一种圆柱分度凸轮液压装载机故障诊断方法  

A Fault Diagnosis Method for Cylindrical Indexing Cam Hydraulic Loader

作　　者：林希[1] 孙延 LIN Xi;SUN Yan(Mechanical Engineering College of Shanxi Polytechnic Institute,Xianyang 712000,China)

机构地区：[1]陕西工业职业技术学院机械工程学院,陕西咸阳712000

出　　处：《液压气动与密封》2023年第1期90-93,共4页Hydraulics Pneumatics & Seals

基　　金：陕西省科技厅项目(2021GY-281)。

摘　　要：圆柱分度凸轮是一种重要的间歇式运动机构,针对液压装载机动态装载中极易出现圆柱分度凸轮惯性载荷,导致装载机运动稳定性下降的问题,在圆柱分度凸轮机构工作原理和液压装载机部件结构基础上,设计了液压装载机的故障诊断系统,通过获取圆柱分度凸轮机构运动特性值,输入到神经网络模型中进行训练,提取到相关的故障信息作为液压装载机的故障诊断系统的输入进行故障诊断,最后在构建的液压装载机实验台架中进行故障模拟试验,试验结果表明所设计的诊断方法能够满足液压装载机的故障诊断目标。Cylindrical indexing cam is an important intermittent motion mechanism.Aiming at the problem that the inertia load of cylindrical indexing cam is easy to appear in the dynamic loading of hydraulic loader,which leads to the decline of the motion stability of loader,based on the working principle of cylindrical indexing cam mechanism and the component structure of hydraulic loader,a fault diagnosis system of hydraulic loader is designed,The motion characteristic values of cylindrical indexing cam mechanism are obtained and input into the neural network model for training.The relevant fault information is extracted as the input of the fault diagnosis system of the hydraulic loader for fault diagnosis.Finally,the fault simulation test is carried out in the constructed hydraulic loader experimental platform,The test results show that the designed diagnosis method can meet the fault diagnosis goal of hydraulic loader.

关 键 词：圆柱分度凸轮 液压装载机 惯性载荷 故障诊断系统 故障模拟 

分 类 号：TH137[机械工程—机械制造及自动化] TH112.2