vector transmission mechanism, a projection rod and a curve drawing device, wherein the vector transmission mechanism is provided with a coaxial gear and a rotating vector, and the top of the rotating vector is provided with a sliding sleeve assembled on the projection rod; the projection rod is sleeved on a guide post arranged on the base; the curve drawing device is provided with a drawing pen arranged on the projection rod, a rack arranged on the base guide rail and driven by a gear, and plate glass is arranged on the rack. Simple structure and simple operation. The demonstration is quite intuitive, especially according to different requirements, the curve amplitude A, the initial phase angle * and the angular frequency omega can be adjusted, and the functions are complete.
Description
The utility model relates to a kind of sinusoidal curve demonstrator of demonstrating Changing Patterns such as trigonometric function, mechanical vibration, ac power waveform.
All available sinusoidal curves with amplitude parameter A, frequency parameter W, initial phase angle parameter phi such as the Changing Pattern of sine in the trigonometric function and cosine, mechanical vibration and mechanical wave, ac power waveform variation are represented.The sinusoidal curve instrument of existing machinery formula, though multiple functional (A, ω, the equal scalable of φ) that have, structure too numerous and jumbled (is that 88220218 sine function, oscillation and wave mathematics are used demonstrator more as the patent No.), complicated operation, cost height; Though the structure that has is simple, insufficiency can't satisfy the variation requirement of A, ω, φ, demonstration (be as the patent No. 88201142 simple harmonic oscillation and sinusoidal curve demonstrating instrument) directly perceived.
The purpose of this utility model is to overcome the defective of above-mentioned existence and a kind of simple in structure, easy and simple to handle, multiple functional sinusoidal curve demonstrator is provided.
The utlity model has base, vector gear train, shadow bar, curve drawing apparatus, the vector gear train is provided with the gear and the rotating vector of coaxial rotation, and the rotating vector top is provided with the sliding sleeve that is assemblied in the shadow bar; Shadow bar is set on the guide pillar that is installed on the base; The curve drawing apparatus is provided with the pen that is contained in the shadow bar, is contained in base rail Shang And by gear-driven tooth bar, and sheet glass is set on the tooth bar.Order about that sliding in the shadow bar of in-line gears and rotating vector left rotation and right rotation, rotating vector top horizontally slips, shadow bar slides up and down on guide pillar, the pen in the shadow bar is retouched out sinusoidal curve on the sheet glass face that moves simultaneously.
Below in conjunction with embodiment and accompanying drawing thereof the utility model is elaborated.
Fig. 1 is the front elevation of present embodiment;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B of Fig. 1 is to view.
Present embodiment is provided with base (1), vector gear train, shadow bar (4), curve drawing apparatus, and the vector gear train is provided with in-line gears and rotating vector (3), and rotating vector (3) top is provided with the sliding sleeve (5) that is assemblied in the shadow bar (4); Shadow bar (4) is set on the guide pillar (6) that is installed on the base (1), (7), and guide pillar (6), (7) upper end are fixed on the framework (22); The curve drawing apparatus is provided with the pen (8) that is contained in the shadow bar (4), (9) Shang And are by gear-driven tooth bar (10) to be contained in base (1) guide rail.Sheet glass (11) is set on the tooth bar (10).
For ease of regulating the size of amplitude A, rotating vector (3) is assembled by mandrel (13) and bolt (14) activity, axial length is adjustable, and ， And assembles by axle (15) and sliding sleeve (5) are movable, and rotating vector (3) is provided with activity vector arrow (12).
For ease of regulating the size of angular frequency, rotating vector (3) is provided with coaxial main drive gear (2A), (2B), between be provided with clutch coupling (16), clutch coupling (16) is by eccentric wheel (17) and pivoted arm (18) control, the vector gear train also is provided with respectively and main drive gear (2A), (2B) Nie He coaxial driven gear (19), (20), driven gear (20) meshes with tooth bar (10) simultaneously, main drive gear (2A), (2B), driven gear (19), (20) be installed on the bearing (23), bearing (23) fixedly is located on the base (1), main drive gear (2A) also is set on the bearing (23), (2B) and the turning handle (24) of rotating vector (3), the pressing plate (25) of setting-up eccentricity wheel (17) and pivoted arm (18), main drive gear (2A), (2B) join with active rotating shaft is moving, clutch coupling (16) can endwisely slip on active rotating shaft, driven gear (19), (20) all join with passive rotating shaft is moving.Pivoted arm (18) and pressing plate (25) can divide the left, center, right third gear by the spring latch lock structural orientation, comprise stage clip (26), the steel ball (27) that is located on the rotating disk (28) and are located at locating slot (29) on the pressing plate (25).Regulate rotating disk (28), make clutch coupling (16) be positioned at middle-grade, rotation turning handle (24), main drive gear (2A), (2B) do not work, this moment, adjustable continence was demonstrated the initial phase angle φ of curve, and initial phase angle φ shows by being positioned at the phase angle dish (21) that And is hung on the framework (22) on the sheet glass (11); When clutch coupling (16) was positioned at left side shelves, main drive gear (2A) work was by driven gear (19), (20) driving rack (10) and sheet glass (11); When clutch coupling (16) was positioned at right shelves, main drive gear (2B) work was by driven gear (20) driving rack and sheet glass.Therefore, the number of teeth of adjusting main drive gear (2A), (2B), driven gear (19), (20) can reach the purpose of adjustment curve angular frequency.Between tooth bar (10) and the guide rail (9) ball (30) is set.
