机械科学与技术2012，Vol.31Issue(9)：1395-1400,6.
移动基圆变齿厚直齿轮及其齿面方程与接触分析
Base Circle Moved Beveloid Gear and Its Tooth Surface Equations and Contact Analysis
摘要
Abstract
Current beveloid gears＇ tooth thickness variation is achieved by changing modification coefficient, so the intersecting lines between the tooth profile and any arbitrary cross section perpendicular to the gear＇s axis are differ- ent segments of the same involute, which leads to the gear producing a certain conical degree along the gear＇s axial direction. A new base circle moved heveloid gear （BCMBG） is presented in this paper, which is realized through moving the base circle. BCMBG has the same tooth depth in the tooth direction and the intersecting lines between the tooth profile and any arbitrary cross section perpendicular to the gear＇s axis are the same segment of an involute, eliminating the possible interference in the clearance adjusting process of conventional beveloid gears. Firstly, tooth surface equations of the new beveloid gear are derived, in which parameter θ determines tooth thickness＇s variation quantity. In addition, the discrete data is obtained by using Matlab and then imported into Pro/E to establish the beveloid gear＇s accurate geometric model, according to which the prototype of the proposed beveloid gear is made to verify the tooth surface equations. Finally, the contact model of the heveloid gear＇s tooth surface at the transmission pair is constructed, and the transient contact points and contact lines are calculated with Matlab.关键词
变齿厚齿轮/移动基圆/齿面方程/接触分析Key words
beveloid gear/moved base circle/tooth surface equations/contact analysis分类
机械制造引用本文复制引用
陈小安,张志强,秦伟,陈宏,吕俊峰..移动基圆变齿厚直齿轮及其齿面方程与接触分析[J].机械科学与技术,2012,31(9):1395-1400,6.基金项目
基金项目：国家自然科学基金项目（51075407）和重庆市自然科学重点基金项目（CSTC,2009BA3020）资助 （）
