1.郑州大学 机械与动力工程学院, 河南 郑州 450001
2.中国工程物理研究院 机械制造工艺研究所, 四川 绵阳 621000
周洋(1984— ),男,河南郑州人,博士,讲师,研究方向为齿轮设计及传动。
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周洋,李积鹏,杨光伟.轴线平行度误差对齿根变形弯曲应力的影响研究[J].机械传动,2020,44(08):71-77.
Zhou Yang,Li Jipeng,Yang Guangwei.Study on the Influence of Axis Parallelism Error on Tooth Root Deformation Bending Stress[J].Journal of Mechanical Transmission,2020,44(08):71-77.
周洋,李积鹏,杨光伟.轴线平行度误差对齿根变形弯曲应力的影响研究[J].机械传动,2020,44(08):71-77. DOI: 10.16578/j.issn.1004.2539.2020.08.013.
Zhou Yang,Li Jipeng,Yang Guangwei.Study on the Influence of Axis Parallelism Error on Tooth Root Deformation Bending Stress[J].Journal of Mechanical Transmission,2020,44(08):71-77. DOI: 10.16578/j.issn.1004.2539.2020.08.013.
为了研究轴线倾斜造成的装配平行度误差对齿轮啮合过程齿根弯曲变形的影响,设计并搭建了一套齿轮轴线可调节的齿轮箱实验台和完整的应变采集分析系统,并进行实验验证。基于调心滚子轴承内外圈的允许偏差,建立不同轴线偏移程度的齿轮组接触有限元模型,并进行动态仿真分析,获得啮合过程中的齿根应变应力分布曲线;通过对实验所需的不同轴线的调节方式的设计,对比了调节前后两轴角度的偏差实际值与理论值,验证了调节装置的可行性;最后,通过应变片采集卡等组成的应变采集系统,测试了不同轴线平行度误差下的齿根应变值,得到了相应的啮合应变应力分布曲线,并与仿真得到的啮合应变应力曲线进行对比,得出轴线平行度误差对齿根危险截面处弯曲变形应力的影响。
In order to study the influence of assembly parallelism error caused by the axis tilt on the tooth root bending deformation, a set of gearbox test platform with adjustable gear axis and a complete strain acquisition and analysis system are designed and test verification is carried out. Based on the allowable deflection of the inner and outer rings of the spherical roller bearing, a finite element model of gear contact with different degrees of axis offset is established, and dynamic simulation analysis is performed to obtain the tooth root strain and stress distribution curve during the meshing process. Through the design of different adjustment methods of different axes, the actual and theoretical values of the angular deviation of the two axes before and after adjustment are compared to verify the feasibility of the adjustment device. Finally, the tooth root strain of different axis parallel error are tested through a strain acquisition system composed of a strain gauge acquisition card, the corresponding strain and stress distribution curve is obtained, and compared with the simulation strain and stress curve, the influence of the axis parallel error on the bending deformation at the dangerous root cross section is obtained.
轴线平行度误差 可调节实验台 应变采集系统 齿根弯曲应力 动态仿真
Axis parallelism errorAdjustable test platformStrain acquisition systemTooth root bending stressDynamic simulation
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