摘要
提出一种接触印痕位置参数分析法,用于确定弧齿锥齿轮安装误差的可变动范围。根据设计要求的啮合性能,采用局部综合法,设计弧齿锥齿轮加工参数,得到弧齿锥齿轮副齿面。在齿面参考点处的压入深度为0.006 35 mm的条件下,计算小轮驱动力矩。在此力矩作用下,进行安装误差状态下的轮齿加载接触分析(Loaded tooth contact analysis,LTCA),获得描述承载齿面接触印痕的位置参数。以接触印痕边界点到齿面边界的距离为设计目标,分别以不同类型的单因素安装误差为设计变量,采用优化设计方法确定接触印痕在齿面有效边界内变动时,对应的安装误差的变动范围。以某航空发动机附件传动系统中的弧齿锥齿轮为对象,依据上述方法,确定出不同类型安装误差的可变动范围,验证上述方法的有效性。所提出的方法为合理确定弧齿锥齿轮副安装误差的变动范围提供一种参考。
A positional parametric analysis of contact pattern is put forward,which can be used for determining the variation range of installation errors of spiral bevel gears.For forming the tooth surfaces of spiral bevel gears,manufacture parameters are designed based on local synthesis to meet design specifications.The pinion drive torque is calculated with indentation depth 0.006 35 mm at the mean contact point on single mesh tooth surface.Loaded tooth contact analysis（LTCA） is performed under this torque with installation errors,and the positional parameters of contact pattern are obtained.Taking the distance between the contact pattern and predetermined tooth surface boundary as design objectives and different types of single factor installation error as design variables,optimization is applied to find the range of installation errors when the contact pattern traveled within the tooth surface boundary.Taking a pair of spiral bevel gear in accessory drive system on aero engine as an example,the variation range of different types of installation errors is ascertained,which validates the effectiveness of the proposed method.The proposed method provides a reference on determining the variation range of installation errors for spiral bevle gears.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2012年第3期34-40,共7页
Journal of Mechanical Engineering
基金
国家'十一五'航空推进技术验证计划资助项目(APTD-1001B)
关键词
弧齿锥齿轮
局部综合
加载接触分析
安装误差
接触印痕
Spiral bevel gears Local synthesis Loaded tooth contact analysis Installation errors Contact pattern
