CN102034382A - Hyperbolic graphic instrument - Google Patents
Hyperbolic graphic instrument Download PDFInfo
- Publication number
- CN102034382A CN102034382A CN2009100706733A CN200910070673A CN102034382A CN 102034382 A CN102034382 A CN 102034382A CN 2009100706733 A CN2009100706733 A CN 2009100706733A CN 200910070673 A CN200910070673 A CN 200910070673A CN 102034382 A CN102034382 A CN 102034382A
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- CN
- China
- Prior art keywords
- tooth bar
- pickup groove
- hyperbolic
- bar pickup
- shaft mechanism
- 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.)
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Abstract
The invention relates to a hyperbolic graphic instrument which is characterized in that two precise straight racks (3) and a trail pen (9) are connected with a straight gear combination (10); one of the two precise straight racks (3) is connected with a left rotating shaft mechanism (1) by a left rack fixing groove (2), and the other precise straight rack (3) is connected with a right rotating shaft mechanism (5) by a right rack fixing groove (4); an electronic coordinate display panel (6) is connected with a base (13); and a battery driving device (8), a transmission gear (11) and an inertial configurator (12) are connected with an installing box (7). The hyperbolic graphic instrument has the advantages of leading students to operate practically, verifying a relevant formula by a group of displayed relevant numbers, then substituting given numbers into the formula, calculating, then carrying out comparison with the displayed value on the electronic coordinate display panel, leading the student to have a vivid memory on the hyperbolic concept and the mutual relation between the concepts, and achieving the purposes of blending harmoniously, grasping thoroughly and improving the quality.
Description
One, technical field
The invention belongs to a kind of instruments used for education, be specifically related to a kind of hyperbolic curve diagram instrument.
Two, background technology
Hyperbolic curve is the very important knowledge of a part in the Senior High School Mathematics Curriculum, and almost Mei Nian college entrance examination all has this part content, and shared score value is all higher.This part knowledge, the student is difficult to be grasped, and is difficult to digest, and at present because there are not the instruments used for education of image reflection Hyperbolic Feature, teachers make relatively more easy instruments used for education according to the experience with students of oneself, help the student to sharpen understanding.The teacher who has is fixed on a given some F with slide fastener end points on one side
1On, chalk is fixedly mounted on the zipper head of slide fastener, will be that the some A of L is fixed on a given some F in addition with this limit end-point distances on the slide fastener another side
2On, when zipper head unzips under the situation that makes the tensioning simultaneously of slide fastener both sides, drive the chalk that is fixedly mounted on the zipper head and draw out hyperbolic curve, F
1Point and F
2Point is respectively hyp two focuses.Also have some to draw hyp method, its structure is basic identical, and these methods can only make the student see one group of not too accurate hyperbolic curve, can't show the numerical relation between notion and the notion, can not stay deep effect to the student, teaching efficiency is not really desirable.
Three, summary of the invention
Purpose of the present invention is exactly the problem at above-mentioned existence, and a kind of hyperbolic curve diagram instrument is provided, and draws out accurate hyperbolic curve.
The present invention is achieved by the following technical solutions: a kind of hyperbolic curve diagram instrument, comprise left rotary shaft mechanism 1, left tooth bar pickup groove 2, accurate spur rack 3, right tooth bar pickup groove 4, right spindle mechanism 5, track pen 9, spur gear combination 10, transmission gear 11, it is made up of left rotary shaft mechanism 1, left tooth bar pickup groove 2, accurate spur rack 3, right tooth bar pickup groove 4, right spindle mechanism 5, electronic coordinate display board 6, install bin 7, battery powered device 8, track pen 9, spur gear combination 10, transmission gear 11, inertia configurator 12, base 13; Left rotary shaft mechanism 1 is connected with base 13, left side tooth bar pickup groove 2 is connected with left rotary shaft mechanism 1, (2 are connected with right tooth bar pickup groove 4 with left tooth bar pickup groove respectively for two accurate spur racks 3, right tooth bar pickup groove 4 is connected with right spindle mechanism 5, right spindle mechanism 5 is connected with base 13, electronic coordinate display board 6 is connected with base 13, install bin 7 is connected with spur gear combination 10, battery powered device 8 is connected with install bin 7, track pen 9 is connected with spur gear combination 10, spur gear combination 10 is connected with right tooth bar pickup groove 4 with left tooth bar pickup groove 2, and transmission gear 11 makes up 10 with spur gear and is connected, and inertia configurator 12 is connected with transmission gear 11 with install bin 7.
