高速精密数控轧辊磨床中心架液压润滑系统的设计及其优化  

Design and optimization of hydraulic lubrication system for high-speed and precision CNC roll grinder’s center frame

作　　者：朱德春 吴怀超[1] 赵丽梅[1] 杨绿[1] 何沐阳 ZHU Dechun;WU Huaichao;ZHAO Limei;YANG Lyu;HE Muyang(College of Mechanical Engineering,Guizhou University,Guiyang 550025)

机构地区：[1]贵州大学机械工程学院,贵州贵阳550025

出　　处：《机械设计》2024年第4期20-27,共8页Journal of Machine Design

基　　金：贵州省科技重大专项(黔科合重大专项字[2019]3016号);贵州省高等学校重点实验室项目(黔教技[2023]009号);贵州大学培育项目(贵大培育[2019]02号)。

摘　　要：中心架作为轧辊磨床的重要部分之一,起着支承和卸荷的重要作用。文中以某型高速精密数控轧辊磨床为依据,设计了其中心架的液压润滑系统,基于AMESim软件建立该液压润滑系统模型并进行仿真计算,分析得出侧瓦和底瓦静压固定活塞直径、静压固定活塞杆径及调速阀设定流量对系统中静压腔油压特性具有显著影响。采用遗传算法对影响系统静压腔油压特性的3个参数进行优化,结果表明:优化后的中心架液压润滑系统中,静压腔油压稳定性得到了显著的改善,达到稳定状态的时间明显缩短,验证了优化方案的合理性,其结果可为轧辊磨床液压润滑系统的设计及优化研究提供理论依据。As an important part of the roll grinder,the center frame plays an important role in supporting and unloading.In this article,based on a high-precision CNC roll grinder,the center frame’s hydraulic lubrication system is designed.The model of the hydraulic lubrication system is set up and simulated with the help of the AMESim software.The analytical results show that the diameter of the static pressure fixed piston of the side and bottom pads,the rod diameter of the static pressure fixed piston and the set flow of the speed-regulating valve have significant influence on the static pressure chamber’s oil-pressure characteristics in the system.The genetic algorithm is used to optimize the three parameters affecting the static pressure chamber’s oil-pressure characteristics in the system.It is shown that the static pressure chamber’s oil-pressure stability in the center frame’s hydraulic lubrication system has significantly improved,and the time to reach the stability has significantly shortened,which verifies that the optimization is rationale.This study provides theoretical basis for design and optimization of hydraulic lubrication systems for roll grinders.

关 键 词：高速精密数控轧辊磨床 中心架 液压润滑系统 AMESIM 遗传算法 优化 

分 类 号：TH137[机械工程—机械制造及自动化]