螺旋齿面齿轮两自由度车齿原理研究  

Research on Skiving Principle of Helical Face Gear with Two Degrees of Freedom

作　　者：景琦 沈云波[1] 朱育权[1] 王宽裕 Jing Qi;Shen Yunbo;Zhu Yuquan;Wang Kuanyu(School of Mechatronic Engineering,Xi′an Technological University,Xi′an 710000,China;不详)

机构地区：[1]西安工业大学机电工程学院,西安市710000

出　　处：《工具技术》2022年第11期76-81,共6页Tool Engineering

基　　金：陕西省重点研发计划(2022GY-214);陕西省教育厅重点实验室基金(19JS036)。

摘　　要：针对现有齿轮加工方法不能加工较大螺旋角的螺旋齿面齿轮问题,提出了一种螺旋齿面齿轮的车齿加工方法。根据空间交错轴啮合原理,建立螺旋齿面齿轮两自由度车齿的理论加工模型,研究车齿刀、假想螺旋产形齿轮和螺旋齿面齿轮的安装布置关系,分析面齿轮车齿中的自由度,建立车齿中刀具和面齿轮的展成运动模型。以直齿渐开线作为刀具的切削刃形,运用微分几何与啮合原理,推导车齿加工的啮合方程、螺旋齿面齿轮的工作齿面方程以及过渡齿面方程,并建立了螺旋齿面齿轮的车齿齿面与理论齿面的误差分析模型。仿真表明:凸齿面离散点误差为-0.01~-0.02mm,凹齿面离散点误差接近0,从而验证螺旋齿面齿轮两自由度车齿加工原理的可行性。In terms of the problem that the existing gear processing methods can not process the face gear with large spiral angle, a skiving processing method for the helical face gear is developed and studied.According to the theory of space staggered shaft meshing, a theoretical machining model for the helical face gear with two degrees of freedom is established.The arrangement of skiving cutter, imaginary helical profile gear and the helical face gear is studied, while the degrees of freedom in the process of face gear skiving are analyzed.The developing motion model of skiving cutter and the helical face gear in the skiving process is established.Application of straight involute as cutting edge shape, the meshing equations, working tooth flank equations and fillet tooth flank equations of the face gear are deduced.The error analysis model about the skiving tooth flank and the theoretical tooth flank of the helical face gear is established.The simulation results show that the error of discrete point in convex tooth flank is-0.01~-0.02 mm, and the error of concave tooth flank is closed to 0,which illustrates the feasibility of two-degree-of-freedom skiving of the helical face gear.

关 键 词：螺旋齿面齿轮 车齿 齿面误差 齿形误差 

分 类 号：TG61[金属学及工艺—金属切削加工及机床] TH132.41[机械工程—机械制造及自动化]