摘要
风电齿轮体积庞大､结构较复杂且在感应加热时存在端部效应,导致难以实现齿廓及齿宽的均匀加热,影响最终强化质量.本文以平均温度､最大温差和相对温度浮动率作为加热效果判定指标,研究了风电齿轮在扫描感应加热过程中沿齿廓及沿齿宽方向的温度场,并对齿轮相变和淬硬情况进行分析.研究发现,一定范围内的温度均匀性在齿宽方向由齿顶至齿底逐渐提升,其原因在于齿形结构厚度的剧烈变化.在稳态位置经感应淬火强化的齿轮,齿廓方向淬硬层深度整体上几乎与宏观相变层深度保持一致,过渡区域相对较窄.阐明了齿轮扫描感应加热的效果以及强化结果,为高性能钢铁材料在风电领域广泛应用提供了研究基础.
Due to the huge volume,complex structure and end effect of wind power gear,it is difficult to realize the uniform heating of tooth profile and tooth width,which affects the final strengthening quality.In this paper,the average temperature,the maximum temperature difference and the relative temperature fluctuation rate are taken as the evaluation indexes of the heating effect.The temperature fields along the tooth profile and the tooth width direction of wind power gear in the scanning induction heating process are studied,and the phase transformation and hardening of the gear are analyzed.It is found that the temperature uniformity increases gradually in the direction of tooth width from top to bottom within a certain range,which is due to the drastic change of tooth structure thickness.To gears strengthened by induction hardening in steady-state positions,the depth of hardened layer in the direction of tooth profile is almost the same as the depth of macroscopic phase change layer,and the transition region is relatively narrow.The heating effect and strengthening result of gear scanning induction heating are expounded,which provides the research foundation for the wide application of high-performance steel materials in the field of wind power.
作者
赵玉倩
王珊
文怀宇
韩毅
ZHAO Yu-qian;WANG Shan;WEN Huai-yu;HAN Yi(School of Control Engineering,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China;School of Mechanical Engineering,Dalian University,Dalian 116622,China;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,China)
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2023年第6期808-815,848,共9页
Journal of Northeastern University(Natural Science)
基金
河北省自然科学基金高端钢铁冶金联合基金项目(E2020501029)
中央高校基本科研业务费专项资金资助项目(2022GFZD013).
关键词
齿轮
风电
感应加热
温度均匀性
淬硬层
gear
wind power
induction heating
temperature uniformity
hardened layer
