CN104008694A - Teaching aid for drawing contour curve of cam - Google Patents
Teaching aid for drawing contour curve of cam Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及教学工具领域，特别涉及一种凸轮轮廓曲线绘制教具。The invention relates to the field of teaching tools, in particular to a teaching tool for drawing cam contour curves.
背景技术Background technique
凸轮的教学是机械原理课堂中的难点，凸轮的机械教具虽然在一般的课堂中也有运用，但大多是将静止的凸轮作为教具，进行凸轮知识的讲解。而对于运动的凸轮，在课堂中则很少有相应地教具。并且现有的静止的凸轮教具采用的材料是金属，成本偏高，携带不便，虽然能够学习相应的知识点，但是却缺乏美观在学习的过程中，缺少艺术的魅力，往往教具使用久了，就会产生一种单调乏味的感觉。The teaching of cams is a difficult point in the classroom of mechanical principles. Although the mechanical teaching aids of cams are also used in general classrooms, most of them use stationary cams as teaching aids to explain cam knowledge. As for the moving cam, there are few corresponding teaching aids in the classroom. And the material used in the existing static cam teaching aids is metal, the cost is high, and it is inconvenient to carry. Although it can learn the corresponding knowledge points, it lacks the beauty. In the process of learning, it lacks the charm of art, and the teaching aids are often used for a long time. It creates a sense of monotony.
发明内容Contents of the invention
为了解决现有技术的问题，本发明实施例提供了一种凸轮轮廓曲线绘制教具。所述技术方案如下：In order to solve the problems in the prior art, an embodiment of the present invention provides a cam profile drawing teaching aid. Described technical scheme is as follows:
本发明实施例提供了一种凸轮轮廓曲线绘制教具，所述教具包括：An embodiment of the present invention provides a teaching aid for drawing a cam profile curve, and the teaching aid includes:
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；Box, power unit, driving gear, L-shaped rod, two-link mechanism, telescopic device, small cylinder, rack, transmission gear and cam;
所述盒子包括第一面板，所述动力装置包括动力齿轮，所述动力装置、所述主动齿轮和所述齿条安装在所述第一面板上，且所述动力齿轮与所述主动齿轮啮合，所述二连杆机构的一端固定在所述主动齿轮的转动轴上，所述L型杆包括垂直连接的横杆和竖杆，所述二连杆机构的另一端与所述横杆的一端可转动连接，所述横杆的另一端与所述竖杆连接，且所述横杆的另一端上设有传动齿轮，所述传动齿轮与所述齿条啮合，所述凸轮固定在所述传动齿轮上，所述可伸缩装置与所述竖杆连接，所述小圆柱设于所述可伸缩装置上，所述小圆柱与所述凸轮相切，所述小圆柱上设有笔头。The box includes a first panel, the power unit includes a power gear, the power unit, the driving gear and the rack are installed on the first panel, and the power gear meshes with the driving gear , one end of the two linkages is fixed on the rotating shaft of the driving gear, the L-shaped bar includes a vertically connected cross bar and a vertical bar, the other end of the two linkages is connected to the cross bar One end is rotatably connected, the other end of the cross bar is connected with 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 On the transmission gear, 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 a nib is arranged on the small cylinder.
在本发明实施例的一种实现方式中，所述动力装置包括发条，所述发条与所述动力齿轮连接。In an implementation manner of the embodiment of the present invention, the power device includes a spring, and the spring is connected to the power gear.
在本发明实施例的另一种实现方式中，所述教具还包括滑槽，所述盒子还包括与所述第一面板平行设置的第二面板，所述第一面板和所述第二面板通过侧板连接，所述横杆设置在所述滑槽中，所述滑槽固定在所述第二面板上。In another implementation manner of the embodiment of the present invention, the teaching aid further includes a chute, and the box further includes a second panel arranged parallel to the first panel, and the first panel and the second panel Connected by side plates, the cross bar is arranged in the chute, and the chute is fixed on the second panel.
在本发明实施例的另一种实现方式中，所述笔头紧贴所述第二平面。In another implementation manner of the embodiment of the present invention, the nib is in close contact with the second plane.
在本发明实施例的另一种实现方式中，所述第一面板和所述第二面板为玻璃塑料面板。In another implementation manner of the embodiment of the present invention, the first panel and the second panel are glass-plastic panels.
