惯性摩擦焊主轴轴向闭式静压轴承瞬态润滑性能  

Transient lubrication Performance of Axial Closed Hydrostatic Bearing for Inertial Friction Welding Spindle

作　　者：代瑞春 贾文涛 高大伟 耿振坤 杨欣逸 于晓东[2] DAI Rui-chun;JIA Wen-tao;GAO Da-wei;GENG Zhen-kun;YANG Xin-yi;YU Xiao-dong(Qiqihar First Machine Tool Factory Corp.LTD.,Qiqihar Heilongjiang 161005,China;Key Laboratory of Advanced Manufacturing and Intelligent Technology,Ministry of Education,Harbin University of Science and Technology,Harbin Heilongjiang 150080,China)

机构地区：[1]齐齐哈尔第一机床有限公司,黑龙江齐齐哈尔160005 [2]哈尔滨理工大学先进制造智能化技术教育部重点实验室,黑龙江哈尔滨150080

出　　处：《林业机械与木工设备》2025年第3期101-105,110,共6页Forestry Machinery & Woodworking Equipment

基　　金：国家重点研发计划课题“轴向闭式静压承载-径向滚动支承惯性摩擦焊机主轴系统研制”(2022YFB3404902)。

摘　　要：针对航空发动机某部件高质量制造,惯性摩擦焊机主轴系统采用轴向闭式静压轴承创新型结构,建立惯性摩擦焊机主轴回转速度在轴向顶锻力作用下衰减的数学模型。建立并确定静压轴承间隙油膜三维模型及边界条件,利用计算流体力学CFD(Computational Fluid Dynamic)原理,应用动网格技术、两相流模型和Fluent仿真软件,探讨在惯性摩擦焊机承受顶锻力时,静压轴承工作全过程摩擦特性,即油膜的压力状况和温度分布情况。结果表明:承载侧油膜压力在非平衡状态时,随着承载油膜间隙厚度减小先增大后趋于稳定,承载侧油膜温升随着承载油膜间隙厚度减小而快速上升而后缓慢增长,在旋转停止时最高。背压侧油膜压力在非平衡状态时,随着背压侧油膜间隙厚度增大而减小,最终位置保持油膜压力相对稳定,背压侧油膜温升很低可以忽略。For the high-quality manufacturing of a part of the aero engine,the innovative structure of axial closed hydrostatic bearing was adopted in the spindle system of the inertial friction welding machine.Three-dimensional models and boundary conditions of clearance oil films in the hydrostatic bearing were established and determined.Utilizing CFD(Computational Fluid Dynamic),dynamic mesh technology,two-phase flow model and Fluent software,the friction characteristics of the hydrostatic bearing were studied during the whole working process,that is,the pressure and temperature distribution of clearance oil films were discussed,when the inertial friction welding equipment was subjected to the upsetting force.The results indicated that when the oil film pressure on carrier side was in non-equilibrium state,the pressure on carrier side increased first and then tended to be stable with the reduction of the thickness of oil films.The temperature rise of the carrier side oil film increased rapidly and then increased slowly with the reduction of the oil film thickness,and the temperature rise was highest when the rotation stopped.In the non-equilibrium state,the oil film pressure of the back pressure side oil film decreased with the increase of the oil film thickness,and the oil film pressure is relatively stable at the final position,and the temperature rise of the oil film on back pressure side was low and could be ignored.

关 键 词：瞬态润滑性能 闭式静压轴承 主轴系统 惯性摩擦焊装备 航空发动机 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置] S776[自动化与计算机技术—控制科学与工程]