CN203910151U - Cam contour curve drawing teaching aid - Google Patents
Cam contour curve drawing teaching aid Download PDFInfo
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- CN203910151U CN203910151U CN201420197091.8U CN201420197091U CN203910151U CN 203910151 U CN203910151 U CN 203910151U CN 201420197091 U CN201420197091 U CN 201420197091U CN 203910151 U CN203910151 U CN 203910151U
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- teaching aid
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- cross bar
- cam
- gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 239000011521 glass Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 description 15
- 238000000429 assembly Methods 0.000 description 15
- 230000033001 locomotion Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
本实用新型公开了一种凸轮轮廓曲线绘制教具，属于教学工具领域。所述教具包括：盒子、动力装置、主动齿轮、L型杆、二连杆机构、可伸缩装置、小圆柱、齿条、传动齿轮以及凸轮；盒子包括第一面板，动力装置包括动力齿轮，动力装置、主动齿轮和齿条安装在第一面板上，且动力齿轮与主动齿轮啮合，二连杆机构的一端固定在主动齿轮的转动轴上，L型杆包括垂直连接的横杆和竖杆，二连杆机构的另一端与横杆的一端可转动连接，横杆的另一端与竖杆连接，且横杆的另一端上设有传动齿轮，传动齿轮与齿条啮合，凸轮固定在传动齿轮上，可伸缩装置与竖杆连接，小圆柱设于可伸缩装置上，小圆柱与凸轮相切，小圆柱上设有笔头。
The utility model discloses a teaching aid for drawing cam contour curves, which belongs to the field of teaching tools. The teaching aid includes: a box, a power unit, a driving gear, an L-shaped bar, a two-link mechanism, a retractable device, a small cylinder, a rack, a transmission gear and a cam; the box includes a first panel, the power unit includes a power gear, and the power The device, the driving gear and the rack are installed on the first panel, and the power gear is meshed with the driving gear, and one end of the two-link mechanism is fixed on the rotating shaft of the driving gear, and the L-shaped bar includes a vertically connected horizontal bar and a vertical bar, The other end of the two-link mechanism is rotatably connected to one end of the cross bar, the other end of the cross bar is connected to the vertical bar, and the other end of the cross bar is provided with a transmission gear, the transmission gear meshes with the rack, and the cam is fixed on the transmission gear. On the top, the telescopic device is connected with the vertical rod, the small cylinder is arranged on the telescopic device, the small cylinder is tangent to the cam, and the small cylinder is provided with a nib.
Description
Technical field
The utility model relates to educational aid field, and particularly a kind of cam profile curve is drawn teaching aid.
Background technology
The teaching of cam is the difficult point in mechanical principle classroom, although the mechanical teaching aid of cam also has utilization in general classroom, is using static cam as teaching aid mostly, carries out the explanation of cam knowledge.And for the cam moving, in classroom, seldom have correspondingly teaching aid.And the material that existing static cam teaching aid adopts is metal, and high expensive, carries inconvenience, although can learn corresponding knowledge point, but lack in the process learning attractive in appearance, lack artistic glamour, often teaching aid use is of a specified duration, will produce a kind of plodding sensation.
Utility model content
In order to solve the problem of prior art, the utility model embodiment provides a kind of cam profile curve to draw teaching aid.Described technical scheme is as follows:
The utility model embodiment provides a kind of cam profile curve to draw teaching aid, and described teaching aid comprises:
Box, propulsion system, driving gear, L-type bar, two linkage assemblys, telescopic mounting, small column, tooth bar, transmission gear and cam;
Described box comprises the first panel, described propulsion system comprise power gear, described propulsion system, described driving gear and described tooth bar are arranged on described the first panel, and described power gear and the engagement of described driving gear, one end of described two linkage assemblys is fixed on the rotation axis of described driving gear, described L-type bar comprises cross bar connected vertically and montant, the other end of described two linkage assemblys and one end of described cross bar are rotatably connected, the other end of described cross bar is connected with described montant, and the other end of described cross bar is provided with transmission gear, described transmission gear and the engagement of described tooth bar, described cam is fixed on described transmission gear, described telescopic mounting is connected with described montant, described small column is located on described telescopic mounting, described small column and described cam are tangent, described small column is provided with nib.
In a kind of implementation of the utility model embodiment, described propulsion system comprise clockwork spring, and described clockwork spring is connected with described power gear.
