CN203752749U - Teaching tool for drawing involute - Google Patents
Teaching tool for drawing involute Download PDFInfo
- Publication number
- CN203752749U CN203752749U CN201320823864.4U CN201320823864U CN203752749U CN 203752749 U CN203752749 U CN 203752749U CN 201320823864 U CN201320823864 U CN 201320823864U CN 203752749 U CN203752749 U CN 203752749U
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- CN
- China
- Prior art keywords
- involute
- basic circle
- base circle
- bar
- drawing pen
- 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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- User Interface Of Digital Computer (AREA)
Abstract
The utility model discloses a teaching tool for drawing an involute. The teaching tool comprises a base circle rod, wherein one end of the base circle rod is connected with a centering suction disc; the other end of the base circle rod is connected with a base circle drawing pen and a slide rail at the same time; the base circle drawing pen is arranged in a base circle circular arc guide wheel; the base circle circular arc guide wheel is connected with a rack through a transmission mechanism; the slide rail is provided with the rack; the bottom of the rack is fixedly connected with an involute drawing pen. According to the teaching tool for drawing the involute, the radius of a base circle is determined by adjusting the base circle rod; the arc length passed by the base circle circular arc guide wheel is transmitted to the gear through the transmission mechanism; the rack is moved on the slide rail to draw the involute; the problems that the involute is difficult to draw and is not accurate are solved; the teaching tool for drawing the involute is simple in structure, convenient to use, standard to draw and high in precision and has a wide application value in teaching and scientific researches.
Description
Technical field
The utility model belongs to teaching aid technical field, is specifically related to a kind of involute and draws teaching aid.
Background technology
At present, on market, there is no the teaching aid in order to accurate Drawing involute specially, teacher is in the time describing involute relevant knowledge, generally a circular shaft is fixed in one plane, kinking on axle, strains a end of a thread, allows this wire-wound circular shaft motion and tangent with circular shaft all the time, on line, fixed point track in this plane is exactly involute, draws like this involute difficulty and not accurate.
Utility model content
The purpose of this utility model is to provide a kind of involute to draw teaching aid, has solved drafting involute difficulty and coarse problem.
The technical scheme that the utility model adopts is: involute is drawn teaching aid, comprise basic circle bar, one end of basic circle bar is connected with centering sucker, the basic circle bar other end is connected with slide rail with basic circle drawing pen simultaneously, on slide rail, be provided with tooth bar, basic circle drawing pen is arranged in basic circle circular arc guide wheel, and basic circle circular arc guide wheel is connected with tooth bar by transmission mechanism, and tooth bar bottom is fixedly connected with involute drawing pen.
Feature of the present utility model is also,
Transmission mechanism comprises the first bevel gear being connected with basic circle circular arc guide wheel, and the first bevel gear is connected with the second bevel gear by power transmission shaft, and the second bevel gear is connected with roller gear, the engagement of Cylinder Gear wheel and rack.
Basic circle bar is telescopic structure, and basic circle bar and slide rail are perpendicular.
Basic circle drawing pen is vertical with basic circle bar with the line of involute drawing pen.
The beneficial effects of the utility model are: the utility model involute is drawn teaching aid, determine base radius by adjusting basic circle bar, the arc length that basic circle circular arc guide wheel is passed by passes to tooth bar by transmission mechanism, tooth bar moves and draws out involute on slide rail, has solved drafting involute difficulty and coarse problem, simple in structure, easy to use, drawing specification, precision is high, in teaching and scientific research, has a wide range of applications.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model involute is drawn teaching aid;
Fig. 2 is the structural representation of basic circle drawing pen in the utility model;
Fig. 3 is the structural representation of involute drawing pen in the utility model.
In figure, 1. centering sucker, 2. basic circle bar, 3. tooth bar, 4. slide rail, 5. basic circle circular arc guide wheel, 6. the first bevel gear, 7. roller gear, 8. basic circle drawing pen, 9. involute drawing pen, 10. the second bevel gear.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The structure of the utility model involute drafting teaching aid as shown in Figure 1, comprise telescopic basic circle bar 2, one end of basic circle bar 2 is connected with centering sucker 1, basic circle bar 2 other ends are connected with slide rail 4 with basic circle drawing pen 8 simultaneously, on slide rail 4, be provided with tooth bar 3, as shown in Figure 2, basic circle drawing pen 8 is arranged in basic circle circular arc guide wheel 5, basic circle circular arc guide wheel 5 is connected with tooth bar 3 by transmission mechanism, transmission mechanism comprises the first bevel gear 6 being connected with basic circle circular arc guide wheel 5, the first bevel gear 6 is connected with the second bevel gear 10 by power transmission shaft, the second bevel gear 10 is connected with roller gear 7, roller gear 7 engages with tooth bar 3, as shown in Figure 3, tooth bar 3 bottoms are fixedly connected with involute drawing pen 9, basic circle bar 2 is perpendicular with slide rail 4, basic circle drawing pen 8 is vertical with basic circle bar 2 with the line of involute drawing pen 9.
