装载机结构件疲劳试验机的设计  

Design of Fatigue Testing Machine for Structure Component of Loader

作　　者：蔡应强[1,2,3] 肖龙海[1,2,3] 

机构地区：[1]集美大学轮机工程学院,福建厦门361021 [2]华侨大学机电及自动化学院,福建厦门361021 [3]福建省船舶与海洋工程重点实验室,福建厦门361021

出　　处：《华侨大学学报（自然科学版）》2017年第2期141-146,共6页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金资助项目(2016J01248);福建省教育厅科技项目(JAT160280);福建省科技厅高校产学研项目(2014H6020)

摘　　要：为了查找装载机结构件应力薄弱部位,优化结构设计、提高疲劳寿命,采用电液伺服技术和可编程逻辑控制器(PLC)控制技术设计一套专门测试结构件疲劳强度的试验系统.该系统采用整机正面加侧面的加载方案,由触摸屏和PLC控制器远程控制2个伺服液压缸动作以模拟结构件受载,可实现24h无人值守试验,适用于各种型号装载机结构件的疲劳试验.试验结果表明:该试验机运转平稳,可靠性高.In this work, electro-hydraulic servo technology and programmable logic controller （PLC） technol-ogy were used to design the special fatigue strength test system to find the stress weak region of loader struc-ture components, optimize the structure designing, and improve the fatigue life, The system adopted the test scheme with front and side loading. The touch screen and PLC controller can remotely control the two servo hydraulic cylinder motion to simulate the load of structure components. The test system can run 24 hours unat-tended for a long time, and meet the requirements of different types of structure components of loaders. The results of experiment show that the fatigue testing machine can run stable and reliably.

关 键 词：疲劳试验机 装载机 结构件 电液伺服 远程控制 

分 类 号：TH871.3[机械工程—仪器科学与技术]