In the another kind of implementation of the utility model embodiment, described teaching aid also comprises chute, described box also comprises the second panel be arrangeding in parallel with described the first panel, described the first panel is connected by side plate with described the second panel, described cross bar is arranged in described chute, and described chute is fixed on described the second panel.
In the another kind of implementation of the utility model embodiment, described nib is close to described the second panel.
In the another kind of implementation of the utility model embodiment, described the first panel and described the second panel are glass plastic panel.
In the another kind of implementation of the utility model embodiment, described two linkage assemblys comprise the first cross bar and the second cross bar, one end of described the first cross bar and the second cross bar is rotatably connected, the other end of described the first cross bar and described L-type bar are rotatably connected, and the other end of described the second cross bar is fixed on the rotation axis of described driving gear.
In the another kind of implementation of the utility model embodiment, described telescopic mounting is sleeve, and described sleeve is connected slidably with described montant.
In the another kind of implementation of the utility model embodiment, described telescopic mounting is spring assembly, and described spring assembly is connected with described montant.
In the another kind of implementation of the utility model embodiment, described teaching aid also comprises base, and described box is arranged on described base.
In the another kind of implementation of the utility model embodiment, described teaching aid also comprises hook, and described hook is arranged on described box.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
By being arranged on propulsion system on the first panel, driving gear and tooth bar, the power gear of propulsion system and driving gear engagement, L-type bar comprises cross bar connected vertically and montant, one end of two linkage assemblys is fixed on the rotation axis of driving gear, the other end of two linkage assemblys and one end of cross bar are rotatably connected, the other end of cross bar is connected with montant, during propulsion system work, drive driving gear to rotate, driving gear drives L-type bar slidably reciprocating by two linkage assemblys, and the other end of cross bar is also provided with transmission gear, the engagement of driving cog wheel and rack, so transmission gear back and forth movement on tooth bar, because cam is fixed on transmission gear, so when transmission gear rotates, cam also rotates, due to cam and small column tangent, therefore, small column can move along the montant of L-type bar, and in another direction, small column also can be along with the beam movement of L-type bar, in this motion process, the movement locus of small column is a cam profile curve, nib is set on small column can be depicted this cam profile curve, for observing, study and research, this teaching aid is not only vivid, easy to use and carry, and cost is low, allow mechanical classroom be full of vividness and artistry.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation that the cam profile curve that provides of the utility model embodiment is drawn teaching aid;
Fig. 2 is the structural representation that the cam profile curve that provides of the utility model embodiment is drawn teaching aid.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Embodiment
The utility model embodiment provides a kind of cam profile curve to draw teaching aid, and referring to Fig. 1 and 2, this teaching aid comprises:
Box 1, propulsion system 2, driving gear 3, L-type bar 4, two linkage assemblys 5, telescopic mounting 6, small column 7, tooth bar 8, transmission gear 9 and cam 10;
Box 1 comprises the first panel, propulsion system 2 comprise power gear 2a, propulsion system 2, driving gear 3 and tooth bar 8 are arranged on the first panel, and power gear 2a and driving gear 3 engagements, one end of two linkage assemblys 5 is fixed on the rotation axis of driving gear 3, L-type bar 4 comprises cross bar 41 connected vertically and montant 42, one end of the other end of two linkage assemblys 5 and cross bar 41 is rotatably connected, the other end of cross bar 41 is connected with montant 42, and the other end of cross bar 41 is provided with transmission gear 9, transmission gear 9 and tooth bar 8 engagements, cam 10 is fixed on transmission gear 9, telescopic mounting 6 is connected with montant 42, small column 7 is located on telescopic mounting 6, small column 7 is tangent with cam 10, small column 7 is provided with nib.
In the present embodiment, propulsion system 2 comprise clockwork spring, and clockwork spring is connected with power gear 2a.In other embodiments, these propulsion system 2 can also be comprised of equipment such as electro-motors.
Further, this teaching aid also comprises chute 4a, and box 1 also comprises the second panel be arrangeding in parallel with the first panel, and the first panel is connected by side plate with the second panel, and cross bar 41 is arranged in chute 4a, and chute 4a is fixed on the second panel.
In addition, in the present embodiment, above-mentioned nib can also be close to the second panel, so that nib can be drawn on the second panel.
