“轮系传动比计算”的教学与反思
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摘要
"轮系传动比计算"作为机械或近机械类专业技术基础课《机械设计基础》的一个重要章节,其教学效果将直接影响学生后续课程设计的质量。介绍了采用实物模型展示法、多媒体播放动画演示法及设问启发式导入法引入章节内容教学的技巧;讲述了教学思路;给出了定轴轮系传动比计算公式的推导过程;最后以旋转车轮上爬行的蚂蚁为例,通过类比法来讲解周转轮系传动比的计算。教学实践表明,在取得预期教学效果的同时,学生学习轻松快乐,兴趣浓厚。
"Transmission ratio calculation for gear trains"is an important section in the course of Fundamentals of Mechanical Design,which is a type of technical basic work of mechanical and in mechanical specialties,is the essential knowledge for the students doing the curriculum design and also engaging in mechanical product development work in the future,so its teaching effects will directly affects the quality of the following curriculum design. Therefore,the successful teaching experiences we have gained over the past years will be shared in this paper,the teaching skills using physical models,playing animation by multimedia and question heuristic introducing into the chapter were firstly detailedly described,the ideas of teaching were secondly finely narrated,the derivation on the transmission ratio calculation for the fixed axis gear train were thirdly carefully given,and lastly the transmission ratio calculation for the epicyclic gear train was explained by the crawling ants on a rotating wheel as an example. The teaching practices have proved that not only the desired teaching qualities were achieved,but also the students can easily and happily study with a keen interest in learning.
"Transmission ratio calculation for gear trains"is an important section in the course of Fundamentals of Mechanical Design,which is a type of technical basic work of mechanical and in mechanical specialties,is the essential knowledge for the students doing the curriculum design and also engaging in mechanical product development work in the future,so its teaching effects will directly affects the quality of the following curriculum design. Therefore,the successful teaching experiences we have gained over the past years will be shared in this paper,the teaching skills using physical models,playing animation by multimedia and question heuristic introducing into the chapter were firstly detailedly described,the ideas of teaching were secondly finely narrated,the derivation on the transmission ratio calculation for the fixed axis gear train were thirdly carefully given,and lastly the transmission ratio calculation for the epicyclic gear train was explained by the crawling ants on a rotating wheel as an example. The teaching practices have proved that not only the desired teaching qualities were achieved,but also the students can easily and happily study with a keen interest in learning.
引文
[1]马军.《机械设计基础》实训教学中创新能力的培养[J].淮南职业技术学院学报,2015,15(66):91-92.
[2]訾克明,李贵三,芦新春,等.完全学分制下《机械设计基础》教材改革与实践[J].淮海工学院学报,2015,13(10):135-137.
[3]符炜.复数矢量法在周转轮系传动比计算中的应用[J].机械科学与技术,200019(2):261-262.
[4]杨实如,段钦华.封闭式周转轮系的传动比及其传动比法[J].煤矿机械,2003(8):33-35.
[5]卢存光.复杂周转轮系传动比计算方法研究[J].煤矿机械,2004(6):3-5.
[6]赵玉剑,乔雪涛.一种基于啮合点的复杂轮系传动比计算方法[J].机械传动,2011,35(8):38-39.
[7]冯仲,陈甲虎,张华平.复杂行星轮系传动比计算的简化法[J].机械传动,2012,36(3):95-96.
[8]李明圣,李勇.双重周转轮系传动比杠杆法研究[J].机械传动,2013,37(10):46-48.
[9]杨可桢,程光蕴,李仲生,等.机械设计基础[M].6版.北京:高等教育出版社,2013:77-79.
[2]訾克明,李贵三,芦新春,等.完全学分制下《机械设计基础》教材改革与实践[J].淮海工学院学报,2015,13(10):135-137.
[3]符炜.复数矢量法在周转轮系传动比计算中的应用[J].机械科学与技术,200019(2):261-262.
[4]杨实如,段钦华.封闭式周转轮系的传动比及其传动比法[J].煤矿机械,2003(8):33-35.
[5]卢存光.复杂周转轮系传动比计算方法研究[J].煤矿机械,2004(6):3-5.
[6]赵玉剑,乔雪涛.一种基于啮合点的复杂轮系传动比计算方法[J].机械传动,2011,35(8):38-39.
[7]冯仲,陈甲虎,张华平.复杂行星轮系传动比计算的简化法[J].机械传动,2012,36(3):95-96.
[8]李明圣,李勇.双重周转轮系传动比杠杆法研究[J].机械传动,2013,37(10):46-48.
[9]杨可桢,程光蕴,李仲生,等.机械设计基础[M].6版.北京:高等教育出版社,2013:77-79.