在本发明实施例的另一种实现方式中，所述二连杆机构包括第一横杆和第二横杆，所述第一横杆和第二横杆的一端可转动连接，所述第一横杆的另一端与所述L型杆可转动连接，所述第二横杆的另一端固定在所述主动齿轮的转动轴上。In another implementation manner of the embodiment of the present invention, the two-bar linkage mechanism includes a first crossbar and a second crossbar, one end of the first crossbar and the second crossbar are rotatably connected, and the first crossbar and the second crossbar are rotatably connected. The other end of a cross bar is rotatably connected to the L-shaped bar, and the other end of the second cross bar is fixed on the rotating shaft of the driving gear.
在本发明实施例的另一种实现方式中，所述可伸缩装置为套筒，所述套筒与所述竖杆可滑动地连接。In another implementation manner of the embodiment of the present invention, the telescopic device is a sleeve, and the sleeve is slidably connected to the vertical rod.
在本发明实施例的另一种实现方式中，所述可伸缩装置为弹簧装置，所述弹簧装置与所述竖杆连接。In another implementation manner of the embodiment of the present invention, the retractable device is a spring device, and the spring device is connected to the vertical rod.
在本发明实施例的另一种实现方式中，所述教具还包括底座，所述盒子设置在所述底座上。In another implementation manner of the embodiment of the present invention, the teaching aid further includes a base, and the box is arranged on the base.
在本发明实施例的另一种实现方式中，所述教具还包括挂钩，所述挂钩设置在所述盒子上。In another implementation manner of the embodiment of the present invention, the teaching aid further includes a hook, and the hook is arranged on the box.
本发明实施例提供的技术方案带来的有益效果是：The beneficial effects brought by the technical solution provided by the embodiments of the present invention are:
通过设置在第一面板上动力装置、主动齿轮和齿条，动力装置的动力齿轮与主动齿轮啮合，L型杆包括垂直连接的横杆和竖杆，二连杆机构的一端固定在主动齿轮的转动轴上，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，动力装置工作时带动主动齿轮转动，主动齿轮通过二连杆机构带动L型杆在来回滑动，而横杆的另一端还设有传动齿轮，传动齿轮与齿条啮合，因此传动齿轮在齿条上往返运动，由于凸轮固定在传动齿轮上，所以在传动齿轮转动时，凸轮也转动，由于凸轮与小圆柱相切，因此，小圆柱会沿着L型杆的竖杆运动，而另一个方向上，小圆柱还会随着L型杆的横杆运动，在此运动过程中，小圆柱的运动轨迹是一个凸轮轮廓曲线，在小圆柱上设置笔头可以将该凸轮轮廓曲线描绘出来，以用于观察、学习和研究，该教具不但生动形象，使用和携带方便，且成本低，让机械课堂充满生动性和艺术性。The power gear of the power device meshes with the drive gear by being arranged on the first panel, the power gear and the drive gear. On the rotating shaft, the other end of the two-link mechanism is rotatably connected to one end of the cross bar, and the other end of the cross bar is connected to the vertical bar. When the power device works, it drives the driving gear to rotate, and the driving gear drives the L-shaped bar through the two-link mechanism. Sliding back and forth, and the other end of the cross bar is also provided with a transmission gear, the transmission gear meshes with the rack, so the transmission gear moves back and forth on the rack, because the cam is fixed on the transmission gear, so when the transmission gear rotates, the cam also Rotate, because the cam is tangent to the small cylinder, therefore, the small cylinder will move along the vertical bar of the L-shaped bar, and in the other direction, the small cylinder will also move with the horizontal bar of the L-shaped bar, during this movement , the movement track of the small cylinder is a cam profile curve, and the cam profile curve can be drawn by setting a pen on the small cylinder for observation, study and research. This teaching aid is not only vivid, easy to use and carry, but also low in cost , so that the mechanical classroom is full of vividness and artistry.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.
