摘要
提出以许用挠曲率为刚度条件,以校核刚度为主要计算方法,对受弯扭作用的螺旋输送机螺旋轴进行轴径和跨度的系列化设计;研究了根据挠曲率进行疲劳寿命预测,列出尺寸表供设计时选用;研究了螺旋轴折断的原因。研究结果适于工程应用。
With allowing deflection curvature as stiff-ness condition and adjusting firmness as main calculatingmethod, the paper discusses seriation and fatigue life'sforecast of screw axis's shaft diameter and span in screwconveyer with bending. Dimension table is given to findout the reasons of screw axis's shaft breakage when it isdesigned. Under different conditions the major task is tomodify datum to match with the fact based on the valuseof symmetrical load collection. Compared with themethod of adjusting screw axis with intensity, this onepredigests calculation and fits to engineering applications.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2003年第12期1049-1052,共4页
China Mechanical Engineering
基金
国家自然科学基金资助项目(59975027)
安徽省国际合作项目(01088015)
关键词
螺旋输送机
螺旋轴
许用挠曲率
疲劳断裂
寿命预测
screw conveyer
screw axis
allowing deflection curvature
fatigue rupture
life
