《无链条自行车的设计论文》毕业学术论文.doc
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青岛农业大学
毕 业 论 文(设计)
题 目: 无链条自行车的设计
姓 名: XXXXXXX
学 院: 机电工程学院
专 业: 机械设计制造及其自动化
班 级: XXXXXX
学 号: XXXXXXXXX
指导教师: XXXXX
XXX年X月XX日
目录
摘要 I
Abstract II
1 绪论 1
1.1无链条自行车的设计意义 1
1.2自行车设计的分类及其特点 1
1.3国内的研究状况及发展趋势 3
1.4研究的主要内容 4
2 方案的选择与论证 5
2.1设计要求 5
2.2曲柄摇杆驱动部分的分析与选择 5
2.3无链条自行车的结构设计 5
2.4设计特点 6
3 无链条自行车传动装置的设计 7
3.1 传动机构尺寸分析 7
3.2摩擦力分析 11
4.传动装置的校核分析 13
4.1 摇杆校核(db段) 13
4.2 连杆校核(bc段) 17
4.3 曲柄盘上的销钉的校核 18
5.附件机构选用与分析 19
5.1折叠机构的分析 19
5.2 前轮制动机构分析 20
5.2后轮制动系统分析 21
6.总结 22
参考文献 23
致 谢 24
无链条自行车的设计
摘要
本文介绍的设计。目前,鉴于此,设计了。根据要求,完成了总体方案的设计。采用。
Design of Bicycle Without Chain
Abstract
This paper introduces the design of bicycle without chain. At present, currently popular bicycle is chain transmission bike. Through using pedal bike turning to lead the rear wheels. Although even transmission bicycle is one of the most simple, high-speed operation optimization of products, but inevitable chain bike still has many faults, for example, chain in the form of bicycle in high speed running time easy to cause the chain falls off phenomenon, and recommends the instantaneous velocity ratio is change,and it job with noise, and need lubrication and a tight measures. In view of this, design an bike without chain. According to can play the fitness and more simple installation requirements, completed the overall scheme design. Using the crank rocker organization instead of the original chain transmission mechanism, and the two sets of crank rocker organization solved successfully turn appeared in the process of dead spots. The design of the crank rocker bicycle convenient installation, safe and reliable, low cost, transmission ratio accurate, etc.
Keywords: bicycle;no chain;crank rocker organization
1 绪论
1.1无链条自行车的设计意义
1.2自行车设计的分类及其特点
。
链传动自行车是目前广为流行的一种自行车,它结构简单,成本低廉,安全可靠。采用链传动形式,脚蹬中轴处安装大链盘,后轴处安装飞
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