张波, 李家琦, 张宁,等.特大型直齿锥齿轮直廓变切深加工理论及验证[J].河南理工大学学报（自然科学版）,2020,39(6):88-93.

ZHANG B, LI J Q, ZHANG N, et al.Theory and verification of straight profile variable-depth cutting forextra large straight bevel gear[J].Journal of Henan Polytechnic University(Natural Science) ,2020,39(6):88-93.

特大型直齿锥齿轮直廓变切深加工理论及验证

张波1, 李家琦1, 张宁1, 张亚双2

1.河南科技大学 机电工程学院，河南 洛阳 471003;2.中国航发沈阳黎明航空发动机有限责任公司，辽宁 沈阳 110043

摘要:为了实现特大型直齿锥齿轮的高质量、高效率加工，针对特大型直齿锥齿轮的大轮提出直廓、变切深加工理论，即大轮的齿面以直廓齿面代替传统的渐开线齿面。基于直齿锥齿轮单刀双面法切齿原理，进行直廓指形铳刀的设计，通过切深变化及齿形分析，得到切深沿齿长方向变化的函数关系式，推导直廓变切深加工时大轮的齿面方程。在此基础上，推导与其完全共辄啮合的小轮齿面方程，并对小轮齿面进行齿面拓扑修形。以一对特大型直齿锥齿轮为例，进行加工和修形啮合分析，最后通过加工对滚试验，验证直廓变切深加工理论的正确性及其可行性。

关键词:特大型直齿锥齿轮;变切深加工;齿面拓扑修形;啮合分析

doi:10.16186/j.cnki.1673-9787.2020.6.12

基金项目:国家自然科学基金资助项目（51405135 ）；河南省自然科学基金资助项目（182300410190）

收稿日期:2020/02/25

修回日期:2020/03/29

出版日期:2020/11/15

Theory and verification of straight profile variable-depth cutting forextra large straight bevel gear

ZHANG Bo1, LI Jiaqi1, ZHANG Ning1, ZHANG Yashuang2

1.School of Mechanical and Electrical Engineering， Henan University of Science and Technology， Luoyang  471003 ， Henan， China;2.AECC Shenyang Liming Aero Engine Co. ，Ltd. ， Shenyang  110043 ， Liaoning， China

Abstract:In order to realize the high quality and high efficiency machining of extra large straight bevel gear， the theory of variable-depth machining with straight profile was put forward for the large straight bevel gear. That was to say， the traditional involute tooth surface of gear was replaced by the straight tooth surface. Based on the principle of single-cutter and double -face cutting of straight bevel gear， the design of straight-profile finger-shaped milling cutter was carried out. By analyzing the change of cutting depth and tooth profile， the function relation of cutting depth along the direction of tooth length was obtained， and the tooth surface equation of large gear in the process of straightprofile variable depth cutting was deduced. On this basis， the tooth surface equation of the fully conjugate meshing pinion was deduced， and the tooth surface of the pinion was topologically modified. Taking a pair of extra large straight bevel gears as an example， the meshing analysis of machining and modification was carried out. Finally， the validity and feasibility of the theory of straight profile variabledepth cutting were proved by rolling experiments.

Key words:extra large straight bevel gear;variable-depth cutting;tooth flank topology modification;meshing analysis

特大型直齿锥齿轮直廓变切深加工理论及验证_张波.pdf