钢球锥轮式无级变速器的设计(含CAXA零件图和装配图)
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钢球锥轮式无级变速器的设计(含CAXA零件图和装配图)(任务书,开题报告,论文说明书10000字,CAXA图纸11张)
摘要
无级变速器可以适应不断变化的工艺要求,机械化和工艺开发的驱动器提高了设备的机械性能和自动化性能。本文描述的机械摩擦无级变速器,设计的计算方法,用的材料和密封润滑等的知识的基本结构,以及作为该无级变速器设计的原理和理论基础。
本设计是通过改变球半径来实现球锥轮无级变速器的输出轴速度的连续变化来作用中间球锥形轮驱动部件工作。本文包括无级变速器的基础理论原理、设计计算的方法、材料和润滑等的知识的基本结构。分析主、从动轮,球和轴在传输过程中的传力之间的关系;球、锥轮设计公式的详细推导;和选择用于计算具体的设计参数;绘制的零件图、装配图和主传动组件;计算出的CVT钢球锥轮装配图和主传动组件,此传输技术的结构和要求的其它方面表现更清晰。
该无级变速器具备良好的结构及性能上的优势,具有很强的实用价值,可作为大规模生产的无级变速器。其主要特点是:1、调速范围宽; 2、良好的恒功率特性; 3、可以上升、减速、正、反转。4、光滑、耐冲击性强;5、输出功率较大;6、寿命长;7、速简单、可靠;8、维护方便。
关键词:无级变速、钢球、锥轮式
Abstract
Machinery to adapt to the changing process of requirements, process development and general driving stepless variable speed drive system to improve the mechanical performance of mechanization and automation equipment. Mechanical friction is introduced, the design and calculation method of infinitely variable speed, materials and lubrication of the basic knowledge structure, and stepless variable speed design theory.
Changing the design by changing the radius of the ball to reach the goal of the output axis of the cone wheel stepless speed as intermediate conical wheel drive components, work. Analysis of the relationship between driving and driven wheels, power transmission between the ball and external engineering in the process of transmission, the actual stepless ball cone pulley is derived in detail the design formula of design and selection of parameters are used to calculate the specific design, draw the part drawing calculation stepless ball cone wheel assembly and the main transmission components, the performance of other aspects of transmission technology architecture and requirements clearly.
The structure and properties of infinitely variable speed has a good advantage, have very strong practical value, can be used as a large-scale production of stepless variable speed. Its main features are: wide speed range; 2 good constant power characteristics; 3 can rise, slow, positive and reverse. 4.. is smooth, high impact resistance; Big five power output; 6, long life; 7 - speed is simple, reliable, easy to maintain.
Key words: CVT、Ball Cone Wheel、Friction
毕业设计的内容和要求
内容:钢球机械无级变速器结构的设计;选择钢球外锥式机械无级变速器,对其进行机构设计;对关键部件进行强度校核和寿命校核。
要求:输入功率P=11kw,输入转速n=1500rpm,调速范围R=5;变速器尺寸要合理、轻便;结构设计时应使制造成本尽可能低;安装拆卸要方便;外观要匀称,美观;调速要灵活,调速过程不能出现卡死现象,能实现动态无级调速;关键部件满足强度和寿命要求;绘制零件图与装配图。
目录
摘要 1
ABSTRACT 2
1引言 4
1.1机械无级变速的发展情况 4
1.2机械无级变速的特点和应用 4
1.3机械无级变速的研究现状 5
1.4毕业设计的内容和要求 6
2总体方案的选择 7
2.1钢球外锥(KOPP-B型)无级变速器 7
2.2钢球长锥式(RC)无级变速 8
2.3方案的比较与选择 8
3主要零件的计算和设计 9
3.1钢球与主、从动锥轮的计算与设计 9
3.2加压盘的计算与设计 12
3.3调速齿轮上变速曲线槽的计算与设计 13
3.4输入、输出轴的计算与设计 14
3.5输入、输出轴上端盖的计算与设计 15
3.6输入、输出轴上轴承的计算与设计 15
3.7调速机构的计算与设计 15
3.8无级变速器的装配 16
4主要零件的校核 18
4.1轴的校核 18
4.2轴承的校核 20
5结束语 22
参考文献 23
致谢 24
附录 25