基于CATIA的转向器摇臂轴变厚齿扇参数化建模
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摘要
建立了变位齿轮渐开线的直角坐标方程,为变位齿轮的参数化建模提供了理论基础。分析了转向器摇臂轴变厚齿扇结构特点,基于CATIA建立变位齿轮渐开线参数化方程,详细介绍了变厚齿扇的参数化三维建模方法,并对转向器电子样机进行了空间分析和运动仿真。该方法建模精度高,非常方便,只需改变相关参数就可以快速获得准确的变厚齿扇模型,为转向器的数字化装配和数控加工提供了依据。
The modified gear involute equation under Cartesian coordinates system is established and the theory foundation is provided for parameterization modeling of modified gear. The character of drop arm thickened-tooth segment of steering gear is analyzed. The modified gear involute parameterization equation is established based on the CATIA and the method of parameterization three-dimensional modeling of the thickened tooth segment is detailed. Then the space analysis and motion simulation are implemented for the Digital Mock-Up of steering gear. This method is high modeling accuracy, it is very convenient and the accurate thickened-tooth segment models can be obtained quickly by changing the relevant parameters, which provide the basis for digital assembly and NC machining.
The modified gear involute equation under Cartesian coordinates system is established and the theory foundation is provided for parameterization modeling of modified gear. The character of drop arm thickened-tooth segment of steering gear is analyzed. The modified gear involute parameterization equation is established based on the CATIA and the method of parameterization three-dimensional modeling of the thickened tooth segment is detailed. Then the space analysis and motion simulation are implemented for the Digital Mock-Up of steering gear. This method is high modeling accuracy, it is very convenient and the accurate thickened-tooth segment models can be obtained quickly by changing the relevant parameters, which provide the basis for digital assembly and NC machining.
引文
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[3]侯红玲.斜齿轮及斜齿变位齿轮的参数化建模[J].机械设计与制造,2015(8):214-217.
[4]孙桓,傅则绍.机械原理[M].北京:高等教育出版社,1988:229-231.
[5]张枫念,肖大友,施惠.对汽车转向器变厚齿的研究[J].传动技术,2001(4):14-19.
[6]陈奇,赵韩,黄康.变位齿轮的齿根过渡曲线精确计算及在CATIA中工程图的快速实现[J].工程图学学报,2010(5):163-167.
[7]全国齿轮标准化技术委员会.锥齿轮和准双曲面齿轮精度:GB/T 11365-1989[S].北京:中国标准出版社,1989:29-30.
[2]张学文. CATIA机械零件参数化设计[M].北京:机械工业出版社,2017:165-168.
[3]侯红玲.斜齿轮及斜齿变位齿轮的参数化建模[J].机械设计与制造,2015(8):214-217.
[4]孙桓,傅则绍.机械原理[M].北京:高等教育出版社,1988:229-231.
[5]张枫念,肖大友,施惠.对汽车转向器变厚齿的研究[J].传动技术,2001(4):14-19.
[6]陈奇,赵韩,黄康.变位齿轮的齿根过渡曲线精确计算及在CATIA中工程图的快速实现[J].工程图学学报,2010(5):163-167.
[7]全国齿轮标准化技术委员会.锥齿轮和准双曲面齿轮精度:GB/T 11365-1989[S].北京:中国标准出版社,1989:29-30.