When propulsion system 2 are opened, drive driving gear 3 to rotate, driving gear 3 drives L-type bar 4 to slidably reciprocate in chute 4a by two linkage assemblys 5, correspondingly, transmission gear 9 is back and forth movement on tooth bar 8, when transmission gear 9 rotates, cam 10 also rotates, because cam 10 and small column 7 are tangent, therefore, small column 7 can move along the montant 42 of L-type bar 4, and in another direction, small column 7 also can be along with cross bar 41 motions of L-type bar 4, and therefore, in this motion process, the movement locus of small column 7 is cam profile curves.Nib is set on small column 7 and this cam profile curve can be depicted on the second transparent panel, for observing, learn and research, for example, calculate cam profile curve equation.
In the present embodiment, the first panel and the second panel are glass plastic panel.Adopting glass plastic to make the box of teaching aid can weight reduction, is convenient for carrying and moves, and cost is low.
Referring to Fig. 1 and 2, two linkage assemblys 5 comprise the first cross bar 52 and the second cross bar 51, one end of the first cross bar 52 and the second cross bar 51 is rotatably connected, and the other end of the first cross bar 52 and L-type bar 4 are rotatably connected, and the other end of the second cross bar 51 is fixed on the rotation axis of driving gear 3.
In the present embodiment, telescopic mounting 6 can be sleeve, and sleeve is connected slidably with montant 42.
In other embodiments, telescopic mounting 6 can also be spring assembly, and spring assembly is connected with montant 42.
Further, this teaching aid can also comprise base, and box 1 is arranged on base.Thereby easy to use, guarantee stationarity, and not easy to wear.
Further, this teaching aid also comprises hook, and hook is arranged on box 1.The used time facilitate teaching aid can not hung placement.
When specific implementation, propulsion system 2 and driving gear 3 are arranged on the first panel by web member, and web member comprises screw bolt and nut.
When specific implementation, chute 4a can stick on the second panel by glue.
Further, on the second panel, can also print the knowledge point relevant to cam profile curve, during convenient this teaching aid of observation, learn, allow mechanical classroom be full of vividness and artistry.
Further, can also on the gear in this teaching aid, glue note picture, to strengthen the aesthetic measure of teaching aid.
The utility model embodiment is by being arranged on propulsion system on the first panel, driving gear and tooth bar, the power gear of propulsion system and driving gear engagement, L-type bar comprises cross bar connected vertically and montant, one end of two linkage assemblys is fixed on the rotation axis of driving gear, the other end of two linkage assemblys and one end of cross bar are rotatably connected, the other end of cross bar is connected with montant, during propulsion system work, drive driving gear to rotate, driving gear drives L-type bar slidably reciprocating by two linkage assemblys, and the other end of cross bar is also provided with transmission gear, the engagement of driving cog wheel and rack, so transmission gear back and forth movement on tooth bar, because cam is fixed on transmission gear, so when transmission gear rotates, cam also rotates, due to cam and small column tangent, therefore, small column can move along the montant of L-type bar, and in another direction, small column also can be along with the beam movement of L-type bar, in this motion process, the movement locus of small column is a cam profile curve, nib is set on small column can be depicted this cam profile curve, for observing, study and research, this teaching aid is not only vivid, easy to use and carry, and cost is low, allow mechanical classroom be full of vividness and artistry.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197091.8U CN203910151U (en) | 2014-04-22 | 2014-04-22 | Cam contour curve drawing teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197091.8U CN203910151U (en) | 2014-04-22 | 2014-04-22 | Cam contour curve drawing teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910151U true CN203910151U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420197091.8U Expired - Fee Related CN203910151U (en) | 2014-04-22 | 2014-04-22 | Cam contour curve drawing teaching aid |
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| Country | Link |
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| CN (1) | CN203910151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008694A (en) * | 2014-04-22 | 2014-08-27 | 江汉大学 | Teaching aid for drawing contour curve of cam |
| CN106594217A (en) * | 2016-12-07 | 2017-04-26 | 芜湖木木游乐设备有限公司 | Drive device for reciprocation of robot |
-
2014
- 2014-04-22 CN CN201420197091.8U patent/CN203910151U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008694A (en) * | 2014-04-22 | 2014-08-27 | 江汉大学 | Teaching aid for drawing contour curve of cam |
| CN104008694B (en) * | 2014-04-22 | 2016-03-09 | 江汉大学 | Cam profile curve draws teaching aid |
| CN106594217A (en) * | 2016-12-07 | 2017-04-26 | 芜湖木木游乐设备有限公司 | Drive device for reciprocation of robot |
| CN106594217B (en) * | 2016-12-07 | 2019-11-15 | 龙南骏亚精密电路有限公司 | A kind of robot uses driving device back and forth |
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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: 20141029 Termination date: 20160422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |