航空发动机用滑油泵组碟簧压紧有限元分析  

Finite element analysis of disc spring compression of lubricating for aviation-engine oil pump assembly

作　　者：王勇[1] 张旭[1] 王哓林 董云 WANG Yong;ZHANG Xu;WANG Xiaolin;DONG Yun(National Research Center of Pumps,Jiangsu University,Zhenjiang,Jiangsu 212013,China;Key Laboratory of Power Transmission Technology on Aero-engine,Aero Engine Corporation of China,Shenyang,Liaoning 110015,China)

机构地区：[1]江苏大学国家水泵及系统工程技术研究中心,江苏镇江212013 [2]中国航发集团航空发动机动力传输航空科技重点实验室,辽宁沈阳110015

出　　处：《排灌机械工程学报》2024年第3期230-235,249,共7页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家自然科学基金资助项目(51979126)。

摘　　要：为保证滑油泵组关键部件配流盘与偏心泵体的稳定压紧及泵盖的安全性,依据GB/T 1972—2005标准,选用2只单片碟簧以精准对合方式安装于滑油泵组上.在考虑潜在温度场热变形的影响下,采用热固耦合方法,基于Workbench平台对滑油泵组在不同碟簧初始压缩量(0.6,0.7,0.8,0.9 mm)下进行有限元分析.研究结果表明:当初始压缩量小于0.7 mm时,滑油泵的主要部件受到的压紧力较小,主要受油液周向推力的影响;随着初始压缩量从0.7 mm增至0.9 mm,预压缩端的变形量呈现相应的增长趋势,同时滑油泵体挡板所承受的轴向力也随着初始压缩量的递增而呈现线性增长的规律;在此过程中,配流盘与偏心泵体所受到的轴向推力随着初始压缩量的增大而逐渐增大,确保其能够有效地被压紧且泵盖保持完好无损.研究结果不仅为滑油泵组的初始安装提供了理论依据,而且有助于指导实际工程应用中的安装操作,从而确保滑油泵组的正常运行与使用寿命.To ensure the stable compression of the key components of the lubricating oil pump assembly,such as the port plate and the eccentric pump body,as well as the safety of the pump cover,according to the GB/T 1972—2005 standard,two single-piece disc springs were installed on the lubricating oil pump assembly in an accurate alignment method.Considering the potential impact of thermal deformation in the temperature field,a thermal-solid coupling method was used to perform finite element analysis of the lubricating oil pump set based on the Workbench platform under different initial compression amounts(0.6,0.7,0.8,0.9 mm)of the disc springs.The results show that when the initial compression amount is less than 0.7 mm,the main components of the lubricating oil pump receive a smaller compressive force and are mainly affected by the circumferential thrust of the oil.As the initial compression amount increases from 0.7 mm to 0.9 mm,the deformation of the pre-compressed end shows a corresponding increase trend.At the same time,the axial force borne by the baffle of the oil pump body also exhibits a linear growth characteristic with the increase of compression.In this process,the axial thrust of the port plate and the eccentric pump body gradually increases with the increase of compression,ensuring that they can be effectively compressed and the pump cover remains intact and undamaged.This study provides a theoretical basis for the initial installation of the oil pump assembly,and helps guide the installation operation in practical engineering applications,thus ensuring the normal operation and service life of the lubricating oil pump assembly.

关 键 词：滑油泵 碟簧 初始压缩量 数值模拟 热固耦合 

分 类 号：S277.9[农业科学—农业水土工程] TH325[农业科学—农业工程]