摘要
因能够有效减小齿轮啮合过程中的冲击,改善载荷分布不均,减少振动和降低噪声,齿面修形技术在风电齿轮中被广泛应用。而成形磨削是风电齿轮加工的最后一道工序,其直接决定了齿面的最后精度。求解成形磨削的几何误差,对于规划成形磨削加工路径,提高齿面加工精度至关重要。为求解成形磨削几何误差,首先,建立了包含齿廓修形、螺旋线修形(包含鼓形修形和螺旋角修形)的齿面模型;然后,根据齿面参数、砂轮齿轮轴线公垂线长度以及交错角,求解了成形磨削的接触线,构建了成形磨削齿面;最后,利用理论齿面和成形磨削齿面,定义了成形磨削几何误差,构建了齿面成形磨削的几何误差模型;并给出了减小成形磨削几何误差的建议。
Due to properties of reducing impact,improving uneven load,and lowering noise in the mesh⁃ing process,the technology of tooth surface modified are very common in the wind power gear.As the last pro⁃cess of machining gear,form grinding determines the accuracy of gear directly.Therefore,solving geometry error of form grinding becomes vital for optimize grinding tool path and enhancing the machining precision.Thus,this paper builds a model of geometrical error.In order to solve the geometry error of form grinding,firstly,tooth sur⁃face model of gears combining the profile and axial modification(including drum and helix modification)is con⁃structed.Then,based on the tooth surface parameter,the length of common perpendicular between axes of the gear and the wheel,the contacting curve between the gear and the wheel is solved.The form grinding tooth sur⁃face is constructed.Finally,the geometrical error of tooth surfuce form grinding is defined by using the theoreti⁃cal tooth surface and form grinding tooth surface,the geometric error model of tooth surface form grinding is es⁃tablished,some suggestions are given to reduce the geometry error of form grinding.
作者
王炯
禹世航
孙玉文
Wang Jiong;Yu Shihang;Sun Yuwen(Nanjing High Speed Gear Manufacturing Co.,Ltd.,Nanjing 211100,China;Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education,Dalian University of Technology,Dalian 116024,China)
出处
《机械传动》
北大核心
2022年第7期151-157,共7页
Journal of Mechanical Transmission
关键词
成形磨削
风电齿轮
大模数
几何误差
Form grinding
Wind power gear
Large modulus
Geometry error
