摘要
基于对稻麦秸秆空心结构的仿生,提出了主轴的仿生空心结构设计。计算结果表明,当空心轴的壁厚约为其外径的2/7时,其主轴的抗扭、抗弯性能最好,而且使用的材料最少;对于阶梯轴或圆锥轴,可按其当量光轴直径来设计空心轴壁厚。另外,计算分析了滚动轴承的刚度,认为一定预紧力与定压预紧方式有益于提高主轴刚度。
Based on the structural results of the rods of rice and wheat plants, the bionic design of spindle structures was presented. The analysis results suggest that the tlexural strength and torsional strength are best, as the thickness of the hollow spindle is around 2/7 of the outer diameter of the spindles. The structures of multi-stepped cross sectional spindles and conic cross sectional spindies can be bionic designed according to their equivalent outer diameter of the spindles. The calculated results of rolling bearing stiffness indicate that larger preloading and constant pressure preloading for the rolling bearings of the spindle can improve the stiffness of main spindle.
出处
《机床与液压》
北大核心
2007年第5期18-19,共2页
Machine Tool & Hydraulics
基金
浙江省自然科学基金项目(Y104427)
浙江省科技攻关项目(2006C34001)
关键词
主轴
空心结构
最佳壁厚
仿生设计
Main spindle
Hollow structure
Optimal thickness
Bionic design
