滚珠丝杠副疲劳寿命试验台设计
本论文在分析滚珠丝杠副寿命的测试需求基础上，对滚珠丝杠副寿命进行了介绍；结合滚珠丝杠副寿命的计算方法，分析出测量丝杠寿命需要收集的性能数据；对于试验台的结构设计，先提出了总体结构方案，再进行总体结构设计，对试验台中比较重要的结构设计进行了详细的介绍，并说明了测量结构如何进行测量试验；最后，论文对关键零部件的优化、零件的校核及其关键零件的ansys有限元分析进行了介绍。6076
关键词 滚珠丝杠副 疲劳寿命 试验台设计 结构设计
毕业设计说明书（论文）外文摘要
Title The Design of Test-bed For Ball Screw Fatigue Life
Abstract
This paper bases on the major projects of national science and technology “The research and development of general character technology of scroll function component of high-end numerical control machine”,Accoding to the test requirement for the ball screw fatigue life and the development of technology of ball screws testing at home and abroad,design a test-bed for the measurement of the ball screw life.
Based on the test requirement for the ball screw life,this paper introduces the ball screw life; Combined with the computation method of the measurement for the ball screw life ,the paper analyses that which performance data needed to be collected for the measuring of the screw life;For the structure design of the test-bed ,first to put forward the overall structure scheme, then the overall structure design;The paper introduces the important structure design on the test-bed in detail and explains how the measuring structure to test;Finally,the paper introduces the optimization of key parts,the check of parts and the the ANSYS finite element analysis of key parts.
Keywords ball screw fatigue life design of test-bed structure design
目 次
1 绪论 1
1.1 滚珠丝杠副介绍 1
1.2 国内外滚珠丝杠副的发展及研究 3
1.3 课题研究背景及意义 7
1.4 论文主要研究内容 7
1.5 本章小结 8
2 滚珠丝杠副寿命 9
2.1 概念 9
2.2 丝杠寿命计算方式 9
2.3 试验台测试内容 14
2.4 本章小结 15
3 试验台总体设计分析 16
3.1 试验台测试对象 16
3.2 总体结构设计分析 16
3.3 试验台测量结构设计分析 17
3.4 本章小结 19
4 试验台结构设计 20
4.1 丝杠驱动电机部分设计 21
4.2 丝杠前支架及尾架设计 24
4.3 加载力结构 26
4.4 丝杠螺母扭矩测量结构 31
4.5 双螺母预紧力测量结构 32
4.6 对于关键零件的校核 33
4.7 本章小结 37
5 关键零部件优化设计 38
5.1 对于丝杠螺母底板的优化 38
5.2 对关键零件的ansys分析 39
5.3 本章小结 46