理化检验-物理分册2025，Vol.61Issue(6)：41-44,4.DOI:10.11973/lhjy-wl240344
某离心风机用电机轴断裂原因
Reason for the fracture of the motor shaft of a certain centrifugal fan
袁晓冬 1李志浩 1陈洁明 2郭海霞 1刘攀 2张欣耀3
作者信息
- 1. 中国船舶集团有限公司 第七二五研究所,洛阳 471023
- 2. 中国船舶集团有限公司 第七二五研究所,洛阳 471023||海洋腐蚀与防护全国重点实验室,洛阳 471023
- 3. 中国船舶集团有限公司 第七二五研究所,洛阳 471023||河南省船舶及海工装备结构材料技术与应用重点实验室,洛阳 471023||海洋腐蚀与防护全国重点实验室,洛阳 471023
- 折叠
摘要
Abstract
A small motor shaft of centrifugal fan broke after being connected online for 1 hour.The reasons for the fracture of the motor shaft were analyzed using macroscopic observation,scanning electron microscopy analysis,chemical composition analysis,mechanical property testing,metallographic examination,measurement of tool groove size and surface roughness.The results show that the fracture mode of the motor shaft was high cycle fatigue fracture,and the main reasons for the fatigue fracture of the motor shaft were off-axis rotation,rough machining of the tool groove,and low strength of the hot-rolled 45 steel.关键词
电机轴/45钢/高周疲劳断裂/偏轴旋转/粗糙度/力学性能Key words
motor shaft/45 steel/high cycle fatigue fracture/off-axis rotation/roughness/mechanical property分类
通用工业技术引用本文复制引用
袁晓冬,李志浩,陈洁明,郭海霞,刘攀,张欣耀..某离心风机用电机轴断裂原因[J].理化检验-物理分册,2025,61(6):41-44,4.
