摘要
额定扭矩是坑道钻探用钻杆重要性能参数,为提供钻杆扭矩测量数据的准确性,本文研究分析了影响钻杆扭矩测量的不确定因素,建立了不确定评价数学模型,以常用∅73 mm坑道钻探用钻杆为研究对象,结合质检中心实验室试验设备精度及人员操作经验数据,进行了各项标准不确定度计算及评定,并通过En值对某钻杆生产企业的钻杆转矩出厂测试数据进行了比对。
Rated torque is an important performance parameter of drill pipe used in tunnel drilling.In order to improve the accuracy of drill pipe torque measurement data,this paper studies and analyzes the uncertain factors affecting drill pipe torque measurement,and establishes the mathematical model of uncertainty evaluation.Taking the drill pipe for ∅73 mm tunnel drilling as the research object,combined with the test equipment precision and personnel operation experience data of the quality inspection center laboratory,the standard uncertainty was calculated and evaluated,and the ex factory test data of drill pipe torque of a drill pipe manufacturer was compared by En value.
作者
孙志林
SUN Zhi-lin(China Coal Research Institute,Beijing100013,China)
出处
《凿岩机械气动工具》
2021年第3期32-35,共4页
Rock Drilling Machinery & Pneumatic Tools
基金
煤炭科学技术研究院有限公司技术创新基金资助项目(2019CX-Ⅱ-09)。
关键词
坑道钻探用钻杆
额定扭矩
不确定度
En值
Drill rod for underground drilling
Rated torque
Measurement uncertainty
En value
