Precise modeling of arc tooth face-gear with transition curve  

作　　者：Cui Yanmei Fang Zongde Su Jinzhan Feng Xianzhang Peng Xianlong 

机构地区：[1]School of Mechanical Engineering,Northwestern Polytechnical University [2]School of Construction Machinery,Chang’an University [3]School of Mechatronics Engineering,Zhengzhou Institute of Aeronautical Industry Management

出　　处：《Chinese Journal of Aeronautics》2013年第5期1346-1351,共6页中国航空学报（英文版）

基　　金：co-supported by the National Natural Science Foundation of China (No.51175423);the Aeronautical Science Foundation of China (No.2011ZB55002);Science & Technology Innovation Talents in Universities of Henan Province,‘‘HASTIT’’(No.2012HASTIT023);Assistance Scheme of Young Backbone Teachers of Henan Province Colleges and Universities (No.2010GGJS-147)

摘　　要：A fabrication method is adopted for which an imaginary gear simultaneously realizes conjugated meshing with an arc tooth cylindrical gear and an arc tooth face-gear. The cutter fillet and tooth crest edge form the tooth root fillet of the gear, and the linear tooth surface equation of the imaginary gear and the position vector of the curvature center of the cutter fillet arc constructed with certain cutter inclination to deduce a working arc tooth surface equation. The tooth root fillet equation of the arc tooth face-gear is derived from the meshing geometry and kinematics. A numer- ically controlled machining model of the arc tooth face-gear is established through the transforma- tion of adjustment parameters from the cutter-tilt milling machine to a common multi-axis NC machine. Motion parameters of each movement axis of the NC machine are acquired. A processing example is presented to verify the precision of the fabrication method in processing the arc tooth face-gear. The method provides a theoretical and tentative basis for the analysis of tooth surface contact stress, tooth root bending stress and dynamics. A hobbing test is conducted to demonstrate the good meshing condition of the arc tooth face-gear pair.A fabrication method is adopted for which an imaginary gear simultaneously realizes conjugated meshing with an arc tooth cylindrical gear and an arc tooth face-gear. The cutter fillet and tooth crest edge form the tooth root fillet of the gear, and the linear tooth surface equation of the imaginary gear and the position vector of the curvature center of the cutter fillet arc constructed with certain cutter inclination to deduce a working arc tooth surface equation. The tooth root fillet equation of the arc tooth face-gear is derived from the meshing geometry and kinematics. A numer- ically controlled machining model of the arc tooth face-gear is established through the transforma- tion of adjustment parameters from the cutter-tilt milling machine to a common multi-axis NC machine. Motion parameters of each movement axis of the NC machine are acquired. A processing example is presented to verify the precision of the fabrication method in processing the arc tooth face-gear. The method provides a theoretical and tentative basis for the analysis of tooth surface contact stress, tooth root bending stress and dynamics. A hobbing test is conducted to demonstrate the good meshing condition of the arc tooth face-gear pair.

关 键 词：Face-gear GEOMETRY KINEMATICS Mechanical drive NC machine Transmissions 

分 类 号：TH132.41[机械工程—机械制造及自动化] TH132.44