不同载荷下螺旋锥齿轮HFT和SGG加工参数与传动性能关系研究
发布时间：2018-12-10 20:47
【摘要】：在局部综合法计算结果的基础上根据齿面接触分析(Tooth Contact Analysis, TCA)结果进行修正,是现行计算螺旋锥齿轮加工参数(含刀具几何参数、机床调整参数)的主要方法,但未能充分考虑载荷对传动性能(含齿面最大接触应力、齿根最大弯曲应力、传动误差幅值、重合度等)的影响,使得齿轮副的寿命、噪音未达最优水平。论文针对这一不足,提出一种计算螺旋锥齿轮加工参数的改进方法：由局部综合法计算出螺旋锥齿轮加工参数的初始值,根据TCA结果修正该初始值,最后根据不同载荷下的加载接触分析(Loaded Tooth Contact Analysis, LTCA)结果优化得到不同载荷下的螺旋锥齿轮加工参数。对算例的数值分析结果表明,对于长期传递较轻载荷、而偶尔传递额定载荷的螺旋锥齿轮副,按额定载荷进行几何设计,按较轻载荷设计加工参数会使传动性能更优良。滚动检验的结果验证了加工参数改变后数值分析出的接触区的正确性。论文具体进行了如下探索： (1)推导HFT法、SGG法加工参数的计算公式； (2)以螺旋锥齿轮的加工参数为自变量,以传动性能指标为因变量,研究了HFT法(弧齿准双曲面齿轮副的大轮用成形法加工,小轮用刀倾法加工)加工的齿轮副在不同载荷条件下因变量与自变量之间的相关关系； (3)定量分析不同加工方法对应的自变量对齿面的影响规律,筛选掉与所研究的因变量不相关的部分自变量,制定试验方案；借助CATIA软件建立了螺旋锥齿轮的不同加工方法对应的齿轮几何模型,将齿轮几何模型导入ABAQUS软件进行LTCA,通过有限元后处理获取因变量在加工参数、载荷变化时的响应；分析不同加工参数、不同载荷条件下的因变量响应情况。对于所采用的HFT法算例,大轮扭矩不超过2000N.m,滚比倍数在1～1.0025内增加时,齿面最大接触应力的增加量在8.6%以内,而传动误差幅值的减小量可以达到31.5%,重合度也有的3.3%的增大； (4)由于SGG法的加工参数对齿面的影响规律与HFT法相似,因此依据传统摇台式机床向YK2210型铣齿机的运动等效转换原则,拓宽YK2210型数控螺旋锥齿轮铣齿机(以下简称“YK2210型铣齿机”)的加工范围,开发了SGG法加工程序,加工了两套齿轮,并进行滚动检验实验,滚动检验的结果验证了论文LTCA方法的正确性。
[Abstract]:Based on the results of local synthesis method, the main method for calculating the machining parameters of spiral bevel gears (including tool geometry parameters and machine tool adjustment parameters) is to modify the results of tooth surface contact analysis (Tooth Contact Analysis, TCA). However, the influence of load on transmission performance (including the maximum contact stress of tooth surface, the maximum bending stress of tooth root, the amplitude of transmission error, the degree of coincidence, etc.) has not been fully considered, and the life and noise of gear pair have not reached the optimal level. In this paper, an improved method for calculating the machining parameters of spiral bevel gear is proposed. The initial value of machining parameters of spiral bevel gear is calculated by local synthesis method, and the initial value is corrected according to TCA results. Finally, the machining parameters of spiral bevel gear under different loads are optimized according to the (Loaded Tooth Contact Analysis, LTCA) results of load contact analysis under different loads. The numerical results of numerical analysis show that the geometric design of spiral bevel gear pairs which transmit light load for a long time and the spiral bevel gear pair occasionally transfer rated load can make the transmission performance better according to the geometric design of rated load and the design of machining parameters according to lighter load. The results of rolling test verify the accuracy of the numerical analysis of the contact area after the change of machining parameters. The main contents of this paper are as follows: (1) deducing the formula of HFT method and SGG method; (2) taking the machining parameters of spiral bevel gear as independent variable and transmission performance index as dependent variable, the HFT method is studied. The correlation between dependent variable and independent variable under different load conditions; (3) quantitative analysis of the influence of independent variables of different processing methods on the tooth surface, screening out some independent variables that are not related to the dependent variables studied, and formulating the test plan; The gear geometry model corresponding to different machining methods of spiral bevel gear is established by using CATIA software. The gear geometry model is imported into ABAQUS software to obtain the response of dependent variables under machining parameters and load changes through finite element post-processing. The response of dependent variables under different processing parameters and loading conditions is analyzed. For the example of HFT method adopted, when the torque of large wheel is not more than 2000N.m, the maximum contact stress of tooth surface is increased within 8.6% when the ratio of roll ratio is increased within 1 ~ 1.0025, and the amplitude of transmission error can be reduced by 31.5%. The degree of coincidence also increased by 3.3%; (4) because the influence of processing parameters of SGG method on tooth surface is similar to that of HFT method, according to the principle of equivalent transformation from traditional shaking table machine to YK2210 type gear milling machine, To widen the machining range of YK2210 type NC spiral bevel gear milling machine (hereinafter referred to as "YK2210 type milling machine"), the program of SGG method is developed, two sets of gears are machined, and the rolling inspection experiment is carried out. The result of rolling test verifies the correctness of LTCA method in this paper.
