“反L形容器”尺寸对圆柱滚子竖直振动超精滚抛效果的影响  

Influences of Size of“Reverse L-Container”on Effect of Vertical Vibration Superfinishing Rolling of Cylindrical Rollers

作　　者：梁振华 李秀红 王兴富 李文辉[2,3] 杨胜强 梁志强 LIANG Zhenhua;LI Xiuhong;WANG Xingfu;LI Wenhui;YANG Shengqiang;LIANG Zhiqiang(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan,030024;College of Aeronautics and Astronautics,Taiyuan University of Technology,Jinzhong,Shanxi,030600;Shanxi Key Laboratory of Precision Machining,Taiyuan University of Technology,Taiyuan,030024)

机构地区：[1]太原理工大学机械与运载工程学院,太原030024 [2]太原理工大学航空航天学院,晋中030600 [3]太原理工大学精密加工山西省重点实验室,太原030024

出　　处：《中国机械工程》2025年第3期444-454,共11页China Mechanical Engineering

基　　金：国家自然科学基金(51975399,51875389);中央引导地方科技发展基金(YDZJSX2022A020,YDZJSX2022B004)。

摘　　要：通过仿真及实验探究了竖直振动超精滚抛工艺中容器尺寸对圆柱滚子加工效果的影响,以“反L形容器”的角度α、尺寸d作为变量,分析了尺寸参数与滚子运动特征及表面颗粒介质力学行为间的联系。研究结果表明:随着α的增大,滚子活跃区域高度逐渐降低,轴线与水平面的偏离程度先减小后增大,外径面法向接触力先增大后减小,而切向相对速度逐渐减小;端面法向接触力先减小后增大,而切向相对速度先增大后减小;随着d的增大,滚子活跃区域高度逐渐增大,轴线与水平面的偏离程度先减小后增大,外径面法向接触力先增大后减小,端面法向接触力先减小后增大,外径面及端面切向相对速度逐渐增大。实验结果与仿真结果基本吻合。较优的容器尺寸为:α=10°,d=50 mm,加工后外径面粗糙度由0.105μm降至0.036μm,端面粗糙度由0.150μm降至0.057μm,表面轮廓相对平整,划痕基本去除。Through simulation and experiments,the influences of container sizes on the machining effectiveness of cylindrical rollers in vertical vibration superfinishing rolling processes were investigated.The relation among the dimensional parameters and the movement characteristics of rollers and the mechanical behavior of surface particles was analyzed with the angleαand size d of“reverse L-container”as variables.With the increase ofα,the height of the roller active region decreased gradually,and the deviation degree between the axis and the horizontal plane decreases first and then increased.The normal contact force of the outer diameter surface increased first and then decreased,while the tangential relative velocity decreased gradually.The normal contact force decreased first and then increased,while the tangential relative velocity increased first and then decreased.With the increase of d,the height of the roller's active region gradually increased,the deviation degree between the axis and the horizontal plane first decreased and then increased,the normal contact force of the outer diameter surface first increased and then decreased,the normal contact force of the end face first decreased and then increased,and the tangential relative velocity of the outer diameter surface and the end face increased gradually.The experimental results agree with the simulation results.The better container size:α=10°,d=50 mm,after processing,the outer diameter surface roughness value is reduced from 0.105μm to 0.036μm,the end surface roughness value is reduced from 0.150μm to 0.057μm,the surface profile is flat relatively,and the scratches are removed basically.

关 键 词：圆柱滚子 竖直振动 光整加工 容器尺寸 离散元法 

分 类 号：TH161[机械工程—机械制造及自动化]