基于TRIZ理论的微量润滑喷嘴设计  

Design of Minimum Quantity Lubrication Nozzle Based on TRIZ Theory

作　　者：王博[1] 于淼 陈领[1] 杨训 WANG Bo;YU Miao;CHEN Ling;YANG Xun(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学机械工程学院,成都610065

出　　处：《组合机床与自动化加工技术》2022年第5期59-61,66,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金青年基金项目(51805340);四川省重大科技专项(2020ZDZX0025)。

摘　　要：针对目前传统微量润滑喷嘴冷却润滑效率低的问题,根据微量润滑喷嘴雾化的问题分析,定义微量润滑喷嘴雾化技术冲突,提出一种基于发明问题求解理论(theory of inventive problem solving,TRIZ)的微量润滑高效冷却润滑喷嘴的创新设计方法,建立基于TRIZ冲突解决理论的微量润滑喷嘴创新设计过程模型,分析超音速雾化理论,提出超音速微量润滑喷嘴结构模型,利用数值模拟方法对所提出的结构模型进行超音速可行性研究。研究结果表明,所提出的喷嘴在进气口压强为0.2 MPa时,出口速度先增大后减小,最终处于亚音速状态;在进气口压强达到0.4 MPa时,出口速度一直增大,实现超音速;随着进气口压强继续增大,出口速度可实现超音速,但最大速度提升不明显。可为微量润滑系统的高效冷却润滑喷嘴设计提供新思路。In view of the low cooling and lubrication efficiency of traditional micro-lubrication nozzles,according to the analysis of the problem of micro-lubrication nozzle atomization,the atomization technology conflict of micro-lubrication nozzle is defined,and a theory of innovative problem solving(TRIZ)is proposed.The innovative design method of micro-lubrication and high-efficiency cooling lubrication nozzles,the establishment of the innovative design process model of micro-lubrication nozzles based on the TRIZ conflict resolution theory,the analysis of supersonic atomization theory,the proposed supersonic micro-lubrication nozzle structure model,and the numerical simulation method.The structural model conducts a supersonic feasibility study.The research results show that:When the inlet pressure of the proposed nozzle is 0.2 MPa,the outlet velocity first increases and then decreases,and finally is in a subsonic state;When the inlet pressure reaches 0.4 MPa,the outlet velocity keeps increasing,to achieve supersonic speed;As the inlet pressure continues to increase,the outlet speed can achieve supersonic speed,but the maximum speed increase is not obvious.It can provide new ideas for the design of high-efficiency cooling lubrication nozzles for micro-lubrication systems.

关 键 词：雾化性能 TRIZ 微量润滑 超音速喷嘴 

分 类 号：TH162[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]