Analysis of dynamic response characteristics of underground anchor group in coal mine
XIE Miao1， ZHANG Hongyu1， REN Ze1,2， YANG Zhiyong1,3， ZHOU Yongli1,4， LIU Zhixiang1， LI Yuqi1
1.College of Mechanical Engineering, Liaoning Technical University, Fuxin 123000,China;
2.National Energy Group International Engineering Consulting Co.,Ltd., Beijing 100010, China;
3.Xinjiang Open-pit Mine Intelligent Production and Control Key Laboratory, Changji 831100, China;
4.Guoneng Zhuneng Group Co.,Ltd., Ordos 010300,China
Abstract：Aiming at the problems of low accuracy and large vibration of underground anchoring drilling operation in coal mine, taking the supporting anchoring group of roadheader as the research object, the dynamic mathematical model of anchoring group is constructed, and the response characteristics of each component of anchoring group in time domain and frequency domain are obtained; The dynamic software is used to solve the rigid flexible coupling dynamics and analyze the characteristics of the anchor group, and to study the vibration characteristics and mechanical characteristics of the key components of the anchor group when the telescopic frame is retracted / extended. The results show that the vibration radius of drill pipe and outrigger base with small stiffness and large deformation is relatively large, and the vibration effect is obvious; The overall stability of drilling rig components and fixed beams is good during vibration; Because the telescopic frame is a short fuselage and long-span structure in the extended state, the vibration motion parameters and mechanical parameters of each component are generally greater than those in the retracted state; Through the drilling test of the anchor group prototype, the actual vibration mode value of the system is obtained, and the relevant vibration detection system is used to measure and verify the reliability of the theoretical analysis of the drilling vibration characteristics of the key components. The obtained parameter information can be used to guide the structural strength design of the key components and the theoretical basis of the automatic positioning technology of the drill rod.
谢苗1，张鸿宇1，任泽1,2，杨志勇1,3，周永利1,4，刘治翔1，李玉岐1. 煤矿井下锚固群组动力响应特性分析[J]. 振动与冲击, 2023, 42(10): 278-288.
XIE Miao1， ZHANG Hongyu1， REN Ze1,2， YANG Zhiyong1,3， ZHOU Yongli1,4， LIU Zhixiang1， LI Yuqi1. Analysis of dynamic response characteristics of underground anchor group in coal mine. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(10): 278-288.
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