基于LabVIEW的往复式摩擦试验机研制  

Development of Reciprocating Friction Testing Machine Based on LabVIEW

作　　者：何涛[1,2,3,4] 李金苗 李成[1] 郝飞 王传礼 HE Tao;LI Jinmiao;LI Cheng;HAO Fei;WANG Chuanli(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan Anhui 232001,China;The State Key Laboratory of Fluid Power and Mechatronic Systems,Hangzhou 310027,China;Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment,China University of Mining&Technology,Xuzhou Jiangsu 221116,China;Anhui Key Laboratory of Mine Intelligent Equipment and Technology,Anhui University of Science&Technology Huainan Anhui 232001,China)

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001 [2]流体动力与机电系统国家重点实验室,杭州310027 [3]中国矿业大学江苏省矿山机电装备重点实验室,江苏徐州221116 [4]安徽理工大学矿山智能装备与技术安徽省重点实验室,安徽淮南232001

出　　处：《机械设计与研究》2020年第4期160-165,共6页Machine Design And Research

基　　金：国家自然科学基金资助项目(51675003);安徽高校自然科学研究基金资助项目(2008085QE216);安徽高校自然科学研究基金资助项目(KJ2018A0078);流体动力与机电系统国家重点实验室开放基金项目(GZKF-201715);江苏省矿山机电装备重点实验室开放基金(JSKL-MMEE-2018-4);安徽理工大学青年科学基金(QN2017207)项目。

摘　　要：设计并搭建了测量液压缸、乳化液泵柱塞及滑阀阀芯等移动副摩擦学性能的往复式摩擦试验机,开展了相关功能性试验研究。试验机通过应变片将摩擦力导致的柔性检测梁挠度微变形转化为电信号,并借助LabVIEW平台搭建了试验机测控系统,再结合小波包去噪与算术平均值的方法对采集数据进行后处理,实现摩擦系数、载荷、温度等测量数据的实时采集与同步显示,在此基础上针对圆柱试样开展不同载荷和转速条件下的摩擦试验研究。研究表明:试验机性能稳定,测量结果符合摩擦学规律,尤其适合开展小载荷范围(50 N^250 N)下的往复摩擦磨损试验研究。A reciprocating friction testing machine was designed and built to measure tribological properties of hydraulic cylinder,emulsion pump piston,slide valve spool and other linear motion pairs,and the relevant functional tests were carried out.The machine converts the micro-deformation of the flexible beam,which caused by friction,into electrical signal through strain gauge.The measurement and control system of testing machine is built with LabVIEW platform.Then combined with wavelet packet de-noising and arithmetic average method,the collected data are processed to realize real-time collection and synchronous display of friction coefficient,load,temperature and other measured data.At last,the friction test of cylinder under different load and rotating speed is carried out.The results show that the performance of the testing machine is stable,the test results are in accordance with the tribological law,and it is especially suitable to carry out reciprocating friction and wear test in small load,which range of 50 N to 250 N.

关 键 词：摩擦试验机 结构设计 测控系统 柔性梁 LABVIEW 

分 类 号：TH117[机械工程—机械设计及理论]