轴承
軸承
축승
BEARING
2014年
7期
18-21
,共4页
关节轴承%冷挤压%装配%有限元法
關節軸承%冷擠壓%裝配%有限元法
관절축승%랭제압%장배%유한원법
spherical plain bearing%cold extrusion%assembly%FEM
针对关节轴承挤压装配后内外圈可能会出现间隙过大、过小或者不均匀等现象，以有限元软件 ABAQUS为平台，根据 GEW12DEM1T 关节轴承冷挤压装配的实际情况，建立二维轴对称弹塑性有限元模型。研究关节轴承挤压变形过程和回弹过程，得出挤压过程中金属塑性成形的流动规律、内外圈接触应力分布情况和回弹后内外圈间隙分布情况。挤压后内外圈接触应力分布情况表现为中间小两端大；而回弹后，内外圈间隙分布情况也表现为中间小两端大。
針對關節軸承擠壓裝配後內外圈可能會齣現間隙過大、過小或者不均勻等現象，以有限元軟件 ABAQUS為平檯，根據 GEW12DEM1T 關節軸承冷擠壓裝配的實際情況，建立二維軸對稱彈塑性有限元模型。研究關節軸承擠壓變形過程和迴彈過程，得齣擠壓過程中金屬塑性成形的流動規律、內外圈接觸應力分佈情況和迴彈後內外圈間隙分佈情況。擠壓後內外圈接觸應力分佈情況錶現為中間小兩耑大；而迴彈後，內外圈間隙分佈情況也錶現為中間小兩耑大。
침대관절축승제압장배후내외권가능회출현간극과대、과소혹자불균균등현상，이유한원연건 ABAQUS위평태，근거 GEW12DEM1T 관절축승랭제압장배적실제정황，건립이유축대칭탄소성유한원모형。연구관절축승제압변형과정화회탄과정，득출제압과정중금속소성성형적류동규률、내외권접촉응력분포정황화회탄후내외권간극분포정황。제압후내외권접촉응력분포정황표현위중간소량단대；이회탄후，내외권간극분포정황야표현위중간소량단대。
Aiming at the excessive,small or nonuniform clearance between inner and outer rings after the extrusion as-sembly for spherical plain bearings,taking the finite element software ABAQUS as a platform,a two -dimensional axi-symmetric elastic -plastic finite element model is built according to the actual condition of cold extrusion assembly for spherical plain bearings GEW12DEM1T.The extrusion deformation process and spring back process for spherical plain bearings are studied,and the flowing rule of metal plastic forming,the contact stress distribution between inner and outer rings in the process of extrusion and the clearance distribution of inner and outer rings after spring back are ob-tained.The contact stress distribution of inner and outer rings after extrusion is big in the both ends and small in the middle,the clearance distribution of inner and outer rings after spring back is also big in the both ends and small in the middle.