【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.41
本文编号：2371178
[Abstract]:Based on the results of local synthesis method, the main method for calculating the machining parameters of spiral bevel gears (including tool geometry parameters and machine tool adjustment parameters) is to modify the results of tooth surface contact analysis (Tooth Contact Analysis, TCA). However, the influence of load on transmission performance (including the maximum contact stress of tooth surface, the maximum bending stress of tooth root, the amplitude of transmission error, the degree of coincidence, etc.) has not been fully considered, and the life and noise of gear pair have not reached the optimal level. In this paper, an improved method for calculating the machining parameters of spiral bevel gear is proposed. The initial value of machining parameters of spiral bevel gear is calculated by local synthesis method, and the initial value is corrected according to TCA results. Finally, the machining parameters of spiral bevel gear under different loads are optimized according to the (Loaded Tooth Contact Analysis, LTCA) results of load contact analysis under different loads. The numerical results of numerical analysis show that the geometric design of spiral bevel gear pairs which transmit light load for a long time and the spiral bevel gear pair occasionally transfer rated load can make the transmission performance better according to the geometric design of rated load and the design of machining parameters according to lighter load. The results of rolling test verify the accuracy of the numerical analysis of the contact area after the change of machining parameters. The main contents of this paper are as follows: (1) deducing the formula of HFT method and SGG method; (2) taking the machining parameters of spiral bevel gear as independent variable and transmission performance index as dependent variable, the HFT method is studied. The correlation between dependent variable and independent variable under different load conditions; (3) quantitative analysis of the influence of independent variables of different processing methods on the tooth surface, screening out some independent variables that are not related to the dependent variables studied, and formulating the test plan; The gear geometry model corresponding to different machining methods of spiral bevel gear is established by using CATIA software. The gear geometry model is imported into ABAQUS software to obtain the response of dependent variables under machining parameters and load changes through finite element post-processing. The response of dependent variables under different processing parameters and loading conditions is analyzed. For the example of HFT method adopted, when the torque of large wheel is not more than 2000N.m, the maximum contact stress of tooth surface is increased within 8.6% when the ratio of roll ratio is increased within 1 ~ 1.0025, and the amplitude of transmission error can be reduced by 31.5%. The degree of coincidence also increased by 3.3%; (4) because the influence of processing parameters of SGG method on tooth surface is similar to that of HFT method, according to the principle of equivalent transformation from traditional shaking table machine to YK2210 type gear milling machine, To widen the machining range of YK2210 type NC spiral bevel gear milling machine (hereinafter referred to as "YK2210 type milling machine"), the program of SGG method is developed, two sets of gears are machined, and the rolling inspection experiment is carried out. The result of rolling test verifies the correctness of LTCA method in this paper.
【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.41
【参考文献】
相关期刊论文 前10条
1 邓效忠,方宗德,杨宏斌,魏冰阳;高重合度弧齿锥齿轮的强度分析[J];航空动力学报;2002年03期
2 唐进元;曹康;周超;李国顺;;小轮齿面误差与调整参数误差敏感性研究[J];航空动力学报;2009年09期
3 唐进元;黄云飞;周超;卢延峰;;弧齿锥齿轮展成齿面的几何建模[J];计算机仿真;2009年02期
4 唐进元;蒲太平;戴进;;SGM法加工的螺旋锥齿轮几何建模研究[J];机械传动;2008年01期
5 唐进元;陈嫦;蒲太平;;考虑误差、轴变形和轴承刚度的弧齿锥齿轮LTCA[J];机械传动;2010年05期
6 刘鹄然,陈良玉,刘志峰;奥利康与克林根贝尔格制铣齿机工作原理的新认识[J];机械传动;1998年03期
7 罗建勤,曾韬;用差曲面确定螺旋锥齿轮的齿面接触区[J];机械传动;1999年01期
8 张秀亲;邵家辉;;圆弧齿轮的诞生、发展及应用回顾[J];机械技术史;2002年00期
9 王三民,沈允文;具有最佳加载接触性能的弧齿锥齿轮主动设计研究[J];机械科学与技术;2001年05期
10 魏冰阳,任东锋,方宗德,周彦伟;传统机床与Free-Form型机床运动的等效转换[J];机械科学与技术;2004年04期
相关硕士学位论文 前1条
1 蒲太平;螺旋锥齿轮加载接触分析及啮合刚度的有限元计算方法研究[D];中南大学;2010年
，本文编号：2371178
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