图1是本发明实施例提供的凸轮轮廓曲线绘制教具的结构示意图；Fig. 1 is the schematic structural view of the cam profile curve drawing teaching aid provided by the embodiment of the present invention;
图2是本发明实施例提供的凸轮轮廓曲线绘制教具的结构示意图。Fig. 2 is a schematic structural diagram of the cam profile drawing teaching aid provided by the embodiment of the present invention.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
实施例Example
本发明实施例提供了一种凸轮轮廓曲线绘制教具，参见图1和2，该教具包括：An embodiment of the present invention provides a teaching aid for drawing a cam profile curve, see Figures 1 and 2, the teaching aid includes:
盒子1、动力装置2、主动齿轮3、L型杆4、二连杆机构5、可伸缩装置6、小圆柱7、齿条8、传动齿轮9以及凸轮10；Box 1, power unit 2, driving gear 3, L-shaped rod 4, two-link mechanism 5, telescopic device 6, small cylinder 7, rack 8, transmission gear 9 and cam 10;
盒子1包括第一面板，动力装置2包括动力齿轮2a，动力装置2、主动齿轮3和齿条8安装在第一面板上，且动力齿轮2a与主动齿轮3啮合，二连杆机构5的一端固定在主动齿轮3的转动轴上，L型杆4包括垂直连接的横杆41和竖杆42，二连杆机构5的另一端与横杆41的一端可转动连接，横杆41的另一端与竖杆42连接，且横杆41的另一端上设有传动齿轮9，传动齿轮9与齿条8啮合，凸轮10固定在传动齿轮9上，可伸缩装置6与竖杆42连接，小圆柱7设于可伸缩装置6上，小圆柱7与凸轮10相切，小圆柱7上设有笔头。Box 1 comprises a first panel, power unit 2 comprises power gear 2a, power unit 2, driving gear 3 and rack 8 are installed on the first panel, and power gear 2a meshes with driving gear 3, and one end of two linkage mechanism 5 Fixed on the rotating shaft of the driving gear 3, the L-shaped bar 4 includes a vertically connected cross bar 41 and a vertical bar 42. The other end of the two linkage mechanism 5 is rotatably connected to one end of the cross bar 41, and the other end of the cross bar 41 It is connected with the vertical bar 42, and the other end of the cross bar 41 is provided with a transmission gear 9, the transmission gear 9 meshes with the rack 8, the cam 10 is fixed on the transmission gear 9, the telescopic device 6 is connected with the vertical bar 42, and the small cylinder 7 is located on the retractable device 6, the small cylinder 7 is tangent to the cam 10, and the small cylinder 7 is provided with a nib.
在本实施例中，动力装置2包括发条，发条与动力齿轮2a连接。在其他实施例中，该动力装置2还可以由电动马达等设备组成。In this embodiment, the power device 2 includes a spring, and the spring is connected to the power gear 2a. In other embodiments, the power device 2 may also be composed of electric motors and other equipment.
进一步地，该教具还包括滑槽4a，盒子1还包括与第一面板平行设置的第二面板，第一面板和第二面板通过侧板连接，横杆41设置在滑槽4a中，滑槽4a固定在第二面板上。Further, the teaching aid also includes a chute 4a, the box 1 also includes a second panel arranged in parallel with the first panel, the first panel and the second panel are connected by a side plate, the crossbar 41 is arranged in the chute 4a, and the chute 4a is fixed on the second panel.
另外，在本实施例中，上述笔头还可以紧贴第二面板，以使笔头可以在第二面板上画图。In addition, in this embodiment, the above-mentioned pen tip can also be close to the second panel, so that the pen tip can draw pictures on the second panel.
当动力装置2打开时，带动主动齿轮3转动，主动齿轮3通过二连杆机构5带动L型杆4在滑槽4a中来回滑动，相应地，传动齿轮9在齿条8上往返运动，在传动齿轮9转动时，凸轮10也转动，由于凸轮10与小圆柱7相切，因此，小圆柱7会沿着L型杆4的竖杆42运动，而另一个方向上，小圆柱7还会随着L型杆4的横杆41运动，因此在此运动过程中，小圆柱7的运动轨迹是一个凸轮轮廓曲线。在小圆柱7上设置笔头可以将该凸轮轮廓曲线描绘在透明的第二面板上，以用于观察、学习和研究，例如计算凸轮轮廓曲线方程。When the power unit 2 is turned on, it drives the driving gear 3 to rotate, and the driving gear 3 drives the L-shaped bar 4 to slide back and forth in the chute 4a through the two-link mechanism 5. When transmission gear 9 rotates, cam 10 also rotates, because cam 10 is tangent to small cylinder 7, therefore, small cylinder 7 can move along the vertical bar 42 of L-shaped bar 4, and on the other direction, small cylinder 7 also can With the movement of the cross bar 41 of the L-shaped bar 4, the movement track of the small cylinder 7 is a cam profile curve during this movement. Setting the nib on the small cylinder 7 can describe the cam profile curve on the transparent second panel for observation, learning and research, such as calculating the cam profile curve equation.