When use, centering sucker 1 is adsorbed on blackboard, determine the basic circle center of circle, adjust the length of basic circle bar 2 and determine base radius, basic circle bar 2 turns over certain angle around the center of circle of centering sucker 1, the simultaneously basic circle circular arc guide wheel 5 corresponding arc length of passing by, this arc length is recorded by the basic circle drawing pen 8 in basic circle circular arc guide wheel 5; When basic circle bar 2 rotates, by the first bevel gear 6, the second bevel gear 10 and roller gear 7, tooth bar 3 and slide rail 4 are passed in the motion of basic circle bar 2, therefore when basic circle bar 2 moves, tooth bar 3 moves on slide rail 4, and the affixed involute drawing pen 9 in tooth bar 3 belows draws involute.
The utility model involute is drawn teaching aid, determine base radius by adjusting basic circle bar, the arc length that basic circle circular arc guide wheel is passed by passes to tooth bar by transmission mechanism, tooth bar moves and draws out involute on slide rail, has solved drafting involute difficulty and coarse problem, simple in structure, easy to use, drawing specification, precision is high, in teaching and scientific research, has a wide range of applications.
Claims (4)
1. involute is drawn teaching aid, it is characterized in that, comprise basic circle bar (2), one end of described basic circle bar (2) is connected with centering sucker (1), described basic circle bar (2) other end is connected with slide rail (4) with basic circle drawing pen (8) simultaneously, on described slide rail (4), be provided with tooth bar (3), described basic circle drawing pen (8) is arranged in basic circle circular arc guide wheel (5), described basic circle circular arc guide wheel (5) is connected with tooth bar (3) by transmission mechanism, and described tooth bar (3) bottom is fixedly connected with involute drawing pen (9).
2. involute as claimed in claim 1 is drawn teaching aid, it is characterized in that, described transmission mechanism comprises the first bevel gear (6) being connected with basic circle circular arc guide wheel (5), described the first bevel gear (6) is connected with the second bevel gear (10) by power transmission shaft, described the second bevel gear (10) is connected with roller gear (7), and described roller gear (7) engages with described tooth bar (3).
3. involute as claimed in claim 1 is drawn teaching aid, it is characterized in that, described basic circle bar (2) is telescopic structure, and described basic circle bar (2) is perpendicular with described slide rail (4).
4. involute as claimed in claim 1 is drawn teaching aid, it is characterized in that, described basic circle drawing pen (8) is vertical with described basic circle bar (2) with the line of described involute drawing pen (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823864.4U CN203752749U (en) | 2013-12-12 | 2013-12-12 | Teaching tool for drawing involute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823864.4U CN203752749U (en) | 2013-12-12 | 2013-12-12 | Teaching tool for drawing involute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203752749U true CN203752749U (en) | 2014-08-06 |
Family
ID=51248055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320823864.4U Expired - Fee Related CN203752749U (en) | 2013-12-12 | 2013-12-12 | Teaching tool for drawing involute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203752749U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904030A (en) * | 2017-04-21 | 2017-06-30 | 郑州航空工业管理学院 | A kind of PROFILE IN PLANE CONTACT OF INVOLUTE drawing instrument |
| CN108454280A (en) * | 2018-03-09 | 2018-08-28 | 合肥工业大学 | Involute plotter |
| CN113059959A (en) * | 2021-03-25 | 2021-07-02 | 萍乡学院 | Drawing equipment for preschool education |
-
2013
- 2013-12-12 CN CN201320823864.4U patent/CN203752749U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904030A (en) * | 2017-04-21 | 2017-06-30 | 郑州航空工业管理学院 | A kind of PROFILE IN PLANE CONTACT OF INVOLUTE drawing instrument |
| CN108454280A (en) * | 2018-03-09 | 2018-08-28 | 合肥工业大学 | Involute plotter |
| CN113059959A (en) * | 2021-03-25 | 2021-07-02 | 萍乡学院 | Drawing equipment for preschool education |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20161212 |