基于CATIA的转向器摇臂轴变厚齿扇参数化建模  

Parameterization Modeling of Drop Arm Thickened Tooth Segment of Steering Gear based on CATIA

作　　者：陈诚 顾晋 王生怀[1] 陈康 Chen Cheng;Gu Jin;Wang Shenghuai;Chen Kang(School of Mechanical Engineering,Hubei University of Automotive Technology,Shiyan 442002,China;Department of Technology,Knorr-Bremse DETC Commercial Vehicle Braking Technology Co.,Ltd.,Shiyan 442003,China)

机构地区：[1]湖北汽车工业学院机械工程学院,湖北十堰442002 [2]东科克诺尔商用车制动技术有限公司技术部,湖北十堰442003

出　　处：《机械传动》2019年第6期60-63,共4页Journal of Mechanical Transmission

基　　金：国家自然科学基金面上项目(51475150);湖北省教育厅科学技术研究计划青年人才项目(Q20171805);湖北汽车工业学院大学生创新训练项目(DC2018012)

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 thick ened 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 thick ened-tooth segment models can be obtained quickly by changing the relevant parameters, which provide the basis for digital assembly and NC machining.

关 键 词：变厚齿扇 变位齿轮 CATIA 参数化建模 

分 类 号：U463.4[机械工程—车辆工程]