在本实施例中，第一面板和第二面板为玻璃塑料面板。采用玻璃塑料制成教具的盒子可以减轻重量，方便携带和移动，成本低。In this embodiment, the first panel and the second panel are glass-plastic panels. The box of the teaching aid made of glass and plastic can reduce the weight, is convenient to carry and move, and has low cost.
参见图1和2，二连杆机构5包括第一横杆52和第二横杆51，第一横杆52和第二横杆51的一端可转动连接，第一横杆52的另一端与L型杆4可转动连接，第二横杆51的另一端固定在主动齿轮3的转动轴上。Referring to Figures 1 and 2, the two-bar linkage mechanism 5 includes a first crossbar 52 and a second crossbar 51, one end of the first crossbar 52 and the second crossbar 51 is rotatably connected, and the other end of the first crossbar 52 is connected to the first crossbar 52. The L-shaped bar 4 is rotatably connected, and the other end of the second cross bar 51 is fixed on the rotating shaft of the driving gear 3 .
在本实施例中，可伸缩装置6可以为套筒，套筒与竖杆42可滑动地连接。In this embodiment, the telescopic device 6 can be a sleeve, and the sleeve is slidably connected with the vertical rod 42 .
在其他实施例中，可伸缩装置6还可以为弹簧装置，弹簧装置与竖杆42连接。In other embodiments, the retractable device 6 can also be a spring device, and the spring device is connected with the vertical rod 42 .
进一步地，该教具还可以包括底座，盒子1设置在底座上。从而方便使用，保证平稳性，且不易磨损。Further, the teaching aid may also include a base, on which the box 1 is arranged. Thereby, it is convenient to use, ensures stability, and is not easy to wear.
进一步地，该教具还包括挂钩，挂钩设置在盒子1上。方便教具在不用时可以进行悬挂放置。Further, the teaching aid also includes a hook, which is arranged on the box 1 . Convenient teaching aids can be hung and placed when not in use.
在具体实现时，动力装置2和主动齿轮3通过连接件安装在第一面板上，连接件包括螺栓和螺母。In a specific implementation, the power device 2 and the driving gear 3 are installed on the first panel through a connecting piece, and the connecting piece includes a bolt and a nut.
在具体实现时，滑槽4a可以通过胶水粘连在第二面板上。In actual implementation, the sliding groove 4a can be adhered to the second panel by glue.
进一步地，在第二面板上还可以印制与凸轮轮廓曲线相关的知识点，方便观察该教具时进行学习，让机械课堂充满生动性和艺术性。Furthermore, the knowledge points related to the cam profile curve can also be printed on the second panel, which is convenient for learning while observing the teaching aid, so that the mechanical classroom is full of vividness and artistry.
进一步地，还可以在该教具中的齿轮上粘帖图片，以增强教具的美观程度。Further, pictures can also be pasted on the gears in the teaching aid to enhance the aesthetics of the teaching aid.
本发明实施例通过设置在第一面板上动力装置、主动齿轮和齿条，动力装置的动力齿轮与主动齿轮啮合，L型杆包括垂直连接的横杆和竖杆，二连杆机构的一端固定在主动齿轮的转动轴上，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，动力装置工作时带动主动齿轮转动，主动齿轮通过二连杆机构带动L型杆在来回滑动，而横杆的另一端还设有传动齿轮，传动齿轮与齿条啮合，因此传动齿轮在齿条上往返运动，由于凸轮固定在传动齿轮上，所以在传动齿轮转动时，凸轮也转动，由于凸轮与小圆柱相切，因此，小圆柱会沿着L型杆的竖杆运动，而另一个方向上，小圆柱还会随着L型杆的横杆运动，在此运动过程中，小圆柱的运动轨迹是一个凸轮轮廓曲线，在小圆柱上设置笔头可以将该凸轮轮廓曲线描绘出来，以用于观察、学习和研究，该教具不但生动形象，使用和携带方便，且成本低，让机械课堂充满生动性和艺术性。In the embodiment of the present invention, a power device, a driving gear and a rack are arranged on the first panel, and the power gear of the power device meshes with the driving gear. On the rotating shaft of the driving gear, the other end of the two-link mechanism is rotatably connected to one end of the cross bar, and the other end of the cross bar is connected to the vertical bar. Drive the L-shaped rod to slide back and forth, and the other end of the cross bar is also equipped with a transmission gear, which meshes with the rack, so the transmission gear moves back and forth on the rack. Since the cam is fixed on the transmission gear, it rotates when the transmission gear rotates. At this time, the cam also rotates. Since the cam is tangent to the small cylinder, the small cylinder will move along the vertical bar of the L-shaped bar, and in the other direction, the small cylinder will also move with the horizontal bar of the L-shaped bar. During this movement, the trajectory of the small cylinder is a cam profile curve, and the cam profile curve can be drawn by setting a pen on the small cylinder for observation, study and research. This teaching aid is not only vivid, but also easy to use and carry , and the cost is low, so that the mechanical classroom is full of vividness and artistry.
