面向起重机现场的激光跟踪测量不确定度分析与应用  

Uncertainty Analysis and Application of Laser Tracker for Crane Field Measurement

作　　者：贾森 李娟娟 王国防 Jia Sen;Li Juanjuan;Wang Guofang(Henan Institute of Special Equipment Inspection Technolog,Zhengzhou 450004,China;National Center for Quality Inspection and Testing of Overhead,Gantry Cranes and Light Hoists(Henan),Zhengzhou 450004,China)

机构地区：[1]河南省特种设备检验技术研究院,郑州450004 [2]国家桥架类及轻小型起重机械质量检验检测中心(河南),郑州450004

出　　处：《科技通报》2024年第7期21-25,共5页Bulletin of Science and Technology

基　　金：河南省市场监督管理局科技计划项目(2020sj75);河南省科技研发计划联合基金(产业类)重大项目(225101610072)。

摘　　要：本文在起重机械制造测量过程内引入激光跟踪仪测量技术,对其测量基本原理进行简要分析,提出了利用激光跟踪仪测量主梁上拱度的方法。通过理论计算得到在40 m测距处,单台激光跟踪仪进行不转站的单点测量扩展不确定度约为0.294 mm,并测量了激光跟踪仪单点重复测量精度和不同测距情况下单点最大偏移距离,在精确和快速测量模式下,单点的最大偏移距离均在0.05 mm内,在40 m测量距离内5个不同测站的激光跟踪仪的测量精度也均满足实际需求。最后对1台起重机主梁上拱度进行测量并与传统方法对比,两者测量结果均值相近,激光跟踪仪测量结果重复性表现更优。The measurement technology based on the laser tracker method was introduced when the measuring process was developed in the manufacturing of lifting appliances.Subsequently,a method of measuring the main beam camber using the laser tracker was proposed when roughly analysing the fundamental principle of the measurement.Moreover,the expanded uncertainty of the single-point measurement using a laser tracker without moving the laser track was approximately 0.294 mm in the range of 40 m based on theoretical calculations.Simultaneously,the repeated singlepoint measurement accuracy of the laser tracker and single-point maximum offset distance at different ranges of various conditions were also measured.It was observed that the maximum single-point offset distance at the precise and fastmeasurement modes is both within 0.05 mm.Additionally,the measurement accuracies of the laser tracker at five different measurement stations within the measuring distance of 40 m were in accordance with the standard requirement.Lastly,the main beam of the crane camber was measured.By comparison,the laser tracker's measured results were consistently superior to those of the traditional method,although both methods produced similar average values.

关 键 词：激光跟踪仪 起重机械 特种设备 上拱度 不确定度分析 检测技术 

分 类 号：TH21[机械工程—机械制造及自动化]