齿轮渗碳淬火变形与齿面磨削量的关系研究  

Research on Relation Between Distortion of Carburizing and Quenching Gears and Grinding Amount of Gear Flanks

作　　者：赵少甫 许鸿翔 陈生超 王红伟 张衡 戎泽玉 汪军 曹新民 Zhao Shaofu;Xu Hongxiang;Chen Shengchao;Wang Hongwei;Zhang Heng;Rong Zeyu;Wang Jun;Cao Xinmin(ZRIME Gearing Technology Co.,Ltd.,Zhengzhou 450001,China;Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China)

机构地区：[1]郑机所(郑州)传动科技有限公司,河南郑州450001 [2]郑州机械研究所有限公司,河南郑州450001

出　　处：《机械传动》2023年第12期118-122,共5页Journal of Mechanical Transmission

摘　　要：齿轮渗碳淬火变形指标有很多,但最终都将体现在齿面实际磨削量上。通过理论分析并结合长期生产实践发现,齿顶圆胀缩对磨削量影响最大,螺旋角变化和轮缘周向翘曲影响次之,其他因素影响相对较小。给出了依据齿轮直径胀缩量和其他参数计算齿面最大、最小磨削量的经验公式。在设计、工艺编制及热后质检时利用这些公式,可更加合理地确定图纸有效硬化层深度(Case-Hardened Depth,CHD)、滚齿时齿面预留磨削量和渗碳淬火时的目标CHD;渗碳淬火后还可以按照经验公式提前计算预估最大磨削量、最小磨削量和磨后齿面实际CHD,为后续生产提供指导。There are many kinds of distortion of carburizing and quenching gears,but they will be reflect-ed in the grinding amount of gear flanks.Through theoretical analysis and long-term production practice,it is found that the change of tip diameter has the greatest influence on the grinding amount,the change of the helix angle and the circumferential warpage of gear rims takes the second place,and other factors have relatively little influence.The empirical formulas for calculating the maximum and minimum grinding amount of the tooth flank are given,according to the change of the tip diameter and other parameters.These formulas can be used to deter-mine the case-hardened depth(CHD)in drawings,the reserved grinding amount of gear flanks during gear hob-bing,and the target CHD during carburizing and quenching.After carburizing and quenching,the maximum and minimum grinding amount and the actual CHD can be calculated and predicted according to these formulas,so as to provide guidance for subsequent production.

关 键 词：渗碳淬火 变形 齿轮 磨削量 有效硬化层深度 

分 类 号：TG162.73[金属学及工艺—热处理]