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163622.6A CN104008694B (en) | 2014-04-22 | 2014-04-22 | Cam profile curve draws teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163622.6A CN104008694B (en) | 2014-04-22 | 2014-04-22 | Cam profile curve draws teaching aid |
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| Publication Number | Publication Date |
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| CN104008694A true CN104008694A (en) | 2014-08-27 |
| CN104008694B CN104008694B (en) | 2016-03-09 |
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| CN201410163622.6A Expired - Fee Related CN104008694B (en) | 2014-04-22 | 2014-04-22 | Cam profile curve draws teaching aid |
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| CN104332094A (en) * | 2014-09-17 | 2015-02-04 | 杭州电子科技大学 | Apparatus for drawing cam motion chart |
| CN104332092A (en) * | 2014-09-17 | 2015-02-04 | 杭州电子科技大学 | Apparatus for drawing cam profile |
| CN104485050A (en) * | 2014-10-27 | 2015-04-01 | 杭州电子科技大学 | Demonstration mechanism for realizing cam contour drawing through reversal method through oscillating follower |
| CN104616580A (en) * | 2014-12-25 | 2015-05-13 | 北京理工大学 | Cam mechanism contour design and driven part motion characteristic mapping platform |
| CN111462541A (en) * | 2020-04-10 | 2020-07-28 | 刘颖 | English teaching is with contest equipment that has enjoyment |
| CN113487955A (en) * | 2021-06-02 | 2021-10-08 | 金超焕 | Multifunctional mechanical motion display teaching aid |
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| CN203910151U (en) * | 2014-04-22 | 2014-10-29 | 江汉大学 | Cam contour curve drawing teaching aid |
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| US1542582A (en) * | 1924-01-16 | 1925-06-16 | Paul A Raiche | Cam-forming machine |
| CN202748988U (en) * | 2012-09-14 | 2013-02-20 | 崔永杰 | Demonstration device for physics teaching |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104332094A (en) * | 2014-09-17 | 2015-02-04 | 杭州电子科技大学 | Apparatus for drawing cam motion chart |
| CN104332092A (en) * | 2014-09-17 | 2015-02-04 | 杭州电子科技大学 | Apparatus for drawing cam profile |
| CN104332094B (en) * | 2014-09-17 | 2017-02-15 | 杭州电子科技大学 | Apparatus for drawing cam motion chart |
| CN104332092B (en) * | 2014-09-17 | 2017-02-15 | 杭州电子科技大学 | Apparatus for drawing cam profile |
| CN104485050A (en) * | 2014-10-27 | 2015-04-01 | 杭州电子科技大学 | Demonstration mechanism for realizing cam contour drawing through reversal method through oscillating follower |
| CN104485050B (en) * | 2014-10-27 | 2017-05-10 | 杭州电子科技大学 | Demonstration mechanism for realizing cam contour drawing through reversal method through oscillating follower |
| CN104616580A (en) * | 2014-12-25 | 2015-05-13 | 北京理工大学 | Cam mechanism contour design and driven part motion characteristic mapping platform |
| CN104616580B (en) * | 2014-12-25 | 2017-09-19 | 北京理工大学 | Cam Mechanism Profile Design and Follower Kinematic Characteristics Surveying and Mapping Platform |
| CN111462541A (en) * | 2020-04-10 | 2020-07-28 | 刘颖 | English teaching is with contest equipment that has enjoyment |
| CN113487955A (en) * | 2021-06-02 | 2021-10-08 | 金超焕 | Multifunctional mechanical motion display teaching aid |
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