齿轮典型加工误差的时域和频域特征分析

Time Domain and Frequency Domain Analysis of Typical Machining Errors of Gears

齿轮作为汽车传动系统的核心零部件,其加工精度对整车NVH性能至关重要。在齿轮加工过程中,不可避免的存在齿距误差、齿形误差以及磕碰等缺陷。文章以驱动桥主减速器为例,从振动特征这一维度详细分析了几种典型加工误差对系统的振动噪声的影响,同时还描述了各类型加工误差在时域和频域的表现特征。从而为汽车齿轮的加工误差控制提供了明确的理论依据以及工作思路。

As the main part of automobile transmission system,the machining accuracy of gear is very important to the NVH performance of the whole vehicle.In the manufacture process of gear,there are inevitable defects such as pitch error,tooth shape error and bump.Taking the main reducer of the drive axle as an example,this paper analyzes in detail the influence of several typical errors on the vibration and noise of the system,and also describes the performance characteristics of various machining errors in the time and frequency domain.Thus,it provides a clear theoretical basis and working ideas for the error control of automobile gears.