Beneficial effect of the present invention: adopted accurate gear, rack gear, can draw out accurate hyperbolic curve according to given condition; Adopted the electronic coordinate display panel apparatus, the concrete numerical value of hyp apex coordinate, focal coordinates and hyperbolic curve independent variable and function in forming title can have been showed by the electronic coordinate display board.With clear and definite being presented on the electronic coordinate display board of relation between hyp definition, relevant notion, notion and the notion, allow students ' actual situation operate, by the one group of relevant formula of related digital verification that shows, contrast through the numerical value that shows on calculation and the electronic coordinate display board with given digital substitution formula again, make the student that the memory of an image can be arranged the mutual relationship between hyp notion and notion and the notion, accomplish to digest, reach the purpose of hyperbolic curve knowledge, raising students ' quality on top of.
Four, description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is the A-A partial enlarged drawing of Fig. 1.
Five, embodiment
A kind of hyperbolic curve diagram instrument, it is made up of left rotary shaft mechanism 1, left tooth bar pickup groove 2, accurate spur rack 3, right tooth bar pickup groove 4, right spindle mechanism 5, electronic coordinate display board 6, install bin 7, battery powered device 8, track pen 9, spur gear combination 10, transmission gear 11, inertia configurator 12, base 13; Left rotary shaft mechanism 1 is connected with base 13, left side tooth bar pickup groove 2 is connected with left rotary shaft mechanism 1, (2 are connected with right tooth bar pickup groove 4 with left tooth bar pickup groove respectively for two accurate spur racks 3, right tooth bar pickup groove 4 is connected with right spindle mechanism 5, right spindle mechanism 5 is connected with base 13, electronic coordinate display board 6 is connected with base 13, install bin 7 is connected with spur gear combination 10, battery powered device 8 is connected with install bin 7, track pen 9 is connected with spur gear combination 10, spur gear combination 10 is connected with right tooth bar pickup groove 4 with left tooth bar pickup groove 2, and transmission gear 11 makes up 10 with spur gear and is connected, and inertia configurator 12 is connected with transmission gear 11 with install bin 7.
Claims (1)
1. hyperbolic curve diagram instrument, comprise left rotary shaft mechanism (1), left side tooth bar pickup groove (2), accurate spur rack (3), right tooth bar pickup groove (4), right spindle mechanism (5), track pen (9), spur gear combination (10), transmission gear (11) is characterized in that: it is by left rotary shaft mechanism (1), left side tooth bar pickup groove (2), accurate spur rack (3), right tooth bar pickup groove (4), right spindle mechanism (5), electronic coordinate display board (6), install bin (7), battery powered device (8), track pen (9), spur gear combination (10), transmission gear (11), inertia configurator (12), base (13) is formed; Left rotary shaft mechanism (1) is connected with base (13), left side tooth bar pickup groove (2) is connected with left rotary shaft mechanism (1), two accurate spur racks (3) are connected with right tooth bar pickup groove (4) with left tooth bar pickup groove (2) respectively, right tooth bar pickup groove (4) is connected with right spindle mechanism (5), right spindle mechanism (5) is connected with base (13), electronic coordinate display board (6) is connected with base (13), install bin (7) is connected with spur gear combination (10), battery powered device (8) is connected with install bin (7), track pen (9) is connected with spur gear combination (10), spur gear combination (10) is connected with right tooth bar pickup groove (4) with left tooth bar pickup groove (2), transmission gear (11) is connected with spur gear combination (10), and inertia configurator (12) is connected with transmission gear (11) with install bin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100706733A CN102034382A (en) | 2009-09-28 | 2009-09-28 | Hyperbolic graphic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100706733A CN102034382A (en) | 2009-09-28 | 2009-09-28 | Hyperbolic graphic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102034382A true CN102034382A (en) | 2011-04-27 |
Family
ID=43887218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100706733A Pending CN102034382A (en) | 2009-09-28 | 2009-09-28 | Hyperbolic graphic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102034382A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835383A (en) * | 2015-05-08 | 2015-08-12 | 福州大学 | Demonstration mechanism for solving arc envelop and demonstration method thereof |
| CN108312748A (en) * | 2018-03-12 | 2018-07-24 | 浙江工贸职业技术学院 | A kind of multi-functional learning of higher mathematics teaching aid |
-
2009
- 2009-09-28 CN CN2009100706733A patent/CN102034382A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835383A (en) * | 2015-05-08 | 2015-08-12 | 福州大学 | Demonstration mechanism for solving arc envelop and demonstration method thereof |
| CN104835383B (en) * | 2015-05-08 | 2017-06-06 | 福州大学 | A kind of demonstration mechanism for solving arc envelope line and its demenstration method |
| CN108312748A (en) * | 2018-03-12 | 2018-07-24 | 浙江工贸职业技术学院 | A kind of multi-functional learning of higher mathematics teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110427 |