The utility model only need rotate turning handle, the main drive gear rotation, drive the translation of tooth bar peace glass sheet by driven gear, simultaneously, sliding in the shadow bar of rotating vector top slided, shadow bar slides on guide pillar, pen in the shadow bar is retouched out required sinusoidal curve on the sheet glass that moves, simple in structure, easy and simple to handle, demonstrate quite directly perceived, especially according to different requirements, scalable curve amplitude A, initial phase angle φ and angular frequency, multiple functional.
Claims (4)
1, a kind of sinusoidal curve demonstrator with base, vector gear train, shadow bar, curve drawing apparatus, it is characterized in that the vector gear train is provided with in-line gears and rotating vector (3), rotating vector (3) top is provided with the sliding sleeve (5) that is assemblied in the shadow bar (4); Shadow bar (4) is set on the guide pillar (6) that is installed on the base (1), (7); The curve drawing apparatus is provided with the pen (8) that is contained in the shadow bar (4), (9) Shang And are provided with sheet glass (11) by gear-driven tooth bar (10) on the tooth bar (10) to be contained in base (1) guide rail.
2, sinusoidal curve demonstrator according to claim 1 is characterized in that establishing on the rotating vector (3) activity vector arrow (12), is assembled ， And by the movable assembling of axle (15) and sliding sleeve (5) by mandrel (13) and bolt (14) activity.
3, sinusoidal curve demonstrator according to claim 1 and 2, it is characterized in that rotating vector (3) is provided with coaxial main drive gear (2A), (2B), between be provided with clutch coupling (16), clutch coupling (16) is by eccentric wheel (17) and pivoted arm (18) control, the vector gear train also is provided with respectively coaxial driven gear (19), (20) with main drive gear (2A), (2B) engagement, and driven gear (20) meshes with tooth bar (10) simultaneously.
4, sinusoidal curve demonstrator according to claim 3 is characterized in that sheet glass (11) is provided with phase angle dish (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91218745 CN2101923U (en) | 1991-08-31 | 1991-08-31 | Sine curve demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91218745 CN2101923U (en) | 1991-08-31 | 1991-08-31 | Sine curve demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2101923U true CN2101923U (en) | 1992-04-15 |
Family
ID=4926158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91218745 Granted CN2101923U (en) | 1991-08-31 | 1991-08-31 | Sine curve demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2101923U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381106A (en) * | 2010-08-30 | 2012-03-21 | 天津职业技术师范大学 | Ruler for drawing sine wave |
| CN102622929A (en) * | 2012-03-13 | 2012-08-01 | 西华师范大学 | Multifunctional simple harmonic vibration demonstrator |
| CN104332085A (en) * | 2014-11-25 | 2015-02-04 | 南京工业职业技术学院 | Anti-tangent, cotangent, secant and cosecant function demonstrating and graph drawing instrument |
| CN104809939A (en) * | 2015-04-30 | 2015-07-29 | 陕西理工学院 | Trigonometric teaching aid |
-
1991
- 1991-08-31 CN CN 91218745 patent/CN2101923U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381106A (en) * | 2010-08-30 | 2012-03-21 | 天津职业技术师范大学 | Ruler for drawing sine wave |
| CN102622929A (en) * | 2012-03-13 | 2012-08-01 | 西华师范大学 | Multifunctional simple harmonic vibration demonstrator |
| CN102622929B (en) * | 2012-03-13 | 2014-03-26 | 西华师范大学 | Multifunctional simple harmonic vibration demonstrator |
| CN104332085A (en) * | 2014-11-25 | 2015-02-04 | 南京工业职业技术学院 | Anti-tangent, cotangent, secant and cosecant function demonstrating and graph drawing instrument |
| CN104809939A (en) * | 2015-04-30 | 2015-07-29 | 陕西理工学院 | Trigonometric teaching aid |
| CN104809939B (en) * | 2015-04-30 | 2017-03-22 | 陕西理工学院 | Trigonometric teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |